AirHint found the following cheapest return flights from Portland (PDX) to London (LGW) in November 2025 (see full year).

Return flights

15 Nov - 24 Nov	Icelandair
10 Nov - 17 Nov	Icelandair
27 Nov - 30 Nov	Icelandair
28 Nov - 08 Dec	Alaska Airlines
06 Nov - 20 Nov	Sun Country Airlines
07 Nov - 16 Nov	Air Canada
16 Nov - 30 Nov	Icelandair
15 Nov - 29 Nov	Alaska Airlines
21 Nov - 28 Nov	Icelandair

Also check the deals for one-way flights from Portland to London in November.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Portland to London in November from $486

Return flights