Detroit to Seattle (DTW-SEA): nonstop upgrade & award space

Delta Air Lines and Alaska Airlines fly nonstop between Detroit (DTW) and Seattle (SEA), roughly 49 times a week. With this many departures on a short sector, premium cabins are small and turn over daily, so upgrade or award space opens and closes within hours. 2LNR tracks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines, on every DTW to SEA 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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49
Nonstop flights a week
1,922 mi
Nonstop distance
Free
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Detroit to Seattle flight schedule

Scheduled nonstop departures for DTW to SEA, 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 Detroit (DTW) to Seattle (SEA)
Date Flight Airline Departs DTW Arrives SEA Duration Aircraft
DL 732Delta Air Lines06:0007:554h 55m739
AS 344Alaska Airlines, Inc.07:0108:544h 53m73H
DL 734Delta Air Lines08:2510:265h 1m32Q
DL 728Delta Air Lines12:5514:494h 54m739
DL 944Delta Air Lines16:5318:454h 52m739
AS 313Alaska Airlines, Inc.17:3919:344h 55m7M8
DL 565Delta Air Lines20:1022:054h 55m32Q
DL 732Delta Air Lines06:0007:554h 55m739
AS 344Alaska Airlines, Inc.07:0108:544h 53m73H
DL 734Delta Air Lines08:2510:265h 1m32Q
DL 728Delta Air Lines12:5514:494h 54m739
DL 944Delta Air Lines16:5318:454h 52m739
AS 313Alaska Airlines, Inc.17:3919:344h 55m7M8
DL 565Delta Air Lines20:1022:054h 55m32Q
DL 732Delta Air Lines06:0007:554h 55m739
AS 344Alaska Airlines, Inc.07:0109:004h 59m73J
DL 734Delta Air Lines08:2510:265h 1m32Q
DL 728Delta Air Lines12:5514:494h 54m739
DL 944Delta Air Lines16:5318:454h 52m739
AS 313Alaska Airlines, Inc.17:3919:344h 55m7M8
DL 565Delta Air Lines20:1022:054h 55m32Q
DL 732Delta Air Lines06:0007:554h 55m739
AS 344Alaska Airlines, Inc.07:0109:004h 59m73J
DL 734Delta Air Lines08:2510:265h 1m32Q
DL 728Delta Air Lines12:5514:494h 54m739
DL 944Delta Air Lines16:5318:454h 52m739
AS 313Alaska Airlines, Inc.17:3919:344h 55m7M8
DL 565Delta Air Lines20:1022:054h 55m32Q
AS 344Alaska Airlines, Inc.07:0109:004h 59m73J
DL 734Delta Air Lines08:2510:265h 1m32Q
DL 728Delta Air Lines12:5514:494h 54m739
DL 944Delta Air Lines16:5318:454h 52m739
AS 313Alaska Airlines, Inc.17:3919:344h 55m7M9
DL 565Delta Air Lines20:1022:054h 55m32Q
DL 732Delta Air Lines06:0007:554h 55m739
AS 344Alaska Airlines, Inc.07:0109:004h 59m73J
DL 734Delta Air Lines08:2510:265h 1m32Q
DL 728Delta Air Lines12:5514:494h 54m739
DL 944Delta Air Lines16:5318:454h 52m739
AS 313Alaska Airlines, Inc.17:3919:344h 55m7M8

Showing the first 40 of 48 scheduled DTW to SEA departures across the next 7 days with service. Every remaining date is 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 DTW to SEA date on the interactive map

Confirmed upgrade & award space on DTW to SEA departures

2LNR tracks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines, segment by segment and date by date. Open the calendar for Detroit to Seattle 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 DTW to SEA 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 DTW to SEA on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Detroit to Seattle nonstop

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

See DTW to SEA on the interactive map →

Frequently asked questions about DTW to SEA

How far is Seattle from Detroit?
DTW to SEA covers about 1,922 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 DTW to SEA?
Delta Air Lines and Alaska Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines.
How many flights a week are there from DTW to SEA?
About 49 nonstop flights a week run between Detroit and Seattle in the current schedule, operated by Delta Air Lines and Alaska Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from DTW to SEA depart?
Scheduled DTW to SEA nonstops in the next 7 days with service leave between 06:00 and 20:10, local time at Detroit. 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 DTW to SEA?
Open the DTW to SEA route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines and Alaska Airlines, 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 DTW to SEA 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