Historical on-time performance
Salt Lake City to Idaho Falls
188 miData through Dec 2025Source: US DOT · BTS
Flights on SLC–IDA arrive on time 87% of the time over the last 12 months.
On-time rate87%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 1,081 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesbestOn-time94%Medianon timep905 minCancel0.2%Flights805
- Delta Air LinesOn-time68%Medianon timep9060 minCancel0.4%Flights276
Why flights run late
Delay causes
- Airline67%
- Weather12%
- Air traffic (NAS)7%
- Late aircraft14%
- Security0%
Most delay minutes here are attributed to Airline.
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 (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 86% to 96% on time.
- Mornings96% on time · p90 5 min · 92 flights · limited
- Middays91% on time · p90 10 min · 1,096 flights
- Evenings90% on time · p90 10 min · 896 flights
- Overnights86% on time · p90 20 min · 1,059 flights
- Afternoons86% on time · p90 25 min · 106 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 88% to 91% on time.
- Tuesdays91% on time · p90 5 min · 475 flights
- Saturdays91% on time · p90 10 min · 409 flights
- Fridays90% on time · p90 10 min · 476 flights
- Wednesdays89% on time · p90 15 min · 475 flights
- Sundays89% on time · p90 15 min · 465 flights
- Mondays88% on time · p90 20 min · 477 flights
- Thursdays88% on time · p90 15 min · 472 flights
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