Flights from London to Washington, D.C. from $ 750*
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1 Passenger, Economy
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Featured daily fares for flights from London (LHR) to Washington, D.C. (IAD)
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More United deals on London (LHR) to Washington, D.C. (IAD) flights
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| London (LHR) | Washington, D.C. (IAD) | Roundtrip | Economy | 05/14/26 - 06/15/26 | from $ 750 Viewed: 1 day ago |
| London (LHR) | Washington, D.C. (IAD) | Roundtrip | Economy | 05/05/26 - 05/26/26 | from $ 750 Viewed: 1 day ago |
| London (LHR) | Washington, D.C. (IAD) | Roundtrip | Economy | 05/11/26 - 06/04/26 | from $ 750 Viewed: 1 day ago |
| London (LHR) | Washington, D.C. (IAD) | Roundtrip | Economy | 05/07/26 - 05/23/26 | from $ 790 Viewed: 23 hours ago |
| London (LHR) | Washington, D.C. (IAD) | Roundtrip | Economy | 05/18/26 - 06/09/26 | from $ 795 Viewed: 23 hours ago |
| London (LHR) | Washington, D.C. (IAD) | Roundtrip | Economy | 05/22/26 - 05/26/26 | from $ 837 Viewed: 13 hours ago |
| London (LHR) | Washington, D.C. (IAD) | Roundtrip | Economy | 05/07/26 - 05/09/26 | from $ 871 Viewed: 12 hours ago |
| London (LHR) | Washington, D.C. (IAD) | Roundtrip | Economy | 05/05/26 - 05/09/26 | from $ 831 Viewed: 6 hours ago |
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.
