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St. Louis

$66+ Cheap flights from Missouri 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — STL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Missouri to St. Louis

Keep the following information in mind while searching for Missouri to St. Louis flight deals. Data was last updated September 11, 2025.

Round-trip from

$136
(Kiwi.com)

One-way from

$66
(Kiwi.com)

Popular in

February

Cheapest in

March

Average price

$374

Good round-trip deal

$317 or less

Good one-way deal

$183 or less
From Missouri to Lambert-St Louis
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One-way flight from Missouri to Lambert-St Louis
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High demand for flights, 16% potential price rise
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Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Missouri to Lambert-St Louis.
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Price to beat on a one-way flight from Missouri to Lambert-St Louis.
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Find flight deals from Missouri to St. Louis

Cheapest flights from Missouri to St. Louis
Explore the most affordable flight options available from Missouri to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sun 10/128:38 pmMCI - STL
1 stop12h 29mFrontier
Tue 10/147:52 pmSTL - MCI
1 stop22h 03mFrontier
Deal found 9/10$136
This Southwest deal was found by Cheapflights users on 9/9. 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.
Wed 10/14:45 pmMCI - STL
Nonstop1h 05mSouthwest
Wed 10/810:20 amSTL - MCI
Nonstop1h 05mSouthwest
Deal found 9/9$157
This Southwest deal was found by Cheapflights users on 9/11. 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 10/2010:50 amMCI - STL
Nonstop1h 00mSouthwest
Wed 10/222:45 pmSTL - MCI
Nonstop1h 05mSouthwest
Deal found 9/11$164
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/238:38 pmMCI - STL
1 stop12h 29mFrontier
Fri 10/247:52 pmSTL - MCI
1 stop22h 03mFrontier
Deal found 9/11$166
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/157:02 pmMCI - STL
1 stop14h 05mFrontier
Mon 10/209:59 pmSTL - MCI
2 stops43h 56mFrontier
Deal found 9/10$167
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/157:02 pmMCI - STL
1 stop14h 05mMultiple Airlines
Mon 10/209:59 pmSTL - MCI
1 stop16h 01mMultiple Airlines
Deal found 9/10$168
This Southwest deal was found by Cheapflights users on 9/11. 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 10/910:50 amMCI - STL
Nonstop1h 00mSouthwest
Sat 10/118:25 amSTL - MCI
Nonstop1h 05mSouthwest
Deal found 9/11$171
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:12 amMCI - STL
1 stop14h 41mAmerican Airlines
Sat 10/47:23 amSTL - MCI
1 stop7h 47mAmerican Airlines
Deal found 9/9$191
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/87:02 pmMCI - STL
1 stop14h 05mFrontier
Wed 10/157:52 pmSTL - MCI
2 stops19h 23mFrontier
Deal found 9/10$197
This Southwest deal was found by Cheapflights users on 9/10. 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 10/82:00 pmMCI - STL
1 stop4h 35mSouthwest
Wed 10/152:45 pmSTL - MCI
Nonstop1h 05mSouthwest
Deal found 9/10$201
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/223:01 pmMCI - STL
1 stop18h 05mFrontier
Wed 9/247:55 pmSTL - MCI
1 stop17h 53mFrontier
Deal found 9/11$202
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/81:49 pmCOU - STL
1 stop10h 05mAmerican Airlines
Wed 10/158:04 pmSTL - COU
1 stop25h 27mAmerican Airlines
Deal found 9/10$269

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri 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 September 11, 2025.
Use the filters below to find and compare flights from Missouri to St. Louis that are best for you.

Fly from

Missouri

Fly to

St. Louis

Route

Depart

Return

Price

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Tue 10/14

6:15 am-7:15 am

Nonstop1h 00m

Lambert-St Louis

Mon 10/20

10:15 pm-11:20 pm

Nonstop1h 05m

$157

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 10/15

10:40 am-11:45 am

Nonstop1h 05m

Lambert-St Louis

Mon 10/20

10:15 pm-11:20 pm

Nonstop1h 05m

$157

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Mon 10/20

10:50 am-11:50 am

Nonstop1h 00m

Lambert-St Louis

Wed 10/22

2:45 pm-3:50 pm

Nonstop1h 05m

$157

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 10/8

10:40 am-11:45 am

Nonstop1h 05m

Lambert-St Louis

Wed 10/15

2:45 pm-3:50 pm

Nonstop1h 05m

$157

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 10/1

11:30 am-12:35 pm

Nonstop1h 05m

Lambert-St Louis

Sat 10/4

8:25 am-9:30 am

Nonstop1h 05m

$157

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 10/8

7:02 pm-9:07 am

1 stop14h 05m

Lambert-St Louis

Wed 10/15

7:52 pm-3:15 pm

2 stops19h 23m

$197

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Mon 9/22

3:01 pm-9:06 am

1 stop18h 05m

Lambert-St Louis

Wed 9/24

7:55 pm-1:48 pm

1 stop17h 53m

$202

ColumbiaSt. Louis

COU - STL

COUSTL

Columbia Regional

Wed 10/8

1:49 pm-11:54 pm

1 stop10h 05m

Lambert-St Louis

Wed 10/15

8:04 pm-9:31 pm

1 stop25h 27m

$269

ColumbiaSt. Louis

COU - STL

COUSTL

Columbia Regional

Wed 11/12

11:20 am-8:23 pm

1 stop9h 03m

Lambert-St Louis

Sat 11/15

8:39 am-9:55 pm

1 stop13h 16m

$269

ColumbiaSt. Louis

COU - STL

COUSTL

Columbia Regional

Thu 10/9

11:37 am-8:26 pm

1 stop8h 49m

Lambert-St Louis

Thu 10/16

6:00 am-9:31 pm

1 stop15h 31m

$301

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 23 results
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Best time to book a flight from Missouri to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Missouri 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 Missouri to St. Louis

What is the cheapest month to book a flight from Missouri to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Missouri to St. Louis (average of $311). Flying from Missouri to St. Louis in March is currently the most expensive (average of $356). 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 MO to STL?

Find hourly flight availability from Missouri 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 September 11, 2025.

When flying from Missouri to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 September 11, 2025.
Get a feel of what it's like to fly with Southwest from Missouri to St. Louis 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.
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Missouri 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 Missouri?

    If you book a flight to St. Louis from Missouri, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • How long is the flight from Missouri to St. Louis?

    A quick flight from Missouri to St. Louis can take about 1h. Southwest provides one of the quickest options available for as low as $157. There are 236 mi between Missouri and St. Louis. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Missouri to St. Louis?

    The most popular route from Missouri to St. Louis is Kansas City - Lambert-St Louis. You may also consider Columbia Regional - Lambert-St Louis or Fort Leonard Wood Waynesville Regional - Lambert-St Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Missouri 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.

  • What is the cheapest month to book a flight from Missouri to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Missouri to St. Louis (average of $311). Flying from Missouri to St. Louis in March is currently the most expensive (average of $356). 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.

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
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Alternative routes for Missouri to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Missouri to St. Louis

Discover the top airline that operate flights from Missouri 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$97Average$354FlexibilityNo cancel feeOn-time63%

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