Route · SAN → SAT · 2020–2025 BTS data
San Diego to San Antonio
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SAN to SAT (San Diego to San Antonio) ranks #3662 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 74.8%
- On-time
- -4.2 pts
- vs US avg
- 55 min
- Delay when late
- 2,261
- Flights
- #3662 of 4927
- Corpus placement
Cancelled
0.5%
Best Month
Sep 2025 84%
Worst Month
Jul 2024 57%
Distance
1,129 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 60 | 16 | 0 | 0 | WN |
| Nov 2025 | 56 | 14 | 1 | 0 | WN |
| Oct 2025 | 57 | 18 | 0 | 0 | WN |
| Sep 2025 | 56 | 9 | 1 | 0 | WN |
| Aug 2025 | 57 | 17 | 0 | 1 | WN |
| Jul 2025 | 61 | 16 | 0 | 0 | WN |
| Jun 2025 | 60 | 19 | 0 | 1 | WN |
| May 2025 | 57 | 16 | 0 | 0 | WN |
| Apr 2025 | 56 | 9 | 0 | 0 | WN |
| Mar 2025 | 55 | 13 | 0 | 0 | WN |
| Feb 2025 | 43 | 8 | 0 | 0 | WN |
| Jan 2025 | 42 | 8 | 1 | 0 | WN |
| Dec 2024 | 60 | 23 | 0 | 0 | WN |
| Nov 2024 | 56 | 9 | 0 | 0 | WN |
| Oct 2024 | 58 | 21 | 0 | 0 | WN |
| Sep 2024 | 60 | 12 | 0 | 0 | WN |
| Aug 2024 | 62 | 15 | 1 | 0 | WN |
| Jul 2024 | 61 | 26 | 1 | 0 | WN |
| Jun 2024 | 59 | 22 | 0 | 0 | WN |
| May 2024 | 58 | 17 | 1 | 0 | WN |
| Apr 2024 | 56 | 16 | 0 | 0 | WN |
| Mar 2024 | 53 | 12 | 0 | 0 | WN |
| Feb 2024 | 33 | 6 | 0 | 0 | WN |
| Jan 2024 | 41 | 10 | 0 | 0 | WN |
SAN–SAT seasonal on-time pattern
Best: February (84.8%) · weakest: October (64.4%)
Strongest calendar month
February
84.8% on-time · ~42 flights/mo
Busiest calendar month
December
~53 flights/mo avg
Weakest calendar month
October
64.4% on-time · ~51 flights/mo
Cancellation Rate
0.5%
6 of 1,317 flights
Diversion Rate
0.2%
2 of 1,317 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SAN - San Diego
Full on-time, delay-cause, and seasonal performance for San Diego, CA.
SAN 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 SAN and SAT side by side on delays, cancellations, and reliability.
Compare SAN vs SATOrigin-hub reliability standing
Softer reliability from SAN
Among 51 routes leaving SAN, only 4 (including this one) clear below 75% on-time, while 13 stay ≥85% and 34 sit mid-band. Travelers comparing SAN options should weigh this 74.8% print against those peers · fleet on-time rank #4513 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to SAN–SAT.
Routes with a similar on-time rate
What the Data Says About SAN to SAT
On-time performance on the SAN to SAT pairing (San Diego to San Antonio) trails a chunk of the network: 74.8% of 2,261 tracked flights arrived on schedule, with a 54.7-minute average delay on the ones that ran late. The route spans about 1,129 miles across 1 carrier. Cancellations over the trailing 24 months hit 0.5% (6 of 1,317 flights), with 0.2% diverted.
The monthly split is wide on this route: Sep 2025 posted the strongest performance at 84% on-time, while Jul 2024 came in at just 57% - a 27-point swing worth factoring into travel timing.
On the multi-year calendar, SAN–SAT peaks in February at 84.8% on-time while December carries the heaviest traffic (~53 flights per month) ; the softest month is October at 64.4%, a 20.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does SAN to SAT rank among US routes by traffic? ▼
How often are flights delayed from SAN to SAT? ▼
What is the cancellation rate for SAN to SAT? ▼
How far is the flight from SAN to SAT? ▼
When is the best time to fly from SAN 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 SAN–SAT data
SAN–SAT sits 4.2 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.
- Compare SAN and SAT airport profiles: delay causes and top routes differ even on the same corridor. SAN airport
- If your dates flex, February (84.8% on-time) beats October (64.4%) on this corridor. Seasonal chart
- 4 other routes post a similar 74.8% 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.