San Francisco (SFO) to Indianapolis (IND): On-Time Performance
Data through May 2026
San Francisco (SFO) to Indianapolis (IND) effectively runs on two schedules. In February 2025, 100% of arrivals were on time; in July 2025 that fell to 67% — a 33-point seasonal swing. Across the full period the route averages 83% on-time against a national 78%.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 9 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 1.4
- last 12 months
- Duration
- 4h 23m
- scheduled
- Distance
- 1,943 mi
Monthly on-time trend
Best time to fly from SFO to IND
Aim for departures around 4 p.m. (88% on-time); avoid 9 p.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 11 min |
| Tuesdaybest | 89% | 6 min |
| Wednesday | 84% | 7 min |
| Thursday | 78% | 10 min |
| Friday | 83% | 11 min |
| Saturday | 86% | 8 min |
| Sunday | 82% | 8 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft41%
- Airline operations39%
- National airspace system18%
- Weather2%
Frequently asked questions
- How often are flights from SFO to IND delayed?
- 17% of SFO–IND flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 9 minutes.
- What is the best time of day to fly from SFO to IND?
- Departures around 4 p.m. have the best record (88% on-time), while departures around 9 p.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SFO to IND?
- The scheduled SFO–IND flight time averages 4h 23m over 1,943 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are SFO to IND flights cancelled?
- 0.5% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from SFO to IND?
- July 2025 was the roughest month in this dataset, with only 67% of arrivals on time. The best was February 2025 at 100%. If your dates are flexible, that 33-point gap is worth planning around.
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Based on 995 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.