Milwaukee (MKE) to St Louis (STL)
Flight time
≈ 1h 26m
Bearing
205° SW
Milwaukee (MKE) to St Louis (STL) is 318 miles (511 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies MKE–STL
Filed traffic dataIn June 2026, Southwest Airlines operated the most departures, one of 2 carriers flying nonstop MKE–STL; the Boeing 737-700 was the most common aircraft at 51% of departures; flights ran 63% full.
Departures
112
June 2026
Seats
17,425
both directions
Passengers
10,947
both directions
Load factor
62.8%
RPM ÷ ASM
Who flies MKE–STL?
Southwest Airlines operated the most nonstop MKE–STL departures in June 2026 (111), one of 2 carriers on the route.
- WN
111 departures · 17,259 seats
Share of departures99.1%62.8%
Load
- UA
1 departures · 166 seats
Share of departures0.9%66.3%
Load
What plane flies MKE–STL?
In June 2026, the Boeing 737-700 flew 51% of MKE–STL departures — more than any other aircraft type.
- Boeing 737-700
57 departures · 62.6% load
50.9% - Boeing 737 MAX 8
35 departures · 65.8% load
31.3% - Boeing 737-800
20 departures · 58.2% load
17.9%
How has MKE–STL traffic changed?
Nonstop MKE–STL departures fell from 114 in July 2025 to 112 in June 2026.
Monthly nonstop MKE–STL traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.
July 2025
114 departures · 12,672 passengers
67.6%
Load
August 2025
121 departures · 15,335 passengers
78.6%
Load
September 2025
121 departures · 14,755 passengers
75.6%
Load
October 2025
114 departures · 12,931 passengers
74.2%
Load
November 2025
110 departures · 10,846 passengers
65.8%
Load
December 2025
116 departures · 11,786 passengers
66.6%
Load
January 2026
113 departures · 9,041 passengers
49.5%
Load
February 2026
105 departures · 9,701 passengers
60.7%
Load
March 2026
105 departures · 9,645 passengers
61.5%
Load
April 2026
119 departures · 12,003 passengers
67.3%
Load
May 2026
123 departures · 10,912 passengers
58.4%
Load
June 2026
112 departures · 10,947 passengers
62.8%
Load
By direction
Each direction is filed separately — they rarely match.
STL → MKE
60.6% full
57 departures · 5,398 passengers
MKE → STL
65.1% full
55 departures · 5,549 passengers
Nonstop MKE–STL traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through June 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Milwaukee (MKE) from St Louis (STL)?
MKE to STL is 318 miles (511 km / 276 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from MKE to STL?
A nonstop covers the 318-mile great-circle distance in roughly 1h 26m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies MKE–STL?
In June 2026, the Boeing 737-700 flew the largest share of departures (50.9%), followed by the Boeing 737 MAX 8 (31.3%).
What mileage do I earn flying MKE–STL?
Distance-based programs credit off the 318-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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