What airlines fly to Portland?

British Airways, United Airlines and American Airlines are the top three most popular airlines that fly to Portland from London according to our data. British Airways is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 3 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from London to Portland?

JetBlue, Virgin Atlantic, and Lufthansa are the most popular carriers operating from London to Portland

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

How many flights depart from London to Portland on average per week?

The number of flights available between London and Portland is 16 per week as of December 2025. The most frequent departure day is Mon, with 44% of weekly flights leaving on this day.

How many flights depart from London to Portland on average per day?

As of December 2025, there are 2 flights per day flying from London to Portland. The most common time of day flights depart is 1:00PM, with 100% of flights taking off in the afternoon.

What is the most punctual flight time for London to Portland flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Which airline has the best punctuality record on London to Portland flights?

According to our data, British Airways have had the least number of delays on this route over the last 12 months; with about 21% of their flights experiencing any sort of delay.

How often are flights from London to Portland delayed?

Historically, on average around 21% of flights between London and Portland have experienced a delay on any given week. The average delay length over the past 12 months has been 118 minutes.

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

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

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

There are 3 operators available for flights from London to Portland Airport as of December 2025.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Portland Airport.

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

The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$404 Cheap Flights from London to Portland in 2025/26

Q: What is the typical price of a round-trip flight between London and Portland?

Prices are currently low for flights on this route. Typical prices usually range from $864 to $1,199. The lowest price recently found on this route was $704.

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Find the cheapest flights from London to Portland

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Enter your travel dates to find the best prices.

3:40 pm - 5:40 pm

LHR

PDX

10h 00mnonstop

7:30 pm - 1:00 pm

PDX

LHR

9h 30mnonstop

$704British Airways

Mon, May 4 - Mon, May 18

3:15 pm - 11:37 pm

LHR

PDX

16h 22m1 stop

7:30 pm - 1:00 pm

PDX

LHR

9h 30mnonstop

$709British Airways

Mon, May 4 - Mon, May 18

3:15 pm - 11:37 pm

LHR

PDX

16h 22m1 stop

7:30 pm - 1:00 pm

PDX

LHR

9h 30mnonstop

$710British Airways

Mon, May 4 - Mon, May 18

10:35 am - 10:11 pm

LHR

PDX

19h 36m1 stop

6:43 am - 11:40 am

PDX

LHR

20h 57m1 stop

$728Iberia

Mon, Feb 9 - Mon, Feb 23

4:30 pm - 11:45 am

LHR

PDX

27h 15m1 stop

5:45 pm - 11:20 am

PDX

LHR

9h 35mnonstop

$730Iberia

Mon, Feb 9 - Mon, Feb 23

10:35 am - 6:51 pm

LHR

PDX

16h 16m1 stop

5:45 pm - 11:20 am

PDX

LHR

9h 35mnonstop

$731Finnair

Mon, Feb 9 - Mon, Feb 23

10:05 am - 6:51 pm

LHR

PDX

16h 46m1 stop

2:16 pm - 6:50 am

PDX

LHR

32h 34m1 stop

$732Multiple Airlines

Tue, Jan 20 - Sun, Jan 25

6:05 am - 6:51 pm

LHR

PDX

20h 46m2 stops

5:44 am - 6:20 am

PDX

LHR

16h 36m2 stops

$733American Airlines

Mon, Feb 9 - Mon, Feb 23

6:05 am - 6:51 pm

LHR

PDX

20h 46m2 stops

2:05 pm - 11:40 am

PDX

LHR

13h 35m1 stop

$734American Airlines

Mon, Feb 9 - Mon, Feb 23

1:00 pm - 12:38 pm

LGW

PDX

31h 38m2 stops

10:39 am - 6:00 am

PDX

LGW

35h 21m1 stop

$744Multiple Airlines

Mon, Feb 9 - Mon, Feb 23

Iberia flights from London to Portland

Our best Iberia deals on London to Portland flight tickets

Iberia

Feb 9

LHR10:35 amLondon Heathrow

19h 36m

1 stop

PDX10:11 pmPortland

Feb 23

PDX6:43 amPortland

20h 57m

1 stop

LHR11:40 amLondon Heathrow

$728

Find similar

Iberia

Feb 9

LHR4:30 pmLondon Heathrow

27h 15m

1 stop

PDX11:45 amPortland

Feb 23

PDX5:45 pmPortland

9h 35m

LHR11:20 amLondon Heathrow

$730

Find similar

Iberia

Feb 9

LHR7:05 pmLondon Heathrow

24h 40m

2 stops

PDX11:45 amPortland

Feb 23

PDX6:43 amPortland

20h 57m

1 stop

LHR11:40 amLondon Heathrow

$737

Find similar

Icelandair flights from London to Portland

Our best Icelandair deals on London to Portland flight tickets

Icelandair

Apr 27

LHR1:05 pmLondon Heathrow

12h 55m

1 stop

PDX6:00 pmPortland

May 5

PDX3:30 pmPortland

12h 25m

1 stop

LHR11:55 amLondon Heathrow

$739

Find similar

Icelandair

Apr 16

LGW3:40 pmLondon Gatwick

34h 20m

1 stop

PDX6:00 pmPortland

May 4

PDX3:30 pmPortland

12h 15m

1 stop

LGW11:45 amLondon Gatwick

$784

Find similar

Icelandair

Apr 16

LHR9:25 pmLondon Heathrow

28h 35m

1 stop

PDX6:00 pmPortland

May 4

PDX3:30 pmPortland

20h 50m

1 stop

LHR8:20 pmLondon Heathrow

$788

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 5/4

3:40 pm-5:40 pm

Nonstop10h 00m

Portland

Mon 5/18

7:30 pm-1:00 pm

Nonstop9h 30m

$704

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 5/4

3:15 pm-11:37 pm

1 stop16h 22m

Portland

Mon 5/18

7:30 pm-1:00 pm

Nonstop9h 30m

$709

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 5/4

3:15 pm-11:37 pm

1 stop16h 22m

Portland

Mon 5/18

7:30 pm-1:00 pm

Nonstop9h 30m

$710

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 2/9

10:35 am-10:11 pm

1 stop19h 36m

Portland

Mon 2/23

6:43 am-11:40 am

1 stop20h 57m

$728

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 2/9

4:30 pm-11:45 am

1 stop27h 15m

Portland

Mon 2/23

5:45 pm-11:20 am

Nonstop9h 35m

$730

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 2/9

10:35 am-6:51 pm

1 stop16h 16m

Portland

Mon 2/23

5:45 pm-11:20 am

Nonstop9h 35m

$731

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 1/20

10:05 am-6:51 pm

1 stop16h 46m

Portland

Sun 1/25

2:16 pm-6:50 am

1 stop32h 34m

$732

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 2/9

6:05 am-6:51 pm

2 stops20h 46m

Portland

Mon 2/23

5:44 am-6:20 am

2 stops16h 36m

$733

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 2/9

6:05 am-6:51 pm

2 stops20h 46m

Portland

Mon 2/23

2:05 pm-11:40 am

1 stop13h 35m

$734

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Mon 2/9

1:00 pm-12:38 pm

2 stops31h 38m

Portland

Mon 2/23

10:39 am-6:00 am

1 stop35h 21m

$744

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London 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

Prices

Airlines

Delays

Other information

What is the typical price of a round-trip flight between London and Portland?

What is the cheapest month to fly to Portland?

The cheapest month to fly to Portland from London is in September. Flight prices, which tend to average around $737, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in September, then you should wait until March to fly from London, when ticket prices are also cheap, with an average price of $754.

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 $871. 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 $1,142.

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

The cheapest time of day to fly to Portland is at noon when flights can be purchased for as low as $930. 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 to Portland flight route?

Fly from London Heathrow to Portland for the best London - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $877 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from London for as low as $791 on momondo.

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

There are 3 cabin classes available to choose from on London 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 to Portland flights?

You could potentially save up to 13% on your flight if you consider stops on a London to Portland flight.

How have London to Portland flight prices changed over time?

As of December 2025, prices for London to Portland flights are approximately 8% cheaper when compared to flights at the same time last year.

When to book flights from London to Portland

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

Estimated round-trip price

Cheap London to Portland (LON to PDX) flight deals and tips

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

Fastest flight time	10h 00m
Direct flights	Every day
Airports in Portland	1 airport

The fastest flight from London to Portland takes 10h 00m

Direct flights go from London to Portland every day.

There is 1 airport in Portland. From London there are direct flights to Portland (PDX).

Search flight deals

How far is London to Portland by plane?
The distance between London and Portland is about 4909.8 mi. Typically, this will take 10h 00m by plane in normal conditions.
When did momondo last update prices for flights from London to Portland Airport?
Prices for flights from London to Portland Airport are updated daily.
How many operators does momondo search for flights from London to Portland Airport?
There are 3 operators available for flights from London to Portland Airport as of December 2025.
How old do you have to be to fly from London to Portland Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to Portland?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to Portland is Boeing 787-8 Dreamliner (51.12% of total bookings). The next most popular plane models are Boeing 787-10 Dreamliner (23.88%), Boeing 787-9 Dreamliner (18.28%), and Airbus A380-800 (1.37%).
What is the most popular airline from London to Portland?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London to Portland is British Airways (70% of total bookings). The next most popular airline is American Airlines (30%).

Best airlines flying from London to Portland

Compare and see reviews for airlines that fly from London to Portland with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $704	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
British Airways	PriceFrom $715	Free Cancellation	Rating 6.7 7,586 reviews	Search British Airways flights
American Airlines	PriceFrom $737	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights

American Airlines Flights From London to Portland
American Airlines is one of the most popular airlines flying from London to Portland, operating 2 flights/week on average for this route. A good American Airlines flight deal for London to Portland starts from $737 round-trip, up to an average price of $953. Our users have rated American Airlines at 7.2/10.
British Airways Flights From London to Portland
Across 7,586 British Airways reviews on momondo, the average score is 6.7/10. British Airways flies from London to Portland about 2 times each week, with ticket deals ranging from $715 to $899. Price data is based on momondo searches in the last 72 hours.

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Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portland from London.

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

All flight searches from London to Portland on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Portland.

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.

An easier way to manage your Portland trip

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Cheap flights from London to Portland from $404

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 to Portland departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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Iberia flights from London to Portland

Our best Iberia deals on London to Portland flight tickets

Icelandair flights from London to Portland

Our best Icelandair deals on London to Portland flight tickets

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Use the filters below to find and compare flights from London to Portland that are best for you.

See travel insights to Portland from

How to get the cheapest flight ticket from London to Portland

What is the typical price of a round-trip flight between London and Portland?

What is the cheapest month to fly to Portland?

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 $871. 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 $1,142.

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

The cheapest time of day to fly to Portland is at noon when flights can be purchased for as low as $930. 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 to Portland flight route?

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

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

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

There are 3 cabin classes available to choose from on London 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 to Portland flights?

You could potentially save up to 13% on your flight if you consider stops on a London to Portland flight.

How have London to Portland flight prices changed over time?

As of December 2025, prices for London to Portland flights are approximately 8% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from London to Portland?

JetBlue, Virgin Atlantic, and Lufthansa are the most popular carriers operating from London to Portland

What airlines fly to Portland?

How often are flights from London to Portland delayed?

Historically, on average around 21% of flights between London and Portland have experienced a delay on any given week. The average delay length over the past 12 months has been 118 minutes.

What is the most punctual flight time for London to Portland flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on London to Portland flights?

According to our data, British Airways have had the least number of delays on this route over the last 12 months; with about 21% of their flights experiencing any sort of delay.

How many flights depart from London to Portland on average per day?

As of December 2025, there are 2 flights per day flying from London to Portland. The most common time of day flights depart is 1:00PM, with 100% of flights taking off in the afternoon.

How many flights depart from London to Portland on average per week?

The number of flights available between London and Portland is 16 per week as of December 2025. The most frequent departure day is Mon, with 44% of weekly flights leaving on this day.

When to book flights from London to Portland

Cheap London to Portland (LON to PDX) flight deals and tips

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

Fastest flight time

Direct flights

Airports in Portland

How far is London to Portland by plane?

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

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

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

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

What is the most popular plane model from London to Portland?

What is the most popular airline from London to Portland?

Best airlines flying from London to Portland

Compare and see reviews for airlines that fly from London to Portland with momondo

American Airlines Flights From London to Portland

British Airways Flights From London to Portland

Traveling to a place near Portland?

Why use momondo?

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

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

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

I’m not ready to book a flight from London to Portland right now. Can momondo alert me if prices change?

An easier way to manage your Portland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.