Route
AUS → SFO
Austin Bergstrom International Airport San Francisco International Airport
Alerts at AUS and SFO
How punctual is this route?
- On-time arrivals
- 72.4%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 71 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,788
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 48%
- Late-arriving aircraft 32%
- Airline (crew, maintenance, cleaning) 20%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 83.3% | 228 |
| October 2025 | 84.8% | 252 |
| November 2025 | 81.9% | 251 |
| December 2025 | 83.4% | 261 |
| January 2026 | 77.9% | 203 |
| February 2026 | 77.3% | 182 |
| March 2026 | 85.2% | 210 |
| April 2026 | 60.0% | 220 |
| May 2026 | 53.2% | 253 |
| June 2026 | 55.1% | 243 |
| July 2026 | 57.4% | 251 |
| August 2026 | 72.6% | 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 | 1,638 | 75.5% | 0.4% | 79 min |
| Delta Air Lines | 500 | 69.2% | 1.0% | 67 min |
| Southwest Airlines | 411 | 57.0% | 0.5% | 58 min |
| Alaska Airlines | 226 | 84.4% | 0.9% | 60 min |
| SkyWest Airlines | 13 | 84.6% | 0.0% | 27 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL381
25% late · 365 flights
-
UA1668
29% late · 361 flights
-
UA292
39% late · 328 flights
-
UA2177
7% late · 270 flights
-
DL1077
45% late · 135 flights
-
AS513
9% late · 126 flights
-
AS518
24% late · 100 flights
-
UA1336
39% late · 90 flights
-
UA442
32% late · 81 flights
-
UA1688
18% late · 76 flights
-
UA1749
17% late · 61 flights
-
WN4779
65% late · 60 flights
-
WN1588
67% late · 58 flights
-
WN2172
18% late · 58 flights
-
UA210
2% late · 55 flights
-
UA1348
9% late · 46 flights
-
UA694
12% late · 40 flights
-
WN833
20% late · 30 flights
-
WN1058
48% late · 27 flights
-
WN4363
37% late · 27 flights
-
UA1061
35% late · 24 flights
-
UA477
4% late · 24 flights
-
WN2740
21% late · 24 flights
-
UA577
0% late · 22 flights
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