$60 Cheap Flights from Detroit (DTW) to St. Louis (STL)

View $60 flight on Sun, Aug 3, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Detroit to St. Louis (DTW-STL)

Prices were available within the past 7 days and start at $60 for one-way flights and $120 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Fri, Aug 15 - Sun, Aug 17
DTW
Detroit
STL
St. Louis
$120 Roundtrip, found 1 hour ago
$120
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Fri, Aug 15 from Detroit to St. Louis, returning Sun, Aug 17, priced at $120 found 1 hour ago
Delta
Tue, Jun 24 - Fri, Jun 27
DTW
Detroit
STL
St. Louis
$160 Roundtrip, just found
$160
Roundtrip
just found
Select Delta flight, departing Tue, Jun 24 from Detroit to St. Louis, returning Fri, Jun 27, priced at $160 just found
Southwest Airlines
Tue, Jun 24 - Fri, Jun 27
DTW
Detroit
STL
St. Louis
$169 Roundtrip, just found
$169
Roundtrip
just found
Select Southwest Airlines flight, departing Tue, Jun 24 from Detroit to St. Louis, returning Fri, Jun 27, priced at $169 just found
American Airlines
Tue, Jun 24 - Fri, Jun 27
DTW
Detroit
STL
St. Louis
$170 Roundtrip, just found
$170
Roundtrip
just found
Select American Airlines flight, departing Tue, Jun 24 from Detroit to St. Louis, returning Fri, Jun 27, priced at $170 just found
Frontier Airlines
Sun, May 18 - Wed, May 21
DTW
Detroit
STL
St. Louis
$170 Roundtrip, found 1 day ago
$170
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, May 18 from Detroit to St. Louis, returning Wed, May 21, priced at $170 found 1 day ago
American Airlines
Tue, May 20 - Tue, May 27
DTW
Detroit
STL
St. Louis
$171 Roundtrip, found 10 hours ago
$171
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, May 20 from Detroit to St. Louis, returning Tue, May 27, priced at $171 found 10 hours ago
Frontier Airlines
Thu, May 8 - Sun, Jun 15
DTW
Detroit
STL
St. Louis
$173 Roundtrip, found 7 hours ago
$173
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Thu, May 8 from Detroit to St. Louis, returning Sun, Jun 15, priced at $173 found 7 hours ago
Frontier Airlines
Wed, Jul 23 - Mon, Jul 28
DTW
Detroit
STL
St. Louis
$174 Roundtrip, found 2 days ago
$174
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Jul 23 from Detroit to St. Louis, returning Mon, Jul 28, priced at $174 found 2 days ago
Southwest Airlines
Fri, Jul 4 - Sun, Jul 13
DTW
Detroit
STL
St. Louis
$175 Roundtrip, found 1 hour ago
$175
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Fri, Jul 4 from Detroit to St. Louis, returning Sun, Jul 13, priced at $175 found 1 hour ago
Southwest Airlines
Tue, Jun 24 - Fri, Jun 27
DTW
Detroit
STL
St. Louis
$179 Roundtrip, just found
$179
Roundtrip
just found
Select Southwest Airlines flight, departing Tue, Jun 24 from Detroit to St. Louis, returning Fri, Jun 27, priced at $179 just found
Flights from Detroit (DTW) to St. Louis (STL)
Origin airport
Detroit Metropolitan Wayne County
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$120
Distance
439 mi

Detroit to St. Louis Flights

The cheapest times to fly from Detroit to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Detroit to St. Louis are during the month of August. You can find some of the cheapest flights from Detroit to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Detroit to St. Louis

Sunday is one of the best days to book for cheap flights from Detroit to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Detroit to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Detroit to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $60 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Detroit to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Detroit to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL) cost?
You can book cheap return fares starting from $140 from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Spirit Airlines flight leaving DTW on May 20 2025 and touching down at STL. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from DTW to STL?
The cheapest flights from DTW to STL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL)?
You can fly nonstop from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL) on a Delta Air Lines flight.
What is the cheapest airline that flies from DTW to STL?
Right now, the cheapest airline operating one-way flights from DTW to STL is Spirit Airlines. You can jet off on this route from $70. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DTW on July 20 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL)?
When taking off from Detroit Metropolitan Wayne County Airport (DTW), you can take your pick from an average of 4 daily nonstop flights to Lambert-St. Louis Intl. Airport (STL).
What are the most popular departure times for flights from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL)?
More passengers fly between DTW and STL at 8 AM than at any other point in the day. Looking to skip the crowds? Travel outside of rush hours and you’re likely to save on your ticket as well.
What day of the week has the most flights from DTW to STL?
If you fly on a Wednesday, you’ll get the greatest range of options for flights from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL).
What is the earliest flight from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL)?
The earliest flight departing from Detroit Metropolitan Wayne County Airport (DTW) is at around 8:40AM UTC-5. Hop on this flight and you’ll land at Lambert-St. Louis Intl. Airport (STL) at approximately 9:36AM UTC-6. The total travel time is 1h 56m.
How long does it take to fly from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL)?
The average flight time from DTW to STL is 1 hour and 50 minutes, covering a distance of 440 mi.
What airline has the least delays from DTW to STL?
With 100% of flights typically arriving on time, Aeromexico has the best on-time performance for nonstop flights from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL). To check your flight status and get notified about any changes, use the Expedia App.
What is the best time to fly from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL)?
To arrive at Lambert-St. Louis Intl. Airport (STL) on schedule, pick a flight that leaves Detroit Metropolitan Wayne County Airport (DTW) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for St. Louis from Detroit Metropolitan Wayne County Airport (DTW)?
Check out your flight options from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL). This is the only airport in St. Louis you can arrive at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Holding off until right before your break to book a flight from DTW to STL generally means paying more. While you may find some last-minute offers, they aren’t always guaranteed. Keep your travel plans flexible for the best chance of snagging a bargain.
Is it cheaper to book a DTW to STL flight and hotel package?
You’ll typically save money by securing a DTW to STL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s easy to manage everything in one convenient place. After choosing your preferred accommodations and flights, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Detroit Metropolitan Wayne County Airport (DTW) to Lambert-St. Louis Intl. Airport (STL)?
Generally, it’s possible to cancel or reschedule your DTW to STL flight. However, if it’s been more than 24 hours since booking, additional charges may apply. Refer to your airline’s policies in your itinerary to see what changes are possible and whether any costs are involved. You’ll also find more details on our Customer Service portal.

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