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Boston → San Francisco

BOS–SFO · Boston Logan International Airport to San Francisco International Airport

Best bet

Left side

Strong betOne side has clearly more to look at.

Niagara Falls is the main event, and it has company: 3 more worth looking at out the left.

Flight paths move around. Treat this as the better bet, not a promise.

What you might see

In flight order, with distance measured from the representative route.

BOS to SFO: where each landmark sits relative to the routeA diagram of the representative route running left to right, with the departure airport at the left and the arrival airport at the right. Landmarks on the left side of the aircraft are plotted above the route line and landmarks on the right side below it, each at its distance from the route. The numbered list below this diagram carries the same information as text.BOSSFOLEFT SIDERIGHT SIDE12345678
Distance from the route is to scale (up to 46 miles); the shaded ends are the 40-mile zones around each airport where the runway in use decides the view. Numbers match the list below. Hollow markers didn't count toward the recommendation.

  1. Finger Lakes

    LeftEarly26 mi off the route

    Finger Lakes is about 26 miles off the left, early in the flight.

    Distant possibility

  2. Niagara Falls

    LeftQuarter in8 mi off the route

    About a quarter of the way in, Niagara Falls sits roughly 8 miles to the left.

    Good possibility

  3. Uinta Mountains

    LeftThree quarters13 mi off the route

    Look left about three quarters of the way for Uinta Mountains, about 13 miles out.

    Good possibility

  4. Wasatch Range

    LeftThree quarters13 mi off the route

    Wasatch Range is about 13 miles off the left, about three quarters of the way.

    Good possibility

  5. Great Salt Lake

    RightThree quarters46 mi off the route

    About three quarters of the way, Great Salt Lake sits roughly 46 miles to the right.

    Distant possibility

  6. Lake Tahoe

    RightNear the end44 mi off the route

    Look right late in the flight for Lake Tahoe, about 44 miles out.

    Distant possibility

  7. San Francisco Bay

    Either sideNear the end1 mi off the route

    San Francisco Bay sits close enough to SFO that the runway in use and the procedure of the day decide whether it shows up at all.

    Runway dependent

  8. Golden Gate

    RightNear the end15 mi off the route

    Whether Golden Gate appears comes down to how you come into SFO, which is not something we can know in advance.

    Runway dependent

The sun

Flying soon? Add your date and departure time and we'll work out where the sun should be, and which side gets less of it.

Airport codes or city names. SEA, Seattle, and Seattle-Tacoma all work.

Skip the date and you still get the landmark answer. Add it and we work out where the sun will be, using the departure airport's local time.

The route we used

2,697 mi
Great-circle distance
281°
Course out of BOS
246°
Course into SFO
6
Landmarks that counted

That is the shortest path between the two airports, used as a representative corridor rather than a flight plan. The first and last 40 miles are treated as uncertain, because that part of the flight is shaped by the runway in use and the published departure or arrival procedure. Anything in those zones is listed and marked, never counted toward the recommendation.

Left and right, from where?

Left and right are from your perspective sitting in the cabin, facing the front of the aircraft. Seat letters are not a reliable guide to which side you are on, because aircraft are configured differently.

Why this isn't guaranteed

Flights don't follow the same path every day. Runway configuration, weather deviations, traffic, and air traffic control all move the track around, and none of it is knowable in advance. We also have nothing to say about cloud cover, which is the other thing standing between you and Mount Rainier. The full method.

Flying the other way?

San Francisco → BostonRight side

Calculated from scratch, not by flipping this one. The landmarks arrive in the opposite order, the sun is somewhere else entirely, and the answer changes with them.

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