$64+ Cheap flights from St. Louis (STL) to Michigan
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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DTW
Feb 14 — Feb 211
1 adult, Economy
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Find cheap flights from St. Louis to Michigan 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 Michigan
Keep the following information in mind while searching for St. Louis to Michigan flight deals. Data was last updated January 15, 2026.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $128 (Frontier) |
One-way from | $64 (Priceline) |
Popular in | February |
Cheapest in | August |
Average price | $345 |
Good round-trip deal | $411 or less |
Good one-way deal | $239 or less |
Find flight deals from St. Louis to Michigan
Cheapest flights from St. Louis to MichiganExplore the most affordable flight options available from St. Louis to Michigan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.
Explore the most affordable flight options available from St. Louis to Michigan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.
This Frontier deal was found by Cheapflights users on 1/12. 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.
Wed 2/188:17 pm
STL
- DTW
1 stop10h 50m
Frontier
Wed 2/258:30 am
DTW
- STL
1 stop8h 23m
Frontier
Deal found 1/12![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 2/238:22 pm
STL
- ORD
1 stop14h 29m
Multiple Airlines
Wed 2/2512:44 pm
ORD
- STL
1 stop9h 43m
Multiple Airlines
Deal found 1/14![Multiple Airlines logo]()
$138
This Frontier deal was found by Cheapflights users on 1/12. 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.
Wed 2/188:17 pm
STL
- DTW
1 stop10h 50m
Frontier
Mon 2/2312:22 pm
DTW
- STL
1 stop12h 37m
Frontier
Deal found 1/12![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 2/173:49 pm
STL
- DTW
1 stop16h 08m
Frontier
Wed 2/258:30 am
DTW
- STL
1 stop8h 23m
Frontier
Deal found 1/12![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 2/212:51 pm
STL
- DTW
1 stop8h 04m
Frontier
Fri 2/2710:00 pm
DTW
- STL
1 stop9h 51m
Frontier
Deal found 1/12![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 2/208:20 pm
STL
- DTW
1 stop11h 12m
Frontier
Wed 2/258:30 am
DTW
- STL
1 stop8h 23m
Frontier
Deal found 1/12![Frontier logo]()
$152
This Southwest deal was found by Cheapflights users on 1/14. 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 4/81:45 pm
STL
- MDW
Nonstop1h 10m
Southwest
Wed 4/158:15 am
MDW
- STL
Nonstop1h 15m
Southwest
Deal found 1/14![Southwest logo]()
$153
This United Airlines deal was found by Cheapflights users on 1/14. 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 2/116:40 pm
STL
- ORD
Nonstop1h 43m
United Airlines
Wed 2/189:33 pm
ORD
- STL
Nonstop1h 26m
United Airlines
Deal found 1/14![United Airlines logo]()
$153
This American Airlines deal was found by Cheapflights users on 1/14. 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.
Wed 5/612:11 pm
STL
- ORD
Nonstop1h 26m
American Airlines
Wed 5/1310:30 pm
ORD
- STL
Nonstop1h 18m
American Airlines
Deal found 1/14![American Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 2/142:51 pm
STL
- DTW
1 stop8h 04m
Multiple Airlines
Sun 2/156:02 pm
DTW
- STL
1 stop13h 49m
Multiple Airlines
Deal found 1/14![Multiple Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 2/168:22 pm
STL
- DTW
1 stop25h 45m
Multiple Airlines
Wed 2/258:30 am
DTW
- STL
1 stop8h 23m
Multiple Airlines
Deal found 1/12![Multiple Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 2/118:17 pm
STL
- DTW
1 stop10h 50m
Multiple Airlines
Wed 2/187:43 pm
DTW
- STL
1 stop29h 16m
Multiple Airlines
Deal found 1/14![Multiple Airlines logo]()
$158
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Michigan 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 15, 2026.
Use the filters below to find and compare flights from St. Louis to Michigan that are best for you.
Fly from
St. Louis
Fly to
Michigan
Route
Depart
Return
Price
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Wed 4/8
7:45 am-9:11 am
Nonstop1h 26m
Chicago O'Hare Intl
Wed 4/15
9:30 pm-10:56 pm
Nonstop1h 26m
$153
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Tue 2/10
6:40 pm-8:23 pm
Nonstop1h 43m
Chicago O'Hare Intl
Wed 2/18
8:10 pm-9:40 pm
Nonstop1h 30m
$153
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Wed 2/11
6:40 pm-8:23 pm
Nonstop1h 43m
Chicago O'Hare Intl
Wed 2/18
9:33 pm-10:59 pm
Nonstop1h 26m
$153
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
Thu 4/9
11:21 am-10:21 pm
1 stop11h 00m
Chicago Midway
Sat 4/11
10:40 am-11:25 pm
1 stop12h 45m
$160
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
Wed 2/18
8:17 pm-11:27 am
1 stop15h 10m
Chicago Midway
Mon 2/23
9:22 pm-10:27 pm
1 stop25h 05m
$160
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Thu 4/9
11:21 am-10:44 pm
1 stop11h 23m
Chicago O'Hare Intl
Sat 4/11
4:21 pm-11:25 pm
1 stop7h 04m
$160
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Wed 2/18
8:17 am-9:50 am
Nonstop1h 33m
Chicago O'Hare Intl
Thu 2/19
9:33 pm-10:59 pm
Nonstop1h 26m
$162
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Wed 2/4
11:20 am-12:57 pm
Nonstop1h 37m
Chicago O'Hare Intl
Thu 2/5
10:52 am-12:29 pm
Nonstop1h 37m
$162
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
Wed 4/8
1:45 pm-2:55 pm
Nonstop1h 10m
Chicago Midway
Wed 4/15
2:35 pm-8:00 pm
1 stop5h 25m
$163
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Tue 2/10
11:22 am-7:36 pm
1 stop7h 14m
Detroit Metropolitan Wayne County
Wed 2/11
7:15 am-11:02 am
1 stop4h 47m
$169
Showing 1-10 of 60 results
Best time to book a flight from St. Louis to Michigan
Have a flexible travel schedule? Discover the best time to fly to Michigan 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 Michigan
What is the cheapest month to book a flight from St. Louis to Michigan?
Currently, June is the cheapest month in which you can book a flight from St. Louis to Michigan (average of $48). Flying from St. Louis to Michigan in February is currently the most expensive (average of $262). 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 MI?
Find hourly flight availability from St. Louis to Michigan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 15, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 68% on flights from St. Louis to Michigan by exploring options for tickets in the evening.
What is the cheapest day to fly from St. Louis to Michigan?
Use this chart to determine the cheapest time to fly round-trip from St. Louis to Michigan. Price data was last updated on January 10, 2026.
Travelers seeking maximum savings on their St. Louis to Michigan 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.
Weekly flight availability from St. Louis to Michigan
Explore weekly flight availability from St. Louis to Michigan. 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 15, 2026.
The most flights from STL to USMI are scheduled on a Thursday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).
How much does it cost to fly round-trip from St. Louis to Michigan?
Reviews of airlines servicing Michigan
Get insights into the airlines that provide service to Michigan. 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 Michigan. Reviews last updated January 15, 2026.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from St. Louis to Michigan by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Michigan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Michigan
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from St. Louis to Michigan
Discover the top 5 airlines that operate flights from St. Louis to Michigan. 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 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$38 | Average$78 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$75 | Average$352 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$119 | Average$289 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$182 | Average$325 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$200 | Average$523 | FlexibilityNo cancel fee | On-time69% |