Cheapest€33.18
- Asiana Airlines AA175712:4152m13:33Seoul GMPUlsan USN
Door to door 4h 2mCO2 78.0 kgChanges 0Fixed, no changes
Seoul to Ulsan flight
Flights from Seoul to Ulsan start at €37.31 and take 3h 59m at their fastest.
The Flights from Seoul to Ulsan starts at €37.31 and takes 3h 59m door to door, run by 4 operators over 317 km, with around 20 departures a day. Fares bottom out about 60 days before departure.
- 3h 59mDoor to door
- 49mMoving
- €37.31From
- 78.0 kgCO2
The cheapest and the fastest on 28 September 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€41.44
- Air Busan AB580719:1749m20:06Seoul ICNUlsan USN
Door to door 3h 59mCO2 78.0 kgChanges 0Fixed, no changes
Airlines
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From |
|---|---|
 Air Busan | €33.77 |
 Korean Air | €33.18 |
| Jin Air | €33.18 |
 Asiana Airlines | €33.18 |
The journey ends at Ulsan Station. Everything past the barriers belongs to somebody else, the rooms included.
Where to sleep in Ulsan
Filter by neighbourhood and by price per night, and the map tells you what is a walk and what is a taxi.
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When to book Seoul to Ulsan
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €37.9090 days
- €31.4160 days
- €31.4145 days
- €31.4130 days
- €37.3121 days
- €46.7514 days
- €55.017 days
- €55.013 days
- €70.351 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €31.41.
- How much it moves
- The gap between the cheapest and dearest lead time is 124 percent. The dearest point is €70.35, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 60 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €43.21Sun
- €39.08Mon
- €37.31Tue
- €39.67Wed
- €47.93Thu
- €46.75Fri
- €46.75Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Seoul
Air
- ICN
- GMP
Ulsan
Air
- USN
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- How far it really runs
- The route covers 317 km against 307 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- First and last departure
- The first service of the day leaves Seoul at 06:24 and the last at 19:36, across 20 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Seoul to Ulsan
The questions people actually ask about this journey, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from Seoul to Ulsan take?
The Flight from Seoul to Ulsan takes 3h 59m door to door, of which 49m is spent moving. The route runs 317 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from Seoul to Ulsan cost?
The Flight from Seoul to Ulsan starts at €37.31 for one passenger, checked on 12 September 2026. A typical fare is €40.56. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Seoul to Ulsan?
4 operators run the Flight from Seoul to Ulsan: Air Busan, Korean Air, Jin Air, Asiana Airlines. Between them they file around 20 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from Seoul to Ulsan use?
The Flight from Seoul to Ulsan leaves from Seoul ICN and arrives at Ulsan USN. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from Seoul to Ulsan?
Fares for the Flight from Seoul to Ulsan bottom out around 60 days ahead, at €31.41. The gap between the cheapest and dearest lead time across the window is 124 percent, measured on 12 September 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Seoul to Ulsan produce?
The Flight from Seoul to Ulsan produces about 78.0 kg of CO2 per passenger over 317 km, which works out at roughly 246 grams per passenger kilometre. That figure is for the whole journey and for one traveller, not for the vehicle.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modelled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Seoul to Ulsan on 12 September 2026: 317 km of route against 307 km in a straight line, 20 services a day, 4 operators, a cheapest fare of €37.31, and 3h 59m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.