$62+ 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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DTT
Jun 7 — Jun 141
Round-trip
1 adult, Economy
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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.Cheap flight deals from St. Louis to Detroit
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to DetroitExplore 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 May 8, 2026.
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 May 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 7/104:52 pm
STL
- DTW
1 stop6h 48m
Frontier
Tue 7/142:02 pm
DTW
- STL
1 stop19h 55m
Frontier
Deal found 5/6![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Wed 7/224:52 pm
STL
- DTW
1 stop6h 48m
Frontier
Sat 7/252:54 pm
DTW
- STL
1 stop27h 43m
Frontier
Deal found 5/5![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 7/64:52 pm
STL
- DTW
1 stop6h 48m
Frontier
Sun 7/122:02 pm
DTW
- STL
1 stop19h 55m
Frontier
Deal found 5/4![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/26:33 pm
STL
- DTW
1 stop5h 06m
Frontier
Tue 6/96:54 pm
DTW
- STL
1 stop14h 53m
Frontier
Deal found 5/5![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/55:27 pm
STL
- DTW
1 stop19h 15m
Frontier
Thu 6/112:02 pm
DTW
- STL
1 stop19h 50m
Frontier
Deal found 5/5![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/216:31 pm
STL
- DTW
1 stop21h 22m
Frontier
Thu 6/252:02 pm
DTW
- STL
1 stop19h 50m
Frontier
Deal found 5/5![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/286:33 pm
STL
- DTW
1 stop5h 05m
Frontier
Mon 6/16:05 pm
DTW
- STL
1 stop24h 28m
Frontier
Deal found 5/4![Frontier logo]()
$163
This Orbitz deal was found by Cheapflights users on 5/6. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/284:09 pm
STL
- DTW
1 stop18h 46m
Frontier
Tue 8/48:00 am
DTW
- STL
1 stop12h 23m
Frontier
Deal found 5/6![Frontier logo]()
$190
Best flights from St. Louis to DetroitDiscover carefully curated flight deals from St. Louis to Detroit that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 8, 2026.
Discover carefully curated flight deals from St. Louis to Detroit that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 8, 2026.
This Delta deal was found by Cheapflights users on 5/4. 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.
Tue 6/2310:20 am
STL
- DTW
Nonstop1h 35m
Delta
Tue 6/304:41 pm
DTW
- STL
Nonstop1h 42m
Delta
Deal found 5/4![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 5/7. 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.
Mon 6/14:00 pm
STL
- DTW
1 stop6h 30m
Southwest
Thu 6/48:15 pm
DTW
- STL
Nonstop1h 35m
Southwest
Deal found 5/7![Southwest logo]()
$223
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Tue 6/95:29 pm
STL
- DTW
1 stop5h 28m
United Airlines
Wed 6/1011:00 am
DTW
- STL
1 stop5h 46m
United Airlines
Deal found 5/7![United Airlines logo]()
$281
This Southwest deal was found by Cheapflights users on 5/6. 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 5/2810:15 am
STL
- DTW
2 stops8h 20m
Southwest
Mon 6/18:15 pm
DTW
- STL
Nonstop1h 40m
Southwest
Deal found 5/6![Southwest logo]()
$228
This Delta deal was found by Cheapflights users on 5/3. 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.
Wed 6/101:59 pm
STL
- DTW
Nonstop1h 36m
Delta
Sat 6/138:50 am
DTW
- STL
Nonstop1h 42m
Delta
Deal found 5/3![Delta logo]()
$279
This Southwest deal was found by Cheapflights users on 5/7. 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.
Wed 7/293:25 pm
STL
- DTW
Nonstop1h 30m
Southwest
Sat 8/15:25 pm
DTW
- STL
Nonstop1h 35m
Southwest
Deal found 5/7![Southwest logo]()
$285
This Delta deal was found by Cheapflights users on 5/6. 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 5/2810:19 am
STL
- DTW
Nonstop1h 31m
Delta
Sun 5/317:01 am
DTW
- STL
1 stop4h 31m
Delta
Deal found 5/6![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 5/3. 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.
Wed 6/106:55 am
STL
- DTW
1 stop4h 40m
Southwest
Sat 6/137:10 am
DTW
- STL
Nonstop1h 35m
Southwest
Deal found 5/3![Southwest logo]()
$289
This Southwest deal was found by Cheapflights users on 5/7. 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 9/103:45 pm
STL
- DTW
1 stop5h 20m
Southwest
Sun 9/136:35 am
DTW
- STL
Nonstop1h 35m
Southwest
Deal found 5/7![Southwest logo]()
$297
This Southwest deal was found by Cheapflights users on 5/3. 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.
Sun 5/243:30 pm
STL
- DTW
2 stops6h 55m
Southwest
Mon 5/258:30 pm
DTW
- STL
1 stop3h 15m
Southwest
Deal found 5/3![Southwest logo]()
$312
Last-minute flights from St. Louis to DetroitDiscover last-minute flight deals from St. Louis to Detroit. Data last updated May 8, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Detroit. Data last updated May 8, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 5/3. 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.
Tue 5/2610:30 am
STL
- DTW
Nonstop1h 30m
Southwest
Tue 5/267:10 pm
DTW
- STL
Nonstop1h 45m
Southwest
Deal found 5/3![Southwest logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/286:33 pm
STL
- DTW
1 stop5h 05m
Frontier
Mon 6/16:05 pm
DTW
- STL
1 stop24h 28m
Frontier
Deal found 5/4![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 6/15:27 pm
STL
- DTW
1 stop18h 37m
Frontier
Thu 6/46:50 am
DTW
- STL
1 stop27h 05m
Frontier
Deal found 5/7![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/26:33 pm
STL
- DTW
1 stop5h 06m
Frontier
Tue 6/96:54 pm
DTW
- STL
1 stop14h 53m
Frontier
Deal found 5/5![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/55:27 pm
STL
- DTW
1 stop19h 15m
Frontier
Thu 6/112:02 pm
DTW
- STL
1 stop19h 50m
Frontier
Deal found 5/5![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/55:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Fri 6/125:38 pm
DTW
- STL
1 stop16h 14m
Frontier
Deal found 5/3![Frontier logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/216:31 pm
STL
- DTW
1 stop21h 22m
Frontier
Thu 6/252:02 pm
DTW
- STL
1 stop19h 50m
Frontier
Deal found 5/5![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 6/256:31 pm
STL
- DTW
1 stop21h 22m
Frontier
Tue 7/72:02 pm
DTW
- STL
1 stop19h 55m
Frontier
Deal found 5/6![Frontier logo]()
$194
One-way flights from St. Louis to DetroitSearch for one-way flight options from St. Louis to Detroit. Find affordable one-way fares based on user searches. Data last updated May 8, 2026.
Search for one-way flight options from St. Louis to Detroit. Find affordable one-way fares based on user searches. Data last updated May 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 7/236:33 pm
STL
- DTW
1 stop21h 17m
Frontier
Deal found 5/6![Frontier logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/15:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 5/4![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/155:06 pm
STL
- DTW
1 stop19h 01m
Frontier
Deal found 5/4![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 7/126:33 pm
STL
- DTW
1 stop21h 17m
Frontier
Deal found 5/6![Frontier logo]()
$94
This Priceline deal was found by Cheapflights users on 5/5. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:33 pm
STL
- DTW
1 stop5h 06m
Frontier
Deal found 5/5![Frontier logo]()
$95
This Southwest deal was found by Cheapflights users on 5/3. 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.
Wed 6/247:40 pm
STL
- DTW
Nonstop1h 30m
Southwest
Deal found 5/3![Southwest logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 5/266:33 pm
STL
- DTW
2 stops16h 16m
Frontier
Deal found 5/5![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/286:31 pm
STL
- DTW
1 stop21h 22m
Frontier
Deal found 5/4![Frontier logo]()
$104
This Southwest deal was found by Cheapflights users on 5/6. 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.
Wed 5/276:45 pm
STL
- DTW
Nonstop1h 30m
Southwest
Deal found 5/6![Southwest logo]()
$105
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Sat 5/305:29 pm
STL
- DTW
1 stop5h 28m
United Airlines
Deal found 5/7![United Airlines logo]()
$106
This Southwest deal was found by Cheapflights users on 5/8. 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.
Sat 5/307:00 pm
STL
- DTW
Nonstop1h 30m
Southwest
Deal found 5/8![Southwest logo]()
$107
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 May 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $121 (Kiwi.com) |
One-way from | $62 (Kiwi.com) |
Popular in | February |
Cheapest in | July |
Average price | $322 |
Good round-trip deal | $373 or less |
Good one-way deal | $185 or less |
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 May 8, 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
Cheapest round-trip
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Tue 6/23
10:20 am-12:55 pm
Nonstop1h 35m
Detroit Metropolitan Wayne County
Tue 6/30
4:41 pm-5:23 pm
Nonstop1h 42m
$197
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Mon 6/1
4:00 pm-11:30 pm
1 stop6h 30m
Detroit Metropolitan Wayne County
Thu 6/4
8:15 pm-8:50 pm
Nonstop1h 35m
$223
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Thu 5/28
10:15 am-7:35 pm
2 stops8h 20m
Detroit Metropolitan Wayne County
Mon 6/1
8:15 pm-8:55 pm
Nonstop1h 40m
$228
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Wed 6/10
1:59 pm-4:35 pm
Nonstop1h 36m
Detroit Metropolitan Wayne County
Sat 6/13
8:50 am-9:32 am
Nonstop1h 42m
$279
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Tue 6/9
5:29 pm-11:57 pm
1 stop5h 28m
Detroit Metropolitan Wayne County
Wed 6/10
11:00 am-3:46 pm
1 stop5h 46m
$281
Quickest round-trip
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Wed 7/29
3:25 pm-5:55 pm
Nonstop1h 30m
Detroit Metropolitan Wayne County
Sat 8/1
5:25 pm-6:00 pm
Nonstop1h 35m
$285
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Wed 6/10
6:55 am-12:35 pm
1 stop4h 40m
Detroit Metropolitan Wayne County
Sat 6/13
7:10 am-7:45 am
Nonstop1h 35m
$289
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Thu 5/28
10:19 am-12:50 pm
Nonstop1h 31m
Detroit Metropolitan Wayne County
Sun 5/31
7:01 am-10:32 am
1 stop4h 31m
$297
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Thu 9/10
3:45 pm-10:05 pm
1 stop5h 20m
Detroit Metropolitan Wayne County
Sun 9/13
6:35 am-7:10 am
Nonstop1h 35m
$297
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Sun 5/24
3:30 pm-11:25 pm
2 stops6h 55m
Detroit Metropolitan Wayne County
Mon 5/25
8:30 pm-10:45 pm
1 stop3h 15m
$312
Showing 1-10 of 22 resultsSorted by cheapest first
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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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.
STL-DTT
STL-DTW
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
STL-DTT
STL-DTW
How far ahead should I book a flight from St. Louis to Detroit?
Booking 61 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, 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 May 8, 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 62% 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 May 2, 2026.
Travelers seeking maximum savings on their St. Louis to Detroit flight should consider departing on Sunday 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.
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 May 8, 2026.
The most flights from STL to DTT are scheduled on a Tuesday (18 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).
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 May 8, 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.
Overall
7.9
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
Traveling to a place near Detroit?
Book flights to Detroit if you plan to visit one of these locationsRoseville
Port Huron
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Top 4 airlines flying from St. Louis to Detroit
Discover the top 4 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 May 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$37 | Average$78 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$69 | Average$295 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$80 | Average$275 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$119 | Average$282 | FlexibilityNo cancel fee | On-time63% |