What is the cheapest airline that flies from Seattle/Tacoma Intl to Detroit?

Frontier, United Airlines, and Alaska Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Detroit

How many flights depart from Seattle to Detroit on average per day?

The number of flights available between Seattle and Detroit is 14 per day as of September 2025. The most frequent departure time is 9:00PM, with 44% of daily flights leaving at noon.

Which layover airport has the shortest travel time from Seattle to Detroit?

Flights connecting via Minneapolis (MSP) have the shortest average one-way travel time: 6h 06m.

How many flights depart from Seattle to Detroit on average per week?

As of September 2025, there are 103 flights per week flying from Seattle to Detroit. The most common day of the week flights depart is Fri, with 20% of flights taking off on this day.

Which layover airport offers the lowest fares from Seattle to Detroit?

Flights via Chicago (ORD) offer the lowest average round-trip price of $312.

Which layover airport has the shortest connection time from Seattle to Detroit?

Chicago (ORD) has the shortest average layover time for this route: 0h 48m.

Which airport is the most popular layover for flights between Seattle and Detroit?

Chicago (ORD) was the most common stop: 56% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Detroit?

Delta, Alaska Airlines and Hawaiian Airlines are the top three most popular airlines that fly to Detroit from Seattle according to our data. Delta is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Detroit. Keep in mind that there are 7 different airlines that fly to Detroit on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Detroit?

Prices for flights from Seattle/Tacoma Intl Airport to Detroit are updated daily.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Detroit?

There are 7 operators available for flights from Seattle/Tacoma Intl Airport to Detroit as of September 2025.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Detroit?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Detroit.

What documentation or ID do you need to fly to Detroit?

The necessary travel and health documents for your Detroit trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$148 Cheap Flights from Seattle to Detroit in 2025/26

Q: What is the typical price of a round-trip flight between Seattle and Detroit?

Prices are currently low for flights on this route. Typical prices usually range from $337 to $593. The lowest price recently found on this route was $282.

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Find the cheapest flights from Seattle to Detroit

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

1:57 pm - 11:41 pmSEA-DTW

6h 44m1 stop

9:15 am - 3:32 pmDTW-SEA

9h 17m2 stops

$282United Airlines

Find Deal

Wed, Oct 15 - Tue, Oct 21

8:43 pm - 12:59 amSEA-DTW

25h 16m1 stop

6:00 am - 12:07 pmDTW-SEA

9h 07m1 stop

$284Frontier

Find Deal

Wed, Oct 8 - Mon, Oct 13

6:00 am - 1:20 pmSEA-DTW

4h 20mnonstop

5:59 pm - 10:22 pmDTW-SEA

7h 23m1 stop

$287Delta

Find Deal

Sat, Oct 11 - Sat, Oct 18

9:55 am - 9:25 pmSEA-DTW

8h 30m1 stop

6:50 am - 4:00 pmDTW-SEA

12h 10m2 stops

$292Southwest

Find Deal

Thu, Jan 8 - Tue, Jan 20

10:01 pm - 5:20 amSEA-DTW

4h 19mnonstop

4:40 pm - 6:44 pmDTW-SEA

5h 04mnonstop

$295Alaska Airlines

Find Deal

Tue, Jan 6 - Thu, Jan 22

11:44 am - 10:34 pmSEA-DTW

7h 50m1 stop

12:45 pm - 11:18 pmDTW-SEA

13h 33m1 stop

$296American Airlines

Find Deal

Tue, Oct 28 - Tue, Nov 11

6:00 am - 1:20 pmSEA-DTW

4h 20mnonstop

4:25 pm - 6:23 pmDTW-SEA

4h 58mnonstop

$297Delta

Find Deal

Thu, Oct 23 - Mon, Oct 27

5:50 am - 4:50 pmSEA-DTW

8h 00m1 stop

12:55 pm - 10:55 pmDTW-SEA

13h 00m2 stops

$308Southwest

Find Deal

Tue, Oct 28 - Tue, Nov 11

12:34 am - 10:07 amSEA-DTW

6h 33m1 stop

5:30 am - 1:46 pmDTW-SEA

11h 16m1 stop

$326American Airlines

Find Deal

Sat, Oct 11 - Tue, Oct 21

8:05 am - 3:22 pmSEA-DTW

4h 17mnonstop

4:40 pm - 6:44 pmDTW-SEA

5h 04mnonstop

$336Alaska Airlines

Find Deal

Sat, Jan 10 - Mon, Jan 19

Frontier flights from Seattle to Detroit

Our best Frontier deals on Seattle to Detroit flight tickets

Frontier

Oct 8

SEA8:43 pmSeattle/Tacoma Intl

25h 16m

1 stop

DTW12:59 amDetroit Metropolitan Wayne County

Oct 13

DTW6:00 amDetroit Metropolitan Wayne County

9h 07m

1 stop

SEA12:07 pmSeattle/Tacoma Intl

$284

Find similar

Frontier

Oct 17

SEA8:43 pmSeattle/Tacoma Intl

19h 50m

2 stops

DTW7:33 pmDetroit Metropolitan Wayne County

Oct 20

DTW6:00 amDetroit Metropolitan Wayne County

10h 26m

2 stops

SEA1:26 pmSeattle/Tacoma Intl

$285

Find similar

Frontier

Oct 8

SEA8:43 pmSeattle/Tacoma Intl

25h 16m

1 stop

DTW12:59 amDetroit Metropolitan Wayne County

Oct 15

DTW3:42 pmDetroit Metropolitan Wayne County

23h 25m

2 stops

SEA12:07 pmSeattle/Tacoma Intl

$289

Find similar

United Airlines flights from Seattle to Detroit

Our best United Airlines deals on Seattle to Detroit flight tickets

United Airlines

Oct 15

SEA1:57 pmSeattle/Tacoma Intl

6h 44m

1 stop

DTW11:41 pmDetroit Metropolitan Wayne County

Oct 21

DTW9:15 amDetroit Metropolitan Wayne County

9h 17m

2 stops

SEA3:32 pmSeattle/Tacoma Intl

$282

Find similar

United Airlines

Oct 23

SEA7:00 amSeattle/Tacoma Intl

6h 51m

1 stop

DTW4:51 pmDetroit Metropolitan Wayne County

Oct 25

DTW2:13 pmDetroit Metropolitan Wayne County

10h 11m

2 stops

SEA9:24 pmSeattle/Tacoma Intl

$302

Find similar

United Airlines

Oct 15

SEA1:57 pmSeattle/Tacoma Intl

6h 44m

1 stop

DTW11:41 pmDetroit Metropolitan Wayne County

Oct 21

DTW9:15 amDetroit Metropolitan Wayne County

9h 17m

2 stops

SEA3:32 pmSeattle/Tacoma Intl

$330

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Wed 10/15

1:57 pm-11:41 pm

1 stop6h 44m

Detroit Metropolitan Wayne County

Tue 10/21

9:15 am-3:32 pm

2 stops9h 17m

$282

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Wed 10/8

8:43 pm-12:59 am

1 stop25h 16m

Detroit Metropolitan Wayne County

Mon 10/13

6:00 am-12:07 pm

1 stop9h 07m

$284

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Sat 10/11

6:00 am-1:20 pm

Nonstop4h 20m

Detroit Metropolitan Wayne County

Sat 10/18

5:59 pm-10:22 pm

1 stop7h 23m

$287

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Thu 1/8

9:55 am-9:25 pm

1 stop8h 30m

Detroit Metropolitan Wayne County

Tue 1/20

6:50 am-4:00 pm

2 stops12h 10m

$292

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Tue 1/6

10:01 pm-5:20 am

Nonstop4h 19m

Detroit Metropolitan Wayne County

Thu 1/22

4:40 pm-6:44 pm

Nonstop5h 04m

$295

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Tue 10/28

11:44 am-10:34 pm

1 stop7h 50m

Detroit Metropolitan Wayne County

Tue 11/11

12:45 pm-11:18 pm

1 stop13h 33m

$296

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Thu 10/23

6:00 am-1:20 pm

Nonstop4h 20m

Detroit Metropolitan Wayne County

Mon 10/27

4:25 pm-6:23 pm

Nonstop4h 58m

$297

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Tue 10/28

5:50 am-4:50 pm

1 stop8h 00m

Detroit Metropolitan Wayne County

Tue 11/11

12:55 pm-10:55 pm

2 stops13h 00m

$308

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Sat 10/11

12:34 am-10:07 am

1 stop6h 33m

Detroit Metropolitan Wayne County

Tue 10/21

5:30 am-1:46 pm

1 stop11h 16m

$326

SeattleDetroit

SEA - DTW

SEADTW

Seattle/Tacoma Intl

Sat 1/10

8:05 am-3:22 pm

Nonstop4h 17m

Detroit Metropolitan Wayne County

Mon 1/19

4:40 pm-6:44 pm

Nonstop5h 04m

$336

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Detroit

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the typical price of a round-trip flight between Seattle and Detroit?

What is the cheapest month to fly to Detroit?

The cheapest month to fly to Detroit from Seattle is in January. Flight prices, which tend to average around $321, are often lower during this time because this is during the off-season. If you’re not able to fly to Detroit in January, then April is your next best option. Flight prices from Seattle to Detroit during April average around $339.

What is the cheapest day to depart on your flight to Detroit?

On average, the least expensive day to fly to Detroit from Seattle is on a Thursday. momondo users have found tickets for Thursday departures for as low as $435. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Detroit for around $542.

What is the cheapest time of day to depart on your flight to Detroit?

In the afternoon is the cheapest time of day to fly from Seattle to Detroit when you can find flight prices for as low as $418. Flying to Detroit in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $478 on average. Flights to Detroit from Seattle at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Seattle/Tacoma Intl to Detroit flight route?

Fly from Seattle/Tacoma Intl to Detroit Metropolitan Wayne County for the best Seattle/Tacoma Intl - Detroit flight prices

How far in advance should I book a flight to Detroit?

You are more likely to see cheaper flights to Detroit from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Detroit for around $410 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Detroit from Seattle for as low as $343 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Detroit flights?

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Detroit flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Detroit flights?

You could potentially save up to 1% on your flight if you consider stops on a Seattle to Detroit flight.

How have Seattle to Detroit flight prices changed over time?

As of September 2025, prices for Seattle to Detroit flights are approximately 56% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Detroit

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Detroit according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Detroit (SEA to DTT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Detroit

Best Price Found	$216
Fastest flight time	4h 13m
Direct flights	Every day
Airports in Detroit	1 airport

The best one-way flight to Detroit from Seattle in the past 72 hours is $216. The best round-trip flight deal from Seattle to Detroit found on momondo in the last 72 hours is $323.

The fastest flight from Seattle to Detroit takes 4h 13m

Direct flights go from Seattle to Detroit every day.

There is 1 airport near Detroit: Detroit Metropolitan Wayne County (DTW)

Search flight deals

How far is Seattle/Tacoma Intl to Detroit by plane?
The distance between Seattle/Tacoma Intl and Detroit is about 1931.7 mi. 4h 17m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Detroit?
Prices for flights from Seattle/Tacoma Intl Airport to Detroit are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Detroit?
There are 7 operators available for flights from Seattle/Tacoma Intl Airport to Detroit as of September 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Detroit?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Detroit.
What documentation or ID do you need to fly to Detroit?
The necessary travel and health documents for your Detroit trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Detroit?
Based on momondo bookings for flights between Seattle and Detroit, the leading plane model is Boeing 737-900, making up 18.51% of the total bookings. Other popular models include Airbus A321-100/200 with 15.88%, Boeing 737 MAX 9 with 15.73%, and Boeing 737 with 15.30%.
What is the most popular airline from Seattle to Detroit?
Based on momondo bookings for flights between Seattle and Detroit, the leading airline is Delta, making up 59% of the total bookings. Other popular airlines include Alaska Airlines with 28%, Frontier with 4%, and Hawaiian Airlines with 3%.

Best airlines flying from Seattle to Detroit

Compare and see reviews for airlines that fly from Seattle to Detroit with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $148	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Frontier	PriceFrom $150	Free Cancellation	Rating 5.8 3,172 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $183	Free Cancellation	Rating 7.8 2,723 reviews	Search Hawaiian Airlines flights
Spirit Airlines	PriceFrom $212	Free Cancellation	Rating 6.3 8,015 reviews	Search Spirit Airlines flights
Delta	PriceFrom $257	Free Cancellation	Rating 7.9 7,954 reviews	Search Delta flights
Alaska Airlines	PriceFrom $266	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $308	Free Cancellation	Rating 7.4 8,929 reviews	Search United Airlines flights

Alaska Airlines Flights From Seattle to Detroit
Alaska Airlines is one of the most popular airlines flying from Seattle to Detroit, operating 10 flights/week on average for this route. A good Alaska Airlines flight deal for Seattle to Detroit starts from $266 round-trip, up to an average price of $451. Our users have rated Alaska Airlines at 8.0/10.
Delta Flights From Seattle to Detroit
$257 is the best Delta flight deal from Seattle to Detroit found on momondo over the last 72 hours. The average Delta ticket price found was closer to $430, however, with flight time and availability significantly affecting the price. Delta (7.9/10 from 7,954 user reviews) flies into Detroit from Seattle 27 times in an average week so prices can vary.

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Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Detroit?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Detroit. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Detroit with flexible booking policies on momondo?

All flight searches from Seattle to Detroit on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Detroit?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Detroit from Seattle.

I’m not ready to book a flight from Seattle to Detroit right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Detroit from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Detroit trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Seattle to Detroit from $148

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Detroit departing on 10/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from Seattle to Detroit

Our best Frontier deals on Seattle to Detroit flight tickets

United Airlines flights from Seattle to Detroit

Our best United Airlines deals on Seattle to Detroit flight tickets

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

See travel insights to Detroit from

How to get the cheapest flight ticket from Seattle to Detroit

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Seattle and Detroit?

What is the cheapest month to fly to Detroit?

What is the cheapest day to depart on your flight to Detroit?

What is the cheapest time of day to depart on your flight to Detroit?

What is the cheapest Seattle/Tacoma Intl to Detroit flight route?

Fly from Seattle/Tacoma Intl to Detroit Metropolitan Wayne County for the best Seattle/Tacoma Intl - Detroit flight prices

How far in advance should I book a flight to Detroit?

What cabin class options are available on Seattle/Tacoma Intl to Detroit flights?

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Detroit flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Detroit flights?

You could potentially save up to 1% on your flight if you consider stops on a Seattle to Detroit flight.

How have Seattle to Detroit flight prices changed over time?

As of September 2025, prices for Seattle to Detroit flights are approximately 56% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Detroit?

Frontier, United Airlines, and Alaska Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Detroit

What airlines fly to Detroit?

Which airport is the most popular layover for flights between Seattle and Detroit?

Chicago (ORD) was the most common stop: 56% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seattle to Detroit?

Flights via Chicago (ORD) offer the lowest average round-trip price of $312.

Which layover airport has the shortest travel time from Seattle to Detroit?

Flights connecting via Minneapolis (MSP) have the shortest average one-way travel time: 6h 06m.

Which layover airport has the shortest connection time from Seattle to Detroit?

Chicago (ORD) has the shortest average layover time for this route: 0h 48m.

How many flights depart from Seattle to Detroit on average per day?

The number of flights available between Seattle and Detroit is 14 per day as of September 2025. The most frequent departure time is 9:00PM, with 44% of daily flights leaving at noon.

How many flights depart from Seattle to Detroit on average per week?

As of September 2025, there are 103 flights per week flying from Seattle to Detroit. The most common day of the week flights depart is Fri, with 20% of flights taking off on this day.

When to book flights from Seattle to Detroit

Cheap Seattle to Detroit (SEA to DTT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Detroit

Best Price Found

Fastest flight time

Direct flights

Airports in Detroit

How far is Seattle/Tacoma Intl to Detroit by plane?

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Detroit?

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Detroit?

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Detroit?

What documentation or ID do you need to fly to Detroit?

What is the most popular plane model from Seattle to Detroit?

What is the most popular airline from Seattle to Detroit?

Best airlines flying from Seattle to Detroit

Compare and see reviews for airlines that fly from Seattle to Detroit with momondo

Alaska Airlines Flights From Seattle to Detroit

Delta Flights From Seattle to Detroit

Traveling to a place near Detroit?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Detroit?

Can I find flights from Seattle to Detroit with flexible booking policies on momondo?

How can momondo help me find flights from Seattle to Detroit?

I’m not ready to book a flight from Seattle to Detroit right now. Can momondo alert me if prices change?

An easier way to manage your Detroit trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.