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 9/1. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Expert advice
Useful Info
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

Fri, Aug 15 - Sun, Aug 17
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 15 - Fri, Aug 22
Spirit Airlines Logo
2:30 pm - 5:00 pmSTL-DTW
1h 30mnonstop
Spirit Airlines Logo
1:00 pm - 1:32 pmDTW-STL
1h 32mnonstop
$60Spirit Airlines
Find Deal
Thu, Sep 25 - Mon, Sep 29
Southwest Logo
7:20 pm - 9:50 pmSTL-DTW
1h 30mnonstop
Southwest Logo
8:15 pm - 8:50 pmDTW-STL
1h 35mnonstop
$119Southwest
Find Deal
Mon, Jul 21 - Thu, Jul 24
 Logo
10:47 am - 1:16 pmSTL-DTW
1h 29mnonstop
 Logo
9:36 am - 1:34 pmDTW-STL
4h 58m1 stop
Wed, Oct 1 - Sun, Oct 5
Delta Logo
6:40 am - 9:13 amSTL-DTW
1h 33mnonstop
Delta Logo
8:55 am - 9:33 amDTW-STL
1h 38mnonstop
$128Delta
Find Deal
Wed, Aug 13 - Mon, Aug 18
Delta Logo
6:40 am - 9:13 amSTL-DTW
1h 33mnonstop
Delta Logo
7:59 pm - 8:33 pmDTW-STL
1h 34mnonstop
$137Delta
Find Deal
Thu, Aug 7 - Sun, Aug 10
 Logo
10:47 am - 1:16 pmSTL-DTW
1h 29mnonstop
 Logo
9:36 am - 1:34 pmDTW-STL
4h 58m1 stop
Fri, Sep 5 - Mon, Sep 8
Southwest Logo
7:50 am - 10:20 amSTL-DTW
1h 30mnonstop
Southwest Logo
8:15 pm - 8:50 pmDTW-STL
1h 35mnonstop
$148Southwest
Find Deal
Wed, Jul 30 - Tue, Aug 5
American Airlines Logo
7:23 am - 4:37 pmSTL-DTW
8h 14m1 stop
American Airlines Logo
7:31 pm - 11:59 pmDTW-STL
5h 28m1 stop
$165American Airlines
Find Deal
Fri, Aug 1 - Thu, Aug 21
American Airlines Logo
4:28 pm - 10:36 pmSTL-DTW
5h 08m1 stop
American Airlines Logo
1:02 pm - 3:49 pmDTW-STL
3h 47m1 stop
$173American 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
Useful Info

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 $210 (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 $353 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 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$28
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly and prices are also 31% 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?

    Delta, American Airlines, Lufthansa, and United Airlines offer inflight Wi-Fi service on the St. Louis to Detroit flight route.

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

    The Boeing 717-200 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 $313 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 $314 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 $97 or less one-way and $173 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, +4 more

Air France, Delta, +5 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, +4 more

Air France, Delta, +5 more

Sunday

Air France, Delta, KLM, +5 more

Air France, Delta, +6 more

See more direct flights

Direct returns

Detroit Metropolitan Wayne County to Lambert-St Louis

Monday

Aeromexico, Air France, Delta, +6 more

Aeromexico, Air France, +7 more

Tuesday

Aeromexico, Air France, Delta, +5 more

Aeromexico, Air France, +6 more

Wednesday

Aeromexico, Air France, Delta, +5 more

Aeromexico, Air France, +6 more

Thursday

Aeromexico, Air France, Delta, +6 more

Aeromexico, Air France, +7 more

Friday

Aeromexico, Air France, Delta, +6 more

Aeromexico, Air France, +7 more

Saturday

Aeromexico, Air France, Delta, +5 more

Aeromexico, Air France, +6 more

Sunday

Aeromexico, Air France, Delta, +6 more

Aeromexico, Air France, +7 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 4266 reviews
8.6Crew
7.6Entertainment
8.2Boarding
7.0Food
8.0Comfort
Airline reviews

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

4.0 OkayTraci, Jun 2025OAK - SEA
Read more Southwest reviews

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Sat on tarmac for 2 hours and then missed my connecting flight

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

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

Extremely dosappoontined and frustrated. Refused entry to lounge in Detroit despite having Delta AMEX Reserve linked in MyDelta phone app as revommended and also having proof of account. No pillows were available for overnight flight to AMS and breakfast was not served in Delta Comfort.

I liked the screens in the seat headrest with movies to watch. I didn’t like being forced to check my carryon bag and being told there wasn’t room for my bag - when there were 5 bins sitting empty on takeoff. I didn’t like the “I don’t give a fig” attitude of the flight attendants and the delta gate attendants when I asked why they decided to put me out. They gave me a 1800 number to call but I can’t get a live person on the phone. Customer service is non existent. My business must not be that important to them.

Unfortunately, spirits crew had us boarding and parking the plane often, would wait long periods of time before allowing the people attending the flight on the plane to know what was going on this caused for my plane to not only get diverted but then canceled at an airport 2 hours away and basically stranded with charter buses MAYBE being hired. I was left with no choice but to stay overnight and use a comp room in Altantic City to then arrive home the next day. This trip was the first time seeing my partner since he joined the Air Force and this stressful ride caused unwarranted tears on what was supposed to be an east flight home. I understand weather is unpredictable but to have passengers deboard to then reboard an hour later to taxi on the runway for another hour to then basically leave an entire fight stranded. I waited almost 30 minutes at the airport and not one employee could tell me about a charter bus so I had to leave and make accommodations to stay overnight and get a ride home.

I wanted to upgrade my seat because I’m 6’2 and never have enough leg room for my comfort. They upgraded my seat for free putting me in an emergency exit seat. I was very comfortable

I have never flown Spirit it was much better than anticipated!

Staff was very friendly. They attended to people nicely and reprimanded, in a professional way, to those who wouldn’t listen. AC wasn’t working on the flight waiting to depart in Burbank, so it was uncomfortable for a while since the flight was delayed but then better before take off.

This was the first time I use Spirit Airlines and was pleasantly surprised. It was a last-minute booking and I was happy to see there was availability on your airline for a price that was affordable. The staff was friendly. The only things I thought were missing, were the ability to recline the seats, although I don’t use that very often, and it would’ve been nice to have power access at the seats to plug in my devices.

Flight was on time and was not crowded. Flight attendants were very understanding of my wife’s back problems.

Good on that leg. When I arrived in Detroit I had to wait over an hour for luggage.

Not very good because of an almost 3 hour delay for an hour long flight.

We had an almost 7 hour flight delay. We left the gate twice and taxi-ed and then returned the gate twice. Finally we got a new flight crew (our third one) and then left the gate to the final time before departing at 6:45pm (original flight time was 12pm). Out of Newark.

I made it safely. The flight was delayed, though. Not upset or expect anything.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.