Cheapest€260.33
- Jin Air JA609018:324h 34m23:06Vientiane VTESeoul ICN
Door to door 7h 44mCO2 491.1 kgChanges 0Fixed, no changes
Vientiane to Seoul flight
Flights from Vientiane to Seoul start at €309.30 and take 7h 44m at their fastest.
The Flights from Vientiane to Seoul starts at €309.30 and takes 7h 44m door to door, run by 5 operators over 3,318 km, with around 24 departures a day. Fares bottom out about 45 days before departure.
- 7h 44mDoor to door
- 4h 34mMoving
- €309.30From
- 491.1 kgCO2
The cheapest and the fastest on September 29, 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€361.22
- Air Busan AB141310:244h 34m14:58Vientiane VTESeoul GMP
Door to door 7h 44mCO2 491.1 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 | Fastest |
|---|---|---|
 Jeju Air | €289.24 | 7h 45m |
 Air Busan | €281.57 | 7h 44m |
| Jin Air | €260.33 | 7h 44m |
| Lao Airlines | €282.16 | 7h 44m |
 Tway Airlines | €265.05 | 7h 45m |
That is the traveling done. What happens after you walk out into Seoul is not something we sell.
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When to book Vientiane to Seoul
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €323.4690 days
- €210.1860 days
- €205.4645 days
- €220.8030 days
- €325.8221 days
- €394.8514 days
- €521.117 days
- €476.863 days
- €670.381 days
- Cheapest lead time
- Fares bottom out around 45 days ahead, at €205.46.
- How much it moves
- The gap between the cheapest and most expensive lead time is 226 percent. The most expensive point is €670.38, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 45 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.
- €372.43Sun
- €324.05Mon
- €309.30Tue
- €327.59Wed
- €417.86Thu
- €383.05Fri
- €394.85Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Vientiane
Air
- VTE
Seoul
Air
- ICN
- GMP
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- Direct or connecting
- 83% of the services we sell on this corridor run through without a change. The remaining 17% involve one connection.
- How far it really runs
- The route covers 3,318 km against 3,222 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Guangzhou, Hong Kong, Hanoi, Kunming. The gap between arriving and leaving is 53 minutes, of which about 5 is walking.
- If the connection is missed
- The tightest connection we sell here has a 18 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
- First and last departure
- The first service of the day leaves Vientiane at 06:16 and the last at 18:53, across 24 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Vientiane to Seoul
The questions people actually ask about this trip, 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 Vientiane to Seoul take?
The Flight from Vientiane to Seoul takes 7h 44m door to door, of which 4h 34m is spent moving. The route runs 3,318 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 Vientiane to Seoul cost?
The Flight from Vientiane to Seoul starts at €309.30 for one passenger, checked on September 12, 2026. A typical fare is €318.74. 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 Vientiane to Seoul?
5 operators run the Flight from Vientiane to Seoul: Jeju Air, Air Busan, Jin Air, Lao Airlines, Tway Airlines. Between them they file around 24 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 Vientiane to Seoul use?
The Flight from Vientiane to Seoul leaves from Vientiane VTE and arrives at Seoul GMP. 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 Vientiane to Seoul?
Fares for the Flight from Vientiane to Seoul bottom out around 45 days ahead, at €205.46. The gap between the cheapest and most expensive lead time across the window is 226 percent, measured on September 12, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Vientiane to Seoul produce?
The Flight from Vientiane to Seoul produces about 491.1 kg of CO2 per passenger over 3318 km, which works out at roughly 148 grams per passenger kilometer. That figure is for the whole journey and for one traveler, 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 modeled 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 Vientiane to Seoul on September 12, 2026: 3318 km of route against 3222 km in a straight line, 24 services a day, 5 operators, a cheapest fare of €309.30, and 7h 44m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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