Route · BOS → LHR
Flights from Boston to London
Boston to London Heathrow is one of the busiest transatlantic corridors, covering roughly 5,200 kilometres with a typical block time just over six and a half hours westbound winds aside. American Airlines and United are the dominant full-service carriers on the route, generally operating Boeing 777s and 787 Dreamliners, while British Airways — though not tracked here — holds a large share of frequencies; the listed carriers suggest strong codeshare activity feeding into the route from wider networks. A practical note worth knowing: most transatlantic arrivals at Heathrow land into Terminal 3 or 5, and passengers connecting onward should allow at least ninety minutes given the terminal transfers and security formalities involved. For fares, shoulder-season windows in late January through March and again in October typically offer the most flexibility, while premium-cabin award availability tends to open up on midweek departures booked well in advance.
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Cheapest dates to fly
Live prices · powered by AviasalesThe calendar below pulls live fares from our search partner for Boston (BOS) → London (LHR). Use the year view… to spot the cheapest week to fly, the day-of-week patterns most travellers miss, and any shoulder-season dips worth shifting your trip around. Prices refresh every few hours, so what you see is what your booking page should look like a moment later — click any date to jump straight to the fare on Aviasales.
Airlines on this route
8 carriersThe 8 carriers we currently track on the Boston–London route, from full-service flag carriers to low-cost competitors. Tap any airline for its full profile, baggage… rules, fleet context, and a live fare search pre-filtered to that carrier — useful if you're loyal to a frequent-flyer programme, want to compare onboard product on the same dates, or are weighing a cheaper one-stop against a pricier nonstop.
Flights from Boston to London
Live schedule · powered by AviasalesBelow is the published weekly schedule for nonstop and one-stop services from Boston to London — the actual flight numbers, departure and arrival times your… booking page will pull from. Use it to plan around departure preferences (early morning vs late evening), see which carriers fly on which weekdays, or pick a connection that lets you sleep in your own bed before a long-haul leg. Click any row to load it directly in the search.
Airport guides
Quick links into the airport profiles at both ends of the route. Each guide covers terminal layout, the airlines that base hubs at BOS and… LHR, the other routes those airports serve, and the ground-transit options most travellers wish they'd read about before landing — the practical context you only really need to know once you've booked, but want to skim before you do.