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$153+ Cheap flights from Detroit to Seattle (DTT - SEA)

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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SEA
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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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 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 julio 3, 2025.

Round-trip from

$266
(Priceline)

One-way from

$153
(Mytrip)

Popular in

July

Cheapest in

October

Average price

$456

Good round-trip deal

$388 or less

Good one-way deal

$233 or less
From Detroit (DTT) to Seattle/Tacoma Intl
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One-way flight from Detroit (DTT) to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 17% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 3, 2025.

This Priceline deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/229:59 amDTW - SEA
1 stop9h 26mMultiple Airlines
sáb. 8/3012:40 pmSEA - DTW
1 stop9h 04mMultiple Airlines
Deal found 7/2$266
This FlightHub deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/59:53 pmDTW - SEA
1 stop21h 32mSpirit Airlines
vie. 8/85:30 pmSEA - DTW
1 stop10h 34mSpirit Airlines
Deal found 7/2$267
This FlightHub deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/268:00 amDTW - SEA
1 stop18h 01mFrontier
jue. 9/186:12 amSEA - DTW
1 stop15h 34mFrontier
Deal found 7/3$268
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/196:55 amDTW - SEA
1 stop10h 20mAmerican Airlines
lun. 8/2512:46 amSEA - DTW
1 stop10h 56mAmerican Airlines
Deal found 7/2$269
This Sun Country Air deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/297:10 pmDTW - SEA
1 stop28h 28mSun Country Air
mié. 9/175:40 pmSEA - DTW
1 stop13h 52mSun Country Air
Deal found 7/3$275
This JetBlue deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/812:16 pmDTW - SEA
1 stop12h 54mJetBlue
vie. 10/1711:40 pmSEA - DTW
1 stop8h 50mJetBlue
Deal found 7/3$293
This Trip.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/174:51 pmDTW - SEA
Nonstop4h 49mHawaiian Airlines
mar. 9/308:30 amSEA - DTW
Nonstop4h 25mHawaiian Airlines
Deal found 7/3$296
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/263:55 pmDTW - SEA
Nonstop4h 56mDelta
sáb. 9/207:20 amSEA - DTW
1 stop8h 02mDelta
Deal found 7/3$307

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 2,558,603 searches. Data last updated julio 3, 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

mar. 7/22

9:59 am-4:25 pm

1 stop9h 26m

Seattle/Tacoma Intl

sáb. 8/30

12:40 pm-12:44 am

1 stop9h 04m

$266

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

mar. 8/5

9:53 pm-4:25 pm

1 stop21h 32m

Seattle/Tacoma Intl

vie. 8/8

5:30 pm-7:04 am

1 stop10h 34m

$267

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

mar. 8/26

9:42 am-8:02 pm

1 stop13h 20m

Seattle/Tacoma Intl

lun. 9/1

12:46 am-2:42 pm

1 stop10h 56m

$268

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

lun. 7/21

6:00 am-12:34 am

1 stop21h 34m

Seattle/Tacoma Intl

vie. 7/25

12:13 pm-7:00 am

1 stop15h 47m

$272

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

vie. 8/29

7:10 pm-8:38 pm

1 stop28h 28m

Seattle/Tacoma Intl

mié. 9/3

1:52 pm-10:04 am

1 stop17h 12m

$275

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

mié. 10/8

12:16 pm-10:10 pm

1 stop12h 54m

Seattle/Tacoma Intl

lun. 10/13

11:40 pm-11:30 am

1 stop8h 50m

$293

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

mié. 9/3

6:21 pm-8:20 pm

Nonstop4h 59m

Seattle/Tacoma Intl

mié. 9/10

6:00 am-1:12 pm

Nonstop4h 12m

$297

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

mié. 7/16

7:15 am-11:42 pm

1 stop19h 27m

$153

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

mar. 7/29

4:53 pm-4:25 pm

3 stops26h 32m

$154

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

lun. 9/1

6:00 am-9:43 am

1 stop6h 43m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 15 results
1
2

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 June 27, 2025.

The price you pay for your flight from Detroit to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 15 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $238). Flying from Detroit to Seattle in July is currently the most expensive (average of $390). 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 julio 3, 2025.

It’s optimal to fly from Detroit to Seattle in the afternoon. By choosing this option you can save up to 34% on the cost of your flight, compared to 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 June 29, 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. Sunday 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 julio 3, 2025.

The most flights from DTT to SEA are scheduled on a Monday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 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 julio 3, 2025.
Read reviews from past customers who have flown Southwest, Delta, and Hawaiian Airlines from Detroit to Seattle. 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.
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,982 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Hawaiian Airlines
7.8
Good
2,545 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,861 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,916 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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 wish to fly to Seattle from Detroit, then you need to book flights from Detroit All airports to Seattle/Tacoma Intl. There are 16 flights from All airports (DTT) to Seattle/Tacoma Intl (SEA) per day to choose from. Flights to Seattle from All airports are available from 8 different airlines, which means you should have some options if you want to compare airfare deals. 4h 49m is how long a nonstop flight from Detroit to Seattle/Tacoma Intl typically takes.

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

    Spirit Airlines, at $267, was found to be the cheapest airline from Detroit to Seattle.Alternate airlines to your destination round-trip include Frontier and American Airlines. These flights start at 25% lower than the current average price 3 months from now.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $153. Users have also found prices from $154 and $157 on Spirit Airlines and United Airlines, respectively.

  • 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%), Finnair (92%) or Japan Airlines (87%) 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 $168. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for $192 on average our data indicates $1,834 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 $238). Flying from Detroit to Seattle in July is currently the most expensive (average of $390). 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

Traveling to a place near Detroit?

Book flights to Detroit if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Lynnwood
Renton
Olympia
Shoreline
Puyallup
Cle Elum
Centralia
Kent
Federal Way
Chehalis
Kirkland
Aberdeen
Shelton

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.
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Top 8 airlines flying from Detroit to Seattle

Discover the top 8 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 2,558,603 searches. Data last updated julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$197FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$133Average$318FlexibilityNo cancel feeOn-time83%
Spirit AirlinesCheapest$144Average$278FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$178Average$367FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$200Average$446FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$256Average$394FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$256Average$399FlexibilityNo cancel feeOn-time75%
DeltaCheapest$257Average$408FlexibilityNo cancel feeOn-timeN/A

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