$109 Cheap Flights from Detroit (DTW) to Seattle (SEA)

View $109 flight on Sat, Sep 13, 2025Opens in a new window

Popular airlines from Detroit Metropolitan Wayne County Airport (DTW) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Detroit to Seattle (DTW-SEA)

Prices were available within the past 7 days and start at $109 for one-way flights and $196 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bargain Flight
Wed, Oct 1 - Wed, Oct 8
DTW
Detroit
SEA
Seattle
$196 Roundtrip, found 1 hour ago
$196
Roundtrip
found 1 hour ago
Select Bargain Flight flight, departing Wed, Oct 1 from Detroit to Seattle, returning Wed, Oct 8, priced at $196 found 1 hour ago
Bargain Flight
Thu, Sep 11 - Wed, Sep 17
DTW
Detroit
SEA
Seattle
$197 Roundtrip, just found
$197
Roundtrip
just found
Select Bargain Flight flight, departing Thu, Sep 11 from Detroit to Seattle, returning Wed, Sep 17, priced at $197 just found
Alaska Airlines
Thu, Sep 18 - Wed, Sep 24
DTW
Detroit
SEA
Seattle
$197 Roundtrip, just found
$197
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Sep 18 from Detroit to Seattle, returning Wed, Sep 24, priced at $197 just found
Delta
Sat, Oct 25 - Fri, Oct 31
DTW
Detroit
SEA
Seattle
$197 Roundtrip, just found
$197
Roundtrip
just found
Select Delta flight, departing Sat, Oct 25 from Detroit to Seattle, returning Fri, Oct 31, priced at $197 just found
Delta
Wed, Sep 3 - Sun, Sep 7
DTW
Detroit
SEA
Seattle
$207 Roundtrip, just found
$207
Roundtrip
just found
Select Delta flight, departing Wed, Sep 3 from Detroit to Seattle, returning Sun, Sep 7, priced at $207 just found
Southwest Airlines
Thu, Nov 20 - Tue, Nov 25
DTW
Detroit
SEA
Seattle
$213 Roundtrip, found 5 days ago
$213
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Thu, Nov 20 from Detroit to Seattle, returning Tue, Nov 25, priced at $213 found 5 days ago
American Airlines
Sun, Sep 21 - Tue, Sep 30
DTW
Detroit
SEA
Seattle
$217 Roundtrip, just found
$217
Roundtrip
just found
Select American Airlines flight, departing Sun, Sep 21 from Detroit to Seattle, returning Tue, Sep 30, priced at $217 just found
Alaska Airlines
Tue, Sep 30 - Tue, Sep 30
DTW
Detroit
SEA
Seattle
$231 Roundtrip, found 1 hour ago
$231
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Sep 30 from Detroit to Seattle, returning Tue, Sep 30, priced at $231 found 1 hour ago
Alaska Airlines
Tue, Sep 2 - Mon, Sep 8
DTW
Detroit
SEA
Seattle
$233 Roundtrip, found 1 hour ago
$233
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Sep 2 from Detroit to Seattle, returning Mon, Sep 8, priced at $233 found 1 hour ago
Bargain Flight
Wed, Oct 1 - Fri, Oct 3
DTW
Detroit
SEA
Seattle
$235 Roundtrip, found 10 hours ago
$235
Roundtrip
found 10 hours ago
Select Bargain Flight flight, departing Wed, Oct 1 from Detroit to Seattle, returning Fri, Oct 3, priced at $235 found 10 hours ago

Find the cheapest month to fly from Detroit (DTW) to Seattle (SEA)

January is typically the cheapest month to fly

From $116 - $407 per traveler.

Graph displaying average flight prices per month

Flights from Detroit (DTW) to Seattle (SEA)
Origin airport
Detroit Metropolitan Wayne County
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United
Roundtrip price
$195
Distance
1921 mi
Average flight time
1 hour 58 mins

Detroit to Seattle Flights

The cheapest times to fly from Detroit to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Detroit to Seattle are during the month of October. You can find some of the cheapest flights from Detroit to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Detroit to Seattle

Sunday is one of the best days to book for cheap flights from Detroit to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Detroit to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Detroit to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $109 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Detroit to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Detroit to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA) cost?
Grab cheap return tickets starting from $297 from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Alaska Airlines flight leaving DTW on August 5 2025 and touching down at SEA. The price was last updated on July 13 2025 and has not changed since.
What is the cheapest month to fly from DTW to SEA?
The cheapest flights from DTW to SEA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA)?
Take a direct flight with Delta Air Lines and fly straight from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA).
What is the cheapest airline that flies from DTW to SEA?
With prices as low as $169 for a one-way journey from DTW to SEA, Alaska Airlines is currently the cheapest carrier for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DTW on October 8 2025. Prices were last updated on July 13 2025 and have not changed since.
How many flights per day from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA)?
With an average of 3 nonstop flights departing from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA) each day, you'll be cruising above the clouds before you know it.
What are the most popular departure times for flights from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA)?
More people fly between DTW and SEA at 8 AM than at any other time. Looking to skip the crowds? Consider flying outside peak hours and you could save on your fare as well.
What day of the week has the most flights from DTW to SEA?
If you depart on a Wednesday, you'll get the widest range of options for flights from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA).
What is the earliest flight from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA)?
The earliest flight taking off from Detroit Metropolitan Wayne County Airport (DTW) is at around 8:25AM UTC-5. Board this plane and you'll arrive at Seattle - Tacoma Intl. Airport (SEA) at approximately 10:45AM UTC-8. The overall travel time is 5h 20m.
How long does it take to fly from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA)?
It takes around 5 hours and 14 minutes to cover the 1,900 mi from DTW to SEA.
What airline has the least delays from DTW to SEA?
With 100% of journeys usually arriving on schedule, American Airlines has the best on-time performance for nonstop flights from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA). To check your flight status and get notified about any changes, use the Expedia App.
What is the best time to fly from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA)?
To reach Seattle - Tacoma Intl. Airport (SEA) on schedule, pick a flight that leaves from Detroit Metropolitan Wayne County Airport (DTW) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Seattle from Detroit Metropolitan Wayne County Airport (DTW)?
Check out your flight options from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA). This is the only airport in Seattle you can land at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute bookings from DTW to SEA are generally more expensive. For the lowest prices, start looking for flights ahead of time. That being said, if your travel plans are flexible, it's possible to find a cheap fare just before your departure.
Is it cheaper to book a DTW to SEA flight and hotel package?
Compared with arranging hotels and flights separately, booking a DTW to SEA flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place will take the stress out of planning your trip. Simply pick your flights and choose from our extensive range of hotels, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA)?
If you reserved your DTW to SEA flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

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