STL - DTW

$28 Find Cheap Flights from St. Louis to Detroit

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Detroit departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Detroit Metropolitan Wayne County Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Detroit, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Detroit, as well as popular online travel agencies
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Flights Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Detroit that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Detroit

Thu, Aug 28 - Mon, Sep 1
Spirit Airlines Logo
2:30 pm - 5:00 pmSTL-DTW
1h 30mnonstop
Spirit Airlines Logo
1:00 pm - 1:32 pmDTW-STL
1h 32mnonstop
$58Spirit Airlines
Find Deal
Fri, Aug 29 - Mon, Sep 1
Spirit Airlines Logo
2:30 pm - 5:00 pmSTL-DTW
1h 30mnonstop
Spirit Airlines Logo
1:00 pm - 1:32 pmDTW-STL
1h 32mnonstop
$63Spirit Airlines
Find Deal
Thu, Oct 2 - Sun, Oct 5
Delta Logo
2:15 pm - 4:48 pmSTL-DTW
1h 33mnonstop
Delta Logo
7:59 pm - 8:34 pmDTW-STL
1h 35mnonstop
$119Delta
Find Deal
Thu, Aug 28 - Sun, Sep 28
Southwest Logo
7:50 am - 10:20 amSTL-DTW
1h 30mnonstop
Southwest Logo
8:55 pm - 9:30 pmDTW-STL
1h 35mnonstop
$125Southwest
Find Deal
Sun, Aug 31 - Sun, Sep 7
Delta Logo
5:25 pm - 7:58 pmSTL-DTW
1h 33mnonstop
Delta Logo
8:55 am - 9:32 amDTW-STL
1h 37mnonstop
$129Delta
Find Deal
Thu, Aug 28 - Sun, Sep 28
 Logo
2:30 pm - 5:00 pmSTL-DTW
1h 30mnonstop
 Logo
10:54 am - 3:04 pmDTW-STL
5h 10m1 stop
Sat, Aug 30 - Mon, Sep 1
 Logo
7:54 pm - 10:59 amSTL-DTW
14h 05m1 stop
 Logo
1:00 pm - 1:32 pmDTW-STL
1h 32mnonstop
Thu, Oct 2 - Tue, Oct 7
Southwest Logo
7:45 am - 10:15 amSTL-DTW
1h 30mnonstop
Southwest Logo
5:35 pm - 10:05 pmDTW-STL
5h 30m1 stop
$156Southwest
Find Deal
Tue, Sep 16 - Thu, Sep 18
American Airlines Logo
7:23 am - 12:09 pmSTL-DTW
3h 46m1 stop
American Airlines Logo
7:21 pm - 11:53 pmDTW-STL
5h 32m1 stop
$159American Airlines
Find Deal
Thu, Aug 28 - Tue, Sep 2
American Airlines Logo
5:27 am - 11:04 amSTL-DTW
4h 37m1 stop
American Airlines Logo
1:02 pm - 10:17 pmDTW-STL
10h 15m1 stop
$165American Airlines
Find Deal
Expert advice

Expert advice for your flight from St. Louis to Detroit

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
KLM

KLM offers free snacks and drinks, including wine and beer, on European routes.


KLM's Economy Standard includes one checked bag up to 50 pounds.

Read more about KLMby Blane Bachelor
Delta

Delta's Comfort Plus offers up to three extra inches of legroom.


Delta offers free Wi-Fi for SkyMiles members on domestic flights.

Read more about Deltaby Stefanie Waldek
Southwest

Southwest allows two free checked bags up to 50 pounds each.


Set an alarm to check in 24 hours beforehand for a better boarding position.

Read more about Southwestby Blane Bachelor
Airports
STL

Avoid peak hours at STL to skip long security lines and crowded terminals. Consider flights outside early mornings and afternoons.

Read more about STLby Yulia Denisyuk
DTW

DTW offers airport ambassadors to help guide you upon arrival. They can direct you to shops, kid-friendly areas, or your gate.

Read more about DTWby Ramsey Qubein
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on KLM and Southwest

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on DTW

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia Denisyuk

Yulia Denisyuk

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more
Booking Insights

KAYAK's insights & trends for St. Louis to Detroit flights

Get data-powered insights and trends into flights from St. Louis to Detroit to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to Detroit?

The average price of all round-trip flights from St. Louis to Detroit Metropolitan Wayne County Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from St. Louis to Detroit, look for departures on Thursdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Detroit, Friday is the cheapest day to fly and Monday is the most expensive.

What is the cheapest month to fly from St. Louis to Detroit Metropolitan Wayne County Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Detroit Metropolitan Wayne County Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Detroit Metropolitan Wayne County Airport is July, where tickets cost $160 (return) on average. On the other hand, the most expensive months are January and November, where the average cost of round-trip tickets is $372 and $346 respectively.

How far in advance should I book a flight from St. Louis to Detroit Metropolitan Wayne County Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Detroit Metropolitan Wayne County Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Detroit Metropolitan Wayne County Airport, you should book around 4 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$28
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly and prices are also 32% lower on average.
Flight from St. Louis to Detroit

When to book flights from St. Louis to Detroit

Are your dates flexible? Find out the best times to travel from St. Louis to Detroit based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking St. Louis to Detroit flights

  • What is the cheapest flight from St. Louis to Detroit Metropolitan Wayne County Airport?

    In the last 3 days, the lowest price for a flight from St. Louis to Detroit Metropolitan Wayne County Airport was $28 for a one-way ticket and $58 for a round-trip.

  • Do I need a passport to fly between St. Louis and Detroit?

    A passport is not required to fly from St. Louis to Detroit.

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Detroit?

    All the following airlines offer inflight Wi-Fi service on the St. Louis to Detroit flight route: Delta, American Airlines, Alaska Airlines, Lufthansa, United Airlines, and Air Canada.

  • Which aircraft models fly most regularly from St. Louis to Detroit?

    The Boeing 737-700 Passenger/BBJ1 (winglets) is the aircraft model that flies most regularly on the St. Louis to Detroit flight route.

  • Which airline alliances offer flights from St. Louis to Detroit?

    SkyTeam is the only airline alliance operating flights between St. Louis and Detroit.

  • On which days can I fly direct from St. Louis to Detroit?

    There are nonstop flights from St. Louis to Detroit on a daily basis.

  • Which is the best airline for flights from St. Louis to Detroit, Delta or Southwest?

    The two airlines most popular with KAYAK users for flights from St. Louis to Detroit are Delta and Southwest. With an average price for the route of $308 and an overall rating of 8.0, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $304 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from St. Louis to Detroit?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Detroit.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Detroit?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Detroit from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Detroit?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Detroit with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and DTW can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Detroit?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Detroit from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from St. Louis to Detroit Metropolitan Wayne County Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $122 or less one-way and $166 or less round-trip.

Prefer to fly direct from St. Louis to Detroit?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Lambert-St Louis to Detroit Metropolitan Wayne County.
Find which airlines fly direct from Lambert-St Louis Airport to Detroit Metropolitan Wayne County Airport, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to Detroit Metropolitan Wayne County

Monday

Air France, Delta, KLM, +5 more

Air France, Delta, +6 more

Tuesday

Air France, Delta, KLM, +5 more

Air France, Delta, +6 more

Wednesday

Air France, Delta, KLM, +4 more

Air France, Delta, +5 more

Thursday

Air France, Delta, KLM, +5 more

Air France, Delta, +6 more

Friday

Air France, Delta, KLM, +5 more

Air France, Delta, +6 more

Saturday

Air France, Delta, KLM, +5 more

Air France, Delta, +6 more

Sunday

Air France, Delta, KLM, +4 more

Air France, Delta, +5 more

See more direct flights

Direct returns

Detroit Metropolitan Wayne County to Lambert-St Louis

Monday

Aeromexico, Air France, Delta, +5 more

Aeromexico, Air France, +6 more

Tuesday

Air France, Delta, KLM, +4 more

Air France, Delta, +5 more

Wednesday

Aeromexico, Air France, Delta, +5 more

Aeromexico, Air France, +6 more

Thursday

Aeromexico, Air France, Delta, +5 more

Aeromexico, Air France, +6 more

Friday

Aeromexico, Air France, Delta, +5 more

Aeromexico, Air France, +6 more

Saturday

Aeromexico, Air France, Delta, +5 more

Aeromexico, Air France, +6 more

Sunday

Aeromexico, Air France, Delta, +5 more

Aeromexico, Air France, +6 more

See more direct flights

Reviews of the top 3 airlines serving from St. Louis to Detroit

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Detroit. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Detroit? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4246 reviews
8.0Comfort
8.6Crew
7.5Entertainment
8.1Boarding
7.0Food
Airline reviews

Other than a bit of a delay, everything was good. Again, the boarding process and picking seats is the only thing I don't enjoy.

8.0 ExcellentBrian, Aug 2025BWI - CVG
Read more Southwest reviews

Other than a bit of a delay, everything was good. Again, the boarding process and picking seats is the only thing I don't enjoy.

If we are going to have to pay for luggage, make it easier to do. Put something on the app during check-in so I don't need to do it at the kiosk. I've done it twice recently and I ended up having to pay at the desk because something went wrong at the kiosk in Tampa.

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order

Worst experience I had on Southwest. Still better than most, but the seating was barely tolerable.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

It was okay. The plane was delayed from earlier in the day, but they kept updating the departure time, sometimes later, sometimes earlier. That was stressful. Once we finally got on and took off, it was fine. I was supposed to have a connection in Chicago to Los Angeles, and the time for so late I was rebooked to arrive in LA 3 hours late. The departure time to Chicago later became early enough to have taken my original connection and arrive earlier but that wasn't an option.

It was one and half hour late... Not sure if any other experience matters.

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

There was no problems, just a little uncomfortable with seats that do not lay back a little

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Boarding in Amsterdam is always chaotic. KLM/ Delta has not streamlined or made it efficient as it was boarding in Detroit . The food was mediocre The crew was unfriendly and more focused on getting things done quickly rather than service with a smile .

Lower number on this flight so spaced out passengers. Able to enjoy more room to relax during flight. It was lovely.

Broken jer bridge. Poor communication about it. Lost 2 of 4 luggage pieces

Coach seating is debilitating, neither my husband or I can walk the following day

I didn't order food. I requested a Tomato juice and was given a boody mary mix. The serve needs to warn the customer what their given. It wasn't a huge deal, but I wasted $4.50.

This gate agents are always so rude! I stopped flirting with spirit years ago for that reason I thought it would change by now. It’s so tacky they try to treat you like a school child i hate it

Just total easy flight experience!! What could you do better..? Hmmm..? There was nothing I can remember. Spirit was a far more comfortable and easy process than American, United & Delta. I'll always look for Spirit and I've told a few people about, since flying this past trip!! I'm a SPIRIT FAN!! Thank You, SPIRIT AIRLINES!! Very, VERY well done, 100%!! See you...SOON!! -Best, Linda R.

After 2 hrs the flight was canceled. The next flight wasn’t until 4 days away! They wouldn’t book us with other airlines. We ended up driving 15 hrs to get home

The flight was on time, boarding was efficient, staff was nice. Seats seem to have been upgraded on this model and were clean and tidy. I did not purchase in flight snacks.

check in at security was a hassle being scanned. Spirit employees were helpful and professional.

First time on Spirit. Definitely a streamline flight but I would fly Spirit again.

The flight was 3.5 hrs delayed. I was not notified prior to arriving to the airport via spirit app. or via boarding pass that I already had loaded on my phone. The agent that i saw at the counter didn’t mention anything about the delay either. I only saw the update after logging in to my email account.

The flight and boarding process was smooth. Wifi was unavailable and I prepaid for it. Have requested a refund

Had a issue with catching flight due to airline, was unable to board flight

Everything you need to know for your flight from St. Louis to Detroit

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