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Cheap flights from Detroit to Seattle from C$ 134

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 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SEA
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Detroit All airports to Seattle/Tacoma Intl are usually found in February or March, booked 48 days in advance, depart on a Thursday or Saturday and return on a Wednesday

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 12 December 2025.

Wed 24/126:00 p.m.DTW - SEA
1 stop8h 27mDelta
Wed 31/123:55 p.m.SEA - DTW
Nonstop4h 21mDelta
Deal found 10/12C$ 437
Wed 24/128:13 p.m.DTW - SEA
Nonstop5h 12mDelta
Sun 11/16:05 a.m.SEA - DTW
Nonstop4h 16mDelta
Deal found 10/12C$ 452
Thu 25/126:40 a.m.DTW - SEA
Nonstop5h 09mAlaska Airlines
Mon 5/18:30 a.m.SEA - DTW
Nonstop4h 26mAlaska Airlines
Deal found 9/12C$ 508
Thu 18/128:25 a.m.DTW - SEA
Nonstop5h 15mDelta
Wed 7/16:05 a.m.SEA - DTW
Nonstop4h 16mDelta
Deal found 11/12C$ 548
Sat 20/126:10 p.m.DTW - SEA
1 stop10h 15mSouthwest
Sat 10/110:45 a.m.SEA - DTW
1 stop6h 00mSouthwest
Deal found 11/12C$ 549
Mon 22/126:35 a.m.DTW - SEA
1 stop11h 40mSouthwest
Mon 12/16:45 a.m.SEA - DTW
1 stop5h 45mSouthwest
Deal found 10/12C$ 556
Thu 18/128:25 a.m.DTW - SEA
Nonstop5h 15mDelta
Fri 9/11:30 p.m.SEA - DTW
Nonstop4h 15mDelta
Deal found 11/12C$ 561
Wed 24/127:00 a.m.DTW - SEA
1 stop9h 25mSouthwest
Sun 11/16:35 a.m.SEA - DTW
1 stop5h 55mSouthwest
Deal found 10/12C$ 568
Fri 19/127:15 a.m.DTW - SEA
1 stop7h 48mUnited Airlines
Sat 10/17:00 a.m.SEA - DTW
1 stop9h 36mUnited Airlines
Deal found 11/12C$ 575
Sat 20/126:40 a.m.DTW - SEA
Nonstop5h 09mAlaska Airlines
Wed 7/19:02 a.m.SEA - DTW
Nonstop4h 17mAlaska Airlines
Deal found 11/12C$ 576

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 12 December 2025.

Round-trip from

C$ 274

One-way from

C$ 134

Popular in

October

Cheapest in

February

Average price

C$ 499

Good round-trip deal

C$ 409 or less

Good one-way deal

C$ 346 or less
Delta
  • Delta
  • 22/1-29/1
  • 2 total stops
  • 20h 31m total
  • Detroit to Seattle
Search Deals
Frontier
  • Frontier
  • 25/1
  • 1 total stop
  • 21h 05m total
  • Detroit to Seattle
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 36 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 December 2025
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 12 December 2025.
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 9/1

8:00 a.m.-12:33 p.m.

1 stop7h 33m

Seattle/Tacoma Intl

Sun 11/1

5:40 p.m.-5:40 a.m.

1 stop9h 00m

C$ 274

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 4/3

12:30 p.m.-8:30 p.m.

1 stop11h 00m

Seattle/Tacoma Intl

Wed 11/3

9:40 a.m.-10:54 p.m.

1 stop10h 14m

C$ 274

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Thu 22/1

12:30 p.m.-6:43 p.m.

1 stop9h 13m

Seattle/Tacoma Intl

Thu 29/1

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

1 stop9h 00m

C$ 274

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Thu 22/1

12:30 p.m.-6:43 p.m.

1 stop9h 13m

Seattle/Tacoma Intl

Mon 26/1

10:59 p.m.-9:30 a.m.

1 stop7h 31m

C$ 274

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sun 8/2

7:45 p.m.-9:49 p.m.

Nonstop5h 04m

Seattle/Tacoma Intl

Wed 11/2

6:05 a.m.-1:21 p.m.

Nonstop4h 16m

C$ 302

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sun 25/1

7:45 p.m.-9:49 p.m.

Nonstop5h 04m

Seattle/Tacoma Intl

Wed 28/1

6:05 a.m.-1:21 p.m.

Nonstop4h 16m

C$ 302

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sun 8/2

7:15 a.m.-11:32 a.m.

1 stop7h 17m

Seattle/Tacoma Intl

Wed 11/2

8:40 a.m.-10:10 p.m.

2 stops10h 30m

C$ 336

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sun 25/1

6:35 a.m.-10:50 a.m.

1 stop7h 15m

Seattle/Tacoma Intl

Wed 28/1

9:55 a.m.-10:30 p.m.

2 stops9h 35m

C$ 364

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 28/2

6:45 p.m.-11:55 p.m.

1 stop8h 10m

Seattle/Tacoma Intl

Tue 3/3

8:45 a.m.-9:25 p.m.

2 stops9h 40m

C$ 370

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 16/1

7:15 a.m.-11:32 a.m.

1 stop7h 17m

Seattle/Tacoma Intl

Sun 18/1

5:00 a.m.-6:59 p.m.

2 stops10h 59m

C$ 378

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 21 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 5 December 2025.

To ensure you get the cheapest price possible for a flight from Detroit to Seattle, you should look to book at least 48 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$ 226). Flying from Detroit to Seattle in August is currently the most expensive (average of C$ 364). 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 12 December 2025.

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 at noon, which can drop the price by up to 62% versus a flight in the morning.

What is the cheapest day to fly from Detroit to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Detroit to Seattle. Price data was last updated on 6 December 2025.

Travelers seeking maximum savings on their Detroit to Seattle flight should consider departing on Tuesday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 12 December 2025.

The most flights from DTT to SEA are scheduled on a Thursday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 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.

Los Angeles (LAX) – chosen by Cheapflights users on 33% 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.

Los Angeles (LAX) is the most affordable 1-stop option, with an average round-trip price of C$ 281.

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 Las Vegas (LAS) offer the fastest connection on this route, with an average layover time of 1h 27m.

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 12 December 2025.
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
11,431 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

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
11,431 reviews
Alaska Airlines
8.0
Very good
11,431 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

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
8,005 reviews
Alaska Airlines
8.0
Very good
11,431 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

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
2,817 reviews
Alaska Airlines
8.0
Very good
11,431 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

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
5.8
Fair
3,084 reviews
Alaska Airlines
8.0
Very good
11,431 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

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 5h 07m for a nonstop flight. There are 11 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 7h 33m. Delta provides one of the quickest options available for as low as C$ 274. Detroit and Seattle are separated by a distance of 3090 km.

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

    Delta, at C$ 176, 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 65% 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 Air France (91%), Korean Air (87%) or Air Tahiti Nui (84%) 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$ 196. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for C$ 451 on average, our data indicates C$ 436 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$ 226). Flying from Detroit to Seattle in August is currently the most expensive (average of C$ 364). 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
Leavenworth
SeaTac
Tukwila
Mukilteo
Tacoma
Bothell
Cashmere
Olympia
Renton
Marysville
Lynnwood

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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
Detroit to Portland flights
O'Hare Intl to Seattle 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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 177AverageC$ 475FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Spirit AirlinesCheapestC$ 254AverageC$ 286FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
Hawaiian AirlinesCheapestC$ 264AverageC$ 533FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Alaska AirlinesCheapestC$ 381AverageC$ 541FlexibilityNo 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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