How long is the flight from Detroit to Seattle?

A quick flight from Detroit to Seattle can take about 4h 55m. Southwest provides one of the quickest options available for as low as C$ 694. Detroit and Seattle are separated by a distance of 3090 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

Frontier, at C$ 220, was found to be the cheapest airline from Detroit to Seattle.Alternate airlines to your destination round-trip include Alaska Airlines and Delta. These flights start at 60% lower than the current average price 3 months from now.

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.

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).

What are the cheapest flights from Detroit to Seattle?

Looking at all options, your cheapest flight can be booked for C$ 291. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for C$ 479 on average, our data indicates C$ 411 when flying from Detroit to Seattle.

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 KLM (95%), American Airlines (81%) or Alaska Airlines (81%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Detroit to Seattle?

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

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 01m for a nonstop flight. There are 9 flights from All airports to Seattle per day from 3 airlines.

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.

C$ 207+ Cheap Flights from Detroit to Seattle

Cheapflights Tip: The best prices from Detroit All airports to Seattle/Tacoma Intl are usually found in January or December, booked 21 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Detroit to Seattle

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 5 October 2026.

Mon 2/117:45 p.m. -

1 stop7h 55m

Mon 9/115:30 a.m. -

1 stop8h 45m

Deal found 5/10C$ 462

Tue 3/112:15 p.m. -

2 stops11h 30m

Tue 10/116:10 a.m. -

1 stop8h 10m

Deal found 4/10C$ 471

Wed 28/1011:05 a.m. -

2 stops11h 00m

Wed 4/115:40 a.m. -

2 stops10h 15m

Deal found 5/10C$ 478

Sat 7/117:00 a.m. -

1 stop11h 12m

Tue 10/117:48 p.m. -

2 stops30h 07m

Deal found 2/10C$ 479

Sun 8/117:15 a.m. -

1 stop29h 30m

Sat 21/114:37 p.m. -

1 stop29h 32m

Deal found 3/10C$ 493

Thu 5/118:15 a.m. -

1 stop9h 24m

Thu 12/1110:56 p.m. -

1 stop7h 30m

Deal found 30/9C$ 566

Thu 3/124:15 p.m. -

1 stop9h 35m

Tue 22/128:30 p.m. -

2 stops10h 25m

Deal found 5/10C$ 568

Mon 2/1110:28 p.m. -

2 stops43h 44m

Mon 9/119:13 p.m. -

1 stop28h 42m

Deal found 5/10C$ 572

Wed 4/112:09 p.m. -

2 stops10h 10m

Wed 11/115:05 a.m. -

1 stop6h 22m

Deal found 1/10C$ 573

Thu 22/105:55 a.m. -

2 stops10h 35m

Wed 28/105:35 a.m. -

2 stops10h 15m

Deal found 1/10C$ 580

Find flight deals from Detroit to Seattle

Round-trip from	C$ 462
One-way from	C$ 207
Popular in	October
Cheapest in	January
Average price	C$ 766
Good round-trip deal	C$ 461 or less
Good one-way deal	C$ 338 or less

Southwest
2/11-9/11
2 total stops
16h 40m total
Detroit to Seattle

Search Deals

Frontier
26/11-31/12
1 total stop
11h 07m total
Detroit to Seattle

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (C$ 176 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 28 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a round-trip flight from Detroit (DTT) to Seattle/Tacoma Intl.

Search Deals

Price to beat on a one-way flight from Detroit (DTT) to Seattle/Tacoma Intl.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Fri 25/12

7:35 p.m.-11:30 p.m.

1 stop6h 55m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 329

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Tue 30/3

6:15 p.m.-10:20 p.m.

1 stop7h 05m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 362

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Mon 30/11

1:53 p.m.-11:28 a.m.

1 stop24h 35m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 382

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Mon 9/11

7:50 p.m.-9:58 p.m.

Nonstop5h 08m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 391

Quickest round-trip

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Thu 29/10

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

Nonstop4h 55m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 391

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Thu 1/4

4:46 p.m.-6:47 p.m.

Nonstop5h 01m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 391

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Wed 2/12

6:18 p.m.-8:31 p.m.

Nonstop5h 13m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 391

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Fri 23/10

2:02 p.m.-9:59 p.m.

2 stops10h 57m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 396

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Mon 30/11

8:00 p.m.-1:20 a.m.

1 stop8h 20m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 405

DetroitSeattle

DTW Detroit Metropolitan Wayne County - SEA Seattle/Tacoma Intl

DTWSEA

Detroit Metropolitan Wayne County

Mon 2/11

7:45 p.m.-12:40 a.m.

1 stop7h 55m

Seattle/Tacoma Intl

Mon 9/11

5:30 a.m.-5:15 p.m.

1 stop8h 45m

C$ 462

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 20 resultsSorted by cheapest first

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.

DTT-SEA

DTW-SEA

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

DTT-SEA

DTW-SEA

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$ 381). Flying from Detroit to Seattle in July is currently the most expensive (average of C$ 707). 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?

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 in the evening, which can drop the price by up to 41% versus a flight at noon.

Weekly flight availability from Detroit to Seattle

The most flights from DTT to SEA are scheduled on a Sunday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

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

Airfare is below average for this route at the moment.

Detroit to Seattle flights typically cost between C$ 538 and C$ 908 in November.
The cheapest round-trip price found within the last 5 days was C$ 462 on Southwest (2 Nov-9 Nov).

How far ahead should I book a flight from Detroit to Seattle?

To ensure you get the cheapest price possible for a flight from Detroit to Seattle, you should look to book at least 69 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.

Reviews of airlines servicing Seattle

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

Alaska Airlines

7.9

Good

13,021 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.

Alaska Airlines

7.9

Good

13,021 reviews

Alaska Airlines

7.9

Good

13,021 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.

Related info for your journey

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 01m for a nonstop flight. There are 9 flights from All airports to Seattle per day from 3 airlines.
How long is the flight from Detroit to Seattle?
A quick flight from Detroit to Seattle can take about 4h 55m. Southwest provides one of the quickest options available for as low as C$ 694. Detroit and Seattle are separated by a distance of 3090 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Detroit to Seattle round-trip?
Frontier, at C$ 220, was found to be the cheapest airline from Detroit to Seattle.Alternate airlines to your destination round-trip include Alaska Airlines and Delta. These flights start at 60% 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 KLM (95%), American Airlines (81%) or Alaska Airlines (81%) 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$ 291. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for C$ 479 on average, our data indicates C$ 411 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$ 381). Flying from Detroit to Seattle in July is currently the most expensive (average of C$ 707). 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

Kent

Mukilteo

Renton

Cashmere

Lynnwood

Ellensburg

Leavenworth

Tukwila

Tacoma

Marysville

Federal Way

Kirkland

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Alternative routes

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Direct flights to Washington

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Detroit to Portland flights

O'Hare Intl to Seattle flights

Top 3 airlines flying from Detroit to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Frontier	CheapestC$ 220	AverageC$ 462	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
Alaska Airlines	CheapestC$ 273	AverageC$ 637	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
Delta	CheapestC$ 297	AverageC$ 495	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

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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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Cheap flights from Detroit to Seattle from C$ 207

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 5 October 2026.

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 5 October 2026.

Best flights from Detroit to SeattleDiscover 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 5 October 2026.

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 5 October 2026.

Direct flights from Detroit to SeattleExplore direct flight options from Detroit to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 5 October 2026.

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 5 October 2026.

Last-minute flights from Detroit to SeattleDiscover last-minute flight deals from Detroit to Seattle. Data last updated 5 October 2026 and is based on user searches.

Discover last-minute flight deals from Detroit to Seattle. Data last updated 5 October 2026 and is based on user searches.

One-way flights from Detroit to SeattleSearch for one-way flight options from Detroit to Seattle. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.

Search for one-way flight options from Detroit to Seattle. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.

Find flight deals from Detroit to Seattle

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One-way from

Popular in

Cheapest in

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

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

What is the cheapest month to book a flight from Detroit to Seattle?

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 5 October 2026.

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 in the evening, which can drop the price by up to 41% versus a flight at noon.

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 5 October 2026.

The most flights from DTT to SEA are scheduled on a Sunday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

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

Airfare is below average for this route at the moment.

Detroit to Seattle flights typically cost between C$ 538 and C$ 908 in November.The cheapest round-trip price found within the last 5 days was C$ 462 on Southwest (2 Nov-9 Nov).

How far ahead should I book a flight from Detroit to Seattle?

To ensure you get the cheapest price possible for a flight from Detroit to Seattle, you should look to book at least 69 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.

Reviews of airlines servicing Seattle

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

Related info for your journey

What airports do I use to fly from Detroit to Seattle?

How long is the flight from Detroit to Seattle?

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

What are the most reliable airlines from Detroit to Seattle?

What are the cheapest flights from Detroit 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 to Seattle?

Travelling to a place near Seattle?

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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.

Complete your trip

Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Washington

Book a non-stop flight to one of these other cities located in Washington.

Search flights from Detroit to Seattle by cabin class

Find flights from Detroit to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Detroit and Seattle flights

Browse other Detroit and Seattle flight options. Last updated on 5 October 2026.

Other flights from Detroit

Browse through other flights departing from Detroit. Flights are based on user searches made on Cheapflights and were last updated on 5 October 2026.

Popular flight searches

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Other flights to Seattle

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Top 3 airlines flying from Detroit to Seattle

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How does Cheapflights help users find flights from Detroit to Seattle?

Why should you use Cheapflights to find cheap flight tickets from Detroit to Seattle?

Can Cheapflights find flights from Detroit to Seattle with no change fees?

Can Cheapflights notify me if prices for flights from Detroit to Seattle become cheaper?

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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 5 October 2026.

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 5 October 2026.

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 5 October 2026.

Last-minute flights from Detroit to Seattle
Discover last-minute flight deals from Detroit to Seattle. Data last updated 5 October 2026 and is based on user searches.

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 5 October 2026.

Detroit to Seattle flights typically cost between C$ 538 and C$ 908 in November.
The cheapest round-trip price found within the last 5 days was C$ 462 on Southwest (2 Nov-9 Nov).