Historical on-time performance
Salt Lake City to Idaho Falls
188 miData through May 2026Source: US DOT · BTS
Flights on SLC–IDA arrive on time 89% of the time over the last 12 months.
On-time rate89%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights
based on 1,077 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesbestOn-time93%Medianon timep905 minCancel0.1%Flights862
- Delta Air LinesOn-time74%Medianon timep9060 minCancel0.5%Flights215
Why flights run late
Delay causes
- Airline65%
- Weather18%
- Air traffic (NAS)7%
- Late aircraft9%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline50%
- Weather0%
- Air traffic (NAS)50%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 2 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 SLC → IDA
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 — 98% on time.
- Mornings98% on time · p90 on time · 109 flights · limited
- Middays92% on time · p90 10 min · 1,104 flights
- Evenings89% on time · p90 15 min · 892 flights
- Overnights86% on time · p90 25 min · 1,075 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 87% to 91% on time.
- Tuesdays91% on time · p90 5 min · 474 flights
- Saturdays91% on time · p90 10 min · 418 flights
- Fridays89% on time · p90 15 min · 483 flights
- Wednesdays88% on time · p90 15 min · 473 flights
- Sundays88% on time · p90 20 min · 471 flights
- Mondays88% on time · p90 20 min · 478 flights
- Thursdays87% on time · p90 15 min · 478 flights
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