Flights Boston → London — September 15, 2026

One way · Economy · 1 adult · price per person

The cheapest itinerary observed for Tuesday, September 15, 2026 on the Boston–London route: 1 stop itinerary (2 flights) via Chicago O'Hare (ORD), from Boston Logan (BOS) to London Heathrow (LHR), first flight United Airlines UA463, departs 12:37 PM, arrives 6:45 AM the next day, total travel time 13h 8m including layovers, flight time 11h 12m (layovers excluded), $414 per person. Fare as listed by Aviasales: carry-on bag not included (personal item only), checked bag not included, changes allowed for a fee, 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: Virgin Atlantic VS5938, from Boston Logan (BOS) to London Heathrow (LHR), departs 9:30 PM, arrives 9:15 AM the next day, direct, 6h 45m, $429 per person. Fare as listed by Aviasales: carry-on bag included, checked bag not included, changes allowed for a fee, non-refundable.