BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
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AIRLINE × ROUTE REPORT
BOS→ORD

United Airlines Boston, MA (BOS) to Chicago, IL (ORD) reliability

Among 2,678 scheduled United Airlines flights from BOS to ORD, 73.3% arrived on time, 16.5% arrived at least 30 minutes late, and 1.9% 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
73.3%arrived on time
16.5%30+ min late
1.9%cancelled
2,678scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late16.5%
60+ minutes late9.7%
Cancelled1.9%
Average arrival+14.1 mincompleted flights

What did United Airlines BOS to ORD record?

United Airlines completed 97.7% of its scheduled reportable BOS to ORD flights in the observation window. 73.3% of all scheduled flights arrived less than 15 minutes late, while 9.7% arrived at least an hour late.

What were United Airlines BOS to ORD disruption rates?

For United Airlines BOS-to-ORD flights, 16.5% arrived at least 30 minutes late, 1.9% were cancelled, and 0.4% were diverted.

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What was the United Airlines BOS to ORD scheduled cohort?

The United Airlines BOS-to-ORD cohort contained 2,678 scheduled flights; 2,617 completed, 51 were cancelled, and 10 were diverted.

Not a prediction.

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