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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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LHR
26 Feb — 5 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portland to United Kingdom

Enter your travel dates to find the best prices.

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 27 January 2026.

Tue 31/306:40
PDX
-
INV
2 stops23h 45m
British Airways
Thu 9/407:20
INV
-
PDX
1 stop18h 20m
British Airways
Deal found 26/1£363
Tue 10/315:45
PDX
-
GLA
1 stop11h 10m
Icelandair
Fri 20/312:35
GLA
-
PDX
1 stop12h 25m
Icelandair
Deal found 26/1£369
Mon 6/412:04
PDX
-
INV
2 stops25h 31m
British Airways
Tue 21/407:20
INV
-
PDX
1 stop18h 20m
British Airways
Deal found 25/1£370
Thu 2/415:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Fri 10/414:20
GLA
-
PDX
1 stop11h 40m
Icelandair
Deal found 25/1£372
Tue 31/313:05
PDX
-
INV
1 stop15h 40m
KLM
Thu 9/406:25
INV
-
PDX
1 stop12h 45m
KLM
Deal found 26/1£373
Tue 5/506:00
PDX
-
INV
2 stops19h 35m
American Airlines
Wed 13/510:35
INV
-
PDX
2 stops19h 57m
American Airlines
Deal found 26/1£376
Sun 1/313:25
PDX
-
INV
1 stop15h 20m
Delta
Wed 11/313:15
INV
-
PDX
2 stops34h 40m
Delta
Deal found 26/1£382
Sat 25/415:30
PDX
-
EDI
1 stop13h 50m
Icelandair
Sun 10/514:15
EDI
-
PDX
1 stop11h 45m
Icelandair
Deal found 26/1£384
Sat 9/515:30
PDX
-
EDI
1 stop13h 50m
Icelandair
Fri 15/514:15
EDI
-
PDX
1 stop11h 45m
Icelandair
Deal found 24/1£391
Tue 5/511:56
PDX
-
INV
2 stops18h 29m
British Airways
Wed 13/510:35
INV
-
PDX
1 stop15h 05m
British Airways
Deal found 26/1£402
Fri 17/413:05
PDX
-
INV
1 stop25h 25m
KLM
Wed 29/413:15
INV
-
PDX
1 stop29h 55m
KLM
Deal found 26/1£406
Wed 16/915:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Fri 25/914:20
GLA
-
PDX
1 stop11h 35m
Icelandair
Deal found 24/1£408

Find 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 27 January 2026.

Round-trip from

£363

One-way from

£154

Popular in

June

Cheapest in

October

Average price

£527

Good round-trip deal

£1,336 or less

Good one-way deal

£291 or less
British Airways
  • British Airways
  • 31/3-9/4
  • 3 total stops
  • 43h 05m total
  • Portland to United Kingdom
Search Deals
Icelandair
  • Icelandair
  • 10/3
  • 1 total stop
  • 11h 10m total
  • Portland to United Kingdom
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£116 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Portland to United Kingdom.
Search Deals
Price to beat on a one-way flight from Portland to United Kingdom.
Search Deals

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 27 January 2026.
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

Tue 31/3

06:40-14:25

2 stops23h 45m

Inverness

Thu 9/4

07:20-17:40

1 stop18h 20m

£363

PortlandInverness

PDX - INV

PDXINV

Portland

Mon 6/4

12:04-15:00

2 stops18h 56m

Inverness

Thu 16/4

07:20-17:40

1 stop18h 20m

£363

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Thu 2/4

15:30-13:25

1 stop13h 55m

Glasgow Intl

Fri 10/4

14:20-18:00

1 stop11h 40m

£372

PortlandInverness

PDX - INV

PDXINV

Portland

Tue 31/3

13:05-12:45

1 stop15h 40m

Inverness

Thu 9/4

06:25-11:10

1 stop12h 45m

£373

PortlandInverness

PDX - INV

PDXINV

Portland

Tue 31/3

13:05-12:45

1 stop15h 40m

Inverness

Thu 9/4

06:25-11:10

1 stop12h 45m

£373

PortlandInverness

PDX - INV

PDXINV

Portland

Sun 1/3

13:25-12:45

1 stop15h 20m

Inverness

Wed 11/3

13:15-18:15

2 stops36h 00m

£382

PortlandInverness

PDX - INV

PDXINV

Portland

Tue 5/5

11:56-14:25

2 stops18h 29m

Inverness

Wed 13/5

10:35-17:40

1 stop15h 05m

£402

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Mon 2/3

17:45-18:10

1 stop16h 25m

Edinburgh Turnhouse

Sun 8/3

06:20-15:55

1 stop17h 35m

£448

PortlandManchester

PDX - MAN

PDXMAN

Portland

Wed 4/3

15:50-23:20

2 stops23h 30m

Manchester

Tue 10/3

09:25-21:10

2 stops18h 45m

£454

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 23/2

11:35-10:30

1 stop14h 55m

London Heathrow

Fri 6/3

06:30-11:25

1 stop12h 55m

£454

Flights are sorted by cheapest return flights first.

Deals found on 26/1

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, March is the cheapest month in which you can book a flight from Portland to United Kingdom (average of £359). Flying from Portland to United Kingdom in June is currently the most expensive (average of £601). 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 27 January 2026.

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.

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 27 January 2026.
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
7.5
Good
678 reviews
Check prices

Comfort

7.3

Food

6.9

Boarding

7.7

Overall

7.5

Crew

8.2

Entertainment

7.6

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
7.5
Good
678 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Comfort

7.3

Food

6.9

Boarding

7.7

Overall

7.5

Crew

8.2

Entertainment

7.6

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
7.1
Good
603 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Comfort

7.3

Food

6.9

Boarding

7.7

Overall

7.5

Crew

8.2

Entertainment

7.6

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
3,098 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Comfort

7.3

Food

6.9

Boarding

7.7

Overall

7.5

Crew

8.2

Entertainment

7.6

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
7,702 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Comfort

7.3

Food

6.9

Boarding

7.7

Overall

7.5

Crew

8.2

Entertainment

7.6

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 13h 55m. The distance between Portland and United Kingdom is about 4560 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 Icelandair (£165), Virgin Atlantic (£283), and British Airways (£287).

  • 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 £1,586, our data indicates the cheapest price to be £283. The most popular route (Portland - London Heathrow), is priced around £368.

  • 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, March is the cheapest month in which you can book a flight from Portland to United Kingdom (average of £359). Flying from Portland to United Kingdom in June is currently the most expensive (average of £601). 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 3 airlines flying from Portland to United Kingdom

Discover the top 3 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 27 January 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£376Average£529FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£424Average£509FlexibilityNo cancel feeOn-time77%
Search Iberia flights
IcelandairCheapest£431Average£439FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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How does Cheapflights help users find 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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