Detroit (DTW) to Seattle (SEA) flights: who flies it

Detroit to Seattle flight schedule

Scheduled nonstop departures for DTW to SEA starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Detroit (DTW) to Seattle (SEA)
Date	Flight	Airline	Departs DTW	Arrives SEA	Duration	Aircraft
Thu, Oct 22	AS 316	Alaska Airlines, Inc.	07:00	08:55	4h 55m	Boeing 737 MAX 9
Thu, Oct 22	DL 734	Delta Air Lines	08:45	11:00	5h 15m	Airbus A321neo family
Thu, Oct 22	DL 728	Delta Air Lines	12:40	14:45	5h 5m	Boeing 737-900
Thu, Oct 22	DL 944	Delta Air Lines	16:34	18:35	5h 1m	Boeing 737-900
Thu, Oct 22	AS 313	Alaska Airlines, Inc.	17:59	19:57	4h 58m	Boeing 737-900
Thu, Oct 22	DL 565	Delta Air Lines	19:57	22:05	5h 8m	Boeing 737-900
Fri, Oct 23	AS 316	Alaska Airlines, Inc.	07:00	08:55	4h 55m	Boeing 737 MAX 9
Fri, Oct 23	DL 734	Delta Air Lines	08:45	11:00	5h 15m	Airbus A321neo family
Fri, Oct 23	DL 728	Delta Air Lines	12:40	14:45	5h 5m	Boeing 737-900
Fri, Oct 23	DL 944	Delta Air Lines	16:34	18:35	5h 1m	Boeing 737-900
Fri, Oct 23	AS 313	Alaska Airlines, Inc.	17:59	19:57	4h 58m	Boeing 737 MAX 9
Fri, Oct 23	DL 565	Delta Air Lines	19:57	22:05	5h 8m	Boeing 737-900
Sat, Oct 24	AS 316	Alaska Airlines, Inc.	07:00	08:55	4h 55m	Boeing 737-900
Sat, Oct 24	DL 734	Delta Air Lines	08:45	11:00	5h 15m	Airbus A321neo family
Sat, Oct 24	DL 728	Delta Air Lines	12:40	14:45	5h 5m	Boeing 737-900
Sat, Oct 24	DL 944	Delta Air Lines	16:34	18:35	5h 1m	Boeing 737-900
Sat, Oct 24	AS 313	Alaska Airlines, Inc.	17:59	19:57	4h 58m	Boeing 737-900
Sat, Oct 24	DL 565	Delta Air Lines	19:57	22:05	5h 8m	Boeing 737-900
Sun, Oct 25	AS 316	Alaska Airlines, Inc.	07:00	08:55	4h 55m	Boeing 737 MAX 9
Sun, Oct 25	DL 734	Delta Air Lines	08:45	11:00	5h 15m	Airbus A321neo family
Sun, Oct 25	DL 728	Delta Air Lines	12:40	14:45	5h 5m	Boeing 737-900
Sun, Oct 25	DL 944	Delta Air Lines	16:34	18:35	5h 1m	Boeing 737-900
Sun, Oct 25	AS 313	Alaska Airlines, Inc.	17:59	19:57	4h 58m	Boeing 737-900
Sun, Oct 25	DL 565	Delta Air Lines	19:57	22:05	5h 8m	Boeing 737-900
Mon, Oct 26	AS 316	Alaska Airlines, Inc.	07:00	08:55	4h 55m	Boeing 737 MAX 9
Mon, Oct 26	DL 734	Delta Air Lines	08:45	11:00	5h 15m	Airbus A321neo family
Mon, Oct 26	DL 728	Delta Air Lines	12:40	14:45	5h 5m	Boeing 737-900
Mon, Oct 26	DL 944	Delta Air Lines	16:34	18:35	5h 1m	Boeing 737-900
Mon, Oct 26	AS 313	Alaska Airlines, Inc.	17:59	19:57	4h 58m	Boeing 737-900
Mon, Oct 26	DL 565	Delta Air Lines	19:57	22:05	5h 8m	Boeing 737-900
Tue, Oct 27	AS 316	Alaska Airlines, Inc.	07:00	08:55	4h 55m	Boeing 737 MAX 9
Tue, Oct 27	DL 734	Delta Air Lines	08:45	11:00	5h 15m	Airbus A321neo family
Tue, Oct 27	DL 728	Delta Air Lines	12:40	14:45	5h 5m	Boeing 737-900
Tue, Oct 27	DL 944	Delta Air Lines	16:34	18:35	5h 1m	Boeing 737-900
Tue, Oct 27	AS 313	Alaska Airlines, Inc.	17:59	19:57	4h 58m	Boeing 737-800
Tue, Oct 27	DL 565	Delta Air Lines	19:57	22:05	5h 8m	Boeing 737-900
Wed, Oct 28	AS 316	Alaska Airlines, Inc.	07:00	08:55	4h 55m	Boeing 737-800
Wed, Oct 28	DL 734	Delta Air Lines	08:45	11:00	5h 15m	Airbus A321neo family
Wed, Oct 28	DL 728	Delta Air Lines	12:40	14:45	5h 5m	Boeing 737-900
Wed, Oct 28	DL 944	Delta Air Lines	16:34	18:35	5h 1m	Boeing 737-900

Showing the first 40 of 42 scheduled DTW to SEA departures across 7 days with service, starting October 22, 2026. 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 hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every DTW to SEA date on the interactive map

Aircraft on the Detroit to Seattle nonstop

In the schedule table on this page, Delta Air Lines flies the Boeing 737-900 and the Airbus A321neo family, and Alaska Airlines flies the Boeing 737 MAX 9, the Boeing 737-900, and the Boeing 737-800. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

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.

In the 7 days to October 19, 2026, 2LNR checked award space on Detroit to Seattle departures from October 19 to November 1. Delta Air Lines had space open on 14 of 14 dates checked and Alaska Airlines on 10 of 14.

See real availability

Confirmed upgrade or award seats by date on the DTW to SEA departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're 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. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See DTW to SEA on the interactive map →

Frequently asked questions about DTW to SEA

How long is the flight from Detroit (DTW) to Seattle (SEA)?

Scheduled flight times from Detroit (DTW) to Seattle (SEA) run from 4h 55m to 5h 15m across the departures in the schedule table on this page. The nonstop covers about 1,922 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from DTW to SEA?

Delta Air Lines and Alaska Airlines fly DTW to SEA 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 38 nonstop flights a week run between Detroit (DTW) and Seattle (SEA) 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 07:00 and 19:57, local time at Detroit. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate DTW to SEA nonstop?

In the schedule table on this page, DTW to SEA nonstops fly as DL 565, DL 728, DL 734, and DL 944 on Delta Air Lines, and AS 313 and AS 316 on Alaska Airlines. The table lists each departure by date with its times 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.