Historical on-time performance
Indianapolis to Salt Lake City
1,355 miData through May 2026Source: US DOT · BTS
Flights on IND–SLC arrive on time 87% of the time over the last 12 months.
On-time rate87%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights
based on 336 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesOn-time87%Medianon timep9015 minCancel1.2%Flights336
Why flights run late
Delay causes
- Airline56%
- Weather7%
- Air traffic (NAS)37%
- Late aircraft0%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline75%
- Weather25%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 4 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 → SLC
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best day of week
On-time rates are fairly even by day on this route — ranging from 80% to 93% on time.
- Wednesdays93% on time · p90 5 min · 116 flights · limited
- Thursdays93% on time · p90 10 min · 115 flights · limited
- Tuesdays92% on time · p90 10 min · 116 flights · limited
- Fridays91% on time · p90 10 min · 116 flights · limited
- Saturdays90% on time · p90 5 min · 116 flights · limited
- Sundays89% on time · p90 10 min · 116 flights · limited
- Mondays80% on time · p90 25 min · 116 flights · limited
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