Cheap flights from St. Louis to Detroit from $30
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Detroit departing on 7/21. 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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Spirit Airlines flights from St. Louis to Detroit Metropolitan Wayne County Airport
Our best Spirit Airlines deals on St. Louis to Detroit Metropolitan Wayne County Airport flight tickets
United Airlines flights from St. Louis to Detroit Metropolitan Wayne County Airport
Our best United Airlines deals on St. Louis to Detroit Metropolitan Wayne County Airport flight tickets
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How to get the cheapest flight ticket from St. Louis to Detroit Metropolitan Wayne County Airport
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 Detroit Metropolitan Wayne County Airport?
The cheapest month to fly to Detroit Metropolitan Wayne County Airport from St. Louis is in June. Flight prices, which tend to average around $218, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of June, then book flights to Detroit Metropolitan Wayne County Airport from St. Louis during August instead. Flights to Detroit Metropolitan Wayne County Airport in August, while not as cheap as those in June, still average around $283.
What is the cheapest day to depart on your flight to Detroit Metropolitan Wayne County Airport?
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 $510. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Detroit Metropolitan Wayne County Airport on Monday is $876.
What is the cheapest time of day to depart on your flight to Detroit Metropolitan Wayne County Airport?
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 $299 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 $1,030. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Lambert-St Louis to Detroit Metropolitan Wayne County flight route?
Fly from Lambert-St Louis to Detroit Metropolitan Wayne County for the best Lambert-St Louis - Detroit Metropolitan Wayne County flight prices
How far in advance should I book a flight to Detroit Metropolitan Wayne County Airport?
You are more likely to see cheaper flights to Detroit Metropolitan Wayne County Airport from St. Louis when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Detroit Metropolitan Wayne County Airport for around $313 when searching 24 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 $140 on momondo.
What cabin class options are available on Lambert-St Louis to Detroit Metropolitan Wayne County flights?
There are 4 cabin classes available to choose from on Lambert-St Louis to Detroit Metropolitan Wayne County 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 St. Louis to Detroit Metropolitan Wayne County Airport flights?
No. A direct flight is the cheapest option for a flight between St. Louis to Detroit Metropolitan Wayne County Airport.
How have St. Louis to Detroit Metropolitan Wayne County Airport flight prices changed over time?
As of June 2025, prices for St. Louis to Detroit Metropolitan Wayne County Airport flights are approximately 62% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Lambert-St Louis to Detroit Metropolitan Wayne County?
Spirit Airlines, Southwest, and Delta are the most popular carriers operating from Lambert-St Louis to Detroit Metropolitan Wayne County
What airlines fly to Detroit Metropolitan Wayne County Airport?
Delta, Southwest and Spirit Airlines 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 74% of people opting to fly with this airline when traveling to Detroit Metropolitan Wayne County Airport. Keep in mind that there are 4 different airlines that fly to Detroit Metropolitan Wayne County Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from St. Louis to Detroit Metropolitan Wayne County Airport on average per day?
As of June 2025, there are 13 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 51% of flights taking off at noon.
How many flights depart from St. Louis to Detroit Metropolitan Wayne County Airport on average per week?
93 flights are operational weekly from St. Louis to Detroit Metropolitan Wayne County Airport as of June 2025. The most popular departure day for this route is Thu, with 20% of flights per week taking off on this day.
When to book flights from St. Louis to Detroit Metropolitan Wayne County Airport
Cheap St. Louis to Detroit Metropolitan Wayne County Airport (STL to DTW) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Detroit Metropolitan Wayne County Airport
How far is Lambert-St Louis to Detroit Metropolitan Wayne County by plane?
Lambert-St Louis and Detroit Metropolitan Wayne County are 436.9 mi apart from one another. Flights usually cover this in 1h 28m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Lambert-St Louis Airport to Detroit Metropolitan Wayne County Airport?
Prices for flights from Lambert-St Louis Airport to Detroit Metropolitan Wayne County Airport were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Detroit Metropolitan Wayne County Airport?
As of June 2025, there are 4 operators available to choose from for flights from Lambert-St Louis Airport to Detroit Metropolitan Wayne County Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Detroit Metropolitan Wayne County 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 Lambert-St Louis Airport to Detroit Metropolitan Wayne County Airport.
What documentation or ID do you need to fly to Detroit Metropolitan Wayne County Airport?
The necessary travel and health documents for your Detroit Metropolitan Wayne County Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from St. Louis to Detroit Metropolitan Wayne County Airport?
Based on momondo bookings for flights between St. Louis and Detroit Metropolitan Wayne County Airport, the leading plane model is Boeing 717-200, making up 24.58% of the total bookings. Other popular models include Boeing 737-700 Passenger/BBJ1 (winglets) with 20.71%, Boeing 737 MAX 8 with 13.40%, and Airbus A320neo with 6.87%.
What is the most popular airline from St. Louis to Detroit Metropolitan Wayne County Airport?
Based on momondo bookings for flights between St. Louis and Detroit Metropolitan Wayne County Airport, the leading airline is Delta, making up 74% of the total bookings. Other popular airlines include Southwest with 18%, Spirit Airlines with 6%, and American Airlines with 3%.
Best airlines flying from St. Louis to Detroit Metropolitan Wayne County Airport
Compare and see reviews for airlines that fly from St. Louis to Detroit Metropolitan Wayne County Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $37 | Free Cancellation | Rating 6.3 8,052 reviews | |||
| PriceFrom $170 | Free Cancellation | Rating 8.0 4,287 reviews | |||
| PriceFrom $201 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $211 | Free Cancellation | Rating 8.0 7,950 reviews |
Southwest Flights From St. Louis to Detroit Metropolitan Wayne County Airport
Southwest flies from St. Louis to Detroit Metropolitan Wayne County Airport around 10 times per week, with 4,287 momondo users rating the airline 8.0/10. The cheapest Southwest deal from St. Louis to Detroit Metropolitan Wayne County Airport in the last 72 hours was $170 (round-trip), much lower than the average airfare cost of $337 for Southwest flights on this route.
Delta Flights From St. Louis to Detroit Metropolitan Wayne County Airport
Delta (8.0/10 from 7,950 reviews) operates around 14 flights from St. Louis to Detroit Metropolitan Wayne County Airport in any given week. The average Delta airfare for this route is around $318, with deals from around $211 rare but found on momondo. Referenced prices are for round-trip St. Louis to Detroit Metropolitan Wayne County Airport flight searches in the last 72 hours.
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Why should I use momondo to find a flight deal from St. Louis to Detroit?
It is quick and easy to find St. Louis to Detroit flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Detroit that suits you.
Can I find flights from St. Louis to Detroit with flexible booking policies on momondo?
All flight searches from St. Louis to Detroit on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from St. Louis to Detroit?
Once all potential St. Louis to Detroit flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from St. Louis to Detroit right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Detroit from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.