Flights from Portland to London available from USD 513*

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 (LON)
Nov 17 2025 - Nov 23 2025
From
USD 513
Round trip
Economy

Portland (PDX)to

London (LON)
Nov 17 2025 - Dec 05 2025
From
USD 513
Round trip
Economy

Portland (PDX)to

London (LON)
Nov 17 2025 - Dec 12 2025
From
USD 513
Round trip
Economy

Portland (PDX)to

London (LON)
Nov 24 2025 - Dec 03 2025
From
USD 513
Round trip
Economy

Portland (PDX)to

London (LON)
Nov 24 2025 - Dec 05 2025
From
USD 513
Round trip
Economy

Portland (PDX)to

London (LON)
Nov 24 2025 - Dec 12 2025
From
USD 513
Round trip
Economy

Portland (PDX)to

London (LON)
Nov 25 2025 - Dec 05 2025
From
USD 513
Round trip
Economy

Portland (PDX)to

London (LON)
Nov 25 2025 - Dec 07 2025
From
USD 513
Round trip
Economy

Portland (PDX)to

London (LHR)
Nov 25 2025 - Dec 10 2025
From
USD 516
Round trip
Economy

Portland (PDX)to

London (LHR)
Nov 15 2025 - Nov 19 2025
From
USD 541
Round trip
Economy

Portland (PDX)to

London (LHR)
Nov 24 2025 - Dec 05 2025
From
USD 612
Round trip
Economy

Portland (PDX)to

London (LHR)
Dec 01 2025 - Dec 05 2025
From
USD 613
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 (LON)Round trip
/
Economy		May 09 2026 - May 20 2026

From

USD 595

Viewed 23 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		May 11 2026 - May 20 2026

From

USD 595

Viewed 23 hrs ago

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

From

USD 595

Viewed 23 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		May 11 2026 - May 17 2026

From

USD 640

Viewed 23 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		May 09 2026 - May 17 2026

From

USD 640

Viewed 23 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		May 12 2026 - May 17 2026

From

USD 640

Viewed 23 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		May 14 2026 - May 20 2026

From

USD 653

Viewed 23 hrs ago

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

From

USD 653

Viewed 23 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		May 09 2026 - May 15 2026

From

USD 659

Viewed 23 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.