$520 Cheap Alaska Airlines flights Portland (PDX) to London (LHR)

View $520 flight on Mon, Jul 6, 2026Opens in a new window

$520 Cheap Alaska Airlines flights Portland (PDX) to London (LHR)

Prices were available within the past 7 days and start at $520 for one-way flights and $1,120 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Jul 6 - Tue, Jul 28
PDX
Portland
LHR
London
$1,120 Roundtrip, found 1 day ago
$1,120
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Jul 6 from Portland to London, returning Tue, Jul 28, priced at $1,120 found 1 day ago

Find the cheapest month to fly from Portland (PDX) to London (LHR)

April is typically the cheapest month to fly

From $488 - $1,371 per traveler.
Flights from Portland (PDX) to London (LHR)
Origin airport
Portland Intl.
Destination airport
Heathrow
Airlines serving
Air Canada, Air France, Alaska Airlines, American Airlines, British Airways, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, United, Virgin Atlantic
Popular airline
Finnair
Distance
7839 km
Average flight time
9 hours 35 mins