$59+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DTW
May 22 — May 291
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Cheapest
Best
Last-minute
One-way
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 April 22, 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 April 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 5/295:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Fri 6/56:05 pm
DTW
- STL
1 stop15h 50m
Frontier
Deal found 4/18![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 5/275:27 pm
STL
- DTW
1 stop13h 25m
Multiple Airlines
Fri 6/56:05 pm
DTW
- STL
1 stop15h 50m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$158
This Expedia deal was found by Cheapflights users on 4/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Tue 5/126:50 am
DTW
- STL
1 stop11h 43m
Frontier
Deal found 4/17![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 4/18. 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.
Sat 5/95:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Sun 5/107:55 am
DTW
- STL
1 stop12h 28m
Frontier
Deal found 4/18![Frontier logo]()
$161
This Expedia deal was found by Cheapflights users on 4/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Sun 5/247:55 am
DTW
- STL
1 stop12h 28m
Frontier
Deal found 4/19![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 4/18. 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
Fri 6/56:05 pm
DTW
- STL
1 stop15h 50m
Frontier
Deal found 4/18![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 5/295:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Mon 6/16:05 pm
DTW
- STL
1 stop24h 28m
Frontier
Deal found 4/18![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 6/85:27 pm
STL
- ORD
1 stop14h 36m
Frontier
Tue 6/91:50 pm
ORD
- STL
1 stop18h 57m
Frontier
Deal found 4/17![Frontier logo]()
$174
This Expedia deal was found by Cheapflights users on 4/20. 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 Expedia 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
Sun 5/316:50 am
DTW
- STL
1 stop11h 43m
Frontier
Deal found 4/20![Frontier logo]()
$180
This Expedia deal was found by Cheapflights users on 4/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:08 pm
STL
- ORD
1 stop24h 24m
Frontier
Sun 5/316:55 am
ORD
- STL
1 stop10h 38m
Frontier
Deal found 4/21![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 4/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/154:19 pm
STL
- ORD
1 stop6h 54m
Frontier
Mon 5/185:30 pm
ORD
- STL
1 stop6h 51m
Frontier
Deal found 4/20![Frontier logo]()
$181
This Frontier deal was found by Cheapflights users on 4/18. 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.
Sat 5/94:19 pm
STL
- ORD
1 stop6h 54m
Frontier
Sun 5/106:50 am
ORD
- STL
1 stop10h 04m
Frontier
Deal found 4/18![Frontier logo]()
$182
Best flights from St. Louis to MichiganDiscover carefully curated flight deals from St. Louis to Michigan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 22, 2026.
Discover carefully curated flight deals from St. Louis to Michigan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 22, 2026.
This Delta deal was found by Cheapflights users on 4/17. 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.
Mon 6/83:57 pm
STL
- ORD
1 stop6h 16m
Delta
Tue 6/97:01 am
ORD
- STL
1 stop6h 08m
Delta
Deal found 4/17![Delta logo]()
$184
This Southwest deal was found by Cheapflights users on 4/17. 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 6/86:30 pm
STL
- MDW
Nonstop1h 05m
Southwest
Mon 6/89:35 pm
MDW
- STL
Nonstop1h 15m
Southwest
Deal found 4/17![Southwest logo]()
$191
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Tue 5/265:29 pm
STL
- GRR
1 stop3h 45m
United Airlines
Wed 5/278:47 am
GRR
- STL
1 stop4h 24m
United Airlines
Deal found 4/20![United Airlines logo]()
$297
This American Airlines deal was found by Cheapflights users on 4/18. 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 5/147:05 am
STL
- AZO
1 stop3h 39m
American Airlines
Thu 5/213:48 pm
AZO
- STL
1 stop5h 42m
American Airlines
Deal found 4/18![American Airlines logo]()
$298
This Southwest deal was found by Cheapflights users on 4/17. 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 5/275:35 am
STL
- DTW
1 stop3h 15m
Southwest
Wed 6/37:00 am
DTW
- STL
Nonstop1h 45m
Southwest
Deal found 4/17![Southwest logo]()
$207
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:45 am
STL
- MDW
1 stop5h 57m
Delta
Wed 5/275:12 pm
MDW
- STL
1 stop6h 47m
Delta
Deal found 4/22![Delta logo]()
$233
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:21 am
STL
- ORD
2 stops6h 40m
Delta
Wed 5/279:25 am
ORD
- STL
2 stops7h 21m
Delta
Deal found 4/22![Delta logo]()
$243
This Southwest deal was found by Cheapflights users on 4/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:45 pm
STL
- MDW
Nonstop1h 05m
Southwest
Sat 5/3011:20 am
MDW
- STL
1 stop5h 00m
Southwest
Deal found 4/21![Southwest logo]()
$246
This American Airlines deal was found by Cheapflights users on 4/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:05 am
STL
- GRR
1 stop3h 41m
American Airlines
Mon 5/186:55 pm
GRR
- STL
1 stop4h 24m
American Airlines
Deal found 4/22![American Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 4/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:00 am
STL
- FNT
1 stop6h 19m
United Airlines
Sun 5/312:25 pm
FNT
- STL
1 stop5h 55m
United Airlines
Deal found 4/19![United Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 4/20. 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.
Fri 6/55:40 am
STL
- MDW
Nonstop1h 05m
Southwest
Tue 6/92:35 pm
MDW
- STL
Nonstop1h 10m
Southwest
Deal found 4/20![Southwest logo]()
$261
This Delta deal was found by Cheapflights users on 4/17. 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 5/2710:19 am
STL
- DTW
Nonstop1h 31m
Delta
Wed 6/37:01 am
DTW
- STL
1 stop4h 31m
Delta
Deal found 4/17![Delta logo]()
$278
This American Airlines deal was found by Cheapflights users on 4/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/82:12 pm
STL
- AZO
2 stops9h 18m
American Airlines
Tue 5/126:00 am
AZO
- STL
2 stops12h 21m
American Airlines
Deal found 4/19![American Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 4/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:25 am
STL
- FNT
1 stop3h 34m
United Airlines
Tue 5/193:34 pm
FNT
- STL
1 stop6h 39m
United Airlines
Deal found 4/19![United Airlines logo]()
$314
This American Airlines deal was found by Cheapflights users on 4/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/291:19 pm
STL
- FNT
2 stops10h 24m
American Airlines
Sun 5/315:30 am
FNT
- STL
1 stop4h 02m
American Airlines
Deal found 4/19![American Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 4/20. 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 5/145:40 am
STL
- MDW
Nonstop1h 10m
Southwest
Mon 5/186:15 pm
MDW
- STL
1 stop5h 00m
Southwest
Deal found 4/20![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Thu 6/49:23 am
STL
- MQT
1 stop5h 11m
United Airlines
Thu 6/114:10 pm
MQT
- STL
1 stop6h 06m
United Airlines
Deal found 4/20![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 4/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/276:30 am
STL
- AZO
1 stop3h 42m
Delta
Sun 7/55:30 am
AZO
- STL
1 stop5h 02m
Delta
Deal found 4/19![Delta logo]()
$298
This American Airlines deal was found by Cheapflights users on 4/18. 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.
Sat 6/131:45 pm
STL
- MQT
1 stop6h 54m
American Airlines
Sat 6/207:41 am
MQT
- STL
1 stop6h 33m
American Airlines
Deal found 4/18![American Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 4/20. 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 5/67:45 am
STL
- FNT
1 stop6h 14m
United Airlines
Sun 5/103:34 pm
FNT
- STL
1 stop6h 39m
United Airlines
Deal found 4/20![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 4/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:20 am
STL
- GRR
1 stop7h 10m
Southwest
Mon 5/185:40 pm
GRR
- STL
1 stop6h 05m
Southwest
Deal found 4/21![Southwest logo]()
$299
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:19 am
STL
- AZO
1 stop6h 16m
Delta
Wed 5/135:30 am
AZO
- STL
1 stop4h 59m
Delta
Deal found 4/22![Delta logo]()
$303
This American Airlines deal was found by Cheapflights users on 4/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:27 pm
STL
- LAN
1 stop3h 39m
American Airlines
Sun 5/105:36 pm
LAN
- STL
1 stop5h 43m
American Airlines
Deal found 4/21![American Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 4/18. 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 5/92:05 pm
STL
- MDW
Nonstop1h 10m
Southwest
Mon 5/119:30 pm
MDW
- STL
Nonstop1h 15m
Southwest
Deal found 4/18![Southwest logo]()
$302
This Delta deal was found by Cheapflights users on 4/20. 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.
Fri 5/86:45 am
STL
- AZO
1 stop4h 05m
Delta
Tue 5/126:15 pm
AZO
- STL
1 stop3h 54m
Delta
Deal found 4/20![Delta logo]()
$303
This United Airlines deal was found by Cheapflights users on 4/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:00 am
STL
- ORD
Nonstop1h 30m
United Airlines
Sun 5/312:20 pm
ORD
- STL
Nonstop1h 26m
United Airlines
Deal found 4/19![United Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 4/20. 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 5/710:19 am
STL
- AZO
1 stop6h 16m
Delta
Tue 5/126:15 pm
AZO
- STL
1 stop3h 54m
Delta
Deal found 4/20![Delta logo]()
$303
This United Airlines deal was found by Cheapflights users on 4/17. 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 5/276:00 am
STL
- DTW
2 stops7h 34m
United Airlines
Wed 6/37:00 am
DTW
- STL
2 stops8h 23m
United Airlines
Deal found 4/17![United Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 4/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:50 pm
STL
- MDW
Nonstop1h 05m
Southwest
Sat 6/135:10 pm
MDW
- STL
2 stops6h 35m
Southwest
Deal found 4/22![Southwest logo]()
$313
This American Airlines deal was found by Cheapflights users on 4/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:27 pm
STL
- TVC
1 stop5h 49m
American Airlines
Sun 5/1012:41 pm
TVC
- STL
1 stop5h 00m
American Airlines
Deal found 4/22![American Airlines logo]()
$349
Last-minute flights from St. Louis to MichiganDiscover last-minute flight deals from St. Louis to Michigan. Data last updated April 22, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Michigan. Data last updated April 22, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 4/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Tue 5/126:50 am
DTW
- STL
1 stop11h 43m
Frontier
Deal found 4/17![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 4/18. 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.
Sat 5/95:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Sun 5/107:55 am
DTW
- STL
1 stop12h 28m
Frontier
Deal found 4/18![Frontier logo]()
$161
This Frontier deal was found by Cheapflights users on 4/18. 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.
Sat 5/94:19 pm
STL
- ORD
1 stop6h 54m
Frontier
Sun 5/106:50 am
ORD
- STL
1 stop10h 04m
Frontier
Deal found 4/18![Frontier logo]()
$182
This Frontier deal was found by Cheapflights users on 4/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/144:19 pm
STL
- ORD
1 stop6h 54m
Frontier
Mon 5/185:30 pm
ORD
- STL
1 stop6h 51m
Frontier
Deal found 4/21![Frontier logo]()
$183
This Frontier deal was found by Cheapflights users on 4/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/154:19 pm
STL
- ORD
1 stop6h 54m
Frontier
Mon 5/185:30 pm
ORD
- STL
1 stop6h 51m
Frontier
Deal found 4/20![Frontier logo]()
$181
This Expedia deal was found by Cheapflights users on 4/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Sun 5/247:55 am
DTW
- STL
1 stop12h 28m
Frontier
Deal found 4/19![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 4/18. 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
Fri 6/56:05 pm
DTW
- STL
1 stop15h 50m
Frontier
Deal found 4/18![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 5/275:27 pm
STL
- DTW
1 stop13h 25m
Multiple Airlines
Fri 6/56:05 pm
DTW
- STL
1 stop15h 50m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$158
This Expedia deal was found by Cheapflights users on 4/20. 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 Expedia 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
Sun 5/316:50 am
DTW
- STL
1 stop11h 43m
Frontier
Deal found 4/20![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 5/295:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Fri 6/56:05 pm
DTW
- STL
1 stop15h 50m
Frontier
Deal found 4/18![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 5/295:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Mon 6/16:05 pm
DTW
- STL
1 stop24h 28m
Frontier
Deal found 4/18![Frontier logo]()
$174
This Expedia deal was found by Cheapflights users on 4/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:08 pm
STL
- ORD
1 stop24h 24m
Frontier
Sun 5/316:55 am
ORD
- STL
1 stop10h 38m
Frontier
Deal found 4/21![Frontier logo]()
$180
One-way flights from St. Louis to MichiganSearch for one-way flight options from St. Louis to Michigan. Find affordable one-way fares based on user searches. Data last updated April 22, 2026.
Search for one-way flight options from St. Louis to Michigan. Find affordable one-way fares based on user searches. Data last updated April 22, 2026.
This Southwest deal was found by Cheapflights users on 4/17. 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 5/135:45 am
STL
- ORD
1 stop5h 25m
Southwest
Deal found 4/17![Southwest logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/196:33 pm
STL
- DTW
1 stop29h 06m
Frontier
Deal found 4/17![Frontier logo]()
$65
This Frontier deal was found by Cheapflights users on 4/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 4/20![Frontier logo]()
$70
This Frontier deal was found by Cheapflights users on 4/17. 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.
Thu 5/144:19 pm
STL
- ORD
1 stop6h 54m
Frontier
Deal found 4/17![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 5/196:33 pm
STL
- MDW
1 stop27h 29m
Frontier
Deal found 4/18![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/196:33 pm
STL
- ORD
1 stop13h 22m
Frontier
Deal found 4/17![Frontier logo]()
$76
This Delta deal was found by Cheapflights users on 4/17. 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 6/161:39 pm
STL
- ORD
1 stop6h 53m
Delta
Deal found 4/17![Delta logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Fri 5/295:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 4/20![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 5/18:23 pm
STL
- ORD
1 stop15h 10m
Frontier
Deal found 4/19![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 5/18:23 pm
STL
- MDW
1 stop25h 51m
Frontier
Deal found 4/18![Frontier logo]()
$89
This Frontier deal was found by Cheapflights users on 4/22. 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.
Fri 5/84:19 pm
STL
- ORD
1 stop6h 54m
Frontier
Deal found 4/22![Frontier logo]()
$90
This Frontier deal was found by Cheapflights users on 4/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:33 pm
STL
- DTW
1 stop5h 05m
Frontier
Deal found 4/20![Frontier logo]()
$91
Find 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 April 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $152 (Kiwi.com) |
One-way from | $59 (Southwest) |
Popular in | February |
Cheapest in | July |
Average price | $346 |
Good round-trip deal | $363 or less |
Good one-way deal | $195 or less |
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 April 22, 2026.
Use the filters below to find and compare flights from St. Louis to Michigan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Mon 6/8
3:57 pm-10:13 pm
1 stop6h 16m
Chicago O'Hare Intl
Tue 6/9
7:01 am-1:09 pm
1 stop6h 08m
$184
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
Mon 6/8
6:30 pm-7:35 pm
Nonstop1h 05m
Chicago Midway
Mon 6/8
9:35 pm-10:50 pm
Nonstop1h 15m
$191
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Wed 5/27
5:35 am-9:50 am
1 stop3h 15m
Detroit Metropolitan Wayne County
Wed 6/3
7:00 am-7:45 am
Nonstop1h 45m
$207
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
Wed 5/20
6:45 am-12:42 pm
1 stop5h 57m
Chicago Midway
Wed 5/27
5:12 pm-11:59 pm
1 stop6h 47m
$233
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Wed 5/20
6:21 am-1:01 pm
2 stops6h 40m
Chicago O'Hare Intl
Wed 5/27
9:25 am-4:46 pm
2 stops7h 21m
$243
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
Wed 5/27
8:45 pm-9:50 pm
Nonstop1h 05m
Chicago Midway
Sat 5/30
11:20 am-4:20 pm
1 stop5h 00m
$246
Quickest round-trip
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
Fri 6/5
5:40 am-6:45 am
Nonstop1h 05m
Chicago Midway
Tue 6/9
2:35 pm-3:45 pm
Nonstop1h 10m
$261
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Wed 5/27
10:19 am-12:50 pm
Nonstop1h 31m
Detroit Metropolitan Wayne County
Wed 6/3
7:01 am-10:32 am
1 stop4h 31m
$278
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
Thu 5/14
5:40 am-6:50 am
Nonstop1h 10m
Chicago Midway
Mon 5/18
6:15 pm-11:15 pm
1 stop5h 00m
$287
St. LouisGrand Rapids
STL - GRR
STLGRR
Lambert-St Louis
Tue 5/26
5:29 pm-10:14 pm
1 stop3h 45m
Grand Rapids Gerald R. Ford Intl
Wed 5/27
8:47 am-12:11 pm
1 stop4h 24m
$297
Showing 1-10 of 60 resultsSorted by cheapest first
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.
STL-ORD
STL-LAN
STL-GRR
STL-MDW
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 Michigan
STL-USMI
STL-ORD
STL-LAN
STL-GRR
STL-MDW
What is the cheapest month to book a flight from St. Louis to Michigan?
Currently, August is the cheapest month in which you can book a flight from St. Louis to Michigan (average of $27). Flying from St. Louis to Michigan 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 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 April 22, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 62% 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 April 18, 2026.
Travelers seeking maximum savings on their St. Louis to Michigan 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 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 April 22, 2026.
The most flights from STL to USMI are scheduled on a Tuesday (17 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 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 April 22, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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.
Entertainment
7.5
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
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 Michigan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for St. Louis to Michigan
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Michigan by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Michigan by cabin class
Find flights from St. Louis to Michigan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Michigan flights
Browse other St. Louis and Michigan flight options. Last updated on April 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Michigan flights
Consider these flights traveling from St. Louis to Michigan.
Top 6 airlines flying from St. Louis to Michigan
Discover the top 6 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 April 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$38 | Average$78 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$69 | Average$376 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$80 | Average$280 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$119 | Average$299 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$182 | Average$333 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$200 | Average$538 | FlexibilityNo cancel fee | On-time69% |