Kansas City (MCI) to St Louis (STL)
Flight time
≈ 1h 16m
Bearing
98° E
Kansas City (MCI) to St Louis (STL) is 236 miles (380 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies MCI–STL
Filed traffic dataIn May 2026, Southwest Airlines operated the most departures, one of 4 carriers flying nonstop MCI–STL; the Boeing 737-700 was the most common aircraft at 61% of departures; flights ran 78% full.
Departures
189
May 2026
Seats
28,631
both directions
Passengers
22,419
both directions
Load factor
78.3%
RPM ÷ ASM
Who flies MCI–STL?
Southwest Airlines operated the most nonstop MCI–STL departures in May 2026 (184), one of 4 carriers on the route.
- WN
184 departures · 27,792 seats
Share of departures97.4%79.1%
Load
- AA
2 departures · 344 seats
Share of departures1.1%84.6%
Load
- DL
2 departures · 309 seats
Share of departures1.1%47.9%
Load
- SY
1 departures · 186 seats
Share of departures0.5%0.0%
Load
What plane flies MCI–STL?
In May 2026, the Boeing 737-700 flew 61% of MCI–STL departures — more than any other aircraft type.
- Boeing 737-700
116 departures · 80.3% load
61.4% - Boeing 737 MAX 8
43 departures · 78.6% load
22.8% - Boeing 737-800
28 departures · 73.5% load
14.8% - Airbus A319
1 departures · 51.5% load
0.5% - Boeing 737-900ER
1 departures · 45.2% load
0.5%
How has MCI–STL traffic changed?
Nonstop MCI–STL departures fell from 190 in June 2025 to 189 in May 2026.
Monthly nonstop MCI–STL traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
190 departures · 22,858 passengers
73.9%
Load
July 2025
192 departures · 22,750 passengers
72.3%
Load
August 2025
190 departures · 20,699 passengers
67.8%
Load
September 2025
189 departures · 21,520 passengers
71.0%
Load
October 2025
179 departures · 22,088 passengers
79.1%
Load
November 2025
164 departures · 17,422 passengers
67.4%
Load
December 2025
174 departures · 20,504 passengers
74.7%
Load
January 2026
140 departures · 15,271 passengers
65.8%
Load
February 2026
142 departures · 15,733 passengers
69.1%
Load
March 2026
177 departures · 19,288 passengers
70.6%
Load
April 2026
187 departures · 20,536 passengers
73.4%
Load
May 2026
189 departures · 22,419 passengers
78.3%
Load
By direction
Each direction is filed separately — they rarely match.
STL → MCI
75.4% full
99 departures · 11,093 passengers
MCI → STL
81.3% full
90 departures · 11,326 passengers
Nonstop MCI–STL traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Kansas City (MCI) from St Louis (STL)?
MCI to STL is 236 miles (380 km / 205 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from MCI to STL?
A nonstop covers the 236-mile great-circle distance in roughly 1h 16m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies MCI–STL?
In May 2026, the Boeing 737-700 flew the largest share of departures (61.4%), followed by the Boeing 737 MAX 8 (22.8%).
What mileage do I earn flying MCI–STL?
Distance-based programs credit off the 236-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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