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

Click a month below to see all dates for that month.

All destinations from Portland (PDX)

Lowest fare by month
Month Price
September 2026 $ 840
October 2026 $ 663
November 2026 $ 589
January 2027 $ 864
March 2027 $ 789
June 2027 $ 1288
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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.

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