Route · SAT → SAN · 2020–2025 BTS data
San Antonio to San Diego
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SAT to SAN (San Antonio to San Diego) ranks #3710 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 81.5%
- On-time
- +2.5 pts
- vs US avg
- 57 min
- Delay when late
- 2,199
- Flights
- #3710 of 4927
- Corpus placement
Cancelled
0.2%
Best Month
Nov 2024 91%
Worst Month
Jun 2025 66%
Distance
1,129 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 60 | 15 | 1 | 0 | WN |
| Nov 2025 | 56 | 8 | 1 | 1 | WN |
| Oct 2025 | 57 | 11 | 0 | 0 | WN |
| Sep 2025 | 56 | 10 | 0 | 1 | WN |
| Aug 2025 | 57 | 8 | 0 | 0 | WN |
| Jul 2025 | 61 | 17 | 0 | 0 | WN |
| Jun 2025 | 59 | 20 | 0 | 0 | WN |
| May 2025 | 43 | 8 | 0 | 0 | WN |
| Apr 2025 | 47 | 7 | 0 | 0 | WN |
| Mar 2025 | 54 | 7 | 0 | 0 | WN |
| Feb 2025 | 36 | 4 | 0 | 0 | WN |
| Jan 2025 | 37 | 4 | 0 | 0 | WN |
| Dec 2024 | 60 | 19 | 1 | 4 | WN |
| Nov 2024 | 56 | 5 | 0 | 0 | WN |
| Oct 2024 | 58 | 13 | 0 | 0 | WN |
| Sep 2024 | 60 | 10 | 0 | 0 | WN |
| Aug 2024 | 62 | 6 | 0 | 0 | WN |
| Jul 2024 | 61 | 16 | 0 | 0 | WN |
| Jun 2024 | 59 | 15 | 0 | 0 | WN |
| May 2024 | 58 | 17 | 0 | 0 | WN |
| Apr 2024 | 56 | 16 | 0 | 0 | WN |
| Mar 2024 | 52 | 12 | 0 | 0 | WN |
| Jan 2024 | 38 | 9 | 0 | 0 | WN |
| Dec 2023 | 62 | 10 | 0 | 0 | WN |
SAT–SAN seasonal on-time pattern
Best: February (94.1%) · weakest: June (73.4%)
Strongest calendar month
February
94.1% on-time · ~43 flights/mo
Busiest calendar month
December
~53 flights/mo avg
Weakest calendar month
June
73.4% on-time · ~47 flights/mo
Cancellation Rate
0.2%
3 of 1,305 flights
Diversion Rate
0.5%
6 of 1,305 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SAT - San Antonio
Full on-time, delay-cause, and seasonal performance for San Antonio, TX.
SAT on-time profileSAN - San Diego
Full on-time, delay-cause, and seasonal performance for San Diego, CA.
SAN on-time profileCompare the two airports
See SAT and SAN side by side on delays, cancellations, and reliability.
Compare SAT vs SANOrigin-hub reliability standing
Mid-pack among SAT departures
From SAT, this corridor sits with 12 other 75–85% on-time routes out of 31 tracked departures, not the hub's reliability leaders (17 at ≥85%) and not the softest ( 2 below 75%). Destination: San Diego · fleet on-time rank #2557 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to SAT–SAN.
Routes with a similar on-time rate
What the Data Says About SAT to SAN
2,199 tracked flights put the SAT to SAN pairing (San Antonio to San Diego) at a 81.5% on-time rate, squarely in line with the wider network. Delays that do occur run 56.9 minutes on average. Across the 1,129-mile route and its 1 carrier, the trailing 24 months show 0.2% cancelled and 0.5% diverted (1,305 flights sampled).
The monthly split is wide on this route: Nov 2024 posted the strongest performance at 91% on-time, while Jun 2025 came in at just 66% - a 25-point swing worth factoring into travel timing.
On the multi-year calendar, SAT–SAN peaks in February at 94.1% on-time while December carries the heaviest traffic (~53 flights per month) ; the softest month is June at 73.4%, a 20.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does SAT to SAN rank among US routes by traffic? ▼
How often are flights delayed from SAT to SAN? ▼
What is the cancellation rate for SAT to SAN? ▼
How far is the flight from SAT to SAN? ▼
When is the best time to fly from SAT to SAN? ▼
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 SAT–SAN data
SAT–SAN is mid-pack at 81.5% on-time; month and carrier mix move more than the corridor headline.
- Compare SAT and SAN airport profiles: delay causes and top routes differ even on the same corridor. SAT airport
- If your dates flex, February (94.1% on-time) beats June (73.4%) on this corridor. Seasonal chart
- 4 other routes post a similar 81.5% 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.