PWM - LHR

$330 Find Cheap Flights from Portland to London Heathrow Airport

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 10/5. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to London, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$814
United Airlines
Thu 10/15Fri 10/16
PWM - LHR • 1 stop
Cheapest one-way
$330
American Airlines
Mon 10/5
PWM - LHR • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Portland and London. You'll need at least 1 connection.
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Top layover airports
Cheapest • Avg $853 (round-trip)
Shortest trip • 10h 07m (one-way)
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to London (PWM-LHR)

 
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

Thu, Oct 15 - Fri, Oct 16
United Airlines Logo
6:00 am - 9:20 pm
PWM
-
LHR
10h 20m
1 stop
United Airlines Logo
1:50 pm - 11:28 pm
LHR
-
PWM
14h 38m
2 stops
$814United Airlines
Mon, Aug 3 - Wed, Aug 26
JetBlue Logo
6:00 am - 8:45 pm
PWM
-
LHR
9h 45m
1 stop
JetBlue Logo
11:55 am - 12:14 am
LHR
-
PWM
17h 19m
1 stop
$826JetBlue
Fri, Aug 7 - Fri, Aug 21
JetBlue Logo
6:00 am - 8:45 pm
PWM
-
LHR
9h 45m
1 stop
JetBlue Logo
8:15 am - 12:14 am
LHR
-
PWM
20h 59m
1 stop
$855JetBlue
Sat, Nov 21 - Tue, Nov 24
Brussels Airlines Logo
4:48 pm - 7:55 am
PWM
-
LHR
34h 07m
1 stop
Brussels Airlines Logo
6:50 am - 4:09 pm
LHR
-
PWM
14h 19m
2 stops
$868Brussels Airlines
Thu, Aug 20 - Fri, Sep 11
Scandinavian Airlines Logo
6:00 am - 9:35 am
PWM
-
LHR
22h 35m
2 stops
Scandinavian Airlines Logo
7:05 am - 11:59 pm
LHR
-
PWM
21h 54m
2 stops
$869Scandinavian Airlines
Thu, Oct 1 - Thu, Oct 15
Scandinavian Airlines Logo
2:35 pm - 4:00 pm
PWM
-
LHR
20h 25m
2 stops
Scandinavian Airlines Logo
6:40 am - 11:49 pm
LHR
-
PWM
22h 09m
2 stops
$880Scandinavian Airlines
Mon, Oct 5 - Thu, Oct 15
Scandinavian Airlines Logo
2:35 pm - 4:00 pm
PWM
-
LHR
20h 25m
2 stops
Scandinavian Airlines Logo
6:40 am - 11:49 pm
LHR
-
PWM
22h 09m
2 stops
$883Scandinavian Airlines
Tue, Nov 10 - Tue, Nov 17
American Airlines Logo
12:32 pm - 6:35 am
PWM
-
LHR
13h 03m
1 stop
American Airlines Logo
7:45 am - 6:13 pm
LHR
-
PWM
15h 28m
2 stops
$884American Airlines
Tue, Nov 10 - Tue, Nov 24
United Airlines Logo
5:06 pm - 10:25 am
PWM
-
LHR
12h 19m
1 stop
United Airlines Logo
6:50 am - 4:09 pm
LHR
-
PWM
14h 19m
2 stops
$887United Airlines
Tue, Nov 10 - Tue, Nov 24
United Airlines Logo
5:06 pm - 10:25 am
PWM
-
LHR
12h 19m
1 stop
United Airlines Logo
6:50 am - 4:09 pm
LHR
-
PWM
14h 19m
2 stops
$888United Airlines
Booking Insights

KAYAK's insights & trends for Portland to London flights

Get data-powered insights and trends into flights from Portland to London to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Portland to London Heathrow Airport?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Portland to London Heathrow Airport were found on United Airlines ($814) and JetBlue ($826).

Good to know

Cheapest flight$330
Flight from Portland to London Heathrow Airport

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.

FAQs for booking Portland to London Heathrow Airport flights

  • What is the cheapest flight from Portland to London Heathrow Airport?

    In the last 5 days, the lowest price for a flight from Portland to London Heathrow Airport was $330 for a one-way ticket and $814 for a round-trip.

  • Do I need a passport to fly between Portland and London Heathrow Airport?

    Yes

  • Which airports will I be using when flying from Portland to London Heathrow Airport?

    When flying out of Portland you will be using Portland. You will be landing at London Heathrow Airport, also known as London Heathrow.

  • Which aircraft models fly most regularly from Portland to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Portland to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Portland with another airline. Booking your flights between Portland and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Portland to London

Information on your arrival and departure airports