Direct (nonstop) flights from Buffalo to Chicago
2 airlines fly nonstop from Buffalo Niagara International (BUF) to Chicago O Hare International (ORD). It's 473 miles (761 km), about 1h 59m 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 Buffalo to Chicago with one stop · direct emits 88 kg CO₂ per passenger
Looking for the return flight?
ORD → BUF: Flights from Chicago to BuffaloOther direct flights from Buffalo
Direct flights from Chicago (ORD)
Frequently Asked Questions
How long is the direct flight from Buffalo to Chicago?
A nonstop flight from Buffalo (BUF) to Chicago (ORD) takes approximately 1 hours and 59 minutes. The distance is 473 miles (761 km).
Which airlines fly nonstop from Buffalo to Chicago?
2 airlines: American Airlines, United Airlines.
Is there a nonstop flight from Buffalo to Chicago?
Yes. 2 airlines: American Airlines, United Airlines.
How far is Buffalo from Chicago?
The flight distance from Buffalo to Chicago 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 Buffalo to Chicago?
At 1h 59m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Buffalo to Chicago?
Roughly 88 kg CO2 per passenger one-way. That's about the same as driving 440 km.
Is the return flight from Chicago to Buffalo 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 Buffalo to Chicago?
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 Buffalo Niagara International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.