CJU to GMP: which side of the plane should you sit on?
Jeju City (CJU) to Seoul (GMP) is a 451 km (280 mi), roughly 1h 2m northbound flight. Here is where the sun sits along that path, computed with the same astronomy as our live calculator.
On most daytime CJU to GMP 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 | Right | Left | Left |
| June solstice | Right | Left | Left |
| September equinox | Right | Left | Left |
| December solstice | Right | Left | Night |
What you’ll see on this flight
Right side wins here for both shade and views, so that is the easy pick if you want the better window.
Sit on the right for this one. The same side gets the sun shade and the best ground views.
Takeoff
On departure, depending on the runway in use, keep your eyes right. Jeju Island and Hallasan sit that side as you climb out, so you get an early look at the island and its volcanic peak.
En route
- 26m inRight →Gwangju
About half an hour in, Gwangju appears on the right as a compact city shape below you.
- 36m inRight →Jeonju
Around 35 minutes in, Jeonju stays on the right during descent.
- 44m inRight →Daejeon
A few minutes later, Daejeon comes into view on the right as the aircraft starts down.
- 46m inRight →Sejong
Near the same stretch, Sejong is also on the right, close enough that it feels tucked into the descent path.
Landing
On approach, depending on the runway in use, the right side stays the one to watch. You pass the Korean Peninsula, then Seoul on that side, with Suwon and Seongnam showing up before touchdown. Ganghwa Island sits to the left, so it is not the side for this window.
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 CJU to GMP?
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 CJU to GMP 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 CJU to GMP?
The great-circle distance is 451 km (280 mi), which works out to roughly 1h 2m in the air on this northbound 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 from Jeju to Gimpo?
Sit on the right. It gets the shade and the main views on this route.
What can I see on the Jeju to Seoul flight?
You get Jeju Island and Hallasan after takeoff, then Gwangju, Jeonju, Daejeon, Sejong, and finally Seoul on the right side.