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

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
25 May 01 Jun Virgin Atlantic
28 May 02 Jun Icelandair
22 May 25 May KLM
31 May 06 Jun KLM
26 May 02 Jun Icelandair
25 May 05 Jun Alaska Airlines
23 May 25 May Alaska Airlines
22 May 26 May Lufthansa
25 May 05 Jun British Airways
Direct Flight
22 May 26 May British Airways
Direct Flight
31 May 06 Jun British Airways
Direct Flight
22 May 25 May Iberia
Direct Flight
23 May 25 May Iberia
Direct Flight
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deals for one-way flights from Portland to London in May.

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Updated May 21, 2026.

About these fares

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