Cheapest return flights from Portland to London in July from $1001

AirHint found the following cheapest return flights from Portland (PDX) to London (LGW) in July 2026 (see full year).

Return flights

07 Jul - 01 Aug Icelandair
21 Jul - 15 Aug Alaska Airlines

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

Powered by

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.

Book a cheap hotel in London

Cheap car rent in London

Feel free to contact us with any feedback or request another flight research.