Flights Washington → London — September 15, 2026

One way · Economy · 1 adult · price per person

The cheapest itinerary observed for Tuesday, September 15, 2026 on the Washington–London route: 2 stops itinerary (3 flights) via Boston Logan (BOS) and Orlando International (MCO), from Washington Reagan National (DCA) to London Gatwick (LGW), first flight JetBlue B61154, departs 3:41 PM, arrives 10:00 AM 2 days later, total travel time 37h 19m including layovers, flight time 13h 58m (layovers excluded), $410 per person. Fare as listed by Aviasales: carry-on bag included, checked bag not included, changes not allowed, non-refundable. Price found in an Aviasales search on September 7, 2026 and read by AirSource on September 10, 2026, 19:00 UTC: it is not guaranteed and is confirmed on Aviasales at booking time. The cheapest direct flight observed: British Airways BA216, from Washington Dulles (IAD) to London Heathrow (LHR), departs 5:45 PM, arrives 6:20 AM the next day, direct, 7h 35m, $473 per person. Fare as listed by Aviasales: carry-on bag included, checked bag not included, changes not allowed, non-refundable.