Cheapest€642.06
- British Airways BA275919:5513h 9m01:04Seoul ICNLondon LHR
Door to door 16h 19mCO2 1350.2 kgChanges 0Fixed, no changes
Seoul to London flight
Flights from Seoul to London start at €642.06 and take 15h 1m at their fastest.
Check dates and fares
Fares and seats move by the day. Price Seoul to London on the date you actually want, rather than on the date this page was built.
The Flights from Seoul to London starts at €642.06 and takes 15h 1m door to door, run by 4 operators over 9,123 km, with around 24 departures a day. Fares bottom out about 60 days before departure.
- 15h 1mDoor to door
- 11h 51mMoving
- €826.14 to €2,041.54From
- 06:10 to 20:10First and last departure
- 24Per day
- 1350.2 kgCO2
First and last are taken from the services we sell on 6 October 2026. The return direction keeps its own timetable and is not these times reversed.
€826.14 to €2,041.54 for one passenger across the 14 departure dates priced here. The low end is one day, not every day. Worked out from this corridor rather than held for anybody. The operator sets the price on the day.
Fares by date
What this journey usually costs, by departure date. It shows which days run dearer.
Typical fares
- about €2,041.54Thu17
- about €1,594.32Fri18
- about €1,632.67Sat19
- about €1,224.98Sun20
- about €1,145.92Mon21
- about €1,032.05Tue22
- about €1,118.19Wed23
- about €1,124.68Thu24
- about €1,050.93Fri25
- about €1,116.42Sat26
- about €999.01Sun27
- about €863.90Mon28
- about €826.14Tue29
- about €885.73Wed30
Based on what this route has cost recently. The operator sets the price on the day, and the live fare is confirmed when you book.
The cheapest and the fastest on 6 October 2026
Fastest€656.81
- Asiana Airlines AA667814:2611h 51m18:17Seoul ICNLondon LHR
Door to door 15h 1mCO2 1350.2 kgChanges 0Fixed, no changes
Airlines
| Operator | From | Fastest |
|---|---|---|
 Korean Air | €682.18 | 15h 2m |
 Asiana Airlines | €656.81 | 15h 1m |
 Virgin Atlantic Airways | €698.70 | 15h |
 British Airways | €642.06 | 15h |
The flight gets you into London. It does not get you a bed, and neither do we.
A room in London for the night the flight gets in
Sort by distance from London St Pancras International and you can see which places are ten minutes on foot and which are not.
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When to book Seoul to London
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €672.7490 days
- €611.3860 days
- €780.1245 days
- €689.8530 days
- €698.7021 days
- €885.7314 days
- €1,118.197 days
- €1,632.673 days
- €2,041.541 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €611.38.
- How much it moves
- The gap between the cheapest and dearest lead time is 234 percent. The dearest point is €2,041.54, 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.
- €999.01Sun
- €863.90Mon
- €826.14Tue
- €885.73Wed
- €1,124.68Thu
- €1,050.93Fri
- €1,116.42Sat
Where you leave from and where you arrive
Seoul
Air
- ICN
- GMP
London
Air
- LHR
- LGW
- STN
- LTN
- LCY
- SEN
What the journey looks like
- How far it really runs
- The route covers 9,123 km against 8,857 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 06:10 and the last at 20:10, across 24 departures The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Seoul to London
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 London take?
The Flight from Seoul to London takes 15h 1m door to door, of which 11h 51m is spent moving. The route runs 9,123 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 London cost?
The Flight from Seoul to London starts at €642.06 for one passenger, as of 16 September 2026. A typical fare is €815.82. 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 London?
4 operators run the Flight from Seoul to London: Korean Air, Asiana Airlines, Virgin Atlantic Airways, British Airways. 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 Seoul to London use?
The Flight from Seoul to London leaves from Seoul ICN and arrives at London LHR. 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 London?
Fares for the Flight from Seoul to London bottom out around 60 days ahead, at €611.38. The gap between the cheapest and dearest lead time across the window is 234 percent, measured on 16 September 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Seoul to London produce?
The Flight from Seoul to London produces about 1350.2 kg of CO2 per passenger over 9123 km, which works out at roughly 148 grams per passenger kilometre. That figure is for the whole journey and for one traveller, not for the vehicle.
Where these numbers come from
Places, coordinates, operators, which operator serves which pair, and every distance on this page are real and come from open data. Where a corridor has a filed timetable the departure times are real too, and ferry fares are the prices the operators publish themselves.
Derived from service area No carrier record names this exact pair. The operators listed publish a service area covering both places at a distance their mode plausibly carries people, which is evidence that the corridor is served and not evidence of a specific service. Pages state which, because presenting the two as the same thing would be dishonest.
Where no operator publishes a fare for a corridor, the price here is our own estimate, worked out from the real distance and the real operator through a fare curve that follows lead time, day of the week and season. It tells you roughly what the journey costs. It is not a seat anyone has agreed to sell, and the payment step will not take it.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Seoul to London on 16 September 2026: 9123 km of route against 8857 km in a straight line, 24 services a day, 4 operators a cheapest fare of €642.06, and 15h 1m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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London is large, and the road in from LHR can take longer than the last hour of the flight. Cars are not our business.
A car waiting when you land in London
Settled in advance, so the ride into London costs what it said it would rather than what the rank says.
Book a transfer from LHR with Welcome PickupsOr check Daytrip
Partner links. We do not operate transfers. We earn a commission on a booking, and the fare is the same as going direct.