HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Detroit

$156+ Cheap flights from Seattle to Detroit (SEA - DTT)

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DTT
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Detroit with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Detroit All airports are usually found in January or March, booked 76 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from Seattle to Detroit

Cheapest flights from Seattle to Detroit
Explore the most affordable flight options available from Seattle to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/202:37 pm
SEA
-
DTW
2 stops13h 53m
Frontier
Tue 8/257:55 am
DTW
-
SEA
1 stop8h 27m
Frontier
Deal found 7/27$339
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Wed 8/128:13 pm
SEA
-
DTW
1 stop7h 47m
Frontier
Thu 8/2012:20 pm
DTW
-
SEA
1 stop23h 59m
Frontier
Deal found 7/29$340
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sat 8/222:37 pm
SEA
-
DTW
2 stops13h 53m
Frontier
Wed 9/27:55 am
DTW
-
SEA
1 stop8h 27m
Frontier
Deal found 7/27$341
This Frontier deal was found by Cheapflights users on 8/1. 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.
Thu 8/207:06 pm
SEA
-
DTW
1 stop13h 19m
Frontier
Sat 8/227:55 am
DTW
-
SEA
1 stop8h 27m
Frontier
Deal found 8/1$342
This CheapOair deal was found by Cheapflights users on 7/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:06 pm
SEA
-
DTW
1 stop14h 28m
Frontier
Sat 8/227:55 am
DTW
-
SEA
1 stop28h 24m
Frontier
Deal found 7/30$343
This Kiwi.com deal was found by Cheapflights users on 8/1. 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.
Mon 8/249:29 pm
SEA
-
DTW
2 stops17h 46m
Frontier
Fri 8/287:55 am
DTW
-
SEA
1 stop7h 25m
Frontier
Deal found 8/1$344
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Tue 8/118:13 pm
SEA
-
DTW
1 stop7h 47m
Frontier
Mon 8/1712:50 pm
DTW
-
SEA
2 stops48h 49m
Frontier
Deal found 7/27$345
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/147:06 pm
SEA
-
DTW
1 stop14h 28m
Frontier
Tue 9/19:00 am
DTW
-
SEA
2 stops28h 39m
Frontier
Deal found 7/28$346
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 8/211:35 pm
SEA
-
DTW
1 stop8h 38m
Frontier
Sat 8/228:30 am
DTW
-
SEA
2 stops14h 08m
Frontier
Deal found 8/1$347
This Frontier deal was found by Cheapflights users on 7/29. 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.
Wed 8/128:13 pm
SEA
-
DTW
1 stop7h 47m
Frontier
Fri 8/217:55 am
DTW
-
SEA
1 stop7h 25m
Frontier
Deal found 7/29$348
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/258:15 pm
SEA
-
DTW
2 stops12h 36m
Frontier
Mon 9/287:08 am
DTW
-
SEA
1 stop11h 00m
Frontier
Deal found 7/30$349
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Tue 8/118:13 pm
SEA
-
DTW
1 stop7h 47m
Frontier
Wed 8/1912:20 pm
DTW
-
SEA
1 stop23h 59m
Frontier
Deal found 7/27$350

Find flight deals from Seattle to Detroit

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Detroit (DTT). 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 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$339
(Kiwi.com)

One-way from

$156
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$477

Good round-trip deal

$417 or less

Good one-way deal

$289 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Detroit (DTT) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Detroit (DTT) flights.
Search Deals
From Seattle/Tacoma Intl to Detroit (DTT)
Search Deals
One-way flight from Seattle/Tacoma Intl to Detroit (DTT)
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($86 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Detroit (DTT).
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Detroit (DTT).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Detroit 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 1, 2026.
Use the filters below to find and compare flights from Seattle to Detroit that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Wed 9/30

7:00 am-6:11 pm

1 stop8h 11m

Detroit Metropolitan Wayne County

Sat 10/3

3:01 pm-10:36 pm

1 stop10h 35m

$403

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Mon 8/24

7:35 pm-11:27 am

2 stops12h 52m

Detroit Metropolitan Wayne County

Wed 8/26

7:30 am-11:32 am

1 stop7h 02m

$419

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Wed 8/19

9:59 pm-5:22 am

Nonstop4h 23m

Detroit Metropolitan Wayne County

Tue 9/1

5:41 pm-7:36 pm

Nonstop4h 55m

$432

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Tue 10/27

11:50 pm-8:48 am

1 stop5h 58m

Detroit Metropolitan Wayne County

Tue 11/3

8:25 am-10:40 am

Nonstop5h 15m

$437

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Wed 8/19

9:45 pm-8:55 am

1 stop8h 10m

Detroit Metropolitan Wayne County

Tue 9/1

8:30 am-10:31 am

Nonstop5h 01m

$437

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Mon 8/31

7:35 pm-9:38 am

2 stops11h 03m

Detroit Metropolitan Wayne County

Wed 9/2

5:25 am-11:44 am

2 stops9h 19m

$444

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Thu 10/1

11:10 am-11:35 pm

2 stops9h 25m

Detroit Metropolitan Wayne County

Tue 10/6

3:50 pm-11:55 pm

2 stops11h 05m

$447
Quickest round-trip

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Thu 9/24

9:59 pm-5:22 am

Nonstop4h 23m

Detroit Metropolitan Wayne County

Sun 9/27

7:01 am-8:54 am

Nonstop4h 53m

$447

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Thu 10/1

9:59 pm-5:22 am

Nonstop4h 23m

Detroit Metropolitan Wayne County

Mon 10/5

5:59 pm-7:57 pm

Nonstop4h 58m

$447

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Fri 9/25

11:05 pm-6:28 am

Nonstop4h 23m

Detroit Metropolitan Wayne County

Mon 9/28

8:10 pm-10:05 pm

Nonstop4h 55m

$447

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Seattle to Detroit

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 Seattle to Detroit in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 Seattle-Detroit flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Detroit flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Detroit flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Detroit 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 Seattle-Detroit 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 Seattle to Detroit

Have a flexible travel schedule? Discover the best time to fly to Detroit from Seattle 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 Seattle to Detroit

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Detroit (average of $246). Flying from Seattle to Detroit in June is currently the most expensive (average of $544). 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 SEA to DTT?

Find hourly flight availability from Seattle to Detroit. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 1, 2026.

It’s typically best to fly out from Seattle to Detroit in the afternoon. Doing so could potentially save you 15% on the flight price compared to flying at noon, which is usually more expensive.

Weekly flight availability from Seattle to Detroit

Explore weekly flight availability from Seattle to Detroit. 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 1, 2026.

The most flights from SEA to DTT are scheduled on a Friday (20 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

How much does it cost to fly round-trip from Seattle to Detroit?

Airfare is below average for this route at the moment.
Seattle to Detroit flights typically cost between $387 and $597 in August.
The cheapest round-trip price found within the last 5 days was $339 on Frontier (Aug 20-Aug 25).

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

To ensure you get the cheapest price possible for a flight from Seattle to Detroit, you should look to book at least 63 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 day to fly from Seattle to Detroit?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Detroit. Price data was last updated on July 25, 2026.

Travelers seeking maximum savings on their Seattle to Detroit flight should consider departing on Wednesday afternoons 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.

Reviews of airlines servicing Detroit

Get insights into the airlines that provide service to Detroit. 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 Detroit. Reviews last updated August 1, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Seattle to Detroit have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,744 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
Alaska Airlines
7.9
Good
12,744 reviews
Alaska Airlines
7.9
Good
12,744 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
Delta
7.8
Good
8,493 reviews
Alaska Airlines
7.9
Good
12,744 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
United Airlines
7.4
Good
10,061 reviews
Alaska Airlines
7.9
Good
12,744 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
Frontier
5.6
Fair
2,740 reviews
Alaska Airlines
7.9
Good
12,744 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Detroit. 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 Seattle to Detroit?

    Detroit All airports is the airport most travelers will use when flying to Detroit from Seattle/Tacoma Intl. Booking flights from Seattle/Tacoma Intl (SEA) to All airports (DTT) should be relatively easy as there are 8 daily flights to Detroit from 5 different airlines. 4h 12m is how long a flight from Seattle to Detroit All airports will take if you book a nonstop flight.

  • How long is the flight from Seattle to Detroit?

    United Airlines, Alaska Airlines, and Delta can get you from Seattle to Detroit in just under 4h 23m. Your travel time can differ by up to 3h 48m. Seattle and Detroit are separated by a distance of 1920 mi. This flight may include one or multiple stops.

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

    Flying on Frontier is currently your cheapest option to Detroit, with prices starting at $152. Additional round-trip tickets that might be worth considering are offered by United Airlines and Alaska Airlines, with the lowest prices starting at $163 and $199, respectively. Frontier is currently priced 63% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Seattle to Detroit one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $122. United Airlines flights start at $128 while deals on Southwest start at $146 one-way.

  • What are the most reliable airlines from Seattle to Detroit?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Detroit on time: Japan Airlines (88%), Air France (88%), Virgin Atlantic (88%).

  • What are the cheapest flights from Seattle to Detroit?

    Looking at all options, your cheapest flight can be booked for $174. While the most popular route (Seattle/Tacoma Intl - Detroit Metropolitan Wayne County) can be booked for $303 on average, our data indicates $803 when flying from Seattle to Detroit.

  • Can I find deals for flights from Seattle to Detroit that include hotel bookings?

    Yes. In addition to deals on Seattle to Detroit flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Detroit?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Detroit.

  • Can I find deals for business class flights from Seattle to Detroit?

    Yes. Cheapflights offers flight deals from Seattle to Detroit 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 Seattle to Detroit?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Detroit (average of $246). Flying from Seattle to Detroit in June is currently the most expensive (average of $544). 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 Detroit?

Book flights to Detroit if you plan to visit one of these locations
Roseville
Port Huron

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from Seattle to Detroit

Discover the top 5 airlines that operate flights from Seattle to Detroit. 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 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$152Average$301FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$163Average$376FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$199Average$440FlexibilityNo cancel feeOn-time75%
DeltaCheapest$215Average$449FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$272Average$427FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.