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

One-Way flights

11 Apr	Icelandair
01 Apr	Hawaiian Airlines
13 Apr	Icelandair
03 Apr	Hawaiian Airlines
01 Apr	British Airways	direct
10 Apr	Air Canada
03 Apr	British Airways	direct
13 Apr	British Airways	direct
11 Apr	Iberia	direct
10 Apr	American Airlines	direct

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

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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Cheapest one-way flights from Portland to London in April from 264€

One-Way flights