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Ontario → Portland

ONT–PDX · Ontario International Airport to Portland International Airport

Best bet

Either side

Both sides workThe two sides come out close to level.

Both sides have something going for them, and the totals come out close enough that picking one would be a coin flip with extra steps.

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.

ONT to PDX: 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.ONTPDXLEFT SIDERIGHT SIDE12345678910
Distance from the route is to scale (up to 79 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. Mount Whitney

    RightQuarter in14 mi off the route

    Mount Whitney is about 14 miles off the right, about a quarter of the way in.

    Strong candidate

  2. Half Dome

    LeftQuarter in27 mi off the route

    About a quarter of the way in, Half Dome sits roughly 27 miles to the left.

    Distant possibility

  3. Mono Lake

    Either sideQuarter in6 mi off the route

    Mono Lake passes almost directly beneath about a quarter of the way in, which is the one place a window seat can't help you.

    Good possibility

  4. Lake Tahoe

    LeftHalfway24 mi off the route

    Lake Tahoe is about 24 miles off the left, around the halfway mark.

    Good possibility

  5. Mount Shasta

    LeftThree quarters79 mi off the route

    About three quarters of the way, Mount Shasta sits roughly 79 miles to the left.

    Distant possibility

  6. Crater Lake

    LeftThree quarters39 mi off the route

    Look left about three quarters of the way for Crater Lake, about 39 miles out.

    Distant possibility

  7. Three Sisters

    Either sideNear the end4 mi off the route

    Three Sisters passes almost directly beneath late in the flight, which is the one place a window seat can't help you.

    Good possibility

  8. Mount Jefferson

    RightNear the end15 mi off the route

    Late in the flight, Mount Jefferson sits roughly 15 miles to the right.

    Good possibility

  9. Mount Hood

    RightNear the end36 mi off the route

    Look right late in the flight for Mount Hood, about 36 miles out.

    Good possibility

  10. Columbia River Gorge

    RightNear the end39 mi off the route

    Whether Columbia River Gorge appears comes down to how you come into PDX, 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

839 mi
Great-circle distance
343°
Course out of ONT
340°
Course into PDX
7
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?

Portland → OntarioEither 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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