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Cheap flights from London Heathrow Airport to Portland from $370

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Portland departing on 6/5. 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 London Heathrow Airport to Portland

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from London Heathrow Airport to Portland.
Icelandair Logo
9:25 pm - 5:55 pmLHR-PDX
28h 30m1 stop
Icelandair Logo
3:20 pm - 8:20 pmPDX-LHR
21h 00m1 stop
$623Icelandair
Find Deal
Tue, May 6 - Sun, May 11
Icelandair Logo
1:05 pm - 5:55 pmLHR-PDX
12h 50m1 stop
Icelandair Logo
3:20 pm - 11:55 amPDX-LHR
12h 35m1 stop
$631Icelandair
Find Deal
Fri, Sep 5 - Thu, Sep 18
Icelandair Logo
1:05 pm - 5:55 pmLHR-PDX
12h 50m1 stop
Icelandair Logo
3:20 pm - 11:55 amPDX-LHR
12h 35m1 stop
$633Icelandair
Find Deal
Fri, Sep 5 - Thu, Sep 18
United Airlines Logo
6:30 am - 6:45 pmLHR-PDX
20h 15m2 stops
United Airlines Logo
1:45 pm - 2:10 pmPDX-LHR
16h 25m1 stop
$695United Airlines
Find Deal
Fri, May 9 - Wed, May 14
United Airlines Logo
6:30 am - 2:40 pmLHR-PDX
16h 10m2 stops
United Airlines Logo
10:21 am - 10:40 amPDX-LHR
16h 19m2 stops
$696United Airlines
Find Deal
Wed, May 7 - Sun, May 11
British Airways Logo
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
British Airways Logo
7:25 pm - 1:00 pmPDX-LHR
9h 35mnonstop
$728British Airways
Find Deal
Mon, Sep 15 - Mon, Sep 29
British Airways Logo
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
British Airways Logo
1:15 pm - 10:55 amPDX-LHR
13h 40m1 stop
$730British Airways
Find Deal
Mon, Sep 15 - Mon, Sep 29
Iberia Logo
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
Iberia Logo
12:30 pm - 4:05 pmPDX-LHR
19h 35m1 stop
$770Iberia
Find Deal
Fri, Sep 5 - Thu, Sep 18
American Airlines Logo
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
American Airlines Logo
11:55 pm - 7:20 amPDX-LHR
23h 25m1 stop
$777American Airlines
Find Deal
Wed, May 7 - Sun, May 11
American Airlines Logo
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
American Airlines Logo
7:25 pm - 1:00 pmPDX-LHR
9h 35mnonstop
$813American Airlines
Find Deal
Wed, May 7 - Sun, May 11

Icelandair flights from London Heathrow Airport to Portland

Our best Icelandair deals on London Heathrow Airport to Portland flight tickets
Icelandair
May 6
LHR9:25 pmLondon Heathrow
28h 30m
1 stop
PDX5:55 pmPortland
May 11
PDX3:20 pmPortland
21h 00m
1 stop
LHR8:20 pmLondon Heathrow
Icelandair
Sep 5
LHR1:05 pmLondon Heathrow
12h 50m
1 stop
PDX5:55 pmPortland
Sep 18
PDX3:20 pmPortland
12h 35m
1 stop
LHR11:55 amLondon Heathrow
Icelandair
Sep 5
LHR1:05 pmLondon Heathrow
12h 50m
1 stop
PDX5:55 pmPortland
Sep 18
PDX3:20 pmPortland
12h 35m
1 stop
LHR11:55 amLondon Heathrow

Air Canada flights from London Heathrow Airport to Portland

Our best Air Canada deals on London Heathrow Airport to Portland flight tickets
Air Canada
May 8
LHR8:30 amLondon Heathrow
18h 15m
2 stops
PDX6:45 pmPortland
May 12
PDX10:00 amPortland
16h 00m
2 stops
LHR10:00 amLondon Heathrow
Air Canada
Sep 15
LHR2:10 pmLondon Heathrow
27h 11m
1 stop
PDX9:21 amPortland
Sep 29
PDX7:40 pmPortland
17h 20m
2 stops
LHR9:00 pmLondon Heathrow
Air Canada
May 5
LHR9:30 amLondon Heathrow
32h 00m
2 stops
PDX9:30 amPortland
May 19
PDX7:40 pmPortland
32h 10m
2 stops
LHR11:50 amLondon Heathrow

See travel insights to Portland from

How to get the cheapest flight ticket from London Heathrow Airport to Portland

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 Portland?

The cheapest month to fly to Portland from London Heathrow Airport is in November. Flight prices, which tend to average around $786, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in November, then you should wait until January to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of $794.

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

The cheapest day to depart on your flight to Portland is on a Friday when prices can be found for as low as $949. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Saturday, with ticket prices averaging around $1,278.

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

The cheapest time of day to fly to Portland is in the afternoon when flights can be purchased for as low as $1,068. In the morning is when there is more demand to fly to Portland, so prices are often more expensive at around $1,188 per ticket.

What is the cheapest London Heathrow to Portland flight route?

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

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

You are more likely to see cheaper flights to Portland from London Heathrow Airport when booking 21 weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $910 when searching 21 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from London Heathrow Airport for as low as $832 on momondo.

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

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

How have London Heathrow Airport to Portland flight prices changed over time?

As of April 2025, prices for London Heathrow Airport to Portland flights are approximately 9% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Portland

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

Cheap London Heathrow Airport to Portland (LHR to PDX) flight deals and tips

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

Best Price Found

$370

Fastest flight time

9h 55m

Direct flights

Every day

Airports in Portland

1 airport
The best one-way flight to Portland from London Heathrow Airport in the past 72 hours is $370. The best round-trip flight deal from London Heathrow Airport to Portland found on momondo in the last 72 hours is $623.
The fastest flight from London Heathrow Airport to Portland takes 9h 55m
Direct flights go from London Heathrow Airport to Portland every day.
There is 1 airport near Portland: Portland (PDX)

  • How far is London Heathrow to Portland by plane?

    A flight from London Heathrow to Portland will travel around 4902.4 mi. Flights usually cover this in 9h 55m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from London Heathrow Airport to Portland Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Portland Airport.

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

    The required travel and health documents for your Portland Airport 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 Portland Airport. 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 London Heathrow Airport to Portland?

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


Best airlines flying from London Heathrow Airport to Portland

Compare and see reviews for airlines that fly from London Heathrow Airport to Portland with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $701Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
British AirwaysPriceFrom $733Free CancellationRating
6.6
6,799 reviews
Search British Airways flights
IberiaPriceFrom $801Free CancellationRating
7.0
2,684 reviews
Search Iberia flights
American AirlinesPriceFrom $818Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • American Airlines Flights From London Heathrow Airport to Portland

    American Airlines flight deals from London Heathrow Airport to Portland start from $818 round-trip. Over the 7 American Airlines flights for this route in a normal week, average airfare is usually $1,067 round-trip - but some users have found much cheaper deals with momondo.

  • Iberia Flights From London Heathrow Airport to Portland

    The best Iberia deal for London Heathrow Airport to Portland flight tickets found on momondo in the last 72 hours was $801, round-trip. It should be noted that an average Iberia flight deal for this route in this time was higher, at $1,227 round-trip. Iberia operates 7 flights out of London Heathrow Airport into Portland in an average week, so prices vary by time and availability. 2,684 Iberia reviews by users on momondo have scored the airline at 7.0/10.


Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Lincoln City
Seaside
Cannon Beach
Salem
Vancouver
Astoria
Long Beach
Depoe Bay
Beaverton
Hood River
Rockaway Beach
Gresham
Hillsboro
McMinnville
Tigard
Longview
Clackamas
The Dalles
Oregon City
Pacific City

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Portland. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once all potential London to Portland 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 London to Portland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Portland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portland and let you know when they change.


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