BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
AIRLINE × ROUTE REPORT
DEN→BOS

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

Among 1,911 scheduled United Airlines flights from DEN to BOS, 76.3% arrived on time, 16.1% arrived at least 30 minutes late, and 0.8% 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 SIGNALGenerally reliable
76.3%arrived on time
16.1%30+ min late
0.8%cancelled
1,911scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late16.1%
60+ minutes late8.8%
Cancelled0.8%
Average arrival+5.7 mincompleted flights

What did United Airlines DEN to BOS record?

United Airlines completed 99.0% of its scheduled reportable DEN to BOS flights in the observation window. 76.3% of all scheduled flights arrived less than 15 minutes late, while 8.8% arrived at least an hour late.

What were United Airlines DEN to BOS disruption rates?

For United Airlines DEN-to-BOS flights, 16.1% arrived at least 30 minutes late, 0.8% were cancelled, and 0.2% were diverted.

Compare all airlines on this route

What was the United Airlines DEN to BOS scheduled cohort?

The United Airlines DEN-to-BOS cohort contained 1,911 scheduled flights; 1,892 completed, 16 were cancelled, and 3 were diverted.

Not a prediction.

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