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$65+ Cheap flights from Detroit to St. Louis (DTT - 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — STL
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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The best prices from Detroit All airports to Lambert-St Louis are usually found in August or March, booked 79 days in advance, depart on a Thursday or Saturday and return on a Wednesday

Cheap flight deals from Detroit to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) 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 January 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$130
(FlightHub)

One-way from

$65
(Mytrip)

Popular in

September

Cheapest in

August

Average price

$314

Good round-trip deal

$299 or less

Good one-way deal

$209 or less
Provider with most accurate pricing for Detroit (DTT)-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Detroit (DTT)-Lambert-St Louis flights.
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From Detroit (DTT) to Lambert-St Louis
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One-way flight from Detroit (DTT) to Lambert-St Louis
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Highest demand for flights based on searches. 6% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Price to beat on a round-trip flight from Detroit (DTT) to Lambert-St Louis.
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Price to beat on a one-way flight from Detroit (DTT) to Lambert-St Louis.
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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 January 21, 2025.

This FlightHub deal was found by Cheapflights users on 1/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/29:14 pmDTW - STL
1 stop13h 02mFrontier
Tue 2/45:05 pmSTL - DTW
1 stop19h 56mFrontier
Deal found 1/19$130
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/199:40 pmDTW - STL
1 stop18h 02mMultiple Airlines
Wed 2/265:20 pmSTL - DTW
1 stop23h 31mMultiple Airlines
Deal found 1/20$163
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/38:55 pmDTW - STL
2 stops18h 47mSpirit Airlines
Tue 3/115:38 pmSTL - DTW
2 stops23h 56mSpirit Airlines
Deal found 1/20$212
This Delta deal was found by Cheapflights users on 1/20. 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 2/138:55 pmDTW - STL
Nonstop1h 54mDelta
Tue 2/186:43 amSTL - DTW
Nonstop1h 37mDelta
Deal found 1/20$245
This Southwest deal was found by Cheapflights users on 1/20. 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 2/2711:55 amDTW - STL
Nonstop1h 35mSouthwest
Mon 3/38:25 amSTL - DTW
Nonstop1h 30mSouthwest
Deal found 1/20$259
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 2/136:30 amDTW - STL
1 stop10h 36mAmerican Airlines
Tue 2/183:10 pmSTL - DTW
1 stop7h 00mAmerican Airlines
Deal found 1/20$263
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/165:40 amDTW - STL
2 stops7h 40mUnited Airlines
Sat 4/195:33 pmSTL - DTW
1 stop3h 44mUnited Airlines
Deal found 1/20$297

Find flights from Detroit to St. Louis within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Sun 2/2

9:14 pm-9:16 am

1 stop13h 02m

Lambert-St Louis

Tue 2/4

5:05 pm-2:01 pm

1 stop19h 56m

$130

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Wed 2/19

9:40 pm-2:42 pm

1 stop18h 02m

Lambert-St Louis

Wed 2/26

5:20 pm-5:51 pm

1 stop23h 31m

$163

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Mon 3/3

8:55 pm-2:42 pm

2 stops18h 47m

Lambert-St Louis

Tue 3/11

5:38 pm-6:34 pm

2 stops23h 56m

$212

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Tue 2/18

8:40 am-9:36 am

Nonstop1h 56m

Lambert-St Louis

Tue 2/25

11:50 am-2:27 pm

Nonstop1h 37m

$245

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Tue 2/18

11:40 am-12:20 pm

Nonstop1h 40m

Lambert-St Louis

Thu 2/20

2:20 pm-8:05 pm

1 stop4h 45m

$255

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Thu 2/13

6:30 am-4:06 pm

1 stop10h 36m

Lambert-St Louis

Tue 2/18

3:10 pm-11:10 pm

1 stop7h 00m

$263

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Wed 4/16

5:40 am-12:20 pm

2 stops7h 40m

Lambert-St Louis

Sat 4/19

5:33 pm-10:17 pm

1 stop3h 44m

$297

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Tue 3/11

2:43 pm-9:16 am

1 stop19h 33m

$65

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Wed 2/26

9:40 pm-2:42 pm

1 stop18h 02m

$90

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Fri 3/7

10:13 pm-11:34 am

1 stop14h 21m

$107

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 14 results
1
2

Compare providers for flights from Detroit to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars

*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-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-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit-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-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
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.

Travel insights for flights from Detroit to St. Louis

Get recent, data-driven insights about flights from Detroit to St. Louis including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Detroit 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 January 17, 2025.

The price you pay for your flight from Detroit to St. Louis may vary depending on when you book. For the best chance of a lower fare, look to book 79 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 to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Detroit to St. Louis (average of $311). Flying from Detroit 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 DTT 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 January 21, 2025.

When flying from Detroit to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 25% versus a flight at noon.

Weekly flight availability from Detroit 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 January 21, 2025.

The most flights from DTT to STL are scheduled on a Monday (14 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 January 21, 2025.
Read reviews from past customers who have flown Delta, United Airlines and Southwest from Detroit to St. Louis. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Spirit Airlines
6.3
Okay
8,116 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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?

    You will need to book a flight from Detroit All airports to Lambert-St Louis if you want to fly from Detroit to St. Louis. At least 5 different airlines have flights from All airports (DTT) to Lambert-St Louis (STL) on a regular basis. There are 12 flights to St. Louis from the Detroit airport per day. If you manage to book one that is nonstop, then you can expect the flight time from DTT to STL to be around 1h 35m.

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

    Our cheapest airline available from Detroit to St. Louis is Frontier. Our recent data shows that you can find tickets from as low as $130 on this airline. Additional options worth looking into are Spirit Airlines and Southwest, starting at $212 and $245 round-trip. You may be able to fly from Detroit to St. Louis for 60% less than the average price by searching for these airlines.

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

    $65 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and Southwest, with prices starting from $90 and $123, respectively.

  • What are the most reliable airlines from Detroit to St. Louis?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Detroit to St. Louis on time: Southwest (86%), SkyWest Airlines (78%), Korean Air (77%).

  • What are the cheapest flights from Detroit to St. Louis?

    While on average a flight from Detroit to St. Louis is generally $309, our data shows the cheapest flight currently is $149. When looking at the most popular route, (Detroit Metropolitan Wayne County - Lambert-St Louis), you can expect to pay $245 for that flight.

  • 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 to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Detroit to St. Louis (average of $311). Flying from Detroit 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 Detroit?

Book flights to Detroit if you plan to visit one of these locations
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Alton
Farmington
Chesterfield

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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$124Average$192FlexibilityNo cancel feeOn-time62%
DeltaCheapest$199Average$301FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$201Average$277FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$246Average$322FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$259Average$476FlexibilityNo cancel feeOn-time69%
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