HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Detroit

$65+ 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DTT
nov. 28 — dic. 51
vie. 11/28
vie. 12/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Detroit with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Lambert-St Louis to Detroit All airports are usually found in August or July, booked 50 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap 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 octubre 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$120
(Gotogate)

One-way from

$65
(Mytrip)

Popular in

October

Cheapest in

August

Average price

$385

Good round-trip deal

$350 or less

Good one-way deal

$218 or less
Provider with most accurate pricing for Lambert-St Louis-Detroit (DTT) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Detroit (DTT) flights.
Search Deals
From Lambert-St Louis to Detroit (DTT)
Search Deals
One-way flight from Lambert-St Louis to Detroit (DTT)
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to Detroit (DTT).
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to Detroit (DTT).
Search Deals

Find 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 octubre 29, 2025.

This Gotogate deal was found by Cheapflights users on 10/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/137:45 pmSTL - DTW
1 stop19h 34mFrontier
lun. 11/175:14 pmDTW - STL
1 stop16h 53mFrontier
Deal found 10/27$120
This Booking.com deal was found by Cheapflights users on 10/29. 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.
jue. 11/1311:07 amSTL - DTW
1 stop5h 09mFrontier
dom. 11/1612:24 pmDTW - STL
1 stop25h 53mFrontier
Deal found 10/29$155
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/137:43 pmSTL - DTW
1 stop19h 36mMultiple Airlines
dom. 1/113:15 pmDTW - STL
1 stop8h 18mMultiple Airlines
Deal found 10/28$156
This Mytrip deal was found by Cheapflights users on 10/27. 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.
jue. 11/611:07 amSTL - DTW
1 stop5h 09mFrontier
lun. 11/105:14 pmDTW - STL
1 stop16h 53mFrontier
Deal found 10/27$172
This Frontier deal was found by Cheapflights users on 10/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/611:07 amSTL - DTW
1 stop5h 09mFrontier
dom. 11/99:15 pmDTW - STL
1 stop12h 52mFrontier
Deal found 10/28$176
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
jue. 12/412:04 pmSTL - DTW
1 stop6h 48mMultiple Airlines
dom. 12/72:50 pmDTW - STL
1 stop20h 02mMultiple Airlines
Deal found 10/27$179
This Booking.com deal was found by Cheapflights users on 10/27. 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.
mié. 11/127:45 pmSTL - DTW
1 stop19h 34mFrontier
mié. 11/196:29 pmDTW - STL
1 stop5h 32mFrontier
Deal found 10/27$181
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/145:05 pmSTL - DTW
1 stop16h 42mFrontier
dom. 11/1612:24 pmDTW - STL
1 stop22h 16mFrontier
Deal found 10/28$185
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
jue. 12/412:04 pmSTL - DTW
1 stop6h 48mMultiple Airlines
lun. 12/86:12 pmDTW - STL
1 stop29h 21mMultiple Airlines
Deal found 10/27$191
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
jue. 12/412:04 pmSTL - DTW
1 stop19h 22mFrontier
lun. 12/810:36 amDTW - STL
2 stops12h 57mFrontier
Deal found 10/27$192

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 octubre 29, 2025.
Use the filters below to find and compare flights from St. Louis to Detroit that are best for you.

Fly from

St. Louis

Fly to

Detroit

Route

Depart

Return

Price

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

lun. 12/15

3:30 pm-8:07 am

2 stops39h 37m

Detroit Metropolitan Wayne County

lun. 12/22

6:06 pm-9:40 am

1 stop16h 34m

$225

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

jue. 12/18

8:00 am-10:30 am

Nonstop1h 30m

Detroit Metropolitan Wayne County

lun. 12/22

9:20 pm-10:00 pm

Nonstop1h 40m

$255

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

jue. 11/13

7:02 pm-5:12 pm

2 stops21h 10m

Detroit Metropolitan Wayne County

dom. 11/16

5:15 am-6:36 pm

2 stops14h 21m

$273

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

mar. 3/3

7:00 am-3:57 pm

1 stop7h 57m

Detroit Metropolitan Wayne County

mié. 3/4

9:10 am-10:59 pm

1 stop14h 49m

$277

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

vie. 12/12

7:50 am-4:50 pm

1 stop8h 00m

Detroit Metropolitan Wayne County

lun. 12/15

6:45 pm-7:25 pm

Nonstop1h 40m

$288

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

sáb. 12/6

1:35 pm-4:05 pm

Nonstop1h 30m

Detroit Metropolitan Wayne County

dom. 12/7

8:50 pm-9:30 pm

Nonstop1h 40m

$300

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

jue. 2/12

3:10 pm-10:00 pm

1 stop5h 50m

Detroit Metropolitan Wayne County

lun. 2/16

5:30 am-5:15 pm

2 stops12h 45m

$318

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

lun. 2/23

6:40 pm-9:10 pm

Nonstop1h 30m

Detroit Metropolitan Wayne County

vie. 2/27

4:10 pm-4:50 pm

Nonstop1h 40m

$319

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

vie. 12/5

6:10 pm-8:40 pm

Nonstop1h 30m

Detroit Metropolitan Wayne County

dom. 12/7

8:50 pm-9:30 pm

Nonstop1h 40m

$319

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

mié. 2/11

11:22 am-5:52 pm

1 stop5h 30m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 20 results
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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 St. Louis-Detroit flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Detroit flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Detroit. Price data was last updated on October 24, 2025.

Booking 49 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 month to book a flight from St. Louis to Detroit?

Currently, June is the cheapest month in which you can book a flight from St. Louis to Detroit (average of $48). Flying from St. Louis to Detroit in December is currently the most expensive (average of $284). 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 octubre 29, 2025.

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 75% on airfare.

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 October 26, 2025.

Travelers seeking maximum savings on their St. Louis to Detroit flight should consider departing on Thursday evenings when fares are most often at their lowest. Wednesday at noon 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 St. Louis to Detroit?

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 octubre 29, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and Spirit Airlines 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.
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,994 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,114 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 10 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 30m. Fly via Southwest to get the fastest option. The distance between St. Louis and Detroit is about 439 mi. All flights are typically nonstop.

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

    Currently priced at $41, Spirit Airlines will fly you from St. Louis to Detroit and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and Delta - these airlines can fly you to your destination from $119 and $121, respectively. These flights start at 85% lower than the current average price 3 months from now.

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

    Consider Korean Air (98%), WestJet (97%) or KLM (96%) 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 $159. While the most popular route (Lambert-St Louis - Detroit Metropolitan Wayne County) can be booked for $156 on average, our data indicates $449 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, June is the cheapest month in which you can book a flight from St. Louis to Detroit (average of $48). Flying from St. Louis to Detroit in December is currently the most expensive (average of $284). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Detroit

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to O'Hare Intl flights
St. Louis to O'Hare Intl flights
St. Louis to Detroit flights
Kansas City to Midway flights
Kansas City to Detroit flights
St. Louis to Midway flights
Columbia to O'Hare Intl flights
Cape Girardeau to O'Hare Intl flights
Springfield to O'Hare Intl flights
Kansas City to Grand Rapids flights
Springfield to Midway flights
St. Louis to Flint flights
Joplin to O'Hare Intl flights
Kansas City to Lansing flights
Kansas City to Bay City flights
St. Louis to Grand Rapids flights
St. Louis to Traverse City flights
Kansas City to Pellston flights
Springfield to Detroit flights
Kansas City to Flint flights
Joplin to Detroit flights
St. Louis to Marquette flights
Kansas City to Traverse City flights
St. Louis to Kalamazoo flights
Quincy to O'Hare Intl flights
Kansas City to South Bend flights
Springfield to Flint flights
Springfield to Grand Rapids flights
St. Louis to Lansing flights
Springfield to Kalamazoo flights
Springfield to Lansing flights
Kansas City to Hancock flights
Kansas City to Kalamazoo flights
St. Louis to Pellston flights
Springfield to Bay City flights
Kansas City to Iron Mountain flights
Springfield to Traverse City flights
Kansas City to Escanaba flights
St. Louis to Sault Ste. Marie flights
Columbia to Grand Rapids flights
Kansas City to Sault Ste. Marie flights
Joplin to Lansing flights
Branson to O'Hare Intl flights
Springfield to Muskegon flights
Columbia to Lansing flights
St. Louis to Muskegon flights
Joplin to Traverse City flights
St. Louis to Iron Mountain flights
St. Louis to Escanaba flights
Kansas City to Muskegon flights

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 octubre 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$41Average$80FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$119Average$291FlexibilityNo cancel feeOn-time63%
DeltaCheapest$121Average$300FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.