BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
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IAD→LAS

United Airlines Washington, DC (IAD) to Las Vegas, NV (LAS) reliability

Among 1,009 scheduled United Airlines flights from IAD to LAS, 86.3% arrived on time, 9.0% arrived at least 30 minutes late, and 0.5% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Marketing carrier: United Airlines (UA) · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
86.3%arrived on time
9.0%30+ min late
0.5%cancelled
1,009scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late9.0%
60+ minutes late4.7%
Cancelled0.5%
Average arrival-4.1 mincompleted flights

What did United Airlines IAD to LAS record?

United Airlines completed 99.4% of its scheduled reportable IAD to LAS flights in the observation window. 86.3% of all scheduled flights arrived less than 15 minutes late, while 4.7% arrived at least an hour late.

What were United Airlines IAD to LAS disruption rates?

For United Airlines IAD-to-LAS flights, 9.0% arrived at least 30 minutes late, 0.5% were cancelled, and 0.1% were diverted.

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What was the United Airlines IAD to LAS scheduled cohort?

The United Airlines IAD-to-LAS cohort contained 1,009 scheduled flights; 1,003 completed, 5 were cancelled, and 1 were diverted.

Not a prediction.

This is a descriptive historical rate. Schedule changes, seasonal operations and current conditions may differ.