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Cheap flights from Portland to London from $255

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 5/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
3:30 pm - 2:40 pm
PDX
-
LGW
15h 10m
1 stop
Icelandair Logo
3:40 pm - 5:55 pm
LGW
-
PDX
34h 15m
1 stop
$603Icelandair
Sat, May 2 - Sat, Jun 13
Icelandair Logo
3:30 pm - 11:45 am
PDX
-
LGW
12h 15m
1 stop
Icelandair Logo
1:00 pm - 5:55 pm
LGW
-
PDX
12h 55m
1 stop
$604Icelandair
Sat, May 16 - Sun, Jun 7
Icelandair Logo
3:30 pm - 2:40 pm
PDX
-
LGW
15h 10m
1 stop
Icelandair Logo
3:40 pm - 5:55 pm
LGW
-
PDX
34h 15m
1 stop
$605Icelandair
Thu, May 14 - Tue, May 26
Icelandair Logo
3:30 pm - 2:40 pm
PDX
-
LGW
15h 10m
1 stop
Icelandair Logo
1:00 pm - 5:55 pm
LGW
-
PDX
12h 55m
1 stop
$608Icelandair
Sat, May 16 - Sun, May 31
Icelandair Logo
2:45 pm - 10:55 am
PDX
-
LGW
12h 10m
1 stop
Icelandair Logo
11:55 am - 6:00 pm
LGW
-
PDX
13h 05m
1 stop
$609Icelandair
Sat, Mar 7 - Fri, Mar 13
Icelandair Logo
3:30 pm - 2:40 pm
PDX
-
LGW
15h 10m
1 stop
Icelandair Logo
3:40 pm - 6:00 pm
LGW
-
PDX
34h 20m
1 stop
$622Icelandair
Sat, Apr 18 - Tue, Apr 28
Icelandair Logo
3:45 pm - 10:55 am
PDX
-
LGW
12h 10m
1 stop
Icelandair Logo
11:55 am - 6:00 pm
LGW
-
PDX
13h 05m
1 stop
$623Icelandair
Tue, Mar 10 - Mon, Mar 16
Icelandair Logo
3:45 pm - 10:55 am
PDX
-
LGW
12h 10m
1 stop
Icelandair Logo
11:55 am - 6:00 pm
LGW
-
PDX
13h 05m
1 stop
$626Icelandair
Mon, Mar 9 - Fri, Mar 20
American Airlines Logo
11:40 pm - 7:30 am
PDX
-
LGW
23h 50m
2 stops
American Airlines Logo
11:20 am - 10:48 am
LGW
-
PDX
30h 28m
2 stops
$627American Airlines
Thu, Mar 5 - Thu, Mar 12
SWISS Logo
10:47 am - 5:50 pm
PDX
-
LGW
23h 03m
2 stops
SWISS Logo
6:40 pm - 10:40 pm
LGW
-
PDX
36h 00m
2 stops
$635SWISS
Wed, Feb 4 - Wed, Feb 11

American Airlines flights from Portland to London Gatwick Airport

Our best American Airlines deals on Portland to London Gatwick Airport flight tickets
American Airlines
Mar 5
PDX11:40 pmPortland
23h 50m
2 stops
LGW7:30 amLondon Gatwick
Mar 12
LGW11:20 amLondon Gatwick
30h 28m
2 stops
PDX10:48 amPortland
$627
American Airlines
May 1
PDX11:40 pmPortland
23h 10m
2 stops
LGW6:50 amLondon Gatwick
May 13
LGW2:30 pmLondon Gatwick
30h 28m
2 stops
PDX12:58 pmPortland
$643
American Airlines
Feb 4
PDX6:00 amPortland
19h 00m
2 stops
LGW9:00 amLondon Gatwick
Feb 11
LGW12:30 pmLondon Gatwick
30h 37m
2 stops
PDX11:07 amPortland
$708

British Airways flights from Portland to London Gatwick Airport

Our best British Airways deals on Portland to London Gatwick Airport flight tickets
British Airways
Feb 16
PDX6:40 amPortland
21h 45m
2 stops
LGW12:25 pmLondon Gatwick
Feb 23
LGW4:25 pmLondon Gatwick
34h 51m
2 stops
PDX7:16 pmPortland
$657
British Airways
Apr 20
PDX6:22 amPortland
23h 28m
2 stops
LGW1:50 pmLondon Gatwick
Apr 27
LGW8:10 pmLondon Gatwick
34h 39m
2 stops
PDX10:49 pmPortland
$664
British Airways
Apr 25
PDX1:55 pmPortland
38h 10m
2 stops
LGW12:05 pmLondon Gatwick
May 4
LGW9:05 pmLondon Gatwick
33h 27m
2 stops
PDX10:32 pmPortland
$666

momondo Fare Finder

 
Customize your flight search to find flights from Portland to London Gatwick Airport 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, momondo users made 832,500 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Portland to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandLondon

PDX - LGW

PDXLGW

Portland

Sat 5/2

3:30 pm-2:40 pm

1 stop15h 10m

London Gatwick

Sat 6/13

3:40 pm-5:55 pm

1 stop34h 15m

$603

PortlandLondon

PDX - LGW

PDXLGW

Portland

Sat 5/16

3:30 pm-11:45 am

1 stop12h 15m

London Gatwick

Sun 6/7

1:00 pm-5:55 pm

1 stop12h 55m

$604

PortlandLondon

PDX - LGW

PDXLGW

Portland

Thu 5/14

3:30 pm-2:40 pm

1 stop15h 10m

London Gatwick

Tue 5/26

3:40 pm-5:55 pm

1 stop34h 15m

$605

PortlandLondon

PDX - LGW

PDXLGW

Portland

Sat 5/16

3:30 pm-2:40 pm

1 stop15h 10m

London Gatwick

Sun 5/31

1:00 pm-5:55 pm

1 stop12h 55m

$608

PortlandLondon

PDX - LGW

PDXLGW

Portland

Sat 3/7

2:45 pm-10:55 am

1 stop12h 10m

London Gatwick

Fri 3/13

11:55 am-6:00 pm

1 stop13h 05m

$609

PortlandLondon

PDX - LGW

PDXLGW

Portland

Sat 4/18

3:30 pm-2:40 pm

1 stop15h 10m

London Gatwick

Tue 4/28

3:40 pm-6:00 pm

1 stop34h 20m

$622

PortlandLondon

PDX - LGW

PDXLGW

Portland

Tue 3/10

3:45 pm-10:55 am

1 stop12h 10m

London Gatwick

Mon 3/16

11:55 am-6:00 pm

1 stop13h 05m

$623

PortlandLondon

PDX - LGW

PDXLGW

Portland

Mon 3/9

3:45 pm-10:55 am

1 stop12h 10m

London Gatwick

Fri 3/20

11:55 am-6:00 pm

1 stop13h 05m

$626

PortlandLondon

PDX - LGW

PDXLGW

Portland

Thu 3/5

11:40 pm-7:30 am

2 stops23h 50m

London Gatwick

Thu 3/12

11:20 am-10:48 am

2 stops30h 28m

$627

PortlandLondon

PDX - LGW

PDXLGW

Portland

Wed 2/4

10:47 am-5:50 pm

2 stops23h 03m

London Gatwick

Wed 2/11

6:40 pm-10:40 pm

2 stops36h 00m

$635

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

When to book flights from Portland to London Gatwick Airport

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

Cheap Portland to London Gatwick Airport (PDX to LGW) flight deals and tips

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

Fastest flight time

11h 35m

Direct flights

None
The fastest flight from Portland to London Gatwick Airport takes 11h 35m
There are no direct flights from Portland to London Gatwick Airport. There are no popular flight routes from Portland to London Gatwick Airport.
Search flight deals

  • How far is Portland to London Gatwick by plane?

    Portland and London Gatwick are 4926.9 mi apart from one another. Flights usually cover this in 11h 35m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to London Gatwick Airport.

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

    The travel and health documents you'll need for your trip to London Gatwick Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Gatwick Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Portland to London Gatwick Airport

Compare and see reviews for airlines that fly from Portland to London Gatwick Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $489Free CancellationRating
7.1
602 reviews
Search Icelandair flights

  • How do I get Price Alerts for flights from Portland to London Gatwick Airport?

    Search flight deals from Portland to London Gatwick Airport. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Portland to London Gatwick Airport with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Luton
Milton Keynes
Dover
Slough
Guildford
Wembley
Crawley
Dartford
Hayes
Brentwood
Watford
Cobham
Folkestone
Romford
Stansted
Harrow
Croydon
Richmond

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to London. momondo saves you time and could save you money on your trip.

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

Yes. All flights to London from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Portland to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to London from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London Gatwick Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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