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

10 flights are operational daily from Detroit to Seattle as of March 2026. The most popular departure time for this route is 4:00p.m., with 59% of flights per day taking off in the afternoon.

Which airlines fly to Seattle?

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Seattle from Detroit according to our data. Alaska Airlines is the first choice among our users, with 46% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 3 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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

76 flights are operational weekly from Detroit to Seattle as of March 2026. The most popular departure day for this route is Wed, with 17% of flights per week taking off on this day.

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

Frontier and Southwest are the most popular carriers operating from Detroit to Seattle/Tacoma Intl

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

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

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

As of March 2026, there are 3 operators available to choose from for flights from Detroit to Seattle/Tacoma Intl Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Detroit to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 156 Cheap Flights from Detroit to Seattle in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from C$ 565 to C$ 343. The lowest price recently found on this route was C$ 341.

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Find the cheapest flights from Detroit to Seattle

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:20 p.m. - 9:49 a.m.

DTW

SEA

23h 29m

1 stop

11:37 a.m. - 5:35 a.m.

SEA

DTW

14h 58m

1 stop

C$ 341Multiple Airlines

Fri, 8 May - Sat, 16 May

7:40 p.m. - 12:10 a.m.

DTW

SEA

7h 30m

1 stop

11:45 p.m. - 9:45 a.m.

SEA

DTW

7h 00m

1 stop

C$ 364Southwest

Tue, 21 Apr - Tue, 28 Apr

4:10 p.m. - 12:10 a.m.

DTW

SEA

11h 00m

2 stops

11:45 p.m. - 9:45 a.m.

SEA

DTW

7h 00m

1 stop

C$ 372Southwest

Tue, 21 Apr - Tue, 28 Apr

7:40 p.m. - 12:10 a.m.

DTW

SEA

7h 30m

1 stop

11:45 p.m. - 9:45 a.m.

SEA

DTW

7h 00m

1 stop

C$ 397Southwest

Tue, 14 Apr - Tue, 28 Apr

7:40 p.m. - 12:10 a.m.

DTW

SEA

7h 30m

1 stop

11:55 p.m. - 9:45 a.m.

SEA

DTW

6h 50m

1 stop

C$ 401Southwest

Wed, 15 Apr - Mon, 20 Apr

4:10 p.m. - 12:10 a.m.

DTW

SEA

11h 00m

2 stops

6:00 a.m. - 3:35 p.m.

SEA

DTW

6h 35m

1 stop

C$ 405Southwest

Tue, 14 Apr - Tue, 28 Apr

1:40 p.m. - 10:30 p.m.

DTW

SEA

11h 50m

2 stops

10:55 a.m. - 12:15 a.m.

SEA

DTW

10h 20m

2 stops

C$ 416Southwest

Tue, 28 Apr - Mon, 4 May

6:35 a.m. - 10:55 a.m.

DTW

SEA

7h 20m

1 stop

11:45 p.m. - 9:45 a.m.

SEA

DTW

7h 00m

1 stop

C$ 429Southwest

Tue, 21 Apr - Tue, 21 Apr

7:40 p.m. - 12:10 a.m.

DTW

SEA

7h 30m

1 stop

9:20 a.m. - 11:05 p.m.

SEA

DTW

10h 45m

1 stop

C$ 436Southwest

Wed, 22 Apr - Wed, 29 Apr

8:30 p.m. - 12:05 a.m.

DTW

SEA

6h 35m

1 stop

11:55 p.m. - 9:45 a.m.

SEA

DTW

6h 50m

1 stop

C$ 439Southwest

Thu, 16 Apr - Mon, 20 Apr

Delta flights from Detroit to Seattle

Our best Delta deals on Detroit to Seattle flight tickets

Delta

21 Apr

DTW7:00 a.m.Detroit Metropolitan Wayne County

6h 55m

1 stop

SEA10:55 a.m.Seattle/Tacoma Intl

28 Apr

SEA6:00 a.m.Seattle/Tacoma Intl

4h 13m

DTW1:13 p.m.Detroit Metropolitan Wayne County

C$ 479

Delta

2 May

DTW12:55 p.m.Detroit Metropolitan Wayne County

9h 10m

1 stop

SEA7:05 p.m.Seattle/Tacoma Intl

6 May

SEA12:10 p.m.Seattle/Tacoma Intl

5h 35m

1 stop

DTW8:45 p.m.Detroit Metropolitan Wayne County

C$ 492

Delta

19 May

DTW8:55 p.m.Detroit Metropolitan Wayne County

4h 53m

SEA10:48 p.m.Seattle/Tacoma Intl

3 Jun

SEA3:40 p.m.Seattle/Tacoma Intl

4h 28m

DTW11:08 p.m.Detroit Metropolitan Wayne County

C$ 499

Alaska Airlines flights from Detroit to Seattle

Our best Alaska Airlines deals on Detroit to Seattle flight tickets

Alaska Airlines

21 Apr

DTW4:55 p.m.Detroit Metropolitan Wayne County

5h 04m

SEA6:59 p.m.Seattle/Tacoma Intl

28 Apr

SEA10:17 p.m.Seattle/Tacoma Intl

4h 27m

DTW5:44 a.m.Detroit Metropolitan Wayne County

C$ 465

Alaska Airlines

9 Apr

DTW4:52 p.m.Detroit Metropolitan Wayne County

5h 04m

SEA6:56 p.m.Seattle/Tacoma Intl

13 Apr

SEA9:55 p.m.Seattle/Tacoma Intl

9h 53m

1 stop

DTW10:48 a.m.Detroit Metropolitan Wayne County

C$ 823

Alaska Airlines

6 Apr

DTW4:52 p.m.Detroit Metropolitan Wayne County

5h 04m

SEA6:56 p.m.Seattle/Tacoma Intl

9 Apr

SEA12:35 a.m.Seattle/Tacoma Intl

9h 22m

1 stop

DTW12:57 p.m.Detroit Metropolitan Wayne County

C$ 837

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 8/5

1:20 p.m.-9:49 a.m.

1 stop23h 29m

Seattle/Tacoma Intl

Sat 16/5

11:37 a.m.-5:35 a.m.

1 stop14h 58m

C$ 341

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 21/4

7:40 p.m.-12:10 a.m.

1 stop7h 30m

Seattle/Tacoma Intl

Tue 28/4

11:45 p.m.-9:45 a.m.

1 stop7h 00m

C$ 364

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 21/4

4:10 p.m.-12:10 a.m.

2 stops11h 00m

Seattle/Tacoma Intl

Tue 28/4

11:45 p.m.-9:45 a.m.

1 stop7h 00m

C$ 372

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 14/4

7:40 p.m.-12:10 a.m.

1 stop7h 30m

Seattle/Tacoma Intl

Tue 28/4

11:45 p.m.-9:45 a.m.

1 stop7h 00m

C$ 397

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 15/4

7:40 p.m.-12:10 a.m.

1 stop7h 30m

Seattle/Tacoma Intl

Mon 20/4

11:55 p.m.-9:45 a.m.

1 stop6h 50m

C$ 401

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 14/4

4:10 p.m.-12:10 a.m.

2 stops11h 00m

Seattle/Tacoma Intl

Tue 28/4

6:00 a.m.-3:35 p.m.

1 stop6h 35m

C$ 405

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 28/4

1:40 p.m.-10:30 p.m.

2 stops11h 50m

Seattle/Tacoma Intl

Mon 4/5

10:55 a.m.-12:15 a.m.

2 stops10h 20m

C$ 416

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 21/4

6:35 a.m.-10:55 a.m.

1 stop7h 20m

Seattle/Tacoma Intl

Tue 21/4

11:45 p.m.-9:45 a.m.

1 stop7h 00m

C$ 429

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 22/4

7:40 p.m.-12:10 a.m.

1 stop7h 30m

Seattle/Tacoma Intl

Wed 29/4

9:20 a.m.-11:05 p.m.

1 stop10h 45m

C$ 436

Quickest round-trip

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Thu 16/4

8:30 p.m.-12:05 a.m.

1 stop6h 35m

Seattle/Tacoma Intl

Mon 20/4

11:55 p.m.-9:45 a.m.

1 stop6h 50m

C$ 439

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 Detroit to Seattle

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

Other information

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

What is the cheapest month to fly to Seattle?

If you aren’t able to travel to Seattle during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of C$ 390.

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

Our data shows that Tuesday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 504. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 926. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.

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

Our most recent data shows that the best time of day to fly to Seattle is in the evening. Flights from Detroit to Seattle during this time can be as low as C$ 437. Flights in the morning are often more expensive with an average ticket price of C$ 669.

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

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

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

You are more likely to see cheaper flights to Seattle from Detroit when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around C$ 501 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Detroit for as low as C$ 455 on momondo.

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

There are 4 cabin classes available to choose from on Detroit to Seattle/Tacoma Intl 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 Detroit to Seattle flights?

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

How have Detroit to Seattle flight prices changed over time?

As of March 2026, prices for Detroit to Seattle flights are approximately 45% more expensive when compared to flights at the same time last year.

When to book flights from Detroit to Seattle

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

Estimated round-trip price

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

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

Best price found	C$ 285
Fastest flight time	5h 01m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Detroit in the past 72 hours is C$ 285. The best round-trip flight deal from Detroit to Seattle found on momondo in the last 72 hours is C$ 384.

The fastest flight from Detroit to Seattle takes 5h 01m

Direct flights go from Detroit to Seattle every day.

There is 1 airport in Seattle. From Detroit there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

How far is Detroit to Seattle/Tacoma Intl by plane?
The distance between Detroit and Seattle/Tacoma Intl is about 3108.8 km. 5h 01m is a normal flight duration for this route.
When did momondo last update prices for flights from Detroit to Seattle/Tacoma Intl Airport?
Prices for flights from Detroit to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Detroit to Seattle/Tacoma Intl Airport?
As of March 2026, there are 3 operators available to choose from for flights from Detroit to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Detroit to Seattle/Tacoma Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Detroit to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Detroit to Seattle?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Detroit to Seattle is Boeing 737-900 (31.19% of total bookings). The next most popular plane models are Boeing 737 (22.67%), Airbus A321-100/200 (13.60%), and Boeing 757-300 (9.86%).
What is the most popular airline from Detroit to Seattle?
Based on momondo bookings for flights between Detroit and Seattle, the leading airline is Alaska Airlines, making up 37% of the total bookings. Other popular airlines include Frontier with 22%, Delta with 20%, and Hawaiian Airlines with 20%.

Best airlines flying from Detroit to Seattle

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

Airline	Rating	Free Cancellation	Price
Hawaiian Airlines	PriceFrom C$ 241	Free Cancellation	Rating 7.8 2,839 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom C$ 264	Free Cancellation	Rating 7.9 12,119 reviews	Search Alaska Airlines flights
Delta	PriceFrom C$ 287	Free Cancellation	Rating 7.9 8,336 reviews	Search Delta flights

Alaska Airlines Flights From Detroit to Seattle
The lowest priced Alaska Airlines flight from Detroit to Seattle from the last 72 hours was C$ 264. Generally, Alaska Airlines has 5 flights on this route every week with an average price of C$ 554. Alaska Airlines is rated 7.9/10 by our users.
Delta Flights From Detroit to Seattle
Another popular option for Detroit to Seattle flights is Delta (7.9/10, 8,336 ratings). Delta flies from Detroit to Seattle around 21 times per week, with deals starting from C$ 287 round-trip and rising to an average price of around C$ 458.

Lynnwood

Leavenworth

SeaTac

Tacoma

Marysville

Redmond

Kirkland

Puyallup

Tukwila

Olympia

Ocean Shores

Ellensburg

Bainbridge Island

Gig Harbor

Renton

Centralia

Kent

Edmonds

Federal Way

Shelton

Why use momondo?

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

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

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

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

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

momondo helps you find the best flight between Detroit and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Seattle from Detroit are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Detroit to Seattle from C$ 159

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to Seattle departing on 5/5. 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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Big names, great deals

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Filter for what you want

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Delta flights from Detroit to Seattle

Our best Delta deals on Detroit to Seattle flight tickets

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Our best Alaska Airlines deals on Detroit to Seattle flight tickets

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See travel insights to Seattle from

How to get the cheapest flight ticket from Detroit to Seattle

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

What is the cheapest month to fly to Seattle?

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

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

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

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

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

Can stopping save me money on Detroit to Seattle flights?

How have Detroit to Seattle flight prices changed over time?

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

Which airlines fly to Seattle?

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

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

When to book flights from Detroit to Seattle

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

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

Best price found

Fastest flight time

Direct flights

Airports in Seattle

Best airlines flying from Detroit to Seattle

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

Alaska Airlines Flights From Detroit to Seattle

Delta Flights From Detroit to Seattle

Travelling to a place near Seattle?

Why use momondo?

An easier way to manage your Seattle 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.

Find better results for your trip to the United States

Airports servicing Washington

Fly your favourite airline to Seattle

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Seattle

List of cabin classes available on flights landing in Seattle. Availability may vary depending on flight origin and airline.

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