Q: 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$ 437 and C$ 663 in September. The cheapest round-trip price found within the last 3 days was C$ 365 on Frontier (3 Sep-6 Sep).

Question 1

What’s the top layover airport for flights from Detroit to Seattle?

Accepted Answer

Los Angeles (LAX) – chosen by Cheapflights users on 32% of one-stop itineraries from Detroit to Seattle on Cheapflights.

Question 2

What’s the cheapest layover airport for flights from Detroit to Seattle?

Accepted Answer

Los Angeles (LAX) is the most affordable 1-stop option, with an average round-trip price of C$ 281.

Question 3

What’s the fastest layover option from Detroit to Seattle?

Accepted Answer

Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 6h 50m.

Question 4

Which airport typically offers the quickest layover for flights from Detroit to Seattle?

Accepted Answer

Flights via Las Vegas (LAS) offer the fastest connection on this route, with an average layover time of 1h 27m.

Question 5

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

Accepted Answer

Airfare is below average for this route at the moment.Detroit to Seattle flights typically cost between C$ 437 and C$ 663 in September.
The cheapest round-trip price found within the last 3 days was C$ 365 on Frontier (3 Sep-6 Sep).

Question 6

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

Accepted Answer

Frontier, at C$ 141, was found to be the cheapest airline from Detroit to Seattle.Alternate airlines to your destination round-trip include Delta and Spirit Airlines. These flights start at 71% lower than the current average price 3 months from now.

Question 7

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

Accepted Answer

One-way options have recently been found by users for as low as C$ 189 on Sun Country Air. Other airlines that offer cheap prices include Frontier from C$ 192 and American Airlines from C$ 193 one-way.

Question 8

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

Accepted Answer

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.

Question 9

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Detroit to Seattle (average of C$ 262). 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.

Question 10

What is the cheapest day to fly from Detroit to Seattle?

Accepted Answer

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.

Question 11

Weekly flight availability from Detroit to Seattle

Accepted Answer

The most flights from DTT to SEA are scheduled on a Thursday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Question 12

E

Accepted Answer

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.

Question 13

E

Accepted Answer

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).

Question 14

What are the cheapest flights from Detroit to Seattle?

Accepted Answer

Looking at all options, your cheapest flight can be booked for C$ 182. While the most popular route (Detroit Metropolitan Wayne County - Seattle/Tacoma Intl) can be booked for C$ 390 on average our data indicates C$ 336 when flying from Detroit to Seattle.

Question 15

What are the most reliable airlines from Detroit to Seattle?

Accepted Answer

No one likes to see their flight delayed. When booking a flight from Detroit to Seattle consider choosing Korean Air (93%), Aeromexico (84%) or LATAM Airlines (84%) as they are the most reliable in getting you off to your destination on time.

Question 16

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

Accepted Answer

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

Question 17

What is the cheapest day to fly round-trip from Detroit to Seattle?

Accepted Answer

Sunday flights are found to be more expensive to fly from Detroit to Seattle. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle.

Question 18

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

Accepted Answer

Users have found that booking a flight from Detroit to Seattle at least 16 days early can save you up to 76% on average compared to booking a flight this week. If booking 16 days before your flight isn’t an option for you, users have found flights from Detroit to Seattle for as little as C$ 529 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 707 for flights departing within the next 3 days.

Question 19

What is the cheapest month to fly from Detroit to Seattle?

Accepted Answer

Flights from Detroit to Seattle lean towards being more expensive in June. Prices are generally better when you fly from Detroit to Seattle in October, with the cheapest ticket starting at C$ 232.

Question 20

What is the cheapest time of day to fly from DTT to SEA?

Accepted Answer

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.

Question 21

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

Accepted Answer

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 13 flights from All airports to Seattle per day from 5 airlines.

Question 22

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

Accepted Answer

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

Question 23

How can I find direct flights from Detroit to Seattle?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Detroit to Seattle.

Question 24

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

Accepted Answer

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.

Question 25

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

Accepted Answer

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.

Question 26

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

Accepted Answer

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.

Question 27

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

Accepted Answer

Yes! Cheapflights helps users easily find flights from Detroit to Seattle with no change fees.

Question 28

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

Accepted Answer

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.

Round-trip from	C$ 365
One-way from	C$ 189
Popular in	June
Cheapest in	October
Average price	C$ 540
Good round-trip deal	C$ 369 or less
Good one-way deal	C$ 195 or less

Airline	Cheapest	Average	Flexibility	On-time
Frontier	CheapestC$ 141	AverageC$ 281	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
Delta	CheapestC$ 177	AverageC$ 439	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Spirit Airlines	CheapestC$ 253	AverageC$ 307	FlexibilityNo cancel fee	On-time65%	Search Spirit Airlines flights
Alaska Airlines	CheapestC$ 354	AverageC$ 539	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
Hawaiian Airlines	CheapestC$ 369	AverageC$ 533	FlexibilityNo cancel fee	On-time85%	Search Hawaiian Airlines flights

Cheap flights from Detroit to Seattle from C$ 189

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.

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

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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 14 August 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 14 August 2025.

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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

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 8 August 2025.

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 14 August 2025.

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 10 August 2025.

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 14 August 2025.

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

What’s the top layover airport for flights from Detroit to Seattle?

Share of one-stop round-trip flights from Detroit 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 to Seattle?

Average round-trip fare for 1-stop flights from Detroit 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 to Seattle?

Shortest average travel time for 1-stop one-way flights from Detroit 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 to Seattle?

Average layover duration for 1-stop one-way flights from Detroit 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 to Seattle, such as Alaska Airlines,Delta, andSpirit Airlines. 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 to Seattle round-trip?

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

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?

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Top 5 airlines flying from Detroit to Seattle

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

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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 14 August 2025.