Cheap flights from St. Louis to Detroit from $73

The cheapest month to fly to Detroit Metropolitan Wayne County Airport from St. Louis is in October. Flight prices, which tend to average around $287, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Detroit Metropolitan Wayne County Airport from St. Louis during May instead. Flights to Detroit Metropolitan Wayne County Airport in May, while not as cheap as those in October, still average around $309.

The cheapest day to depart from St. Louis to Detroit Metropolitan Wayne County Airport is on a Friday when prices can be found for as low as $481. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Detroit Metropolitan Wayne County Airport on Sunday is $702.

Flying to Detroit Metropolitan Wayne County Airport from St. Louis in the evening is the least expensive time of day to depart. momondo users have found prices as low as $307 when looking at flights departing in the evening. Flights to Detroit Metropolitan Wayne County Airport are more costly at noon, with an average ticket price of $912. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Lambert-St Louis to Detroit Metropolitan Wayne County for the best Lambert-St Louis - Detroit Metropolitan Wayne County flight prices

You are more likely to see cheaper flights to Detroit Metropolitan Wayne County Airport from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Detroit Metropolitan Wayne County Airport for around $366 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Detroit Metropolitan Wayne County Airport from St. Louis for as low as $269 on momondo.

There are 4 cabin classes available to choose from on St. Louis to Detroit Metropolitan Wayne County Airport 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 St. Louis to Detroit Metropolitan Wayne County Airport.

As of September 2026, prices for St. Louis to Detroit Metropolitan Wayne County Airport flights are approximately 43% cheaper when compared to flights at the same time last year.

Southwest and Delta are the most popular carriers operating from Lambert-St Louis to Detroit Metropolitan Wayne County

Delta, Southwest and Frontier are the top three most popular airlines that fly to Detroit Metropolitan Wayne County Airport from St. Louis according to our data. Delta is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Detroit Metropolitan Wayne County Airport. Keep in mind that there are 3 different airlines that fly to Detroit Metropolitan Wayne County Airport on a routine basis, so you have a few additional options to choose from.

As of September 2026, there are 7 flights per day flying from St. Louis to Detroit Metropolitan Wayne County Airport. The most common time of day flights depart is 10:00AM, with 61% of flights taking off at noon.

55 flights are operational weekly from St. Louis to Detroit Metropolitan Wayne County Airport as of September 2026. The most popular departure day for this route is Mon, with 24% of flights per week taking off on this day.