Route
SFO → AUS
San Francisco International Airport Austin Bergstrom International Airport
Alerts at SFO and AUS
How punctual is this route?
- On-time arrivals
- 71.8%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 69 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,786
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 55%
- Airline (crew, maintenance, cleaning) 27%
- Air traffic control & airport 16%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 84.1% | 227 |
| October 2025 | 79.6% | 253 |
| November 2025 | 75.3% | 250 |
| December 2025 | 74.5% | 260 |
| January 2026 | 75.6% | 204 |
| February 2026 | 75.8% | 182 |
| March 2026 | 80.9% | 210 |
| April 2026 | 72.7% | 220 |
| May 2026 | 62.7% | 253 |
| June 2026 | 61.4% | 242 |
| July 2026 | 64.1% | 251 |
| August 2026 | 57.7% | 234 |
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 |
|---|---|---|---|---|
| United Airlines | 1,637 | 79.6% | 0.4% | 60 min |
| Delta Air Lines | 500 | 64.8% | 1.2% | 90 min |
| Southwest Airlines | 411 | 40.1% | 0.0% | 67 min |
| Alaska Airlines | 225 | 87.5% | 0.4% | 79 min |
| SkyWest Airlines | 13 | 84.6% | 0.0% | 48 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL381
29% late · 365 flights
-
UA1116
19% late · 308 flights
-
UA2332
16% late · 266 flights
-
UA1107
4% late · 215 flights
-
UA1326
20% late · 211 flights
-
DL1077
53% late · 135 flights
-
AS512
7% late · 128 flights
-
AS534
20% late · 94 flights
-
UA1807
17% late · 72 flights
-
WN833
69% late · 64 flights
-
UA2004
23% late · 58 flights
-
WN3496
31% late · 58 flights
-
WN358
74% late · 58 flights
-
UA717
26% late · 56 flights
-
UA391
15% late · 55 flights
-
UA373
49% late · 54 flights
-
WN4227
46% late · 52 flights
-
WN3633
88% late · 43 flights
-
UA2056
19% late · 36 flights
-
UA2072
22% late · 36 flights
-
UA1375
49% late · 35 flights
-
UA2126
24% late · 33 flights
-
WN2031
58% late · 31 flights
-
WN421
45% late · 31 flights
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