Historical on-time performance
Salt Lake City to Twin Falls
175 miData through May 2026Source: US DOT · BTS
Flights on SLC–TWF arrive on time 93% of the time over the last 12 months.
On-time rate93%arrived within 15 min
p90 delayon time1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights
based on 785 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time93%Medianon timep90on timeCancel0.5%Flights785
Why flights run late
Delay causes
- Airline64%
- Weather32%
- Air traffic (NAS)4%
- Late aircraft0%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. 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 SLC → TWF
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Overnights are the most reliable time of day to fly this route — 95% on time.
- Overnights95% on time · p90 on time · 1,043 flights
- Middays89% on time · p90 15 min · 928 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 89% to 96% on time.
- Tuesdays96% on time · p90 on time · 300 flights
- Saturdays94% on time · p90 on time · 288 flights
- Mondays94% on time · p90 5 min · 308 flights
- Sundays92% on time · p90 on time · 306 flights
- Wednesdays91% on time · p90 5 min · 305 flights
- Fridays91% on time · p90 5 min · 306 flights
- Thursdays89% on time · p90 20 min · 305 flights
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