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Cheap flights from Detroit Metropolitan Wayne County Airport to Seattle from C$ 307

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — SEA
23 Aug — 30 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Detroit Metropolitan Wayne County to Seattle/Tacoma Intl are usually found in January or February, booked 83 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Detroit to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Detroit to Seattle
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 24 July 2026.

Mon 9/119:59 p.m.
DTW
-
SEA
1 stop14h 52m
Frontier
Wed 18/117:41 p.m.
SEA
-
DTW
1 stop14h 24m
Frontier
Deal found 24/7C$ 484
Thu 10/95:25 a.m.
DTW
-
SEA
1 stop7h 11m
United Airlines
Sun 13/97:00 a.m.
SEA
-
DTW
1 stop8h 05m
United Airlines
Deal found 22/7C$ 486
Sat 7/117:05 a.m.
DTW
-
SEA
1 stop29h 46m
Frontier
Wed 18/117:41 p.m.
SEA
-
DTW
1 stop14h 24m
Frontier
Deal found 24/7C$ 487
Fri 21/812:20 p.m.
DTW
-
SEA
1 stop23h 59m
Frontier
Fri 28/81:35 p.m.
SEA
-
DTW
1 stop8h 38m
Frontier
Deal found 21/7C$ 488
Mon 17/87:40 a.m.
DTW
-
SEA
1 stop8h 37m
Frontier
Fri 28/81:35 p.m.
SEA
-
DTW
2 stops16h 45m
Frontier
Deal found 20/7C$ 491
Sat 12/97:34 a.m.
DTW
-
SEA
1 stop6h 58m
United Airlines
Tue 15/911:03 a.m.
SEA
-
DTW
2 stops9h 46m
United Airlines
Deal found 21/7C$ 493
Mon 24/87:55 a.m.
DTW
-
SEA
1 stop7h 25m
Frontier
Fri 28/87:06 p.m.
SEA
-
DTW
2 stops11h 14m
Frontier
Deal found 22/7C$ 498
Tue 20/105:30 a.m.
DTW
-
SEA
1 stop7h 06m
United Airlines
Tue 27/105:00 a.m.
SEA
-
DTW
2 stops9h 23m
United Airlines
Deal found 19/7C$ 507
Fri 16/105:30 a.m.
DTW
-
SEA
1 stop7h 06m
United Airlines
Wed 21/108:30 a.m.
SEA
-
DTW
2 stops9h 10m
United Airlines
Deal found 21/7C$ 521
Sat 10/1010:25 a.m.
DTW
-
SEA
1 stop8h 41m
United Airlines
Sat 17/107:00 a.m.
SEA
-
DTW
1 stop8h 05m
United Airlines
Deal found 19/7C$ 525
Fri 21/88:30 a.m.
DTW
-
SEA
1 stop29h 09m
Frontier
Sun 23/89:29 p.m.
SEA
-
DTW
1 stop29h 51m
Frontier
Deal found 21/7C$ 531

Find flight deals from Detroit to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTW) 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 24 July 2026.

Round-trip from

C$ 484

One-way from

C$ 307

Popular in

July

Cheapest in

January

Average price

C$ 695

Good round-trip deal

C$ 587 or less
Frontier
  • Frontier
  • 9/11-18/11
  • 2 total stops
  • 29h 16m total
  • Detroit to Seattle
Search Deals
United Airlines
  • United Airlines
  • 18/9
  • 1 total stop
  • 9h 39m total
  • Detroit to Seattle
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 164 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Detroit Metropolitan Wayne County to Seattle/Tacoma Intl.
Search Deals

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 629,999 searches. Data last updated 24 July 2026.
Use the filters below to find and compare flights from Detroit Metropolitan Wayne County Airport 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 30/9

7:00 a.m.-4:06 p.m.

2 stops12h 06m

Seattle/Tacoma Intl

Tue 6/10

11:13 p.m.-12:11 p.m.

2 stops9h 58m

C$ 541

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 19/9

5:25 a.m.-2:24 p.m.

2 stops11h 59m

Seattle/Tacoma Intl

Sat 26/9

10:48 p.m.-10:27 a.m.

1 stop8h 39m

C$ 546

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 19/8

2:07 p.m.-11:26 p.m.

2 stops12h 19m

Seattle/Tacoma Intl

Wed 26/8

5:20 p.m.-11:27 a.m.

2 stops15h 07m

C$ 553

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 21/8

5:41 p.m.-7:36 p.m.

Nonstop4h 55m

Seattle/Tacoma Intl

Fri 28/8

9:59 p.m.-5:22 a.m.

Nonstop4h 23m

C$ 587

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 17/8

7:01 a.m.-9:00 a.m.

Nonstop4h 59m

Seattle/Tacoma Intl

Fri 28/8

9:59 p.m.-5:22 a.m.

Nonstop4h 23m

C$ 587

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 17/8

12:35 p.m.-11:26 p.m.

2 stops13h 51m

Seattle/Tacoma Intl

Tue 25/8

9:05 a.m.-11:54 p.m.

2 stops11h 49m

C$ 591

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 29/9

2:48 p.m.-10:56 p.m.

2 stops11h 08m

Seattle/Tacoma Intl

Mon 5/10

11:13 p.m.-12:11 p.m.

2 stops9h 58m

C$ 598
Quickest round-trip

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 28/8

6:00 a.m.-7:49 a.m.

Nonstop4h 49m

Seattle/Tacoma Intl

Sat 5/9

11:10 p.m.-6:23 a.m.

Nonstop4h 13m

C$ 601

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 11/11

5:43 p.m.-7:49 p.m.

Nonstop5h 06m

Seattle/Tacoma Intl

Sat 14/11

9:22 a.m.-4:47 p.m.

Nonstop4h 25m

C$ 601

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 11/11

5:43 p.m.-7:49 p.m.

Nonstop5h 06m

Seattle/Tacoma Intl

Mon 16/11

9:22 a.m.-4:47 p.m.

Nonstop4h 25m

C$ 602

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/7

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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.
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 Metropolitan Wayne County Airport to Seattle

How far ahead should I book a flight from Detroit Metropolitan Wayne County Airport to Seattle?

To ensure you get the cheapest price possible for a flight from Detroit Metropolitan Wayne County Airport to Seattle, you should look to book at least 82 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Detroit Metropolitan Wayne County Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Seattle (average of C$ 405). Flying from Detroit Metropolitan Wayne County Airport to Seattle in July is currently the most expensive (average of C$ 695). 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 DTW 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 24 July 2026.

One of the essential ways to save on airfare from Detroit Metropolitan Wayne County Airport to Seattle is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 44% on airfare.

How much does it cost to fly round-trip from Detroit Metropolitan Wayne County Airport to Seattle?

Airfare is below average for this route at the moment.

Detroit Metropolitan Wayne County Airport to Seattle flights typically cost between C$ 529 and C$ 828 in November.
The cheapest round-trip price found within the last 5 days was C$ 484 on Frontier (9 Nov-18 Nov).

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 24 July 2026.
Check out reviews from past customers who have flown with Alaska Airlines,Delta, andFrontier from Detroit Metropolitan Wayne County Airport to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,706 reviews
Check prices

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Alaska Airlines
7.9
Good
12,706 reviews
Alaska Airlines
7.9
Good
12,706 reviews
Check prices

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Delta
7.8
Good
8,482 reviews
Alaska Airlines
7.9
Good
12,706 reviews
Check prices

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Frontier
5.6
Fair
2,770 reviews
Alaska Airlines
7.9
Good
12,706 reviews
Check prices

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.

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.

  • What airports do I use to fly from Detroit to Seattle?

    If you book a flight from Detroit to Seattle, you will be flying from Detroit Metropolitan Wayne County to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Detroit Metropolitan Wayne County (DTW) take 4h 49m for a nonstop flight. There are 16 flights from Detroit Metropolitan Wayne County to Seattle per day from 3 airlines.

  • How long is the flight from Detroit Metropolitan Wayne County Airport to Seattle?

    United Airlines and Alaska Airlines can get you from Detroit Metropolitan Wayne County Airport to Seattle in just under 4h 55m. Your travel time can differ by up to 7h 11m. The distance between Detroit Metropolitan Wayne County Airport and Seattle is about 3090 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Detroit Metropolitan Wayne County Airport to Seattle round-trip?

    Our cheapest airline available from Detroit Metropolitan Wayne County Airport to Seattle is Alaska Airlines. Our recent data shows that you can find tickets from as low as C$ 269 on this airline. Additional options worth looking into are Frontier and Delta, starting at C$ 276 and C$ 293 round-trip. Users have found that Alaska Airlines is 50% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Detroit Metropolitan Wayne County Airport to Seattle?

    Consider WestJet (100%), KLM (87%) or Alaska Airlines (86%) when booking your flight. These represent the most reliable airlines when flying from Detroit Metropolitan Wayne County Airport to Seattle.

  • What are the cheapest flights from Detroit Metropolitan Wayne County Airport to Seattle?

    While on average a flight from Detroit Metropolitan Wayne County Airport to Seattle is generally C$ 686, our data shows the cheapest flight currently is C$ 434. When looking at the most popular route, (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl), you can expect to pay C$ 476 for that flight.

  • Can I find deals for flights from Detroit to Seattle that include hotel bookings?

    Yes. In addition to deals on Detroit to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Detroit to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Detroit to Seattle.

  • Can I find deals for business class flights from Detroit to Seattle?

    Yes. Cheapflights offers flight deals from Detroit to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Detroit Metropolitan Wayne County Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Seattle (average of C$ 405). Flying from Detroit Metropolitan Wayne County Airport to Seattle in July is currently the most expensive (average of C$ 695). 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.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Kent
Leavenworth
Mukilteo
Tacoma
Renton
Cashmere
Lynnwood
Ellensburg
Tukwila
Olympia
Marysville
Federal Way
Kirkland

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Alternative routes for Detroit to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Detroit to Portland flights

Top 3 airlines flying from Detroit to Seattle

Discover the top 3 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 629,999 searches. Data last updated 24 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapestC$ 269AverageC$ 559FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
FrontierCheapestC$ 276AverageC$ 376FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapestC$ 293AverageC$ 488FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Detroit to Seattle?

Deals for Detroit to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Detroit to Seattle?

Cheapflights simply makes it quick and affordable to book flights from Detroit to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Detroit to Seattle with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Detroit to Seattle flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Detroit to Seattle become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Detroit today and book when prices fit your budget.

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