BOS to SFO: which side of the plane should you sit on?
Boston (BOS) to San Francisco (SFO) is a 4,341 km (2,697 mi), roughly 5h 36m westbound flight. Here is where the sun sits along that path, computed with the same astronomy as our live calculator.
On most daytime BOS to SFO 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 | Left |
| December solstice | Left | Left | Night |
What you’ll see on this flight
Views are split on this route, so they do not decide the seat. Pick the right side for shade.
This route does not pick a clear views side. Sit on the right for shade, then enjoy a mix of left and right views as you cross the country.
Takeoff
On departure from BOS, the left side gets the early look at Boston, and you may pass close to it depending on the runway in use. A few minutes in, Lake Chaubunagungamaug and Worcester sit to the left too, while Massachusetts Bay is off to the right.
En route
- 20m in← LeftCatskill Mountains
About 20 minutes in, the Catskill Mountains are on the left. You get a broad, slanted look at the range as you climb.
- 46m inRight →Lake Ontario
Near 45 minutes in, Lake Ontario is on the right. It reads as a wide blue sheet, with Toronto farther to the right a few minutes later.
- 1h 03m in← LeftLake Erie
Around an hour in, Lake Erie stays on the left. Buffalo comes up on that side soon after, so the left window keeps working.
- 1h 15m inRight →Lake Huron
About 75 minutes in, Lake Huron is on the right. It is a distant water view rather than a close pass.
- 4h 24m inRight →Great Salt Lake
Roughly 4 and a half hours in, the Great Salt Lake is on the right. It is one of the route’s late, easy-to-spot water views.
Landing
On arrival into SFO, the right side gets the strongest finish, with the Golden Gate Bridge, the Golden Gate, Alcatraz Island, and San Francisco itself on that side. Depending on the runway in use, San Jose may sit off to the left a little earlier on descent.
Sides and timings are computed from this route’s geometry. What you actually see depends on weather, air-traffic routing, and the runway in use on the day.
Frequently asked
Which side of the plane avoids the sun from BOS to SFO?
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 BOS to SFO 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 BOS to SFO?
The great-circle distance is 4,341 km (2,697 mi), which works out to roughly 5h 36m 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.
Which side of the plane should I sit on BOS to SFO?
Pick the right side if you want shade. Views are mixed, so the route does not clearly favor one side for scenery.
What will I see on a BOS to SFO flight?
You get early Boston-area views, then a mix of Great Lakes, mountain, and California approach sights. The strongest landing views are on the right.