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

St. Louis Downtown ⇄ Buffalo Niagara International CPS–BUF

Airlines flew 5 flights between St. Louis Downtown CPS in Cahokia/St Louis, IL and Buffalo Niagara International BUF in Buffalo, NY in the twelve months to July 2026, both directions together: 324 passengers in 431 seats, 75% of them filled. 670 miles, about 90 minutes in the air, on 5 airlines: Jet Aviation Flight Services, Inc. (1), Allegiant Air (1), Air Canada (1), CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle (1) and 1 more. Planning to fly it yourself? The weather and winds along this route right now.

5
flights, twelve months
CPS-BUF: 2 · BUF-CPS: 3
324
passengers
75% of seats filled
670
miles
about 90 minutes airborne
5
airlines
4 aircraft types

Flights by month both directions

0012211/251111/2623/26
By month, as a table
flights
1/251
9/251
12/251
1/261
3/262

Passengers by month

060120179239361/25451301/262393/26
By month, as a table
passengers
1/2536
9/254
12/2551
1/2630
3/26239

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Jet Aviation Flight Services, Inc. 27Q1429%charter passenger service
Allegiant Air G4111664%charter passenger service
Air Canada AC15173%charter passenger service
CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle LF130100%charter passenger service
Breeze Aviation Group DBA Breeze MX112390%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Airbus Industrie A320-100/2002125167
Gulfstream Aerospace G5001144
Bombardier Challenger 604/60513030
A220-300 BD-500-1A111137123

CPS → BUF this direction alone · flown September 2025 to March 2026

2 flights, 120 passengers in 194 seats. Jet Aviation Flight Services, Inc. 1; Allegiant Air 1.

BUF → CPS this direction alone · flown January 2025 to March 2026

3 flights, 204 passengers in 237 seats. Air Canada 1; CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle 1; Breeze Aviation Group DBA Breeze 1.

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: St. Louis Downtown CPS and Buffalo Niagara International BUF; all routes.