61% of AUS → SAN flights arrived on time in June-August 2026 (501 flights). The most reliable was WN 4469, on time 100% of the time on this route. Morning flights did best (85%), evening flights worst (41%). Austin (AUS): major delays, Avg 1 hour and 5 minutes, max 3 hours and 3 minutes. San Diego (SAN): no delay reported.
Best time of day to fly AUS → SAN
| Morning (before noon) | |
| Afternoon (noon-5 PM) | |
| Evening (after 5 PM) |
Flights AUS → SAN, most reliable first
| Flight | Departs | On time on this route | Cancelled |
|---|---|---|---|
| WN 4469 Southwest | 6:45 AM | 1.6% | |
| OO 3293 SkyWest | 6:00 AM | 2.2% | |
| OO 3084 SkyWest | 2:59 PM | 1.4% | |
| OO 3249 SkyWest | 7:59 PM | 3.7% | |
| WN 391 Southwest | 6:10 PM | 0% | |
| WN 1435 Southwest | 10:05 AM | 1.4% | |
| WN 389 Southwest | 12:00 PM | 0% | |
| WN 2593 Southwest | 8:30 PM | 1.4% |
AUS conditions · SAN conditions · SAN → AUS · Cancellations
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From BTS on-time data, June-August 2026; flights with 20+ trips on this route. On-time rates cover each flight number's whole day, which can include other legs. Departure times are local.