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Cheap flights from Detroit to Seattle from C$ 220

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 4/11. 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
12:28 p.m. - 9:36 a.m.DTW-SEA
24h 08m1 stop
Sun Country Air Logo
6:20 p.m. - 11:19 a.m.SEA-DTW
13h 59m1 stop
C$ 373Sun Country Air
Find Deal
Sun, 21 Dec - Wed, 31 Dec
United Airlines Logo
5:35 p.m. - 11:15 p.m.DTW-SEA
8h 40m1 stop
United Airlines Logo
7:00 a.m. - 4:45 p.m.SEA-DTW
6h 45m1 stop
C$ 376United Airlines
Find Deal
Tue, 18 Nov - Wed, 19 Nov
Delta Logo
8:01 p.m. - 10:03 p.m.DTW-SEA
5h 02mdirect
Delta Logo
6:00 a.m. - 1:20 p.m.SEA-DTW
4h 20mdirect
C$ 383Delta
Find Deal
Tue, 14 Oct - Sat, 25 Oct
JetBlue Logo
12:16 p.m. - 10:21 p.m.DTW-SEA
13h 05m1 stop
JetBlue Logo
11:56 p.m. - 11:30 a.m.SEA-DTW
8h 34m1 stop
C$ 385JetBlue
Find Deal
Wed, 15 Oct - Wed, 22 Oct
Delta Logo
8:02 p.m. - 10:15 p.m.DTW-SEA
5h 13mdirect
Delta Logo
6:00 a.m. - 1:22 p.m.SEA-DTW
4h 22mdirect
C$ 396Delta
Find Deal
Sat, 13 Dec - Thu, 8 Jan
Southwest Logo
12:55 p.m. - 10:30 p.m.DTW-SEA
12h 35m2 stops
Southwest Logo
6:35 a.m. - 7:50 p.m.SEA-DTW
10h 15m1 stop
C$ 412Southwest
Find Deal
Tue, 16 Dec - Mon, 5 Jan
Southwest Logo
8:00 a.m. - 6:40 p.m.DTW-SEA
13h 40m1 stop
Southwest Logo
7:25 a.m. - 8:10 p.m.SEA-DTW
9h 45m1 stop
C$ 417Southwest
Find Deal
Wed, 10 Dec - Fri, 12 Dec
Alaska Airlines Logo
5:41 p.m. - 7:51 p.m.DTW-SEA
5h 10mdirect
Alaska Airlines Logo
10:01 p.m. - 5:20 a.m.SEA-DTW
4h 19mdirect
C$ 452Alaska Airlines
Find Deal
Wed, 17 Dec - Sun, 4 Jan
JetBlue Logo
12:16 p.m. - 10:20 p.m.DTW-SEA
13h 04m1 stop
JetBlue Logo
11:40 p.m. - 11:30 a.m.SEA-DTW
8h 50m1 stop
C$ 456JetBlue
Find Deal
Wed, 1 Oct - Sat, 11 Oct
Alaska Airlines Logo
6:40 a.m. - 8:49 a.m.DTW-SEA
5h 09mdirect
Alaska Airlines Logo
10:01 p.m. - 5:20 a.m.SEA-DTW
4h 19mdirect
C$ 493Alaska Airlines
Find Deal
Sat, 20 Dec - Mon, 22 Dec

Delta flights from Detroit to Seattle

Our best Delta deals on Detroit to Seattle flight tickets
Delta
14 Oct
DTW8:01 p.m.Detroit Metropolitan Wayne County
5h 02m
SEA10:03 p.m.Seattle/Tacoma Intl
25 Oct
SEA6:00 a.m.Seattle/Tacoma Intl
4h 20m
DTW1:20 p.m.Detroit Metropolitan Wayne County
C$ 383
Find similar
Delta
13 Dec
DTW8:02 p.m.Detroit Metropolitan Wayne County
5h 13m
SEA10:15 p.m.Seattle/Tacoma Intl
8 Jan
SEA6:00 a.m.Seattle/Tacoma Intl
4h 22m
DTW1:22 p.m.Detroit Metropolitan Wayne County
C$ 396
Find similar
Delta
15 Dec
DTW6:00 p.m.Detroit Metropolitan Wayne County
8h 58m
1 stop
SEA11:58 p.m.Seattle/Tacoma Intl
6 Jan
SEA6:00 a.m.Seattle/Tacoma Intl
4h 22m
DTW1:22 p.m.Detroit Metropolitan Wayne County
C$ 410
Find similar

United Airlines flights from Detroit to Seattle

Our best United Airlines deals on Detroit to Seattle flight tickets
United Airlines
18 Nov
DTW5:35 p.m.Detroit Metropolitan Wayne County
8h 40m
1 stop
SEA11:15 p.m.Seattle/Tacoma Intl
19 Nov
SEA7:00 a.m.Seattle/Tacoma Intl
6h 45m
1 stop
DTW4:45 p.m.Detroit Metropolitan Wayne County
C$ 376
Find similar
United Airlines
7 Oct
DTW6:05 p.m.Detroit Metropolitan Wayne County
7h 25m
1 stop
SEA10:30 p.m.Seattle/Tacoma Intl
21 Oct
SEA5:00 a.m.Seattle/Tacoma Intl
8h 51m
2 stops
DTW4:51 p.m.Detroit Metropolitan Wayne County
C$ 390
Find similar
United Airlines
14 Oct
DTW2:13 p.m.Detroit Metropolitan Wayne County
7h 36m
1 stop
SEA6:49 p.m.Seattle/Tacoma Intl
18 Oct
SEA5:00 a.m.Seattle/Tacoma Intl
8h 51m
2 stops
DTW4:51 p.m.Detroit Metropolitan Wayne County
C$ 403
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 16 September 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

Sun 21/12

12:28 p.m.-9:36 a.m.

1 stop24h 08m

Seattle/Tacoma Intl

Wed 31/12

6:20 p.m.-11:19 a.m.

1 stop13h 59m

C$ 373

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 18/11

5:35 p.m.-11:15 p.m.

1 stop8h 40m

Seattle/Tacoma Intl

Wed 19/11

7:00 a.m.-4:45 p.m.

1 stop6h 45m

C$ 376

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 14/10

8:01 p.m.-10:03 p.m.

Nonstop5h 02m

Seattle/Tacoma Intl

Sat 25/10

6:00 a.m.-1:20 p.m.

Nonstop4h 20m

C$ 383

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 15/10

12:16 p.m.-10:21 p.m.

1 stop13h 05m

Seattle/Tacoma Intl

Wed 22/10

11:56 p.m.-11:30 a.m.

1 stop8h 34m

C$ 385

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 13/12

8:02 p.m.-10:15 p.m.

Nonstop5h 13m

Seattle/Tacoma Intl

Thu 8/1

6:00 a.m.-1:22 p.m.

Nonstop4h 22m

C$ 396

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 16/12

12:55 p.m.-10:30 p.m.

2 stops12h 35m

Seattle/Tacoma Intl

Mon 5/1

6:35 a.m.-7:50 p.m.

1 stop10h 15m

C$ 412

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 10/12

8:00 a.m.-6:40 p.m.

1 stop13h 40m

Seattle/Tacoma Intl

Fri 12/12

7:25 a.m.-8:10 p.m.

1 stop9h 45m

C$ 417

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 17/12

5:41 p.m.-7:51 p.m.

Nonstop5h 10m

Seattle/Tacoma Intl

Sun 4/1

10:01 p.m.-5:20 a.m.

Nonstop4h 19m

C$ 452

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 1/10

12:16 p.m.-10:20 p.m.

1 stop13h 04m

Seattle/Tacoma Intl

Sat 11/10

11:40 p.m.-11:30 a.m.

1 stop8h 50m

C$ 456

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 20/12

6:40 a.m.-8:49 a.m.

Nonstop5h 09m

Seattle/Tacoma Intl

Mon 22/12

10:01 p.m.-5:20 a.m.

Nonstop4h 19m

C$ 493

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$ 410.

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$ 577. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 906. 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$ 297. Flights in the morning are often more expensive with an average ticket price of C$ 740.

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$ 520 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$ 479 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 4% 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 September 2025, prices for Detroit to Seattle flights are approximately 6% 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$ 575

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$ 575. The best round-trip flight deal from Detroit to Seattle found on momondo in the last 72 hours is C$ 542.
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. 5h 02m 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
DeltaPriceFrom C$ 177Free CancellationRating
7.9
7,954 reviews
Search Delta flights
Spirit AirlinesPriceFrom C$ 254Free CancellationRating
6.3
8,015 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom C$ 354Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
Hawaiian AirlinesPriceFrom C$ 369Free CancellationRating
7.8
2,724 reviews
Search Hawaiian Airlines 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$ 257. Generally, Alaska Airlines has 9 flights on this route every week with an average price of C$ 395. Alaska Airlines is rated 8.0/10 by our users.

  • Delta Flights From Detroit to Seattle

    Another popular option for Detroit to Seattle flights is Delta (7.9/10, 7,954 ratings). Delta flies from Detroit to Seattle around 23 times per week, with deals starting from C$ 128 round-trip and rising to an average price of around C$ 340.

Travelling to a place near Seattle?

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

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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