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Cheap flights from Detroit to Seattle from $141

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to Seattle departing on 9/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Detroit to Seattle

Cheap round-trip flights

Logo
11:00 am - 12:30 amDTW-SEA
16h 30m2 stops
Logo
1:47 pm - 4:18 pmSEA-DTW
23h 31m1 stop
$266
Find Deal
Mon, Sep 22 - Mon, Sep 29
Frontier Logo
6:10 am - 12:30 amDTW-SEA
21h 20m1 stop
Frontier Logo
6:12 am - 12:46 amSEA-DTW
15h 34m1 stop
$267Frontier
Find Deal
Fri, Sep 5 - Mon, Sep 8
Frontier Logo
7:55 am - 12:07 pmDTW-SEA
7h 12m1 stop
Frontier Logo
2:31 pm - 12:59 amSEA-DTW
7h 28m1 stop
$268Frontier
Find Deal
Tue, Oct 7 - Fri, Oct 17
Logo
9:05 pm - 12:07 pmDTW-SEA
18h 02m2 stops
Logo
9:58 pm - 6:25 pmSEA-DTW
17h 27m1 stop
$269
Find Deal
Wed, Oct 22 - Sun, Oct 26
Logo
7:05 am - 3:31 pmDTW-SEA
35h 26m2 stops
Logo
7:00 am - 12:46 amSEA-DTW
14h 46m1 stop
$270
Find Deal
Wed, Sep 17 - Wed, Sep 24
Frontier Logo
6:00 am - 7:48 pmDTW-SEA
16h 48m1 stop
Frontier Logo
2:31 pm - 12:59 amSEA-DTW
7h 28m1 stop
$271Frontier
Find Deal
Sun, Oct 19 - Fri, Oct 24
JetBlue Logo
12:16 pm - 10:10 pmDTW-SEA
12h 54m1 stop
JetBlue Logo
11:40 pm - 2:17 pmSEA-DTW
11h 37m1 stop
$293JetBlue
Find Deal
Sat, Oct 18 - Sat, Oct 25
Delta Logo
12:48 pm - 2:40 pmDTW-SEA
4h 52mnonstop
Delta Logo
11:15 pm - 6:28 amSEA-DTW
4h 13mnonstop
$297Delta
Find Deal
Wed, Oct 1 - Tue, Oct 7
JetBlue Logo
5:42 pm - 11:59 amDTW-SEA
21h 17m1 stop
JetBlue Logo
11:40 pm - 11:30 amSEA-DTW
8h 50m1 stop
$303JetBlue
Find Deal
Mon, Oct 6 - Fri, Oct 10
Delta Logo
8:20 pm - 10:16 pmDTW-SEA
4h 56mnonstop
Delta Logo
11:11 pm - 6:29 amSEA-DTW
4h 18mnonstop
$307Delta
Find Deal
Sat, Sep 20 - Fri, Sep 26

JetBlue flights from Detroit to Seattle

Our best JetBlue deals on Detroit to Seattle flight tickets
JetBlue
Oct 18
DTW12:16 pmDetroit Metropolitan Wayne County
12h 54m
1 stop
SEA10:10 pmSeattle/Tacoma Intl
Oct 25
SEA11:40 pmSeattle/Tacoma Intl
11h 37m
1 stop
DTW2:17 pmDetroit Metropolitan Wayne County
$293
Find similar
JetBlue
Oct 6
DTW5:42 pmDetroit Metropolitan Wayne County
21h 17m
1 stop
SEA11:59 amSeattle/Tacoma Intl
Oct 10
SEA11:40 pmSeattle/Tacoma Intl
8h 50m
1 stop
DTW11:30 amDetroit Metropolitan Wayne County
$303
Find similar
JetBlue
Oct 1
DTW12:16 pmDetroit Metropolitan Wayne County
13h 04m
1 stop
SEA10:20 pmSeattle/Tacoma Intl
Oct 11
SEA11:40 pmSeattle/Tacoma Intl
8h 50m
1 stop
DTW11:30 amDetroit Metropolitan Wayne County
$308
Find similar

Delta flights from Detroit to Seattle

Our best Delta deals on Detroit to Seattle flight tickets
Delta
Oct 1
DTW12:48 pmDetroit Metropolitan Wayne County
4h 52m
SEA2:40 pmSeattle/Tacoma Intl
Oct 7
SEA11:15 pmSeattle/Tacoma Intl
4h 13m
DTW6:28 amDetroit Metropolitan Wayne County
$297
Find similar
Delta
Sep 20
DTW8:20 pmDetroit Metropolitan Wayne County
4h 56m
SEA10:16 pmSeattle/Tacoma Intl
Sep 25
SEA3:15 pmSeattle/Tacoma Intl
4h 16m
DTW10:31 pmDetroit Metropolitan Wayne County
$307
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 25, 2025.
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

Price

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 9/22

11:00 am-12:30 am

2 stops16h 30m

Seattle/Tacoma Intl

Mon 9/29

1:47 pm-4:18 pm

1 stop23h 31m

$266

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 9/5

6:10 am-12:30 am

1 stop21h 20m

Seattle/Tacoma Intl

Mon 9/8

6:12 am-12:46 am

1 stop15h 34m

$267

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 10/7

7:55 am-12:07 pm

1 stop7h 12m

Seattle/Tacoma Intl

Fri 10/17

2:31 pm-12:59 am

1 stop7h 28m

$268

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 10/22

9:05 pm-12:07 pm

2 stops18h 02m

Seattle/Tacoma Intl

Sun 10/26

9:58 pm-6:25 pm

1 stop17h 27m

$269

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 9/17

7:05 am-3:31 pm

2 stops35h 26m

Seattle/Tacoma Intl

Wed 9/24

7:00 am-12:46 am

1 stop14h 46m

$270

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sun 10/19

6:00 am-7:48 pm

1 stop16h 48m

Seattle/Tacoma Intl

Fri 10/24

2:31 pm-12:59 am

1 stop7h 28m

$271

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 10/18

12:16 pm-10:10 pm

1 stop12h 54m

Seattle/Tacoma Intl

Sat 10/25

11:40 pm-2:17 pm

1 stop11h 37m

$293

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 10/1

12:48 pm-2:40 pm

Nonstop4h 52m

Seattle/Tacoma Intl

Tue 10/7

11:15 pm-6:28 am

Nonstop4h 13m

$297

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 10/6

5:42 pm-11:59 am

1 stop21h 17m

Seattle/Tacoma Intl

Fri 10/10

11:40 pm-11:30 am

1 stop8h 50m

$303

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 9/20

8:20 pm-10:16 pm

Nonstop4h 56m

Seattle/Tacoma Intl

Fri 9/26

11:11 pm-6:29 am

Nonstop4h 18m

$307

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Detroit to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Detroit and Seattle?

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Detroit to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $296. If you don’t want to visit Seattle in October, then you should wait until January to fly from Detroit, when ticket prices are also cheap, with an average price of $297.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Detroit is on a Friday. momondo users have found tickets for Friday departures for as low as $494. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Detroit because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $579.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Detroit in the evening is the least expensive time of day to depart. momondo users have found prices as low as $369 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $562. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Detroit to Seattle/Tacoma Intl flight route?

Fly from Detroit Metropolitan Wayne County to Seattle/Tacoma Intl for the best Detroit - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Detroit when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $377 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Detroit for as low as $336 on momondo.

What cabin class options are available on Detroit to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Detroit to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Detroit to Seattle flights?

No. A direct flight is the cheapest option for a flight between Detroit to Seattle.

How have Detroit to Seattle flight prices changed over time?

As of August 2025, prices for Detroit to Seattle flights are approximately 14% cheaper when compared to flights at the same time last year.

When to book flights from Detroit to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Detroit to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Detroit to Seattle (DTT to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Detroit to Seattle

Best Price Found

$284

Fastest flight time

4h 49m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Detroit in the past 72 hours is $284. The best round-trip flight deal from Detroit to Seattle found on momondo in the last 72 hours is $347.
The fastest flight from Detroit to Seattle takes 4h 49m
Direct flights go from Detroit to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

  • How far is Detroit to Seattle/Tacoma Intl by plane?

    A flight from Detroit to Seattle/Tacoma Intl will travel around 1931.7 mi. Typically, this will take 4h 52m by plane in normal conditions.

  • When did momondo last update prices for flights from Detroit to Seattle/Tacoma Intl Airport?

    Prices for flights from Detroit to Seattle/Tacoma Intl Airport are updated daily.

  • How many operators does momondo search for flights from Detroit to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Detroit to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Detroit to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Detroit to Seattle?

  • What is the most popular airline from Detroit to Seattle?

Best airlines flying from Detroit to Seattle

Compare and see reviews for airlines that fly from Detroit to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $128Free CancellationRating
5.8
3,201 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $130Free CancellationRating
6.3
8,029 reviews
Search Spirit Airlines flights
Sun Country AirPriceFrom $133Free CancellationRating
6.9
332 reviews
Search Sun Country Air flights
American AirlinesPriceFrom $158Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Hawaiian AirlinesPriceFrom $178Free CancellationRating
7.8
2,679 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $222Free CancellationRating
8.0
4,243 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $256Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $256Free CancellationRating
7.4
8,940 reviews
Search United Airlines flights
DeltaPriceFrom $257Free CancellationRating
7.9
7,981 reviews
Search Delta flights

  • Alaska Airlines Flights From Detroit to Seattle

    Alaska Airlines flies from Detroit to Seattle around 4 times per week, with 10,000 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Detroit to Seattle in the last 72 hours was $256 (round-trip), much lower than the average airfare cost of $401 for Alaska Airlines flights on this route.

  • Delta Flights From Detroit to Seattle

    Delta (7.9/10 from 7,981 reviews) operates around 23 flights from Detroit to Seattle in any given week. The average Delta airfare for this route is around $407, with deals from around $257 rare but found on momondo. Referenced prices are for round-trip Detroit to Seattle flight searches in the last 72 hours.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Renton
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Cle Elum
Tukwila
Kirkland
Centralia
Lakewood
Shoreline
Fife
Redmond
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Detroit to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Detroit.

Can I find flights from Detroit to Seattle with flexible booking policies on momondo?

Flights from Detroit to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Detroit to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Detroit to Seattle.

I’m not ready to book a flight from Detroit to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Detroit and alert you when they change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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