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

Delta Air Lines Boston, MA (BOS) to Chicago, IL (ORD) reliability

Among 962 scheduled Delta Air Lines flights from BOS to ORD, 62.8% arrived on time, 24.7% arrived at least 30 minutes late, and 3.1% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Marketing carrier: Delta Air Lines (DL) · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
62.8%arrived on time
24.7%30+ min late
3.1%cancelled
962scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late24.7%
60+ minutes late14.6%
Cancelled3.1%
Average arrival+19.1 mincompleted flights

What did Delta Air Lines BOS to ORD record?

Delta Air Lines completed 96.3% of its scheduled reportable BOS to ORD flights in the observation window. 62.8% of all scheduled flights arrived less than 15 minutes late, while 14.6% arrived at least an hour late.

What were Delta Air Lines BOS to ORD disruption rates?

For Delta Air Lines BOS-to-ORD flights, 24.7% arrived at least 30 minutes late, 3.1% were cancelled, and 0.6% were diverted.

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What was the Delta Air Lines BOS to ORD scheduled cohort?

The Delta Air Lines BOS-to-ORD cohort contained 962 scheduled flights; 926 completed, 30 were cancelled, and 6 were diverted.

Not a prediction.

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