SFO to BOS: which side of the plane should you sit on?
San Francisco (SFO) to Boston (BOS) is a 4,341 km (2,697 mi), roughly 5h 36m eastbound flight. Here is where the sun sits along that path, computed with the same astronomy as our live calculator.
On most daytime SFO to BOS departures the sun favors the right side — sit on the left (an A seat) for shade.
Sun side by season and departure time
| Season | Morning (8 am) | Midday (1 pm) | Evening (6 pm) |
|---|---|---|---|
| March equinox | Right | Right | Left |
| June solstice | Right | Left | Left |
| September equinox | Right | Right | Left |
| December solstice | Right | Right | Night |
Frequently asked
Which side of the plane avoids the sun from SFO to BOS?
Across typical daytime departures, the sun predominantly hits the right side of the aircraft, so the left side stays shadier. Seat letters start at the left window, so choose an A seat.
Which side has the sunset views on SFO to BOS flights?
For sunset views, flip the advice: on evening departures the sun sits on the left side of this route, so that is the side with the show.
How long is the flight from SFO to BOS?
The great-circle distance is 4,341 km (2,697 mi), which works out to roughly 5h 36m in the air on this eastbound 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.