Cheap flights from Detroit to Seattle from $178

In general, April 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 $111. If you don’t want to visit Seattle in April, then you should wait until March to fly from Detroit, when ticket prices are also cheap, with an average price of $112.

On average, the least expensive day to fly to Seattle from Detroit is on a Friday. momondo users have found tickets for Friday departures for as low as $469. 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 $587.

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 $392 when looking at flights departing in the evening. Flights to Seattle are more costly at noon, with an average ticket price of $668. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Seattle from Detroit when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $385 when searching 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 $377 on momondo.

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

No. A direct flight is the cheapest option for a flight between Detroit to Seattle.

As of July 2026, prices for Detroit to Seattle flights are approximately 30% cheaper when compared to flights at the same time last year.

United Airlines, Delta, and Alaska Airlines are the most popular carriers operating from Detroit to Seattle/Tacoma Intl

Delta, Alaska Airlines and Frontier 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 61% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 7 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Chicago (ORD) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $280.

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 7h 28m.

Chicago (ORD) has the shortest average layover time for this route: 1h 43m.

As of July 2026, there are 12 flights per day flying from Detroit to Seattle. The most common time of day flights depart is 7:00AM, with 53% of flights taking off at noon.

89 flights are operational weekly from Detroit to Seattle as of July 2026. The most popular departure day for this route is Wed, with 17% of flights per week taking off on this day.