What are the cheapest airlines flying from Detroit Metropolitan Wayne County Airport to Seattle round-trip?

Our cheapest airline available from Detroit Metropolitan Wayne County Airport to Seattle is Delta. Our recent data shows that you can find tickets from as low as $256 on this airline. Additional options worth looking into are Frontier and American Airlines, starting at $257 and $263 round-trip. These flights start at 32% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Detroit Metropolitan Wayne County Airport to Seattle one-way?

The cheapest airline one-way is Sun Country Air, with whom users have recently found tickets for as low as $134. However, be on the lookout for offers from Frontier and American Airlines, as they are both options that can get you from Detroit Metropolitan Wayne County Airport to Seattle for a low price.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

What are the cheapest flights from Detroit Metropolitan Wayne County Airport to Seattle?

While on average a flight from Detroit Metropolitan Wayne County Airport to Seattle is generally $1,186, our data shows the cheapest flight currently is $168. When looking at the most popular route, (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl), you can expect to pay $235 for that flight.

What are the most reliable airlines from Detroit Metropolitan Wayne County Airport to Seattle?

Before booking your flight to Seattle from Detroit Metropolitan Wayne County Airport, check out the most reliable airlines to get you to your destination on time: Korean Air (92%), Aeromexico (87%), LATAM Airlines( 87%).

What are the most popular airlines that fly from Detroit Metropolitan Wayne County Airport to Seattle?

Before booking your flight from Detroit Metropolitan Wayne County Airport to Seattle check out the most popular airlines for this route: American Airlines, Alaska Airlines or Delta.

What is the cheapest day to fly round-trip from Detroit Metropolitan Wayne County Airport to Seattle?

Leaving on a Thursday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 17% on the overall cost on flights from Detroit Metropolitan Wayne County Airport to Seattle.

What is the cheapest month to fly from Detroit Metropolitan Wayne County Airport to Seattle?

The best pricing can be found in the month of October. Prices to Seattle from Detroit Metropolitan Wayne County Airport average $354. You can even find prices in October for less than $354, as users have found deals to Seattle from as low as $168. The month of June appears to be one of the more expensive times to travel to Seattle from Detroit Metropolitan Wayne County Airport. Flying in the targeted month can save you up to 22%.

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 Metropolitan Wayne County to Seattle/Tacoma Intl. There are 15 flights from Detroit Metropolitan Wayne County (DTW) to Seattle/Tacoma Intl (SEA) per day to choose from. Flights to Seattle from Detroit Metropolitan Wayne County 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.

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.

$134+ Flights from Detroit Metropolitan Wayne County Airport to Seattle

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Detroit to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Detroit Metropolitan Wayne County to Seattle/Tacoma Intl are usually found in February or April, booked 69 days in advance, depart on a Friday or Wednesday and return on a Thursday

Cheap flight deals from Detroit to Seattle

Round-trip from	$256 (Delta)
One-way from	$134 (Sun Country Air)
Popular in	July
Cheapest in	February
Average price	$462
Good round-trip deal	$336 or less
Good one-way deal	$257 or less

From Detroit Metropolitan Wayne County to Seattle/Tacoma Intl

Search Deals

One-way flight from Detroit Metropolitan Wayne County to Seattle/Tacoma Intl

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($52 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Price to beat on a round-trip flight from Detroit Metropolitan Wayne County to Seattle/Tacoma Intl.

Search Deals

Price to beat on a one-way flight from Detroit Metropolitan Wayne County to Seattle/Tacoma Intl.

Search Deals

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 July 28, 2025.

Sat 10/43:50 pmDTW - SEA

Nonstop4h 49mDelta

Sat 10/1111:05 pmSEA - DTW

Nonstop4h 20mDelta

Deal found 7/25

$256

Sat 8/237:40 amDTW - SEA

1 stop7h 05mFrontier

Sat 8/3012:40 pmSEA - DTW

1 stop9h 04mFrontier

Deal found 7/26

$257

Sun 11/26:51 pmDTW - SEA

1 stop25h 24mSun Country Air

Sun 11/96:30 pmSEA - DTW

1 stop12h 33mSun Country Air

Deal found 7/27

$260

Sat 8/304:00 pmDTW - SEA

1 stop10h 41mAmerican Airlines

Sat 9/66:05 amSEA - DTW

1 stop9h 42mAmerican Airlines

Deal found 7/26

$263

Tue 8/191:45 pmDTW - SEA

1 stop6h 47mMultiple Airlines

Sat 8/2312:40 pmSEA - DTW

1 stop9h 04mMultiple Airlines

Deal found 7/27

$264

Tue 8/266:30 amDTW - SEA

Nonstop4h 56mAlaska Airlines

Tue 9/29:41 pmSEA - DTW

Nonstop4h 26mAlaska Airlines

Deal found 7/27

$292

Wed 10/112:16 pmDTW - SEA

1 stop13h 04mJetBlue

Sun 10/511:40 pmSEA - DTW

1 stop8h 50mJetBlue

Deal found 7/27

$293

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 July 28, 2025.

Sat 10/43:50 pmDTW - SEA

Nonstop4h 49mDelta

Sat 10/1111:05 pmSEA - DTW

Nonstop4h 20mDelta

Deal found 7/25

$256

Sat 8/237:40 amDTW - SEA

1 stop7h 05mFrontier

Sat 8/3012:40 pmSEA - DTW

1 stop9h 04mFrontier

Deal found 7/26

$257

Sat 8/304:00 pmDTW - SEA

1 stop10h 41mAmerican Airlines

Sat 9/66:05 amSEA - DTW

1 stop9h 42mAmerican Airlines

Deal found 7/26

$263

Tue 8/191:45 pmDTW - SEA

1 stop6h 47mMultiple Airlines

Sat 8/2312:40 pmSEA - DTW

1 stop9h 04mMultiple Airlines

Deal found 7/27

$264

Mon 8/1811:11 amDTW - SEA

1 stop14h 39mSun Country Air

Thu 8/2111:55 pmSEA - DTW

1 stop7h 53mSun Country Air

Deal found 7/27

$282

Tue 8/266:30 amDTW - SEA

Nonstop4h 56mAlaska Airlines

Tue 9/29:41 pmSEA - DTW

Nonstop4h 26mAlaska Airlines

Deal found 7/27

$292

Wed 10/812:16 pmDTW - SEA

1 stop12h 54mJetBlue

Mon 10/1311:40 pmSEA - DTW

1 stop8h 50mJetBlue

Deal found 7/26

$293

Last-minute flights from Detroit to Seattle
Discover last-minute flight deals from Detroit to Seattle. Data last updated July 28, 2025 and is based on user searches.

Sat 8/27:15 amDTW - SEA

1 stop19h 27mMultiple Airlines

Wed 8/65:30 pmSEA - DTW

2 stops16h 23mMultiple Airlines

Deal found 7/26

$269

Sun 8/38:30 amDTW - SEA

1 stop11h 48mFrontier

Sat 8/166:25 amSEA - DTW

1 stop6h 55mFrontier

Deal found 7/25

$268

Mon 8/49:22 pmDTW - SEA

3 stops22h 03mSpirit Airlines

Thu 8/75:30 pmSEA - DTW

2 stops16h 23mSpirit Airlines

Deal found 7/26

$343

Mon 8/1811:11 amDTW - SEA

1 stop14h 39mSun Country Air

Thu 8/2111:55 pmSEA - DTW

1 stop7h 53mSun Country Air

Deal found 7/27

$282

Tue 8/191:45 pmDTW - SEA

1 stop6h 47mMultiple Airlines

Sat 8/2312:40 pmSEA - DTW

1 stop9h 04mMultiple Airlines

Deal found 7/27

$264

Sat 8/237:40 amDTW - SEA

1 stop7h 05mFrontier

Sat 8/3012:40 pmSEA - DTW

1 stop9h 04mFrontier

Deal found 7/26

$257

Tue 8/266:30 amDTW - SEA

Nonstop4h 56mAlaska Airlines

Tue 9/29:41 pmSEA - DTW

Nonstop4h 26mAlaska Airlines

Deal found 7/27

$292

Sat 8/304:00 pmDTW - SEA

1 stop10h 41mAmerican Airlines

Sat 9/66:05 amSEA - DTW

1 stop9h 42mAmerican Airlines

Deal found 7/26

$263

Sat 8/306:50 pmDTW - SEA

Nonstop4h 59mDelta

Sat 9/66:00 amSEA - DTW

1 stop9h 51mDelta

Deal found 7/27

$306

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 July 28, 2025.

Tue 8/191:45 pmDTW - SEA

1 stop6h 47mSun Country Air

Deal found 7/26

$134

Sat 8/167:15 amDTW - SEA

1 stop14h 31mFrontier

Deal found 7/26

$137

Tue 8/264:00 pmDTW - SEA

1 stop10h 41mAmerican Airlines

Deal found 7/27

$140

Mon 8/257:30 pmDTW - SEA

1 stop7h 35mSouthwest

Deal found 7/25

$149

Mon 8/49:22 pmDTW - SEA

3 stops22h 03mSpirit Airlines

Deal found 7/26

$158

Thu 9/256:30 amDTW - SEA

Nonstop4h 56mAlaska Airlines

Deal found 7/26

$159

Thu 10/2312:16 pmDTW - SEA

1 stop12h 54mJetBlue

Deal found 7/26

$162

Mon 8/185:25 pmDTW - SEA

2 stops27h 07mMultiple Airlines

Deal found 7/27

$165

Tue 9/96:30 amDTW - SEA

Nonstop4h 56mHawaiian Airlines

Deal found 7/26

$171

Tue 8/267:00 amDTW - SEA

2 stops9h 28mUnited Airlines

Deal found 7/27

$174

Cheapflights Fare Finder

Use the filters below to find and compare flights from Detroit Metropolitan Wayne County Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 10/4

3:50 pm-5:39 pm

Nonstop4h 49m

Seattle/Tacoma Intl

Sat 10/11

11:05 pm-6:25 am

Nonstop4h 20m

$256

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 8/23

7:40 am-11:45 am

1 stop7h 05m

Seattle/Tacoma Intl

Sat 8/30

12:40 pm-12:44 am

1 stop9h 04m

$257

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Sat 8/30

4:00 pm-11:41 pm

1 stop10h 41m

Seattle/Tacoma Intl

Sat 9/6

6:05 am-6:47 pm

1 stop9h 42m

$263

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 8/19

1:45 pm-5:32 pm

1 stop6h 47m

Seattle/Tacoma Intl

Sat 8/23

12:40 pm-12:44 am

1 stop9h 04m

$264

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Mon 8/18

11:11 am-10:50 pm

1 stop14h 39m

Seattle/Tacoma Intl

Thu 8/21

11:55 pm-10:48 am

1 stop7h 53m

$282

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 8/26

6:30 am-8:26 am

Nonstop4h 56m

Seattle/Tacoma Intl

Tue 9/2

9:41 pm-5:07 am

Nonstop4h 26m

$292

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Wed 10/1

12:16 pm-10:20 pm

1 stop13h 04m

Seattle/Tacoma Intl

Sun 10/5

11:40 pm-11:30 am

1 stop8h 50m

$293

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 8/19

1:45 pm-5:32 pm

1 stop6h 47m

$134

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 8/12

7:15 am-11:42 pm

1 stop19h 27m

$137

DetroitSeattle

DTW - SEA

DTWSEA

Detroit Metropolitan Wayne County

Tue 8/26

4:00 pm-11:41 pm

1 stop10h 41m

$140

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 17 results

The best insider tips for Detroit Metropolitan Wayne County Airport to Seattle flights

Cheapflights partnered with top experts to bring you the best recommendations for your Detroit Metropolitan Wayne County Airport to Seattle trip

Airports

DTW

At DTW, security lines are typically short, with waits under 15 minutes even at Evans Terminal.

SEA

Use the Link light rail from SEA to downtown Seattle for a cost-effective, 40-minute journey.

Our travel experts

Brandon Schultz

Expert on DTW and SEA

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 Metropolitan Wayne County Airport to Seattle

How far ahead should I book a flight from Detroit Metropolitan Wayne County Airport to Seattle?

Booking 24 days in advance of your planned departure date is, on average, the best time to get cheap flights from Detroit Metropolitan Wayne County Airport to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Detroit Metropolitan Wayne County Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Seattle (average of $238). Flying from Detroit Metropolitan Wayne County Airport to Seattle in June is currently the most expensive (average of $389). 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 DTW to SEA?

A simple way to save on the total cost of your ticket is to fly from Detroit Metropolitan Wayne County Airport to Seattle in the afternoon. If you’re flexible enough to do this you can expect to save up to 35% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Detroit Metropolitan Wayne County Airport to Seattle?

Travelers seeking maximum savings on their Detroit Metropolitan Wayne County Airport 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 Metropolitan Wayne County Airport to Seattle

The most flights from DTW to SEA are scheduled on a Monday (21 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (10 on average).

What’s the top layover airport for flights from Detroit Metropolitan Wayne County Airport to Seattle?

Las Vegas (LAS) – chosen by Cheapflights users on 50% of 1-stop itineraries from Detroit Metropolitan Wayne County Airport to Seattle on Cheapflights.

What’s the cheapest layover airport for flights from Detroit Metropolitan Wayne County Airport to Seattle?

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $180.

What’s the fastest layover option from Detroit Metropolitan Wayne County Airport to Seattle?

Flights via Las Vegas (LAS) have the shortest average one-way travel time for 1-stop routes: 6h 19m.

Which airport typically offers the quickest layover for flights from Detroit Metropolitan Wayne County Airport to Seattle?

Flights via Las Vegas (LAS) offer the fastest connection on this route, with an average layover time of 2h 46m.

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Detroit Metropolitan Wayne County Airport to Seattle, such as Alaska Airlines, Southwest, and Delta. 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

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Southwest

8.0

Very good

4,237 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Delta

8.0

Very good

7,971 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Hawaiian Airlines

7.8

Good

2,604 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

United Airlines

7.4

Good

8,893 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Related info for your journey

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 Metropolitan Wayne County to Seattle/Tacoma Intl. There are 15 flights from Detroit Metropolitan Wayne County (DTW) to Seattle/Tacoma Intl (SEA) per day to choose from. Flights to Seattle from Detroit Metropolitan Wayne County 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 Metropolitan Wayne County Airport to Seattle round-trip?
Our cheapest airline available from Detroit Metropolitan Wayne County Airport to Seattle is Delta. Our recent data shows that you can find tickets from as low as $256 on this airline. Additional options worth looking into are Frontier and American Airlines, starting at $257 and $263 round-trip. These flights start at 32% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Detroit Metropolitan Wayne County Airport to Seattle one-way?
The cheapest airline one-way is Sun Country Air, with whom users have recently found tickets for as low as $134. However, be on the lookout for offers from Frontier and American Airlines, as they are both options that can get you from Detroit Metropolitan Wayne County Airport to Seattle for a low price.
What are the most reliable airlines from Detroit Metropolitan Wayne County Airport to Seattle?
Before booking your flight to Seattle from Detroit Metropolitan Wayne County Airport, check out the most reliable airlines to get you to your destination on time: Korean Air (92%), Aeromexico (87%), LATAM Airlines( 87%).
What are the cheapest flights from Detroit Metropolitan Wayne County Airport to Seattle?
While on average a flight from Detroit Metropolitan Wayne County Airport to Seattle is generally $1,186, our data shows the cheapest flight currently is $168. When looking at the most popular route, (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl), you can expect to pay $235 for that flight.
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 Metropolitan Wayne County Airport to Seattle?
Currently, January is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Seattle (average of $238). Flying from Detroit Metropolitan Wayne County Airport to Seattle in June is currently the most expensive (average of $389). 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

SeaTac

Tukwila

Tacoma

Ocean Shores

Lakewood

Lynnwood

Lacey

Leavenworth

Renton

Olympia

Puyallup

Kent

Cle Elum

Chehalis

Kirkland

Issaquah

Aberdeen

Shoreline

Federal Way

Shelton

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Detroit to Seattle

Detroit to Portland flights

Detroit to Spokane flights

Detroit to Pasco flights

Detroit to Walla Walla flights

Detroit to Wenatchee flights

Complete your trip

Seattle car rentals

Seattle/Tacoma Intl Airport car rentals

Kenmore Air Harbor Airport car rentals

Spokane car rentals

Yakima car rentals

Pasco car rentals

Bellingham car rentals

Walla Walla car rentals

Wenatchee car rentals

Downtown car rentals

Capitol Hill car rentals

West Seattle car rentals

Other flights to Seattle

Top 8 airlines flying from Detroit to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$128	Average$202	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$130	Average$274	FlexibilityNo cancel fee	On-time65%
Sun Country Air	Cheapest$133	Average$322	FlexibilityNo cancel fee	On-time83%
American Airlines	Cheapest$158	Average$436	FlexibilityNo cancel fee	On-time71%
Hawaiian Airlines	Cheapest$178	Average$367	FlexibilityNo cancel fee	On-time85%
Alaska Airlines	Cheapest$256	Average$399	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$257	Average$404	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$271	Average$394	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$134+ Cheap flights from Detroit Metropolitan Wayne County Airport to Seattle (DTW - 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Detroit to Seattle with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Detroit Metropolitan Wayne County to Seattle/Tacoma Intl are usually found in February or April, booked 69 days in advance, depart on a Friday or Wednesday and return on a Thursday

Cheap flight deals from Detroit to Seattle

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Detroit to Seattle

Cheapest flights from Detroit to SeattleExplore 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 July 28, 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 July 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Detroit Metropolitan Wayne County Airport to Seattle that are best for you.

The best insider tips for Detroit Metropolitan Wayne County Airport to Seattle flights

Cheapflights partnered with top experts to bring you the best recommendations for your Detroit Metropolitan Wayne County Airport to Seattle trip

Airports

DTW

SEA

Our travel experts

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.

Cheapflights Insights

Everything you need to know about your flight from Detroit Metropolitan Wayne County Airport to Seattle

How far ahead should I book a flight from Detroit Metropolitan Wayne County Airport 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 July 25, 2025.

What is the cheapest month to book a flight from Detroit Metropolitan Wayne County Airport to Seattle?

What is the cheapest time of day to fly from DTW 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 July 28, 2025.

What is the cheapest day to fly from Detroit Metropolitan Wayne County Airport to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Detroit to Seattle. Price data was last updated on July 27, 2025.

Weekly flight availability from Detroit Metropolitan Wayne County Airport 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 July 28, 2025.

What’s the top layover airport for flights from Detroit Metropolitan Wayne County Airport to Seattle?

Share of 1-stop round-trip flights from Detroit Metropolitan Wayne County Airport to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.

What’s the cheapest layover airport for flights from Detroit Metropolitan Wayne County Airport to Seattle?

Average round-trip fare for 1-stop flights from Detroit Metropolitan Wayne County Airport to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.

What’s the fastest layover option from Detroit Metropolitan Wayne County Airport to Seattle?

Shortest average travel time for 1-stop one-way flights from Detroit Metropolitan Wayne County Airport to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Which airport typically offers the quickest layover for flights from Detroit Metropolitan Wayne County Airport to Seattle?

Average layover duration for 1-stop one-way flights from Detroit Metropolitan Wayne County Airport to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Detroit Metropolitan Wayne County Airport to Seattle, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the cheapest airlines flying from Detroit Metropolitan Wayne County Airport to Seattle round-trip?

What are the cheapest airlines to fly from Detroit Metropolitan Wayne County Airport to Seattle one-way?

What are the most reliable airlines from Detroit Metropolitan Wayne County Airport to Seattle?

What are the cheapest flights from Detroit Metropolitan Wayne County Airport to Seattle?

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

How can I find direct flights from Detroit to Seattle?

Can I find deals for business class flights from Detroit to Seattle?

What is the cheapest month to book a flight from Detroit Metropolitan Wayne County Airport to Seattle?

Traveling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Detroit to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from Detroit to Seattle

100% Free

Book with Flexibility

Travel Smart

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 July 28, 2025.