IAH to CUN: which side of the plane should you sit on?
Houston (IAH) to Cancún (CUN) is a 1,307 km (812 mi), roughly 2h 2m southbound flight. Here is where the sun sits along that path, computed with the same astronomy as our live calculator.
On most daytime IAH to CUN 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 | Left | Right | Right |
| June solstice | Left | Right | Right |
| September equinox | Left | Right | Right |
| December solstice | Left | Right | Night |
What you’ll see on this flight
Views don’t decide this route. Follow the shade side instead: left gets the sun off your window, while the right side is brighter.
This route does not favor one side for views. The shade call comes from the sun, so use that first. You do get a quick city look on departure and a final island-and-city stretch on arrival.
Takeoff
Just after takeoff from IAH, depending on the runway in use, Houston sits off the right side about a minute in. It is a quick climb-side look, not a long sightseeing run.
Landing
On descent into CUN, depending on the runway in use, Cancun comes up nearly under the left side about a minute before landing. Cozumel Island appears off the right side at the very end.
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 IAH to CUN?
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 IAH to CUN flights?
For sunset views, flip the advice: on evening departures the sun sits on the right side of this route, so that is the side with the show.
How long is the flight from IAH to CUN?
The great-circle distance is 1,307 km (812 mi), which works out to roughly 2h 2m in the air on this southbound 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 should I sit on for IAH to CUN?
Pick the left side for shade. Views do not break the tie on this route.
What will I see on takeoff and landing from IAH to CUN?
Houston is off the right side shortly after departure. Near arrival, Cancun is nearly under the left side, with Cozumel Island off the right side at the end.