BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
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BOS→DEN

United Airlines Boston, MA (BOS) to Denver, CO (DEN) reliability

Among 1,908 scheduled United Airlines flights from BOS to DEN, 81.9% arrived on time, 11.1% arrived at least 30 minutes late, and 1.0% 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
81.9%arrived on time
11.1%30+ min late
1.0%cancelled
1,908scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late11.1%
60+ minutes late5.5%
Cancelled1.0%
Average arrival+0.1 mincompleted flights

What did United Airlines BOS to DEN record?

United Airlines completed 98.6% of its scheduled reportable BOS to DEN flights in the observation window. 81.9% of all scheduled flights arrived less than 15 minutes late, while 5.5% arrived at least an hour late.

What were United Airlines BOS to DEN disruption rates?

For United Airlines BOS-to-DEN flights, 11.1% arrived at least 30 minutes late, 1.0% were cancelled, and 0.4% were diverted.

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What was the United Airlines BOS to DEN scheduled cohort?

The United Airlines BOS-to-DEN cohort contained 1,908 scheduled flights; 1,882 completed, 19 were cancelled, and 7 were diverted.

Not a prediction.

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