St Louis to Buffalo (SUS–BUF) — Airlines, Schedules & Connections

SUS Airport Page →
689 mi airlines 1/wk
On-time Some delays Frequent delays
Flight Schedule 0 flights Verified 1d ago
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  Flight Airline AC Dep Arr Dur OTP Sched  

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP
✧ 2-STOP Loading...
St Louis to Buffalo
Connecting service available through multiple hubs.
1 Flights/wk 689 mi 2h 19m nonstop 20 1-stop hubs

While no nonstop service exists between SUS and BUF, connecting options are available through 20 hubs.

Also explore SUS Routes BUF Routes SUS Live Flights BUF Live Flights BUF Delays
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for SUS to BUF.
1-STOP
One-Stop Connections
20
Hubs
~3h
Fastest
~9h
Longest
IND ~3h 50m BNA ~4h 7m PIT ~4h 22m MDW ~4h 28m LGA ~4h 49m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
66
Candidates
Two-stop connections loaded in the connections tab above.
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
SUS → BUF
68%
Moderate delays possible. Allow buffer time.
Arriving
68%
Return
BUF → SUS
20%
Frequent delays expected. Consider flexible booking.
Departing
20%
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
0h
Buffalo is 0 hours the same as St Louis.
SUS: EDT · BUF: EDT

When it's 6:00 PM in St Louis, it's 6:00 PM in Buffalo.
Distance & Flight Time
689 mi / 1,109 km
Nonstop flight time is approximately 2h 19m.
Facts

SUS–BUF Quick Facts

Key statistics for the St Louis to Buffalo route.
Route details
Distance689 mi / 1,109 km
Flight time2h 19m
Time difference0 hours
Airlines (nonstop)0
Weekly flights1 out
1-stop connections20 hubs
Origin: SUS
Full nameSpirit of St Louis Airport
IATA / ICAOSUS / KSUS
TimezoneAmerica/Indiana/Vincennes
Elevation463 ft / 141 m
Destination: BUF
Full nameBuffalo Niagara International Airport
IATA / ICAOBUF / KBUF
TimezoneAmerica/Detroit
Passengers/yr5.0M
Elevation728 ft / 222 m
FAQ

Frequently Asked Questions

Common questions about SUS to BUF flights.
Nonstop flights from Spirit of St Louis Airport to Buffalo Niagara International Airport take approximately 2h 19m. The route covers 689 miles.
There are approximately 1 nonstop flights per week from SUS to BUF.
Yes, 1-stop connections are available through IND, BNA, PIT, MDW, LGA, BOS, ORD, IAD, DAL, DFW, JFK, MCO, RSW, OPF, PBI, SRQ, MIA, FLL, PHX and LAS. These options provide additional schedule flexibility.
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 SUS to BUF

Spirit of St Louis Airport (SUS) and Buffalo Niagara International Airport (BUF) are connected through multiple connecting hub airports.

SUS to BUF Flight Duration and Schedule

Nonstop flight time from SUS to BUF ranges from 2 hours 19 minutes. The route covers a distance of 689 miles (1,109 km).

Connecting Options and Alternatives

20 one-stop connections are available, with the fastest taking approximately 3 hours via IND. Two-stop connections are also available via intermediate hubs.