STL - DTW

$63 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 6/10. 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 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

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Everything you should know

Cheapest round-trip
$126
Typical prices: $324-$165
Frontier
Tue 5/26Tue 6/2
STL - DTW • 1 stop
Cheapest non-stop
$197
Typical prices: $340-$164
Delta
Tue 5/26Tue 6/2
STL - DTW • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Delta's Comfort Plus offers extra legroom on this route.
Avoid peak hours at STL for shorter security lines.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $126 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Delta and Southwest. Average duration is 1h 32m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $187 (round-trip)
Shortest trip • 6h 07m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 61% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 54% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Detroit!
Flight Deals
Booking Insights
Expert advice
Flight 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

Tue, May 26 - Tue, Jun 2
Frontier Logo
6:33 pm - 5:13 pm
STL
-
DTW
21h 40m
1 stop
Frontier Logo
1:59 pm - 8:55 am
DTW
-
STL
19h 56m
1 stop
$126Frontier
Tue, May 26 - Tue, Jun 2
Frontier Logo
6:33 pm - 11:49 am
STL
-
DTW
16h 16m
2 stops
Frontier Logo
1:59 pm - 8:55 am
DTW
-
STL
19h 56m
1 stop
$159Frontier
Thu, May 28 - Sun, May 31
Multiple Airlines Logo
6:33 pm - 12:38 am
STL
-
DTW
5h 05m
1 stop
Multiple Airlines Logo
6:30 am - 8:55 am
DTW
-
STL
27h 25m
1 stop
$165Multiple Airlines
Thu, Jun 4 - Sun, Jun 7
Frontier Logo
6:33 pm - 12:38 am
STL
-
DTW
5h 05m
1 stop
Frontier Logo
1:59 pm - 8:55 am
DTW
-
STL
19h 56m
1 stop
$170Frontier
Thu, Jun 4 - Sun, Jun 7
Frontier Logo
6:33 pm - 12:38 am
STL
-
DTW
5h 05m
1 stop
Frontier Logo
1:59 pm - 8:55 am
DTW
-
STL
19h 56m
1 stop
$176Frontier
Fri, May 15 - Sun, May 17
Frontier Logo
5:27 pm - 12:39 am
STL
-
DTW
6h 12m
1 stop
Frontier Logo
6:50 am - 4:54 pm
DTW
-
STL
11h 04m
1 stop
$180Frontier
Tue, May 26 - Thu, May 28
Frontier Logo
8:08 pm - 11:59 pm
STL
-
DTW
26h 51m
1 stop
Frontier Logo
6:50 am - 5:33 pm
DTW
-
STL
11h 43m
1 stop
$185Frontier
Tue, Aug 4 - Tue, Aug 11
Frontier Logo
6:33 pm - 12:40 am
STL
-
DTW
5h 07m
1 stop
Frontier Logo
8:00 am - 7:23 pm
DTW
-
STL
12h 23m
1 stop
$190Frontier
Tue, May 26 - Tue, Jun 2
Delta Logo
10:19 am - 12:50 pm
STL
-
DTW
1h 31mnonstop
Delta Logo
8:30 pm - 9:09 pm
DTW
-
STL
1h 39mnonstop
$197Delta
Mon, May 25 - Mon, Jun 1
Frontier Logo
5:27 pm - 12:39 am
STL
-
DTW
6h 12m
1 stop
Frontier Logo
6:05 pm - 5:33 pm
DTW
-
STL
24h 28m
1 stop
$198Frontier
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.

How much is a round-trip flight from St. Louis to Detroit Metropolitan Wayne County Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Detroit Metropolitan Wayne County Airport departing in May.

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 Fridays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Detroit, Thursday 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 August, where tickets cost $136 (return) on average. On the other hand, the most expensive months are February and March, where the average cost of round-trip tickets is $420 and $400 respectively.

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

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 $309, prices are generally cheapest when you fly direct.

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 61% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Expert advice

Expert advice for your flight from St. Louis to Detroit

 
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
Blane Bachelor

Blane Bachelor

Expert on KLM and 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.

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.

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 seasonFebruary
Cheapest flight$63
Best time to beat the crowds but there is an average 40% increase in price.
Most popular time to fly and prices are also 55% 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 $63 for a one-way ticket and $126 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, JetBlue, American Airlines, Air Canada, Alaska Airlines, and United Airlines.

  • 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, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from St. Louis to Detroit are Southwest and Delta. With an average price for the route of $277 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 $313 and an overall rating of 7.9.

  • 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 $183 or less one-way and $359 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

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

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

Reviews of the top 4 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 4314 reviews
7.0Food
8.6Crew
8.1Boarding
8.0Comfort
7.5Entertainment
Airline reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

10.0 Excellentlarry, Apr 2026
LGB - PHX
Read more Southwest reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

Didn't like sitting on the waiting pad for 30 minutes right after departing the gate. If you're going to do that, just don't board so people can still get up and walk around in the terminal. My luggage was damaged by the baggage handlers.

The gentleman at the gate I think his name is RIE was exceptional

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Everything could have benn better. Short fly, no food, no entertainment and no wifi.

On the return flight, flight attendant Britt went out of her way to inform passengers that several of us had tight connections.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

Kayak botched up the booking, i had to call delta and fix. In the process Delta failed to honor my comfort plus seat assignment that i had previously.

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

No pilots so we were two hours late taking off and then no gate agents when we arrived in Salt Lake.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

The boarding process was simple but the seats were very uncomfortable. The staff lady was also very hard to understand when she spoke over the intercom about procedures and updates. Other staff members seemed like they were just tired and didnt want to be on the plane. Im used to happy attendants and being able to understand what is said over the speakers.

I didnt have a flight. Kayak must be on drugs because I confirmed with spirit that I had no booked flight.

Spirit is awful, and cost me an extra $400. On the flight to the destination they staff was rude and did not even offer water during the flight. On the return flight, while on the way to the terminal, Spirit cancelled the flight. This is the second time this has happened, and I believe they should compensate for the additional cost for incurred for the return flight. Spirit simply offered reimbursement for their cancelled flight, and did not take into consideration the cost for a last-minute flight home. The TSA agents expressed how Spirit often cancels evening/night flights, and shows no concern for the passengers.

They didn’t put my luggage on my transfer so I had to spend the night in Detroit. They said my luggage would be here in the morning and they’re still searching for it. It did not arrive apparently.

We were delayed and the bag charge fees are very expensive.

The flight was supposed to leave at 6:22pm we are just now leaving the gate after deplaning twice at 1:07am.

Food and entertainment see irrelevant to rate them as that’s not really an option anymore. The flight was fast and friendly. The plane was immaculately clean.

Spent seven hours in the airport with spirit pushing he flight time back two hours every two hours only to then have it canceled without explanation. The employees said, “They’ve been doing this for the last five days.” Would have been great if they told us to expect that when we arrived.

Staff was good! Didn't like how slow the luggage return was

I was waiting in line for the restroom onboard, the flight attendant told me to step back two rows and stay on the carpet. She was rude and I expected a tik tok experience with me getting thrown off the plane. She was rude and frankly there was no where else to stand.

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

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

Information on your arrival and departure airports