AirHint found the following cheapest one-way flights from Washington (IAD) to London (LGW) in February 2026 (see full year).
One-Way flights
| 23 Feb | Frontier Airlines | ||
| 01 Feb | Frontier Airlines | ||
| 19 Feb | Frontier Airlines | ||
| 15 Feb | TAP | ||
| 07 Feb | Frontier Airlines | ||
| 03 Feb | TAP | ||
| 04 Feb | TAP | ||
| 25 Feb | Icelandair | ||
| 11 Feb | Scandinavian Airlines | ||
| 26 Feb | TAP |
Also check the deals for return flights from Washington to London in February.
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