$43+ Cheap flights from Midway (MDW) 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
MDW — STL
Mar 13 — Mar 201
1 adult, Economy
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Find cheap flights from Midway 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 Midway to St. Louis
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Best
Last-minute
One-way
Cheapest flights from Midway to St. LouisExplore the most affordable flight options available from Midway to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.
Explore the most affordable flight options available from Midway to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1710:30 am
MDW
- STL
Nonstop1h 10m
Southwest
Wed 3/1810:30 am
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 2/8![Southwest logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:16 pm
MDW
- STL
1 stop18h 33m
Frontier
Mon 3/92:09 pm
STL
- MDW
1 stop8h 10m
Frontier
Deal found 2/9![Frontier logo]()
$128
This Southwest deal was found by Cheapflights users on 2/10. 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 3/911:15 am
MDW
- STL
Nonstop1h 15m
Southwest
Wed 3/115:40 am
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 2/10![Southwest logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1912:22 pm
MDW
- STL
1 stop18h 29m
Frontier
Mon 2/238:22 pm
STL
- MDW
1 stop22h 45m
Frontier
Deal found 2/8![Frontier logo]()
$142
This Southwest deal was found by Cheapflights users on 2/10. 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 4/87:45 am
MDW
- STL
1 stop5h 15m
Southwest
Sat 4/1110:35 am
STL
- MDW
1 stop6h 25m
Southwest
Deal found 2/10![Southwest logo]()
$154
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:25 am
MDW
- STL
Nonstop1h 20m
Southwest
Mon 3/92:15 pm
STL
- MDW
Nonstop1h 05m
Southwest
Deal found 2/8![Southwest logo]()
$157
This Frontier deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:30 pm
MDW
- STL
1 stop11h 21m
Frontier
Mon 4/138:41 am
STL
- MDW
1 stop11h 28m
Frontier
Deal found 2/8![Frontier logo]()
$160
Best flights from Midway to St. LouisDiscover carefully curated flight deals from Midway to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 11, 2026.
Discover carefully curated flight deals from Midway to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 11, 2026.
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/258:15 am
MDW
- STL
Nonstop1h 20m
Southwest
Wed 4/110:30 am
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 2/8![Southwest logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:16 pm
MDW
- STL
1 stop18h 33m
Frontier
Mon 3/92:09 pm
STL
- MDW
1 stop8h 10m
Frontier
Deal found 2/9![Frontier logo]()
$128
This Southwest deal was found by Cheapflights users on 2/10. 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 3/1710:30 am
MDW
- STL
Nonstop1h 10m
Southwest
Tue 3/174:00 pm
STL
- MDW
Nonstop1h 05m
Southwest
Deal found 2/10![Southwest logo]()
$97
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1710:30 am
MDW
- STL
Nonstop1h 10m
Southwest
Wed 3/1810:30 am
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 2/8![Southwest logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1912:22 pm
MDW
- STL
1 stop18h 29m
Frontier
Mon 2/238:22 pm
STL
- MDW
1 stop22h 45m
Frontier
Deal found 2/8![Frontier logo]()
$142
This Southwest deal was found by Cheapflights users on 2/10. 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 5/72:10 pm
MDW
- STL
Nonstop1h 15m
Southwest
Wed 5/135:35 am
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 2/10![Southwest logo]()
$134
This Southwest deal was found by Cheapflights users on 2/9. 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 4/67:45 am
MDW
- STL
Nonstop1h 15m
Southwest
Wed 4/83:55 pm
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 2/9![Southwest logo]()
$134
Last-minute flights from Midway to St. LouisDiscover last-minute flight deals from Midway to St. Louis. Data last updated February 11, 2026 and is based on user searches.
Discover last-minute flight deals from Midway to St. Louis. Data last updated February 11, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1912:22 pm
MDW
- STL
1 stop18h 29m
Frontier
Mon 2/238:22 pm
STL
- MDW
1 stop22h 45m
Frontier
Deal found 2/8![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:16 pm
MDW
- STL
1 stop18h 33m
Frontier
Mon 3/92:09 pm
STL
- MDW
1 stop8h 10m
Frontier
Deal found 2/9![Frontier logo]()
$128
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:25 am
MDW
- STL
Nonstop1h 20m
Southwest
Mon 3/92:15 pm
STL
- MDW
Nonstop1h 05m
Southwest
Deal found 2/8![Southwest logo]()
$157
This Southwest deal was found by Cheapflights users on 2/10. 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 3/911:15 am
MDW
- STL
Nonstop1h 15m
Southwest
Wed 3/115:40 am
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 2/10![Southwest logo]()
$134
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1710:30 am
MDW
- STL
Nonstop1h 10m
Southwest
Wed 3/1810:30 am
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 2/8![Southwest logo]()
$97
This Southwest deal was found by Cheapflights users on 2/10. 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 3/289:40 pm
MDW
- STL
Nonstop1h 15m
Southwest
Tue 3/318:50 pm
STL
- MDW
Nonstop1h 05m
Southwest
Deal found 2/10![Southwest logo]()
$164
One-way flights from Midway to St. LouisSearch for one-way flight options from Midway to St. Louis. Find affordable one-way fares based on user searches. Data last updated February 11, 2026.
Search for one-way flight options from Midway to St. Louis. Find affordable one-way fares based on user searches. Data last updated February 11, 2026.
This Southwest deal was found by Cheapflights users on 2/9. 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 3/76:25 am
MDW
- STL
Nonstop1h 20m
Southwest
Deal found 2/9![Southwest logo]()
$43
This Southwest deal was found by Cheapflights users on 2/9. 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 3/319:05 pm
MDW
- STL
Nonstop1h 15m
Southwest
Deal found 2/9![Southwest logo]()
$49
This Southwest deal was found by Cheapflights users on 2/9. 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 3/31:20 pm
MDW
- STL
2 stops7h 15m
Southwest
Deal found 2/9![Southwest logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:16 pm
MDW
- STL
1 stop18h 33m
Frontier
Deal found 2/9![Frontier logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/96:05 am
MDW
- STL
1 stop7h 14m
Frontier
Deal found 2/10![Frontier logo]()
$68
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/99:15 am
MDW
- STL
Nonstop1h 15m
Southwest
Deal found 2/8![Southwest logo]()
$72
This Delta deal was found by Cheapflights users on 2/9. 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 3/1110:45 am
MDW
- STL
1 stop7h 08m
Delta
Deal found 2/9![Delta logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:16 pm
MDW
- STL
1 stop13h 35m
Frontier
Deal found 2/9![Frontier logo]()
$80
This Southwest deal was found by Cheapflights users on 2/9. 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 3/95:40 pm
MDW
- STL
Nonstop1h 15m
Southwest
Deal found 2/9![Southwest logo]()
$86
Find flight deals from Midway to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Midway (MDW) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $97 (Southwest) |
One-way from | $43 (Southwest) |
Popular in | November |
Cheapest in | October |
Average price | $514 |
Good round-trip deal | $284 or less |
Good one-way deal | $208 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Midway 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 February 11, 2026.
Use the filters below to find and compare flights from Chicago Midway Airport to St. Louis that are best for you.
Fly from
Midway
Fly to
St. Louis
Route
Depart
Return
Price
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Wed 3/25
8:15 am-9:35 am
Nonstop1h 20m
Lambert-St Louis
Wed 4/1
10:30 am-11:40 am
Nonstop1h 10m
$97
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Tue 3/17
10:30 am-11:40 am
Nonstop1h 10m
Lambert-St Louis
Tue 3/17
4:00 pm-5:05 pm
Nonstop1h 05m
$97
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Tue 3/17
10:30 am-11:40 am
Nonstop1h 10m
Lambert-St Louis
Wed 3/18
10:30 am-11:40 am
Nonstop1h 10m
$97
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Thu 3/5
5:16 pm-11:49 am
1 stop18h 33m
Lambert-St Louis
Mon 3/9
2:09 pm-10:19 pm
1 stop8h 10m
$128
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Thu 5/7
2:10 pm-3:25 pm
Nonstop1h 15m
Lambert-St Louis
Wed 5/13
5:35 am-6:45 am
Nonstop1h 10m
$134
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Mon 4/6
7:45 am-9:00 am
Nonstop1h 15m
Lambert-St Louis
Wed 4/8
3:55 pm-5:05 pm
Nonstop1h 10m
$134
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Thu 2/19
12:22 pm-6:51 am
1 stop18h 29m
Lambert-St Louis
Mon 2/23
8:22 pm-7:07 pm
1 stop22h 45m
$142
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Sat 4/11
6:30 pm-7:45 pm
Nonstop1h 15m
$43
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Sat 4/25
9:15 am-10:30 am
Nonstop1h 15m
$43
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Tue 3/31
8:15 am-9:35 am
Nonstop1h 20m
$49
Showing 1-10 of 15 results
Compare providers for flights from Midway to St. Louis
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Midway to St. Louis in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago Midway Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago Midway Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago Midway Airport-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago Midway Airport-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago Midway Airport-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Midway to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Midway with our price prediction graph.
MDW-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 Chicago Midway Airport to St. Louis
Prices
Delays
What is the cheapest time of day to fly from MDW to STL?
Find hourly flight availability from Midway 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 February 11, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 22% on flights from Chicago Midway Airport to St. Louis by exploring options for tickets at noon.
What is the cheapest day to fly from Chicago Midway Airport to St. Louis?
Use this chart to determine the cheapest time to fly round-trip from Midway to St. Louis. Price data was last updated on February 7, 2026.
Travelers seeking maximum savings on their Chicago Midway Airport to St. Louis flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Chicago to St. Louis delayed?
About 12% of weekly flights between Chicago and St. Louis have experienced delays in the past year, with the average delay time being 105 minutes.
What is the most punctual flight time for Chicago to St. Louis flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Chicago to St. Louis flights?
Over the last year, Southwest have had the lowest number of delays on this route, with just 12% of flights being delayed.
The best insider tips for Chicago Midway Airport to St. Louis flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago Midway Airport to St. Louis trip
Our travel experts
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated February 11, 2026.
See what other customers who have flown with Southwest from Chicago Midway Airport to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Midway 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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus
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Midway and St. Louis flights
Browse other Midway and St. Louis flight options. Last updated on February 11, 2026.
Other flights from Midway
Browse through other flights departing from Midway. Flights are based on user searches made on Cheapflights and were last updated on February 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 11, 2026.
Top airline flying from Midway to St. Louis
Discover the top airline that operate flights from Midway 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 February 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$77 | Average$423 | FlexibilityNo cancel fee | On-time63% |