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Cheap flights from Portland to London from £178

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 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LON
24 Dec — 31 Dec1
1 adult

The best prices from Portland to London are usually found in November or October, booked 23 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Portland to London

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 December 2024.

Round-trip from

£511

One-way from

£178

Popular in

June

Cheapest in

November

Average price

£733
SWISS
  • SWISS
  • 4/5-22/5
  • 3 total stops
  • 43h 50m total
  • Portland to London
Search Deals
23/1
  • 23/1
  • 2 total stops
  • 59h 20m total
  • Portland to London
Search Deals
High demand for flights, 22% potential price rise
Search Deals
Best time to find cheap flights, 4% potential price drop
Search Deals
Average for round-trip flights in December 2024
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Find flight deals from Portland to London

Cheapest flights from Portland to London
Explore the most affordable flight options available from Portland to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.

Mon 30/1210:18PDX - LHR
1 stop15h 42mKLM
Mon 6/120:25LHR - PDX
1 stop23h 00mKLM
Deal found 18/12£726
Tue 17/1213:25PDX - LCY
1 stop12h 05mDelta
Tue 24/1207:45LCY - PDX
2 stops20h 36mDelta
Deal found 16/12£773
Thu 26/1210:10PDX - LHR
1 stop16h 00mLufthansa
Sun 19/106:30LHR - PDX
2 stops19h 54mLufthansa
Deal found 18/12£785
Thu 26/1215:39PDX - LHR
1 stop15h 46mAmerican Airlines
Sun 19/114:20LHR - PDX
Nonstop10h 15mAmerican Airlines
Deal found 18/12£823
Mon 23/1221:14PDX - LGW
1 stop29h 21mMultiple Airlines
Fri 27/1212:00LGW - PDX
1 stop19h 34mMultiple Airlines
Deal found 17/12£846
Mon 30/1206:20PDX - LHR
2 stops16h 30mVirgin Atlantic
Mon 6/120:25LHR - PDX
1 stop23h 00mVirgin Atlantic
Deal found 18/12£921
Thu 26/1205:40PDX - LHR
1 stop22h 25mMultiple Airlines
Thu 2/108:20LHR - PDX
1 stop20h 55mMultiple Airlines
Deal found 18/12£1,193
Wed 25/1218:30PDX - LHR
Nonstop9h 40mBritish Airways
Wed 1/108:20LHR - PDX
1 stop20h 55mBritish Airways
Deal found 17/12£1,242
Thu 26/1210:29PDX - LHR
3 stops21h 31mScandinavian Airlines
Sun 19/106:40LHR - PDX
3 stops21h 32mScandinavian Airlines
Deal found 18/12£1,279
Mon 30/1214:35PDX - STN
2 stops22h 05mMultiple Airlines
Mon 6/119:10STN - PDX
3 stops34h 59mMultiple Airlines
Deal found 18/12£1,304
Wed 25/1207:00PDX - LHR
1 stop17h 15mIberia
Wed 1/108:20LHR - PDX
1 stop20h 55mIberia
Deal found 18/12£1,327
Sun 22/1210:10PDX - LHR
1 stop16h 00mAir Canada
Fri 10/113:00LHR - PDX
1 stop13h 24mAir Canada
Deal found 18/12£1,426

Find flights from Portland to London within your budget

Customise your flight search to find flights from Portland to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 19 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 4/5

06:15-13:20

1 stop23h 05m

London Heathrow

Thu 22/5

06:00-18:45

2 stops20h 45m

£511

PortlandLondon

PDX - LGW

PDXLGW

Portland

Mon 20/1

17:30-10:35

1 stop33h 05m

London Gatwick

Tue 28/1

12:00-16:35

1 stop36h 35m

£513

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 12/1

15:25-10:10

1 stop34h 45m

London Heathrow

Tue 28/1

13:25-09:34

2 stops28h 09m

£515

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 26/1

06:05-07:05

1 stop17h 00m

London Heathrow

Tue 11/2

06:30-11:25

1 stop12h 55m

£521

PortlandLondon

PDX - LHR

PDXLHR

Portland

Tue 4/3

18:30-12:10

Nonstop9h 40m

London Heathrow

Tue 11/3

14:20-17:35

Nonstop10h 15m

£522

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 17/2

07:35-07:20

1 stop15h 45m

London Heathrow

Fri 7/3

14:20-16:35

Nonstop10h 15m

£526

PortlandLondon

PDX - LGW

PDXLGW

Portland

Fri 2/5

15:20-14:40

1 stop15h 20m

London Gatwick

Mon 19/5

15:40-17:55

1 stop34h 15m

£529

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 26/1

07:05-09:20

2 stops18h 15m

London Heathrow

Tue 11/2

06:40-20:07

2 stops21h 27m

£531

PortlandLondon

PDX - LHR

PDXLHR

Portland

Tue 21/1

10:10-10:10

1 stop16h 00m

London Heathrow

Thu 30/1

15:00-18:43

2 stops35h 43m

£535

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 13/1

12:45-10:35

1 stop13h 50m

London Heathrow

Tue 21/1

06:30-11:25

1 stop12h 55m

£537

Flights are sorted by cheapest return flights first.

Deals found on 18/12

Showing 1-10 of 58 results
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Best time to book a flight from Portland to London

Have a flexible travel schedule? Discover the best time to fly to London from Portland 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.

Travel insights for flights from Portland to London

Get recent, data-driven insights about flights from Portland to London including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Portland to London. Price data was last updated on 13 December 2024.

Booking 23 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Portland to London (average of £112). Flying from Portland to London in July is currently the most expensive (average of £160). 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 PDX to LON?

Find hourly flight availability from Portland to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 December 2024.

When flying from Portland to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 8% versus a flight at midday.

Rainfall in London by month

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

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 19 December 2024.
Read reviews from past customers who have flown Virgin Atlantic, Iberia and Scandinavian Airlines from Portland to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,604 reviews
Check prices

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very Good
8,604 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Alaska Airlines
8.0
Very Good
9,552 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.7
Good
1,285 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.6
Good
1,605 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Portland to London. 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 from for flights from Portland to London?

    For a flight from Portland to London, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city. Portland is the only Portland airport and it handles 2 outbound flights to London per day. 5 airlines have flights to London from Portland on a regular basis.

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

    Cheapflights users have booked flights from Portland to London round-trip from £515. Other airlines that can offer you cheap pricing are Virgin Atlantic, from £521, and British Airways, from £522. Air Canada is 26% cheaper than the average price of flights available within the next 90 days to this destination.

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

    £284 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on WestJet and Finnair, with prices starting from £318 and £330, respectively.

  • What are the most popular routes from Portland to London?

    When deciding which route to take from Portland to London consider Portland - London Heathrow, Portland - London Gatwick or Portland - London City as they are the most popular.

  • What are the most reliable airlines from Portland to London?

    The top 3 most reliable airlines when flying from Portland to London are American Airlines (78%), Alaska Airlines (78%) and Aer Lingus (78%).

  • What are the cheapest flights from Portland to London?

    Looking at all options, your cheapest flight can be booked for £312. While the most popular route (Portland - London Heathrow) can be booked for £469 on average our data indicates £901 when flying from Portland to London.

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

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

  • How can I find direct flights from Portland to London?

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

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

    Yes. Cheapflights offers flight deals from Portland to London 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 Portland to London?

    Currently, January is the cheapest month in which you can book a flight from Portland to London (average of £112). Flying from Portland to London in July is currently the most expensive (average of £160). 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

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Top 5 airlines flying from Portland to London

Discover the top 5 airlines that operate flights from Portland to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 19 December 2024.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£463Average£2,542FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£464Average£657FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£507Average£743FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
IberiaCheapest£549Average£832FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£554Average£825FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

When you search for this flight from Portland to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Portland to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

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

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

Of course! You can now track prices for flights from Portland to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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