Cheap flights from Kansas City to St Louis

Compare Kansas City to St Louis flight deals

Find the cheapest month or even day of the year to fly to St Louis

Book the best St Louis fare with no extra fees

Flight deals from Kansas City to St Louis

Looking for a cheap last-minute deal or the best round-trip flight from Kansas City to St Louis? Find the lowest prices on one-way and round-trip tickets right here.

When is the cheapest time to fly from Kansas City to St Louis?

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kansas City to St Louis flights are currently cheapest in November.

Direct flights from Kansas City to St Louis

Kansas City to St Louis: Alternative routes

Compare routes from Kansas City to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Kansas City to St Louis: Flight information

The things to know before you go.
Cheapest flight foundC$166
Cheapest month to flyNovember
Average flight time1 hr, 6 mins
Most popular airlineSouthwest Airlines
Average flights per week24

Finding cheap flights from Kansas City to St Louis: Frequently asked questions

The best price we found for a round-trip flight from Kansas City to St Louis is C$166. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 6 minutes is the average flight time from Kansas City to St Louis.
Southwest Airlines flies direct from Kansas City to St Louis.
There are 24 flights per week flying from Kansas City to St Louis, as of October 2024.
The cheapest month to fly from Kansas City to St Louis is usually October 2024.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Kansas City to St Louis Airport on Thursday, November 14, 2024.
Yes – the average flight time is 1 hour and 6 minutes.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.

How to find cheap flights to St Louis from Kansas City

Looking for cheap tickets from Kansas City to St Louis? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit "search." From Delta Air Lines to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Kansas City to St Louis. And with us, there are no hidden fees – what you see is what you pay.
  • Compare flight deals to St Louis from Kansas City from over 1,000 providers. Then choose the cheapest plane tickets or fastest journeys.
  • Flex your dates to find the best Kansas City–St Louis ticket prices. If you're flexible when it comes to your travel dates, use Skyscanner's "Whole month" tool to find the cheapest month, and even day to fly to St Louis from Kansas City.
  • Set up a Price Alert. You can easily track the fare of your cheap Kansas City–St Louis flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between Kansas City and St Louis? Make sure to tick "Direct flights only" when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business Class flights from Kansas City and St Louis. We scour the Internet for the best Business, Premium Economy and First Class flight fares to St Louis, too. Check the difference in price as you search – you might just stumble on a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for Kansas City to St Louis flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save the next time you travel.
  • Combine your flight to St Louis from Kansas City with hotels and car rental

    Once you've secured your cheap flight ticket from Kansas City to St Louis, discover the best prices and exclusive rates for hotels in St Louis or nearby. You can also compare hundreds of car rental companies at once so you get the best car rental price for your trip.


Prices shown on this page are estimated lowest prices only. Found in the last 45 days.