LHR to BOS: which side of the plane should you sit on?
London (LHR) to Boston (BOS) is a 5,240 km (3,256 mi), roughly 6h 40m westbound flight. Here is where the sun sits along that path, computed with the same astronomy as our live calculator.
On most daytime LHR to BOS departures the sun favors the left side — sit on the right (a window on the right) for shade.
Sun side by season and departure time
| Season | Morning (8 am) | Midday (1 pm) | Evening (6 pm) |
|---|---|---|---|
| March equinox | Left | Left | Left |
| June solstice | Left | Left | Right |
| September equinox | Left | Left | Both |
| December solstice | Left | Left | Night |
Frequently asked
Which side of the plane avoids the sun from LHR to BOS?
Across typical daytime departures, the sun predominantly hits the left side of the aircraft, so the right side stays shadier. Seat letters start at the left window, so choose the highest window letter (F on narrowbodies, K on many widebodies).
Which side has the sunset views on LHR to BOS flights?
For sunrise or sunset views, sit on the side the table marks as the sun side for your departure time — that is where the light is.
How long is the flight from LHR to BOS?
The great-circle distance is 5,240 km (3,256 mi), which works out to roughly 6h 40m in the air on this westbound routing. Winds and routing move the real block time around that estimate.
Does the date or departure time change the answer?
Yes — that is why the table shows both. The sun's path shifts with the season, and a morning departure can put the glare on the opposite side compared to an evening one. For a specific flight, the calculator samples the sun along the whole route for your exact date and time.