DAL → SAT Southwest Airlines

Southwest Airlines · Dallas, TX to San Antonio, TX · 2,728 flights, 2025-07-01 to 2026-06-30 · aggregated across 160 flight numbers

This route runs much more reliably at some times of day than others — 97% on-time departing 6–9am vs. 52% departing 9pm–12am.
On-time arrival
78%
Median delay
-7 min
90th percentile
+44 min
Cancellation rate
1%

How on-time is Southwest Airlines from DAL to SAT?

Across every Southwest Airlines flight number on DAL → SAT (2,728 flights, 2025-07-01 to 2026-06-30), 78% arrived within 15 minutes of schedule. Median arrival delay -7 min; the worst 10% ran +44 min or later. 1% were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time2,11178%
16-30 min2088%
31-60 min1987%
61-120 min1184%
2+ hrs592%

Performance by month

MonthFlightsOn-timeAvg delay
2025-0720974%+10 min
2025-0821779%+4 min
2025-0921886%-1 min
2025-1025387%+1 min
2025-1122679%+4 min
2025-1222783%+2 min
2026-0119187%+1 min
2026-0218786%0 min
2026-0324878%+3 min
2026-0424777%+3 min
2026-0525070%+18 min
2026-0622158%+24 min

Performance by day of week

DayFlightsOn-time
Mon41278%
Tue41985%
Wed41282%
Thu41375%
Fri40677%
Sat28778%
Sun34572%

Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…