BUF → ORD: cancellations & delays
Over Jan 2023 - Apr 2026, 1.9% of Buffalo Niagara International Airport (BUF) to Chicago O'Hare International Airport (ORD) flights were cancelled and 23.6% arrived at least 15 minutes late, across 6,316 flights, flown by UA, MQ, YX, AA, OO, OH. Cancellations peak in January.
Check today's live BUF departures →Airport pages: Buffalo Niagara International Airport (BUF) · Chicago O'Hare International Airport (ORD)
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.