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Cheap flights from London Heathrow Airport to Portland from $656

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 1/11. 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

United Airlines Logo
6:30 am - 2:46 pmLHR-PDX
16h 16m2 stops
United Airlines Logo
5:00 am - 6:20 amPDX-LHR
17h 20m2 stops
$725United Airlines
Find Deal
Tue, Sep 23 - Sun, Sep 28
British Airways Logo
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
British Airways Logo
7:25 pm - 1:00 pmPDX-LHR
9h 35mnonstop
$727British Airways
Find Deal
Wed, Sep 24 - Wed, Oct 1
British Airways Logo
1:45 pm - 3:55 pmLHR-PDX
10h 10mnonstop
British Airways Logo
5:45 pm - 11:20 amPDX-LHR
9h 35mnonstop
$728British Airways
Find Deal
Fri, Jan 16 - Fri, Jan 23
United Airlines Logo
7:45 am - 8:20 pmLHR-PDX
20h 35m2 stops
United Airlines Logo
2:15 pm - 11:45 amPDX-LHR
13h 30m1 stop
$729United Airlines
Find Deal
Sun, Oct 12 - Sun, Oct 19
British Airways Logo
10:30 am - 6:54 pmLHR-PDX
16h 24m1 stop
British Airways Logo
7:25 pm - 1:00 pmPDX-LHR
9h 35mnonstop
$730British Airways
Find Deal
Tue, Sep 9 - Thu, Sep 18
Virgin Atlantic Logo
6:30 am - 11:20 amLHR-PDX
12h 50m1 stop
Virgin Atlantic Logo
5:25 pm - 6:25 amPDX-LHR
29h 00m2 stops
$733Virgin Atlantic
Find Deal
Mon, Oct 13 - Mon, Oct 20
Delta Logo
6:30 am - 2:52 pmLHR-PDX
16h 22m2 stops
Delta Logo
1:25 pm - 11:25 amPDX-LHR
14h 00m1 stop
$734Delta
Find Deal
Thu, Sep 11 - Thu, Sep 25
American Airlines Logo
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
American Airlines Logo
7:39 am - 6:25 amPDX-LHR
14h 46m1 stop
$755American Airlines
Find Deal
Wed, Sep 10 - Wed, Oct 1
Delta Logo
6:30 am - 11:20 amLHR-PDX
12h 50m1 stop
Delta Logo
9:58 am - 9:50 amPDX-LHR
15h 52m1 stop
$757Delta
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Sat, Oct 11 - Sat, Oct 18
American Airlines Logo
2:25 pm - 12:05 amLHR-PDX
17h 40m1 stop
American Airlines Logo
7:25 pm - 1:00 pmPDX-LHR
9h 35mnonstop
$760American Airlines
Find Deal
Mon, Sep 8 - Mon, Sep 29

American Airlines flights from London Heathrow Airport to Portland

Our best American Airlines deals on London Heathrow Airport to Portland flight tickets
American Airlines
Sep 10
LHR3:40 pmLondon Heathrow
9h 55m
PDX5:35 pmPortland
Oct 1
PDX7:39 amPortland
14h 46m
1 stop
LHR6:25 amLondon Heathrow
$755
Find similar
American Airlines
Sep 8
LHR2:25 pmLondon Heathrow
17h 40m
1 stop
PDX12:05 amPortland
Sep 29
PDX7:25 pmPortland
9h 35m
LHR1:00 pmLondon Heathrow
$760
Find similar
American Airlines
Sep 22
LHR9:45 amLondon Heathrow
18h 52m
2 stops
PDX8:37 pmPortland
Oct 6
PDX5:34 amPortland
16h 46m
2 stops
LHR6:20 amLondon Heathrow
$761
Find similar

Air Canada flights from London Heathrow Airport to Portland

Our best Air Canada deals on London Heathrow Airport to Portland flight tickets
Air Canada
Sep 9
LHR9:30 amLondon Heathrow
17h 16m
2 stops
PDX6:46 pmPortland
Sep 15
PDX10:00 amPortland
17h 50m
2 stops
LHR11:50 amLondon Heathrow
$740
Find similar
Air Canada
Sep 5
LHR10:15 amLondon Heathrow
16h 31m
2 stops
PDX6:46 pmPortland
Sep 20
PDX5:30 amPortland
17h 05m
2 stops
LHR6:35 amLondon Heathrow
$742
Find similar
Air Canada
Sep 21
LHR2:10 pmLondon Heathrow
27h 11m
1 stop
PDX9:21 amPortland
Oct 11
PDX9:55 amPortland
19h 25m
1 stop
LHR1:20 pmLondon Heathrow
$746
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to Portland 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 August 30, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 9/23

6:30 am-2:46 pm

2 stops16h 16m

Portland

Sun 9/28

5:00 am-6:20 am

2 stops17h 20m

$725

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Wed 9/24

3:40 pm-5:35 pm

Nonstop9h 55m

Portland

Wed 10/1

7:25 pm-1:00 pm

Nonstop9h 35m

$727

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Fri 1/16

1:45 pm-3:55 pm

Nonstop10h 10m

Portland

Fri 1/23

5:45 pm-11:20 am

Nonstop9h 35m

$728

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Sun 10/12

7:45 am-8:20 pm

2 stops20h 35m

Portland

Sun 10/19

2:15 pm-11:45 am

1 stop13h 30m

$729

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 9/9

10:30 am-6:54 pm

1 stop16h 24m

Portland

Thu 9/18

7:25 pm-1:00 pm

Nonstop9h 35m

$730

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 10/13

6:30 am-11:20 am

1 stop12h 50m

Portland

Mon 10/20

5:25 pm-6:25 am

2 stops29h 00m

$733

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Thu 9/11

6:30 am-2:52 pm

2 stops16h 22m

Portland

Thu 9/25

1:25 pm-11:25 am

1 stop14h 00m

$734

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Wed 9/10

3:40 pm-5:35 pm

Nonstop9h 55m

Portland

Wed 10/1

7:39 am-6:25 am

1 stop14h 46m

$755

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Sat 10/11

6:30 am-11:20 am

1 stop12h 50m

Portland

Sat 10/18

9:58 am-9:50 am

1 stop15h 52m

$757

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 9/8

2:25 pm-12:05 am

1 stop17h 40m

Portland

Mon 9/29

7:25 pm-1:00 pm

Nonstop9h 35m

$760

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between London Heathrow Airport and Portland?

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 $783, 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 September to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of $799.

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 Monday when prices can be found for as low as $879. 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 Sunday, 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 $942. 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 weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $890 when searching 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 $806 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.

Can stopping save me money on London Heathrow Airport to Portland flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Portland.

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

As of August 2025, prices for London Heathrow Airport to Portland flights are approximately 2% 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

$890

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 $890. The best round-trip flight deal from London Heathrow Airport to Portland found on momondo in the last 72 hours is $785.
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)
Search flight deals

  • 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
8,941 reviews
Search United Airlines flights
British AirwaysPriceFrom $733Free CancellationRating
6.7
7,320 reviews
Search British Airways flights
American AirlinesPriceFrom $782Free 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 $782 round-trip. Over the 7 American Airlines flights for this route in a normal week, average airfare is usually $953 round-trip - but some users have found much cheaper deals with momondo.

  • British Airways Flights From London Heathrow Airport to Portland

    The best British Airways deal for London Heathrow Airport to Portland flight tickets found on momondo in the last 72 hours was $733, round-trip. It should be noted that an average British Airways flight deal for this route in this time was higher, at $931 round-trip. British Airways operates 7 flights out of London Heathrow Airport into Portland in an average week, so prices vary by time and availability. 7,320 British Airways reviews by users on momondo have scored the airline at 6.7/10.

Traveling to a place near Portland?

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

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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