ORD → BUF: cancellations & delays
Over Jan 2023 - Apr 2026, 1.7% of Chicago O'Hare International Airport (ORD) to Buffalo Niagara International Airport (BUF) flights were cancelled and 25.1% arrived at least 15 minutes late, across 6,314 flights, flown by UA, MQ, YX, AA, OO. Cancellations peak in January.
Check today's live ORD departures →Airport pages: Chicago O'Hare International Airport (ORD) · Buffalo Niagara International Airport (BUF)
Rates are historical averages from U.S. DOT (BTS) on-time records; a specific flight's live estimate can differ with weather and the day's disruptions.