What are the cheapest airlines flying from London to Portland round-trip?

Currently priced at £527, Lufthansa will fly you from London to Portland and back. In addition to Lufthansa, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Virgin Atlantic and Icelandair - these airlines can fly you to your destination from £530 and £532, respectively. Lufthansa is 22% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from London to Portland one-way?

For one-way options, check prices for WestJet. According to our data, you can fly for as low as £375. Users have also found prices from £473 and £517 on Aer Lingus and British Airways, respectively.

What are the most popular routes from London to Portland?

The most popular route from London to Portland is London Heathrow - Portland. You may also consider London Gatwick - Portland or London City - Portland.

What are the cheapest flights from London to Portland?

While on average a flight from London to Portland is generally £1,171, our data shows the cheapest flight currently is £515. When looking at the most popular route, (London Heathrow - Portland), you can expect to pay £471 for that flight.

What are the most reliable airlines from London to Portland?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to Portland on time: American Airlines (66%), Alaska Airlines (66%), Aer Lingus (66%).

What are the most popular airlines that fly from London to Portland?

Air Canada, Finnair and British Airways are the most popular airlines when flying from London to Portland.

What is the cheapest day to fly round-trip from London to Portland?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 26% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from London to Portland?

Find a great deal and save up to 33% by booking at least 23 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London to Portland within the next two weeks, with the cheapest ticket starting at £594.

What is the cheapest month to fly from London to Portland?

The best pricing can be found in the month of March. Prices to Portland from London average £682. You can even find prices in March for less than £682, as users have found deals to Portland from as low as £470. The month of August appears to be one of the more expensive times to travel to Portland from London. Flying in the targeted month can save you up to 35%.

What airport do you fly into for flights to Portland from London?

Most people fly into Portland (PDX) if they book a flight to Portland from London. On average, Portland has 7 inbound flights from London per day from 9 airlines. Portland is conveniently located just 6.0 mi from Portland’s city center.

Can I find deals for flights from London to Portland that include hotel bookings?

Yes. In addition to deals on London to Portland flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to Portland?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Portland.

Can I find deals for business class flights from London to Portland?

Yes. Cheapflights offers flight deals from London to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£372+ Flights from London to Portland

Cheapflights Tip: The best prices from London to Portland are usually found in March or February, booked 63 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from London to Portland

Round-trip from	£525
One-way from	£372
Popular in	August
Cheapest in	March
Average price	£701
Good round-trip deal	£631 or less
Good one-way deal	£755 or less

30/4-4/5
2 total stops
38h 37m total
London to Portland

Search Deals

12/5
1 total stop
37h 50m total
London to Portland

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£84 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from London (LON) to Portland.

Search Deals

Price to beat on a one-way flight from London (LON) to Portland.

Search Deals

Find flight deals from London to Portland

Cheapest flights from London to Portland
Explore the most affordable flight options available from London to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.

Wed 30/410:55LGW - PDX

1 stop17h 42mMultiple Airlines

Sun 4/506:00PDX - LGW

1 stop20h 55mMultiple Airlines

Deal found 14/4£525

Tue 13/506:30LHR - PDX

2 stops19h 47mLufthansa

Tue 20/515:25PDX - LHR

1 stop13h 55mLufthansa

Deal found 15/4£527

Tue 13/514:45LHR - PDX

1 stop28h 35mVirgin Atlantic

Tue 20/513:21PDX - LHR

1 stop13h 59mVirgin Atlantic

Deal found 15/4£530

Wed 20/813:05LHR - PDX

1 stop12h 50mIcelandair

Mon 22/915:20PDX - LHR

1 stop12h 35mIcelandair

Deal found 14/4£532

Sat 10/508:45LHR - PDX

2 stops20h 08mUnited Airlines

Wed 14/506:50PDX - LHR

2 stops15h 55mUnited Airlines

Deal found 14/4£537

Fri 2/508:40LHR - PDX

2 stops21h 56mMultiple Airlines

Sat 10/512:55PDX - LHR

1 stop15h 25mMultiple Airlines

Deal found 14/4£539

Mon 15/915:40LHR - PDX

Nonstop9h 55mBritish Airways

Mon 29/919:25PDX - LHR

Nonstop9h 35mBritish Airways

Deal found 14/4£547

Wed 30/410:15LHR - PDX

2 stops20h 40mAir Canada

Sun 4/519:40PDX - LHR

2 stops32h 10mAir Canada

Deal found 14/4£550

Mon 5/511:00LTN - PDX

3 stops39h 05mMultiple Airlines

Mon 12/515:20PDX - LTN

2 stops21h 15mMultiple Airlines

Deal found 14/4£558

Sat 26/415:40LHR - PDX

Nonstop9h 55mFinnair

Sat 3/506:00PDX - LHR

1 stop18h 35mFinnair

Deal found 14/4£562

Wed 30/406:30LHR - PDX

1 stop12h 50mKLM

Thu 8/515:30PDX - LHR

1 stop14h 45mKLM

Deal found 14/4£563

Mon 18/815:40LGW - PDX

1 stop34h 15mIcelandair

Wed 24/915:20PDX - LGW

1 stop15h 20mIcelandair

Deal found 14/4£565

Best flights from London to Portland
Discover carefully curated flight deals from London to Portland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 April 2025.

Wed 30/410:55LGW - PDX

1 stop17h 42mMultiple Airlines

Sun 4/506:00PDX - LGW

1 stop20h 55mMultiple Airlines

Deal found 14/4£525

Tue 13/506:30LHR - PDX

2 stops19h 47mLufthansa

Tue 20/515:25PDX - LHR

1 stop13h 55mLufthansa

Deal found 15/4£527

Tue 13/514:45LHR - PDX

1 stop28h 35mVirgin Atlantic

Tue 20/513:21PDX - LHR

1 stop13h 59mVirgin Atlantic

Deal found 15/4£530

Wed 20/813:05LHR - PDX

1 stop12h 50mIcelandair

Mon 22/915:20PDX - LHR

1 stop12h 35mIcelandair

Deal found 14/4£532

Sat 10/508:45LHR - PDX

2 stops20h 08mUnited Airlines

Wed 14/512:55PDX - LHR

1 stop12h 45mUnited Airlines

Deal found 14/4£537

Mon 15/915:40LHR - PDX

Nonstop9h 55mBritish Airways

Mon 29/919:25PDX - LHR

Nonstop9h 35mBritish Airways

Deal found 14/4£547

Wed 30/410:15LHR - PDX

2 stops20h 40mAir Canada

Sun 4/519:40PDX - LHR

2 stops32h 10mAir Canada

Deal found 14/4£550

Sat 26/415:40LHR - PDX

Nonstop9h 55mFinnair

Sat 3/506:00PDX - LHR

1 stop18h 35mFinnair

Deal found 14/4£562

Mon 28/415:40LHR - PDX

Nonstop9h 55mAmerican Airlines

Mon 12/519:25PDX - LHR

Nonstop9h 35mAmerican Airlines

Deal found 14/4£576

Wed 30/411:45LHR - PDX

2 stops19h 59mDelta

Sun 4/517:15PDX - LHR

1 stop13h 00mDelta

Deal found 14/4£597

Wed 3/915:40LHR - PDX

Nonstop9h 55mIberia

Sat 20/919:25PDX - LHR

Nonstop9h 35mIberia

Deal found 14/4£598

Sun 17/820:55LHR - PDX

1 stop22h 25mKLM

Wed 24/915:15PDX - LHR

1 stop15h 00mKLM

Deal found 14/4£603

Direct flights from London to Portland
Explore direct flight options from London to Portland based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 April 2025.

Mon 15/915:40LHR - PDX

Nonstop9h 55mBritish Airways

Mon 29/919:25PDX - LHR

Nonstop9h 35mBritish Airways

Deal found 14/4£547

Mon 28/415:40LHR - PDX

Nonstop9h 55mAmerican Airlines

Mon 12/519:25PDX - LHR

Nonstop9h 35mAmerican Airlines

Deal found 14/4£576

Mon 28/415:40LHR - PDX

Nonstop9h 55mMultiple Airlines

Mon 12/519:25PDX - LHR

Nonstop9h 35mMultiple Airlines

Deal found 14/4£584

Wed 3/915:40LHR - PDX

Nonstop9h 55mIberia

Sat 20/919:25PDX - LHR

Nonstop9h 35mIberia

Deal found 14/4£598

Sat 26/415:40LHR - PDX

Nonstop9h 55mFinnair

Mon 5/519:25PDX - LHR

Nonstop9h 35mFinnair

Deal found 14/4£632

Last-minute flights from London to Portland
Discover last-minute flight deals from London to Portland. Data last updated 15 April 2025 and is based on user searches.

Mon 21/414:10LHR - PDX

1 stop12h 15mLufthansa

Sun 27/407:54PDX - LHR

1 stop15h 31mLufthansa

Deal found 14/4£543

Mon 21/414:10LHR - PDX

1 stop12h 15mAir Canada

Mon 5/510:00PDX - LHR

2 stops17h 50mAir Canada

Deal found 14/4£558

Mon 21/406:30LHR - PDX

2 stops17h 51mDelta

Mon 5/515:10PDX - LHR

1 stop12h 10mDelta

Deal found 14/4£567

Mon 21/415:40LHR - PDX

Nonstop9h 55mBritish Airways

Mon 5/511:39PDX - LHR

1 stop15h 11mBritish Airways

Deal found 14/4£568

Mon 21/415:40LHR - PDX

Nonstop9h 55mAmerican Airlines

Mon 5/513:55PDX - LHR

1 stop14h 50mAmerican Airlines

Deal found 14/4£571

Mon 21/415:40LHR - PDX

Nonstop9h 55mFinnair

Mon 5/519:25PDX - LHR

Nonstop9h 35mFinnair

Deal found 14/4£577

Mon 21/414:20LHR - PDX

1 stop17h 39mIberia

Sun 27/419:25PDX - LHR

Nonstop9h 35mIberia

Deal found 14/4£580

Mon 21/410:00LGW - PDX

1 stop21h 44mMultiple Airlines

Mon 5/518:55PDX - LGW

2 stops27h 25mMultiple Airlines

Deal found 14/4£679

Mon 21/409:50LCY - PDX

2 stops20h 32mVirgin Atlantic

Mon 5/513:55PDX - LCY

2 stops18h 45mVirgin Atlantic

Deal found 14/4£838

Mon 21/421:25LHR - PDX

2 stops34h 19mIcelandair

Sat 26/416:00PDX - LHR

2 stops44h 20mIcelandair

Deal found 14/4£840

Mon 21/411:35LCY - PDX

2 stops17h 14mKLM

Sun 27/413:15PDX - LCY

1 stop11h 35mKLM

Deal found 14/4£873

Thu 24/406:50LHR - PDX

2 stops21h 24mUnited Airlines

Sun 4/505:00PDX - LHR

1 stop23h 20mUnited Airlines

Deal found 14/4£543

One-way flights from London to Portland
Search for one-way flight options from London to Portland. Find affordable one-way fares based on user searches. Data last updated 15 April 2025.

Mon 12/513:05LGW - PDX

1 stop37h 50mMultiple Airlines

Deal found 13/4£372

Sat 10/511:40STN - PDX

3 stops30h 08mMultiple Airlines

Deal found 13/4£373

Mon 12/513:45LHR - PDX

3 stops30h 57mMultiple Airlines

Deal found 13/4£375

Sat 10/510:45LGW - PDX

3 stops34h 07mWestJet

Deal found 13/4£375

Fri 9/514:10LHR - PDX

1 stop30h 55mWestJet

Deal found 13/4£407

Mon 2/608:50LTN - PDX

3 stops22h 05mMultiple Airlines

Deal found 15/4£407

Mon 1/907:40LHR - PDX

2 stops22h 30mAer Lingus

Deal found 14/4£473

Tue 13/515:40LHR - PDX

Nonstop9h 55mBritish Airways

Deal found 14/4£517

Fri 5/916:15LHR - PDX

1 stop14h 36mLufthansa

Deal found 14/4£529

Sat 7/621:25LHR - PDX

1 stop28h 30mIcelandair

Deal found 14/4£530

Tue 13/515:40LHR - PDX

Nonstop9h 55mIberia

Deal found 14/4£540

Sat 10/513:00LGW - PDX

1 stop12h 55mIcelandair

Deal found 13/4£543

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Wed 30/4

10:55-20:37

1 stop17h 42m

Portland

Sun 4/5

06:00-10:55

1 stop20h 55m

£525

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 13/5

06:30-18:17

2 stops19h 47m

Portland

Tue 20/5

15:25-13:20

1 stop13h 55m

£527

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 13/5

14:45-11:20

1 stop28h 35m

Portland

Tue 20/5

13:21-11:20

1 stop13h 59m

£530

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Wed 20/8

13:05-17:55

1 stop12h 50m

Portland

Mon 22/9

15:20-11:55

1 stop12h 35m

£532

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Sat 10/5

08:45-20:53

2 stops20h 08m

Portland

Wed 14/5

12:55-09:40

1 stop12h 45m

£537

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Fri 2/5

08:40-22:36

2 stops21h 56m

Portland

Sat 10/5

12:55-12:20

1 stop15h 25m

£539

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 15/9

15:40-17:35

Nonstop9h 55m

Portland

Mon 29/9

19:25-13:00

Nonstop9h 35m

£547

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Wed 30/4

10:15-22:55

2 stops20h 40m

Portland

Sun 4/5

19:40-11:50

2 stops32h 10m

£550

LondonPortland

LTN - PDX

LTNPDX

London Luton

Mon 5/5

11:00-18:05

3 stops39h 05m

Portland

Mon 12/5

15:20-20:35

2 stops21h 15m

£558

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Sat 26/4

15:40-17:35

Nonstop9h 55m

Portland

Sat 3/5

06:00-08:35

1 stop18h 35m

£562

Flights are sorted by cheapest return flights first.

Deals found on 13/4

Showing 1-10 of 59 results

...

Best time to book a flight from London to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from London with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Portland

How far ahead should I book a flight from London to Portland?

The best time to book flights from London to Portland is 63 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London to Portland?

Currently, January is the cheapest month in which you can book a flight from London to Portland (average of £736). Flying from London to Portland in July is currently the most expensive (average of £1,048). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to PDX?

When flying from London to Portland, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 20% versus a flight in the afternoon.

What is the cheapest day to fly from London to Portland?

Travellers seeking maximum savings on their London to Portland flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to Portland

The most flights from LON to PDX are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Portland by month

In terms of precipitation, rainfall in Portland ranges from 18.0 - 142.0 inches per month. November is typically the wettest month, when rainfall can reach 142.0 mm. July is typically the driest time to visit Portland when rainfall is around 18.0 mm.

Temperature in Portland by month

If weather is an important factor for your trip to Portland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Portland

Peruse reviews from past customers who have flown with Delta, KLM and Finnair from London to Portland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

7,917 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,323 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,269 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France

7.5

Good

1,435 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS

7.5

Good

1,578 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What airport do you fly into for flights to Portland from London?
Most people fly into Portland (PDX) if they book a flight to Portland from London. On average, Portland has 7 inbound flights from London per day from 9 airlines. Portland is conveniently located just 6.0 mi from Portland’s city center.
What are the cheapest airlines flying from London to Portland round-trip?
Currently priced at £527, Lufthansa will fly you from London to Portland and back. In addition to Lufthansa, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Virgin Atlantic and Icelandair - these airlines can fly you to your destination from £530 and £532, respectively. Lufthansa is 22% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from London to Portland one-way?
For one-way options, check prices for WestJet. According to our data, you can fly for as low as £375. Users have also found prices from £473 and £517 on Aer Lingus and British Airways, respectively.
What are the most popular routes from London to Portland?
The most popular route from London to Portland is London Heathrow - Portland. You may also consider London Gatwick - Portland or London City - Portland.
What are the most reliable airlines from London to Portland?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to Portland on time: American Airlines (66%), Alaska Airlines (66%), Aer Lingus (66%).
What are the cheapest flights from London to Portland?
While on average a flight from London to Portland is generally £1,171, our data shows the cheapest flight currently is £515. When looking at the most popular route, (London Heathrow - Portland), you can expect to pay £471 for that flight.
Can I find deals for flights from London to Portland that include hotel bookings?
Yes. In addition to deals on London to Portland flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Portland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Portland.
Can I find deals for business class flights from London to Portland?
Yes. Cheapflights offers flight deals from London to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to Portland?
Currently, January is the cheapest month in which you can book a flight from London to Portland (average of £736). Flying from London to Portland in July is currently the most expensive (average of £1,048). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Cannon Beach

Lincoln City

Browse thousands of different options on Cheapflights for your next trip

Fly from London to Portland on these airlines

British Airways flights from London to Portland

Finnair flights from London to Portland

Virgin Atlantic flights from London to Portland

Alternative routes for London to Portland

Other flights to Portland

Heathrow to Portland flights

Portland to Los Angeles flights

Portland to Newark Airport flights

Portland to London Heathrow Airport flights

Portland to Seattle flights

Portland to San Francisco flights

Portland to London Heathrow Airport flights

Top 9 airlines flying from London to Portland

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£451	Average£674	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Finnair	Cheapest£500	Average£634	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Air Canada	Cheapest£506	Average£565	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Virgin Atlantic	Cheapest£520	Average£678	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£523	Average£722	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£525	Average£625	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Lufthansa	Cheapest£529	Average£645	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Iberia	Cheapest£554	Average£802	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
KLM	Cheapest£566	Average£718	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to Portland?

Cheapflights helps you search for flights from London to Portland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to Portland?

Cheapflights helps you find that perfect flight to Portland from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to Portland with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Portland, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to Portland become cheaper?

Yes, Cheapflights offers price alerts on London to Portland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from London to Portland from £372

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to Portland are usually found in March or February, booked 63 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from London to Portland

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from London to Portland

Cheapest flights from London to PortlandExplore the most affordable flight options available from London to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.

Explore the most affordable flight options available from London to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Portland that are best for you.

Best time to book a flight from London to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from London with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London to Portland

How far ahead should I book a flight from London to Portland?

Use this chart to determine the optimal time to book a return flight from London to Portland. Price data was last updated on 11 April 2025.

What is the cheapest month to book a flight from London to Portland?

What is the cheapest time of day to fly from LON to PDX?

Find hourly flight availability from London to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 April 2025.

What is the cheapest day to fly from London to Portland?

Use this chart to determine the cheapest time to fly return from London to Portland. Price data was last updated on 20 October 2024.

Weekly flight availability from London to Portland

Explore weekly flight availability from London to Portland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 April 2025.

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

Reviews of airlines servicing Portland

Peruse reviews from past customers who have flown with Delta, KLM and Finnair from London to Portland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Portland from London?

What are the cheapest airlines flying from London to Portland round-trip?

What are the cheapest airlines to fly from London to Portland one-way?

What are the most popular routes from London to Portland?

What are the most reliable airlines from London to Portland?

What are the cheapest flights from London to Portland?

Can I find deals for flights from London to Portland that include hotel bookings?

How can I find direct flights from London to Portland?

Can I find deals for business class flights from London to Portland?

What is the cheapest month to book a flight from London to Portland?

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Fly from London to Portland on these airlines

Choose from the following airlines for your flight from London to Portland. Flights are based on user searches made on Cheapflights and were last updated on 15 April 2025.

Top 9 airlines flying from London to Portland

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Cheapest flights from London to Portland
Explore the most affordable flight options available from London to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.