GMP to CJU: which side of the plane should you sit on?
Seoul (GMP) to Jeju City (CJU) is a 451 km (280 mi), roughly 1h 2m southbound flight. Here is where the sun sits along that path, computed with the same astronomy as our live calculator.
On most daytime GMP to CJU 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
The left side wins on both views and shade.
Sit on the left for the best land views, and it is the shady side too. This southbound hop stays busy with cities and ends with Jeju and Hallasan on approach.
Takeoff
After takeoff, depending on the runway in use, the left side quickly picks up Seoul and then the Korean Peninsula. Suwon and Seongnam follow in the climb, all on your side.
En route
- 16m in← LeftSejong
About 16 minutes in, Sejong sits on the left. It reads as a compact city shape from above.
- 18m in← LeftDaejeon
Around 18 minutes in, Daejeon is also on the left. You get a clear city patch, not a long look.
- 24m in← LeftDaegu
About 24 minutes in, Daegu stays on the left during cruise. It is one of the bigger city passes on this route.
- 26m in← LeftJeonju
Two minutes later, Jeonju is on the left as well. Keep looking there if you want another city view.
- 36m in← LeftGwangju
By about 36 minutes in, Gwangju appears on the left as you start down. It is a late highlight before the island approach.
Landing
On descent, depending on the runway in use, Jeju Island comes up on the left with Hallasan beside it. The island fills the window near the end, so keep the left side if you want the strongest finish.
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 GMP to CJU?
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 GMP to CJU 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 GMP to CJU?
The great-circle distance is 451 km (280 mi), which works out to roughly 1h 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 from GMP to CJU?
Sit on the left. That side gets the main city views and it is also the shade side.
What will I see near Jeju on approach?
On the left, you get Jeju Island and Hallasan near landing, depending on the runway in use.