Cheapest one-way flights from Washington (IAD) to London (LGW), October

10 dates in October, from $ 338. Book in one tap, or check whether to buy now or wait.

One-wayReturn
Dates, airline, and price
Dates Airline Price
24 Oct TAP
23 Oct TAP
25 Oct Icelandair
22 Oct TAP
19 Oct Frontier Airlines
30 Oct Icelandair
18 Oct Allegiant Air
27 Oct TAP
20 Oct TAP
26 Oct Breeze Airways
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Updated Oct 17, 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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