St. Louis

$28+ Cheap flights from Detroit Metropolitan Wayne County Airport to St. Louis (DTW - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — STL
Aug 3 — Aug 101
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Cheapflights Tip: The best prices from Detroit Metropolitan Wayne County to Lambert-St Louis are usually found in July or June, booked 40 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Detroit to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTW) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$60
(Booking.com)

One-way from

$28
(FlightHub)

Popular in

October

Cheapest in

July

Average price

$179

Good round-trip deal

$111 or less

Good one-way deal

$88 or less
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. 10% potential increase in price ($33 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in July 2025
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.

Find flight deals from Detroit to St. Louis

Cheapest flights from Detroit to St. Louis
Explore the most affordable flight options available from Detroit to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Booking.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/291:00 pmDTW - STL
Nonstop1h 32mSpirit Airlines
Sun 8/312:30 pmSTL - DTW
Nonstop1h 30mSpirit Airlines
Deal found 7/29$60
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/288:55 amDTW - STL
Nonstop1h 37mDelta
Thu 8/286:00 pmSTL - DTW
Nonstop1h 30mDelta
Deal found 7/29$119
This Trip.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/281:00 pmDTW - STL
Nonstop1h 32mMultiple Airlines
Sun 8/3110:17 amSTL - DTW
1 stop6h 43mMultiple Airlines
Deal found 7/28$142
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2812:30 pmDTW - STL
1 stop4h 15mSouthwest
Sun 8/319:55 amSTL - DTW
Nonstop1h 30mSouthwest
Deal found 7/29$167
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/281:07 pmDTW - STL
1 stop8h 19mAmerican Airlines
Wed 10/297:16 amSTL - DTW
1 stop11h 03mAmerican Airlines
Deal found 7/26$171

Cheapflights Fare Finder

 
Customize your flight search to find flights from Detroit to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
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

Detroit

Fly to

St. Louis

Route

Depart

Return

Price

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Fri 8/29

1:00 pm-1:32 pm

Nonstop1h 32m

Lambert-St Louis

Sun 8/31

2:30 pm-5:00 pm

Nonstop1h 30m

$60

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Thu 8/28

8:55 am-9:32 am

Nonstop1h 37m

Lambert-St Louis

Thu 8/28

6:00 pm-8:30 pm

Nonstop1h 30m

$119

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Thu 8/28

1:00 pm-1:32 pm

Nonstop1h 32m

Lambert-St Louis

Sun 8/31

10:17 am-6:00 pm

1 stop6h 43m

$142

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Thu 8/28

12:30 pm-3:45 pm

1 stop4h 15m

Lambert-St Louis

Sun 8/31

9:55 am-12:25 pm

Nonstop1h 30m

$167

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Sat 9/13

6:45 am-3:24 pm

1 stop9h 39m

Lambert-St Louis

Wed 9/17

7:23 am-6:47 pm

1 stop10h 24m

$171

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Thu 8/28

1:00 pm-1:32 pm

Nonstop1h 32m

$28

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Sun 9/28

8:55 am-9:33 am

Nonstop1h 38m

$60

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Thu 9/18

5:40 am-11:30 am

1 stop6h 50m

$80

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Tue 9/2

1:02 pm-10:17 pm

1 stop10h 15m

$91

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Sat 8/30

2:10 pm-7:27 pm

1 stop6h 17m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 12 results
1
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The best insider tips for Detroit Metropolitan Wayne County Airport to St. Louis flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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.
Cheapflights partnered with top experts to bring you the best recommendations for your Detroit Metropolitan Wayne County Airport to St. Louis trip
Airports
DTW

At DTW, security lines are generally short, with waits rarely exceeding 10 minutes in McNamara Terminal, making it efficient for business travelers.

Read more about DTWby Brandon Schultz
STL

Use the MetroLink light rail from STL for a convenient, economical ride to downtown St. Louis, taking about 40 minutes.

Read more about STLby Taryn White
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on DTW

Brandon Schultz

Brandon Schultz

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.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

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.

Read more

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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?

Use this chart to determine the optimal time to book a round-trip flight from Detroit to St. Louis. Price data was last updated on July 25, 2025.

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 40 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, August is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to St. Louis (average of $311). Flying from Detroit Metropolitan Wayne County Airport to St. Louis in March is currently the most expensive (average of $356). 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?

Find hourly flight availability from Detroit to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 8% on flights from Detroit Metropolitan Wayne County Airport to St. Louis by exploring options for tickets in the afternoon.

Weekly flight availability from Detroit Metropolitan Wayne County Airport to St. Louis

Explore weekly flight availability from Detroit to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 29, 2025.

The most flights from DTW to STL are scheduled on a Monday (17 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated July 29, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines 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.

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
8.0
Very good

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Detroit to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • 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 32m for a nonstop flight. There are 13 flights from Detroit Metropolitan Wayne County to St. Louis per day from 5 airlines.

  • 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 Spirit Airlines. Our recent data shows that you can find tickets from as low as $60 on this airline. Additional options worth looking into are Delta and Southwest, starting at $119 and $167 round-trip. You may be able to fly from Detroit Metropolitan Wayne County Airport to St. Louis for 79% 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 $28 on Spirit Airlines. Other airlines that offer cheap prices include Delta from $60 and Southwest from $80 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 Aeromexico (91%), Spirit Airlines (84%) or Endeavor Airlines (83%) 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 $157 for a flight from Detroit Metropolitan Wayne County Airport to St. Louis. The cheapest flight overall is $38 while the most popular route, (Detroit Metropolitan Wayne County - Lambert-St Louis) is currently priced at $58.

  • 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, August is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to St. Louis (average of $311). Flying from Detroit Metropolitan Wayne County Airport to St. Louis in March is currently the most expensive (average of $356). 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
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Festus
Farmington

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Alternative routes for Detroit to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Detroit to St. Louis

Discover the top 5 airlines that operate flights from Detroit to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$29Average$90FlexibilityNo cancel feeOn-time65%
DeltaCheapest$149Average$310FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$149Average$299FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$179Average$277FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$340Average$528FlexibilityNo cancel feeOn-time69%

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