Historical on-time performance
Indianapolis to San Francisco
1,943 miData through May 2026Source: US DOT · BTS
Flights on IND–SFO arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 500 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time78%Medianon timep9050 minCancel0.6%Flights500
Why flights run late
Delay causes
- Airline31%
- Weather1%
- Air traffic (NAS)32%
- Late aircraft36%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline67%
- Weather0%
- Air traffic (NAS)33%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 3 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly IND → SFO
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 84% on time.
- Mornings84% on time · p90 25 min · 1,043 flights
- Evenings66% on time · p90 65 min · 302 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 77% to 84% on time.
- Wednesdays84% on time · p90 25 min · 182 flights · limited
- Tuesdays83% on time · p90 25 min · 174 flights · limited
- Saturdays80% on time · p90 35 min · 171 flights · limited
- Fridays79% on time · p90 40 min · 200 flights
- Mondays78% on time · p90 35 min · 213 flights
- Thursdays78% on time · p90 45 min · 211 flights
- Sundays77% on time · p90 40 min · 211 flights
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