What is the cheapest airline that flies from Lambert-St Louis to Missouri?

United Airlines, Frontier, and Southwest are the most popular carriers operating from Lambert-St Louis to Missouri

How many flights depart from St. Louis to Missouri on average per week?

As of November 2026, 14 flights take off from St. Louis and land in Missouri each week. The most common flight departure day for this route is Mon, with 21% of weekly flights taking off on this day.

How many flights depart from St. Louis to Missouri on average per day?

2 flights are operational daily from St. Louis to Missouri as of November 2026. The most popular departure time for this route is 8:00AM, with 36% of flights per day taking off at noon.

When did momondo last update prices for flights from Lambert-St Louis Airport to Missouri?

Prices for flights from Lambert-St Louis Airport to Missouri refresh daily.

How many operators does momondo search for flights from Lambert-St Louis Airport to Missouri?

There is 1 operator available for flights from Lambert-St Louis Airport to Missouri as of November 2026.

How old do you have to be to fly from Lambert-St Louis Airport to Missouri?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Missouri.

What documentation or ID do you need to fly to Missouri?

The travel and health documents you'll need for your trip to Missouri may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Missouri. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$104 Cheap Flights from St. Louis to Missouri in 2026/27

Find the cheapest flights from St. Louis to Missouri

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:30 am - 9:35 amSTL Lambert-St Louis-MCI Kansas City

1h 05mnonstop

12:40 pm - 1:45 pmMCI Kansas City-STL Lambert-St Louis

1h 05mnonstop

$117Southwest

Fri, Dec 4 - Fri, Dec 11

8:30 am - 9:35 amSTL Lambert-St Louis-MCI Kansas City

1h 05mnonstop

6:45 am - 7:55 amMCI Kansas City-STL Lambert-St Louis

1h 10mnonstop

$117Southwest

Thu, Dec 10 - Sat, Dec 12

7:58 pm - 7:35 pmSTL Lambert-St Louis-MCI Kansas City

23h 37m1 stop Denver Intl

8:32 pm - 10:57 amMCI Kansas City-STL Lambert-St Louis

14h 25m1 stop Denver Intl

$153Frontier

Fri, Dec 4 - Fri, Dec 11

12:40 pm - 1:45 pmSTL Lambert-St Louis-MCI Kansas City

1h 05mnonstop

12:40 pm - 1:45 pmMCI Kansas City-STL Lambert-St Louis

1h 05mnonstop

$191Southwest

Fri, Dec 4 - Fri, Dec 11

8:15 pm - 9:30 pmSTL Lambert-St Louis-MCI Kansas City

1h 15mnonstop

2:50 pm - 7:55 pmMCI Kansas City-STL Lambert-St Louis

5h 05m1 stop Denver Intl

$201Southwest

Fri, Dec 4 - Mon, Dec 7

8:30 am - 1:10 pmSTL Lambert-St Louis-MCI Kansas City

4h 40m1 stop Milwaukee-Mitchell

6:45 am - 7:55 amMCI Kansas City-STL Lambert-St Louis

1h 10mnonstop

$201Southwest

Thu, Dec 10 - Sat, Dec 12

8:15 pm - 9:30 pmSTL Lambert-St Louis-MCI Kansas City

1h 15mnonstop

5:35 am - 10:05 amMCI Kansas City-STL Lambert-St Louis

4h 30m1 stop Chicago Midway

$201Southwest

Fri, Dec 4 - Fri, Dec 11

7:58 pm - 7:35 pmSTL Lambert-St Louis-MCI Kansas City

23h 37m1 stop Denver Intl

8:32 pm - 10:57 amMCI Kansas City-STL Lambert-St Louis

14h 25m1 stop Denver Intl

$230Frontier

Fri, Dec 4 - Fri, Dec 11

8:15 pm - 9:30 pmSTL Lambert-St Louis-MCI Kansas City

1h 15mnonstop

4:20 pm - 5:20 pmMCI Kansas City-STL Lambert-St Louis

1h 00mnonstop

$235Southwest

Fri, Dec 4 - Mon, Dec 7

8:15 pm - 9:30 pmSTL Lambert-St Louis-MCI Kansas City

1h 15mnonstop

9:05 am - 3:15 pmMCI Kansas City-STL Lambert-St Louis

6h 10m1 stop Nashville Intl

$245Southwest

Fri, Dec 4 - Fri, Dec 11

Cheap last minute flights

Enter your travel dates to find the best prices.

4:18 pm - 7:47 pmSTL Lambert-St Louis-MCI Kansas City

27h 29m1 stop Denver Intl

1:44 pm - 12:33 pmMCI Kansas City-STL Lambert-St Louis

22h 49m1 stop Las Vegas Harry Reid Intl

$488Frontier

Wed, Nov 11 - Sun, Nov 15

7:59 pm - 7:47 pmSTL Lambert-St Louis-MCI Kansas City

23h 48m1 stop Denver Intl

8:43 pm - 7:14 pmMCI Kansas City-STL Lambert-St Louis

22h 31m1 stop Denver Intl

$520Frontier

Fri, Nov 13 - Sun, Nov 15

11:35 am - 4:03 pmSTL Lambert-St Louis-MCI Kansas City

4h 28m1 stop Chicago O'Hare Intl

7:25 pm - 11:55 pmMCI Kansas City-STL Lambert-St Louis

4h 30m1 stop Chicago O'Hare Intl

$540American Airlines

Tue, Nov 10 - Sun, Nov 15

1:20 pm - 5:34 pmSTL Lambert-St Louis-MCI Kansas City

4h 14m1 stop Chicago O'Hare Intl

7:25 pm - 11:55 pmMCI Kansas City-STL Lambert-St Louis

4h 30m1 stop Chicago O'Hare Intl

$540American Airlines

Sat, Nov 14 - Sun, Nov 15

8:15 pm - 12:24 amSTL Lambert-St Louis-MCI Kansas City

4h 09m1 stop Chicago O'Hare Intl

7:25 pm - 11:55 pmMCI Kansas City-STL Lambert-St Louis

4h 30m1 stop Chicago O'Hare Intl

$540American Airlines

Wed, Nov 11 - Sun, Nov 15

7:26 am - 11:51 amSTL Lambert-St Louis-MCI Kansas City

4h 25m1 stop Chicago O'Hare Intl

7:25 pm - 11:55 pmMCI Kansas City-STL Lambert-St Louis

4h 30m1 stop Chicago O'Hare Intl

$637American Airlines

Thu, Nov 12 - Sun, Nov 15

10:35 am - 11:45 amSTL Lambert-St Louis-MCI Kansas City

1h 10mnonstop

12:40 pm - 1:45 pmMCI Kansas City-STL Lambert-St Louis

1h 05mnonstop

$813Southwest

Sat, Nov 14 - Sun, Nov 15

5:05 pm - 6:20 pmSTL Lambert-St Louis-MCI Kansas City

1h 15mnonstop

6:30 pm - 12:35 amMCI Kansas City-STL Lambert-St Louis

6h 05m1 stop Dallas Love Field

$813Southwest

Sat, Nov 14 - Sun, Nov 15

4:00 pm - 9:50 pmSTL Lambert-St Louis-MCI Kansas City

5h 50m1 stop Dallas Love Field

8:20 am - 9:30 amMCI Kansas City-STL Lambert-St Louis

1h 10mnonstop

$813Southwest

Fri, Nov 13 - Sun, Nov 15

9:45 pm - 11:00 pmSTL Lambert-St Louis-MCI Kansas City

1h 15mnonstop

6:05 pm - 7:10 pmMCI Kansas City-STL Lambert-St Louis

1h 05mnonstop

$813Southwest

Fri, Nov 13 - Sun, Nov 15

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Southwest flights from St. Louis to Missouri

Our best Southwest deals on St. Louis to Missouri flight tickets

Southwest

Dec 4

STL8:30 amLambert-St Louis

1h 05m

MCI9:35 amKansas City

Dec 11

MCI12:40 pmKansas City

1h 05m

STL1:45 pmLambert-St Louis

$117

Southwest

Dec 4

STL12:40 pmLambert-St Louis

1h 05m

MCI1:45 pmKansas City

Dec 11

MCI12:40 pmKansas City

1h 05m

STL1:45 pmLambert-St Louis

$191

Southwest

Dec 4

STL8:15 pmLambert-St Louis

1h 15m

MCI9:30 pmKansas City

Dec 7

MCI2:50 pmKansas City

5h 05m

1 stop

STL7:55 pmLambert-St Louis

$201

Frontier flights from St. Louis to Missouri

Our best Frontier deals on St. Louis to Missouri flight tickets

Frontier

Dec 4

STL7:58 pmLambert-St Louis

23h 37m

1 stop

MCI7:35 pmKansas City

Dec 11

MCI8:32 pmKansas City

14h 25m

1 stop

STL10:57 amLambert-St Louis

$153

Frontier

Dec 4

STL7:58 pmLambert-St Louis

23h 37m

1 stop

MCI7:35 pmKansas City

Dec 11

MCI8:32 pmKansas City

14h 25m

1 stop

STL10:57 amLambert-St Louis

$230

Frontier

Dec 16

STL7:54 pmLambert-St Louis

24h 02m

1 stop

MCI7:56 pmKansas City

Dec 18

MCI8:51 pmKansas City

21h 17m

1 stop

STL6:08 pmLambert-St Louis

$271

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

St. LouisKansas City

STL Lambert-St Louis - MCI Kansas City

STLMCI

Lambert-St Louis

Fri 12/4

8:30 am-9:35 am

Nonstop1h 05m

Kansas City

Fri 12/11

12:40 pm-1:45 pm

Nonstop1h 05m

$117

St. LouisKansas City

STL Lambert-St Louis - MCI Kansas City

STLMCI

Lambert-St Louis

Thu 12/10

8:30 am-9:35 am

Nonstop1h 05m

Kansas City

Sat 12/12

6:45 am-7:55 am

Nonstop1h 10m

$117

St. LouisKansas City

STL Lambert-St Louis - MCI Kansas City

STLMCI

Lambert-St Louis

Fri 12/4

7:58 pm-7:35 pm

1 stop23h 37m

Kansas City

Fri 12/11

8:32 pm-10:57 am

1 stop14h 25m

$153

St. LouisKansas City

STL Lambert-St Louis - MCI Kansas City

STLMCI

Lambert-St Louis

Fri 12/4

12:40 pm-1:45 pm

Nonstop1h 05m

Kansas City

Fri 12/11

12:40 pm-1:45 pm

Nonstop1h 05m

$191

St. LouisKansas City

STL Lambert-St Louis - MCI Kansas City

STLMCI

Lambert-St Louis

Fri 12/4

8:15 pm-9:30 pm

Nonstop1h 15m

Kansas City

Mon 12/7

2:50 pm-7:55 pm

1 stop5h 05m

$201

St. LouisKansas City

STL Lambert-St Louis - MCI Kansas City

STLMCI

Lambert-St Louis

Thu 12/10

8:30 am-1:10 pm

1 stop4h 40m

Kansas City

Sat 12/12

6:45 am-7:55 am

Nonstop1h 10m

$201

St. LouisKansas City

STL Lambert-St Louis - MCI Kansas City

STLMCI

Lambert-St Louis

Fri 12/4

8:15 pm-9:30 pm

Nonstop1h 15m

Kansas City

Fri 12/11

5:35 am-10:05 am

1 stop4h 30m

$201

St. LouisKansas City

STL Lambert-St Louis - MCI Kansas City

STLMCI

Lambert-St Louis

Fri 12/4

7:58 pm-7:35 pm

1 stop23h 37m

Kansas City

Fri 12/11

8:32 pm-10:57 am

1 stop14h 25m

$230

St. LouisKansas City

STL Lambert-St Louis - MCI Kansas City

STLMCI

Lambert-St Louis

Fri 12/4

8:15 pm-9:30 pm

Nonstop1h 15m

Kansas City

Mon 12/7

4:20 pm-5:20 pm

Nonstop1h 00m

$235

St. LouisKansas City

STL Lambert-St Louis - MCI Kansas City

STLMCI

Lambert-St Louis

Fri 12/4

8:15 pm-9:30 pm

Nonstop1h 15m

Kansas City

Fri 12/11

9:05 am-3:15 pm

1 stop6h 10m

$245

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Missouri

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Missouri?

In general, November is the cheapest month to fly from St. Louis to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $181. If you aren’t able to travel to Missouri during the month of November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $181.

What is the cheapest Lambert-St Louis to Missouri flight route?

Fly from Lambert-St Louis to Kansas City for the best Lambert-St Louis - Missouri flight prices

What cabin class options are available on St. Louis to Missouri flights?

There is only 1 cabin class available to choose from on St. Louis to Missouri flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Missouri flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Missouri.

Cheap St. Louis to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Missouri

Best Price Found	$104
Fastest flight time	1h 10m
Direct flights	Every day
Airports in Missouri	55 airports

The best one-way flight to Missouri from St. Louis in the past 72 hours is $104. The best round-trip flight deal from St. Louis to Missouri found on momondo in the last 72 hours is $117.

The fastest flight from St. Louis to Missouri takes 1h 10m

Direct flights go from St. Louis to Missouri every day.

There are 55 airports in Missouri. From St. Louis there are direct flights to Kansas City (MCI).

Search flight deals

Frequently asked questions about flying from St. Louis to Missouri

When did momondo last update prices for flights from Lambert-St Louis Airport to Missouri?
Prices for flights from Lambert-St Louis Airport to Missouri refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Missouri?
There is 1 operator available for flights from Lambert-St Louis Airport to Missouri as of November 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Missouri?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Missouri.
What documentation or ID do you need to fly to Missouri?
The travel and health documents you'll need for your trip to Missouri may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Missouri. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from St. Louis to Missouri?
momondo data reveals that the most frequently booked plane model on the route from St. Louis to Missouri is Boeing 737 MAX 8, representing 23.08% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 16.92%, Airbus A319 at 9.23%, and Embraer 175 (Enhanced Winglets) at 6.15%.

Best airlines flying from St. Louis to Missouri

Compare and see reviews for airlines that fly from St. Louis to Missouri with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $249	Free Cancellation	Rating 8.0 4,219 reviews		Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Missouri?

It is quick and easy to find St. Louis to Missouri flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Missouri that suits you.

Can I find flights from St. Louis to Missouri with flexible booking policies on momondo?

Flights from St. Louis to Missouri with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Missouri?

momondo helps you find the best flight between St. Louis and Missouri by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to Missouri right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Missouri, momondo offers a useful price alert feature which will track prices for flights to Missouri from St. Louis and alert you when they change.