St Louis (STL) to Quincy (UIN)
Flight time
≈ 0h 59m
Bearing
332° NW
St Louis (STL) to Quincy (UIN) is 94 miles (151 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies STL–UIN
Filed traffic dataIn October 2025, Mokulele Airlines was the only carrier flying nonstop STL–UIN; the Cessna C208B was the most common aircraft at 100% of departures; flights ran 24% full.
Departures
155
October 2025
Seats
1,395
both directions
Passengers
333
both directions
Load factor
23.9%
RPM ÷ ASM
Who flies STL–UIN?
Mokulele Airlines was the only carrier to fly nonstop STL–UIN in October 2025 (155 departures).
- 9X
Mokulele Airlines
155 departures · 1,395 seats
Share of departures100.0%23.9%
Load
What plane flies STL–UIN?
In October 2025, the Cessna C208B flew 100% of STL–UIN departures.
- Cessna C208B
155 departures · 23.9% load
100.0%
How has STL–UIN traffic changed?
Nonstop STL–UIN departures rose from 152 in June 2025 to 155 in October 2025.
Monthly nonstop STL–UIN traffic, trailing 12 months through October 2025. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
152 departures · 332 passengers
24.3%
Load
July 2025
154 departures · 325 passengers
23.4%
Load
August 2025
150 departures · 279 passengers
20.7%
Load
September 2025
0 departures · 0 passengers
—
Load
October 2025
155 departures · 333 passengers
23.9%
Load
By direction
Each direction is filed separately — they rarely match.
UIN → STL
24.4% full
78 departures · 171 passengers
STL → UIN
23.4% full
77 departures · 162 passengers
Nonstop STL–UIN traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through October 2025; filings from 2025. Public domain (US Government work).
The airports
Quincy
US
Quincy Regional Airport Baldwin Field
Coordinates
39.94°N, 91.19°W
Hemisphere
N · W
Frequently asked
How far is St Louis (STL) from Quincy (UIN)?
STL to UIN is 94 miles (151 km / 81 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from STL to UIN?
A nonstop covers the 94-mile great-circle distance in roughly 0h 59m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies STL–UIN?
In October 2025, the Cessna C208B flew the largest share of departures (100.0%).
What mileage do I earn flying STL–UIN?
Distance-based programs credit off the 94-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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