Cheapest return flights from Portland to London in December from 666€

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

Return flights

31 Dec - 09 Jan Lufthansa
30 Dec - 08 Jan Virgin Atlantic
31 Dec - 07 Jan Air Canada
30 Dec - 06 Jan Air France
31 Dec - 09 Jan Finnair direct
31 Dec - 07 Jan Finnair direct
28 Dec - 31 Dec KLM
30 Dec - 02 Jan Lufthansa
28 Dec - 31 Dec British Airways direct

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

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