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Cheap flights from Portland to the United Kingdom from £153

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 25/7. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LHR
21 Apr — 28 Apr1
1 adult

Cheap flight deals from Portland to United Kingdom

Keep the following information in mind while searching for Portland to United Kingdom flight deals. Data was last updated 16 April 2025.

Round-trip from

£406

One-way from

£153

Popular in

June

Cheapest in

November

Average price

£520

Good round-trip deal

£527 or less

Good one-way deal

£361 or less
Icelandair
  • Icelandair
  • 4/10-14/10
  • 2 total stops
  • 25h 40m total
  • Portland to United Kingdom
Icelandair
  • Icelandair
  • 25/7
  • 1 total stop
  • 12h 25m total
  • Portland to United Kingdom
Highest demand for flights based on searches. 22% potential increase in price (£139 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from Portland to United Kingdom.
Price to beat on a one-way flight from Portland to United Kingdom.

Find flight deals from Portland to United Kingdom

Cheapest flights from Portland to United Kingdom
Explore the most affordable flight options available from Portland to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 April 2025.

Sat 4/1015:20PDX - GLA
1 stop14h 05mIcelandair
Tue 14/1014:20GLA - PDX
1 stop11h 35mIcelandair
Deal found 14/4£406
Fri 26/915:20PDX - LGW
1 stop15h 20mIcelandair
Sat 11/1015:40LGW - PDX
1 stop34h 15mIcelandair
Deal found 15/4£406
Sat 20/915:20PDX - LHR
1 stop12h 35mIcelandair
Tue 30/921:25LHR - PDX
1 stop28h 30mIcelandair
Deal found 15/4£409
Sun 27/405:31PDX - LHR
1 stop16h 54mIberia
Tue 13/515:40LHR - PDX
Nonstop9h 55mIberia
Deal found 15/4£452
Sun 11/515:20PDX - MAN
2 stops21h 05mMultiple Airlines
Sun 18/508:35MAN - PDX
2 stops17h 20mMultiple Airlines
Deal found 15/4£456
Wed 22/1019:25PDX - LHR
Nonstop9h 35mBritish Airways
Tue 28/1008:20LHR - PDX
1 stop17h 18mBritish Airways
Deal found 15/4£461
Sun 27/419:25PDX - LHR
Nonstop9h 35mFinnair
Tue 13/515:40LHR - PDX
Nonstop9h 55mFinnair
Deal found 15/4£461
Sun 28/910:00PDX - LHR
2 stops16h 00mMultiple Airlines
Tue 7/1007:30LHR - PDX
2 stops19h 16mMultiple Airlines
Deal found 15/4£466
Mon 4/819:35PDX - LHR
1 stop27h 50mUnited Airlines
Thu 21/814:10LHR - PDX
1 stop32h 35mUnited Airlines
Deal found 15/4£467
Wed 7/510:00PDX - LHR
2 stops16h 00mAir Canada
Wed 14/514:05LHR - PDX
2 stops27h 25mAir Canada
Deal found 15/4£470
Wed 30/415:10PDX - LHR
1 stop15h 05mDelta
Wed 7/506:30LHR - PDX
1 stop12h 50mDelta
Deal found 16/4£471
Tue 5/813:15PDX - GLA
2 stops21h 35mBritish Airways
Thu 5/220:15GLA - PDX
1 stop28h 20mBritish Airways
Deal found 14/4£475

Cheapflights Fare Finder

Customise your flight search to find flights from Portland to United Kingdom 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 16 April 2025.
Use the filters below to find and compare flights from Portland to the United Kingdom that are best for you.

Fly from

Portland

Fly to

United Kingdom

Route

Depart

Return

Price

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Sat 4/10

15:20-13:25

1 stop14h 05m

Glasgow Intl

Tue 14/10

14:20-17:55

1 stop11h 35m

£406

PortlandLondon

PDX - LGW

PDXLGW

Portland

Fri 26/9

15:20-14:40

1 stop15h 20m

London Gatwick

Sat 11/10

15:40-17:55

1 stop34h 15m

£406

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sat 20/9

15:20-11:55

1 stop12h 35m

London Heathrow

Tue 30/9

21:25-17:55

1 stop28h 30m

£409

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 27/4

05:31-06:25

1 stop16h 54m

London Heathrow

Tue 13/5

15:40-17:35

Nonstop9h 55m

£452

PortlandManchester

PDX - MAN

PDXMAN

Portland

Sun 11/5

15:20-20:25

2 stops21h 05m

Manchester

Sun 18/5

08:35-17:55

2 stops17h 20m

£456

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 27/4

19:25-13:00

Nonstop9h 35m

London Heathrow

Tue 13/5

15:40-17:35

Nonstop9h 55m

£461

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 28/9

10:00-10:00

2 stops16h 00m

London Heathrow

Tue 7/10

07:30-18:46

2 stops19h 16m

£466

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 4/8

19:35-07:25

1 stop27h 50m

London Heathrow

Thu 21/8

14:10-14:45

1 stop32h 35m

£467

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 7/5

10:00-10:00

2 stops16h 00m

London Heathrow

Wed 14/5

14:05-09:30

2 stops27h 25m

£470

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 30/4

15:10-14:15

1 stop15h 05m

London Heathrow

Wed 7/5

06:30-11:20

1 stop12h 50m

£471

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 60 results
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Best time to book a flight from Portland to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom 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.

Cheapflights Insights

Everything you need to know about your flight from Portland to the United Kingdom

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

Currently, January is the cheapest month in which you can book a flight from Portland to United Kingdom (average of £112). Flying from Portland to United Kingdom in August is currently the most expensive (average of £164). 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 GB?

Find hourly flight availability from Portland to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 April 2025.

When flying from Portland to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Portland to United Kingdom

Explore weekly flight availability from Portland to United Kingdom. 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 16 April 2025.

The most flights from PDX to GB0 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 United Kingdom by month

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

In terms of precipitation, rainfall in United Kingdom 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 United Kingdom when rainfall is around 40.0 mm.

Temperature in United Kingdom by month

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

If weather is an important factor for your trip to United Kingdom, 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 United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated 16 April 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Portland to United Kingdom. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very Good

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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 United Kingdom. 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 United Kingdom?

    Portland (PDX), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Portland to United Kingdom.

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

    The cheapet airlines for a one-way flight from Portland to United Kingdom are Icelandair (£153), WestJet (£260), and Air Canada (£299).

  • What are the most popular routes from Portland to United Kingdom?

  • What are the most reliable airlines from Portland to United Kingdom?

    No one likes to see their flight delayed. When booking a flight from Portland to United Kingdom consider choosing American Airlines (72%), Alaska Airlines (72%) or Aer Lingus (72%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portland to United Kingdom?

    Looking for the cheapest flight from Portland to United Kingdom? While on average our users pay £1,417, our data indicates the cheapest price to be £319. The most popular route (Portland - London Heathrow), is priced around £402.

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

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

  • How can I find direct flights from Portland to United Kingdom?

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

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

    Yes. Cheapflights offers flight deals from Portland to United Kingdom 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 United Kingdom?

    Currently, January is the cheapest month in which you can book a flight from Portland to United Kingdom (average of £112). Flying from Portland to United Kingdom in August is currently the most expensive (average of £164). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from Portland to United Kingdom

Discover the top 5 airlines that operate flights from Portland to United Kingdom. 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 16 April 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£395Average£713FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£444Average£2,448FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£445Average£552FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IberiaCheapest£461Average£554FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest£567Average£696FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Portland to United Kingdom?

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portland to United Kingdom.

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Yes! Cheapflights helps users easily find flights from Portland to United Kingdom with no change fees.

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Not ready to book yet? You can track prices for flights from Portland to United Kingdom on Cheapflights with our Price Alert feature and get notified when better prices are available.

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