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Cheap flights from Detroit to Seattle from C$ 303

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 14/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Detroit to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:44 p.m. - 11:36 p.m.
DTW
-
SEA
9h 52m
1 stop
United Airlines Logo
7:35 p.m. - 11:27 a.m.
SEA
-
DTW
12h 52m
2 stops
C$ 537United Airlines
Wed, 9 Sep - Wed, 16 Sep
Frontier Logo
1:19 p.m. - 9:17 a.m.
DTW
-
SEA
22h 58m
1 stop
Frontier Logo
2:22 p.m. - 11:59 p.m.
SEA
-
DTW
6h 37m
1 stop
C$ 539Frontier
Tue, 28 Jul - Thu, 6 Aug
Frontier Logo
7:55 a.m. - 12:20 p.m.
DTW
-
SEA
7h 25m
1 stop
Frontier Logo
7:00 a.m. - 12:24 a.m.
SEA
-
DTW
14h 24m
1 stop
C$ 540Frontier
Mon, 7 Sep - Wed, 16 Sep
JetBlue Logo
2:46 p.m. - 10:53 p.m.
DTW
-
SEA
11h 07m
1 stop
JetBlue Logo
11:45 p.m. - 12:25 p.m.
SEA
-
DTW
9h 40m
1 stop
C$ 543JetBlue
Wed, 26 Aug - Mon, 31 Aug
United Airlines Logo
12:30 p.m. - 9:15 p.m.
DTW
-
SEA
11h 45m
2 stops
United Airlines Logo
8:10 a.m. - 7:01 p.m.
SEA
-
DTW
7h 51m
1 stop
C$ 544United Airlines
Wed, 21 Oct - Tue, 27 Oct
United Airlines Logo
2:10 p.m. - 9:31 p.m.
DTW
-
SEA
10h 21m
2 stops
United Airlines Logo
5:20 p.m. - 9:38 a.m.
SEA
-
DTW
13h 18m
2 stops
C$ 546United Airlines
Sat, 5 Sep - Tue, 15 Sep
United Airlines Logo
5:25 a.m. - 9:35 a.m.
DTW
-
SEA
7h 10m
1 stop
United Airlines Logo
11:03 a.m. - 11:49 p.m.
SEA
-
DTW
9h 46m
2 stops
C$ 547United Airlines
Thu, 3 Sep - Wed, 9 Sep
JetBlue Logo
1:15 p.m. - 10:53 p.m.
DTW
-
SEA
12h 38m
1 stop
JetBlue Logo
11:44 p.m. - 11:20 a.m.
SEA
-
DTW
8h 36m
1 stop
C$ 549JetBlue
Wed, 2 Sep - Tue, 8 Sep
JetBlue Logo
1:15 p.m. - 10:53 p.m.
DTW
-
SEA
12h 38m
1 stop
JetBlue Logo
11:44 p.m. - 2:03 p.m.
SEA
-
DTW
11h 19m
1 stop
C$ 550JetBlue
Tue, 1 Sep - Mon, 7 Sep
United Airlines Logo
12:30 p.m. - 9:15 p.m.
DTW
-
SEA
11h 45m
2 stops
United Airlines Logo
7:35 p.m. - 9:33 a.m.
SEA
-
DTW
10h 58m
2 stops
C$ 552United Airlines
Wed, 21 Oct - Tue, 27 Oct

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Alaska Airlines flights from Detroit to Seattle

Our best Alaska Airlines deals on Detroit to Seattle flight tickets
Alaska Airlines
3 Sep
DTW7:01 a.m.Detroit Metropolitan Wayne County
4h 53m
SEA8:54 a.m.Seattle/Tacoma Intl
5 Sep
SEA9:23 a.m.Seattle/Tacoma Intl
4h 20m
DTW4:43 p.m.Detroit Metropolitan Wayne County
C$ 617
Alaska Airlines
13 Jul
DTW7:01 a.m.Detroit Metropolitan Wayne County
4h 59m
SEA9:00 a.m.Seattle/Tacoma Intl
22 Jul
SEA10:22 p.m.Seattle/Tacoma Intl
4h 19m
DTW5:41 a.m.Detroit Metropolitan Wayne County
C$ 806

JetBlue flights from Detroit to Seattle

Our best JetBlue deals on Detroit to Seattle flight tickets
JetBlue
26 Aug
DTW2:46 p.m.Detroit Metropolitan Wayne County
11h 07m
1 stop
SEA10:53 p.m.Seattle/Tacoma Intl
31 Aug
SEA11:45 p.m.Seattle/Tacoma Intl
9h 40m
1 stop
DTW12:25 p.m.Detroit Metropolitan Wayne County
C$ 543
JetBlue
2 Sep
DTW1:15 p.m.Detroit Metropolitan Wayne County
12h 38m
1 stop
SEA10:53 p.m.Seattle/Tacoma Intl
8 Sep
SEA11:44 p.m.Seattle/Tacoma Intl
8h 36m
1 stop
DTW11:20 a.m.Detroit Metropolitan Wayne County
C$ 549
JetBlue
1 Sep
DTW1:15 p.m.Detroit Metropolitan Wayne County
12h 38m
1 stop
SEA10:53 p.m.Seattle/Tacoma Intl
7 Sep
SEA11:44 p.m.Seattle/Tacoma Intl
11h 19m
1 stop
DTW2:03 p.m.Detroit Metropolitan Wayne County
C$ 550

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 2 July 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

Price

Cheapest round-trip

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 9/9

4:44 p.m.-11:36 p.m.

1 stop9h 52m

Seattle/Tacoma Intl

Wed 16/9

7:35 p.m.-11:27 a.m.

2 stops12h 52m

C$ 537

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 28/7

1:19 p.m.-9:17 a.m.

1 stop22h 58m

Seattle/Tacoma Intl

Thu 6/8

2:22 p.m.-11:59 p.m.

1 stop6h 37m

C$ 539

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 7/9

7:55 a.m.-12:20 p.m.

1 stop7h 25m

Seattle/Tacoma Intl

Wed 16/9

7:00 a.m.-12:24 a.m.

1 stop14h 24m

C$ 540

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 26/8

2:46 p.m.-10:53 p.m.

1 stop11h 07m

Seattle/Tacoma Intl

Mon 31/8

11:45 p.m.-12:25 p.m.

1 stop9h 40m

C$ 543

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 21/10

12:30 p.m.-9:15 p.m.

2 stops11h 45m

Seattle/Tacoma Intl

Tue 27/10

8:10 a.m.-7:01 p.m.

1 stop7h 51m

C$ 544

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 5/9

2:10 p.m.-9:31 p.m.

2 stops10h 21m

Seattle/Tacoma Intl

Tue 15/9

5:20 p.m.-9:38 a.m.

2 stops13h 18m

C$ 546
Quickest round-trip

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Thu 3/9

5:25 a.m.-9:35 a.m.

1 stop7h 10m

Seattle/Tacoma Intl

Wed 9/9

11:03 a.m.-11:49 p.m.

2 stops9h 46m

C$ 547

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 2/9

1:15 p.m.-10:53 p.m.

1 stop12h 38m

Seattle/Tacoma Intl

Tue 8/9

11:44 p.m.-11:20 a.m.

1 stop8h 36m

C$ 549

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 1/9

1:15 p.m.-10:53 p.m.

1 stop12h 38m

Seattle/Tacoma Intl

Mon 7/9

11:44 p.m.-2:03 p.m.

1 stop11h 19m

C$ 550

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 21/10

12:30 p.m.-9:15 p.m.

2 stops11h 45m

Seattle/Tacoma Intl

Tue 27/10

7:35 p.m.-9:33 a.m.

2 stops10h 58m

C$ 552

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 April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of C$ 210.

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$ 500. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around C$ 884. 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 in the evening. Flights from Detroit to Seattle during this time can be as low as C$ 450. Flights in the morning are often more expensive with an average ticket price of C$ 671.

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 from Detroit 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$ 545 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$ 519 on momondo.

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

There are 4 cabin classes available to choose from on Detroit to Seattle 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 39% 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 2026, prices for Detroit to Seattle flights are approximately 30% 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

C$ 564

Fastest flight time

4h 49m

Direct flights

Every day

Airports in Seattle

1 airport
The best flight deal from Detroit to Seattle found on momondo in the last 72 hours is C$ 564
The fastest flight from Detroit to Seattle takes 4h 49m
Direct flights go from Detroit to Seattle every day.
There is 1 airport in Seattle. From Detroit there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

Frequently asked questions about flying from Detroit to Seattle

  • 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
Alaska AirlinesPriceFrom C$ 272Free CancellationRating
7.9
12,603 reviews
Search Alaska Airlines flights
DeltaPriceFrom C$ 296Free CancellationRating
7.8
8,452 reviews
Search Delta flights

  • Alaska Airlines Flights From Detroit to Seattle

    The lowest priced Alaska Airlines flight from Detroit to Seattle from the last 72 hours was C$ 272. Generally, Alaska Airlines has 4 flights on this route every week with an average price of C$ 564. Alaska Airlines is rated 7.9/10 by our users.

  • Delta Flights From Detroit to Seattle

    Another popular option for Detroit to Seattle flights is Delta (7.8/10, 8,452 ratings). Delta flies from Detroit to Seattle around 27 times per week, with deals starting from C$ 296 round-trip and rising to an average price of around C$ 493.

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Lynnwood
Leavenworth
Redmond
Kirkland
SeaTac
Tacoma
Marysville
Woodinville
Puyallup
Tukwila
Olympia
Ocean Shores
Ellensburg
Federal Way
Bainbridge Island
Gig Harbor
Renton
Kent
Shoreline
Edmonds

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.

An easier way to manage your Seattle trip

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