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

CPS Airport Page →
669 mi airlines charter/private
On-time Some delays Frequent delays
Connecting Flight Schedule 10 1-stop flights
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
MDW Chicago ~3h 39m DL → WN Chicago (MDW) to Buffalo flights
DTW Detroit ~3h 52m → AMDLKE Detroit (DTW) to Buffalo flights
MSP Minneapolis ~4h 56m → AFDLWS Minneapolis (MSP) to Buffalo flights
EWR Newark ~4h 58m → CMOSUA Newark (EWR) to Buffalo flights
IAD Dulles ~5h 5m → AVCMSN Dulles (IAD) to Buffalo flights
BOS Boston ~5h 39m → AAB6EI Boston (BOS) to Buffalo flights
ATL Atlanta ~6h 14m → AMDLF9 Atlanta (ATL) to Buffalo flights
DFW Dallas-Fort Worth ~6h 34m → AA Dallas-Fort Worth (DFW) to Buffalo flights
DEN Denver ~7h 40m UA → UAWN Denver (DEN) to Buffalo flights
LGB Long Beach ~9h 33m → Long Beach (LGB) to Buffalo flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Cahokia/St Louis to Buffalo
Connecting service available through multiple hubs.
1 Airlines 669 mi 1h 35m nonstop +1h ahead

While no nonstop service exists between CPS and BUF, 1-stop connecting options are available.

Also explore CPS Routes BUF Routes CPS Live Flights BUF Live Flights BUF Delays
All flights from Buffalo (BUF) Buffalo to Cahokia/St Louis flights
Carriers on this route

Airline Landscape

Carriers that operated 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

1-stop and 2-stop options for CPS to BUF.
1-STOP
One-Stop Connections
10
Hubs
~3h
Fastest
~9h
Longest
MDW ~3h 39m DTW ~3h 52m MSP ~4h 56m EWR ~4h 58m IAD ~5h 5m
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.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
CPS → BUF
67%
Moderate delays possible. Allow buffer time.
Arriving
67%
Return
BUF → CPS
75%
Generally reliable. Most flights run on time.
Departing
75%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. BUF delays →
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 gate to gate.
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 connectionsAvailable
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 about 1h 35m gate to gate. The route covers 669 miles.
Yes, 1-stop connections are available, ranked by layover time.
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 through multiple connecting hub airports.

CPS to BUF Flight Duration and Schedule

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

Connecting Options and Alternatives

1-stop connecting options are also available.