Direct (nonstop) flights from Chicago to Buffalo
2 airlines fly nonstop from Chicago O Hare International (ORD) to Buffalo Niagara International (BUF). It's 473 miles (761 km), about 1h 41m in the air. Operated by American Airlines, United Airlines.
American Airlines
United Airlines
Route data last updated: May 29, 2026
Airlines with non-stop flights
AA
American Airlines
UA
United Airlines
Alternative Routes
Other ways to fly from Chicago to Buffalo with one stop · direct emits 88 kg CO₂ per passenger
Looking for the return flight?
BUF → ORD: Flights from Buffalo to ChicagoOther direct flights from Chicago
Direct flights from Buffalo (BUF)
Frequently Asked Questions
How long is the direct flight from Chicago to Buffalo?
A nonstop flight from Chicago (ORD) to Buffalo (BUF) takes approximately 1 hours and 41 minutes. The distance is 473 miles (761 km).
Which airlines fly nonstop from Chicago to Buffalo?
2 airlines: American Airlines, United Airlines.
Is there a nonstop flight from Chicago to Buffalo?
Yes. 2 airlines: American Airlines, United Airlines.
How far is Chicago from Buffalo?
The flight distance from Chicago to Buffalo is 473 miles (761 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as Mumbai to Goa.
What type of aircraft flies from Chicago to Buffalo?
At 1h 41m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Chicago to Buffalo?
Roughly 88 kg CO2 per passenger one-way. That's about the same as driving 440 km.
Is the return flight from Buffalo to Chicago also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Chicago to Buffalo?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Chicago O Hare International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.