Route · LHR → BOS
Flights from London to Boston
London Heathrow to Boston Logan is one of the busiest transatlantic corridors, covering roughly 5,241 km great-circle with a typical block time just over six and a half hours westbound, often stretching slightly longer against prevailing headwinds. Among the carriers tracked on this pairing, American Airlines and British Airways (the latter via its oneworld alliance presence at Heathrow) dominate with widebody equipment — typically Boeing 777s or 787 Dreamliners — while Delta and United also hold meaningful frequency. A practical note worth flagging: Boston Logan sits unusually close to downtown, with the Silver Line bus offering a free connection from the international terminal directly into South Station, making ground transit genuinely painless. On fares, shoulder-season windows in late January through early March and again in October tend to yield the most competitive economy pricing, while premium-cabin award availability is often strongest on midweek departures.
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Cheapest dates to fly
Live prices · powered by AviasalesThe calendar below pulls live fares from our search partner for London (LHR) → Boston (BOS). 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 London–Boston 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 London to Boston
Live schedule · powered by AviasalesBelow is the published weekly schedule for nonstop and one-stop services from London to Boston — 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 LHR and… BOS, 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.