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Cheap flights from Portland to the United Kingdom from £154

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LHR
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 17 September 2025.

Round-trip from

£371

One-way from

£154

Popular in

June

Cheapest in

October

Average price

£533

Good round-trip deal

£400 or less

Good one-way deal

£374 or less
Delta
  • Delta
  • 2/11-14/11
  • 3 total stops
  • 44h 43m total
  • Portland to United Kingdom
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WestJet
  • WestJet
  • 3/10
  • 1 total stop
  • 12h 20m total
  • Portland to United Kingdom
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£128 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Portland to United Kingdom.
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Price to beat on a one-way flight from Portland to United Kingdom.
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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 17 September 2025.

Sun 2/1113:25PDX - INV
1 stop15h 20mDelta
Fri 14/1113:15INV - PDX
2 stops29h 23mDelta
Deal found 15/9£371
Wed 22/1015:20PDX - EDI
2 stops23h 50mMultiple Airlines
Wed 29/1007:25EDI - PDX
2 stops17h 35mMultiple Airlines
Deal found 14/9£386
Sun 2/1117:45PDX - INV
1 stop17h 15mMultiple Airlines
Fri 14/1111:25INV - PDX
2 stops19h 59mMultiple Airlines
Deal found 16/9£389
Wed 22/1015:20PDX - GLA
1 stop14h 05mIcelandair
Wed 29/1012:35GLA - PDX
1 stop12h 25mIcelandair
Deal found 15/9£396
Wed 22/1005:00PDX - LHR
1 stop23h 20mUnited Airlines
Wed 29/1018:00LHR - PDX
2 stops35h 10mUnited Airlines
Deal found 15/9£400
Fri 17/1006:15PDX - LTN
3 stops23h 20mMultiple Airlines
Thu 23/1021:10LTN - PDX
2 stops25h 36mMultiple Airlines
Deal found 16/9£400
Sat 1/1119:00PDX - LHR
1 stop33h 50mAir Canada
Thu 20/1114:30LHR - PDX
1 stop32h 15mAir Canada
Deal found 15/9£400
Fri 17/1006:15PDX - STN
3 stops24h 05mMultiple Airlines
Thu 23/1022:55STN - PDX
2 stops23h 51mMultiple Airlines
Deal found 16/9£400
Wed 19/1115:15PDX - LHR
1 stop12h 35mAir Canada
Thu 4/1214:30LHR - PDX
1 stop26h 45mAir Canada
Deal found 16/9£401
Mon 6/1019:25PDX - LHR
Nonstop9h 35mAmerican Airlines
Wed 22/1015:40LHR - PDX
Nonstop9h 55mAmerican Airlines
Deal found 15/9£402
Mon 17/1114:45PDX - LGW
1 stop12h 10mIcelandair
Mon 1/1211:55LGW - PDX
1 stop13h 05mIcelandair
Deal found 16/9£402
Fri 17/1015:25PDX - LHR
1 stop13h 55mLufthansa
Sun 19/1006:30LHR - PDX
2 stops20h 16mLufthansa
Deal found 15/9£403

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 17 September 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

PortlandInverness

PDX - INV

PDXINV

Portland

Sun 2/11

13:25-12:45

1 stop15h 20m

Inverness

Fri 14/11

13:15-10:38

2 stops29h 23m

£371

PortlandInverness

PDX - INV

PDXINV

Portland

Sun 2/11

17:45-19:00

1 stop17h 15m

Inverness

Fri 14/11

11:25-23:24

2 stops19h 59m

£389

PortlandLondon

PDX - LHR

PDXLHR

Portland

Tue 14/10

15:50-11:10

2 stops35h 20m

London Heathrow

Tue 4/11

14:30-14:45

1 stop32h 15m

£400

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 5/10

13:40-14:15

1 stop16h 35m

London Heathrow

Tue 14/10

19:15-11:20

1 stop24h 05m

£400

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 6/10

15:50-11:10

2 stops35h 20m

London Heathrow

Wed 22/10

14:10-09:20

1 stop27h 10m

£400

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 8/10

05:30-11:10

2 stops21h 40m

London Heathrow

Wed 22/10

14:10-23:01

1 stop16h 51m

£404

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 9/2

06:15-07:05

1 stop16h 50m

London Heathrow

Wed 18/2

06:30-11:25

1 stop12h 55m

£405

PortlandLondon

PDX - LHR

PDXLHR

Portland

Thu 20/11

14:45-19:30

1 stop20h 45m

London Heathrow

Thu 4/12

20:35-17:00

1 stop28h 25m

£405

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 6/10

11:10-14:15

1 stop19h 05m

London Heathrow

Wed 22/10

06:15-16:45

2 stops18h 30m

£406

PortlandLondon

PDX - STN

PDXSTN

Portland

Tue 14/10

09:55-14:20

2 stops20h 25m

London Stansted

Tue 21/10

22:35-18:46

2 stops28h 11m

£407

Flights are sorted by cheapest return flights first.

Deals found on 15/9

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 17 September 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 17 September 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).

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 17 September 2025.
Get a feel of what it's like to fly with Virgin Atlantic, Icelandair, andIberia from Portland to the United Kingdom by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.4
Good
664 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Icelandair
7.0
Good
544 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Iberia
7.0
Good
2,924 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,363 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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.

  • How long is the flight from Portland to United Kingdom?

    Departing from Portland to United Kingdom will take you 15h 20m. The distance between Portland and United Kingdom is about 4485 mi. This flight may include one or multiple stops.

  • 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 WestJet (£156), Scandinavian Airlines (£263), and Icelandair (£268).

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

    The most popular flight routes from Portland to United Kingdom are Portland - London Heathrow, Portland - London Gatwick and Portland - London City.

  • 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 (77%), Alaska Airlines (77%) or Aer Lingus (77%) 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 £1,343, our data indicates the cheapest price to be £374. The most popular route (Portland - London Heathrow), is priced around £345.

  • 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

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Top 4 airlines flying from Portland to United Kingdom

Discover the top 4 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 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£377Average£530FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£427Average£697FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£432Average£441FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£447Average£537FlexibilityNo cancel feeOn-time77%
Search Iberia flights

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