Cheapest return flights from Portland to London in July from $866

Best time to book flights for Portland (PDX) to London (LGW) flights at AirHint

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

Return flights

24 Jul - 27 Aug Icelandair
30 Jul - 04 Aug Icelandair
14 Jul - 24 Jul Delta
02 Jul - 16 Jul Icelandair
31 Jul - 12 Aug Delta
10 Jul - 29 Jul Sun Country Airlines
06 Jul - 13 Jul Frontier Airlines
13 Jul - 04 Aug Virgin Atlantic
04 Jul - 25 Jul Icelandair
01 Jul - 08 Jul Hawaiian Airlines

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

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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