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Cheapest one-way flights from Portland (PDX) to London (LHR), August

Select a price to book. see full year.

Dates, airline, and price
Dates	Airline	Price
25 Aug	Icelandair
08 Aug	KLM
05 Aug	Icelandair
04 Aug	KLM
26 Aug	Icelandair
08 Aug	Finnair Direct Flight
04 Aug	British Airways Direct Flight
05 Aug	British Airways Direct Flight

deals for return flights from Portland to London in August.

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Updated May 21, 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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Cheapest one-way flights from Portland (PDX) to London (LHR), August

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