Detroit

$82+ Cheap flights from St. Louis to Detroit (STL - DTT)

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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DTT
Jul 24 — Jul 311
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Cheap flight deals from St. Louis to Detroit

Cheapest flights from St. Louis to Detroit
Explore the most affordable flight options available from St. Louis to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/174:57 pm
STL
-
DTW
1 stop6h 43m
Frontier
Sun 7/196:10 am
DTW
-
STL
1 stop12h 27m
Frontier
Deal found 6/23$166
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/74:57 pm
STL
-
DTW
1 stop6h 43m
Frontier
Mon 8/105:35 pm
DTW
-
STL
1 stop25h 02m
Frontier
Deal found 6/23$167
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:34 pm
STL
-
DTW
1 stop20h 54m
Frontier
Fri 7/245:35 pm
DTW
-
STL
1 stop16h 22m
Frontier
Deal found 6/20$169
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/204:57 pm
STL
-
DTW
1 stop6h 43m
Frontier
Tue 7/212:56 pm
DTW
-
STL
1 stop19h 01m
Frontier
Deal found 6/23$170
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:17 pm
STL
-
DTW
1 stop5h 47m
Frontier
Sat 8/226:40 pm
DTW
-
STL
1 stop23h 42m
Frontier
Deal found 6/21$171
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:34 pm
STL
-
DTW
1 stop21h 06m
Frontier
Sat 7/252:56 pm
DTW
-
STL
1 stop27h 41m
Frontier
Deal found 6/22$182
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:34 pm
STL
-
DTW
1 stop21h 06m
Frontier
Mon 7/275:35 pm
DTW
-
STL
1 stop25h 02m
Frontier
Deal found 6/23$189
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/254:57 pm
STL
-
DTW
1 stop6h 43m
Frontier
Mon 7/275:35 pm
DTW
-
STL
1 stop25h 02m
Frontier
Deal found 6/22$190
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:35 am
STL
-
DTW
1 stop27h 04m
Frontier
Mon 9/213:34 pm
DTW
-
STL
1 stop19h 06m
Frontier
Deal found 6/19$203
This Frontier deal was found by Cheapflights users on 6/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:45 pm
STL
-
DTW
1 stop10h 35m
Frontier
Wed 8/198:30 am
DTW
-
STL
1 stop10h 20m
Frontier
Deal found 6/22$205
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:17 pm
STL
-
DTW
2 stops17h 27m
Frontier
Thu 8/276:00 am
DTW
-
STL
1 stop12h 22m
Frontier
Deal found 6/23$208

Find flight deals from St. Louis to Detroit

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Detroit (DTT). 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 June 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$166
(Kiwi.com)

One-way from

$82
(Trip.com)

Popular in

February

Cheapest in

July

Average price

$405

Good round-trip deal

$364 or less

Good one-way deal

$261 or less
Provider with most accurate pricing for Lambert-St Louis-Detroit (DTT) flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Detroit (DTT) flights.
From Lambert-St Louis to Detroit (DTT)
One-way flight from Lambert-St Louis to Detroit (DTT)
Highest demand for flights based on searches. 20% potential increase in price ($84 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Average for round-trip flights in June 2026
Price to beat on a round-trip flight from Lambert-St Louis to Detroit (DTT).
Price to beat on a one-way flight from Lambert-St Louis to Detroit (DTT).

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Detroit 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 June 24, 2026.
Use the filters below to find and compare flights from St. Louis to Detroit that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 8/20

6:30 am-9:04 am

Nonstop1h 34m

Detroit Metropolitan Wayne County

Sat 8/22

8:05 pm-8:42 pm

Nonstop1h 37m

$247

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 8/5

5:55 am-12:20 pm

1 stop5h 25m

Detroit Metropolitan Wayne County

Mon 8/17

6:55 am-7:45 am

Nonstop1h 50m

$257

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Sat 8/8

7:50 am-5:40 pm

2 stops8h 50m

Detroit Metropolitan Wayne County

Mon 8/10

5:55 am-10:10 am

1 stop5h 15m

$272

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 8/20

10:10 am-8:50 pm

2 stops9h 40m

Detroit Metropolitan Wayne County

Sat 8/22

7:15 am-3:30 pm

2 stops9h 15m

$277

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Sun 7/19

6:30 am-9:04 am

Nonstop1h 34m

Detroit Metropolitan Wayne County

Sat 7/25

8:50 am-9:31 am

Nonstop1h 41m

$298

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Sun 7/12

6:15 pm-11:15 pm

1 stop4h 00m

Detroit Metropolitan Wayne County

Tue 7/14

6:30 pm-7:05 pm

Nonstop1h 35m

$308
Quickest round-trip

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 8/7

6:50 pm-9:20 pm

Nonstop1h 30m

Detroit Metropolitan Wayne County

Mon 8/10

2:40 pm-3:10 pm

Nonstop1h 30m

$310

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 7/24

6:58 pm-12:59 am

1 stop5h 01m

Detroit Metropolitan Wayne County

Sat 7/25

5:20 am-9:06 am

1 stop4h 46m

$318
Cheapest one-way
Quickest one-way

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Tue 8/4

7:20 pm-9:50 pm

Nonstop1h 30m

$118

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Tue 10/13

6:45 am-9:18 am

Nonstop1h 33m

$118

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/20

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from St. Louis to Detroit

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 St. Louis to Detroit in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice 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 St. Louis-Detroit flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Detroit flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Detroit flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Detroit 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 St. Louis-Detroit 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 St. Louis to Detroit

Have a flexible travel schedule? Discover the best time to fly to Detroit from St. Louis 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 St. Louis to Detroit

What is the cheapest month to book a flight from St. Louis to Detroit?

Currently, August is the cheapest month in which you can book a flight from St. Louis to Detroit (average of $27). Flying from St. Louis to Detroit in December is currently the most expensive (average of $217). 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 STL to DTT?

Find hourly flight availability from St. Louis to Detroit. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 24, 2026.

One of the essential ways to save on airfare from St. Louis to Detroit is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 66% on airfare.

Weekly flight availability from St. Louis to Detroit

Explore weekly flight availability from St. Louis to Detroit. 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 June 24, 2026.

The most flights from STL to DTT are scheduled on a Tuesday (19 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (9 on average).

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

How far ahead should I book a flight from St. Louis to Detroit?

Booking 63 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Detroit. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from St. Louis to Detroit?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Detroit. Price data was last updated on June 20, 2026.

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

Reviews of airlines servicing Detroit

Get insights into the airlines that provide service to Detroit. 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 Detroit. Reviews last updated June 24, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andJetBlue from St. Louis to Detroit to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Detroit. 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 St. Louis to Detroit?

    You will need to book a flight from Lambert-St Louis to Detroit All airports if you want to fly from St. Louis to Detroit. At least 3 different airlines have flights from Lambert-St Louis (STL) to All airports (DTT) on a regular basis. There are 14 flights to Detroit from the St. Louis airport per day. If you manage to book one that is nonstop, then you can expect the flight time from STL to DTT to be around 1h 30m.

  • How long is the flight from St. Louis to Detroit?

    There are many flights that can get you from St. Louis to Detroit in 1h 34m. Fly via Delta or Southwest to get the fastest option. The distance between St. Louis and Detroit is about 439 mi. This flight may include one or multiple stops.

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

    Currently priced at $80, Frontier will fly you from St. Louis to Detroit and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Southwest - these airlines can fly you to your destination from $88 and $119, respectively. These flights start at 76% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $77 on Southwest. Other airlines that offer cheap prices include Delta from $77 and Frontier from $89 one-way.

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

    Consider SkyWest Airlines (97%), Korean Air (93%) or Virgin Atlantic (90%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Detroit.

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

    Looking at all options, your cheapest flight can be booked for $109. While the most popular route (Lambert-St Louis - Detroit Metropolitan Wayne County) can be booked for $223 on average, our data indicates $427 when flying from St. Louis to Detroit.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Detroit 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 St. Louis to Detroit?

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Detroit (average of $27). Flying from St. Louis to Detroit in December is currently the most expensive (average of $217). 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
Roseville
Port Huron

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Top 3 airlines flying from St. Louis to Detroit

Discover the top 3 airlines that operate flights from St. Louis to Detroit. 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 June 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$80Average$250FlexibilityNo cancel feeOn-time62%
DeltaCheapest$88Average$337FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$119Average$319FlexibilityNo cancel feeOn-time63%

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