Cheapest return flights from Portland (PDX) to London (LHR), December

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
07 Dec 15 Dec Icelandair
03 Dec 18 Dec Icelandair
02 Dec 11 Dec Alaska Airlines
12 Dec 20 Dec Icelandair
13 Dec 23 Dec Alaska Airlines
27 Dec 08 Jan Alaska Airlines
02 Dec 11 Dec Iberia
Direct Flight
12 Dec 28 Dec Alaska Airlines
01 Dec 05 Jan Alaska Airlines
10 Dec 04 Jan Icelandair
27 Dec 08 Jan Iberia
Direct Flight
28 Dec 03 Jan Air Canada
16 Dec 27 Dec Air Canada
16 Dec 17 Dec Air Canada
21 Dec 31 Dec Icelandair
23 Dec 03 Jan Alaska Airlines
28 Dec 03 Jan Iberia
Direct Flight
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deals for one-way flights from Portland to London in December.

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Updated Sep 3, 2026.

About these fares

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