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$146+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DTT
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Detroit All airports are usually found in January or April, booked 80 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap 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 July 3, 2025.

Round-trip from

$316
(Frontier)

One-way from

$146
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$485

Good round-trip deal

$446 or less

Good one-way deal

$240 or less
From Seattle/Tacoma Intl to Detroit (DTT)
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One-way flight from Seattle/Tacoma Intl to Detroit (DTT)
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Highest demand for flights based on searches. 11% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Detroit (DTT).
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Detroit (DTT).
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Find 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 July 3, 2025.

This Frontier deal was found by Cheapflights users on 7/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:12 amSEA - DTW
2 stops11h 17mFrontier
Mon 10/63:42 pmDTW - SEA
2 stops11h 49mFrontier
Deal found 7/3$315
This Delta deal was found by Cheapflights users on 7/3. 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.
Wed 8/2011:55 pmSEA - DTW
1 stop5h 45mDelta
Tue 9/912:16 pmDTW - SEA
1 stop10h 52mDelta
Deal found 7/3$317
This Mytrip deal was found by Cheapflights users on 7/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/165:30 pmSEA - DTW
1 stop10h 34mSpirit Airlines
Wed 7/235:30 amDTW - SEA
3 stops37h 55mSpirit Airlines
Deal found 7/1$318
This Cheapflightsfares deal was found by Cheapflights users on 7/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:35 pmSEA - DTW
1 stop13h 34mSun Country Air
Sun 10/192:18 pmDTW - SEA
1 stop11h 25mSun Country Air
Deal found 7/2$319
This Booking.com deal was found by Cheapflights users on 7/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/155:30 pmSEA - DTW
2 stops16h 23mMultiple Airlines
Fri 7/1811:15 amDTW - SEA
1 stop14h 32mMultiple Airlines
Deal found 7/1$320
This Southwest deal was found by Cheapflights users on 7/2. 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.
Thu 9/2511:10 amSEA - DTW
2 stops8h 40mSouthwest
Mon 9/291:45 pmDTW - SEA
1 stop9h 10mSouthwest
Deal found 7/2$322
This United Airlines deal was found by Cheapflights users on 7/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3112:20 amSEA - DTW
1 stop6h 31mUnited Airlines
Tue 8/52:10 pmDTW - SEA
1 stop7h 48mUnited Airlines
Deal found 7/2$358

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 July 3, 2025.
Use the filters below to find and compare flights from Seattle to Detroit that are best for you.

Fly from

Seattle

Fly to

Detroit

Route

Depart

Return

Price

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Fri 10/3

6:12 am-8:29 pm

2 stops11h 17m

Detroit Metropolitan Wayne County

Mon 10/6

3:42 pm-12:31 am

2 stops11h 49m

$315

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Wed 8/20

7:23 am-6:31 pm

1 stop8h 08m

Detroit Metropolitan Wayne County

Sat 9/6

8:26 am-4:51 pm

1 stop11h 25m

$317

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Wed 7/16

5:30 pm-7:04 am

1 stop10h 34m

Detroit Metropolitan Wayne County

Wed 7/23

5:30 am-4:25 pm

3 stops37h 55m

$318

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Thu 10/16

6:35 pm-11:09 am

1 stop13h 34m

Detroit Metropolitan Wayne County

Sun 10/19

2:18 pm-10:43 pm

1 stop11h 25m

$319

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Tue 7/15

5:30 pm-12:53 pm

2 stops16h 23m

Detroit Metropolitan Wayne County

Fri 7/18

11:15 am-10:47 pm

1 stop14h 32m

$320

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Thu 9/25

11:10 am-10:50 pm

2 stops8h 40m

Detroit Metropolitan Wayne County

Mon 9/29

1:45 pm-7:55 pm

1 stop9h 10m

$322

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Thu 7/31

12:20 am-9:51 am

1 stop6h 31m

Detroit Metropolitan Wayne County

Tue 8/5

2:10 pm-6:58 pm

1 stop7h 48m

$358

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Mon 7/14

5:30 pm-7:04 am

1 stop10h 34m

$146

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Wed 8/13

6:25 am-4:20 pm

1 stop6h 55m

$147

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Thu 7/17

6:21 pm-10:13 am

1 stop12h 52m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 16 results
1
2

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Detroit. Price data was last updated on June 27, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Detroit, you should look to book at least 80 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 Seattle to Detroit?

Currently, April is the cheapest month in which you can book a flight from Seattle to Detroit (average of $257). Flying from Seattle to Detroit in March is currently the most expensive (average of $305). 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 July 3, 2025.

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 in the morning, which is usually more expensive.

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 June 29, 2025.

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

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 July 3, 2025.

The most flights from SEA to DTT are scheduled on a Monday (20 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

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 July 3, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta 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
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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 16 daily flights to Detroit from 6 different airlines. 4h 13m is how long a flight from Seattle to Detroit All airports will take if you book a nonstop flight.

  • 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 $316. Additional round-trip tickets that might be worth considering are offered by Delta and Southwest, with the lowest prices starting at $317 and $322, respectively. Frontier is currently priced 20% 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 Spirit Airlines, which is currently one of the cheapest options available, starting at $146. Frontier flights start at $147 while deals on Sun Country Air start at $153 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: Air Europa (97%), LATAM Airlines (97%), WestJet (97%).

  • What are the cheapest flights from Seattle to Detroit?

    Looking at all options, your cheapest flight can be booked for $148. While the most popular route (Seattle/Tacoma Intl - Detroit Metropolitan Wayne County) can be booked for $208 on average our data indicates $2,429 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, April is the cheapest month in which you can book a flight from Seattle to Detroit (average of $257). Flying from Seattle to Detroit in March is currently the most expensive (average of $305). 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
Roseville
Port Huron

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Alternative routes for Seattle to Detroit

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Seattle to Detroit

Discover the top 6 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$147Average$193FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$148Average$368FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$173Average$309FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$178Average$412FlexibilityNo cancel feeOn-time85%
DeltaCheapest$256Average$419FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$272Average$465FlexibilityNo cancel feeOn-time75%

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