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Cheap flights from Detroit to Seattle from C$ 221

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SEA
1 Jul — 8 Jul1
1 adult

Cheapflights Tip: The best prices from Detroit All airports to Seattle/Tacoma Intl are usually found in October or January, booked 15 days in advance, depart on a Tuesday or Thursday 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 26 June 2025.

Round-trip from

C$ 376

One-way from

C$ 221

Popular in

July

Cheapest in

October

Average price

C$ 597

Good round-trip deal

C$ 460 or less

Good one-way deal

C$ 251 or less
Sun Country Air
  • Sun Country Air
  • 3/8-7/8
  • 2 total stops
  • 31h 29m total
  • Detroit to Seattle
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JetBlue
  • JetBlue
  • 5/9
  • 1 total stop
  • 12h 54m total
  • Detroit to Seattle
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Highest demand for flights based on searches. 16% potential increase in price (C$ 133 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Detroit (DTT) to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Detroit (DTT) to Seattle/Tacoma Intl.
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Find flight deals from Detroit to Seattle

Cheapest flights from Detroit to Seattle
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 26 June 2025.

Sun 3/86:51 p.m.DTW - SEA
1 stop16h 17mSun Country Air
Thu 7/811:59 p.m.SEA - DTW
1 stop15h 12mSun Country Air
Deal found 26/6C$ 376
Wed 1/106:30 a.m.DTW - SEA
Nonstop4h 56mHawaiian Airlines
Sat 11/108:55 a.m.SEA - DTW
Nonstop4h 21mHawaiian Airlines
Deal found 25/6C$ 379
Wed 1/108:10 p.m.DTW - SEA
Nonstop5h 15mDelta
Mon 6/1012:40 a.m.SEA - DTW
1 stop7h 59mDelta
Deal found 25/6C$ 392
Wed 16/79:59 a.m.DTW - SEA
1 stop9h 26mSpirit Airlines
Wed 16/75:30 p.m.SEA - DTW
2 stops16h 23mSpirit Airlines
Deal found 25/6C$ 395
Tue 4/115:35 p.m.DTW - SEA
1 stop8h 40mUnited Airlines
Wed 5/1111:05 a.m.SEA - DTW
1 stop8h 10mUnited Airlines
Deal found 25/6C$ 399
Fri 5/912:16 p.m.DTW - SEA
1 stop12h 54mJetBlue
Sat 13/911:40 p.m.SEA - DTW
1 stop8h 50mJetBlue
Deal found 26/6C$ 401
Mon 11/89:59 a.m.DTW - SEA
1 stop9h 26mMultiple Airlines
Wed 20/86:41 a.m.SEA - DTW
1 stop25h 18mMultiple Airlines
Deal found 25/6C$ 402
Fri 12/94:51 p.m.DTW - SEA
Nonstop4h 49mAlaska Airlines
Wed 17/99:41 p.m.SEA - DTW
Nonstop4h 24mAlaska Airlines
Deal found 25/6C$ 406
Wed 20/81:05 p.m.DTW - SEA
2 stops10h 50mSouthwest
Wed 27/812:10 p.m.SEA - DTW
1 stop6h 30mSouthwest
Deal found 26/6C$ 413
Wed 9/77:15 a.m.DTW - SEA
1 stop19h 27mFrontier
Wed 16/76:25 a.m.SEA - DTW
1 stop6h 55mFrontier
Deal found 25/6C$ 428
Mon 11/81:02 p.m.DTW - SEA
1 stop10h 02mAmerican Airlines
Tue 19/812:46 a.m.SEA - DTW
1 stop8h 46mAmerican Airlines
Deal found 25/6C$ 469

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 26 June 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

Sun 3/8

6:51 p.m.-8:08 a.m.

1 stop16h 17m

Seattle/Tacoma Intl

Thu 7/8

11:59 p.m.-6:11 p.m.

1 stop15h 12m

C$ 376

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 1/10

6:30 a.m.-8:26 a.m.

Nonstop4h 56m

Seattle/Tacoma Intl

Sat 11/10

8:55 a.m.-4:16 p.m.

Nonstop4h 21m

C$ 379

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 1/10

8:10 p.m.-10:25 p.m.

Nonstop5h 15m

Seattle/Tacoma Intl

Mon 6/10

12:40 a.m.-11:39 a.m.

1 stop7h 59m

C$ 392

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 16/7

9:59 a.m.-4:25 p.m.

1 stop9h 26m

Seattle/Tacoma Intl

Wed 16/7

5:30 p.m.-12:53 p.m.

2 stops16h 23m

C$ 395

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 4/11

5:35 p.m.-11:15 p.m.

1 stop8h 40m

Seattle/Tacoma Intl

Wed 5/11

11:05 a.m.-10:15 p.m.

1 stop8h 10m

C$ 399

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 5/9

12:16 p.m.-10:10 p.m.

1 stop12h 54m

Seattle/Tacoma Intl

Sat 13/9

11:40 p.m.-11:30 a.m.

1 stop8h 50m

C$ 401

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 11/8

9:59 a.m.-4:25 p.m.

1 stop9h 26m

Seattle/Tacoma Intl

Wed 20/8

6:41 a.m.-10:59 a.m.

1 stop25h 18m

C$ 402

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 12/9

4:51 p.m.-6:40 p.m.

Nonstop4h 49m

Seattle/Tacoma Intl

Wed 17/9

9:41 p.m.-5:05 a.m.

Nonstop4h 24m

C$ 406

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 20/8

1:05 p.m.-8:55 p.m.

2 stops10h 50m

Seattle/Tacoma Intl

Wed 27/8

12:10 p.m.-9:40 p.m.

1 stop6h 30m

C$ 413

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 9/7

7:15 a.m.-11:42 p.m.

1 stop19h 27m

Seattle/Tacoma Intl

Wed 16/7

6:25 a.m.-4:20 p.m.

1 stop6h 55m

C$ 428

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/6

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 20 June 2025.

To ensure you get the cheapest price possible for a flight from Detroit to Seattle, you should look to book at least 15 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$ 261). Flying from Detroit to Seattle in December is currently the most expensive (average of C$ 353). 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 26 June 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 59% 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 22 June 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. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 26 June 2025.

The most flights from DTT to SEA are scheduled on a Thursday (22 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from Detroit to Seattle?

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 26 June 2025.
Read through reviews of airlines operating flights from Detroit to Seattle, such as Alaska Airlines,Southwest, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,276 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,964 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.8
Good
2,522 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,838 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 4h 55m for a nonstop flight. There are 15 flights from All airports to Seattle per day from 5 airlines.

  • What are the cheapest airlines flying from Detroit to Seattle round-trip?

    Sun Country Air, at C$ 376, was found to be the cheapest airline from Detroit to Seattle.Alternate airlines to your destination round-trip include Hawaiian Airlines and Delta. These flights start at 23% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Detroit to Seattle one-way?

    One-way options have recently been found by users for as low as C$ 221 on JetBlue. Other airlines that offer cheap prices include Southwest from C$ 224 and Spirit Airlines from C$ 230 one-way.

  • 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 Finnair (96%), Korean Air (93%) or Air Tahiti Nui (92%) 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$ 246. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for C$ 418 on average our data indicates C$ 452 when flying from Detroit to Seattle.

  • Can I find deals for flights from Detroit to Seattle that include hotel bookings?

    Yes. In addition to deals on Detroit to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Detroit to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights 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$ 261). Flying from Detroit to Seattle in December is currently the most expensive (average of C$ 353). 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.

See more FAQs

Travelling to a place near Detroit?

Book flights to Detroit if you plan to visit one of these locations
Leavenworth
Tukwila
SeaTac
Tacoma
Marysville
Bothell
Renton
Olympia
Lynnwood

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Detroit to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Detroit to Seattle flights
Detroit to Portland flights
O'Hare Intl to Seattle flights

Top 5 airlines flying from Detroit to Seattle

Discover the top 5 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 26 June 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 140AverageC$ 269FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapestC$ 176AverageC$ 433FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Spirit AirlinesCheapestC$ 251AverageC$ 289FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
Alaska AirlinesCheapestC$ 356AverageC$ 534FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Hawaiian AirlinesCheapestC$ 380AverageC$ 539FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights

Fly with Cheapflights

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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