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

Southwest Airlines Islip, NY (ISP) to Baltimore, MD (BWI) reliability

Among 1,217 scheduled Southwest Airlines flights from ISP to BWI, 83.4% arrived on time, 8.7% arrived at least 30 minutes late, and 1.5% were cancelled during July 2025–June 2026.

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

HISTORICAL ROUTE SIGNALGenerally reliable
83.4%arrived on time
8.7%30+ min late
1.5%cancelled
1,217scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late8.7%
60+ minutes late4.3%
Cancelled1.5%
Average arrival+2.7 mincompleted flights

What did Southwest Airlines ISP to BWI record?

Southwest Airlines completed 98.2% of its scheduled reportable ISP to BWI flights in the observation window. 83.4% of all scheduled flights arrived less than 15 minutes late, while 4.3% arrived at least an hour late.

What were Southwest Airlines ISP to BWI disruption rates?

For Southwest Airlines ISP-to-BWI flights, 8.7% arrived at least 30 minutes late, 1.5% were cancelled, and 0.3% were diverted.

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What was the Southwest Airlines ISP to BWI scheduled cohort?

The Southwest Airlines ISP-to-BWI cohort contained 1,217 scheduled flights; 1,195 completed, 18 were cancelled, and 4 were diverted.

Not a prediction.

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