Cheapest one-way flights from Portland to London in May from $346

AirHint found the following cheapest one-way flights from Portland (PDX) to London (LHR) in May 2026 (see full year).

One-Way flights

12 May Icelandair
04 May Virgin Atlantic
13 May Virgin Atlantic
12 May British Airways direct
30 May WestJet
30 May British Airways direct

Also check the deals for return flights from Portland to London in May.

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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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