Flights Boston → London — September 12, 2026

One way · Economy · 1 adult · price per person

The cheapest itinerary observed for Saturday, September 12, 2026 on the Boston–London route: 2 stops itinerary (3 flights) via Newark Liberty (EWR) and Chicago O'Hare (ORD), from Boston Logan (BOS) to London Heathrow (LHR), first flight United Airlines UA570, departs 7:30 AM, arrives 6:45 AM the next day, total travel time 18h 15m including layovers, flight time 12h 27m (layovers excluded), $410 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, 19:00 UTC: it is not guaranteed and is confirmed on Aviasales at booking time. The cheapest direct flight observed: JetBlue B61620, from Boston Logan (BOS) to London Heathrow (LHR), departs 6:38 PM, arrives 6:30 AM the next day, direct, 6h 52m, $421 per person. Fare as listed by Aviasales: carry-on bag not included (personal item only), checked bag not included, changes not allowed, non-refundable.