Route
MIA → SAT
Miami International Airport San Antonio International Airport
1,143 miles
Return route SAT → MIA →
How punctual is this route?
- On-time arrivals
- 69.6%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 73 min
- Flights arriving 15+ minutes late
- Flights tracked
- 495
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 40%
- Airline (crew, maintenance, cleaning) 38%
- Air traffic control & airport 13%
- Extreme weather 9%
- Security 1%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 80.0% | 30 |
| October 2025 | 81.6% | 49 |
| November 2025 | 72.7% | 33 |
| December 2025 | 76.3% | 39 |
| January 2026 | 75.5% | 51 |
| February 2026 | 81.6% | 38 |
| March 2026 | 53.3% | 31 |
| April 2026 | 56.7% | 30 |
| May 2026 | 56.6% | 54 |
| June 2026 | 76.7% | 60 |
| July 2026 | 56.2% | 32 |
| August 2026 | 60.4% | 48 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| American Airlines | 399 | 66.0% | 0.8% | 77 min |
| Envoy Air | 96 | 84.4% | 0.0% | 38 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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