$344 Cheap Flights from Portland (PWM) to London (LGW)

View $344 flight on Sat, Oct 4, 2025Opens in a new window

Popular airlines from Portland Intl. Jetport Airport (PWM) to Gatwick Airport (LGW)

Cheap Flights from Portland to London (PWM-LGW)

Prices were available within the past 7 days and start at $344 for one-way flights and $683 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Sat, Oct 4 - Fri, Oct 10
PWM
Portland
LGW
London
$683 Roundtrip, found 4 days ago
$683
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Sat, Oct 4 from Portland to London, returning Fri, Oct 10, priced at $683 found 4 days ago
JetBlue Airways
Sat, Oct 4 - Fri, Oct 10
PWM
Portland
LGW
London
$691 Roundtrip, found 4 days ago
$691
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Sat, Oct 4 from Portland to London, returning Fri, Oct 10, priced at $691 found 4 days ago
JetBlue Airways
Sat, Oct 4 - Fri, Oct 10
PWM
Portland
LGW
London
$696 Roundtrip, found 4 days ago
$696
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Sat, Oct 4 from Portland to London, returning Fri, Oct 10, priced at $696 found 4 days ago
JetBlue Airways
Sat, Oct 4 - Fri, Oct 10
PWM
Portland
LGW
London
$707 Roundtrip, found 4 days ago
$707
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Sat, Oct 4 from Portland to London, returning Fri, Oct 10, priced at $707 found 4 days ago
JetBlue Airways
Sat, Oct 4 - Fri, Oct 10
PWM
Portland
LGW
London
$715 Roundtrip, found 4 days ago
$715
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Sat, Oct 4 from Portland to London, returning Fri, Oct 10, priced at $715 found 4 days ago
JetBlue Airways
Sat, Oct 4 - Fri, Oct 10
PWM
Portland
LGW
London
$720 Roundtrip, found 4 days ago
$720
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Sat, Oct 4 from Portland to London, returning Fri, Oct 10, priced at $720 found 4 days ago
Turkish Airlines
Sat, Oct 4 - Fri, Oct 10
PWM
Portland
LGW
London
$983 Roundtrip, found 4 days ago
$983
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Sat, Oct 4 from Portland to London, returning Fri, Oct 10, priced at $983 found 4 days ago
Southwest Airlines
Sat, Nov 1 - Fri, Nov 7
PWM
Portland
LGW
London
$1,097 Roundtrip, found 5 days ago
$1,097
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Sat, Nov 1 from Portland to London, returning Fri, Nov 7, priced at $1,097 found 5 days ago
TAP Portugal
Sat, Oct 4 - Fri, Oct 10
PWM
Portland
LGW
London
$1,111 Roundtrip, found 4 days ago
$1,111
Roundtrip
found 4 days ago
Select TAP Portugal flight, departing Sat, Oct 4 from Portland to London, returning Fri, Oct 10, priced at $1,111 found 4 days ago
American Airlines
Tue, Oct 21 - Wed, Oct 22
PWM
Portland
LGW
London
$1,662 Roundtrip, found 14 hours ago
$1,662
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Tue, Oct 21 from Portland to London, returning Wed, Oct 22, priced at $1,662 found 14 hours ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Heathrow LHR. Cheapest option available. Average driving time to city center is 28 minutes. Flights from $1,028
LHR
Heathrow
Cheapest
Average driving time to city center28 min
Flights from $1,028
Select flight to London City LCY. Closest option available. Average driving time to city center is 21 minutes. Flights from $1,839
LCY
London City
Closest
Average driving time to city center21 min
Flights from $1,839
Flights from Portland (PWM) to London (LGW)
Origin airport
Portland Intl. Jetport
Destination airport
Gatwick
Roundtrip price
$682
Distance
3194 mi

Portland to London Flights

The cheapest times to fly from Portland to London

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to London are during the month of October. You can find some of the cheapest flights from Portland to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to London

Sunday is one of the best days to book for cheap flights from Portland to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Portland to London

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $344 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Portland Intl. Jetport Airport (PWM) to Gatwick Airport (LGW) cost?
Get a cheap one-way flight from $344 or cheap return flight from $683 from Portland Intl. Jetport Airport (PWM) to Gatwick Airport (LGW) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Portland Intl. Jetport Airport (PWM) to Gatwick Airport (LGW)?
The cheapest month to fly from PWM to LGW is October, when there's less demand. Off-peak months are usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Portland Intl. Jetport Airport (PWM) to Gatwick Airport (LGW)?
To find the cheapest airline flying from PWM to LGW, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Portland Intl. Jetport Airport (PWM) to Gatwick Airport (LGW)?
There are no daily nonstop flights from Portland Intl. Jetport Airport (PWM) to Gatwick Airport (LGW). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from PWM to LGW?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Jetport Airport (PWM) to Gatwick Airport (LGW)?
Choose a flight from Portland Intl. Jetport Airport (PWM) to Gatwick Airport (LGW) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Portland Intl. Jetport Airport (PWM) to Gatwick Airport (LGW) last-minute?
Waiting until right before your break to book your flight from PWM to LGW generally means paying more. While it's possible to find some last-minute deals, they're not always guaranteed. Be flexible with your itinerary for a better chance of snagging a bargain.
Is it cheaper to book a PWM to LGW flight and hotel package?
You'll generally save money by booking a PWM to LGW flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your preferred accommodations and flights, consider adding extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Portland Intl. Jetport Airport (PWM) to Gatwick Airport (LGW)?
In most instances, you're able to reschedule or cancel your PWM to LGW flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want further information, go to our Customer Service portal.

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*Available to One Key members.