Cahokia/St Louis to Buffalo (CPS–BUF) — Airlines, Schedules & Connections

CPS Airport Page →
669 mi airlines 0/wk
On-time Some delays Frequent delays
Connecting Flight Schedule 15 1-stop flights
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  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop

No flights match your filters.

No nonstop flights on this route. connecting options below.

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Cahokia/St Louis to Buffalo
Connecting service available through multiple hubs.
1 Airlines 669 mi 1h 35m nonstop +1h ahead 15 1-stop hubs

CPS–BUF is served by 1 airline with nonstop service. Allegiant Air leads the route. The flight covers 669 miles in approximately 1h 35m. Beyond nonstop, 15 hubs offer 1-stop connections.

Also explore CPS Routes BUF Routes CPS Live Flights BUF Live Flights BUF Delays
Carriers on this route

Airline Landscape

All carriers operating nonstop CPS–BUF service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
G4 Allegiant Air 0 – – – – –
Alliance coverage
Unaffiliated: G4 (0 flights/wk, 0%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for CPS to BUF.
1-STOP
One-Stop Connections
15
Hubs
~3h
Fastest
~24h
Longest
Verified with published schedule alignment and minimum connection time.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
+1h
Buffalo is 1 hour ahead of Cahokia/St Louis.
CPS: CDT · BUF: EDT

When it's 6:00 PM in Cahokia/St Louis, it's 7:00 PM in Buffalo.
Distance & Flight Time
669 mi / 1,077 km
Nonstop flight time is approximately 1h 35m.
Facts

CPS–BUF Quick Facts

Key statistics for the Cahokia/St Louis to Buffalo route.
Route details
Distance669 mi / 1,077 km
Flight time1h 35m
Time difference+1 hour
Airlines (nonstop)1
1-stop connections15 hubs
Origin: CPS
Full nameSt Louis Downtown Airport
IATA / ICAOCPS / KCPS
TimezoneAmerica/Chicago
Elevation413 ft / 126 m
Destination: BUF
Full nameBuffalo Niagara International Airport
IATA / ICAOBUF / KBUF
TimezoneAmerica/New_York
Passengers/yr5.0M
Elevation728 ft / 222 m
FAQ

Frequently Asked Questions

Common questions about CPS to BUF flights.
Nonstop flights from St Louis Downtown Airport to Buffalo Niagara International Airport take approximately 1h 35m. The route covers 669 miles.
1 airline operates nonstop service: Allegiant Air.
Yes, 1-stop connections are available through PIT, DTW, DAL, EWR, BNA, BOS, RDU, PIE, ATL, RSW, DFW, PBI, LGB, DEN and RIC. These options provide additional schedule flexibility.
Buffalo is 1 hour ahead of Cahokia/St Louis.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from CPS to BUF

St Louis Downtown Airport (CPS) and Buffalo Niagara International Airport (BUF) are connected by nonstop service from Allegiant Air.

CPS to BUF Flight Duration and Schedule

Nonstop flight time from CPS to BUF ranges from 1 hours 35 minutes. The route covers a distance of 669 miles (1,077 km).

Connecting Options and Alternatives

15 one-stop connections are available, with the fastest taking approximately 3 hours via PIT.