Southwest Airlines departures from Buffalo, NY (BUF)

Among 5,549 scheduled Southwest Airlines flights departing BUF, 78.8% arrived on time, 11.0% arrived at least 30 minutes late, and 1.1% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Origin and marketing-carrier cohort · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable

78.8%arrived on time

11.0%30+ min late

1.1%cancelled

5,549scheduled flights

Based on July 2025–June 2026; on time means arrival less than 15 minutes late.

30+ minutes late11.0%

60+ minutes late5.5%

Cancelled1.1%

Diverted0.3%

What does the Southwest Airlines BUF sample show?

Southwest Airlines completed 98.6% of its scheduled departures from BUF; 5.5% arrived at least one hour late and 0.3% were diverted.

What were Southwest Airlines at BUF disruption rates?

For Southwest Airlines departures from BUF, 11.0% arrived at least 30 minutes late, 1.1% were cancelled, and 0.3% were diverted.

Compare all airlines at BUF

How large was the Southwest Airlines cohort at BUF?

The Southwest Airlines cohort at BUF contained 5,549 scheduled flights, including 5,473 completed flights, 59 cancellations, and 17 diversions.