Flights London → Boston — September 14, 2026

One way · Economy · 1 adult · price per person

The cheapest itinerary observed for Monday, September 14, 2026 on the London–Boston route: 2 stops itinerary (3 flights) via Lisbon (LIS) and Barcelona (BCN), from London Gatwick (LGW) to Boston Logan (BOS), first flight TAP Air Portugal TP1337, departs 4:25 PM, arrives 3:28 PM 2 days later, total travel time 52h 3m including layovers, flight time 13h 23m (layovers excluded), $888 per person. Fare as listed by Aviasales: carry-on bag not included (personal item only), checked bag not included, changes not allowed, non-refundable. Price found in an Aviasales search on September 10, 2026 and read by AirSource on September 10, 2026, 19:03 UTC: it is not guaranteed and is confirmed on Aviasales at booking time. The cheapest direct flight observed: JetBlue B61621, from London Heathrow (LHR) to Boston Logan (BOS), departs 8:40 AM, arrives 11:19 AM, direct, 7h 39m, $1,259 per person. Fare as listed by Aviasales: carry-on bag included, checked bag not included, changes not allowed, non-refundable.