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Cheap Flights from St. Louis to Missouri

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
Kansas City
Kansas City
1h 05mNonstop
from $219per person
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Book Cheap St. Louis to Missouri Plane Tickets

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Missouri

Thu, Dec 3 - Sat, Dec 5
Southwest Logo
8:15 pm - 9:30 pmSTL  Lambert-St Louis-MCI Kansas City
1h 15mnonstop
Southwest Logo
2:25 pm - 8:25 pmMCI  Kansas City-STL Lambert-St Louis
6h 00m1 stop Denver Intl
$219Southwest
Wed, Dec 9 - Wed, Dec 16
United Airlines Logo
6:30 am - 10:27 amSTL  Lambert-St Louis-MCI Kansas City
3h 57m1 stop Chicago O'Hare Intl
United Airlines Logo
1:04 pm - 5:05 pmMCI  Kansas City-STL Lambert-St Louis
4h 01m1 stop Chicago O'Hare Intl
$229United Airlines
Thu, Dec 3 - Sat, Dec 5
United Airlines Logo
6:30 am - 10:27 amSTL  Lambert-St Louis-MCI Kansas City
3h 57m1 stop Chicago O'Hare Intl
United Airlines Logo
3:16 pm - 9:29 pmMCI  Kansas City-STL Lambert-St Louis
6h 13m1 stop Chicago O'Hare Intl
$246United Airlines
Wed, Dec 16 - Fri, Dec 18
Frontier Logo
7:54 pm - 7:56 pmSTL  Lambert-St Louis-MCI Kansas City
24h 02m1 stop Denver Intl
Frontier Logo
8:51 pm - 6:08 pmMCI  Kansas City-STL Lambert-St Louis
21h 17m1 stop Denver Intl
$271Frontier
Wed, Dec 9 - Wed, Dec 16
Southwest Logo
12:40 pm - 1:45 pmSTL  Lambert-St Louis-MCI Kansas City
1h 05mnonstop
Southwest Logo
8:05 am - 1:40 pmMCI  Kansas City-STL Lambert-St Louis
5h 35m1 stop Washington, D.C. Reagan-National
$298Southwest
Sun, Dec 6 - Sun, Dec 13
Frontier Logo
6:20 pm - 9:35 amSTL  Lambert-St Louis-MCI Kansas City
15h 15m1 stop Orlando
Frontier Logo
8:32 pm - 10:57 amMCI  Kansas City-STL Lambert-St Louis
14h 25m1 stop Denver Intl
$300Frontier
Tue, Dec 8 - Tue, Dec 15
Frontier Logo
6:20 pm - 7:35 pmSTL  Lambert-St Louis-MCI Kansas City
25h 15m2 stops Orlando Denver Intl
Frontier Logo
8:32 pm - 11:04 amMCI  Kansas City-STL Lambert-St Louis
14h 32m1 stop Denver Intl
$307Frontier
Fri, Dec 4 - Sun, Dec 6
Frontier Logo
7:58 pm - 7:35 pmSTL  Lambert-St Louis-MCI Kansas City
23h 37m1 stop Denver Intl
Frontier Logo
8:32 pm - 10:57 amMCI  Kansas City-STL Lambert-St Louis
14h 25m1 stop Denver Intl
$312Frontier
Wed, Dec 9 - Wed, Dec 16
Southwest Logo
8:30 am - 9:35 amSTL  Lambert-St Louis-MCI Kansas City
1h 05mnonstop
Southwest Logo
8:15 am - 9:30 amMCI  Kansas City-STL Lambert-St Louis
1h 15mnonstop
$320Southwest
Wed, Dec 9 - Wed, Dec 16
Frontier Logo
7:54 pm - 7:35 pmSTL  Lambert-St Louis-MCI Kansas City
23h 41m1 stop Denver Intl
Frontier Logo
8:32 pm - 12:41 amMCI  Kansas City-STL Lambert-St Louis
28h 09m2 stops Denver Intl Orlando
$327Frontier
Booking Insights

Price, demand and travel trends for St. Louis to Missouri flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from St. Louis to Missouri recently?

The cheapest fare from St. Louis to Missouri in the last week was $219 round-trip, to Kansas City (MCI).

How do fares into airports in Missouri compare?

Flights from St. Louis to Missouri arrive at a single airport, Kansas City (MCI). Round-trip fares average about $513.

What's the cheapest month to fly from St. Louis to Missouri?

January and November are typically the cheapest months to fly from St. Louis to Missouri, with round-trip fares averaging $181. July and October are usually the most expensive, averaging $865 and $844, respectively.

How do fares from St. Louis to Missouri vary by day of the week?

On average, Tuesday is the cheapest day to fly from St. Louis to Missouri and Wednesday is the most expensive. Looking at the past 12 months of KAYAK data, it's 101% more expensive to fly on a Wednesday compared to Tuesday.

What's the best time of day to fly from St. Louis to Missouri?

It's cheapest to fly to Missouri in the afternoon with average prices of $390. The morning is the most expensive time to fly, with average prices of $548.

Find deals

Key details for St. Louis to Missouri flights

Low season

December

Cheapest flight

$106
Beat the crowds with an average 68% drop in travelers.
The most popular month to fly with an average 87% increase in travelers.
One-way flight from St. Louis to Kansas City

Your St. Louis to Missouri flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from St. Louis to Missouri?

    Yes. Fares from St. Louis to Missouri are low right now. As a rule of thumb, a round-trip under $354 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from St. Louis to Missouri?

    Over the past 12 months, round-trip fares from St. Louis to Missouri have typically cost between $354 and $805.

  • What are the main airports serving Missouri?

    Missouri has 11 airports. 100% of KAYAK users choose Kansas City (MCI) as their arrival airport.

  • Which airlines fly nonstop from St. Louis to Missouri?

    Based on the flight schedule for the next 3 months, just one airline regularly flies nonstop from St. Louis to Missouri: Southwest.

  • Which destinations in Missouri can I fly nonstop from St. Louis?

    Based on the flight schedule for the next 3 months, you can fly nonstop from St. Louis to just one destination in Missouri: Kansas City.

  • Is it cheaper to fly with a layover from St. Louis to Missouri?

    Yes, nonstop flights from St. Louis to Missouri average $513 over the past 12 months. Flights with a layover can cost less, cheapest when connecting through Las Vegas Harry Reid Intl (LAS), with average fares of $430.

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

    Nonstop flights from St. Louis to Missouri take 1h 11m on average. All flights fly into Kansas City (MCI).

  • Which cabin classes are available from St. Louis to Missouri?

    On flights from St. Louis to Missouri you can book Economy Class or First Class.

  • What are some popular landmarks around Missouri?

    Missouri is home to many popular sights. KAYAK travelers' favorites include:

    • Busch Stadium
    • Arrowhead Stadium
    • Enterprise Center
    • Kansas City Convention Center

  • What are the earliest and latest flights from St. Louis to Missouri?

    The earliest nonstop flight from St. Louis to Missouri departs at 7:55 am and the latest leaves at 10:45 pm. Nonstop flights take about 1h 11m.

Your guide to booking St. Louis to Missouri flights

Get tips on when to book, when to fly and what to know before your trip.
  • Flexible with your dates? Fly in January to save some money. It's typically the cheapest month on this route, while flights in July will cost you the most.
  • Fly out on a Tuesday to get the cheapest fares. Avoid Wednesday flights, which are about 101% more expensive.
  • Start your trip in St. Louis, the most popular destination in Missouri. From there, it's easy to continue on to other popular spots such as Kansas City, Branson and Springfield.
  • Whether you're trying to save time or money, Kansas City (MCI) is usually your best option from St. Louis.

Reviews of the top airline flying from St. Louis to Missouri

 
Need help choosing which airline to fly with from St. Louis to Missouri? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4222 reviews
8.0Comfort
7.0Food
7.5Entertainment
8.6Crew
8.1Boarding
Airline reviews

Trash experience on all my flights this week. Delay after delay. The flight I’m waiting for has been delayed 6 times and nearly 3 hours.

2.0 MediocrePhilip, Sep 2026
Read more Southwest reviews

Trash experience on all my flights this week. Delay after delay. The flight I’m waiting for has been delayed 6 times and nearly 3 hours.

Exceptional. The gate crew responded quickly and got me onto this earlier flight as the final passenger, saving me more than four hours of wait time for my reserved flight.

The flight was delayed due to earlier issues at other airports. The crew was excellent & made it a good trip.

Snacks are always pretzels. Why can't you also offer peanuts ?

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Very good. Sad to learn Southwest is going start to charge for bags

Exceptional crew! Friendly and professional. Pleasant attitude and treated everyone with respect.

The flight was promptly on schedule and Southwest delivered everything they promised. No excuses for any shortfalls just 100% ownership of their responsibilities and business. The boarding and seating policy is a complete shambles. What started out as a great idea when Southwest first hit the market has been turned into a disaster due to the lack of integrity in many of the people who fly Southwest and take advantage of Southwest generosity at the expense of their fellow passengers.

Crew was excellent - Plane was fine. Media was good, could use more kid shows; Not a fan of the brownie brittle -- snack could be slightly better.

Left on time and arrived early. Brand new plane and no parts missing. Comfortable seats. The actual Captain spoke prior to the flight and reassured everyone about safety. Crew was so nice and fun. Perfect flight!

More options for your flight from St. Louis to Missouri

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