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

10 dates in October, from $ 301. 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
22 Oct TAP
17 Oct TAP
16 Oct TAP
27 Oct TAP
26 Oct Icelandair
31 Oct Icelandair
21 Oct Aer Lingus
13 Oct TAP
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Cheapest deals for the full year

Deals for return flights from Washington to London in October.

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Updated Oct 12, 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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