Cheapest return flights from Portland to London in July from $990

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

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

Return flights

13 Jul - 24 Jul Icelandair
20 Jul - 03 Aug Delta
15 Jul - 22 Jul United
02 Jul - 07 Jul Icelandair
13 Jul - 24 Jul British Airways direct
20 Jul - 03 Aug British Airways direct
02 Jul - 07 Jul British Airways direct

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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