$80 Find Cheap Flights from St. Louis to Kansas City - Compare and Save

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

• Earliest: departs at 7:55 am and lands at 9:04 am
• Latest: departs at 10:45 pm and lands at 11:54 pm.

The flight takes about 1h 09m.

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

A nonstop flight from St. Louis to Kansas City takes 1h 09m, 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 St. Louis to Kansas City range from $341 to $758, with an average of $513 over the past 12 months. Anything below $341 counts as a good deal.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $179 round-trip via Denver Intl (DEN), compared to $513 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 St. Louis to Kansas City flights, with 50% of flights leaving in that window. Afternoon departures account for 50%, evening flights for 0%, and night flights for 0%.

One-way fares from St. Louis to Kansas City are currently lower than usual. Average one-way flight prices are about $106, which is 57% below the typical average for this route.

Kansas City Airport (MCI) hosts 5 major car rental companies, with daily rates starting from around $26 for economy cars. Top options include:
• Dollar
• Hertz
• Avis
• Alamo
• Sixt

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

One-stop flights from St. Louis to Kansas City most commonly connect through:

• Chicago O'Hare Intl (ORD) - 50% of one-stop connections
• Denver Intl (DEN) - 17% of one-stop connections
• Chicago Midway (MDW) - 17% of one-stop connections
• Seattle/Tacoma Intl (SEA) - 17% of one-stop connections

Chicago O'Hare Intl (ORD) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 44% on the St. Louis to Kansas City route. Tuesday is the cheapest departure day at $390 round-trip on average, while Wednesday is the most expensive at $695, a difference of $305. 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 St. Louis and Kansas City.

Flying via Chicago Midway (MDW) gives the shortest average 1-stop total travel time at 3h 57m, compared with 4h 22m via Chicago O'Hare Intl (ORD) and 18h 13m via Denver Intl (DEN).

Some of the most popular sights in Kansas City are Kansas City Stadium, Kansas City Convention Center and Worlds of Fun. These are among the most viewed places in Kansas City on KAYAK.

Among airlines operating St. Louis to Kansas City 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 travelers should check the fare details before booking.