SAT to SFO flight delays & on-time performance
Nonstop flights from San Antonio International Airport to San Francisco International Airport · 1,482 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SAT or SFO right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from San Antonio (SAT) to San Francisco (SFO) arrived on time 86% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.5% were cancelled, and 6% arrived an hour or more late.
- United Airlines was the most punctual airline here (88% on time); SkyWest Airlines was the least (86%).
- Departures scheduled around 7am did best (91% on time); around 8am did worst (70%).
- Tuesday was the most reliable day to fly (92% on time) and Friday the least (82%).
- The largest source of delay minutes was late-arriving aircraft (38%).
Which airline is most on time from SAT to SFO?
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 |
|---|---|---|---|---|---|
| United Airlines | 88% | 0.0% | 13 min | 6.0% | 83 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 86% | 0.6% | 17 min | 6.3% | 351 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am87%77 flights
- 7am91%211 flights
- 8am70%20 flights
- 3pm77%62 flights
- 5pm84%32 flights
- 6pm81%26 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday85%1.5% cancelled
- Tuesday92%0.0% cancelled
- Wednesday91%0.0% cancelled
- Thursday86%0.0% cancelled
- Friday82%0.0% cancelled
- Saturday86%0.0% cancelled
- Sunday82%1.4% 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 aircraft38%
- Air traffic control & airport congestion32%
- Airline (crew, maintenance, cleaning, fueling)30%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather50%
- Air traffic control & airport congestion50%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
SAT to SFO: common questions
- How often are SAT to SFO flights on time?
- 86% 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 San Antonio to San Francisco cancelled?
- 0.5% of scheduled flights were cancelled (2 of 434).
- How long are typical delays?
- Across all flights the average arrival delay was 16 min (early arrivals count as zero). Flights that were late arrived 108 min behind schedule on average, and 6.3% of flights were an hour or more late.
- How long is taxi time at SAT?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SFO to SAT — 77% on time
More flights from San Antonio
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SAT → SFO, nonstop flights by US airlines that report to the DOT. How we calculate this.