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Cheap flights from Detroit to Seattle from C$ 191

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 23/6. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SEA
6 May — 13 May1
1 adult

Cheapflights Tip: The best prices from Detroit All airports to Seattle/Tacoma Intl are usually found in January or October, booked 23 days in advance, depart on a Tuesday 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 1 May 2025.

Round-trip from

C$ 329

One-way from

C$ 191

Popular in

July

Cheapest in

January

Average price

C$ 478

Good round-trip deal

C$ 555 or less

Good one-way deal

C$ 458 or less
Frontier
  • Frontier
  • 24/5-1/6
  • 2 total stops
  • 47h 03m total
  • Detroit to Seattle
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Sun Country Air
  • Sun Country Air
  • 23/6
  • 1 total stop
  • 6h 43m total
  • Detroit to Seattle
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 126 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 May 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 1 May 2025.

Sat 24/56:00 a.m.DTW - SEA
1 stop21h 37mFrontier
Sun 1/66:25 a.m.SEA - DTW
1 stop25h 26mFrontier
Deal found 30/4C$ 329
Sat 17/58:00 a.m.DTW - SEA
1 stop10h 20mMultiple Airlines
Wed 25/611:59 p.m.SEA - DTW
1 stop15h 00mMultiple Airlines
Deal found 30/4C$ 362
Thu 4/97:00 p.m.DTW - SEA
1 stop25h 16mSun Country Air
Sat 13/912:01 p.m.SEA - DTW
1 stop19h 41mSun Country Air
Deal found 30/4C$ 380
Wed 1/1012:15 p.m.DTW - SEA
1 stop12h 57mJetBlue
Tue 7/1011:45 p.m.SEA - DTW
1 stop8h 45mJetBlue
Deal found 30/4C$ 405
Wed 13/86:15 p.m.DTW - SEA
1 stop7h 27mUnited Airlines
Fri 22/85:07 a.m.SEA - DTW
1 stop6h 57mUnited Airlines
Deal found 30/4C$ 427
Mon 11/83:10 p.m.DTW - SEA
1 stop7h 52mAmerican Airlines
Mon 18/86:10 a.m.SEA - DTW
1 stop9h 09mAmerican Airlines
Deal found 30/4C$ 433
Sat 24/55:59 p.m.DTW - SEA
Nonstop4h 56mDelta
Sat 31/56:00 a.m.SEA - DTW
Nonstop4h 20mDelta
Deal found 30/4C$ 438
Fri 30/57:00 a.m.DTW - SEA
Nonstop4h 55mHawaiian Airlines
Sat 7/69:45 p.m.SEA - DTW
Nonstop4h 29mHawaiian Airlines
Deal found 1/5C$ 466
Tue 17/67:00 a.m.DTW - SEA
Nonstop4h 57mAlaska Airlines
Thu 19/69:45 p.m.SEA - DTW
Nonstop4h 18mAlaska Airlines
Deal found 29/4C$ 473
Sat 24/59:22 a.m.DTW - SEA
1 stop8h 03mSpirit Airlines
Sun 1/63:20 p.m.SEA - DTW
2 stops14h 50mSpirit Airlines
Deal found 30/4C$ 492
Tue 3/66:45 p.m.DTW - SEA
1 stop7h 45mSouthwest
Thu 5/63:45 p.m.SEA - DTW
1 stop6h 20mSouthwest
Deal found 30/4C$ 517

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 1 May 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 24/5

6:00 a.m.-12:37 a.m.

1 stop21h 37m

Seattle/Tacoma Intl

Sun 1/6

6:25 a.m.-10:51 a.m.

1 stop25h 26m

C$ 329

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 17/5

8:00 a.m.-3:20 p.m.

1 stop10h 20m

Seattle/Tacoma Intl

Wed 25/6

11:59 p.m.-5:59 p.m.

1 stop15h 00m

C$ 362

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Thu 4/9

7:00 p.m.-5:16 p.m.

1 stop25h 16m

Seattle/Tacoma Intl

Sat 13/9

12:01 p.m.-10:42 a.m.

1 stop19h 41m

C$ 380

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 1/10

12:15 p.m.-10:12 p.m.

1 stop12h 57m

Seattle/Tacoma Intl

Tue 7/10

11:45 p.m.-11:30 a.m.

1 stop8h 45m

C$ 405

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 13/8

6:15 p.m.-10:42 p.m.

1 stop7h 27m

Seattle/Tacoma Intl

Fri 22/8

5:07 a.m.-3:04 p.m.

1 stop6h 57m

C$ 427

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 11/8

3:10 p.m.-8:02 p.m.

1 stop7h 52m

Seattle/Tacoma Intl

Mon 18/8

6:10 a.m.-6:19 p.m.

1 stop9h 09m

C$ 433

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 24/5

5:59 p.m.-7:55 p.m.

Nonstop4h 56m

Seattle/Tacoma Intl

Tue 27/5

10:55 p.m.-6:16 a.m.

Nonstop4h 21m

C$ 438

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 30/5

7:00 a.m.-8:55 a.m.

Nonstop4h 55m

Seattle/Tacoma Intl

Sat 7/6

9:45 p.m.-5:14 a.m.

Nonstop4h 29m

C$ 466

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Fri 30/5

4:53 p.m.-6:53 p.m.

Nonstop5h 00m

Seattle/Tacoma Intl

Fri 30/5

9:45 p.m.-5:14 a.m.

Nonstop4h 29m

C$ 485

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 24/5

9:22 a.m.-2:25 p.m.

1 stop8h 03m

Seattle/Tacoma Intl

Sun 1/6

3:20 p.m.-9:10 a.m.

2 stops14h 50m

C$ 492

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/4

Showing 1-10 of 17 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 25 April 2025.

To ensure you get the cheapest price possible for a flight from Detroit to Seattle, you should look to book at least 23 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 1 May 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 58% 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 30 March 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 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 1 May 2025.

The most flights from DTT to SEA are scheduled on a Thursday (18 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

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 1 May 2025.
To help decide which airline to fly from Detroit to Seattle, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews
Check prices

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

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
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews
Check prices

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

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
4,294 reviews
Alaska Airlines
8.0
Very good
9,972 reviews
Check prices

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

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
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews
Check prices

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

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
7.9
Good
2,408 reviews
Alaska Airlines
8.0
Very good
9,972 reviews
Check prices

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews
Check prices

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

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 56m for a nonstop flight. There are 14 flights from All airports to Seattle per day from 4 airlines.

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

    Frontier, at C$ 329, was found to be the cheapest airline from Detroit to Seattle.Alternate airlines to your destination round-trip include Sun Country Air and JetBlue. These flights start at 32% 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$ 191 on Sun Country Air. Other airlines that offer cheap prices include United Airlines from C$ 214 and Alaska Airlines from C$ 220 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 Korean Air (92%), Hawaiian Airlines (92%) or American Airlines (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$ 267. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for C$ 397 on average our data indicates C$ 606 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
Tukwila
SeaTac
Tacoma
Marysville
Bothell
Olympia
Lynnwood
Leavenworth

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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 4 airlines flying from Detroit to Seattle

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 1 May 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 177AverageC$ 255FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapestC$ 205AverageC$ 465FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Spirit AirlinesCheapestC$ 254AverageC$ 287FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
Alaska AirlinesCheapestC$ 347AverageC$ 521FlexibilityNo cancel feeOn-time75%
Search Alaska 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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