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)
Dec 02 2025 - Dec 10 2025
From
USD 577
Round trip
Economy

Portland (PDX)to

London (LON)
Nov 27 2025 - Dec 10 2025
From
USD 659
Round trip
Economy

Portland (PDX)to

London (LON)
Dec 08 2025 - Dec 14 2025
From
USD 682
Round trip
Economy

Portland (PDX)to

London (LON)
Dec 11 2025 - Dec 14 2025
From
USD 682
Round trip
Economy

Portland (PDX)to

London (LON)
Dec 08 2025 - Dec 15 2025
From
USD 682
Round trip
Economy

Portland (PDX)to

London (LON)
Dec 09 2025 - Dec 15 2025
From
USD 682
Round trip
Economy

Portland (PDX)to

London (LON)
Dec 11 2025 - Dec 15 2025
From
USD 682
Round trip
Economy

Portland (PDX)to

London (LON)
Dec 09 2025 - Dec 14 2025
From
USD 682
Round trip
Economy

Portland (PDX)to

London (LHR)
Dec 02 2025 - Dec 07 2025
From
USD 727
Round trip
Economy

Portland (PDX)to

London (LHR)
Jan 07 2026 - Jan 15 2026
From
USD 928
Round trip
Economy

Portland (PDX)to

London (LHR)
Dec 01 2025 - Dec 15 2025
From
USD 1,133
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.

 

Blue image with a map of Iceland and text that reads: Include a little more of Iceland in your journey. Add a Stopover

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		Aug 25 2026 - Sep 22 2026

From

USD 787

Viewed 17 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Aug 25 2026 - Sep 23 2026

From

USD 787

Viewed 17 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Aug 26 2026 - Sep 16 2026

From

USD 787

Viewed 17 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Aug 26 2026 - Sep 22 2026

From

USD 787

Viewed 17 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Aug 26 2026 - Sep 25 2026

From

USD 787

Viewed 17 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Aug 25 2026 - Sep 16 2026

From

USD 787

Viewed 17 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Aug 25 2026 - Sep 18 2026

From

USD 787

Viewed 17 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Aug 25 2026 - Sep 25 2026

From

USD 787

Viewed 17 hrs ago

Portland (PDX)London (LON)Round trip
/
Economy		Aug 26 2026 - Sep 18 2026

From

USD 787

Viewed 17 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.