PWM - LON
$320 Find Cheap Flights from Portland to London - Compare and Save
This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to London departing on 10/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
Everything you should know
Cheapest round-trip
$734
Typical prices: $746-$1,110
United Airlines
Fri 11/16Sun 11/18
PWM - LHR • 2 stops
Cheapest one-way
$320
Typical prices: $359-$579
JetBlue
Tue 10/23
PWM - LHR • 1 stop
Flight Deals
Cheap Flights from Portland to London (PWM-LON)
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.
Recent round-trip flight deals from Portland to London
Mon, Nov 16 - Wed, Nov 18
5:35 am - 10:05 amPWM Portland-LHR London Heathrow
23h 30m2 stops Newark Brussels Bruxelles-National
9:00 am - 11:21 pmLHR London Heathrow-PWM Portland
43h 21m2 stops Halifax Intl Newark
$734United Airlines
Mon, Nov 16 - Wed, Nov 18
2:05 pm - 10:50 amPWM Portland-LHR London Heathrow
15h 45m1 stop Washington, D.C. Dulles Intl
9:00 am - 11:21 pmLHR London Heathrow-PWM Portland
19h 21m2 stops Zurich Newark
$735United Airlines
Mon, Nov 9 - Thu, Nov 12
8:49 am - 7:10 amPWM Portland-LHR London Heathrow
41h 21m2 stops Newark Montreal Pierre Elliott Trudeau Intl
6:50 am - 11:21 pmLHR London Heathrow-PWM Portland
21h 31m2 stops Brussels Bruxelles-National Newark
$739United Airlines
Sun, Nov 1 - Wed, Nov 4
5:08 pm - 7:55 amPWM Portland-LHR London Heathrow
33h 47m1 stop Chicago O'Hare Intl
6:50 am - 11:21 pmLHR London Heathrow-PWM Portland
21h 31m2 stops Brussels Bruxelles-National Newark
$741United Airlines
Wed, Nov 11 - Sat, Nov 14
3:40 pm - 7:10 amPWM Portland-LHR London Heathrow
34h 30m2 stops Newark Montreal Pierre Elliott Trudeau Intl
6:50 am - 7:02 pmLHR London Heathrow-PWM Portland
17h 12m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl
$745United Airlines
Mon, Nov 16 - Wed, Nov 18
3:41 pm - 11:15 amPWM Portland-LHR London Heathrow
14h 34m2 stops Newark Zurich
8:00 am - 7:02 pmLHR London Heathrow-PWM Portland
16h 02m2 stops Newark Washington, D.C. Dulles Intl
$762United Airlines
Wed, Oct 21 - Sat, Nov 7
6:00 am - 8:45 pmPWM Portland-LHR London Heathrow
9h 45m1 stop New York John F Kennedy Intl
12:20 pm - 11:43 pmLHR London Heathrow-PWM Portland
16h 23m1 stop New York John F Kennedy Intl
$848JetBlue
Mon, Nov 16 - Mon, Nov 23
4:03 pm - 10:30 amPWM Portland-LHR London Heathrow
13h 27m1 stop New York John F Kennedy Intl
8:40 am - 12:19 amLHR London Heathrow-PWM Portland
20h 39m2 stops Amsterdam Schiphol New York John F Kennedy Intl
$854KLM
Wed, Oct 21 - Sat, Nov 7
6:00 am - 6:30 amPWM Portland-LHR London Heathrow
19h 30m2 stops Newark Montreal Pierre Elliott Trudeau Intl
12:20 pm - 11:43 pmLHR London Heathrow-PWM Portland
16h 23m1 stop New York John F Kennedy Intl
$855Multiple Airlines
Wed, Nov 11 - Sun, Nov 15
5:50 am - 6:30 amPWM Portland-LHR London Heathrow
19h 40m2 stops Newark Toronto Pearson Intl
12:20 pm - 11:43 pmLHR London Heathrow-PWM Portland
16h 23m1 stop New York John F Kennedy Intl
$860Multiple Airlines
Recent one-way flight deals from Portland to London
Fri, Oct 23
6:00 am - 8:45 pmPWM Portland-LHR London Heathrow
9h 45m1 stop New York John F Kennedy Intl
$320JetBlue
Fri, Oct 23
6:00 am - 5:55 amPWM Portland-LHR London Heathrow
18h 55m2 stops Chicago O'Hare Intl Newark
$329United Airlines
Fri, Oct 23
8:03 am - 6:30 amPWM Portland-LHR London Heathrow
17h 27m3 stops Newark Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
$415Air Canada
Recent last minute flight deals from Portland to London
Tue, Oct 6 - Tue, Oct 20
12:42 pm - 7:10 amPWM Portland-LHR London Heathrow
13h 28m1 stop Detroit Metropolitan Wayne County
11:45 am - 12:10 amLHR London Heathrow-PWM Portland
17h 25m2 stops Amsterdam Schiphol New York John F Kennedy Intl
$862KLM
Wed, Oct 7 - Wed, Oct 21
6:00 am - 8:35 amPWM Portland-LHR London Heathrow
21h 35m2 stops Newark Ottawa
1:50 pm - 11:28 pmLHR London Heathrow-PWM Portland
14h 38m2 stops Zurich Newark
$870United Airlines
Tue, Oct 6 - Tue, Oct 20
4:47 pm - 1:45 pmPWM Portland-LHR London Heathrow
15h 58m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle
9:55 am - 12:10 amLHR London Heathrow-PWM Portland
19h 15m2 stops Amsterdam Schiphol New York John F Kennedy Intl
$876Delta
Tue, Oct 6 - Tue, Oct 20
2:09 pm - 7:15 amPWM Portland-LHR London Heathrow
12h 06m1 stop Atlanta Hartsfield-Jackson
11:15 am - 11:35 pmLHR London Heathrow-PWM Portland
17h 20m1 stop Atlanta Hartsfield-Jackson
$879Virgin Atlantic
Sun, Oct 4 - Tue, Oct 20
6:00 am - 6:45 amPWM Portland-LHR London Heathrow
19h 45m1 stop Chicago O'Hare Intl
7:30 am - 8:22 pmLHR London Heathrow-PWM Portland
17h 52m2 stops Frankfurt am Main Newark
$883United Airlines
Sun, Oct 4 - Tue, Oct 20
6:00 am - 8:40 pmPWM Portland-LHR London Heathrow
9h 40m1 stop Newark
11:05 am - 9:54 pmLHR London Heathrow-PWM Portland
15h 49m1 stop Chicago O'Hare Intl
$891United Airlines
Mon, Oct 5 - Tue, Oct 20
6:00 am - 6:30 amPWM Portland-LHR London Heathrow
19h 30m2 stops Newark Ottawa
9:30 am - 9:08 amLHR London Heathrow-PWM Portland
28h 38m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$894Air Canada
Sun, Oct 4 - Fri, Oct 23
6:00 am - 6:30 amPWM Portland-LHR London Heathrow
19h 30m2 stops Newark Montreal Pierre Elliott Trudeau Intl
9:30 am - 1:51 pmLHR London Heathrow-PWM Portland
33h 21m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$898Air Canada
Mon, Oct 5 - Mon, Oct 19
6:00 am - 6:30 amPWM Portland-LHR London Heathrow
19h 30m2 stops Newark Ottawa
8:30 am - 9:08 amLHR London Heathrow-PWM Portland
29h 38m2 stops Toronto Pearson Intl Newark
$899Air Canada
Sun, Oct 4 - Thu, Oct 22
6:00 am - 9:20 pmPWM Portland-LHR London Heathrow
10h 20m1 stop Newark
9:30 am - 11:28 pmLHR London Heathrow-PWM Portland
18h 58m2 stops Ottawa Newark
$901United Airlines
Booking Insights
Price, demand and travel trends for Portland to London flights
Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.
Prices
Airlines
Layovers
How much is a round-trip flight from Portland to London?
This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Portland to London departing in november.What is the cheapest Portland to London flight route?
KAYAK tracks online flight deals over the last 12 months and analyzes pricing trends to identify the best available fares.Portland (PWM) to London City Airport (LCY) is the cheapest Portland to London route, averaging $664 round-trip. Other Portland to London routes average $867, based on KAYAK data over the past 12 months.
What's the cheapest day of the week to fly from Portland to London?
Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Portland to London. It’s 9% cheaper than the average day, while Friday is the most expensive, with prices 35% higher.
Round-trip flights from Portland to London typically range from $746 to $1,110. The lowest price found in the past 5 days was $734, on United Airlines.
What’s the most popular layover airport when flying from Portland to London?
KAYAK data for 1-stop round-trips over the past 3 months. Only counts itineraries with the same layover on both legs.Newark (EWR) is the most popular layover for the Portland to London route. 49% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via EWR.
What is the cheapest layover airport when flying from Portland to London?
Flights via Newark (EWR) offer the most affordable fares, with an average round-trip price of $952. Based on KAYAK data over the past 3 months.
Key details for Portland to London flights
Low season | February |
|---|---|
High season | May |
Cheapest flight | $320 |
When to book flights from Portland to London
Are your dates flexible? Find out the best times to travel from Portland to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.
Your Portland to London flight questions, answered
Find helpful answers about this route, including flight times, airports, airlines and booking tips.
Your guide to booking Portland to London flights
Get tips on when to book, when to fly and what to know before your trip.More options for your flight from Portland to London
Complete your trip to London with a hotel stay or car rental
Information on your arrival and departure airports
Cabin class types available on flights from Portland to London
Cabin classes available on flights from Portland to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
Find direct flights to and from Portland and London
Flights from domestic origins to London
More flights to London. Prices are the lowest found on KAYAK in the last 7 days. Price and availability is not guaranteed.
Choose which airport to fly into in London
Portland to London Gatwick Airportfrom $874
Portland to London Heathrow Airportfrom $735
Flights to other popular destinations
The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.