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St. Louis

$49+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — STL
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
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 julio 30, 2025.

Round-trip from

$97
(Southwest)

One-way from

$49
(Southwest)

Popular in

February

Cheapest in

March

Average price

$390

Good round-trip deal

$282 or less

Good one-way deal

$135 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, 10% potential price rise
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Cheapest flight prices on average. 6% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 30, 2025.

This Southwest deal was found by Cheapflights users on 7/30. 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.
mar. 8/266:15 amMCI - STL
Nonstop1h 05mSouthwest
mar. 9/210:25 amSTL - MCI
Nonstop1h 05mSouthwest
Deal found 7/30$97
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/252:18 pmMCI - STL
1 stop18h 53mFrontier
mié. 9/37:54 pmSTL - MCI
1 stop17h 54mFrontier
Deal found 7/30$195
This American Airlines deal was found by Cheapflights users on 7/29. 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.
lun. 8/183:17 pmMCI - STL
1 stop3h 52mAmerican Airlines
mar. 8/197:23 amSTL - MCI
1 stop13h 25mAmerican Airlines
Deal found 7/29$304
This Mytrip deal was found by Cheapflights users on 7/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/236:00 amMCI - STL
2 stops27h 40mSpirit Airlines
lun. 8/252:30 pmSTL - MCI
3 stops32h 23mSpirit Airlines
Deal found 7/27$327
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/235:50 amMCI - STL
1 stop13h 17mDelta
mar. 9/23:36 pmSTL - MCI
1 stop8h 18mDelta
Deal found 7/30$383
This American Airlines deal was found by Cheapflights users on 7/28. 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.
vie. 10/1711:37 amCOU - STL
1 stop8h 49mAmerican Airlines
sáb. 10/187:16 amSTL - COU
1 stop12h 03mAmerican Airlines
Deal found 7/28$389
This United Airlines deal was found by Cheapflights users on 7/28. 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.
mié. 9/247:30 amMCI - STL
1 stop15h 05mUnited Airlines
vie. 9/2612:25 pmSTL - MCI
1 stop25h 55mUnited Airlines
Deal found 7/28$407
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/2112:30 pmTBN - STL
3 stops25h 02mMultiple Airlines
lun. 8/252:30 pmSTL - TBN
3 stops21h 30mMultiple Airlines
Deal found 7/28$431

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 julio 30, 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

mar. 8/26

6:15 am-7:20 am

Nonstop1h 05m

Lambert-St Louis

mar. 9/2

10:25 am-11:30 am

Nonstop1h 05m

$97

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

lun. 8/25

2:18 pm-9:11 am

1 stop18h 53m

Lambert-St Louis

mié. 9/3

7:54 pm-1:48 pm

1 stop17h 54m

$195

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

lun. 8/18

3:17 pm-7:09 pm

1 stop3h 52m

Lambert-St Louis

mar. 8/19

7:23 am-8:48 pm

1 stop13h 25m

$304

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

sáb. 8/23

6:00 am-9:40 am

2 stops27h 40m

Lambert-St Louis

lun. 8/25

2:30 pm-10:53 pm

3 stops32h 23m

$327

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

sáb. 8/23

11:30 am-10:02 pm

1 stop10h 32m

Lambert-St Louis

sáb. 8/30

6:00 am-6:56 pm

1 stop12h 56m

$383

ColumbiaSt. Louis

COU - STL

COUSTL

Columbia Regional

vie. 10/17

11:37 am-8:26 pm

1 stop8h 49m

Lambert-St Louis

sáb. 10/18

7:16 am-7:19 pm

1 stop12h 03m

$389

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

mié. 9/24

7:30 am-10:35 pm

1 stop15h 05m

Lambert-St Louis

vie. 9/26

12:25 pm-2:20 pm

1 stop25h 55m

$407

Fort Leonard WoodSt. Louis

TBN - STL

TBNSTL

Fort Leonard Wood Waynesville Regional

jue. 8/21

12:30 pm-1:32 pm

3 stops25h 02m

Lambert-St Louis

lun. 8/25

2:30 pm-12:00 pm

3 stops21h 30m

$431

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

mar. 10/28

4:50 pm-5:55 pm

Nonstop1h 05m

$49

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

dom. 9/7

3:01 pm-9:06 am

1 stop18h 05m

$107

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 16 results
1
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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 julio 30, 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 julio 30, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines 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
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,048 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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.

  • What are the cheapest airlines to fly from Missouri to St. Louis one-way?

    The cheapest airlines for a one-way flight from Missouri to St. Louis are Southwest ($49), Frontier ($99), and American Airlines ($134).

  • 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
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Festus
Farmington

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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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$97Average$364FlexibilityNo cancel feeOn-time63%

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