Cheapest€223.75
- Alaska Airlines AA492806:323h 34m10:06Kansas City MCISeattle BFI
Door to door 6h 44mCO2 612.8 kgChanges 0Fixed, no changes
Kansas City to Seattle flight
Flights from Kansas City to Seattle start at €271.54 and take 6h 44m at their fastest.
Check dates and fares
Fares and seats move by the day. Price Kansas City to Seattle on the date you actually want, rather than on the date this page was built.
The Flights from Kansas City to Seattle starts at €271.54 and takes 6h 44m door to door, run by 1 operator over 2,491 km, with around 5 departures a day. Fares bottom out about 30 days before departure.
- 6h 44mDoor to door
- 3h 34mMoving
- €271.54 to €551.20From
- 06:32 to 07:30First and last departure
- 5Per day
- 612.8 kgCO2
First and last are taken from the services we sell on October 4, 2026. The return direction keeps its own timetable and is not these times reversed.
€271.54 to €551.20 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 €551.20Mon14
- about €446.18Tue15
- about €465.65Wed16
- about €397.21Thu17
- about €469.19Fri18
- about €438.51Sat19
- about €420.22Sun20
- about €271.54Mon21
- about €283.34Tue22
- about €278.62Wed23
- about €422.58Thu24
- about €381.87Fri25
- about €358.86Sat26
- about €326.41Sun27
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 October 4, 2026
Airlines
| Operator | From | Fastest | Typical speed | Flexibility | On board |
|---|---|---|---|---|---|
 Alaska Airlines | €223.75 | 6h 43m | 740 km/h | Fixed fare | Not published |
The flight gets you into Seattle. It does not get you a bed, and neither do we.
A room in Seattle for the night the flight gets in
Sort by distance from Seattle King Street and you can see which places are ten minutes on foot and which are not.
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When to book Kansas City to Seattle
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €285.7090 days
- €244.4060 days
- €191.3045 days
- €180.0930 days
- €223.7521 days
- €326.4114 days
- €420.227 days
- €465.653 days
- €551.201 days
- Cheapest lead time
- Fares bottom out around 30 days ahead, at €180.09.
- How much it moves
- The gap between the cheapest and most expensive lead time is 206 percent. The most expensive point is €551.20, 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.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €326.41Sun
- €271.54Mon
- €283.34Tue
- €280.98Wed
- €397.21Thu
- €381.87Fri
- €358.86Sat
Where you leave from and where you arrive
Kansas City
Air
- MCI
Seattle
Air
- SEA
- BFI
What the journey actually looks like
- Direct or connecting
- 20% of the services we sell on this corridor run through without a change. The remaining 80% involve one connection.
- How far it really runs
- The route covers 2,491 km against 2,419 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 Denver, Salt Lake City, Minneapolis, Portland. The gap between arriving and leaving is 47 minutes, of which about 5 is walking.
- If the connection is missed
- The tightest connection we sell here has a 20 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 Kansas City at 06:32 and the last at 07:30, across 5 departures The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Kansas City to Seattle
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 Kansas City to Seattle take?
The Flight from Kansas City to Seattle takes 6h 44m door to door, of which 3h 34m is spent moving. The route runs 2,491 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 Kansas City to Seattle cost?
The Flight from Kansas City to Seattle starts at €271.54 for one passenger, as of September 13, 2026. A typical fare is €310.48. 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 Kansas City to Seattle?
1 operators run the Flight from Kansas City to Seattle: Alaska Airlines. Between them they file around 5 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 Kansas City to Seattle use?
The Flight from Kansas City to Seattle leaves from Kansas City MCI and arrives at Seattle BFI. 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 Kansas City to Seattle?
Fares for the Flight from Kansas City to Seattle bottom out around 30 days ahead, at €180.09. The gap between the cheapest and most expensive lead time across the window is 206 percent, measured on September 13, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Kansas City to Seattle produce?
The Flight from Kansas City to Seattle produces about 612.8 kg of CO2 per passenger over 2491 km, which works out at roughly 246 grams per passenger kilometer. That figure is for the whole journey and for one traveler, 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.
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
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 Kansas City to Seattle on September 13, 2026: 2491 km of route against 2419 km in a straight line, 5 services a day, 1 operator a cheapest fare of €271.54, and 6h 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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