Cheapest one-way flights from Portland to London in August from 317€

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

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

One-Way flights

19 Aug Hawaiian Airlines
06 Aug Hawaiian Airlines
15 Aug Frontier Airlines
17 Aug Icelandair
10 Aug Icelandair
16 Aug Iberia
16 Aug American Airlines direct
15 Aug American Airlines direct
11 Aug Air Canada
19 Aug British Airways direct

Also check the deals for return 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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