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Cheap flights from Portland to London from $263

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to London departing on 1/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Portland to London

Cheap round-trip flights

These are some of the best round-trip flight deals from Portland to London that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Portland to London.

Cheap last minute flights

Planning a quick getaway from Portland to London? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Portland to London

Find recent round-trip train or bus tickets from Portland to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
10:16 am - 10:35 amPDX-LGW
16h 19m1 stop
9:50 am - 1:07 pmLGW-PDX
35h 17m2 stops
Sun, Feb 23 - Sun, May 4
3:20 pm - 8:20 pmPDX-LHR
21h 00m1 stop
9:25 pm - 5:55 pmLHR-PDX
28h 30m1 stop
$610Icelandair
Find Deal
Sun, May 4 - Wed, May 21
7:25 pm - 1:00 pmPDX-LHR
9h 35mnonstop
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
$655British Airways
Find Deal
Mon, Apr 21 - Wed, May 7
1:42 pm - 10:55 amPDX-LHR
13h 13m1 stop
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
$668British Airways
Find Deal
Mon, Apr 21 - Thu, May 1
7:00 am - 6:25 amPDX-LHR
15h 25m1 stop
6:30 am - 11:30 amLHR-PDX
13h 00m1 stop
$690Delta
Find Deal
Tue, Apr 29 - Wed, May 14
3:37 pm - 3:25 pmPDX-LHR
15h 48m1 stop
2:20 pm - 4:35 pmLHR-PDX
10h 15mnonstop
$695American Airlines
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Sun, Jan 26 - Tue, Feb 11
8:01 am - 6:25 amPDX-LHR
14h 24m1 stop
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
$696Iberia
Find Deal
Mon, Apr 28 - Tue, May 13
8:01 am - 6:25 amPDX-LHR
14h 24m1 stop
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
$697Iberia
Find Deal
Sun, Apr 27 - Wed, May 14
7:00 am - 10:15 amPDX-LHR
19h 15m1 stop
11:30 am - 8:47 pmLHR-PDX
17h 17m2 stops
$698Delta
Find Deal
Tue, Apr 29 - Wed, May 7
3:37 pm - 4:00 pmPDX-LHR
16h 23m1 stop
2:20 pm - 4:35 pmLHR-PDX
10h 15mnonstop
$744American Airlines
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Fri, Jan 10 - Fri, Jan 17
5:04 pm - 12:50 pmPDX-LHR
35h 46m2 stops
Thu, Jan 30
7:35 am - 10:50 amPDX-LHR
19h 15m2 stops
Wed, Jan 22
6:41 am - 6:00 amPDX-LGW
15h 19m1 stop
Fri, Jan 31
3:20 pm - 11:55 amPDX-LHR
12h 35m1 stop
$360Icelandair
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Fri, May 2
3:20 pm - 11:45 amPDX-LGW
12h 25m1 stop
$360Icelandair
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Fri, May 2
7:25 pm - 1:00 pmPDX-LHR
9h 35mnonstop
$415British Airways
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Sun, Mar 30
5:31 am - 6:50 pmPDX-LGW
29h 19m2 stops
$459British Airways
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Tue, Jan 21
2:00 pm - 7:00 pmPDX-LGW
22h 00m2 stops
$520Iberia
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Sat, Mar 29
7:25 pm - 1:00 pmPDX-LHR
9h 35mnonstop
$568Iberia
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Wed, May 14
5:31 am - 6:20 amPDX-LHR
16h 49m1 stop
$7,752American Airlines
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Thu, Jan 16
9:14 pm - 10:35 amPDX-LGW
29h 21m1 stop
12:00 pm - 11:34 pmLGW-PDX
19h 34m1 stop
$1,072
Find Deal
Mon, Dec 23 - Fri, Dec 27
9:14 pm - 10:35 amPDX-LGW
29h 21m1 stop
12:00 pm - 11:34 pmLGW-PDX
19h 34m1 stop
$1,139
Find Deal
Mon, Dec 23 - Sun, Dec 29
2:35 pm - 10:50 amPDX-LHR
12h 15m1 stop
8:40 pm - 4:50 pmLHR-PDX
28h 10m1 stop
$1,849Icelandair
Find Deal
Mon, Dec 23 - Sat, Dec 28
2:35 pm - 7:30 pmPDX-LHR
20h 55m1 stop
8:40 pm - 8:11 pmLHR-PDX
31h 31m2 stops
$1,905Icelandair
Find Deal
Sat, Dec 21 - Sun, Dec 29
1:45 pm - 12:00 pmPDX-LHR
14h 15m1 stop
2:20 pm - 4:35 pmLHR-PDX
10h 15mnonstop
$2,075American Airlines
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Thu, Dec 19 - Fri, Dec 27
1:45 pm - 12:00 pmPDX-LHR
14h 15m1 stop
2:20 pm - 4:35 pmLHR-PDX
10h 15mnonstop
$2,076American Airlines
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Thu, Dec 19 - Fri, Dec 27
12:59 am - 12:05 pmPDX-LHR
27h 06m1 stop
10:05 am - 10:20 pmLHR-PDX
20h 15m1 stop
$2,090British Airways
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Mon, Dec 23 - Tue, Dec 31
6:30 pm - 12:10 pmPDX-LHR
9h 40mnonstop
2:20 pm - 4:35 pmLHR-PDX
10h 15mnonstop
$2,283Iberia
Find Deal
Sun, Dec 22 - Fri, Jan 10
11:59 pm - 10:50 amPDX-LCY
26h 51m2 stops
5:00 pm - 9:50 pmLCY-PDX
36h 50m2 stops
$2,290British Airways
Find Deal
Sun, Dec 22 - Fri, Jan 10
6:30 pm - 12:10 pmPDX-LHR
9h 40mnonstop
3:05 pm - 11:44 pmLHR-PDX
16h 39m1 stop
$2,438Iberia
Find Deal
Sun, Dec 22 - Sun, Dec 29
7:25 pm - 1:00 pmPDX-LHR
9h 35mnonstop
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
$655British Airways
Find Deal
Mon, Apr 21 - Wed, May 7
6:30 pm - 12:10 pmPDX-LHR
9h 40mnonstop
2:20 pm - 5:35 pmLHR-PDX
10h 15mnonstop
$662British Airways
Find Deal
Wed, Feb 12 - Wed, Mar 12
7:30 pm - 12:10 pmPDX-LHR
9h 40mnonstop
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
$664British Airways
Find Deal
Tue, Mar 18 - Tue, Apr 15
7:30 pm - 12:10 pmPDX-LHR
9h 40mnonstop
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
$665Iberia
Find Deal
Tue, Mar 18 - Tue, Apr 15
6:30 pm - 12:10 pmPDX-LHR
9h 40mnonstop
2:20 pm - 4:35 pmLHR-PDX
10h 15mnonstop
$679Finnair
Find Deal
Tue, Jan 14 - Wed, Jan 22
7:25 pm - 1:00 pmPDX-LHR
9h 35mnonstop
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
$682Finnair
Find Deal
Tue, Apr 15 - Tue, Apr 22
6:30 pm - 12:10 pmPDX-LHR
9h 40mnonstop
2:20 pm - 4:35 pmLHR-PDX
10h 15mnonstop
$689American Airlines
Find Deal
Tue, Jan 14 - Tue, Jan 21
7:25 pm - 1:00 pmPDX-LHR
9h 35mnonstop
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
$698Iberia
Find Deal
Sun, May 4 - Wed, May 21
6:30 pm - 12:10 pmPDX-LHR
9h 40mnonstop
2:20 pm - 4:35 pmLHR-PDX
10h 15mnonstop
$787American Airlines
Find Deal
Tue, Jan 7 - Tue, Jan 14
6:30 pm - 12:10 pmPDX-LHR
9h 40mnonstop
2:20 pm - 4:35 pmLHR-PDX
10h 15mnonstop
$889Alaska Airlines
Find Deal
Sun, Jan 26 - Tue, Feb 11

Air Canada flights from Portland to London

Our best Air Canada deals on Portland to London flight tickets
Air Canada
Jan 26
PDX10:10 amPortland
15h 10m
2 stops
LHR9:20 amLondon Heathrow
Feb 11
LHR1:00 pmLondon Heathrow
17h 09m
1 stop
PDX10:09 pmPortland
Air Canada
Jan 26
PDX10:10 amPortland
16h 00m
1 stop
LHR10:10 amLondon Heathrow
Feb 11
LHR1:00 pmLondon Heathrow
17h 09m
1 stop
PDX10:09 pmPortland
Air Canada
Jan 26
PDX10:10 amPortland
16h 00m
1 stop
LHR10:10 amLondon Heathrow
Feb 11
LHR1:00 pmLondon Heathrow
17h 09m
1 stop
PDX10:09 pmPortland

Virgin Atlantic flights from Portland to London

Our best Virgin Atlantic deals on Portland to London flight tickets
Virgin Atlantic
Jan 26
PDX1:25 pmPortland
16h 25m
1 stop
LHR1:50 pmLondon Heathrow
Feb 11
LHR6:30 amLondon Heathrow
12h 55m
1 stop
PDX11:25 amPortland
Virgin Atlantic
Jan 26
PDX6:05 amPortland
17h 00m
1 stop
LHR7:05 amLondon Heathrow
Feb 11
LHR6:30 amLondon Heathrow
12h 55m
1 stop
PDX11:25 amPortland
Virgin Atlantic
Jan 13
PDX6:45 amPortland
17h 10m
1 stop
LHR7:55 amLondon Heathrow
Jan 20
LHR5:50 pmLondon Heathrow
25h 35m
1 stop
PDX11:25 amPortland

See travel insights to London from

How to get the cheapest flight ticket from Portland to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London?

The cheapest month to fly to London from Portland is in November. Flight prices, which tend to average around $693, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from Portland averaging around $712.

What is the cheapest day to depart on your flight to London?

The cheapest day to depart from Portland to London is on a Tuesday. Travelers who choose to depart for London on a Tuesday will often find tickets for as low as $831. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $981. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

What is the cheapest time of day to depart on your flight to London?

Flying to London from Portland in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $812 when looking at flights departing in the afternoon. Flights to London are more costly in the evening, with an average ticket price of $978. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Portland to London flight route?

Fly from Portland to London Heathrow for the best Portland - London flight prices

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

Most flyers found that booking tickets 49 days in advance of their planned departure date is the best time to get cheap flights to London. During this timeframe, flight prices are around $899. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $748.

What cabin class options are available on Portland to London flights?

There are 3 cabin classes available to choose from on Portland to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portland to London flights?

You could potentially save up to 45% on your flight if you consider stops on a Portland to London flight.

How have Portland to London flight prices changed over time?

As of December 2024, prices for Portland to London flights are approximately 26% cheaper when compared to flights at the same time last year.

When to book flights from Portland to London

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to London (PDX to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to London

Best Price Found

$263

Fastest flight time

9h 30m

Direct flights

Every day

Airports in London

5 airports
The best one-way flight to London from Portland in the past 72 hours is $263. The best round-trip flight deal from Portland to London found on momondo in the last 72 hours is $601.
The fastest flight from Portland to London takes 9h 30m
Direct flights go from Portland to London every day.
There are 5 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), London Stansted (STN), London Gatwick (LGW)

  • How far is Portland to London by plane?

    The distance between Portland and London is about 4909.8 mi. Typically, this will take 9h 35m by plane in normal conditions.

  • When did momondo last update prices for flights from Portland Airport to London?

    Prices for flights from Portland Airport to London are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portland Airport to London?

  • How old do you have to be to fly from Portland Airport to London?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to London.

  • What documentation or ID do you need to fly to London?

    The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Portland to London?

  • What is the most popular airline from Portland to London?


Best airlines flying from Portland to London

Compare and see reviews for airlines that fly from Portland to London with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $500Free CancellationRating
7.1
510 reviews
Search Icelandair flights
KLMPriceFrom $576Free CancellationRating
7.8
1,349 reviews
Search KLM flights
Air CanadaPriceFrom $580Free CancellationRating
7.0
8,382 reviews
Search Air Canada flights
LufthansaPriceFrom $592Free CancellationRating
6.8
7,091 reviews
Search Lufthansa flights
FinnairPriceFrom $597Free CancellationRating
7.7
1,285 reviews
Search Finnair flights
IberiaPriceFrom $599Free CancellationRating
7.0
2,656 reviews
Search Iberia flights
DeltaPriceFrom $602Free CancellationRating
8.0
8,604 reviews
Search Delta flights
United AirlinesPriceFrom $624Free CancellationRating
7.4
9,059 reviews
Search United Airlines flights
American AirlinesPriceFrom $629Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $643Free CancellationRating
6.6
6,820 reviews
Search British Airways flights
  • Alaska Airlines Flights From Portland to London

    The lowest priced Alaska Airlines flight from Portland to London from the last 72 hours was $864. Generally, Alaska Airlines has 4 flights on this route every week with an average price of $1,037. Alaska Airlines is rated 8.0/10 by our users.

  • Finnair Flights From Portland to London

    Across 1,285 Finnair reviews on momondo, the average score is 7.7/10. Finnair flies from Portland to London about 1 time each week, with ticket deals ranging from $597 to $788. Price data is based on momondo searches in the last 72 hours.


Why use momondo?

Why should I use momondo to find a flight deal from Portland to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Portland.

Can I find flights from Portland to London with flexible booking policies on momondo?

All flight searches from Portland to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to London?

momondo helps you find the best flight between Portland and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Portland to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London