$59 Find Cheap Flights from Kansas City to St. Louis - Compare and Save

These are the earliest and latest flight times available from Kansas City to St. Louis:

• Earliest: departs at 5:55 am and lands at 7:01 am
• Latest: departs at 6:55 pm and lands at 8:01 pm.

The flight takes about 1h 06m.

Only Economy Class is available on flights from Kansas City to St. Louis.

A nonstop flight from Kansas City to St. Louis takes 1h 06m, covering 236 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Kansas City to St. Louis range from $406 to $779, with an average of $584 over the past 12 months. Anything below $406 counts as a good deal.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $472 round-trip via Chicago O'Hare Intl (ORD), compared to $613 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $45–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Southwest. Other aircraft seen on the route include Boeing 737-800 Passenger/BBJ2 (winglets) variants.

Morning is the busiest departure period on Kansas City to St. Louis flights, with 50% of flights leaving in that window. Afternoon departures account for 50%, evening flights for 0%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $117 to $972. That means the highest observed fare was about 8x higher than the lowest one.

One-way fares from Kansas City to St. Louis are currently lower than usual. Average one-way flight prices are about $86, which is 70% below the typical average for this route.

Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates averaging $78 for economy cars. Top options include:

• Hertz
• Budget
• Alamo
• Enterprise Rent-A-Car
• Payless

Flights from Kansas City to St. Louis usually depart from Kansas City (MCI) and arrive at Lambert-St Louis (STL).

Most connecting flights from Kansas City to St. Louis pass through Chicago O'Hare Intl (ORD), which handles 100% of one-stop traffic on this route.

Yes. Flexible dates can save you up to 45% on flights from Kansas City to St. Louis. Thursday is the cheapest departure day at $411 round-trip on average, while Tuesday is the most expensive at $740, a difference of $329.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Only Southwest operates flights between Kansas City and St. Louis.

Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

Among airlines operating Kansas City to St. Louis flights:

• Southwest: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Southwest: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.