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Cheap flights from Detroit to Seattle from C$ 122

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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SEA
23 Mar — 30 Mar1
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 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 21 February 2026.

Fri 24/47:52 p.m.
DTW
-
SEA
Nonstop4h 58m
Delta
Mon 27/411:59 p.m.
SEA
-
DTW
1 stop5h 44m
Delta
Deal found 20/2C$ 283
Tue 28/412:55 p.m.
DTW
-
SEA
1 stop10h 42m
Delta
Sat 2/510:15 a.m.
SEA
-
DTW
1 stop9h 57m
Delta
Deal found 17/2C$ 297
Wed 18/38:15 p.m.
DTW
-
SEA
Nonstop5h 00m
Delta
Mon 23/35:55 p.m.
SEA
-
DTW
1 stop8h 05m
Delta
Deal found 18/2C$ 311
Thu 12/38:15 p.m.
DTW
-
SEA
Nonstop5h 00m
Delta
Mon 16/311:15 p.m.
SEA
-
DTW
Nonstop4h 12m
Delta
Deal found 19/2C$ 324
Sat 25/49:03 a.m.
DTW
-
SEA
1 stop7h 14m
United Airlines
Sat 2/58:51 a.m.
SEA
-
DTW
2 stops10h 17m
United Airlines
Deal found 20/2C$ 331
Fri 3/44:52 p.m.
DTW
-
SEA
Nonstop5h 04m
Alaska Airlines
Wed 8/48:35 a.m.
SEA
-
DTW
Nonstop4h 21m
Alaska Airlines
Deal found 20/2C$ 345
Wed 1/48:15 p.m.
DTW
-
SEA
Nonstop5h 00m
Delta
Tue 7/46:00 a.m.
SEA
-
DTW
Nonstop4h 09m
Delta
Deal found 19/2C$ 352
Sun 17/58:35 p.m.
DTW
-
SEA
Nonstop4h 53m
Delta
Mon 25/511:05 p.m.
SEA
-
DTW
Nonstop4h 25m
Delta
Deal found 20/2C$ 359
Fri 10/47:50 p.m.
DTW
-
SEA
1 stop7h 29m
United Airlines
Sun 12/411:59 p.m.
SEA
-
DTW
1 stop6h 44m
United Airlines
Deal found 18/2C$ 361
Tue 31/32:05 p.m.
DTW
-
SEA
1 stop7h 55m
United Airlines
Tue 31/311:05 p.m.
SEA
-
DTW
1 stop9h 02m
United Airlines
Deal found 17/2C$ 363
Sat 25/47:00 a.m.
DTW
-
SEA
1 stop10h 42m
Delta
Sun 26/46:00 a.m.
SEA
-
DTW
Nonstop4h 13m
Delta
Deal found 19/2C$ 365

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 21 February 2026.

Round-trip from

C$ 283

One-way from

C$ 122

Popular in

October

Cheapest in

January

Average price

C$ 420

Good round-trip deal

C$ 262 or less

Good one-way deal

C$ 198 or less
Delta
  • Delta
  • 24/4-28/4
  • 1 total stop
  • 14h 51m total
  • Detroit to Seattle
Search Deals
Frontier
  • Frontier
  • 3/4
  • 1 total stop
  • 26h 43m total
  • Detroit to Seattle
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 21 February 2026.
Use the filters below to find and compare flights from Detroit to Seattle that are best for you.

Fly from

Detroit

Fly to

Seattle

Route

Depart

Return

Price

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 24/4

7:52 p.m.-9:50 p.m.

Nonstop4h 58m

Seattle/Tacoma Intl

Sat 2/5

10:15 a.m.-11:12 p.m.

1 stop9h 57m

C$ 283

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 7/4

12:20 p.m.-2:20 p.m.

Nonstop5h 00m

Seattle/Tacoma Intl

Sun 12/4

11:59 p.m.-11:43 a.m.

1 stop8h 44m

C$ 283

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 22/4

4:16 p.m.-11:51 p.m.

1 stop10h 35m

Seattle/Tacoma Intl

Sat 25/4

6:00 a.m.-1:13 p.m.

Nonstop4h 13m

C$ 283

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 16/5

8:35 p.m.-10:28 p.m.

Nonstop4h 53m

Seattle/Tacoma Intl

Wed 20/5

11:59 p.m.-8:54 a.m.

1 stop5h 55m

C$ 283

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sun 19/4

7:52 p.m.-9:50 p.m.

Nonstop4h 58m

Seattle/Tacoma Intl

Tue 28/4

7:15 a.m.-8:44 p.m.

1 stop10h 29m

C$ 283

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 8/4

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

Nonstop5h 00m

Seattle/Tacoma Intl

Sun 12/4

11:59 p.m.-8:43 a.m.

1 stop5h 44m

C$ 283

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Thu 7/5

4:10 p.m.-11:55 p.m.

1 stop10h 45m

Seattle/Tacoma Intl

Mon 11/5

11:05 p.m.-6:30 a.m.

Nonstop4h 25m

C$ 283

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 13/5

4:10 p.m.-11:55 p.m.

1 stop10h 45m

Seattle/Tacoma Intl

Wed 20/5

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

Nonstop4h 22m

C$ 283

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 6/5

7:52 p.m.-9:49 p.m.

Nonstop4h 57m

Seattle/Tacoma Intl

Wed 13/5

10:35 p.m.-9:22 a.m.

1 stop7h 47m

C$ 283

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sun 10/5

8:35 p.m.-10:28 p.m.

Nonstop4h 53m

Seattle/Tacoma Intl

Sat 16/5

7:15 a.m.-8:33 p.m.

1 stop10h 18m

C$ 283

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

Showing 1-10 of 24 results
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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
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 20 February 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, April is the cheapest month in which you can book a flight from Detroit to Seattle (average of C$ 234). Flying from Detroit to Seattle in August is currently the most expensive (average of C$ 365). 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 21 February 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 21 February 2026.

The most flights from DTT to SEA are scheduled on a Wednesday (14 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?

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 21 February 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
11,910 reviews
Check prices

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

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
11,910 reviews
Alaska Airlines
8.0
Very good
11,910 reviews
Check prices

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

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
8,225 reviews
Alaska Airlines
8.0
Very good
11,910 reviews
Check prices

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

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
2,835 reviews
Alaska Airlines
8.0
Very good
11,910 reviews
Check prices

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

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
3,045 reviews
Alaska Airlines
8.0
Very good
11,910 reviews
Check prices

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

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 4 airlines.

  • How long is the flight from Detroit to Seattle?

    A quick flight from Detroit to Seattle can take about 4h 58m. Delta provides one of the quickest options available for as low as C$ 283. 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$ 175, was found to be the cheapest airline from Detroit to Seattle.Alternate airlines to your destination round-trip include Spirit Airlines and Hawaiian 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 American Airlines (72%), Alaska Airlines (72%) or Hawaiian Airlines (72%) 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$ 156. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for C$ 297 on average, our data indicates C$ 349 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, April is the cheapest month in which you can book a flight from Detroit to Seattle (average of C$ 234). Flying from Detroit to Seattle in August is currently the most expensive (average of C$ 365). 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 4 airlines flying from Detroit to Seattle

Discover the top 4 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 21 February 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 175AverageC$ 434FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Spirit AirlinesCheapestC$ 252AverageC$ 284FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
Hawaiian AirlinesCheapestC$ 262AverageC$ 529FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Alaska AirlinesCheapestC$ 262AverageC$ 537FlexibilityNo 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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