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$139+ Cheap flights from Detroit to Seattle (DTT - SEA)

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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SEA
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheapflights Tip: The best prices from Detroit All airports to Seattle/Tacoma Intl are usually found in October or January, booked 15 days in advance, depart on a Friday or Wednesday and return on a Thursday

Cheap 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 August 21, 2025.

Round-trip from

$266
(Kiwi.com)

One-way from

$139
(Priceline)

Popular in

June

Cheapest in

October

Average price

$392

Good round-trip deal

$337 or less

Good one-way deal

$281 or less
From Detroit (DTT) to Seattle/Tacoma Intl
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One-way flight from Detroit (DTT) to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 11% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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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Find flight deals from Detroit to Seattle

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 August 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/286:30 amDTW - SEA
Nonstop4h 56mMultiple Airlines
Tue 10/71:02 pmSEA - DTW
1 stop8h 57mMultiple Airlines
Deal found 8/18$266
This Kiwi.com deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/56:10 amDTW - SEA
1 stop21h 20mFrontier
Sun 10/128:43 pmSEA - DTW
1 stop25h 16mFrontier
Deal found 8/21$267
This Frontier deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/307:40 amDTW - SEA
1 stop7h 05mFrontier
Tue 9/26:41 amSEA - DTW
1 stop12h 02mFrontier
Deal found 8/19$268
This American Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/179:36 amDTW - SEA
1 stop13h 33mAmerican Airlines
Wed 9/2410:11 amSEA - DTW
1 stop10h 10mAmerican Airlines
Deal found 8/18$269
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/711:00 amDTW - SEA
1 stop9h 33mMultiple Airlines
Thu 9/114:36 pmSEA - DTW
1 stop9h 50mMultiple Airlines
Deal found 8/19$270
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/23:00 pmDTW - SEA
2 stops12h 30mMultiple Airlines
Sat 10/49:39 pmSEA - DTW
1 stop12h 47mMultiple Airlines
Deal found 8/19$271
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:30 amDTW - SEA
Nonstop4h 56mMultiple Airlines
Mon 9/226:12 amSEA - DTW
1 stop15h 34mMultiple Airlines
Deal found 8/19$272
This Kiwi.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/56:10 amDTW - SEA
1 stop21h 20mFrontier
Mon 10/138:43 pmSEA - DTW
1 stop25h 16mFrontier
Deal found 8/20$273
This FlightHub deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/38:00 amDTW - SEA
1 stop18h 01mFrontier
Sun 9/76:12 amSEA - DTW
1 stop15h 34mFrontier
Deal found 8/19$274
This FlightHub deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/278:00 amDTW - SEA
1 stop28h 34mFrontier
Tue 9/26:41 amSEA - DTW
1 stop12h 02mFrontier
Deal found 8/19$275
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/39:12 amDTW - SEA
1 stop9h 33mMultiple Airlines
Tue 10/71:02 pmSEA - DTW
1 stop8h 57mMultiple Airlines
Deal found 8/18$276
This FlightHub deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/68:00 amDTW - SEA
1 stop15h 39mFrontier
Mon 9/86:12 amSEA - DTW
1 stop15h 34mFrontier
Deal found 8/21$277

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 2,558,603 searches. Data last updated August 21, 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

Thu 9/18

11:54 am-12:30 am

1 stop15h 36m

Seattle/Tacoma Intl

Sat 9/20

7:00 am-11:58 pm

1 stop13h 58m

$275

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sun 9/28

8:26 pm-5:01 pm

1 stop23h 35m

Seattle/Tacoma Intl

Wed 10/8

6:06 pm-11:15 am

1 stop14h 09m

$285

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Thu 10/2

7:10 pm-4:49 pm

1 stop24h 39m

Seattle/Tacoma Intl

Wed 10/8

6:06 pm-11:15 am

1 stop14h 09m

$290

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Thu 10/2

7:10 pm-4:49 pm

1 stop24h 39m

Seattle/Tacoma Intl

Thu 10/9

6:04 pm-11:39 am

1 stop14h 35m

$290

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 10/6

12:16 pm-10:10 pm

1 stop12h 54m

Seattle/Tacoma Intl

Mon 10/13

11:40 pm-11:30 am

1 stop8h 50m

$293

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 10/6

12:16 pm-10:10 pm

1 stop12h 54m

Seattle/Tacoma Intl

Sun 10/12

11:40 pm-11:30 am

1 stop8h 50m

$293

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 10/1

12:16 pm-10:20 pm

1 stop13h 04m

Seattle/Tacoma Intl

Fri 10/3

11:59 pm-11:31 am

1 stop8h 32m

$293

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 10/1

12:16 pm-10:20 pm

1 stop13h 04m

Seattle/Tacoma Intl

Sat 10/4

11:40 pm-11:30 am

1 stop8h 50m

$293

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 10/1

12:16 pm-10:20 pm

1 stop13h 04m

Seattle/Tacoma Intl

Mon 10/6

11:40 pm-11:30 am

1 stop8h 50m

$293

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 10/4

8:20 pm-10:16 pm

Nonstop4h 56m

Seattle/Tacoma Intl

Sat 10/11

6:00 am-1:20 pm

Nonstop4h 20m

$296

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 20 results
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 August 8, 2025.

The price you pay for your flight from Detroit to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 15 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $238). Flying from Detroit to Seattle in June is currently the most expensive (average of $388). 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 August 21, 2025.

It’s optimal to fly from Detroit to Seattle in the afternoon. By choosing this option you can save up to 35% on the cost of your flight, compared to 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 August 17, 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. Sunday mornings 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 August 21, 2025.

The most flights from DTT to SEA are scheduled on a Thursday (20 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 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 1-stop round-trip flights from Detroit to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.

Las Vegas (LAS) – chosen by Cheapflights users on 50% of 1-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 $180.

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 Las Vegas (LAS) have the shortest average one-way travel time for 1-stop routes: 10h 53m.

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 2h 46m.

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 August 21, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian Airlines from Detroit to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,672 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Frontier
5.8
Fair
3,207 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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 wish to fly to Seattle from Detroit, then you need to book flights from Detroit All airports to Seattle/Tacoma Intl. There are 14 flights from All airports (DTT) to Seattle/Tacoma Intl (SEA) per day to choose from. Flights to Seattle from All airports are available from 9 different airlines, which means you should have some options if you want to compare airfare deals. 4h 49m is how long a nonstop flight from Detroit to Seattle/Tacoma Intl typically takes.

  • How long is the flight from Detroit to Seattle?

    Departing from Detroit to Seattle will take you 12h 54m. There are 1920 mi between Detroit and Seattle. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Frontier, at $128, was found to be the cheapest airline from Detroit to Seattle.Alternate airlines to your destination round-trip include Spirit Airlines and Sun Country Air. 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 Korean Air (93%), Aeromexico (85%) or LATAM Airlines (85%) 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 $158. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for $225 on average our data indicates $998 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 $238). Flying from Detroit to Seattle in June is currently the most expensive (average of $388). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Lacey
Ocean Shores
Lynnwood
Leavenworth
Renton
Olympia
Kent
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

Browse thousands of different options on Cheapflights for your next trip

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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.
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Top 9 airlines flying from Detroit to Seattle

Discover the top 9 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 2,558,603 searches. Data last updated August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$229FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$130Average$275FlexibilityNo cancel feeOn-time65%
Sun Country AirCheapest$133Average$325FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$158Average$434FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$178Average$367FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$222Average$386FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$256Average$401FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$256Average$395FlexibilityNo cancel feeOn-time69%
DeltaCheapest$257Average$407FlexibilityNo cancel feeOn-timeN/A

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