$214+ Cheap flights from Detroit to Seattle (DTT - SEA)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SEA
Sep 29 — Oct 61
Round-trip
1 adult, Economy
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Find cheap flights from Detroit to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Detroit All airports to Seattle/Tacoma Intl are usually found in January or March, booked 70 days in advance, depart on a Friday or Thursday and return on a Wednesday
Cheap flight deals from Detroit to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Detroit to SeattleExplore the most affordable flight options available from Detroit to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 30, 2026.
Explore the most affordable flight options available from Detroit to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:08 am -
1 stop11h 00m
Sat 10/34:27 pm -
2 stops14h 25m
Deal found 8/28![Frontier logo]()
$332
This CheapOair deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:08 am -
1 stop11h 00m
Wed 9/304:27 pm -
1 stop20h 01m
Deal found 8/25![Frontier logo]()
$333
This American Airlines deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:00 am -
1 stop8h 11m
Sat 9/266:00 am -
1 stop7h 55m
Deal found 8/25![American Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:15 am -
1 stop29h 27m
Mon 10/59:45 pm -
1 stop28h 10m
Deal found 8/29![Frontier logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:08 am -
1 stop11h 00m
Thu 9/244:27 pm -
2 stops14h 25m
Deal found 8/26![Frontier logo]()
$336
This Delta deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:00 am -
Nonstop4h 55m
Tue 10/65:30 am -
1 stop6h 46m
Deal found 8/27![Delta logo]()
$337
This CheapOair deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:35 pm -
1 stop21h 33m
Tue 9/2210:57 am -
1 stop14h 58m
Deal found 8/27![Frontier logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:08 am -
1 stop11h 00m
Mon 10/59:45 pm -
2 stops19h 38m
Deal found 8/27![Frontier logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:08 am -
1 stop11h 00m
Tue 10/134:27 pm -
1 stop20h 07m
Deal found 8/27![Frontier logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:35 pm -
1 stop21h 33m
Wed 9/234:27 pm -
2 stops26h 05m
Deal found 8/25![Frontier logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/210:29 pm -
2 stops25h 01m
Wed 10/79:45 pm -
1 stop28h 15m
Deal found 8/28![Frontier logo]()
$342
This CheapOair deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:08 am -
1 stop11h 00m
Mon 9/219:45 pm -
1 stop28h 10m
Deal found 8/27![Frontier logo]()
$343
Best flights from Detroit to SeattleDiscover carefully curated flight deals from Detroit to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 30, 2026.
Discover carefully curated flight deals from Detroit to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 30, 2026.
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:57 pm -
Nonstop5h 08m
Mon 10/1211:50 pm -
1 stop8h 55m
Deal found 8/29![Delta logo]()
$367
This Alaska Airlines deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:01 am -
Nonstop4h 53m
Fri 9/259:59 pm -
Nonstop4h 23m
Deal found 8/25![Alaska Airlines logo]()
$375
This Southwest deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:10 am -
2 stops11h 10m
Fri 10/305:50 am -
2 stops8h 05m
Deal found 8/29![Southwest logo]()
$406
This United Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:25 am -
2 stops13h 12m
Wed 9/301:56 pm -
1 stop7h 03m
Deal found 8/29![United Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:50 pm -
Nonstop5h 08m
Sun 11/156:00 am -
Nonstop4h 19m
Deal found 8/29![Delta logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:01 am -
Nonstop4h 53m
Mon 9/289:59 pm -
Nonstop4h 23m
Deal found 8/29![Alaska Airlines logo]()
$395
This Southwest deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/131:30 pm -
2 stops12h 30m
Sun 11/155:30 am -
1 stop8h 45m
Deal found 8/29![Southwest logo]()
$411
This Delta deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:57 pm -
Nonstop5h 08m
Mon 10/2611:10 pm -
Nonstop4h 18m
Deal found 8/25![Delta logo]()
$395
This Delta deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:10 pm -
Nonstop4h 55m
Fri 9/259:59 am -
1 stop10h 41m
Deal found 8/25![Delta logo]()
$405
This Southwest deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:45 pm -
1 stop7h 45m
Sat 12/56:45 am -
2 stops12h 15m
Deal found 8/26![Southwest logo]()
$456
This Delta deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:00 am -
Nonstop4h 55m
Mon 10/512:35 pm -
1 stop8h 05m
Deal found 8/27![Delta logo]()
$405
This Delta deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:22 pm -
1 stop11h 26m
Wed 10/73:00 pm -
Nonstop4h 16m
Deal found 8/27![Delta logo]()
$405
Last-minute flights from Detroit to SeattleDiscover last-minute flight deals from Detroit to Seattle. Data last updated August 30, 2026 and is based on user searches.
Discover last-minute flight deals from Detroit to Seattle. Data last updated August 30, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:55 am -
1 stop8h 27m
Tue 10/138:00 pm -
2 stops30h 00m
Deal found 8/25![Frontier logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:08 am -
1 stop11h 00m
Wed 9/234:27 pm -
1 stop20h 01m
Deal found 8/26![Frontier logo]()
$336
This CheapOair deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:35 pm -
1 stop21h 33m
Tue 9/2210:57 am -
1 stop14h 58m
Deal found 8/27![Frontier logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:35 pm -
1 stop21h 33m
Wed 9/234:27 pm -
2 stops26h 05m
Deal found 8/25![Frontier logo]()
$341
This CheapOair deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:08 am -
1 stop11h 00m
Wed 9/304:27 pm -
1 stop20h 01m
Deal found 8/25![Frontier logo]()
$333
This American Airlines deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:00 am -
1 stop8h 11m
Sat 9/266:00 am -
1 stop7h 55m
Deal found 8/25![American Airlines logo]()
$334
This CheapOair deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:08 am -
1 stop11h 00m
Mon 9/219:45 pm -
1 stop28h 10m
Deal found 8/27![Frontier logo]()
$343
This CheapOair deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:35 pm -
1 stop21h 33m
Sun 10/49:45 pm -
1 stop28h 10m
Deal found 8/27![Frontier logo]()
$342
This Delta deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:00 am -
Nonstop4h 55m
Mon 10/511:59 pm -
1 stop8h 46m
Deal found 8/27![Delta logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:15 am -
1 stop29h 27m
Mon 10/59:45 pm -
1 stop28h 10m
Deal found 8/29![Frontier logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:08 am -
1 stop11h 00m
Sat 10/34:27 pm -
2 stops14h 25m
Deal found 8/28![Frontier logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:08 am -
1 stop11h 00m
Mon 10/59:45 pm -
2 stops19h 38m
Deal found 8/27![Frontier logo]()
$339
One-way flights from Detroit to SeattleSearch for one-way flight options from Detroit to Seattle. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
Search for one-way flight options from Detroit to Seattle. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:15 am -
2 stops16h 15m
Deal found 8/29![Frontier logo]()
$214
This Frontier deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:50 am -
1 stop11h 56m
Deal found 8/30![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:29 pm -
2 stops19h 39m
Deal found 8/27![Frontier logo]()
$217
This Southwest deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:20 am -
1 stop7h 55m
Deal found 8/28![Southwest logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am -
2 stops30h 42m
Deal found 8/27![Frontier logo]()
$219
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:02 am -
3 stops15h 13m
Deal found 8/28![United Airlines logo]()
$222
This Sun Country Air deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/276:29 pm -
1 stop7h 20m
Deal found 8/26![Sun Country Air logo]()
$223
This Southwest deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:05 am -
2 stops11h 00m
Deal found 8/28![Southwest logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:28 pm -
2 stops39h 31m
Deal found 8/29![Frontier logo]()
$225
This Frontier deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:08 am -
1 stop11h 04m
Deal found 8/27![Frontier logo]()
$226
Find flight deals from Detroit to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $332 (Kiwi.com) |
One-way from | $214 (Kiwi.com) |
Popular in | October |
Cheapest in | January |
Average price | $447 |
Good round-trip deal | $446 or less |
Good one-way deal | $274 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Detroit to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 30, 2026.
Use the filters below to find and compare flights from Detroit to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DetroitSeattle
DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl
DTWSEA
Detroit Metropolitan Wayne County
Fri 10/9
7:57 pm-10:05 pm
Nonstop5h 08m
Seattle/Tacoma Intl
Mon 10/12
11:50 pm-11:45 am
1 stop8h 55m
$367
Quickest round-trip
DetroitSeattle
DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl
DTWSEA
Detroit Metropolitan Wayne County
Fri 9/18
7:01 am-8:54 am
Nonstop4h 53m
Seattle/Tacoma Intl
Fri 9/25
9:59 pm-5:22 am
Nonstop4h 23m
$375
DetroitSeattle
DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl
DTWSEA
Detroit Metropolitan Wayne County
Fri 11/13
7:50 pm-9:58 pm
Nonstop5h 08m
Seattle/Tacoma Intl
Sun 11/15
6:00 am-1:19 pm
Nonstop4h 19m
$387
DetroitSeattle
DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl
DTWSEA
Detroit Metropolitan Wayne County
Thu 9/24
7:01 am-8:54 am
Nonstop4h 53m
Seattle/Tacoma Intl
Mon 9/28
9:59 pm-5:22 am
Nonstop4h 23m
$395
DetroitSeattle
DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl
DTWSEA
Detroit Metropolitan Wayne County
Fri 10/23
7:57 pm-10:05 pm
Nonstop5h 08m
Seattle/Tacoma Intl
Mon 10/26
11:10 pm-6:28 am
Nonstop4h 18m
$395
DetroitSeattle
DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl
DTWSEA
Detroit Metropolitan Wayne County
Fri 9/18
8:10 pm-10:05 pm
Nonstop4h 55m
Seattle/Tacoma Intl
Fri 9/25
9:59 am-11:40 pm
1 stop10h 41m
$405
DetroitSeattle
DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl
DTWSEA
Detroit Metropolitan Wayne County
Thu 10/1
6:00 am-7:55 am
Nonstop4h 55m
Seattle/Tacoma Intl
Mon 10/5
12:35 pm-11:40 pm
1 stop8h 05m
$405
DetroitSeattle
DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl
DTWSEA
Detroit Metropolitan Wayne County
Tue 9/29
12:22 pm-8:48 pm
1 stop11h 26m
Seattle/Tacoma Intl
Wed 10/7
3:00 pm-10:16 pm
Nonstop4h 16m
$405
DetroitSeattle
DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl
DTWSEA
Detroit Metropolitan Wayne County
Tue 10/27
6:10 am-2:20 pm
2 stops11h 10m
Seattle/Tacoma Intl
Fri 10/30
5:50 am-4:55 pm
2 stops8h 05m
$406
DetroitSeattle
DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl
DTWSEA
Detroit Metropolitan Wayne County
Fri 11/13
1:30 pm-11:00 pm
2 stops12h 30m
Seattle/Tacoma Intl
Sun 11/15
5:30 am-5:15 pm
1 stop8h 45m
$411
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from Detroit to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to Seattle in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Detroit-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Detroit-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Detroit-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Detroit to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Detroit with our price prediction graph.
DTT-SEA
DTW-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Detroit to Seattle
DTT-SEA
DTW-SEA
What is the cheapest month to book a flight from Detroit to Seattle?
Currently, January is the cheapest month in which you can book a flight from Detroit to Seattle (average of $265). Flying from Detroit to Seattle in June is currently the most expensive (average of $493). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from DTT to SEA?
Find hourly flight availability from Detroit to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 30, 2026.
It’s optimal to fly from Detroit to Seattle in the evening. By choosing this option you can save up to 40% on the cost of your flight, compared to a flight at noon.
Weekly flight availability from Detroit to Seattle
Explore weekly flight availability from Detroit to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 30, 2026.
The most flights from DTT to SEA are scheduled on a Friday (20 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).
How much does it cost to fly round-trip from Detroit to Seattle?
Airfare is below average for this route at the moment.
Detroit to Seattle flights typically cost between $342 and $579 in September.The cheapest round-trip price found within the last 5 days was $332 on Frontier (Sep 29-Oct 3).
What’s the top layover airport for flights from Detroit to Seattle?
Share of 1-stop round-trip flights from Detroit to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 75% of 1-stop itineraries from Detroit to Seattle on Cheapflights.
What’s the cheapest layover airport for flights from Detroit to Seattle?
Average round-trip fare for 1-stop flights from Detroit to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $358.
What’s the fastest layover option from Detroit to Seattle?
Shortest average travel time for 1-stop one-way flights from Detroit to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 7h 11m.
Which airport typically offers the quickest layover for flights from Detroit to Seattle?
Average layover duration for 1-stop one-way flights from Detroit to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 08m.
How far ahead should I book a flight from Detroit to Seattle?
The price you pay for your flight from Detroit to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 69 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Detroit to Seattle?
Use this chart to determine the cheapest time to fly round-trip from Detroit to Seattle. Price data was last updated on August 22, 2026.
Travelers seeking maximum savings on their Detroit to Seattle flight should consider departing on Saturday at noon when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated August 30, 2026.
Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from Detroit to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Food
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Food
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Food
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Food
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Food
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Food
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Related info for your journey
Find useful and relevant information for your journey from Detroit to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Edmonds
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ellensburg
Issaquah
Marysville
Ocean Shores
Lakewood
Fife
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Detroit and Seattle flights
Browse other Detroit and Seattle flight options. Last updated on August 30, 2026.
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Other flights to Seattle
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Top 5 airlines flying from Detroit to Seattle
Discover the top 5 airlines that operate flights from Detroit to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$190 | Average$309 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$196 | Average$517 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$212 | Average$421 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$212 | Average$467 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$240 | Average$358 | FlexibilityNo cancel fee | On-time69% |