Cheap flights from Michigan to Seattle from $120

In general, January is the cheapest month to fly from Michigan to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $325. If you don’t want to visit Seattle in January, then you should wait until February to fly from Michigan, when ticket prices are also cheap, with an average price of $340.

On average, the least expensive day to fly to Seattle from Michigan is on a Friday. momondo users have found tickets for Friday departures for as low as $475. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Michigan because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $598.

Flying to Seattle from Michigan in the evening is the least expensive time of day to depart. momondo users have found prices as low as $398 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 Michigan - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Michigan when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $397 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Michigan for as low as $392 on momondo.

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

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

Delta, Alaska Airlines and American Airlines are the top three most popular airlines that fly to Seattle from Michigan according to our data. Delta is the first choice among our users, with 44% 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.

The number of flights available between Michigan and Seattle is 53 per day as of August 2026. The most frequent departure time is 4:00PM, with 44% of daily flights leaving at noon.

371 flights are operational weekly from Michigan to Seattle as of August 2026. The most popular departure day for this route is Tue, with 22% of flights per week taking off on this day.