Seattle to Kansas City (SEA-MCI): nonstop upgrade & award space

Alaska Airlines and Delta Air Lines fly nonstop between Seattle (SEA) and Kansas City (MCI), roughly 21 times a week. With Alaska Airlines running most of the schedule, the shape of a week is predictable, which makes an open premium seat on a given date easy to spot and quick to lose. 2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines, on every SEA to MCI departure, so you know which flights have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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21
Nonstop flights a week
1,486 mi
Nonstop distance
Free
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Seattle to Kansas City flight schedule

Scheduled nonstop departures for SEA to MCI, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Seattle (SEA) to Kansas City (MCI)
Date Flight Airline Departs SEA Arrives MCI Duration Aircraft
AS 501Alaska Airlines, Inc.08:1213:573h 45m73J
DL 2256Delta Air Lines17:4023:163h 36m223
AS 497Alaska Airlines, Inc.18:2723:593h 32m73J
AS 501Alaska Airlines, Inc.08:1213:573h 45m7M9
DL 2256Delta Air Lines17:4023:163h 36m223
AS 497Alaska Airlines, Inc.18:2723:593h 32m73J
AS 501Alaska Airlines, Inc.08:1213:573h 45m737
DL 2256Delta Air Lines17:4023:163h 36m223
AS 497Alaska Airlines, Inc.18:2723:593h 32m73J
AS 501Alaska Airlines, Inc.08:1213:573h 45m73J
DL 2256Delta Air Lines17:4023:163h 36m223
AS 497Alaska Airlines, Inc.18:2723:593h 32m73J
AS 501Alaska Airlines, Inc.08:1213:573h 45m7M9
DL 2256Delta Air Lines17:4023:163h 36m223
AS 497Alaska Airlines, Inc.18:2723:593h 32m73J
AS 501Alaska Airlines, Inc.08:1213:573h 45m7M9
DL 2256Delta Air Lines17:4023:163h 36m223
AS 497Alaska Airlines, Inc.18:2723:593h 32m73H
DL 2256Delta Air Lines17:4023:163h 36m223
AS 497Alaska Airlines, Inc.18:2723:593h 32m737

Showing all 20 scheduled SEA to MCI departures across the next 7 days with service. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every SEA to MCI date on the interactive map

Confirmed upgrade & award space on SEA to MCI departures

2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines, segment by segment and date by date. Open the calendar for Seattle to Kansas City to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade and award seats on each SEA to MCI departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See SEA to MCI on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Seattle to Kansas City nonstop

Carriers operating SEA to MCI nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

See SEA to MCI on the interactive map →

Frequently asked questions about SEA to MCI

How far is Kansas City from Seattle?
SEA to MCI covers about 1,486 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from SEA to MCI?
Alaska Airlines and Delta Air Lines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines.
How many flights a week are there from SEA to MCI?
About 21 nonstop flights a week run between Seattle and Kansas City in the current schedule, operated by Alaska Airlines and Delta Air Lines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from SEA to MCI depart?
Scheduled SEA to MCI nonstops in the next 7 days with service leave between 08:12 and 18:27, local time at Seattle. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
How do I check upgrade or award availability on SEA to MCI?
Open the SEA to MCI route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines and Delta Air Lines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss SEA to MCI upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

Get started free