ORD → LAS: cancellations & delays
Over Jan 2023 - Apr 2026, 1.0% of Chicago O'Hare International Airport (ORD) to Harry Reid International Airport (LAS) flights were cancelled and 24.3% arrived at least 15 minutes late, across 17,736 flights, flown by UA, AA, NK, WN, F9. Cancellations peak in July.
Check today's live ORD departures →Airport pages: Chicago O'Hare International Airport (ORD) · Harry Reid International Airport (LAS)
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.