Cheap flights from Seattle to Detroit from $133

The cheapest month to fly to Detroit from Seattle is in December. Flight prices, which tend to average around $99, are often lower during this time because this is during the off-season. If you’re not able to fly to Detroit in December, then November is your next best option. Flight prices from Seattle to Detroit during November average around $109.

On average, the least expensive day to fly to Detroit from Seattle is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $439. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Detroit for around $546.

In the afternoon is the cheapest time of day to fly from Seattle to Detroit when you can find flight prices for as low as $427. Flying to Detroit in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $493 on average. Flights to Detroit from Seattle in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Seattle/Tacoma Intl to Detroit Metropolitan Wayne County for the best Seattle/Tacoma Intl - Detroit flight prices

You are more likely to see cheaper flights to Detroit from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Detroit for around $413 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Detroit from Seattle for as low as $323 on momondo.

There are 4 cabin classes available to choose from on Seattle to Detroit flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 22% on your flight if you consider stops on a Seattle to Detroit flight.

As of June 2026, prices for Seattle to Detroit flights are approximately 41% more expensive when compared to flights at the same time last year.

Southwest and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Detroit

Delta, Alaska Airlines and Frontier are the top three most popular airlines that fly to Detroit from Seattle according to our data. Delta is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Detroit. Keep in mind that there are 6 different airlines that fly to Detroit on a routine basis, so you have a few additional options to choose from.

Chicago (ORD) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

Flights via Chicago (ORD) offer the lowest average round-trip price of $312.

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 6h 33m.

Chicago (ORD) has the shortest average layover time for this route: 0h 47m.

The number of flights available between Seattle and Detroit is 16 per day as of June 2026. The most frequent departure time is 9:00AM, with 40% of daily flights leaving at noon.

As of June 2026, there are 116 flights per week flying from Seattle to Detroit. The most common day of the week flights depart is Wed, with 16% of flights taking off on this day.