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Cheap flights from Detroit to Seattle from C$ 190

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 9/9. 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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Cheap round-trip flights

Sun Country Air Logo
1:45 p.m. - 5:32 p.m.DTW-SEA
6h 47m1 stop
Sun Country Air Logo
6:34 p.m. - 9:18 a.m.SEA-DTW
11h 44m1 stop
C$ 311Sun Country Air
Find Deal
Tue, 19 Aug - Wed, 27 Aug
Sun Country Air Logo
11:11 a.m. - 10:50 p.m.DTW-SEA
14h 39m1 stop
Sun Country Air Logo
9:13 a.m. - 6:12 p.m.SEA-DTW
5h 59m1 stop
C$ 343Sun Country Air
Find Deal
Mon, 18 Aug - Fri, 29 Aug
Frontier Logo
7:40 a.m. - 11:45 a.m.DTW-SEA
7h 05m1 stop
Frontier Logo
12:40 p.m. - 12:44 a.m.SEA-DTW
9h 04m1 stop
C$ 354Frontier
Find Deal
Sat, 23 Aug - Sat, 30 Aug
Hawaiian Airlines Logo
6:30 a.m. - 8:26 a.m.DTW-SEA
4h 56mdirect
Hawaiian Airlines Logo
8:50 a.m. - 4:14 p.m.SEA-DTW
4h 24mdirect
C$ 356Hawaiian Airlines
Find Deal
Wed, 1 Oct - Tue, 7 Oct
Frontier Logo
7:40 a.m. - 11:45 a.m.DTW-SEA
7h 05m1 stop
Frontier Logo
12:40 p.m. - 12:44 a.m.SEA-DTW
9h 04m1 stop
C$ 357Frontier
Find Deal
Sat, 23 Aug - Sat, 30 Aug
Delta Logo
6:50 p.m. - 8:49 p.m.DTW-SEA
4h 59mdirect
Delta Logo
10:15 a.m. - 10:37 p.m.SEA-DTW
9h 22m1 stop
C$ 368Delta
Find Deal
Sat, 30 Aug - Sat, 6 Sep
Delta Logo
4:00 p.m. - 10:25 p.m.DTW-SEA
9h 25m1 stop
Delta Logo
6:00 a.m. - 1:12 p.m.SEA-DTW
4h 12mdirect
C$ 369Delta
Find Deal
Wed, 3 Sep - Wed, 10 Sep
Alaska Airlines Logo
4:51 p.m. - 6:40 p.m.DTW-SEA
4h 49mdirect
Alaska Airlines Logo
9:41 p.m. - 5:07 a.m.SEA-DTW
4h 26mdirect
C$ 403Alaska Airlines
Find Deal
Wed, 17 Sep - Wed, 17 Sep
Hawaiian Airlines Logo
7:00 a.m. - 8:56 a.m.DTW-SEA
4h 56mdirect
Hawaiian Airlines Logo
9:41 p.m. - 5:07 a.m.SEA-DTW
4h 26mdirect
C$ 405Hawaiian Airlines
Find Deal
Sat, 6 Sep - Mon, 8 Sep
Alaska Airlines Logo
7:00 a.m. - 8:56 a.m.DTW-SEA
4h 56mdirect
Alaska Airlines Logo
9:41 p.m. - 5:07 a.m.SEA-DTW
4h 26mdirect
C$ 425Alaska Airlines
Find Deal
Sat, 6 Sep - Mon, 8 Sep

Frontier flights from Detroit to Seattle

Our best Frontier deals on Detroit to Seattle flight tickets
Frontier
23 Aug
DTW7:40 a.m.Detroit Metropolitan Wayne County
7h 05m
1 stop
SEA11:45 a.m.Seattle/Tacoma Intl
30 Aug
SEA12:40 p.m.Seattle/Tacoma Intl
9h 04m
1 stop
DTW12:44 a.m.Detroit Metropolitan Wayne County
C$ 354
Find similar
Frontier
23 Aug
DTW7:40 a.m.Detroit Metropolitan Wayne County
7h 05m
1 stop
SEA11:45 a.m.Seattle/Tacoma Intl
30 Aug
SEA12:40 p.m.Seattle/Tacoma Intl
9h 04m
1 stop
DTW12:44 a.m.Detroit Metropolitan Wayne County
C$ 357
Find similar
Frontier
26 Aug
DTW8:00 a.m.Detroit Metropolitan Wayne County
18h 01m
1 stop
SEA11:01 p.m.Seattle/Tacoma Intl
2 Sep
SEA6:41 a.m.Seattle/Tacoma Intl
12h 02m
1 stop
DTW9:43 p.m.Detroit Metropolitan Wayne County
C$ 371
Find similar

Delta flights from Detroit to Seattle

Our best Delta deals on Detroit to Seattle flight tickets
Delta
30 Aug
DTW6:50 p.m.Detroit Metropolitan Wayne County
4h 59m
SEA8:49 p.m.Seattle/Tacoma Intl
6 Sep
SEA10:15 a.m.Seattle/Tacoma Intl
9h 22m
1 stop
DTW10:37 p.m.Detroit Metropolitan Wayne County
C$ 368
Find similar
Delta
3 Sep
DTW4:00 p.m.Detroit Metropolitan Wayne County
9h 25m
1 stop
SEA10:25 p.m.Seattle/Tacoma Intl
10 Sep
SEA6:00 a.m.Seattle/Tacoma Intl
4h 12m
DTW1:12 p.m.Detroit Metropolitan Wayne County
C$ 369
Find similar
Delta
22 Nov
DTW7:45 p.m.Detroit Metropolitan Wayne County
6h 49m
1 stop
SEA11:34 p.m.Seattle/Tacoma Intl
26 Nov
SEA11:55 p.m.Seattle/Tacoma Intl
6h 05m
1 stop
DTW9:00 a.m.Detroit Metropolitan Wayne County
C$ 382
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 96,600 searches. Data last updated 31 July 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

Tue 19/8

1:45 p.m.-5:32 p.m.

1 stop6h 47m

Seattle/Tacoma Intl

Wed 27/8

6:34 p.m.-9:18 a.m.

1 stop11h 44m

C$ 311

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 18/8

11:11 a.m.-10:50 p.m.

1 stop14h 39m

Seattle/Tacoma Intl

Fri 29/8

9:13 a.m.-6:12 p.m.

1 stop5h 59m

C$ 343

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 23/8

7:40 a.m.-11:45 a.m.

1 stop7h 05m

Seattle/Tacoma Intl

Sat 30/8

12:40 p.m.-12:44 a.m.

1 stop9h 04m

C$ 354

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 1/10

6:30 a.m.-8:26 a.m.

Nonstop4h 56m

Seattle/Tacoma Intl

Tue 7/10

8:50 a.m.-4:14 p.m.

Nonstop4h 24m

C$ 356

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 23/8

7:40 a.m.-11:45 a.m.

1 stop7h 05m

Seattle/Tacoma Intl

Sat 30/8

12:40 p.m.-12:44 a.m.

1 stop9h 04m

C$ 357

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 30/8

6:50 p.m.-8:49 p.m.

Nonstop4h 59m

Seattle/Tacoma Intl

Sat 6/9

10:15 a.m.-10:37 p.m.

1 stop9h 22m

C$ 368

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 3/9

4:00 p.m.-10:25 p.m.

1 stop9h 25m

Seattle/Tacoma Intl

Wed 10/9

6:00 a.m.-1:12 p.m.

Nonstop4h 12m

C$ 369

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 17/9

4:51 p.m.-6:40 p.m.

Nonstop4h 49m

Seattle/Tacoma Intl

Wed 17/9

9:41 p.m.-5:07 a.m.

Nonstop4h 26m

C$ 403

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 6/9

7:00 a.m.-8:56 a.m.

Nonstop4h 56m

Seattle/Tacoma Intl

Mon 8/9

9:41 p.m.-5:07 a.m.

Nonstop4h 26m

C$ 405

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 6/9

7:00 a.m.-8:56 a.m.

Nonstop4h 56m

Seattle/Tacoma Intl

Mon 8/9

9:41 p.m.-5:07 a.m.

Nonstop4h 26m

C$ 425

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?

If you aren’t able to travel to Seattle during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 411.

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

Our data shows that Tuesday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 540. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 882. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.

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

Our most recent data shows that the best time of day to fly to Seattle is at noon. Flights from Detroit to Seattle during this time can be as low as C$ 298. Flights in the morning are often more expensive with an average ticket price of C$ 717.

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 C$ 521 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 C$ 466 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?

You could potentially save up to 50% on your flight if you consider stops on a Detroit to Seattle flight.

How have Detroit to Seattle flight prices changed over time?

As of July 2025, prices for Detroit to Seattle flights are approximately 5% more expensive 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

C$ 190

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 C$ 190. The best round-trip flight deal from Detroit to Seattle found on momondo in the last 72 hours is C$ 311.
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?

    The distance between Detroit and Seattle/Tacoma Intl is about 3108.8 km. 4h 49m is a normal flight duration for this route.

  • 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 refresh 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Detroit to Seattle/Tacoma Intl Airport.

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

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted 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 C$ 141Free CancellationRating
5.9
3,239 reviews
Search Frontier flights
DeltaPriceFrom C$ 178Free CancellationRating
8.0
7,981 reviews
Search Delta flights
Spirit AirlinesPriceFrom C$ 254Free CancellationRating
6.3
8,048 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom C$ 355Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
Hawaiian AirlinesPriceFrom C$ 385Free CancellationRating
7.8
2,611 reviews
Search Hawaiian Airlines flights

  • Delta Flights From Detroit to Seattle

    The lowest priced Delta flight from Detroit to Seattle from the last 72 hours was C$ 128. Generally, Delta has 33 flights on this route every week with an average price of C$ 322. Delta is rated 8.0/10 by our users.

  • Alaska Airlines Flights From Detroit to Seattle

    Another popular option for Detroit to Seattle flights is Alaska Airlines (8.0/10, 10,000 ratings). Alaska Airlines flies from Detroit to Seattle around 3 times per week, with deals starting from C$ 257 round-trip and rising to an average price of around C$ 391.

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Marysville
Lynnwood
SeaTac
Tacoma
Olympia
Ellensburg
Kirkland
Redmond
Ocean Shores
Shoreline
Tukwila
Renton
Mukilteo
Gig Harbor
Cle Elum
Poulsbo
Puyallup
Centralia
Kent

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Detroit to Seattle. momondo saves you time and could save you money on your trip.

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

All flight searches from Detroit to Seattle on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Detroit and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Seattle from Detroit are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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