Cheapest return flights from Portland (PDX) to London (LHR), January

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
18 Jan 03 Feb Icelandair
17 Jan 02 Feb Alaska Airlines
13 Jan 22 Jan Alaska Airlines
03 Jan 13 Jan Alaska Airlines
19 Jan 03 Feb Alaska Airlines
03 Jan 13 Jan British Airways
Direct Flight
13 Jan 22 Jan Iberia
Direct Flight
18 Jan 03 Feb American Airlines
Direct Flight
02 Jan 05 Jan Icelandair
Powered by

deals for one-way flights from Portland to London in January.

Book a cheap hotel in London

Cheap car rent in Heathrow

Updated Sep 3, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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