Flights from Portland to London available from USD 518*

Promo code

Our best rates from Portland to London

*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 (LHR)
Nov 15 2025 - Nov 19 2025
From
USD 522
Round trip
Economy

Portland (PDX)to

London (LHR)
Oct 06 2025 - Oct 14 2025
From
USD 523
Round trip
Economy

Portland (PDX)to

London (LHR)
Oct 01 2025 - Oct 07 2025
From
USD 523
Round trip
Economy

Portland (PDX)to

London (LHR)
Nov 08 2025 - Nov 12 2025
From
USD 523
Round trip
Economy

Portland (PDX)to

London (LHR)
Oct 16 2025 - Oct 23 2025
From
USD 526
Round trip
Economy

Portland (PDX)to

London (LHR)
Nov 06 2025 - Nov 19 2025
From
USD 681
Round trip
Economy

Portland (PDX)to

London (LHR)
Nov 18 2025 - Nov 24 2025
From
USD 799
Round trip
Economy

Portland (PDX)to

London (LHR)
Nov 24 2025 - Dec 07 2025
From
USD 817
Round trip
Economy

Portland (PDX)to

London (LON)
Nov 04 2025 - Dec 05 2025
From
USD 519
Round trip
Economy

Portland (PDX)to

London (LON)
Nov 06 2025 - Nov 12 2025
From
USD 519
Round trip
Economy

Portland (PDX)to

London (LON)
Nov 06 2025 - Nov 17 2025
From
USD 519
Round trip
Economy

Portland (PDX)to

London (LON)
Nov 10 2025 - Nov 16 2025
From
USD 519
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		Apr 07 2026 - Apr 15 2026

From

USD 539

Viewed 18 hrs ago

Portland (PDX)London (LHR)Round trip
/
Economy		May 04 2026 - May 18 2026

From

USD 845

Viewed 2 days ago

Portland (PDX)London (LHR)Round trip
/
Economy		Jul 24 2026 - Aug 03 2026

From

USD 1,025

Viewed 2 days ago

Portland (PDX)London (LHR)Round trip
/
Economy		Jun 15 2026 - Jul 01 2026

From

USD 1,273

Viewed 2 days ago

Portland (PDX)London (LHR)Round trip
/
Economy		Jul 09 2026 - Jul 18 2026

From

USD 1,506

Viewed 2 days ago

Portland (PDX)London (LON)Round trip
/
Economy		Mar 16 2026 - Mar 23 2026

From

USD 519

Viewed 5 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Mar 16 2026 - Mar 20 2026

From

USD 519

Viewed 5 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Mar 16 2026 - Mar 22 2026

From

USD 519

Viewed 5 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Mar 17 2026 - Mar 22 2026

From

USD 519

Viewed 5 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.