Cheapest€663.30
- Alaska Airlines AA535109:0712h 20m21:27Seoul GMPSeattle SEA
Door to door 15h 30mCO2 1268.7 kgChanges 0Fixed, no changes
Travelling from Seoul to Seattle costs €663.30 at the cheapest and takes 14h 19m door to door at the fastest, across 1 mode and 3 operators. The route covers 8,572 km. Cheapest is by flight, fastest is by flight.
At a glance
- Distance
- 8,572 km
- Fastest
- 14h 19m
- Average
- 15h 11m
- Services per day
- 22
- Cheapest
- €663.30
- CO2 per passenger
- 1268.7 kg
Every way to make this journey
Journey times below are door to door, so they include getting to the terminal and away from it at the other end. Fares are the cheapest we currently sell on 29 September 2026.
| Mode | Door to door | Moving | At the ends | From | CO2 | Per day |
|---|---|---|---|---|---|---|
| Flight | 14h 22m | 11h 12m | 3h 10m | €773.04 | 1268.7 kg | 22 |
- 14h 22mFastest, by Flight
- €773.04Cheapest, by Flight
- 1268.7 kgLowest CO2, by Flight
- 8,572 kmDistance travelled
The cheapest and the fastest on 29 September 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€823.78
- Asiana Airlines AA269706:0311h 12m17:15Seoul ICNSeattle BFI
Door to door 14h 22mCO2 1268.7 kgChanges 0Fixed, no changes
Lowest CO2€904.61
- Air Canada AC506807:3011h 31m19:01Seoul ICNVancouver YVR
- Amtrak A818819:581h 31m21:29Vancouver Pacific CentralSeattle King Street
Changes at Vancouver, with 57 minutes between services and a walk of about 14 minutes.
Door to door 15h 56mCO2 1250.4 kgChanges 1Fixed, no changes
Today's real departures
Live from the operators' own published timetables, through the open transit feeds they publish. Times and services are real. Fares are modelled until our booking connectors are live.
Checking the live timetables.
Live from the operators' own published timetables, through the open transit feeds they publish. Times and services are real. Fares are modelled until our booking connectors are live.
Prices over the next three weeks
Live from our own engine, refreshed on every request. The cheapest days for each way of travelling are marked.
| Cheapest fare by mode and day for Seoul to Seattle | Mon14 Sept | Tue15 Sept | Wed16 Sept | Thu17 Sept | Fri18 Sept | Sat19 Sept | Sun20 Sept | Mon21 Sept | Tue22 Sept | Wed23 Sept | Thu24 Sept | Fri25 Sept | Sat26 Sept | Sun27 Sept |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flight | €1,265.69 | €1,197.84 | €1,037.36 | €1,312.89 | €1,227.93 | €1,273.36 | €932.93 | €868.62 | €786.61 | €855.05 | €1,098.13 | €1,002.55 | €1,018.48 | €773.04 |
Cheapest day: 2026-09-29 · €663.30
Arriving in September changes what you want from a room in Seattle. It is not a thing we sell, so here is who does.
Looking for somewhere to stay in Seattle?
The search opens on Seattle with your nights already filled in, so it is one step to a real price.
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When to book Seoul to Seattle
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €816.1190 days
- €669.7960 days
- €574.8045 days
- €521.7030 days
- €712.8621 days
- €773.0414 days
- €932.937 days
- €1,037.363 days
- €1,265.691 days
- Cheapest lead time
- Fares bottom out around 30 days ahead, at €521.70.
- How much it moves
- The gap between the cheapest and dearest lead time is 143 percent. The dearest point is €1,265.69, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 30 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Book now Fares on this route are lowest around 30 days ahead. You are inside that window.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €773.04Sun
- €868.62Mon
- €786.61Tue
- €855.05Wed
- €1,098.13Thu
- €1,002.55Fri
- €1,018.48Sat
How the fare moves month by month
The same journey priced on the fifteenth of each of the next six months.
- €1,197.84Sept
- €712.86Oct
- €617.28Nov
- €625.54Dec
- €619.05Jan
- €519.34Feb
The route
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
- 82% of the services we sell on this corridor run through without a change. The remaining 18% involve one connection.
- How far it really runs
- The route covers 8,572 km against 8,322 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 Vancouver, Tokyo, Portland, Anchorage. The gap between arriving and leaving is 57 minutes, of which about 14 is walking.
- If the connection is missed
- The tightest connection we sell here has a 17 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 Seoul at 06:03 and the last at 19:45, across 22 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Seoul
Rail
- Seoul Station
- Guri Station
- Mangu Station
Coach
- Seoul Express Bus Terminal
- East Seoul Bus Terminal
Air
- ICN
- GMP
Ferry
- Ferry
- 한강버스 서울숲선착장
Seattle
Rail
- Seattle King Street
- Westlake
- Union Station
Coach
- Seattle King Street
- Seattle Greyhound Station
Air
- SEA
- BFI
Ferry
- Seattle
- Seattle Waterfront
Who runs this route
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From |
|---|---|
 Alaska Airlines | €663.30 |
 Asiana Airlines | €666.84 |
 Korean Air | €669.20 |
What the fare is made of
Every part of the total, so the number at checkout is the number here.
| Part | Amount | Share |
|---|---|---|
| Operator fare | €554.50 | 84% |
| Taxes | €99.81 | 15% |
| Supplier fees | €7.00 | 1% |
| Our service fee | €1.99 | 0% |
| Total you pay | €663.30 | 100% |
A day in Seattle carrying a suitcase is a shorter day than it needs to be. We do not store bags.
Where to leave your bags in Seattle
Most of the points near Seattle King Street open before the first train and shut after the last one.
Check Seattle on StasherOr try Bounce
Partner links. We do not run these networks. We earn a commission on a booking, and the price is the same as going direct.
Questions about Seoul to Seattle
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 it take to get from Seoul to Seattle?
The fastest journey from Seoul to Seattle takes 14h 19m door to door, of which 11h 12m is spent moving, on the flight. Most services take around 15h 11m, because that average includes slower stopping services and journeys with a connection. Times include reaching the terminal and leaving it at the far end.
How much does it cost to travel from Seoul to Seattle?
The cheapest fare from Seoul to Seattle is €663.30, checked on 13 September 2026. A typical fare across the next three weeks is €1,085.45. Both figures are the total for one passenger, including taxes, supplier fees and our service fee, so nothing is added at checkout.
What is the cheapest way to get from Seoul to Seattle?
The cheapest way from Seoul to Seattle is by flight, at €773.04 for one passenger on 29 September 2026. That journey takes 14h 22m door to door. Cheaper is rarely faster on this corridor, and the comparison table on this page shows what each mode costs against what it saves.
When should I book Seoul to Seattle?
Fares from Seoul to Seattle bottom out around 30 days before departure, at €521.70. Across the whole booking window the gap between the cheapest and the dearest lead time is 143 percent, measured on 13 September 2026. Booking inside the last week has consistently cost more on this corridor.
Which day of the week is cheapest for Seoul to Seattle?
Sunday is the cheapest day to depart from Seoul to Seattle, at €773.04. That is the median of 21 priced departure days across the next three weeks, checked on 13 September 2026. Shifting a departure by one day is usually worth more than shifting the booking by one week.
Which month is cheapest for Seoul to Seattle?
February is the cheapest of the next 6 months to travel from Seoul to Seattle, at €519.34 for one passenger. Each month is priced on its fifteenth, so the comparison is like for like rather than a mix of weekends and midweek departures.
Who runs services from Seoul to Seattle?
3 operators sell services from Seoul to Seattle across 1 mode: Alaska Airlines, Asiana Airlines, Korean Air. Journey times, fares and fare conditions differ between them, and the operator table on this page compares all of them on speed, flexibility and what is provided on board.
Is there a direct service from Seoul to Seattle?
82 percent of the services we sell from Seoul to Seattle are direct. The rest connect at Vancouver, Tokyo, Portland, Anchorage, with about 57 minutes between the two services. Both legs are sold on one booking, so a missed connection is rebooked at no charge.
Which station or terminal do services from Seoul to Seattle use?
Services from Seoul to Seattle by flight leave from Seoul ICN and arrive at Seattle BFI. Allow about 3h 10m in total for reaching the departure terminal and leaving the arrival one, which is already included in every door to door time on this page.
Can I change or refund a ticket from Seoul to Seattle?
0 of the 3 operators we sell from Seoul to Seattle allow a change or a refund. A change on a changeable fare costs €5.00. The operator table on this page names which is which, and the condition is shown again before you pay.
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, Distances
- On this page
- Every figure above was computed for Seoul to Seattle on 13 September 2026: 8572 km of route against 8322 km in a straight line, 22 services a day, 3 operators, a cheapest fare of €663.30, and 14h 19m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
The journey is the easy half to plan. The days in Seattle are the half people leave until last.
Anything to book in Seattle before you go?
Day trips that leave Seattle in the morning and cover a good part of United States by evening.
See Seattle on GetYourGuideOr browse Viator
Partner links. We do not sell tours or tickets. We earn a commission on a booking, and it never changes the price.
Other ways to make this journey
Leaving Seoul
Arriving in Seattle
Leaving Seattle
- 136Places you can leave for
- 19Countries
- 50Operators
Plan a trip from here
Ask Ori for the same corridor under a different constraint, or for a longer trip that starts on it.