Cheap flights from Detroit to Seattle from $103
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to Seattle departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Delta flights from Detroit to Seattle
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How to get the cheapest flight ticket from Detroit to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Seattle?
In general, October is the cheapest month to fly from Detroit to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $296. If you don’t want to visit Seattle in October, then you should wait until January to fly from Detroit, when ticket prices are also cheap, with an average price of $297.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Detroit is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $495. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Detroit because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $575.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Detroit in the evening is the least expensive time of day to depart. momondo users have found prices as low as $371 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $554. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Detroit to Seattle/Tacoma Intl flight route?
Fly from Detroit Metropolitan Wayne County to Seattle/Tacoma Intl for the best Detroit - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Detroit when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $380 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Detroit for as low as $346 on momondo.
What cabin class options are available on Detroit to Seattle/Tacoma Intl flights?
There are 4 cabin classes available to choose from on Detroit to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Detroit to Seattle flights?
No. A direct flight is the cheapest option for a flight between Detroit to Seattle.
How have Detroit to Seattle flight prices changed over time?
As of June 2025, prices for Detroit to Seattle flights are approximately 12% more expensive when compared to flights at the same time last year.
What is the cheapest airline that flies from Detroit to Seattle/Tacoma Intl?
American Airlines, Spirit Airlines, and Sun Country Air are the most popular carriers operating from Detroit to Seattle/Tacoma Intl
What airlines fly to Seattle?
Delta, Alaska Airlines and American Airlines are the top three most popular airlines that fly to Seattle from Detroit according to our data. Delta is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 8 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
How many flights depart from Detroit to Seattle on average per day?
As of June 2025, there are 13 flights per day flying from Detroit to Seattle. The most common time of day flights depart is 7:00AM, with 40% of flights taking off at noon.
How many flights depart from Detroit to Seattle on average per week?
92 flights are operational weekly from Detroit to Seattle as of June 2025. The most popular departure day for this route is Thu, with 23% of flights per week taking off on this day.
When to book flights from Detroit to Seattle
Cheap Detroit to Seattle (DTT to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Detroit to Seattle
How far is Detroit to Seattle/Tacoma Intl by plane?
A flight from Detroit to Seattle/Tacoma Intl will travel around 1931.7 mi. Typically, this will take 4h 56m by plane in normal conditions.
When did momondo last update prices for flights from Detroit to Seattle/Tacoma Intl Airport?
Prices for flights from Detroit to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from Detroit to Seattle/Tacoma Intl Airport?
As of June 2025, there are 8 operators available to choose from for flights from Detroit to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Detroit to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Detroit to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Detroit to Seattle?
momondo data reveals that the most frequently booked plane model on the route from Detroit to Seattle is Boeing 737-900 Passenger/BBJ3 (winglets), representing 20.85% of all bookings. The subsequent popular models are Boeing 737 at 19.06%, Boeing 737-900 at 16.67%, and Airbus A321-100/200 at 15.76%.
What is the most popular airline from Detroit to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Detroit to Seattle is Delta (53% of total bookings). The next most popular airlines are Alaska Airlines (29%), American Airlines (5%), and Frontier (4%).
Best airlines flying from Detroit to Seattle
Compare and see reviews for airlines that fly from Detroit to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $123 | Free Cancellation | Rating 6.9 345 reviews | |||
| PriceFrom $128 | Free Cancellation | Rating 5.9 3,295 reviews | |||
| PriceFrom $145 | Free Cancellation | Rating 6.3 8,052 reviews | |||
| PriceFrom $178 | Free Cancellation | Rating 7.8 2,494 reviews | |||
| PriceFrom $200 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $257 | Free Cancellation | Rating 8.0 7,950 reviews |
Alaska Airlines Flights From Detroit to Seattle
Alaska Airlines flies from Detroit to Seattle around 3 times per week, with 10,000 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Detroit to Seattle in the last 72 hours was $256 (round-trip), much lower than the average airfare cost of $405 for Alaska Airlines flights on this route.
Delta Flights From Detroit to Seattle
Delta (8.0/10 from 7,950 reviews) operates around 35 flights from Detroit to Seattle in any given week. The average Delta airfare for this route is around $405, with deals from around $257 rare but found on momondo. Referenced prices are for round-trip Detroit to Seattle flight searches in the last 72 hours.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Detroit to Seattle?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Detroit.
Can I find flights from Detroit to Seattle with flexible booking policies on momondo?
Flights from Detroit to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Detroit to Seattle?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Detroit to Seattle.
I’m not ready to book a flight from Detroit to Seattle right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Detroit and alert you when they change.