This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/3. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SEA
7 Feb — 14 Feb1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Detroit All airports to Seattle/Tacoma Intl are usually found in January or February, booked 57 days in advance, depart on a Thursday or Wednesday and return on a Wednesday
Cheap flight deals from Detroit to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 8 January 2026.
Explore the most affordable flight options available from Detroit to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 January 2026.
Fri 6/27:45 p.m.DTW - SEA
Nonstop5h 04mDelta
Sun 8/26:05 a.m.SEA - DTW
Nonstop4h 16mDelta
Deal found 5/1C$ 275
Fri 6/25:15 p.m.DTW - SEA
Nonstop5h 20mHawaiian Airlines
Fri 13/29:12 a.m.SEA - DTW
Nonstop4h 14mHawaiian Airlines
Deal found 7/1C$ 283
Wed 8/48:05 p.m.DTW - SEA
Nonstop4h 59mDelta
Tue 14/49:45 p.m.SEA - DTW
1 stop7h 25mDelta
Deal found 7/1C$ 286
Sat 28/25:22 p.m.DTW - SEA
Nonstop5h 13mAlaska Airlines
Wed 4/39:12 a.m.SEA - DTW
Nonstop4h 14mAlaska Airlines
Deal found 8/1C$ 288
Wed 11/35:22 p.m.DTW - SEA
Nonstop5h 13mAlaska Airlines
Thu 26/38:35 a.m.SEA - DTW
Nonstop4h 21mAlaska Airlines
Deal found 7/1C$ 294
Thu 7/57:09 a.m.DTW - SEA
Nonstop4h 59mAlaska Airlines
Mon 11/510:22 p.m.SEA - DTW
Nonstop4h 27mAlaska Airlines
Deal found 7/1C$ 300
Fri 27/28:05 p.m.DTW - SEA
Nonstop5h 00mDelta
Sun 8/311:15 p.m.SEA - DTW
Nonstop4h 11mDelta
Deal found 6/1C$ 301
Fri 20/29:17 a.m.DTW - SEA
1 stop8h 37mDelta
Fri 27/28:05 a.m.SEA - DTW
1 stop8h 09mDelta
Deal found 6/1C$ 303
Fri 6/35:22 p.m.DTW - SEA
Nonstop5h 13mHawaiian Airlines
Fri 13/39:12 a.m.SEA - DTW
Nonstop4h 14mHawaiian Airlines
Deal found 6/1C$ 312
Fri 24/47:52 p.m.DTW - SEA
Nonstop4h 57mDelta
Mon 4/55:59 p.m.SEA - DTW
1 stop10h 02mDelta
Deal found 6/1C$ 314
Mon 16/34:29 p.m.DTW - SEA
Nonstop4h 57mDelta
Sat 28/36:00 a.m.SEA - DTW
Nonstop4h 09mDelta
Deal found 8/1C$ 315
Best flights from Detroit to Seattle
Discover carefully curated flight deals from Detroit to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 January 2026.
Mon 23/28:15 p.m.DTW - SEA
1 stop6h 54mDelta
Fri 27/26:00 a.m.SEA - DTW
Nonstop4h 11mDelta
Deal found 7/1C$ 289
Sat 14/35:22 p.m.DTW - SEA
Nonstop5h 13mAlaska Airlines
Sat 21/38:35 a.m.SEA - DTW
Nonstop4h 21mAlaska Airlines
Deal found 6/1C$ 314
Wed 4/211:20 a.m.DTW - SEA
1 stop7h 41mUnited Airlines
Wed 11/28:40 a.m.SEA - DTW
2 stops10h 30mUnited Airlines
Deal found 7/1C$ 334
Sat 7/212:30 p.m.DTW - SEA
1 stop9h 23mDelta
Sat 7/211:10 p.m.SEA - DTW
Nonstop4h 20mDelta
Deal found 7/1C$ 289
Fri 6/27:45 p.m.DTW - SEA
Nonstop5h 04mDelta
Sat 7/25:40 p.m.SEA - DTW
1 stop9h 00mDelta
Deal found 5/1C$ 289
Thu 26/28:05 p.m.DTW - SEA
Nonstop5h 00mDelta
Mon 9/311:15 p.m.SEA - DTW
Nonstop4h 11mDelta
Deal found 6/1C$ 301
Tue 10/312:30 p.m.DTW - SEA
1 stop10h 29mDelta
Sat 14/35:55 p.m.SEA - DTW
1 stop10h 09mDelta
Deal found 6/1C$ 303
Wed 8/44:05 p.m.DTW - SEA
1 stop10h 18mDelta
Fri 17/411:59 p.m.SEA - DTW
1 stop8h 35mDelta
Deal found 7/1C$ 314
Thu 2/48:05 p.m.DTW - SEA
Nonstop4h 59mDelta
Sun 12/411:59 p.m.SEA - DTW
1 stop5h 44mDelta
Deal found 6/1C$ 314
Wed 13/54:59 p.m.DTW - SEA
1 stop10h 23mDelta
Wed 20/53:40 p.m.SEA - DTW
Nonstop4h 17mDelta
Deal found 6/1C$ 314
Sun 15/34:29 p.m.DTW - SEA
Nonstop4h 57mDelta
Mon 23/311:45 a.m.SEA - DTW
1 stop8h 09mDelta
Deal found 8/1C$ 329
Fri 13/312:20 p.m.DTW - SEA
Nonstop4h 58mDelta
Mon 23/37:59 p.m.SEA - DTW
1 stop8h 05mDelta
Deal found 8/1C$ 329
Direct flights from Detroit to Seattle
Explore direct flight options from Detroit to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 January 2026.
Fri 6/27:45 p.m.DTW - SEA
Nonstop5h 04mDelta
Sun 8/26:05 a.m.SEA - DTW
Nonstop4h 16mDelta
Deal found 5/1C$ 275
Fri 6/25:15 p.m.DTW - SEA
Nonstop5h 20mHawaiian Airlines
Fri 13/29:12 a.m.SEA - DTW
Nonstop4h 14mHawaiian Airlines
Deal found 7/1C$ 283
Fri 1/57:52 p.m.DTW - SEA
Nonstop4h 57mDelta
Tue 5/511:14 p.m.SEA - DTW
Nonstop4h 16mDelta
Deal found 7/1C$ 286
Sat 28/25:22 p.m.DTW - SEA
Nonstop5h 13mAlaska Airlines
Wed 4/39:12 a.m.SEA - DTW
Nonstop4h 14mAlaska Airlines
Deal found 7/1C$ 288
Thu 5/25:15 p.m.DTW - SEA
Nonstop5h 20mAlaska Airlines
Thu 12/29:12 a.m.SEA - DTW
Nonstop4h 14mAlaska Airlines
Deal found 6/1C$ 289
Wed 11/35:22 p.m.DTW - SEA
Nonstop5h 13mAlaska Airlines
Thu 26/38:35 a.m.SEA - DTW
Nonstop4h 21mAlaska Airlines
Deal found 7/1C$ 294
Thu 7/57:09 a.m.DTW - SEA
Nonstop4h 59mAlaska Airlines
Sun 10/510:22 p.m.SEA - DTW
Nonstop4h 27mAlaska Airlines
Deal found 7/1C$ 300
Fri 27/28:05 p.m.DTW - SEA
Nonstop5h 00mDelta
Sun 8/311:15 p.m.SEA - DTW
Nonstop4h 11mDelta
Deal found 6/1C$ 301
Fri 6/35:22 p.m.DTW - SEA
Nonstop5h 13mHawaiian Airlines
Fri 13/39:12 a.m.SEA - DTW
Nonstop4h 14mHawaiian Airlines
Deal found 6/1C$ 312
Sat 4/44:52 p.m.DTW - SEA
Nonstop5h 04mAlaska Airlines
Sat 11/48:35 a.m.SEA - DTW
Nonstop4h 24mAlaska Airlines
Deal found 7/1C$ 314
Mon 16/34:29 p.m.DTW - SEA
Nonstop4h 57mDelta
Thu 26/36:00 a.m.SEA - DTW
Nonstop4h 09mDelta
Deal found 8/1C$ 315
Sun 1/212:20 p.m.DTW - SEA
Nonstop5h 01mDelta
Sun 15/26:00 a.m.SEA - DTW
Nonstop4h 11mDelta
Deal found 6/1C$ 317
Last-minute flights from Detroit to Seattle
Discover last-minute flight deals from Detroit to Seattle. Data last updated 8 January 2026 and is based on user searches.
Sun 1/212:20 p.m.DTW - SEA
Nonstop5h 01mDelta
Sun 15/26:00 a.m.SEA - DTW
Nonstop4h 11mDelta
Deal found 6/1C$ 317
Tue 3/28:30 a.m.DTW - SEA
Nonstop5h 12mDelta
Tue 10/211:17 a.m.SEA - DTW
1 stop8h 03mDelta
Deal found 6/1C$ 286
Fri 6/27:45 p.m.DTW - SEA
Nonstop5h 04mDelta
Sun 8/26:05 a.m.SEA - DTW
Nonstop4h 16mDelta
Deal found 5/1C$ 275
Fri 6/25:15 p.m.DTW - SEA
Nonstop5h 20mHawaiian Airlines
Fri 13/29:12 a.m.SEA - DTW
Nonstop4h 14mHawaiian Airlines
Deal found 7/1C$ 283
Fri 6/27:45 p.m.DTW - SEA
Nonstop5h 04mDelta
Sat 7/25:40 p.m.SEA - DTW
1 stop9h 00mDelta
Deal found 5/1C$ 289
Fri 6/27:45 p.m.DTW - SEA
Nonstop5h 04mDelta
Fri 13/21:30 p.m.SEA - DTW
Nonstop4h 15mDelta
Deal found 7/1C$ 315
Sun 8/25:15 p.m.DTW - SEA
Nonstop5h 20mAlaska Airlines
Wed 11/39:12 a.m.SEA - DTW
Nonstop4h 14mAlaska Airlines
Deal found 6/1C$ 314
Fri 20/29:17 a.m.DTW - SEA
1 stop8h 37mDelta
Fri 27/211:05 p.m.SEA - DTW
1 stop7h 25mDelta
Deal found 6/1C$ 303
Fri 27/28:05 p.m.DTW - SEA
Nonstop5h 00mDelta
Sun 8/311:15 p.m.SEA - DTW
Nonstop4h 11mDelta
Deal found 6/1C$ 301
Sat 28/25:22 p.m.DTW - SEA
Nonstop5h 13mAlaska Airlines
Wed 4/39:12 a.m.SEA - DTW
Nonstop4h 14mAlaska Airlines
Deal found 7/1C$ 288
One-way flights from Detroit to Seattle
Search for one-way flight options from Detroit to Seattle. Find affordable one-way fares based on user searches. Data last updated 8 January 2026.
Sat 21/37:00 p.m.DTW - SEA
1 stop6h 55mSouthwest
Deal found 7/1C$ 124
Tue 3/28:30 a.m.DTW - SEA
Nonstop5h 12mDelta
Deal found 8/1C$ 138
Sat 4/44:29 p.m.DTW - SEA
Nonstop4h 57mDelta
Deal found 8/1C$ 164
Mon 2/27:45 p.m.DTW - SEA
Nonstop5h 04mDelta
Deal found 6/1C$ 166
Wed 29/43:29 p.m.DTW - SEA
2 stops10h 58mUnited Airlines
Deal found 7/1C$ 171
Fri 3/48:05 p.m.DTW - SEA
Nonstop4h 59mDelta
Deal found 7/1C$ 178
Sun 5/47:00 a.m.DTW - SEA
1 stop8h 18mDelta
Deal found 8/1C$ 192
Sun 22/26:55 p.m.DTW - SEA
1 stop8h 15mSouthwest
Deal found 8/1C$ 220
Mon 13/44:55 p.m.DTW - SEA
Nonstop5h 04mAlaska Airlines
Deal found 6/1C$ 221
Cheapflights 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, Cheapflights users made 629,999 searches. Data last updated 8 January 2026.
Use the filters below to find and compare flights from Detroit to Seattle that are best for you.
Fly from
Detroit
Fly to
Seattle
Route
Depart
Return
Price
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Mon 23/2
8:15 p.m.-12:09 a.m.
1 stop6h 54m
Seattle/Tacoma Intl
Fri 27/2
6:00 a.m.-1:11 p.m.
Nonstop4h 11m
C$ 289
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Sat 7/2
12:30 p.m.-6:53 p.m.
1 stop9h 23m
Seattle/Tacoma Intl
Sat 7/2
11:10 p.m.-6:30 a.m.
Nonstop4h 20m
C$ 289
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Fri 6/2
7:45 p.m.-9:49 p.m.
Nonstop5h 04m
Seattle/Tacoma Intl
Sat 7/2
5:40 p.m.-5:40 a.m.
1 stop9h 00m
C$ 289
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Thu 26/2
8:05 p.m.-10:05 p.m.
Nonstop5h 00m
Seattle/Tacoma Intl
Mon 9/3
11:15 p.m.-6:26 a.m.
Nonstop4h 11m
C$ 301
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Tue 10/3
12:30 p.m.-7:59 p.m.
1 stop10h 29m
Seattle/Tacoma Intl
Sat 14/3
5:55 p.m.-7:04 a.m.
1 stop10h 09m
C$ 303
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Sat 14/3
5:22 p.m.-7:35 p.m.
Nonstop5h 13m
Seattle/Tacoma Intl
Sat 21/3
8:35 a.m.-3:56 p.m.
Nonstop4h 21m
C$ 314
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Wed 8/4
4:05 p.m.-11:23 p.m.
1 stop10h 18m
Seattle/Tacoma Intl
Fri 17/4
11:59 p.m.-11:34 a.m.
1 stop8h 35m
C$ 314
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Thu 2/4
8:05 p.m.-10:04 p.m.
Nonstop4h 59m
Seattle/Tacoma Intl
Sun 12/4
11:59 p.m.-8:43 a.m.
1 stop5h 44m
C$ 314
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Wed 13/5
4:59 p.m.-12:22 a.m.
1 stop10h 23m
Seattle/Tacoma Intl
Wed 20/5
3:40 p.m.-10:57 p.m.
Nonstop4h 17m
C$ 314
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Sun 15/3
4:29 p.m.-6:26 p.m.
Nonstop4h 57m
Seattle/Tacoma Intl
Mon 23/3
11:45 a.m.-10:54 p.m.
1 stop8h 09m
C$ 329
Flights are sorted by cheapest round-trip flights first.
Deals found on 7/1
Showing 1-10 of 23 results
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Best time to book a flight from Detroit to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Detroit with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Detroit to Seattle
How far ahead should I book a flight from Detroit to Seattle?
Use this chart to determine the optimal time to book a round-trip flight from Detroit to Seattle. Price data was last updated on 2 January 2026.
To ensure you get the cheapest price possible for a flight from Detroit to Seattle, you should look to book at least 57 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Detroit to Seattle?
Currently, April is the cheapest month in which you can book a flight from Detroit to Seattle (average of C$ 227). Flying from Detroit to Seattle in August is currently the most expensive (average of C$ 369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from DTT to SEA?
Find hourly flight availability from Detroit to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 January 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Detroit to Seattle as you normally would.
Weekly flight availability from Detroit to Seattle
Explore weekly flight availability from Detroit to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 8 January 2026.
The most flights from DTT to SEA are scheduled on a Wednesday (15 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (7 on average).
How much does it cost to fly round-trip from Detroit to Seattle?
What’s the top layover airport for flights from Detroit to Seattle?
Share of one-stop round-trip flights from Detroit to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.
Los Angeles (LAX) – chosen by Cheapflights users on 26% of one-stop itineraries from Detroit to Seattle on Cheapflights.
What’s the cheapest layover airport for flights from Detroit to Seattle?
Average round-trip fare for 1-stop flights from Detroit to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Los Angeles (LAX) is the most affordable 1-stop option, with an average round-trip price of C$ 255.
What’s the fastest layover option from Detroit to Seattle?
Shortest average travel time for 1-stop one-way flights from Detroit to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 6h 50m.
Which airport typically offers the quickest layover for flights from Detroit to Seattle?
Average layover duration for 1-stop one-way flights from Detroit to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Las Vegas (LAS) offer the fastest connection on this route, with an average layover time of 1h 27m.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 8 January 2026.
Read through reviews of airlines operating flights from Detroit to Seattle, such as Alaska Airlines,Delta, andHawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
The flight was great. Don’t have to make it better. Everything was OK.
Related info for your journey
Find useful and relevant information for your journey from Detroit to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airports do I use to fly from Detroit to Seattle?
If you book a flight from Detroit to Seattle, you will be flying from All airports to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Detroit All airports (DTT) take 5h 05m for a nonstop flight. There are 9 flights from All airports to Seattle per day from 4 airlines.
How long is the flight from Detroit to Seattle?
A quick flight from Detroit to Seattle can take about 6h 54m. Delta provides one of the quickest options available for as low as C$ 289. Detroit and Seattle are separated by a distance of 3090 km.
What are the cheapest airlines flying from Detroit to Seattle round-trip?
Delta, at C$ 177, was found to be the cheapest airline from Detroit to Seattle.Alternate airlines to your destination round-trip include Spirit Airlines and Hawaiian Airlines. These flights start at 64% lower than the current average price 3 months from now.
What are the most reliable airlines from Detroit to Seattle?
No one likes to see their flight delayed. When booking a flight from Detroit to Seattle consider choosing Air Tahiti Nui (64%), Delta (55%) or Virgin Atlantic (53%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Detroit to Seattle?
Looking at all options, your cheapest flight can be booked for C$ 204. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for C$ 440 on average, our data indicates C$ 364 when flying from Detroit to Seattle.
Can I find deals for business class flights from Detroit to Seattle?
Yes. Cheapflights offers flight deals from Detroit to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Detroit to Seattle?
Currently, April is the cheapest month in which you can book a flight from Detroit to Seattle (average of C$ 227). Flying from Detroit to Seattle in August is currently the most expensive (average of C$ 369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 8 January 2026.
Discover the top 4 airlines that operate flights from Detroit to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 8 January 2026.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Detroit to Seattle?
Cheapflights makes it easy to find Detroit to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Detroit to Seattle?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Detroit to Seattle for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Detroit to Seattle with no change fees?
Yes! Cheapflights helps users easily find flights from Detroit to Seattle with no change fees.
Can Cheapflights notify me if prices for flights from Detroit to Seattle become cheaper?
Yes, Cheapflights offers price alerts on Detroit to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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