AirHint found the following cheapest return flights from Portland (PDX) to London (LHR) in February 2026 (see full year).

Return flights

09 Feb - 06 Mar	Lufthansa
09 Feb - 25 Feb	Brussels Airlines
09 Feb - 18 Feb	KLM
18 Feb - 25 Feb	Delta
04 Feb - 16 Feb	KLM
11 Feb - 20 Feb	British Airways	direct
09 Feb - 18 Feb	British Airways	direct
09 Feb - 25 Feb	British Airways	direct
16 Feb - 27 Feb	British Airways	direct
09 Feb - 06 Mar	British Airways	direct
08 Feb - 15 Feb	Delta
06 Feb - 27 Feb	Delta
08 Feb - 01 Mar	Delta
08 Feb - 01 Mar	British Airways	direct

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

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 February from 492€

Return flights