Flights from Portland to London available from USD 748*
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Our best rates from Portland to London
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Fly in the next 3 months: flights from Portland to London (LON)
Icelandair airfare from Portland to London - starting at USD 843
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USD
Portland (PDX)to
London (LON)Nov 03 2026 - Nov 18 2026
From
USD 843
Viewed 1 day ago
Round trip
Economy
Portland (PDX)to
London (LON)Nov 03 2026 - Nov 25 2026
From
USD 843
Viewed 1 day ago
Round trip
Economy
Portland (PDX)to
London (LON)Dec 07 2026 - Dec 18 2026
From
USD 843
Viewed 1 day ago
Round trip
Economy
Portland (PDX)to
London (LON)Nov 30 2026 - Dec 18 2026
From
USD 843
Viewed 1 day ago
Round trip
Economy
Portland (PDX)to
London (LON)Dec 01 2026 - Dec 18 2026
From
USD 843
Viewed 1 day ago
Round trip
Economy
*Fares displayed have been collected within the last 72 hours 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 (PDX) to London (LON) in the next 365 days
Book ahead and find our best prices in 2026 and beyond
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From | To | Fare type | Dates | Price | |
|---|---|---|---|---|---|
| Portland (PDX) | London (LON) | Round trip / Economy | Apr 20 2027 - Apr 29 2027 | From USD 748 Viewed 1 day ago | |
| Portland (PDX) | London (LON) | Round trip / Economy | Apr 13 2027 - Apr 20 2027 | From USD 748 Viewed 1 day ago | |
| Portland (PDX) | London (LON) | Round trip / Economy | Apr 13 2027 - Apr 29 2027 | From USD 748 Viewed 1 day ago | |
| Portland (PDX) | London (LHR) | Round trip / Economy | Mar 17 2027 - Mar 26 2027 | From USD 1,334 Viewed 7 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.
Make the most of your trip
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.
Flying with Icelandair: more than just a journey
Generous baggage allowances
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Entertainment for all ages
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