Route profile
SJC→AUS
Flight reliability, delays and best times to fly from San Jose to Austin, 1,476 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 83% of comparable major US routes (4,598 compared)
Calculated from 3,935 flights. How this is calculated · What counts as on time
SJC → AUS arrives on time 79.8% of the time; the return trip, AUS → SJC, arrives on time 76.4% of the time, a 3.3-point gap between the two directions of the same city pair.
SJC → AUS spends 19.8 minutes on the ground on a 1,476-mile trip: 12.4 minutes from pushback to wheels-up at SJC and 7.4 minutes from touchdown to gate at AUS.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What sets this route apart
Where SJC to AUS differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
SJC to AUS struggles most at 3 PM: 61.1% of its flights scheduled then arrive on time, 10.6 points behind the 71.7% on routes of similar length at the same hour. Against all other routes the gap is 11.6 points.
SJC to AUS is at its best against routes of similar length for flights scheduled at 1 PM: 85.7% arrive on time, 9.8 points ahead of the 75.9% those routes manage at that hour. Against all other routes the gap is 8.6 points.
SJC to AUS holds up on Saturdays better than routes of similar length do: 88.9% on time to their 78.8%, a 10.1 points lead. Against all other routes the gap is 9.8 points.
In October, SJC to AUS runs 9 points below routes of similar length, 74.1% on time to 83.1%. Against all other routes the gap is 8.9 points.
January is kinder to SJC to AUS than to routes of similar length: 85.9% on time against 79.1%, 6.8 points better. Against all other routes the gap is 6.8 points.
SJC to AUS against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 3 PM departures | 61.1% | routes of similar length | 71.7% | −10.6 pts | 226 here, 76,767 there |
| Hour: 1 PM departures | 85.7% | routes of similar length | 75.9% | +9.8 pts | 126 here, 85,115 there |
| Weekday: Saturday | 88.9% | routes of similar length | 78.8% | +10.1 pts | 316 here, 188,840 there |
| Month: October | 74.1% | routes of similar length | 83.1% | −9.0 pts | 328 here, 121,923 there |
| Month: January | 85.9% | routes of similar length | 79.1% | +6.8 pts | 283 here, 105,371 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 1,476 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
When it goes wrong
July 2023 – July 2026
32 min late
against a median of 2 min early
Percentiles over 3,935 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at AUS after arriving from SJC.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 43% | Likely to miss |
| 45 min | 19% | High risk |
| 60 min | 11% | Some risk |
| 90 min | 4.8% | Low risk |
| 120 min | 2.3% | Low risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 0.18% of the time and diverts 0.28% of the time, which a late arrival never shows up in.
Chance of missing is the share of 3,917 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 32 minutes late (90th-percentile gate arrival delay), over 3,935 operations.
Any other layover length: connection checker.
Best time to fly
SJC → AUS flights departing 5–9 AM arrived on time 94.3% of the time, against 67.7% for 6–9 PM departures, a gap of 26.6 percentage points.
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 94.7% on time from 720 flights
- 7 AM: 95.9% on time from 267 flights
- 8 AM: 90.7% on time from 194 flights
- 9 AM: 84.0% on time from 320 flights
- 10 AM: 77.4% on time from 369 flights
- 11 AM: 76.9% on time from 296 flights
- 12 PM: too few flights to score
- 1 PM: 85.7% on time from 126 flights
- 2 PM: 70.8% on time from 252 flights
- 3 PM: 61.1% on time from 226 flights
- 4 PM: too few flights to score
- 5 PM: 73.5% on time from 237 flights
- 6 PM: 68.3% on time from 571 flights
- 7 PM: 64.6% on time from 147 flights
- 8 PM to 11 PM: too few flights to score
Why SJC → AUS runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for SJC → AUS. Only delays of 15 minutes or more are attributed. What the five causes mean
Late-arriving aircraft is the largest cause on SJC → AUS, at 55.7%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 94.3% of the time and 6–9 PM departures 67.7%.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| Southwest Airlines | 3,606 | 80.2% | 0.19% | -2 min | 4.7% |
| SkyWest Airlines | 326 | 75.2% | 0.00% | 2 min | 5.8% |
Southwest Airlines flew 91.7% of the 3,932 flights listed.
Southwest Airlines arrived on time 5.0 percentage points more often than SkyWest Airlines on this route.
Weekly and seasonal patterns
By day of week
Saturday is historically the most reliable day and Friday the least, a gap of 13.2 percentage points.
By month
- Jan: 85.9%
- Feb: 82.1%
- Mar: 84.3%
- Apr: 81.8%
- May: 72.3%
- Jun: 73.8%
- Jul: 75.5%
- Aug: 81.1%
- Sep: 85.9%
- Oct: 74.1%
- Nov: 81.3%
- Dec: 81.8%
May is historically the weakest month and September the strongest, a spread of 13.6 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 74.1% from 166 flights
- August 2023: 77.0% from 174 flights
- September 2023: 84.2% from 134 flights
- October 2023: 75.9% from 137 flights
- November 2023: 79.9% from 139 flights
- December 2023: 84.4% from 141 flights
- January 2024: too few flights to score (112)
- February 2024: too few flights to score (96)
- March 2024: too few flights to score (100)
- April 2024: too few flights to score (108)
- May 2024: too few flights to score (104)
- June 2024: too few flights to score (99)
- July 2024: too few flights to score (106)
- August 2024: too few flights to score (101)
- September 2024: too few flights to score (98)
- October 2024: too few flights to score (97)
- November 2024: too few flights to score (99)
- December 2024: too few flights to score (102)
- January 2025: too few flights to score (90)
- February 2025: too few flights to score (84)
- March 2025: too few flights to score (96)
- April 2025: too few flights to score (105)
- May 2025: too few flights to score (108)
- June 2025: too few flights to score (107)
- July 2025: too few flights to score (111)
- August 2025: too few flights to score (96)
- September 2025: too few flights to score (95)
- October 2025: too few flights to score (94)
- November 2025: too few flights to score (95)
- December 2025: too few flights to score (93)
- January 2026: too few flights to score (86)
- February 2026: too few flights to score (83)
- March 2026: too few flights to score (98)
- April 2026: too few flights to score (101)
- May 2026: too few flights to score (104)
- June 2026: too few flights to score (87)
- July 2026: too few flights to score (89)
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 75.0% against 83.6% in the 12 months before — declining by 8.6 percentage points.
Data and methodology
Calculated by FlyerIntel from 3,935 SJC → AUS flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed