AirHint found the following cheapest one-way flights from Washington (DCA) to London (LGW) in December 2025 (see full year).
One-Way flights
| 12 Dec | jetBlue | ||
| 14 Dec | jetBlue | ||
| 06 Dec | jetBlue | ||
| 05 Dec | jetBlue | ||
| 10 Dec | jetBlue | ||
| 08 Dec | jetBlue | ||
| 31 Dec | Scandinavian Airlines | ||
| 28 Dec | Air Canada | ||
| 16 Dec | jetBlue | ||
| 22 Dec | jetBlue |
Also check the deals for return flights from Washington to London in December.
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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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