Flights from Portland to London available from USD 492*

Promo code

Our best rates from Portland to London

Jun 2025
FromUSD 1,183*
Fare: Round trip/Economy
Displaying fares for June-2025
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*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking

Fly in the next three months: flights from Portland to London

USD

Portland (PDX)to

London (LON)
Sep 08 2025 - Oct 07 2025
From
USD 582
Round trip
Economy

Portland (PDX)to

London (LON)
Sep 10 2025 - Oct 07 2025
From
USD 582
Round trip
Economy

Portland (PDX)to

London (LON)
Sep 11 2025 - Oct 12 2025
From
USD 582
Round trip
Economy

Portland (PDX)to

London (LON)
Sep 07 2025 - Oct 07 2025
From
USD 582
Round trip
Economy

Portland (PDX)to

London (LON)
Sep 11 2025 - Oct 07 2025
From
USD 582
Round trip
Economy

Portland (PDX)to

London (LON)
Sep 06 2025 - Oct 07 2025
From
USD 582
Round trip
Economy

Portland (PDX)to

London (LON)
Aug 23 2025 - Aug 28 2025
From
USD 585
Round trip
Economy

Portland (PDX)to

London (LON)
Aug 23 2025 - Sep 04 2025
From
USD 585
Round trip
Economy

Portland (PDX)to

London (LHR)
Aug 15 2025 - Sep 16 2025
From
USD 589
Round trip
Economy

Portland (PDX)to

London (LHR)
Aug 23 2025 - Sep 09 2025
From
USD 589
Round trip
Economy

Portland (PDX)to

London (LHR)
Aug 15 2025 - Aug 30 2025
From
USD 757
Round trip
Economy

Portland (PDX)to

London (LHR)
Aug 28 2025 - Sep 09 2025
From
USD 843
Round trip
Economy

*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking. We display fares for Economy Light as standard but it is possible to change your class of service during the booking process. You can also add baggage, meals and extra legroom to your trip during booking.

 

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Plan ahead for your trip from Portland to London with Icelandair

USD
Plan ahead for your trip from Portland to London with Icelandair
From
To
Fare type
Dates
Price
Portland (PDX)London (LHR)Round trip
/
Economy		Mar 14 2026 - Mar 18 2026

From

USD 576

Viewed 1 hour ago

Portland (PDX)London (LON)Round trip
/
Economy		Mar 07 2026 - Mar 16 2026

From

USD 572

Viewed 2 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Mar 07 2026 - Mar 18 2026

From

USD 572

Viewed 2 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Mar 07 2026 - Mar 20 2026

From

USD 572

Viewed 2 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Mar 07 2026 - Mar 23 2026

From

USD 572

Viewed 2 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Mar 09 2026 - Mar 23 2026

From

USD 572

Viewed 2 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Mar 10 2026 - Mar 22 2026

From

USD 572

Viewed 2 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Mar 12 2026 - Mar 18 2026

From

USD 572

Viewed 2 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Mar 12 2026 - Mar 20 2026

From

USD 572

Viewed 2 hrs ago

*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking. We display fares for Economy Light as standard but it is possible to change your class of service during the booking process. You can also add baggage, meals and extra legroom to your trip during booking.

Flights from Portland, Oregon to London, UK

Big Ben, Buckingham Palace, Bond Street. Explore all that England’s capital has to offer when you fly from Portland to London.

When you travel with Icelandair, you can enjoy plenty of on-board services including an extensive library of in-flight entertainment options, delicious snacks and drinks from the Saga Kitchen, and even extra legroom.

What’s more, Icelandair offers regular flights from Portland to London, meaning you can fly when it’s convenient for you. Use our booking tool above to find times and prices.

 

FAQs about travel from Portland to London

Helpful information for travelers visiting London

How long is the flight from Portland to London?

Flights from Portland to London can take anywhere between 12 and 17 hours depending on how many layovers you’ll have along the route (and how long those layovers last). All transatlantic Icelandair flights include a convenient transfer at Keflavík International Airport, in Iceland.

How do you find cheap flights from Portland to London?

Searching for a saving on your flight to London? Take a look at our flight deals to find the latest airfare offers from Portland to London.

Which London airport will I fly in to?

Icelandair offers regular flights from Portland International Airport (PDX) to both London Heathrow Airport (LHR) and Gatwick Airport (LGW), so you can choose a route that works for you.

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