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St. Louis

$67+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
MDW — STL
Feb 23 — Mar 21
Mon 2/23
Mon 3/2
1 adult, Economy
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Cheap flight deals from Midway to St. Louis

Cheapest flights from Midway to St. Louis
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 January 24, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/23. 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 1/305:01 pm
MDW
-
STL
1 stop13h 50m
Frontier
Fri 2/68:22 pm
STL
-
MDW
1 stop12h 21m
Frontier
Deal found 1/23$156
This Kiwi.com deal was found by Cheapflights users on 1/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/306:20 am
MDW
-
STL
1 stop24h 31m
Frontier
Mon 2/28:22 pm
STL
-
MDW
1 stop15h 43m
Frontier
Deal found 1/22$158
This Southwest deal was found by Cheapflights users on 1/24. 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 2/238:15 am
MDW
-
STL
Nonstop1h 20m
Southwest
Mon 3/24:30 pm
STL
-
MDW
Nonstop1h 10m
Southwest
Deal found 1/24$171
This Kiwi.com deal was found by Cheapflights users on 1/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/66:20 am
MDW
-
STL
1 stop24h 31m
Frontier
Tue 2/103:49 pm
STL
-
MDW
2 stops27h 18m
Frontier
Deal found 1/21$190
This Delta deal was found by Cheapflights users on 1/23. 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 2/144:13 pm
MDW
-
STL
1 stop7h 23m
Delta
Mon 2/166:10 am
STL
-
MDW
1 stop6h 55m
Delta
Deal found 1/23$191
This Delta deal was found by Cheapflights users on 1/23. 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 2/189:34 am
MDW
-
STL
2 stops7h 11m
Delta
Sat 2/216:35 am
STL
-
MDW
1 stop6h 11m
Delta
Deal found 1/23$196
This Kiwi.com deal was found by Cheapflights users on 1/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/55:01 pm
MDW
-
STL
2 stops17h 22m
Frontier
Sat 2/78:22 pm
STL
-
MDW
1 stop15h 23m
Frontier
Deal found 1/22$203
This Kiwi.com deal was found by Cheapflights users on 1/22. 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 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
Thu 2/2610:11 pm
STL
-
MDW
2 stops20h 19m
Frontier
Deal found 1/22$212
This Kiwi.com deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/136:48 pm
MDW
-
STL
1 stop12h 03m
Frontier
Mon 2/168:22 pm
STL
-
MDW
1 stop22h 45m
Frontier
Deal found 1/23$223
This Kiwi.com deal was found by Cheapflights users on 1/23. 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 2/126:25 am
MDW
-
STL
1 stop24h 26m
Frontier
Mon 2/168:22 pm
STL
-
MDW
1 stop22h 45m
Frontier
Deal found 1/23$225

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 January 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$156
(Kiwi.com)

One-way from

$67
(Kiwi.com)

Popular in

November

Cheapest in

October

Average price

$600

Good round-trip deal

$288 or less

Good one-way deal

$178 or less
Provider with most accurate pricing for Chicago Midway-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago Midway-Lambert-St Louis flights.
Search Deals
From Chicago Midway to Lambert-St Louis
Search Deals
One-way flight from Chicago Midway to Lambert-St Louis
Search Deals
High demand for flights, 13% potential price rise
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Chicago Midway to Lambert-St Louis.
Search Deals
Price to beat on a one-way flight from Chicago Midway to Lambert-St Louis.
Search Deals

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 January 24, 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

Mon 2/23

8:15 am-9:35 am

Nonstop1h 20m

Lambert-St Louis

Mon 3/2

4:30 pm-5:40 pm

Nonstop1h 10m

$171

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Fri 2/6

6:20 am-6:51 am

1 stop24h 31m

Lambert-St Louis

Tue 2/10

3:49 pm-7:07 pm

2 stops27h 18m

$190

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Sat 3/7

4:13 pm-11:36 pm

1 stop7h 23m

Lambert-St Louis

Mon 3/9

6:32 am-12:29 pm

1 stop5h 57m

$191

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Mon 2/23

6:40 pm-11:36 pm

1 stop4h 56m

Lambert-St Louis

Mon 3/2

11:23 am-6:40 pm

1 stop7h 17m

$191

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Sat 2/21

5:00 pm-11:23 pm

1 stop6h 23m

Lambert-St Louis

Sat 2/28

11:30 am-4:14 pm

1 stop4h 44m

$191

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Sat 2/14

6:00 am-11:02 am

1 stop5h 02m

Lambert-St Louis

Mon 2/16

6:35 am-12:46 pm

1 stop6h 11m

$191

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Wed 2/18

9:34 am-4:45 pm

2 stops7h 11m

Lambert-St Louis

Sat 2/21

6:35 am-12:46 pm

1 stop6h 11m

$196

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Fri 2/6

1:00 pm-11:33 pm

1 stop10h 33m

Lambert-St Louis

Mon 2/9

8:22 pm-7:07 pm

1 stop22h 45m

$203

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Thu 2/12

6:25 am-6:51 am

1 stop24h 26m

Lambert-St Louis

Mon 2/16

8:22 pm-7:07 pm

1 stop22h 45m

$225

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Sat 4/11

10:15 am-6:10 pm

1 stop7h 55m

$82

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 20 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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 Expedia the most. Expedia 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.
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

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 January 24, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 23% 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 January 17, 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. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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
Ramsey Qubein

Ramsey Qubein

Expert on MDW

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more

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 January 24, 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.
Southwest
8.0
Very good
4,268 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,268 reviews
Southwest
8.0
Very good
4,268 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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.

  • What airport do you fly into for flights to St. Louis from Chicago Midway?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Chicago Midway. Booking flights from Chicago Midway to Lambert-St Louis (STL) should be relatively easy as there are 3 daily inbound flights from Chicago Midway from 1 airline.

  • How long is the flight from Chicago Midway Airport to St. Louis?

    Airlines like Southwest, Frontier, and Delta fly from Chicago Midway Airport to St. Louis in about 1h 20m. The time it takes to get you to your destination can typically vary by up to 23h 11m. The distance from Chicago Midway Airport to St. Louis is about 251 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Chicago Midway Airport to St. Louis round-trip?

    Currently priced at $77, Southwest will fly you from Chicago Midway Airport to St. Louis and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Southwest is currently priced 80% below the average price you’ll pay for this route.

  • What are the cheapest flights from Chicago Midway Airport to St. Louis?

    While on average a flight from Chicago Midway Airport to St. Louis is generally $338, our data shows the cheapest flight currently is $136. When looking at the most popular route, (Chicago Midway - Lambert-St Louis), you can expect to pay $243 for that flight.

  • Can I find deals for flights from Midway to St. Louis that include hotel bookings?

    Yes. In addition to deals on Midway to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Midway to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Midway to St. Louis.

  • Can I find deals for business class flights from Midway to St. Louis?

    Yes. Cheapflights offers flight deals from Midway to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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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 January 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$77Average$387FlexibilityNo cancel feeOn-time63%

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