DTW - STL

$60 Find Cheap Flights from Detroit to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Detroit to St. Louis departing on 1/23. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Detroit to St. Louis, 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 Detroit to St. Louis, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% 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.

Everything you should know

Cheapest round-trip
$154
Overall average: $288
Multiple Airlines
Fri 2/6Sun 2/8
DTW - STL • 1 stop
Cheapest non-stop
$263
Typical prices: $300-$529
Southwest
Tue 1/13Tue 1/20
DTW - STL • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Delta's Comfort Plus seats offer extra legroom.
Southwest provides two free checked bags for families.
Expert advice
Expert advice
Expert advice
Expert advice
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 57% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 55% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Detroit to St. Louis 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 Detroit to St. Louis

Fri, Feb 6 - Sun, Feb 8
Multiple Airlines Logo
2:36 pm - 6:51 am
DTW
-
STL
17h 15m1 stop
Multiple Airlines Logo
5:42 pm - 2:19 pm
STL
-
DTW
19h 37m1 stop
$154Multiple Airlines
Tue, Jan 13 - Tue, Jan 20
Multiple Airlines Logo
11:00 am - 6:51 am
DTW
-
STL
20h 51m1 stop
Multiple Airlines Logo
5:42 pm - 1:52 pm
STL
-
DTW
19h 10m1 stop
$175Multiple Airlines
Fri, Jan 9 - Mon, Jan 12
Multiple Airlines Logo
4:43 pm - 10:02 am
DTW
-
STL
18h 19m1 stop
Multiple Airlines Logo
5:11 pm - 11:41 pm
STL
-
DTW
29h 30m1 stop
$180Multiple Airlines
Thu, Jan 15 - Mon, Jan 19
Frontier Logo
12:56 pm - 11:52 am
DTW
-
STL
23h 56m1 stop
Frontier Logo
5:11 pm - 10:54 am
STL
-
DTW
16h 43m1 stop
$181Frontier
Wed, Jan 7 - Thu, Jan 8
Multiple Airlines Logo
10:38 am - 10:33 pm
DTW
-
STL
12h 55m1 stop
Multiple Airlines Logo
3:43 pm - 2:30 pm
STL
-
DTW
21h 47m1 stop
$192Multiple Airlines
Thu, Jan 15 - Mon, Jan 19
Multiple Airlines Logo
3:12 pm - 7:54 am
DTW
-
STL
17h 42m2 stops
Multiple Airlines Logo
5:11 pm - 10:54 am
STL
-
DTW
16h 43m1 stop
$194Multiple Airlines
Thu, Jan 8 - Sun, Jan 11
Frontier Logo
11:41 am - 10:33 pm
DTW
-
STL
11h 52m1 stop
Frontier Logo
9:35 am - 10:33 am
STL
-
DTW
23h 58m1 stop
$197Frontier
Fri, Jan 9 - Mon, Jan 12
Multiple Airlines Logo
4:43 pm - 10:02 am
DTW
-
STL
18h 19m1 stop
Multiple Airlines Logo
5:11 pm - 9:03 pm
STL
-
DTW
26h 52m2 stops
$198Multiple Airlines
Mon, Jan 5 - Thu, Jan 8
Frontier Logo
2:55 pm - 10:33 pm
DTW
-
STL
8h 38m1 stop
Frontier Logo
5:11 pm - 10:46 am
STL
-
DTW
16h 35m1 stop
$200Frontier
Thu, Jan 29 - Sun, Feb 1
Multiple Airlines Logo
5:15 am - 11:33 pm
DTW
-
STL
19h 18m1 stop
Multiple Airlines Logo
5:42 pm - 5:09 pm
STL
-
DTW
22h 27m2 stops
$204Multiple Airlines
Booking Insights

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

Get data-powered insights and trends into flights from Detroit to St. Louis 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 Detroit to St. Louis?

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

Your flight ticket price will generally be cheaper if you fly to St. Louis on a Thursday and more expensive on a Monday. On your return trip to Detroit, you should consider flying back on a Friday, and avoid Wednesdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Detroit Metropolitan Wayne County Airport to St. Louis, 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 Detroit Metropolitan Wayne County Airport to St. Louis is July, where tickets cost $121 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $385 and $321 respectively.

Can I save money by flying with a layover from Detroit Metropolitan Wayne County Airport to St. Louis?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $339, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Detroit Metropolitan Wayne County Airport to St. Louis, 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 Detroit Metropolitan Wayne County Airport to St. Louis, you should book around 5 weeks before departure, which saves you about 57% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Expert advice

Expert advice for your flight from Detroit to St. Louis

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Delta

Delta offers free Wi-Fi for SkyMiles members on domestic flights, perfect for business travelers.


Delta's Comfort Plus seats offer up to three extra inches of legroom for added comfort.

Southwest

Southwest offers free carry-on and personal item, but checked bags now incur fees.


Southwest's cancellation policy allows changes up to 10 minutes before departure for flexibility.

Airports
DTW

For early departures, consider staying at an airport hotel offering parking deals. This can save time and stress before your flight.

STL

Use MetroLink for easy access to downtown St. Louis. The Red Line connects the airport to popular areas like Delmar Loop and Central West End.

Our travel experts
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
Blane Bachelor

Blane Bachelor

Expert on 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
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

Good to know

Low seasonDecember
Cheapest flight$60
Best time to beat the crowds but there is an average 43% increase in price.
Most popular time to fly and prices are also 44% lower on average.
Flight from Detroit to St. Louis

When to book flights from Detroit to St. Louis

Are your dates flexible? Find out the best times to travel from Detroit to St. Louis 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 Detroit to St. Louis flights

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

    In the last 3 days, the lowest price for a flight from Detroit Metropolitan Wayne County Airport to St. Louis was $60 for a one-way ticket and $154 for a round-trip.

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

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

  • Which airports will I be using when flying from Detroit to St. Louis?

    Detroit airport is called Detroit Metropolitan Wayne County and the only airport in St. Louis is Lambert-St Louis.

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

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

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

    The Boeing 717-200 is the aircraft model that flies most regularly on the Detroit to St. Louis flight route.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Detroit to St. Louis are Southwest and Delta. With an average price for the route of $294 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $309 and an overall rating of 7.9.

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

    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 Detroit to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Detroit 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 Detroit to St. Louis?

    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 St. Louis with an airline and back to Detroit with another airline. Booking your flights between Detroit and STL 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 Detroit to St. Louis?

    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 St. Louis from Detroit 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 Detroit Metropolitan Wayne County Airport to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $210 or less one-way and $307 or less round-trip.

Prefer to fly direct from Detroit to St. Louis?

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

Direct departures

Detroit Metropolitan Wayne County to Lambert-St Louis

Monday

Delta, Southwest

Delta, Southwest

Tuesday

Delta, Southwest

Delta, Southwest

Wednesday

Delta, Southwest

Delta, Southwest

Thursday

Delta, Southwest

Delta, Southwest

Friday

Delta, Southwest

Delta, Southwest

Saturday

Delta, Southwest

Delta, Southwest

Sunday

Delta, Southwest

Delta, Southwest

See more direct flights

Direct returns

Lambert-St Louis to Detroit Metropolitan Wayne County

Monday

Delta, Southwest

Delta, Southwest

Tuesday

Delta, Southwest

Delta, Southwest

Wednesday

Delta, Southwest

Delta, Southwest

Thursday

Delta, Southwest

Delta, Southwest

Friday

Delta, Southwest

Delta, Southwest

Saturday

Delta, Southwest

Delta, Southwest

Sunday

Delta, Southwest

Delta, Southwest

See more direct flights

Reviews of the top 4 airlines serving from Detroit to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Detroit to St. Louis. 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 Detroit to St. Louis? 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 4256 reviews
7.5Entertainment
8.0Comfort
8.6Crew
7.0Food
8.1Boarding
Airline reviews

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

4.0 OkayChad, Dec 2025
BNA - PNS
Read more Southwest reviews

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

The plant way delayed departing by 3 hours. It was an old airplane with broken seats and armrests. The bathroom made a hollering sound. A really crappy flight experience and travel day all around.

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

Wasn't a Delta issue I don't think, but seems there was a Delta flight at each of the 2 Dallas airports at the same exact time, both to Atlanta. I was evidently booked on the one at Love Airport, but the Carey transport shuttle took me to DFW instead and I ended up missing the flight by just a few minutes. Was able to book a Southwest flight from Love Airport, but was a big loss of time and an inconvenience.

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

Spirit cancelled the flight very late last night, I was on the way to the airport when I found out

First time in a decade I threw up on the flight, turbulence was terrible!! The staff were kinda rude at times.

Boarding was good, clearly explained and efficient. Staff were helpful, I would've liked a place to get coffee that wasn't Starbucks

Customer feedback I sent to Spirited today: “I will never fly Spirit Airlines again and will work hard to convince my friends and family to boycott/avoid Spirit Airlines at all costs. I booked three seats for me and my 8 and 10 year old children on NK 1222 from Orlando to Kansas City for 12/7/25 leaving Orlando at 10:37AM. This itinerary was abandoned by Spirit and we were rebooked onto Spirit flight NK 213 leaving at 9:06PM without any notice. Then the nightmare really began. Flight 213 was delayed a total of 12 times, finally leaving at 6:35AM the following day. The gate was changed 5 times and our electronic boarding passes were invalidated at midnight. The worst part was that the 12 separate delays were incremental making it impossible to plan for accommodations for my family. My kids missed a day of school and barely slept under the harsh lights with lots of noise on the filthy airport floor. The customer service agent at Spirit Airlines told us we would be emailed a voucher for a hotel which never happened. I asked about it multiple times and it never arrived in my email inbox. This whole unfortunate situation could’ve been avoided if spirit had taken a realistic approach and delayed the flight from 9 PM until 6 AM from the beginning. My son gleefully deleted the Spirit app from my phone once we landed and we will never fly with Spirit again.”

30 minute delay, Also there was a medical emergency on the flight. The flight crew was on top of the situation and assisted the medical professionals that happened to be on the flight.

It was better than expected. But there were two delays in taking off.

The pilot would speak it was painfully load a d the crew had to know this! Maybe the were hesitant to tell him. It was just a mediocre experience and I was in Spirit first class!

My experience was terrible. They cancelled my flight twice. They kept delaying it and leading me on, acting like the flight was going to go when it never had a chance. I missed out on valuable family time because of spirit and I won’t be flying with them again.

Was supposed to take off 8:00 last night. Got delayed till 8:00 this morning

It was a no show, so we got put in hotels for a nite. The A320 plane was very modern and flite and crew (if a pilot shows up were fine). Price was very good.

Not clean and was told I would get a great seat and it was not great at all

Flight got delayed for 5 hours no good explanation was offered ;(

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

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

Information on your arrival and departure airports