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Cheap flights from Detroit to Seattle from C$ 103

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 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SEA
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Detroit All airports to Seattle/Tacoma Intl are usually found in January or February, booked 74 days in advance, depart on a Tuesday or Saturday and return on a Sunday

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 10 March 2026.

Fri 8/510:27 p.m.
DTW
-
SEA
1 stop14h 00m
Multiple Airlines
Sat 16/510:42 a.m.
SEA
-
DTW
1 stop17h 38m
Multiple Airlines
Deal found 9/3C$ 316
Fri 3/43:29 p.m.
DTW
-
SEA
1 stop10h 04m
United Airlines
Sun 12/411:59 p.m.
SEA
-
DTW
1 stop6h 44m
United Airlines
Deal found 5/3C$ 349
Wed 1/43:29 p.m.
DTW
-
SEA
2 stops10h 58m
United Airlines
Wed 8/42:39 p.m.
SEA
-
DTW
1 stop6h 20m
United Airlines
Deal found 5/3C$ 356
Sun 24/512:16 p.m.
DTW
-
SEA
1 stop10h 43m
Frontier
Wed 27/59:14 p.m.
SEA
-
DTW
1 stop11h 05m
Frontier
Deal found 5/3C$ 368
Wed 8/44:52 p.m.
DTW
-
SEA
Nonstop5h 04m
Hawaiian Airlines
Wed 15/48:35 a.m.
SEA
-
DTW
Nonstop4h 24m
Hawaiian Airlines
Deal found 9/3C$ 373
Wed 1/44:29 p.m.
DTW
-
SEA
Nonstop4h 57m
Delta
Wed 8/46:00 a.m.
SEA
-
DTW
Nonstop4h 09m
Delta
Deal found 9/3C$ 376
Thu 2/46:00 a.m.
DTW
-
SEA
1 stop8h 48m
United Airlines
Thu 9/411:59 p.m.
SEA
-
DTW
1 stop6h 44m
United Airlines
Deal found 5/3C$ 391

Find flight deals from Detroit to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) 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 10 March 2026.

Round-trip from

C$ 316

One-way from

C$ 103

Popular in

October

Cheapest in

January

Average price

C$ 403

Good round-trip deal

C$ 259 or less

Good one-way deal

C$ 197 or less
8/5-16/5
  • 8/5-16/5
  • 2 total stops
  • 31h 38m total
  • Detroit to Seattle
Search Deals
Frontier
  • Frontier
  • 15/5
  • 1 total stop
  • 14h 00m total
  • Detroit to Seattle
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 57 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 March 2026
Search Deals
Price to beat on a round-trip flight from Detroit (DTT) to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Detroit (DTT) 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 10 March 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

Fri 8/5

9:10 a.m.-11:05 a.m.

Nonstop4h 55m

Seattle/Tacoma Intl

Sat 16/5

5:30 a.m.-12:52 p.m.

Nonstop4h 22m

C$ 423

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Thu 28/5

7:09 a.m.-9:10 a.m.

Nonstop5h 01m

Seattle/Tacoma Intl

Mon 1/6

10:23 p.m.-5:49 a.m.

Nonstop4h 26m

C$ 471
Quickest round-trip

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 6/7

6:00 a.m.-7:55 a.m.

Nonstop4h 55m

Seattle/Tacoma Intl

Tue 14/7

6:00 a.m.-1:19 p.m.

Nonstop4h 19m

C$ 471

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 2/9

4:46 p.m.-6:47 p.m.

Nonstop5h 01m

Seattle/Tacoma Intl

Wed 9/9

9:45 p.m.-5:05 a.m.

Nonstop4h 20m

C$ 471

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sun 17/5

8:55 p.m.-10:48 p.m.

Nonstop4h 53m

Seattle/Tacoma Intl

Mon 25/5

5:30 a.m.-12:52 p.m.

Nonstop4h 22m

C$ 471

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 5/8

7:00 a.m.-1:20 p.m.

1 stop9h 20m

Seattle/Tacoma Intl

Wed 12/8

5:20 a.m.-3:00 p.m.

1 stop6h 40m

C$ 498

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 2/9

1:45 p.m.-6:10 p.m.

1 stop7h 25m

Seattle/Tacoma Intl

Wed 9/9

6:25 a.m.-6:15 p.m.

1 stop8h 50m

C$ 498

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 18/7

8:00 p.m.-10:05 p.m.

Nonstop5h 05m

Seattle/Tacoma Intl

Mon 27/7

11:05 p.m.-6:27 a.m.

Nonstop4h 22m

C$ 506
Cheapest one-way

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 8/4

7:40 p.m.-12:10 a.m.

1 stop7h 30m

C$ 202

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 4/4

4:52 p.m.-6:56 p.m.

Nonstop5h 04m

C$ 216

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/3

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 to Seattle

How far ahead should I book a flight from Detroit to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Detroit to Seattle. Price data was last updated on 6 March 2026.

To ensure you get the cheapest price possible for a flight from Detroit to Seattle, you should look to book at least 74 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 to Seattle?

Currently, November is the cheapest month in which you can book a flight from Detroit to Seattle (average of C$ 237). Flying from Detroit to Seattle in August is currently the most expensive (average of C$ 357). 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 DTT 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 10 March 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Detroit to Seattle as you normally would.

Weekly flight availability from Detroit to Seattle

Explore weekly flight availability from Detroit to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 10 March 2026.

The most flights from DTT to SEA are scheduled on a Sunday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost to fly round-trip from Detroit to Seattle?

What’s the top layover airport for flights from Detroit to Seattle?

Share of one-stop round-trip flights from Detroit to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.

Denver (DEN) – chosen by Cheapflights users on 56% of one-stop itineraries from Detroit to Seattle on Cheapflights.

What’s the cheapest layover airport for flights from Detroit to Seattle?

Average round-trip fare for 1-stop flights from Detroit to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of C$ 348.

What’s the fastest layover option from Detroit to Seattle?

Shortest average travel time for 1-stop one-way flights from Detroit to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 6h 50m.

Which airport typically offers the quickest layover for flights from Detroit to Seattle?

Average layover duration for 1-stop one-way flights from Detroit to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Chicago (MDW) offer the fastest connection on this route, with an average layover time of 1h 33m.

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 10 March 2026.
Read through reviews of airlines operating flights from Detroit to Seattle, such as Alaska Airlines,Delta, andHawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
12,018 reviews
Check prices

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
8.0
Very good
12,018 reviews
Alaska Airlines
8.0
Very good
12,018 reviews
Check prices

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Delta
7.9
Good
8,276 reviews
Alaska Airlines
8.0
Very good
12,018 reviews
Check prices

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Hawaiian Airlines
7.8
Good
2,837 reviews
Alaska Airlines
8.0
Very good
12,018 reviews
Check prices

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Frontier
5.7
Fair
3,033 reviews
Alaska Airlines
8.0
Very good
12,018 reviews
Check prices

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

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 All airports to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Detroit All airports (DTT) take 4h 53m for a nonstop flight. There are 12 flights from All airports to Seattle per day from 3 airlines.

  • How long is the flight from Detroit to Seattle?

    A quick flight from Detroit to Seattle can take about 4h 55m. Delta provides one of the quickest options available for as low as C$ 423. Detroit and Seattle are separated by a distance of 3090 km. Most flights are nonstop.

  • What are the cheapest airlines flying from Detroit to Seattle round-trip?

    Delta, at C$ 173, was found to be the cheapest airline from Detroit to Seattle.Alternate airlines to your destination round-trip include Hawaiian Airlines and Alaska Airlines. These flights start at 63% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Detroit to Seattle?

    No one likes to see their flight delayed. When booking a flight from Detroit to Seattle consider choosing Japan Airlines (77%), Air Tahiti Nui (75%) or American Airlines (75%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Detroit to Seattle?

    Looking at all options, your cheapest flight can be booked for C$ 154. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for C$ 468 on average, our data indicates C$ 348 when flying from Detroit to Seattle.

  • 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 to Seattle?

    Currently, November is the cheapest month in which you can book a flight from Detroit to Seattle (average of C$ 237). Flying from Detroit to Seattle in August is currently the most expensive (average of C$ 357). 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
Leavenworth
Mukilteo
Tacoma
Kent
Bothell
Cashmere
Tukwila
Olympia
Renton
Marysville
Lynnwood
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 Seattle flights
O'Hare Intl to Seattle flights
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 10 March 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 173AverageC$ 450FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Hawaiian AirlinesCheapestC$ 237AverageC$ 501FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Alaska AirlinesCheapestC$ 259AverageC$ 533FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights makes it easy to find Detroit to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Detroit to Seattle for you. Better yet — we are completely free to use.

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

Yes! Cheapflights helps users easily find flights from Detroit to Seattle with no change fees.

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

Yes, Cheapflights offers price alerts on Detroit to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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