DTW - STL

Find cheap flights from Detroit to St. Louis

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
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Everything you should know

Cheapest round-trip
Multiple Airlines
Fri 30/1
DTW - STL • multi-stop
Cheapest one-way flights
Multiple Airlines
Fri 30/1
DTW - STL • multi-stop
Our travellers' 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 travellers 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 • 56% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds 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

Multiple Airlines Logo
DTW
-
STL
1138 kmmulti-stop
Multiple Airlines Logo
STL
-
DTW
1138 kmmulti-stop
Multiple 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 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 C$ 164 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is C$ 512 and C$ 461 respectively.

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.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Delta

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.

Blane Bachelor

Blane Bachelor

Expert on Southwest

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.

Ramsey Qubein

Ramsey Qubein

Expert on DTW

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.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

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.

Good to know

Low seasonDecember
Best time to beat the crowds but there is an average 37% increase in price.
Most popular time to fly and prices are also 43% lower on average.

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

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

    Delta, American Airlines, JetBlue, Aeromexico, and Alaska Airlines 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 Airbus A319 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 direct 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 C$ 352 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 C$ 364 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 travellers 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.

  • 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 C$ 504 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 nonstop 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 nonstop flights

Reviews of the top airlines flying 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 4267 reviews
8.1Boarding
8.6Crew
7.0Food
8.0Comfort
7.5Entertainment
Airline reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

10.0 ExcellentAnonymous, Jan 2026
PHX - MDW
Read more Southwest reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

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

Information on your arrival and departure airports