Best Time to Fly IND to SFO: On-Time Stats by Hour & Airline
Indianapolis International → San Francisco International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 74.5% of Indianapolis (IND) to San Francisco (SFO) flights arrived on time (524 scheduled flights). That is 3.1 points below the national average of 77.6%.
United Airlines was the only reporting airline with regular flights on this route.
September has been the best month (91% on time) and Thursday the weakest day of the week (73%).
0.4% of flights were cancelled, versus 1.8% nationally.
IND to SFO on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| United Airlines | 74.5% | 78 min | 0.4% | 524 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly IND to SFO
On-time arrival % by scheduled departure hour (local time), 1,039 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 24 | |
| 6am–7am | 90.7% | 0.9% | 218 |
| 7am–8am | 83.0% | 1.6% | 322 |
| 8am–9am | 83.6% | 0.0% | 55 |
| 9am–10am | 81.0% | 0.0% | 95 |
| 10am–11am | Limited data | 16 | |
| 5pm–6pm | Limited data | 6 | |
| 6pm–7pm | 74.3% | 0.9% | 111 |
| 7pm–8pm | 56.8% | 0.5% | 191 |
| 8pm–9pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on IND to SFO
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 27 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 56.7% | -23.3 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 78.9% | -1.1 pts | 0.0% | 200 |
| All other days | 80.0% | — | 1.0% | 782 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).