The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Quincy Rgnl-Baldwin Field ⇄ St. Louis Lambert International UIN–STL

Airlines flew 305 flights between Quincy Rgnl-Baldwin Field UIN in Quincy, IL and St. Louis Lambert International STL in St Louis, MO in the twelve months to July 2026, both directions together: 612 passengers in 2,745 seats, 22% of them filled. 93 miles, about 35 minutes in the air, on 1 airline: Southern Airways Express, dba Mokulele Airlines (305). Planning to fly it yourself? The weather and winds along this route right now.

305
flights, twelve months
UIN-STL: 153 · STL-UIN: 152
612
passengers
22% of seats filled
93
miles
about 35 minutes airborne
1
airline
1 aircraft type

Flights by month both directions

039781161551/254/257/2515510/25
By month, as a table
flights
1/2585
2/2576
3/25133
4/25139
5/25140
6/25152
7/25154
8/25150
10/25155

Passengers by month

0831662503331/254/257/2533310/25
By month, as a table
passengers
1/25157
2/25123
3/25264
4/25277
5/25271
6/25332
7/25325
8/25279
10/25333

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Southern Airways Express, dba Mokulele Airlines 9X30561222%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Cessna C208B/Grand Caravan3059612

UIN → STL this direction alone · flown January 2025 to October 2025

153 flights of 159 scheduled, 337 passengers in 1,377 seats. Southern Airways Express, dba Mokulele Airlines 153.

STL → UIN this direction alone · flown January 2025 to October 2025

152 flights of 159 scheduled, 275 passengers in 1,368 seats. Southern Airways Express, dba Mokulele Airlines 152.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Quincy Rgnl-Baldwin Field UIN and St. Louis Lambert International STL; all routes.