Cheapest return flights from Portland to London in August from 443€

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

Return flights

16 Aug - 05 Sep Air Canada
27 Aug - 03 Sep Delta
26 Aug - 02 Sep British Airways direct
20 Aug - 27 Aug British Airways
27 Aug - 19 Sep Delta
13 Aug - 19 Aug British Airways
04 Aug - 10 Aug Virgin Atlantic
25 Aug - 01 Sep Delta
24 Aug - 31 Aug British Airways direct
25 Aug - 01 Sep British Airways direct
15 Aug - 29 Aug British Airways
22 Aug - 02 Sep British Airways
22 Aug - 29 Aug British Airways
04 Aug - 18 Aug Delta
14 Aug - 21 Aug British Airways
18 Aug - 25 Aug British Airways
01 Aug - 13 Aug Delta
28 Aug - 04 Sep British Airways
28 Aug - 14 Sep Delta
30 Aug - 06 Sep British Airways

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

Skyscanner

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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