$131 Cheap Flights from Detroit (DTW) to Seattle (SEA)

View $131 flight on Fri, Oct 10, 2025Opens in a new window

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

Cheap Flights from Detroit to Seattle (DTW-SEA)

Prices were available within the past 7 days and start at $131 for one-way flights and $172 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Oct 23 - Sun, Oct 26
DTW
Detroit
SEA
Seattle
$172 Roundtrip, just found
$172
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Oct 23 from Detroit to Seattle, returning Sun, Oct 26, priced at $172 just found
Frontier Airlines
Wed, Oct 8 - Fri, Oct 10
DTW
Detroit
SEA
Seattle
$197 Roundtrip, found 16 hours ago
$197
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Wed, Oct 8 from Detroit to Seattle, returning Fri, Oct 10, priced at $197 found 16 hours ago
Frontier Airlines
Wed, Oct 15 - Fri, Oct 24
DTW
Detroit
SEA
Seattle
$208 Roundtrip, just found
$208
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Oct 15 from Detroit to Seattle, returning Fri, Oct 24, priced at $208 just found
Frontier Airlines
Fri, Oct 17 - Sun, Oct 26
DTW
Detroit
SEA
Seattle
$213 Roundtrip, just found
$213
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Oct 17 from Detroit to Seattle, returning Sun, Oct 26, priced at $213 just found
Frontier Airlines
Tue, Oct 28 - Sat, Nov 1
DTW
Detroit
SEA
Seattle
$214 Roundtrip, found 2 hours ago
$214
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, Oct 28 from Detroit to Seattle, returning Sat, Nov 1, priced at $214 found 2 hours ago
Frontier Airlines
Tue, Oct 7 - Sun, Oct 12
DTW
Detroit
SEA
Seattle
$227 Roundtrip, found 9 hours ago
$227
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Tue, Oct 7 from Detroit to Seattle, returning Sun, Oct 12, priced at $227 found 9 hours ago
JetBlue Airways
Wed, Oct 1 - Mon, Oct 6
DTW
Detroit
SEA
Seattle
$279 Roundtrip, just found
$279
Roundtrip
just found
Select JetBlue Airways flight, departing Wed, Oct 1 from Detroit to Seattle, returning Mon, Oct 6, priced at $279 just found
Sun Country Airlines
Sun, Oct 26 - Sun, Nov 9
DTW
Detroit
SEA
Seattle
$284 Roundtrip, found 2 days ago
$284
Roundtrip
found 2 days ago
Select Sun Country Airlines flight, departing Sun, Oct 26 from Detroit to Seattle, returning Sun, Nov 9, priced at $284 found 2 days ago
American Airlines
Wed, Sep 24 - Sat, Sep 27
DTW
Detroit
SEA
Seattle
$295 Roundtrip, just found
$295
Roundtrip
just found
Select American Airlines flight, departing Wed, Sep 24 from Detroit to Seattle, returning Sat, Sep 27, priced at $295 just found
Delta
Sat, Nov 8 - Wed, Nov 12
DTW
Detroit
SEA
Seattle
$297 Roundtrip, found 1 hour ago
$297
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, Nov 8 from Detroit to Seattle, returning Wed, Nov 12, priced at $297 found 1 hour ago

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

January is typically the cheapest month to fly

From $127 - $367 per traveler.

Graph displaying average flight prices per month

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $326
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $326
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, Sun Country Airlines, United
Roundtrip price
$171
Distance
1921 mi
Average flight time
1 hour 56 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 $131 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?
Lock in a cheap one-way flight from $131 or cheap return flight from $172 from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA)?
October is the least expensive month to fly from DTW to SEA. Timing your trip outside of the busy season is often the key to finding better fares.
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 Detroit Metropolitan Wayne County Airport (DTW) to Seattle - Tacoma Intl. Airport (SEA)?
While prices can change depending on when you travel, Alaska Airlines and Delta Air Lines are popular options for flights between Detroit Metropolitan Wayne County Airport (DTW) and Seattle - Tacoma Intl. Airport (SEA). You can also compare airlines on Expedia and use the "Sort by" filter to find the best deal for your DTW to SEA flight.
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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*Available to One Key members.