Flights from London to Portland available from GBP 648*
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Our best rates from London to Portland
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Fly in the next 3 months: flights from London to Portland (PDX)
Icelandair airfare from London to Portland - starting at GBP 648
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GBP
London (LON)to
Portland (PDX)28 10 2026 - 03 11 2026
From
GBP 648
Viewed 1 day ago
Round trip
Economy
London (LON)to
Portland (PDX)28 10 2026 - 09 11 2026
From
GBP 648
Viewed 1 day ago
Round trip
Economy
London (LON)to
Portland (PDX)28 10 2026 - 14 11 2026
From
GBP 648
Viewed 1 day ago
Round trip
Economy
London (LON)to
Portland (PDX)28 10 2026 - 16 11 2026
From
GBP 648
Viewed 1 day ago
Round trip
Economy
London (LON)to
Portland (PDX)28 10 2026 - 26 11 2026
From
GBP 648
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 London (LON) to Portland (PDX) in the next 365 days
Book ahead and find our best prices in 2026 and beyond
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GBP
From | To | Fare type | Dates | Price | |
|---|---|---|---|---|---|
| London (LON) | Portland (PDX) | Round trip / Economy | 17 03 2027 - 21 03 2027 | From GBP 648 Viewed 8 hrs ago | |
| London (LON) | Portland (PDX) | Round trip / Economy | 17 03 2027 - 24 03 2027 | From GBP 648 Viewed 8 hrs ago | |
| London (LON) | Portland (PDX) | Round trip / Economy | 17 03 2027 - 31 03 2027 | From GBP 648 Viewed 8 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 London, UK to Portland, Oregon
Take in a city that’s famous for its unique culture and art scene with flights from London to Portland.
Travel in style with Icelandair and enjoy Wi-Fi access on most aircraft, ample in-flight entertainment options, and a range of authentic Icelandic snacks.
Icelandair offers regular flights from London, UK, to Portland, Oregon, so you can fly when it works for you.
FAQs about travel from London to Portland
Helpful information for travellers visiting Portland
What is the flight time from London to Portland?
The flight from London to Portland can be anywhere between 10 and 18 hours, with most routes including at least one layover along the way.
Icelandair flights include a convenient transfer at Keflavík International Airport, our hub just outside of Reykjavík.
How do you find cheap flights from London to Portland?
If you’re flexible about when you travel, browse our flight deals to see the latest offers on flights from London to Portland.
Does Icelandair offer flights from London Heathrow to Portland, Oregon?
Icelandair offers regular flights to Portland International Airport (PDX) from both London Heathrow Airport (LHR) and Gatwick Airport (LGW), so you can choose a route that’s convenient 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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