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 27/1. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SEA
29 Nov — 6 Dec1
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 48 days in advance, depart on a Wednesday or Friday 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 30 October 2025.
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 30 October 2025.
Sat 6/128:12 p.m.DTW - SEA
Nonstop5h 13mDelta
Tue 9/123:15 p.m.SEA - DTW
Nonstop4h 18mDelta
Deal found 28/10C$ 303
Wed 24/124:25 p.m.DTW - SEA
Nonstop5h 03mDelta
Wed 31/129:45 a.m.SEA - DTW
1 stop10h 14mDelta
Deal found 29/10C$ 317
Sat 22/1112:15 p.m.DTW - SEA
1 stop7h 40mDelta
Sun 7/1211:15 p.m.SEA - DTW
Nonstop4h 24mDelta
Deal found 28/10C$ 331
Fri 7/114:30 p.m.DTW - SEA
1 stop9h 40mUnited Airlines
Sat 8/1111:30 p.m.SEA - DTW
1 stop7h 15mUnited Airlines
Deal found 28/10C$ 337
Sat 6/127:25 a.m.DTW - SEA
1 stop7h 22mUnited Airlines
Tue 9/1210:40 a.m.SEA - DTW
2 stops10h 18mUnited Airlines
Deal found 28/10C$ 338
Thu 20/118:25 a.m.DTW - SEA
Nonstop5h 21mDelta
Mon 24/1110:19 a.m.SEA - DTW
1 stop10h 00mDelta
Deal found 28/10C$ 345
Wed 12/112:10 p.m.DTW - SEA
1 stop7h 42mUnited Airlines
Wed 19/115:00 a.m.SEA - DTW
2 stops8h 45mUnited Airlines
Deal found 29/10C$ 355
Thu 20/117:00 a.m.DTW - SEA
1 stop6h 54mDelta
Sun 23/1111:55 p.m.SEA - DTW
1 stop6h 00mDelta
Deal found 28/10C$ 359
Wed 26/114:32 p.m.DTW - SEA
Nonstop5h 08mDelta
Wed 3/123:15 p.m.SEA - DTW
Nonstop4h 18mDelta
Deal found 27/10C$ 360
Wed 19/116:02 a.m.DTW - SEA
1 stop9h 32mUnited Airlines
Mon 24/1112:35 p.m.SEA - DTW
1 stop6h 40mUnited Airlines
Deal found 30/10C$ 362
Fri 7/114:30 p.m.DTW - SEA
1 stop9h 40mUnited Airlines
Mon 10/1111:30 p.m.SEA - DTW
1 stop7h 15mUnited Airlines
Deal found 28/10C$ 364
Thu 13/117:15 a.m.DTW - SEA
2 stops9h 39mUnited Airlines
Fri 20/211:59 p.m.SEA - DTW
1 stop6h 33mUnited Airlines
Deal found 29/10C$ 369
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 30 October 2025.
Sat 22/117:13 a.m.DTW - SEA
Nonstop5h 07mAlaska Airlines
Fri 28/1110:05 p.m.SEA - DTW
Nonstop4h 16mAlaska Airlines
Deal found 27/10C$ 317
Sat 22/118:06 p.m.DTW - SEA
Nonstop5h 17mDelta
Sun 7/123:15 p.m.SEA - DTW
Nonstop4h 18mDelta
Deal found 29/10C$ 317
Wed 19/118:06 p.m.DTW - SEA
Nonstop5h 17mDelta
Sun 23/1111:10 p.m.SEA - DTW
Nonstop4h 19mDelta
Deal found 30/10C$ 317
Tue 23/126:40 a.m.DTW - SEA
Nonstop5h 09mAlaska Airlines
Tue 6/18:30 a.m.SEA - DTW
Nonstop4h 26mAlaska Airlines
Deal found 29/10C$ 345
Thu 27/114:32 p.m.DTW - SEA
Nonstop5h 08mDelta
Tue 2/1211:59 p.m.SEA - DTW
1 stop6h 04mDelta
Deal found 27/10C$ 331
Wed 17/125:41 p.m.DTW - SEA
Nonstop5h 10mAlaska Airlines
Sat 27/1210:01 p.m.SEA - DTW
Nonstop4h 19mAlaska Airlines
Deal found 30/10C$ 345
Sun 23/118:06 p.m.DTW - SEA
Nonstop5h 17mDelta
Sun 7/1211:15 p.m.SEA - DTW
Nonstop4h 24mDelta
Deal found 28/10C$ 331
Wed 10/128:25 a.m.DTW - SEA
Nonstop5h 15mDelta
Sun 14/1210:25 a.m.SEA - DTW
1 stop9h 56mDelta
Deal found 28/10C$ 331
Mon 24/118:25 a.m.DTW - SEA
Nonstop5h 21mDelta
Mon 8/123:15 p.m.SEA - DTW
Nonstop4h 18mDelta
Deal found 29/10C$ 331
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 30 October 2025.
Sat 6/128:12 p.m.DTW - SEA
Nonstop5h 13mDelta
Tue 9/123:15 p.m.SEA - DTW
Nonstop4h 18mDelta
Deal found 28/10C$ 303
Sat 22/118:06 p.m.DTW - SEA
Nonstop5h 17mDelta
Mon 8/123:15 p.m.SEA - DTW
Nonstop4h 18mDelta
Deal found 28/10C$ 317
Thu 4/124:32 p.m.DTW - SEA
Nonstop5h 00mDelta
Mon 8/126:00 a.m.SEA - DTW
Nonstop4h 14mDelta
Deal found 27/10C$ 331
Wed 17/125:41 p.m.DTW - SEA
Nonstop5h 10mAlaska Airlines
Sat 27/1210:01 p.m.SEA - DTW
Nonstop4h 19mAlaska Airlines
Deal found 30/10C$ 345
Fri 19/126:40 a.m.DTW - SEA
Nonstop5h 09mAlaska Airlines
Thu 1/18:30 a.m.SEA - DTW
Nonstop4h 26mAlaska Airlines
Deal found 29/10C$ 359
Sat 28/28:10 p.m.DTW - SEA
Nonstop5h 15mDelta
Sun 8/311:05 p.m.SEA - DTW
Nonstop4h 23mDelta
Deal found 30/10C$ 360
Thu 20/118:25 a.m.DTW - SEA
Nonstop5h 21mDelta
Mon 24/113:15 p.m.SEA - DTW
Nonstop4h 10mDelta
Deal found 28/10C$ 374
Fri 19/126:40 a.m.DTW - SEA
Nonstop5h 09mAlaska Airlines
Sat 3/110:01 p.m.SEA - DTW
Nonstop4h 19mAlaska Airlines
Deal found 29/10C$ 387
Sat 22/117:13 a.m.DTW - SEA
Nonstop5h 07mAlaska Airlines
Wed 26/1110:05 p.m.SEA - DTW
Nonstop4h 16mAlaska Airlines
Deal found 29/10C$ 401
Sat 20/124:52 p.m.DTW - SEA
Nonstop5h 13mAlaska Airlines
Fri 2/110:01 p.m.SEA - DTW
Nonstop4h 19mAlaska Airlines
Deal found 29/10C$ 415
Wed 26/114:32 p.m.DTW - SEA
Nonstop5h 08mDelta
Thu 27/115:25 a.m.SEA - DTW
Nonstop4h 15mDelta
Deal found 27/10C$ 418
Wed 17/125:41 p.m.DTW - SEA
Nonstop5h 10mHawaiian Airlines
Sat 3/110:01 p.m.SEA - DTW
Nonstop4h 19mHawaiian Airlines
Deal found 28/10C$ 419
Last-minute flights from Detroit to Seattle
Discover last-minute flight deals from Detroit to Seattle. Data last updated 30 October 2025 and is based on user searches.
Wed 12/119:15 a.m.DTW - SEA
2 stops10h 00mUnited Airlines
Wed 19/1112:35 p.m.SEA - DTW
1 stop6h 40mUnited Airlines
Deal found 29/10C$ 355
Wed 12/112:35 p.m.DTW - SEA
1 stop9h 19mUnited Airlines
Fri 14/115:05 a.m.SEA - DTW
1 stop6h 53mUnited Airlines
Deal found 29/10C$ 364
Thu 13/119:07 a.m.DTW - SEA
1 stop7h 47mUnited Airlines
Tue 18/1112:35 p.m.SEA - DTW
1 stop8h 00mUnited Airlines
Deal found 30/10C$ 337
Thu 13/117:15 a.m.DTW - SEA
2 stops9h 39mUnited Airlines
Fri 20/211:59 p.m.SEA - DTW
1 stop6h 33mUnited Airlines
Deal found 29/10C$ 369
Wed 19/116:02 a.m.DTW - SEA
1 stop9h 32mUnited Airlines
Mon 24/1112:35 p.m.SEA - DTW
1 stop6h 40mUnited Airlines
Deal found 30/10C$ 362
Fri 21/118:12 p.m.DTW - SEA
1 stop6h 59mDelta
Sun 23/1111:55 p.m.SEA - DTW
1 stop6h 00mDelta
Deal found 29/10C$ 359
Sat 22/118:06 p.m.DTW - SEA
Nonstop5h 17mDelta
Sun 7/126:00 a.m.SEA - DTW
Nonstop4h 14mDelta
Deal found 30/10C$ 317
Sun 23/118:25 a.m.DTW - SEA
Nonstop5h 21mDelta
Sun 7/1211:15 p.m.SEA - DTW
Nonstop4h 24mDelta
Deal found 29/10C$ 331
Mon 24/118:12 p.m.DTW - SEA
1 stop6h 59mDelta
Wed 3/127:20 a.m.SEA - DTW
1 stop8h 04mDelta
Deal found 30/10C$ 345
Wed 26/114:32 p.m.DTW - SEA
Nonstop5h 08mDelta
Wed 3/123:15 p.m.SEA - DTW
Nonstop4h 18mDelta
Deal found 28/10C$ 360
Wed 26/118:06 p.m.DTW - SEA
Nonstop5h 17mDelta
Fri 5/126:00 a.m.SEA - DTW
Nonstop4h 14mDelta
Deal found 30/10C$ 374
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 30 October 2025.
Wed 26/115:51 p.m.DTW - SEA
1 stop7h 37mUnited Airlines
Deal found 27/10C$ 236
Sat 8/1111:00 a.m.DTW - SEA
2 stops12h 51mUnited Airlines
Deal found 28/10C$ 239
Tue 23/125:52 p.m.DTW - SEA
1 stop26h 26mSun Country Air
Deal found 29/10C$ 242
Mon 26/14:45 p.m.DTW - SEA
1 stop7h 30mUnited Airlines
Deal found 29/10C$ 243
Tue 4/119:15 a.m.DTW - SEA
2 stops10h 00mUnited Airlines
Deal found 28/10C$ 244
Wed 26/114:32 p.m.DTW - SEA
Nonstop5h 08mDelta
Deal found 30/10C$ 250
Thu 27/114:32 p.m.DTW - SEA
Nonstop5h 08mDelta
Deal found 30/10C$ 264
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 30 October 2025.
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
Sat 22/11
7:13 a.m.-9:20 a.m.
Nonstop5h 07m
Seattle/Tacoma Intl
Fri 28/11
10:05 p.m.-5:21 a.m.
Nonstop4h 16m
C$ 317
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Sat 22/11
8:06 p.m.-10:23 p.m.
Nonstop5h 17m
Seattle/Tacoma Intl
Sun 7/12
3:15 p.m.-10:33 p.m.
Nonstop4h 18m
C$ 317
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Wed 19/11
8:06 p.m.-10:23 p.m.
Nonstop5h 17m
Seattle/Tacoma Intl
Sun 23/11
11:10 p.m.-6:29 a.m.
Nonstop4h 19m
C$ 317
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Thu 27/11
4:32 p.m.-6:40 p.m.
Nonstop5h 08m
Seattle/Tacoma Intl
Tue 2/12
11:59 p.m.-9:03 a.m.
1 stop6h 04m
C$ 331
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Sun 23/11
8:06 p.m.-10:23 p.m.
Nonstop5h 17m
Seattle/Tacoma Intl
Sun 7/12
11:15 p.m.-6:39 a.m.
Nonstop4h 24m
C$ 331
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Wed 10/12
8:25 a.m.-10:40 a.m.
Nonstop5h 15m
Seattle/Tacoma Intl
Sun 14/12
10:25 a.m.-11:21 p.m.
1 stop9h 56m
C$ 331
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Mon 24/11
8:25 a.m.-10:46 a.m.
Nonstop5h 21m
Seattle/Tacoma Intl
Mon 8/12
3:15 p.m.-10:33 p.m.
Nonstop4h 18m
C$ 331
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Tue 23/12
6:40 a.m.-8:49 a.m.
Nonstop5h 09m
Seattle/Tacoma Intl
Tue 6/1
8:30 a.m.-3:56 p.m.
Nonstop4h 26m
C$ 345
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Wed 17/12
5:41 p.m.-7:51 p.m.
Nonstop5h 10m
Seattle/Tacoma Intl
Sat 27/12
10:01 p.m.-5:20 a.m.
Nonstop4h 19m
C$ 345
DetroitSeattle
DTW - SEA
DTWSEA
Detroit Metropolitan Wayne County
Tue 27/1
9:00 a.m.-6:26 p.m.
2 stops12h 26m
C$ 236
Flights are sorted by cheapest round-trip flights first.
Deals found on 29/10
Showing 1-10 of 19 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 24 October 2025.
To ensure you get the cheapest price possible for a flight from Detroit to Seattle, you should look to book at least 48 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, January is the cheapest month in which you can book a flight from Detroit to Seattle (average of C$ 209). Flying from Detroit to Seattle in August is currently the most expensive (average of C$ 367). 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 30 October 2025.
When flying from Detroit to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 62% versus a flight in the morning.
What is the cheapest day to fly from Detroit to Seattle?
Use this chart to determine the cheapest time to fly round-trip from Detroit to Seattle. Price data was last updated on 26 October 2025.
Travelers seeking maximum savings on their Detroit to Seattle flight should consider departing on Tuesday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 35% 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$ 284.
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 30 October 2025.
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.
Great smooth flight. Was hour and half late though. Don't know why
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 07m for a nonstop flight. There are 6 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 5h 07m. Alaska Airlines provides one of the quickest options available for as low as C$ 317. Detroit and Seattle are separated by a distance of 3090 km. Most flights are nonstop.
What are the cheapest airlines flying from Detroit to Seattle round-trip?
Delta, at C$ 179, 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 France (99%), Japan Airlines (90%) or Alaska Airlines (90%) 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$ 136. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for C$ 397 on average, our data indicates C$ 648 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, January is the cheapest month in which you can book a flight from Detroit to Seattle (average of C$ 209). Flying from Detroit to Seattle in August is currently the most expensive (average of C$ 367). 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 30 October 2025.
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 30 October 2025.
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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