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$162+ 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 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SEA
nov. 5 — nov. 121
mer. 11/5
mer. 11/12
1 adult, Economy
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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 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 octobre 6, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(Southwest)

One-way from

$162
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$328

Good round-trip deal

$342 or less

Good one-way deal

$259 or less
Provider with most accurate pricing for Detroit (DTT)-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Detroit (DTT)-Seattle/Tacoma Intl flights.
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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. 10% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octobre 6, 2025.

This Southwest deal was found by Cheapflights users on 10/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/812:55 pmDTW - SEA
2 stops13h 00mSouthwest
jeu. 12/119:35 amSEA - DTW
1 stop9h 10mSouthwest
Deal found 10/4$269
This Kiwi.com deal was found by Cheapflights users on 10/4. 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.
mer. 10/226:00 amDTW - SEA
1 stop9h 07mFrontier
ven. 10/248:43 pmSEA - DTW
1 stop25h 16mFrontier
Deal found 10/4$270
This KAYAK deal was found by Cheapflights users on 10/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/267:13 amDTW - SEA
Nonstop5h 07mAlaska Airlines
dim. 11/3010:05 pmSEA - DTW
Nonstop4h 16mAlaska Airlines
Deal found 10/5$272
This Trip.com deal was found by Cheapflights users on 10/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/54:51 pmDTW - SEA
Nonstop5h 03mMultiple Airlines
jeu. 11/68:22 pmSEA - DTW
1 stop12h 36mMultiple Airlines
Deal found 10/4$273
This Kiwi.com deal was found by Cheapflights users on 10/4. 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.
ven. 12/59:45 amDTW - SEA
1 stop10h 06mMultiple Airlines
ven. 12/1210:05 pmSEA - DTW
1 stop18h 22mMultiple Airlines
Deal found 10/4$275
This Delta deal was found by Cheapflights users on 10/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 10/315:56 pmDTW - SEA
1 stop8h 58mDelta
ven. 11/71:30 pmSEA - DTW
1 stop7h 29mDelta
Deal found 10/3$277
This Kiwi.com deal was found by Cheapflights users on 10/4. 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.
mer. 12/108:22 pmDTW - SEA
1 stop20h 19mMultiple Airlines
lun. 12/1511:41 amSEA - DTW
2 stops19h 59mMultiple Airlines
Deal found 10/4$278
This FlightHub deal was found by Cheapflights users on 10/5. 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.
ven. 11/75:14 pmDTW - SEA
1 stop21h 59mMultiple Airlines
lun. 11/108:40 amSEA - DTW
Nonstop4h 15mMultiple Airlines
Deal found 10/5$279
This Kiwi.com deal was found by Cheapflights users on 10/5. 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.
mar. 10/287:03 pmDTW - SEA
2 stops20h 10mFrontier
sam. 11/88:22 pmSEA - DTW
1 stop12h 36mFrontier
Deal found 10/5$280
This Kiwi.com deal was found by Cheapflights users on 10/5. 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.
jeu. 10/231:24 pmDTW - SEA
2 stops21h 09mMultiple Airlines
lun. 10/276:39 pmSEA - DTW
1 stop26h 10mMultiple Airlines
Deal found 10/5$281
This Alaska Airlines deal was found by Cheapflights users on 10/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/257:13 amDTW - SEA
Nonstop5h 07mAlaska Airlines
mar. 11/2510:05 pmSEA - DTW
Nonstop4h 16mAlaska Airlines
Deal found 10/4$287

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 octobre 6, 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

ven. 12/5

8:40 am-2:44 pm

1 stop9h 04m

Seattle/Tacoma Intl

jeu. 12/18

1:45 pm-12:20 am

1 stop7h 35m

$269

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

ven. 12/12

10:57 am-7:09 pm

1 stop11h 12m

Seattle/Tacoma Intl

dim. 12/14

12:31 am-10:50 am

1 stop7h 19m

$269

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

sam. 12/6

6:35 am-4:50 pm

2 stops13h 15m

Seattle/Tacoma Intl

dim. 12/14

8:35 am-11:00 pm

1 stop11h 25m

$269

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

jeu. 12/11

7:00 am-10:54 am

1 stop6h 54m

Seattle/Tacoma Intl

lun. 12/29

5:59 pm-6:25 am

1 stop9h 26m

$269

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

dim. 12/7

12:25 pm-8:00 pm

1 stop10h 35m

Seattle/Tacoma Intl

mer. 12/10

9:35 am-10:40 pm

2 stops10h 05m

$269

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

ven. 12/12

8:09 pm-12:20 am

1 stop7h 11m

Seattle/Tacoma Intl

lun. 12/29

5:59 pm-6:25 am

1 stop9h 26m

$269

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

mer. 12/17

5:41 pm-7:51 pm

Nonstop5h 10m

Seattle/Tacoma Intl

sam. 12/27

10:01 pm-5:20 am

Nonstop4h 19m

$292

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

ven. 11/7

2:45 pm-12:35 am

1 stop12h 50m

Seattle/Tacoma Intl

mar. 11/11

5:15 am-5:50 pm

2 stops9h 35m

$294

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

mar. 12/9

8:00 am-6:40 pm

1 stop13h 40m

Seattle/Tacoma Intl

lun. 12/15

5:15 am-5:50 pm

2 stops9h 35m

$294

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

dim. 11/2

8:25 am-10:33 am

Nonstop5h 08m

Seattle/Tacoma Intl

dim. 11/9

6:00 am-1:19 pm

Nonstop4h 19m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/5

Showing 1-10 of 21 results
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Compare providers for flights from Detroit to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to Seattle in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Detroit-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Detroit-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 October 3, 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 74 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 $150). Flying from Detroit to Seattle in August is currently the most expensive (average of $263). 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 octobre 6, 2025.

It’s optimal to fly from Detroit to Seattle at noon. By choosing this option you can save up to 44% 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 September 28, 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 at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 octobre 6, 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
11,027 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Boarding

8.1

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
11,027 reviews
Alaska Airlines
8.0
Very good
11,027 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Boarding

8.1

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
7,967 reviews
Alaska Airlines
8.0
Very good
11,027 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Boarding

8.1

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
2,772 reviews
Alaska Airlines
8.0
Very good
11,027 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Boarding

8.1

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
11,040 reviews
Alaska Airlines
8.0
Very good
11,027 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Boarding

8.1

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
3,146 reviews
Alaska Airlines
8.0
Very good
11,027 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Boarding

8.1

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 3 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 56m 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 9h 04m. 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 $127, 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 64% 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 (92%), Korean Air (92%) or Delta (89%) 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 $168. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for $174 on average, our data indicates $758 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 $150). Flying from Detroit to Seattle in August is currently the most expensive (average of $263). 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
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Lacey
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

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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 octobre 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$127Average$244FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$130Average$272FlexibilityNo cancel feeOn-time65%
Sun Country AirCheapest$133Average$322FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$158Average$429FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$178Average$367FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$222Average$386FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$255Average$401FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$256Average$391FlexibilityNo cancel feeOn-time69%
DeltaCheapest$257Average$411FlexibilityNo cancel feeOn-timeN/A

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