Route · MIA → SAT · 2020–2025 BTS data
Miami to San Antonio
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), MIA to SAT (Miami to San Antonio) ranks #3583 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 71.2%
- On-time
- -7.8 pts
- vs US avg
- 73 min
- Delay when late
- 2,396
- Flights
- #3583 of 4927
- Corpus placement
Cancelled
1.9%
Best Month
Oct 2024 84%
Worst Month
Mar 2024 58%
Distance
1,143 mi
Carriers
5
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 39 | 9 | 0 | 1 | AA,MQ |
| Nov 2025 | 33 | 9 | 0 | 0 | AA |
| Oct 2025 | 49 | 9 | 0 | 0 | AA,MQ |
| Sep 2025 | 30 | 6 | 0 | 0 | AA |
| Aug 2025 | 36 | 16 | 1 | 0 | AA,MQ |
| Jul 2025 | 58 | 20 | 2 | 1 | AA,MQ |
| Jun 2025 | 34 | 17 | 1 | 1 | AA,MQ |
| May 2025 | 62 | 16 | 1 | 1 | AA,MQ |
| Apr 2025 | 60 | 12 | 1 | 0 | MQ,AA |
| Mar 2025 | 70 | 25 | 2 | 0 | AA,MQ,NK |
| Feb 2025 | 44 | 12 | 0 | 0 | AA,MQ |
| Jan 2025 | 31 | 8 | 1 | 0 | AA |
| Dec 2024 | 45 | 17 | 1 | 0 | AA,MQ |
| Nov 2024 | 43 | 5 | 0 | 1 | MQ,AA |
| Oct 2024 | 56 | 9 | 2 | 0 | AA |
| Sep 2024 | 30 | 7 | 0 | 0 | AA |
| Aug 2024 | 31 | 14 | 0 | 0 | AA |
| Jul 2024 | 31 | 10 | 1 | 0 | AA |
| Jun 2024 | 30 | 13 | 0 | 0 | AA |
| May 2024 | 31 | 12 | 1 | 0 | AA |
| Apr 2024 | 33 | 17 | 0 | 0 | AA,MQ |
| Mar 2024 | 62 | 26 | 3 | 0 | AA,MQ |
| Feb 2024 | 46 | 15 | 0 | 0 | AA,MQ |
| Jan 2024 | 35 | 15 | 2 | 0 | AA,MQ |
MIA–SAT seasonal on-time pattern
Best: October (79.0%) · weakest: June (57.0%)
Strongest calendar month
October
79.0% on-time · ~42 flights/mo
Busiest calendar month
March
~50 flights/mo avg
Weakest calendar month
June
57.0% on-time · ~43 flights/mo
Cancellation Rate
1.9%
19 of 1,019 flights
Diversion Rate
0.5%
5 of 1,019 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
MIA - Miami
Full on-time, delay-cause, and seasonal performance for Miami, FL.
MIA on-time profileSAT - San Antonio
Full on-time, delay-cause, and seasonal performance for San Antonio, TX.
SAT on-time profileCompare the two airports
See MIA and SAT side by side on delays, cancellations, and reliability.
Compare MIA vs SATOrigin-hub reliability standing
Softer reliability from MIA
Among 63 routes leaving MIA, only 25 (including this one) clear below 75% on-time, while 1 stay ≥85% and 37 sit mid-band. Travelers comparing MIA options should weigh this 71.2% print against those peers · fleet on-time rank #4798 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to MIA–SAT.
Routes with a similar on-time rate
What the Data Says About MIA to SAT
On-time performance on the MIA to SAT pairing (Miami to San Antonio) trails a chunk of the network: 71.2% of 2,396 tracked flights arrived on schedule, with a 73.4-minute average delay on the ones that ran late. The route spans about 1,143 miles across 5 carriers. Cancellations over the trailing 24 months hit 1.9% (19 of 1,019 flights), with 0.5% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 84% on-time, while Mar 2024 came in at just 58% - a 26-point swing worth factoring into travel timing.
On the multi-year calendar, MIA–SAT peaks in October at 79.0% on-time while March carries the heaviest traffic (~50 flights per month) ; the softest month is June at 57.0%, a 22.0-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does MIA to SAT rank among US routes by traffic? ▼
How often are flights delayed from MIA to SAT? ▼
What is the cancellation rate for MIA to SAT? ▼
How far is the flight from MIA to SAT? ▼
When is the best time to fly from MIA to SAT? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using MIA–SAT data
MIA–SAT sits 7.8 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.
- Compare MIA and SAT airport profiles: delay causes and top routes differ even on the same corridor. MIA airport
- If your dates flex, October (79.0% on-time) beats June (57.0%) on this corridor. Seasonal chart
- 4 other routes post a similar 71.2% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.