St. Louis

$79+ Cheap flights from Detroit Metropolitan Wayne County Airport to St. Louis (DTW - STL)

DTW — STL
Dec 4 — Dec 111
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Detroit Metropolitan Wayne County to Lambert-St Louis are usually found in September or August, booked 35 days in advance, depart on a Saturday or Thursday and return on a Saturday

Cheap flight deals from Detroit to St. Louis

Cheapest flights from Detroit to St. Louis

Tue 12/16:08 pm -
1 stop18h 02m
Fri 12/412:02 pm -
1 stop7h 46m
Deal found 11/1$150
Thu 12/32:27 pm -
2 stops21h 50m
Wed 12/912:02 pm -
1 stop24h 45m
Deal found 11/1$184
Thu 12/310:35 am -
2 stops25h 42m
Mon 12/77:54 pm -
1 stop28h 16m
Deal found 11/3$195
Sat 12/51:40 pm -
1 stop11h 32m
Mon 12/77:54 pm -
1 stop28h 16m
Deal found 11/3$206
Fri 11/276:00 am -
1 stop7h 25m
Fri 12/412:02 pm -
1 stop7h 46m
Deal found 10/30$213
Tue 12/17:39 pm -
1 stop16h 27m
Tue 12/86:20 pm -
1 stop18h 48m
Deal found 11/3$218
Wed 11/186:25 am -
1 stop12h 17m
Wed 11/251:20 pm -
1 stop20h 12m
Deal found 11/2$220

Find flight deals from Detroit to St. Louis

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$150
(Kiwi.com)

One-way from

$79
(Kiwi.com)

Popular in

January

Cheapest in

September

Average price

$405

Good round-trip deal

$316 or less

Good one-way deal

$189 or less
Provider with most accurate pricing for Detroit Metropolitan Wayne County-Lambert-St Louis flight deals.
Provider most trusted by Cheapflights users for Detroit Metropolitan Wayne County-Lambert-St Louis flights.
From Detroit Metropolitan Wayne County to Lambert-St Louis
One-way flight from Detroit Metropolitan Wayne County to Lambert-St Louis
Highest demand for flights based on searches. 7% potential increase in price ($31 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in November 2026
Price to beat on a round-trip flight from Detroit Metropolitan Wayne County to Lambert-St Louis.
Price to beat on a one-way flight from Detroit Metropolitan Wayne County to Lambert-St Louis.

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Detroit Metropolitan Wayne County Airport to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitSt. Louis

DTW Detroit Metropolitan Wayne County - STL Lambert-St Louis

DTWSTL

Detroit Metropolitan Wayne County

Fri 12/18

7:51 am-3:26 pm

1 stop8h 35m

Lambert-St Louis

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$140

DetroitSt. Louis

DTW Detroit Metropolitan Wayne County - STL Lambert-St Louis

DTWSTL

Detroit Metropolitan Wayne County

Wed 12/16

12:07 pm-12:41 am

2 stops37h 34m

Lambert-St Louis

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$142

DetroitSt. Louis

DTW Detroit Metropolitan Wayne County - STL Lambert-St Louis

DTWSTL

Detroit Metropolitan Wayne County

Wed 12/16

6:55 am-7:45 am

Nonstop1h 50m

Lambert-St Louis

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$158

DetroitSt. Louis

DTW Detroit Metropolitan Wayne County - STL Lambert-St Louis

DTWSTL

Detroit Metropolitan Wayne County

Fri 11/27

8:15 pm-9:00 pm

Nonstop1h 45m

Lambert-St Louis

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$158

DetroitSt. Louis

DTW Detroit Metropolitan Wayne County - STL Lambert-St Louis

DTWSTL

Detroit Metropolitan Wayne County

Fri 12/18

8:15 pm-9:00 pm

Nonstop1h 45m

Lambert-St Louis

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$158
Quickest round-trip

DetroitSt. Louis

DTW Detroit Metropolitan Wayne County - STL Lambert-St Louis

DTWSTL

Detroit Metropolitan Wayne County

Thu 1/21

5:15 pm-5:55 pm

Nonstop1h 40m

Lambert-St Louis

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$158

DetroitSt. Louis

DTW Detroit Metropolitan Wayne County - STL Lambert-St Louis

DTWSTL

Detroit Metropolitan Wayne County

Wed 11/25

9:00 pm-6:55 am

2 stops10h 55m

Lambert-St Louis

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$179

DetroitSt. Louis

DTW Detroit Metropolitan Wayne County - STL Lambert-St Louis

DTWSTL

Detroit Metropolitan Wayne County

Sun 11/22

8:15 pm-9:00 pm

Nonstop1h 45m

Lambert-St Louis

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$186

DetroitSt. Louis

DTW Detroit Metropolitan Wayne County - STL Lambert-St Louis

DTWSTL

Detroit Metropolitan Wayne County

Sun 12/20

6:40 am-7:35 am

Nonstop1h 55m

Lambert-St Louis

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$186

DetroitSt. Louis

DTW Detroit Metropolitan Wayne County - STL Lambert-St Louis

DTWSTL

Detroit Metropolitan Wayne County

Tue 12/15

6:20 pm-7:10 pm

Nonstop1h 50m

Lambert-St Louis

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$193

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 22 resultsSorted by cheapest first
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Compare providers for flights from Detroit to St. Louis

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to St. Louis in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Detroit Metropolitan Wayne County Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit Metropolitan Wayne County Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit Metropolitan Wayne County Airport-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit Metropolitan Wayne County Airport-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Detroit Metropolitan Wayne County Airport-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Detroit to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Detroit with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Detroit Metropolitan Wayne County Airport to St. Louis

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

The price you pay for your flight from Detroit Metropolitan Wayne County Airport to St. Louis may vary depending on when you book. For the best chance of a lower fare, look to book 34 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to St. Louis (average of $299). Flying from Detroit Metropolitan Wayne County Airport to St. Louis in January is currently the most expensive (average of $479). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DTW to STL?

Unlike in the morning, when flights are generally more expensive, you can save up to 21% on flights from Detroit Metropolitan Wayne County Airport to St. Louis by exploring options for tickets at noon.

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

Travelers seeking maximum savings on their Detroit Metropolitan Wayne County Airport to St. Louis flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Detroit Metropolitan Wayne County Airport to St. Louis?

Airfare is below average for this route at the moment.

Detroit Metropolitan Wayne County Airport to St. Louis flights typically cost between $296 and $571 in December.
The cheapest round-trip price found within the last 5 days was $150 on Frontier (Dec 1-Dec 4).

The best insider tips for Detroit Metropolitan Wayne County Airport to St. Louis flights

Cheapflights partnered with top experts to bring you the best recommendations for your Detroit Metropolitan Wayne County Airport to St. Louis trip
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on DTW

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Taryn White

Taryn White

Expert on STL

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown Southwest,Delta, andFrontier from Detroit Metropolitan Wayne County Airport to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Related info for your journey

  • What airports do I use to fly from Detroit to St. Louis?

    If you book a flight from Detroit to St. Louis, you will be flying from Detroit Metropolitan Wayne County to Lambert-St Louis. Flights to Lambert-St Louis (STL) from Detroit Metropolitan Wayne County (DTW) take 1h 40m for a nonstop flight. There are 11 flights from Detroit Metropolitan Wayne County to St. Louis per day from 3 airlines.

  • How long is the flight from Detroit Metropolitan Wayne County Airport to St. Louis?

    For as low as $315, Delta can have you in St. Louis from Detroit Metropolitan Wayne County Airport in 1h 50m. Airlines will cover a distance of 439 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Detroit Metropolitan Wayne County Airport to St. Louis round-trip?

    Our cheapest airline available from Detroit Metropolitan Wayne County Airport to St. Louis is Delta. Our recent data shows that you can find tickets from as low as $177 on this airline. Additional options worth looking into are Frontier and Southwest, starting at $181 and $215 round-trip. You may be able to fly from Detroit Metropolitan Wayne County Airport to St. Louis for 54% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Detroit Metropolitan Wayne County Airport to St. Louis one-way?

    One-way options have recently been found by users for as low as $97 on Frontier. Other airlines that offer cheap prices include Southwest from $107 and Delta from $156 one-way.

  • What are the most reliable airlines from Detroit Metropolitan Wayne County Airport to St. Louis?

    No one likes to see their flight delayed. When booking a flight from Detroit Metropolitan Wayne County Airport to St. Louis consider choosing Sun Country Air (100%), WestJet (89%) or Korean Air (89%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Detroit Metropolitan Wayne County Airport to St. Louis?

    On average you can expect to pay $353 for a flight from Detroit Metropolitan Wayne County Airport to St. Louis. The cheapest flight overall is $122 while the most popular route, (Detroit Metropolitan Wayne County - Lambert-St Louis) is currently priced at $281.

  • Can I find deals for flights from Detroit to St. Louis that include hotel bookings?

    Yes. In addition to deals on Detroit to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Detroit to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Detroit to St. Louis.

  • Can I find deals for business class flights from Detroit to St. Louis?

    Yes. Cheapflights offers flight deals from Detroit to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, September is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to St. Louis (average of $299). Flying from Detroit Metropolitan Wayne County Airport to St. Louis in January is currently the most expensive (average of $479). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Fairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Chesterfield
Edwardsville
Glencoe

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Detroit to St. Louis

Top 3 airlines flying from Detroit to St. Louis

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$177Average$403FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$181Average$348FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$215Average$363FlexibilityNo cancel feeOn-time63%

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