$59+ Cheap flights from Michigan to St. Louis (STL)
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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — STL
May 2 — May 91
Round-trip
1 adult, Economy
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Find cheap flights from Michigan to St. Louis 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 Michigan to St. Louis
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Cheapest flights from Michigan to St. LouisExplore the most affordable flight options available from Michigan to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2026.
Explore the most affordable flight options available from Michigan to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2026.
This Frontier deal was found by Cheapflights users on 4/2. 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 4/232:57 pm
GRR
- STL
1 stop9h 22m
Frontier
Sun 4/264:59 pm
STL
- GRR
1 stop23h 29m
Frontier
Deal found 4/2![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 5/51:31 pm
DTW
- STL
1 stop20h 24m
Frontier
Wed 5/65:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 4/1![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 5/18:49 pm
DTW
- STL
1 stop11h 01m
Frontier
Mon 5/48:23 pm
STL
- DTW
1 stop27h 36m
Frontier
Deal found 3/31![Frontier logo]()
$147
This Expedia deal was found by Cheapflights users on 4/1. 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.
Sat 5/231:20 pm
DTW
- STL
1 stop7h 03m
Frontier
Sun 5/248:08 pm
STL
- DTW
1 stop26h 51m
Frontier
Deal found 4/1![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/147:04 pm
DTW
- STL
1 stop12h 46m
Frontier
Thu 4/1611:25 am
STL
- DTW
1 stop6h 21m
Frontier
Deal found 3/31![Frontier logo]()
$179
This Priceline deal was found by Cheapflights users on 3/30. 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.
Mon 5/42:20 pm
DTW
- STL
1 stop9h 59m
Frontier
Tue 5/56:41 pm
STL
- DTW
1 stop5h 18m
Frontier
Deal found 3/30![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 4/145:34 pm
DTW
- STL
1 stop14h 16m
Multiple Airlines
Thu 4/1611:25 am
STL
- DTW
1 stop6h 21m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 4/248:49 pm
DTW
- STL
1 stop11h 01m
Frontier
Mon 4/278:23 pm
STL
- DTW
1 stop20h 44m
Frontier
Deal found 4/1![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 5/51:31 pm
DTW
- STL
1 stop20h 24m
Frontier
Thu 5/73:33 pm
STL
- DTW
1 stop21h 21m
Frontier
Deal found 3/30![Frontier logo]()
$187
This Delta deal was found by Cheapflights users on 4/1. 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 4/228:02 pm
DTW
- STL
Nonstop1h 42m
Delta
Tue 4/286:48 am
STL
- DTW
Nonstop1h 29m
Delta
Deal found 4/1![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 4/2. 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 4/235:55 pm
MDW
- STL
1 stop5h 20m
Southwest
Mon 4/273:50 pm
STL
- MDW
1 stop4h 40m
Southwest
Deal found 4/2![Southwest logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 5/12:15 pm
MDW
- STL
1 stop16h 35m
Frontier
Fri 5/89:18 pm
STL
- MDW
2 stops13h 46m
Frontier
Deal found 4/1![Frontier logo]()
$215
Best flights from Michigan to St. LouisDiscover carefully curated flight deals from Michigan to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 2, 2026.
Discover carefully curated flight deals from Michigan to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 2, 2026.
This Frontier deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:47 am
DTW
- STL
1 stop10h 49m
Frontier
Wed 5/65:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 4/2![Frontier logo]()
$160
This Southwest deal was found by Cheapflights users on 3/31. 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 6/107:05 am
DTW
- STL
Nonstop1h 35m
Southwest
Wed 6/107:40 pm
STL
- DTW
Nonstop1h 30m
Southwest
Deal found 3/31![Southwest logo]()
$197
This Delta deal was found by Cheapflights users on 4/1. 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 4/238:59 am
DTW
- STL
Nonstop1h 43m
Delta
Mon 4/276:48 am
STL
- DTW
Nonstop1h 29m
Delta
Deal found 4/1![Delta logo]()
$213
This American Airlines deal was found by Cheapflights users on 3/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:59 am
ORD
- STL
Nonstop1h 25m
American Airlines
Mon 4/276:55 pm
STL
- ORD
1 stop4h 59m
American Airlines
Deal found 3/28![American Airlines logo]()
$236
This United Airlines deal was found by Cheapflights users on 3/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:20 pm
ORD
- STL
Nonstop1h 32m
United Airlines
Tue 4/289:10 am
STL
- ORD
Nonstop1h 30m
United Airlines
Deal found 3/29![United Airlines logo]()
$261
This Southwest deal was found by Cheapflights users on 4/1. 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 4/227:10 pm
DTW
- STL
Nonstop1h 45m
Southwest
Tue 4/286:35 am
STL
- DTW
1 stop4h 25m
Southwest
Deal found 4/1![Southwest logo]()
$207
This Delta deal was found by Cheapflights users on 3/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/271:36 pm
ORD
- STL
2 stops9h 37m
Delta
Mon 5/412:23 pm
STL
- ORD
2 stops8h 17m
Delta
Deal found 3/28![Delta logo]()
$256
This Southwest deal was found by Cheapflights users on 4/1. 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 4/2211:35 am
MDW
- STL
2 stops6h 20m
Southwest
Tue 4/281:15 pm
STL
- MDW
2 stops6h 20m
Southwest
Deal found 4/1![Southwest logo]()
$233
This American Airlines deal was found by Cheapflights users on 4/2. 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.
Tue 5/195:34 am
GRR
- STL
1 stop7h 13m
American Airlines
Tue 5/266:00 am
STL
- GRR
1 stop7h 06m
American Airlines
Deal found 4/2![American Airlines logo]()
$263
This United Airlines deal was found by Cheapflights users on 3/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/811:25 am
ORD
- STL
Nonstop1h 22m
United Airlines
Mon 5/118:30 pm
STL
- ORD
Nonstop1h 31m
United Airlines
Deal found 3/28![United Airlines logo]()
$264
This Delta deal was found by Cheapflights users on 4/2. 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 5/65:04 pm
ORD
- STL
1 stop3h 40m
Delta
Sun 5/107:01 pm
STL
- ORD
1 stop4h 58m
Delta
Deal found 4/2![Delta logo]()
$257
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Mon 5/45:00 am
GRR
- STL
1 stop4h 24m
American Airlines
Tue 5/512:27 pm
STL
- GRR
1 stop10h 50m
American Airlines
Deal found 3/31![American Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 4/2. 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 6/121:16 pm
MDW
- STL
2 stops10h 07m
Delta
Tue 6/169:21 am
STL
- MDW
1 stop6h 55m
Delta
Deal found 4/2![Delta logo]()
$262
This Southwest deal was found by Cheapflights users on 3/30. 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 5/79:00 am
MDW
- STL
Nonstop1h 15m
Southwest
Fri 5/81:45 pm
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 3/30![Southwest logo]()
$264
This United Airlines deal was found by Cheapflights users on 3/30. 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 4/246:15 am
SBN
- STL
1 stop3h 10m
United Airlines
Sun 4/267:45 am
STL
- SBN
1 stop6h 06m
United Airlines
Deal found 3/30![United Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 3/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:00 am
MDW
- STL
Nonstop1h 15m
Southwest
Fri 5/15:40 am
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 3/29![Southwest logo]()
$264
This American Airlines deal was found by Cheapflights users on 4/1. 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 5/1310:27 am
GRR
- STL
1 stop7h 14m
American Airlines
Fri 5/157:05 am
STL
- GRR
1 stop3h 41m
American Airlines
Deal found 4/1![American Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 4/2. 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 5/219:22 am
MDW
- STL
1 stop3h 48m
Delta
Sun 5/246:21 am
STL
- MDW
1 stop6h 58m
Delta
Deal found 4/2![Delta logo]()
$284
This United Airlines deal was found by Cheapflights users on 3/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/92:30 pm
DTW
- STL
2 stops9h 15m
United Airlines
Tue 5/127:45 am
STL
- DTW
2 stops10h 16m
United Airlines
Deal found 3/28![United Airlines logo]()
$313
This American Airlines deal was found by Cheapflights users on 4/1. 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 4/156:00 am
AZO
- STL
1 stop3h 24m
American Airlines
Tue 4/218:03 pm
STL
- AZO
1 stop3h 25m
American Airlines
Deal found 4/1![American Airlines logo]()
$308
This Southwest deal was found by Cheapflights users on 3/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:15 am
MDW
- STL
1 stop5h 00m
Southwest
Sat 6/64:20 pm
STL
- MDW
1 stop3h 05m
Southwest
Deal found 3/29![Southwest logo]()
$284
This Delta deal was found by Cheapflights users on 3/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/811:09 am
ORD
- STL
1 stop6h 07m
Delta
Mon 5/117:01 pm
STL
- ORD
1 stop4h 58m
Delta
Deal found 3/28![Delta logo]()
$284
This United Airlines deal was found by Cheapflights users on 4/2. 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 5/510:00 am
DTW
- STL
2 stops7h 39m
United Airlines
Wed 5/67:45 am
STL
- DTW
1 stop6h 39m
United Airlines
Deal found 4/2![United Airlines logo]()
$327
This American Airlines deal was found by Cheapflights users on 4/2. 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 4/1711:57 am
SBN
- STL
1 stop7h 07m
American Airlines
Mon 4/202:12 pm
STL
- SBN
1 stop7h 34m
American Airlines
Deal found 4/2![American Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 3/30. 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 4/267:40 am
MDW
- STL
1 stop6h 10m
Southwest
Wed 4/298:45 pm
STL
- MDW
Nonstop1h 05m
Southwest
Deal found 3/30![Southwest logo]()
$285
This Delta deal was found by Cheapflights users on 4/1. 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 5/167:00 am
ORD
- STL
2 stops9h 46m
Delta
Sat 5/236:21 am
STL
- ORD
2 stops6h 35m
Delta
Deal found 4/1![Delta logo]()
$285
This United Airlines deal was found by Cheapflights users on 3/31. 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 6/187:05 am
ORD
- STL
Nonstop1h 36m
United Airlines
Sun 6/218:00 am
STL
- ORD
Nonstop1h 35m
United Airlines
Deal found 3/31![United Airlines logo]()
$337
This American Airlines deal was found by Cheapflights users on 3/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:36 am
FNT
- STL
1 stop3h 48m
American Airlines
Sun 4/267:00 am
STL
- FNT
2 stops11h 03m
American Airlines
Deal found 3/29![American Airlines logo]()
$314
This Delta deal was found by Cheapflights users on 3/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:48 am
ORD
- STL
1 stop5h 44m
Delta
Mon 5/412:23 pm
STL
- ORD
2 stops8h 17m
Delta
Deal found 3/29![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 4/2. 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 5/191:00 pm
GRR
- STL
1 stop3h 05m
Southwest
Tue 5/263:10 pm
STL
- GRR
2 stops7h 25m
Southwest
Deal found 4/2![Southwest logo]()
$292
Last-minute flights from Michigan to St. LouisDiscover last-minute flight deals from Michigan to St. Louis. Data last updated April 2, 2026 and is based on user searches.
Discover last-minute flight deals from Michigan to St. Louis. Data last updated April 2, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/147:04 pm
DTW
- STL
1 stop12h 46m
Frontier
Thu 4/1611:25 am
STL
- DTW
1 stop6h 21m
Frontier
Deal found 3/31![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 4/145:34 pm
DTW
- STL
1 stop14h 16m
Multiple Airlines
Thu 4/1611:25 am
STL
- DTW
1 stop6h 21m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$182
This Delta deal was found by Cheapflights users on 4/1. 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 4/228:02 pm
DTW
- STL
Nonstop1h 42m
Delta
Tue 4/286:48 am
STL
- DTW
Nonstop1h 29m
Delta
Deal found 4/1![Delta logo]()
$197
This Frontier deal was found by Cheapflights users on 4/2. 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 4/232:57 pm
GRR
- STL
1 stop9h 22m
Frontier
Sun 4/264:59 pm
STL
- GRR
1 stop23h 29m
Frontier
Deal found 4/2![Frontier logo]()
$142
This Southwest deal was found by Cheapflights users on 4/2. 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 4/235:55 pm
MDW
- STL
1 stop5h 20m
Southwest
Mon 4/273:50 pm
STL
- MDW
1 stop4h 40m
Southwest
Deal found 4/2![Southwest logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 4/248:49 pm
DTW
- STL
1 stop11h 01m
Frontier
Mon 4/278:23 pm
STL
- DTW
1 stop20h 44m
Frontier
Deal found 4/1![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 5/18:49 pm
DTW
- STL
1 stop11h 01m
Frontier
Mon 5/48:23 pm
STL
- DTW
1 stop27h 36m
Frontier
Deal found 3/31![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 5/12:15 pm
MDW
- STL
1 stop16h 35m
Frontier
Fri 5/89:18 pm
STL
- MDW
2 stops13h 46m
Frontier
Deal found 4/1![Frontier logo]()
$215
This Priceline deal was found by Cheapflights users on 3/30. 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.
Mon 5/42:20 pm
DTW
- STL
1 stop9h 59m
Frontier
Tue 5/56:41 pm
STL
- DTW
1 stop5h 18m
Frontier
Deal found 3/30![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 5/51:31 pm
DTW
- STL
1 stop20h 24m
Frontier
Wed 5/65:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 4/1![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 5/51:31 pm
DTW
- STL
1 stop20h 24m
Frontier
Thu 5/73:33 pm
STL
- DTW
1 stop21h 21m
Frontier
Deal found 3/30![Frontier logo]()
$187
This Expedia deal was found by Cheapflights users on 4/1. 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.
Sat 5/231:20 pm
DTW
- STL
1 stop7h 03m
Frontier
Sun 5/248:08 pm
STL
- DTW
1 stop26h 51m
Frontier
Deal found 4/1![Frontier logo]()
$165
One-way flights from Michigan to St. LouisSearch for one-way flight options from Michigan to St. Louis. Find affordable one-way fares based on user searches. Data last updated April 2, 2026.
Search for one-way flight options from Michigan to St. Louis. Find affordable one-way fares based on user searches. Data last updated April 2, 2026.
This Southwest deal was found by Cheapflights users on 3/31. 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 6/305:10 pm
MDW
- STL
Nonstop1h 10m
Southwest
Deal found 3/31![Southwest logo]()
$59
This United Airlines deal was found by Cheapflights users on 4/1. 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 5/57:06 am
ORD
- STL
Nonstop1h 33m
United Airlines
Deal found 4/1![United Airlines logo]()
$59
This Southwest deal was found by Cheapflights users on 3/31. 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 5/511:55 am
ORD
- STL
1 stop6h 00m
Southwest
Deal found 3/31![Southwest logo]()
$69
This Frontier deal was found by Cheapflights users on 3/30. 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 5/84:52 pm
MDW
- STL
1 stop7h 29m
Frontier
Deal found 3/30![Frontier logo]()
$70
This Frontier deal was found by Cheapflights users on 3/30. 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 5/85:30 pm
ORD
- STL
1 stop6h 51m
Frontier
Deal found 3/30![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 4/2. 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 6/26:50 am
DTW
- STL
1 stop11h 43m
Frontier
Deal found 4/2![Frontier logo]()
$74
This Southwest deal was found by Cheapflights users on 3/31. 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 4/2111:35 am
MDW
- STL
2 stops6h 20m
Southwest
Deal found 3/31![Southwest logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/217:04 pm
DTW
- STL
1 stop12h 46m
Frontier
Deal found 3/31![Frontier logo]()
$75
This Frontier deal was found by Cheapflights users on 3/31. 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 4/308:43 pm
DTW
- STL
1 stop11h 07m
Frontier
Deal found 3/31![Frontier logo]()
$76
This Frontier deal was found by Cheapflights users on 3/31. 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 4/308:58 pm
ORD
- STL
1 stop14h 24m
Frontier
Deal found 3/31![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 4/286:10 am
MDW
- STL
1 stop24h 40m
Frontier
Deal found 4/1![Frontier logo]()
$77
This Delta deal was found by Cheapflights users on 3/31. 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 6/29:23 am
MDW
- STL
1 stop5h 08m
Delta
Deal found 3/31![Delta logo]()
$79
Find flight deals from Michigan to St. Louis
Keep the following information in mind while searching for Michigan to St. Louis flight deals. Data was last updated April 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $142 (Frontier) |
One-way from | $59 (Southwest) |
Popular in | February |
Cheapest in | August |
Average price | $315 |
Good round-trip deal | $359 or less |
Good one-way deal | $202 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Michigan to St. Louis 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 2, 2026.
Use the filters below to find and compare flights from Michigan to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DetroitSt. Louis
DTW - STL
DTWSTL
Detroit Metropolitan Wayne County
Tue 5/5
7:47 am-5:36 pm
1 stop10h 49m
Lambert-St Louis
Wed 5/6
5:27 pm-12:39 am
1 stop6h 12m
$160
DetroitSt. Louis
DTW - STL
DTWSTL
Detroit Metropolitan Wayne County
Wed 6/10
7:05 am-7:40 am
Nonstop1h 35m
Lambert-St Louis
Wed 6/10
7:40 pm-10:10 pm
Nonstop1h 30m
$197
DetroitSt. Louis
DTW - STL
DTWSTL
Detroit Metropolitan Wayne County
Wed 4/22
7:10 pm-7:55 pm
Nonstop1h 45m
Lambert-St Louis
Tue 4/28
6:35 am-12:00 pm
1 stop4h 25m
$207
DetroitSt. Louis
DTW - STL
DTWSTL
Detroit Metropolitan Wayne County
Thu 4/23
8:59 am-9:42 am
Nonstop1h 43m
Lambert-St Louis
Mon 4/27
6:48 am-9:17 am
Nonstop1h 29m
$213
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Wed 4/22
11:35 am-5:55 pm
2 stops6h 20m
Lambert-St Louis
Tue 4/28
1:15 pm-7:35 pm
2 stops6h 20m
$233
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Thu 4/23
6:59 am-8:24 am
Nonstop1h 25m
Lambert-St Louis
Mon 4/27
6:55 pm-11:54 pm
1 stop4h 59m
$236
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Mon 4/27
1:36 pm-11:13 pm
2 stops9h 37m
Lambert-St Louis
Mon 5/4
12:23 pm-8:40 pm
2 stops8h 17m
$256
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Wed 5/6
5:04 pm-8:44 pm
1 stop3h 40m
Lambert-St Louis
Sun 5/10
7:01 pm-11:59 pm
1 stop4h 58m
$257
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Thu 4/23
8:20 pm-9:52 pm
Nonstop1h 32m
Lambert-St Louis
Tue 4/28
9:10 am-10:40 am
Nonstop1h 30m
$261
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Fri 6/12
1:16 pm-11:23 pm
2 stops10h 07m
Lambert-St Louis
Tue 6/16
9:21 am-4:16 pm
1 stop6h 55m
$262
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Michigan to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Michigan with our price prediction graph.
MDW-STL
ORD-STL
DTW-STL
TVC-STL
GRR-STL
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 Michigan to St. Louis
USMI-STL
MDW-STL
ORD-STL
DTW-STL
TVC-STL
What is the cheapest month to book a flight from Michigan to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Michigan to St. Louis (average of $39). Flying from Michigan to St. Louis in January is currently the most expensive (average of $253). 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 MI to STL?
Find hourly flight availability from Michigan to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 2, 2026.
It’s typically best to fly out from Michigan to St. Louis at noon. Doing so could potentially save you 23% on the flight price compared to flying in the evening, which is usually more expensive.
What is the cheapest day to fly from Michigan to St. Louis?
Use this chart to determine the cheapest time to fly round-trip from Michigan to St. Louis. Price data was last updated on March 28, 2026.
Travelers seeking maximum savings on their Michigan to St. Louis flight should consider departing on Friday at noon when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Michigan to St. Louis
Explore weekly flight availability from Michigan to St. Louis. 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 2, 2026.
The most flights from USMI to STL are scheduled on a Thursday (17 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).
How much does it cost to fly round-trip from Michigan to St. Louis?
Related info for your journey
Find useful and relevant information for your journey from Michigan to St. Louis. 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 St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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.
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St. Louis flight routes
Top destinations
Alternative routes for Michigan to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Michigan to St. Louis by cabin class
Find flights from Michigan to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Michigan and St. Louis flights
Browse other Michigan and St. Louis flight options. Last updated on April 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 2, 2026.
Michigan to St. Louis flights
Consider these flights traveling from Michigan to St. Louis.
Top 6 airlines flying from Michigan to St. Louis
Discover the top 6 airlines that operate flights from Michigan to St. Louis. 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 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$28 | Average$88 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$111 | Average$229 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$120 | Average$361 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$121 | Average$360 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$200 | Average$317 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$228 | Average$328 | FlexibilityNo cancel fee | On-time69% |