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Cheap flights from Detroit to Seattle from $120

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 1/23. 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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0 bags

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Cheap round-trip flights

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Alaska Airlines Logo
5:15 pm - 7:35 pmDTW-SEA
5h 20mnonstop
Alaska Airlines Logo
9:12 am - 4:26 pmSEA-DTW
4h 14mnonstop
$197Alaska Airlines
Find Deal
Tue, Feb 10 - Sat, Feb 14
Delta Logo
8:30 am - 10:42 amDTW-SEA
5h 12mnonstop
Delta Logo
6:05 am - 1:21 pmSEA-DTW
4h 16mnonstop
$199Delta
Find Deal
Thu, Jan 8 - Mon, Jan 12
Delta Logo
12:20 pm - 2:21 pmDTW-SEA
5h 01mnonstop
Delta Logo
6:05 am - 1:20 pmSEA-DTW
4h 15mnonstop
$200Delta
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Fri, Jan 9 - Sat, Jan 17
Multiple Airlines Logo
4:43 pm - 1:34 pmDTW-SEA
23h 51m1 stop
Multiple Airlines Logo
10:51 am - 4:40 amSEA-DTW
14h 49m1 stop
$202Multiple Airlines
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Fri, Jan 9 - Fri, Jan 23
Frontier Logo
6:00 am - 4:29 pmDTW-SEA
13h 29m1 stop
Frontier Logo
12:59 pm - 12:04 amSEA-DTW
8h 05m1 stop
$203Frontier
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Mon, Jan 12 - Thu, Jan 15
Multiple Airlines Logo
7:15 pm - 9:36 amDTW-SEA
17h 21m1 stop
Multiple Airlines Logo
9:25 pm - 4:19 pmSEA-DTW
15h 54m2 stops
$207Multiple Airlines
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Thu, Jan 22 - Sun, Jan 25
Delta Logo
7:45 pm - 9:49 pmDTW-SEA
5h 04mnonstop
Delta Logo
9:59 pm - 9:20 amSEA-DTW
8h 21m1 stop
$209Delta
Find Deal
Fri, Jan 9 - Sat, Jan 17
Frontier Logo
6:00 am - 4:29 pmDTW-SEA
13h 29m1 stop
Frontier Logo
9:25 pm - 4:19 pmSEA-DTW
15h 54m2 stops
$212Frontier
Find Deal
Mon, Jan 12 - Thu, Jan 22
Multiple Airlines Logo
9:25 am - 4:01 pmDTW-SEA
9h 36m1 stop
Multiple Airlines Logo
1:02 pm - 12:04 amSEA-DTW
8h 02m1 stop
$215Multiple Airlines
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Fri, Dec 12 - Fri, Jan 9
Multiple Airlines Logo
5:15 pm - 7:35 pmDTW-SEA
5h 20mnonstop
Multiple Airlines Logo
12:19 pm - 11:24 amSEA-DTW
20h 05m1 stop
$216Multiple Airlines
Find Deal
Mon, Jan 12 - Thu, Jan 15

Alaska Airlines flights from Detroit to Seattle

Our best Alaska Airlines deals on Detroit to Seattle flight tickets
Alaska Airlines
Feb 10
DTW5:15 pmDetroit Metropolitan Wayne County
5h 20m
SEA7:35 pmSeattle/Tacoma Intl
Feb 14
SEA9:12 amSeattle/Tacoma Intl
4h 14m
DTW4:26 pmDetroit Metropolitan Wayne County
$197
Find similar
Alaska Airlines
Feb 13
DTW5:22 pmDetroit Metropolitan Wayne County
5h 13m
SEA7:35 pmSeattle/Tacoma Intl
Feb 17
SEA9:12 amSeattle/Tacoma Intl
4h 14m
DTW4:26 pmDetroit Metropolitan Wayne County
$238
Find similar
Alaska Airlines
Jan 8
DTW5:15 pmDetroit Metropolitan Wayne County
5h 20m
SEA7:35 pmSeattle/Tacoma Intl
Jan 18
SEA9:02 amSeattle/Tacoma Intl
4h 17m
DTW4:19 pmDetroit Metropolitan Wayne County
$241
Find similar

Delta flights from Detroit to Seattle

Our best Delta deals on Detroit to Seattle flight tickets
Delta
Jan 8
DTW8:30 amDetroit Metropolitan Wayne County
5h 12m
SEA10:42 amSeattle/Tacoma Intl
Jan 12
SEA6:05 amSeattle/Tacoma Intl
4h 16m
DTW1:21 pmDetroit Metropolitan Wayne County
$199
Find similar
Delta
Jan 9
DTW12:20 pmDetroit Metropolitan Wayne County
5h 01m
SEA2:21 pmSeattle/Tacoma Intl
Jan 17
SEA6:05 amSeattle/Tacoma Intl
4h 15m
DTW1:20 pmDetroit Metropolitan Wayne County
$200
Find similar
Delta
Jan 9
DTW7:45 pmDetroit Metropolitan Wayne County
5h 04m
SEA9:49 pmSeattle/Tacoma Intl
Jan 17
SEA9:59 pmSeattle/Tacoma Intl
8h 21m
1 stop
DTW9:20 amDetroit Metropolitan Wayne County
$209
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 26, 2025.
Use the filters below to find and compare flights from Detroit to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 2/10

5:15 pm-7:35 pm

Nonstop5h 20m

Seattle/Tacoma Intl

Sat 2/14

9:12 am-4:26 pm

Nonstop4h 14m

$197

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Thu 1/8

8:30 am-10:42 am

Nonstop5h 12m

Seattle/Tacoma Intl

Mon 1/12

6:05 am-1:21 pm

Nonstop4h 16m

$199

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 1/9

12:20 pm-2:21 pm

Nonstop5h 01m

Seattle/Tacoma Intl

Sat 1/17

6:05 am-1:20 pm

Nonstop4h 15m

$200

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 1/9

4:43 pm-1:34 pm

1 stop23h 51m

Seattle/Tacoma Intl

Fri 1/23

10:51 am-4:40 am

1 stop14h 49m

$202

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 1/12

6:00 am-4:29 pm

1 stop13h 29m

Seattle/Tacoma Intl

Thu 1/15

12:59 pm-12:04 am

1 stop8h 05m

$203

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Thu 1/22

7:15 pm-9:36 am

1 stop17h 21m

Seattle/Tacoma Intl

Sun 1/25

9:25 pm-4:19 pm

2 stops15h 54m

$207

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 1/9

7:45 pm-9:49 pm

Nonstop5h 04m

Seattle/Tacoma Intl

Sat 1/17

9:59 pm-9:20 am

1 stop8h 21m

$209

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 1/12

6:00 am-4:29 pm

1 stop13h 29m

Seattle/Tacoma Intl

Thu 1/22

9:25 pm-4:19 pm

2 stops15h 54m

$212

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 12/12

9:25 am-4:01 pm

1 stop9h 36m

Seattle/Tacoma Intl

Fri 1/9

1:02 pm-12:04 am

1 stop8h 02m

$215

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 1/12

5:15 pm-7:35 pm

Nonstop5h 20m

Seattle/Tacoma Intl

Thu 1/15

12:19 pm-11:24 am

1 stop20h 05m

$216

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

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

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

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Detroit to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $273. If you don’t want to visit Seattle in January, then you should wait until February to fly from Detroit, when ticket prices are also cheap, with an average price of $302.

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

On average, the least expensive day to fly to Seattle from Detroit is on a Friday. momondo users have found tickets for Friday departures for as low as $486. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Detroit because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $574.

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

Flying to Seattle from Detroit in the evening is the least expensive time of day to depart. momondo users have found prices as low as $368 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $546. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 $377 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 $345 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?

No. A direct flight is the cheapest option for a flight between Detroit to Seattle.

How have Detroit to Seattle flight prices changed over time?

As of November 2025, prices for Detroit to Seattle flights are approximately 83% 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

$229

Fastest flight time

5h 00m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Detroit in the past 72 hours is $229. The best round-trip flight deal from Detroit to Seattle found on momondo in the last 72 hours is $328.
The fastest flight from Detroit to Seattle takes 5h 00m
Direct flights go from Detroit to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

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

    A flight from Detroit to Seattle/Tacoma Intl will travel around 1931.7 mi. Typically, this will take 5h 01m by plane in normal conditions.

  • 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 are updated daily.

  • How many operators does momondo search 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 for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Detroit to Seattle/Tacoma Intl Airport.

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

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

  • What is the most popular airline from Detroit to Seattle?

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
Spirit AirlinesPriceFrom $128Free CancellationRating
6.3
8,159 reviews
Search Spirit Airlines flights
Sun Country AirPriceFrom $133Free CancellationRating
6.9
333 reviews
Search Sun Country Air flights
FrontierPriceFrom $151Free CancellationRating
5.8
3,101 reviews
Search Frontier flights
American AirlinesPriceFrom $174Free CancellationRating
7.2
11,039 reviews
Search American Airlines flights
Hawaiian AirlinesPriceFrom $178Free CancellationRating
7.8
2,815 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $222Free CancellationRating
8.0
4,253 reviews
Search Southwest flights
United AirlinesPriceFrom $240Free CancellationRating
7.4
9,050 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $243Free CancellationRating
8.0
11,360 reviews
Search Alaska Airlines flights
DeltaPriceFrom $257Free CancellationRating
7.9
8,003 reviews
Search Delta flights

  • Alaska Airlines Flights From Detroit to Seattle

    Alaska Airlines flies from Detroit to Seattle around 7 times per week, with 11,363 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Detroit to Seattle in the last 72 hours was $243 (round-trip), much lower than the average airfare cost of $398 for Alaska Airlines flights on this route.

  • Delta Flights From Detroit to Seattle

    Delta (7.9/10 from 8,003 reviews) operates around 24 flights from Detroit to Seattle in any given week. The average Delta airfare for this route is around $414, with deals from around $257 rare but found on momondo. Referenced prices are for round-trip Detroit to Seattle flight searches in the last 72 hours.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Redmond
Tukwila
Cle Elum
Lakewood
Federal Way
Fife
Centralia
Kirkland
Westport
Shoreline

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Detroit.

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

Flights from Detroit to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Detroit to Seattle.

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

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Detroit and alert you when they change.

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.
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