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Cheap flights from Detroit to Seattle from C$ 152

DTT — SEA
4 Dec — 11 Dec1
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 March, booked 70 days in advance, depart on a Tuesday or Saturday and return on a Monday

Cheap flight deals from Detroit to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Detroit to Seattle

Fri 4/127:58 p.m. -
1 stop6h 55m
Sun 6/126:00 a.m. -
Nonstop4h 11m
Deal found 4/11C$ 373
Thu 3/127:58 p.m. -
1 stop6h 55m
Sun 6/1211:15 p.m. -
Nonstop4h 15m
Deal found 4/11C$ 387
Sun 13/126:16 p.m. -
1 stop7h 27m
Wed 16/1210:25 a.m. -
2 stops10h 19m
Deal found 1/11C$ 394
Tue 1/126:18 p.m. -
Nonstop5h 13m
Mon 7/1210:03 a.m. -
Nonstop4h 17m
Deal found 31/10C$ 401
Thu 17/126:20 a.m. -
Nonstop5h 19m
Wed 30/129:40 p.m. -
Nonstop4h 20m
Deal found 31/10C$ 403
Tue 22/127:15 a.m. -
1 stop12h 55m
Tue 29/126:25 p.m. -
1 stop8h 55m
Deal found 31/10C$ 413
Thu 10/128:55 a.m. -
Nonstop5h 15m
Thu 10/125:37 p.m. -
1 stop8h 45m
Deal found 3/11C$ 415
Wed 16/126:18 p.m. -
Nonstop5h 13m
Fri 25/129:48 a.m. -
Nonstop4h 19m
Deal found 2/11C$ 429
Tue 22/127:15 a.m. -
1 stop12h 55m
Mon 28/121:37 p.m. -
1 stop8h 21m
Deal found 31/10C$ 435
Thu 10/127:05 a.m. -
1 stop7h 39m
Tue 15/125:05 a.m. -
2 stops9h 01m
Deal found 3/11C$ 436
Wed 2/128:25 a.m. -
1 stop8h 58m
Sat 5/125:05 a.m. -
2 stops9h 01m
Deal found 1/11C$ 441
Tue 22/127:15 a.m. -
1 stop12h 55m
Sat 26/127:47 p.m. -
1 stop7h 33m
Deal found 31/10C$ 442

Find flight deals from Detroit to Seattle

Round-trip from

C$ 373

One-way from

C$ 152

Popular in

June

Cheapest in

January

Average price

C$ 710

Good round-trip deal

C$ 527 or less

Good one-way deal

C$ 316 or less
Delta
  • Delta
  • 4/12-6/12
  • 2 total stops
  • 16h 53m total
  • Detroit to Seattle
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Southwest
  • Southwest
  • 6/12-31/12
  • 1 total stop
  • 7h 50m total
  • Detroit to Seattle
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 121 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 21 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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Price to beat on a round-trip flight from Detroit (DTT) to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Detroit (DTT) to Seattle/Tacoma Intl.
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Cheapflights Fare Finder

 
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 Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Sun 6/12

7:45 p.m.-12:35 a.m.

1 stop7h 50m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 152

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Mon 14/12

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

1 stop7h 00m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 152

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Wed 16/12

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

1 stop7h 00m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 152
Quickest round-trip

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Wed 16/12

7:55 p.m.-10:03 p.m.

Nonstop5h 08m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 180

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Sat 23/1

10:25 a.m.-6:12 p.m.

2 stops10h 47m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 285

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Wed 16/12

7:05 a.m.-9:21 p.m.

3 stops17h 16m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 292

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Fri 18/12

3:45 p.m.-1:10 a.m.

2 stops12h 25m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 313

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Mon 1/2

5:25 a.m.-1:10 p.m.

2 stops10h 45m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 313

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Thu 24/12

4:15 p.m.-10:50 p.m.

1 stop9h 35m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 313

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Wed 25/11

4:10 p.m.-11:15 p.m.

2 stops10h 05m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 320

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/10

Showing 1-10 of 21 resultsSorted by cheapest first
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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

Cheapflights Insights

Everything you need to know about your flight from Detroit to Seattle

What is the cheapest month to book a flight from Detroit to Seattle?

Currently, January is the cheapest month in which you can book a flight from Detroit to Seattle (average of C$ 375). Flying from Detroit 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 DTT to SEA?

When flying from Detroit to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 41% versus a flight at noon.

Weekly flight availability from Detroit to Seattle

The most flights from DTT to SEA are scheduled on a Monday (18 on average). You will have fewer flight options on Sunday, 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?

Airfare is below average for this route at the moment.
Detroit to Seattle flights typically cost between C$ 585 and C$ 898 in December.
The cheapest round-trip price found within the last 5 days was C$ 373 on Delta (4 Dec-6 Dec).

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

Denver (DEN) – chosen by Cheapflights users on 80% of one-stop itineraries from Detroit to Seattle on Cheapflights.

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

Chicago (MDW) is the most affordable 1-stop option, with an average round-trip price of C$ 303.

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

Flights via Chicago (MDW) have the shortest average one-way travel time for 1-stop routes: 6h 55m.

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

Flights via Chicago (MDW) offer the fastest connection on this route, with an average layover time of 1h 25m.

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

To ensure you get the cheapest price possible for a flight from Detroit to Seattle, you should look to book at least 69 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.

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Detroit to Seattle, such as Alaska Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
13,142 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

7.9

Crew

8.5

Boarding

8.1

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
13,142 reviews
Alaska Airlines
7.9
Good
13,142 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

7.9

Crew

8.5

Boarding

8.1

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

  • 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 5h 03m 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 5h 09m. Alaska Airlines provides one of the quickest options available for as low as C$ 529. 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?

    Frontier, at C$ 216, was found to be the cheapest airline from Detroit to Seattle.Alternate airlines to your destination round-trip include Alaska Airlines and Delta. These flights start at 61% 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 KLM (95%), Alaska Airlines (89%) or Cathay Pacific (88%) 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$ 221. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for C$ 467 on average, our data indicates C$ 586 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, January is the cheapest month in which you can book a flight from Detroit to Seattle (average of C$ 375). Flying from Detroit 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
Tukwila
Mukilteo
Ellensburg
Renton
Lynnwood
Cashmere
Tacoma
Marysville
Federal Way
Kirkland
Leavenworth

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Detroit to Seattle

Detroit to Seattle flights
Detroit to Portland flights
O'Hare Intl to Seattle flights

Top 3 airlines flying from Detroit to Seattle

AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 216AverageC$ 477FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Alaska AirlinesCheapestC$ 267AverageC$ 625FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
DeltaCheapestC$ 291AverageC$ 501FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

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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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