Flights from Portland to London available from USD 455*

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 04 2025 - Nov 11 2025
From
USD 481
Round trip
Economy

Portland (PDX)to

London (LON)
Oct 15 2025 - Oct 31 2025
From
USD 519
Round trip
Economy

Portland (PDX)to

London (LON)
Oct 15 2025 - Nov 07 2025
From
USD 519
Round trip
Economy

Portland (PDX)to

London (LON)
Oct 15 2025 - Nov 10 2025
From
USD 519
Round trip
Economy

Portland (PDX)to

London (LON)
Oct 15 2025 - Nov 14 2025
From
USD 519
Round trip
Economy

Portland (PDX)to

London (LON)
Oct 16 2025 - Nov 02 2025
From
USD 519
Round trip
Economy

Portland (PDX)to

London (LON)
Oct 16 2025 - Nov 12 2025
From
USD 519
Round trip
Economy

Portland (PDX)to

London (LON)
Oct 18 2025 - Nov 02 2025
From
USD 519
Round trip
Economy

Portland (PDX)to

London (LHR)
Oct 01 2025 - Oct 15 2025
From
USD 455
Round trip
Economy

Portland (PDX)to

London (LHR)
Oct 30 2025 - Nov 09 2025
From
USD 523
Round trip
Economy

Portland (PDX)to

London (LHR)
Oct 24 2025 - Oct 31 2025
From
USD 523
Round trip
Economy

Portland (PDX)to

London (LHR)
Nov 15 2025 - Dec 05 2025
From
USD 541
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		Mar 07 2026 - Mar 13 2026

From

USD 519

Viewed 2 days ago

Portland (PDX)London (LON)Round trip
/
Economy		Mar 07 2026 - Mar 15 2026

From

USD 519

Viewed 2 days ago

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

From

USD 519

Viewed 2 days ago

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

From

USD 519

Viewed 2 days ago

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

From

USD 519

Viewed 2 days ago

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

From

USD 519

Viewed 2 days ago

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

From

USD 519

Viewed 2 days ago

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

From

USD 519

Viewed 2 days ago

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

From

USD 519

Viewed 2 days 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.