DAL to SAT flight delays & on-time performance
Nonstop flights from Dallas Love Field to San Antonio International Airport · 247 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DAL or SAT right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Dallas (DAL) to San Antonio (SAT) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.1% were cancelled, and 7% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 8am did best (97% on time); around 9pm did worst (43%).
- Tuesday was the most reliable day to fly (84% on time) and Sunday the least (71%).
- The largest source of delay minutes was late-arriving aircraft (61%).
Which airline is most on time from DAL to SAT?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 77% | 1.1% | 14 min | 6.8% | 2,742 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am97%169 flights
- 7am95%249 flights
- 8am97%153 flights
- 9am94%161 flights
- 10am95%108 flights
- 11am83%152 flights
- 12pm79%181 flights
- 1pm82%302 flights
- 2pm81%98 flights
- 3pm69%135 flights
- 4pm67%203 flights
- 5pm65%125 flights
- 6pm67%173 flights
- 7pm63%197 flights
- 8pm55%158 flights
- 9pm43%95 flights
- 10pm53%83 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday77%1.4% cancelled
- Tuesday84%0.5% cancelled
- Wednesday82%0.0% cancelled
- Thursday75%0.5% cancelled
- Friday74%1.2% cancelled
- Saturday77%2.1% cancelled
- Sunday71%2.5% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft61%
- Airline (crew, maintenance, cleaning, fueling)28%
- Air traffic control & airport congestion8%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather73%
- Airline (crew, maintenance, cleaning, fueling)23%
- Air traffic control & airport congestion3%
- Security0%
DAL to SAT: common questions
- How often are DAL to SAT flights on time?
- 77% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Dallas to San Antonio cancelled?
- 1.1% of scheduled flights were cancelled (30 of 2,742).
- How long are typical delays?
- Across all flights the average arrival delay was 14 min (early arrivals count as zero). Flights that were late arrived 56 min behind schedule on average, and 6.8% of flights were an hour or more late.
- How long is taxi time at DAL?
- Flights on this route spent 12 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SAT to DAL — 83% on time
More flights from Dallas
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DAL → SAT, nonstop flights by US airlines that report to the DOT. How we calculate this.