Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Missouri to St. Louis from $94

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to St. Louis departing on 5/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Missouri to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:46 pm - 9:48 am
MCI
-
STL
13h 02m
1 stop
Frontier Logo
8:16 pm - 7:58 pm
STL
-
MCI
23h 42m
1 stop
$191Frontier
Thu, Apr 9 - Fri, Apr 10
Southwest Logo
12:05 pm - 1:10 pm
MCI
-
STL
1h 05mnonstop
Southwest Logo
8:55 pm - 10:00 pm
STL
-
MCI
1h 05mnonstop
$255Southwest
Mon, May 4 - Wed, May 6
Southwest Logo
5:35 pm - 11:25 pm
MCI
-
STL
5h 50m
1 stop
Southwest Logo
8:30 am - 9:40 am
STL
-
MCI
1h 10mnonstop
$257Southwest
Mon, May 4 - Wed, May 6
Southwest Logo
7:05 pm - 10:45 pm
MCI
-
STL
3h 40m
1 stop
Southwest Logo
5:35 am - 9:15 am
STL
-
MCI
3h 40m
1 stop
$261Southwest
Mon, May 4 - Wed, May 6
Frontier Logo
8:43 pm - 9:48 am
MCI
-
STL
13h 05m
1 stop
Frontier Logo
8:16 pm - 7:33 pm
STL
-
MCI
23h 17m
1 stop
$267Frontier
Tue, Apr 7 - Sat, Apr 11
Frontier Logo
1:45 pm - 7:23 pm
MCI
-
STL
5h 38m
1 stop
Frontier Logo
8:08 pm - 1:00 pm
STL
-
MCI
16h 52m
1 stop
$281Frontier
Thu, Jun 11 - Fri, Jun 12
Frontier Logo
2:51 pm - 6:50 am
MCI
-
STL
39h 59m
2 stops
Frontier Logo
8:17 pm - 1:30 pm
STL
-
MCI
17h 13m
1 stop
$289Frontier
Sat, Apr 18 - Sat, Apr 25
American Airlines Logo
6:00 am - 8:27 am
COU
-
STL
26h 27m
1 stop
American Airlines Logo
8:54 am - 3:58 pm
STL
-
COU
7h 04m
1 stop
$491American Airlines
Fri, Apr 17 - Fri, Apr 24
American Airlines Logo
6:00 am - 4:41 pm
COU
-
STL
10h 41m
1 stop
American Airlines Logo
7:05 am - 9:30 pm
STL
-
COU
14h 25m
1 stop
$579American Airlines
Sun, Apr 19 - Thu, Apr 23
United Airlines Logo
11:30 am - 10:45 am
COU
-
STL
23h 15m
1 stop
United Airlines Logo
9:16 am - 10:01 pm
STL
-
COU
12h 45m
1 stop
$996United Airlines
Tue, Apr 7 - Sat, Apr 11

Frontier flights from Missouri to St. Louis

Our best Frontier deals on Missouri to St. Louis flight tickets
Frontier
Apr 9
MCI8:46 pmKansas City
13h 02m
1 stop
STL9:48 amLambert-St Louis
Apr 10
STL8:16 pmLambert-St Louis
23h 42m
1 stop
MCI7:58 pmKansas City
$191
Frontier
Mar 26
MCI8:40 pmKansas City
13h 09m
1 stop
STL9:49 amLambert-St Louis
Mar 27
STL8:12 pmLambert-St Louis
23h 43m
1 stop
MCI7:55 pmKansas City
$261
Frontier
Apr 7
MCI8:43 pmKansas City
13h 05m
1 stop
STL9:48 amLambert-St Louis
Apr 11
STL8:16 pmLambert-St Louis
23h 17m
1 stop
MCI7:33 pmKansas City
$267

Southwest flights from Missouri to St. Louis

Our best Southwest deals on Missouri to St. Louis flight tickets
Southwest
May 4
MCI12:05 pmKansas City
1h 05m
STL1:10 pmLambert-St Louis
May 6
STL8:55 pmLambert-St Louis
1h 05m
MCI10:00 pmKansas City
$255
Southwest
May 4
MCI5:35 pmKansas City
5h 50m
1 stop
STL11:25 pmLambert-St Louis
May 6
STL8:30 amLambert-St Louis
1h 10m
MCI9:40 amKansas City
$257
Southwest
May 4
MCI7:05 pmKansas City
3h 40m
1 stop
STL10:45 pmLambert-St Louis
May 6
STL5:35 amLambert-St Louis
3h 40m
1 stop
MCI9:15 amKansas City
$261

momondo 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, momondo users made 832,500 searches. Data last updated March 25, 2026.
Use the filters below to find and compare flights from Missouri to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Thu 4/9

8:46 pm-9:48 am

1 stop13h 02m

Lambert-St Louis

Fri 4/10

8:16 pm-7:58 pm

1 stop23h 42m

$191
Quickest round-trip

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Mon 5/4

12:05 pm-1:10 pm

Nonstop1h 05m

Lambert-St Louis

Wed 5/6

8:55 pm-10:00 pm

Nonstop1h 05m

$255

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Mon 5/4

5:35 pm-11:25 pm

1 stop5h 50m

Lambert-St Louis

Wed 5/6

8:30 am-9:40 am

Nonstop1h 10m

$257

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Mon 5/4

7:05 pm-10:45 pm

1 stop3h 40m

Lambert-St Louis

Wed 5/6

5:35 am-9:15 am

1 stop3h 40m

$261

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Tue 4/7

8:43 pm-9:48 am

1 stop13h 05m

Lambert-St Louis

Sat 4/11

8:16 pm-7:33 pm

1 stop23h 17m

$267

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Thu 6/11

1:45 pm-7:23 pm

1 stop5h 38m

Lambert-St Louis

Fri 6/12

8:08 pm-1:00 pm

1 stop16h 52m

$281

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Sat 4/18

2:51 pm-6:50 am

2 stops39h 59m

Lambert-St Louis

Sat 4/25

8:17 pm-1:30 pm

1 stop17h 13m

$289

ColumbiaSt. Louis

COU - STL

COUSTL

Columbia Regional

Fri 4/17

6:00 am-8:27 am

1 stop26h 27m

Lambert-St Louis

Fri 4/24

8:54 am-3:58 pm

1 stop7h 04m

$491

ColumbiaSt. Louis

COU - STL

COUSTL

Columbia Regional

Sun 4/19

6:00 am-4:41 pm

1 stop10h 41m

Lambert-St Louis

Thu 4/23

7:05 am-9:30 pm

1 stop14h 25m

$579

ColumbiaSt. Louis

COU - STL

COUSTL

Columbia Regional

Tue 4/7

11:30 am-10:45 am

1 stop23h 15m

Lambert-St Louis

Sat 4/11

9:16 am-10:01 pm

1 stop12h 45m

$996

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to St. Louis from

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

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

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Thursday when prices can be found for as low as $382. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $442. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Missouri in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $380 when looking at flights departing in the afternoon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $433 per ticket.

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

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

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

There is only 1 cabin class available to choose from on Missouri to Lambert-St Louis 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 Missouri to St. Louis flights?

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

Cheap Missouri to St. Louis flight deals and tips

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

Best Price Found

$183

Fastest flight time

1h 05m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Missouri in the past 72 hours is $183. The best round-trip flight deal from Missouri to St. Louis found on momondo in the last 72 hours is $386.
The fastest flight from Missouri to St. Louis takes 1h 05m
Direct flights go from Missouri to St. Louis every day.
There is 1 airport in St. Louis. From Missouri there are direct flights to Lambert-St Louis (STL).
Search flight deals

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Missouri to St. Louis?

Best airlines flying from Missouri to St. Louis

Compare and see reviews for airlines that fly from Missouri to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $107Free CancellationRating
8.0
4,332 reviews
Search Southwest flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Collinsville
St. Peters
Wentzville
Alton
Fenton
Farmington
Clayton
Festus
Edwardsville
Eureka
Litchfield
Shrewsbury
Grafton

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Missouri to St. Louis for you.

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

Yes. momondo enables you to select and highlight flights to St. Louis from Missouri with this policy.

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

Once all potential Missouri to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to St. Louis from Missouri are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 4/24
Fri 5/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States