Salt Lake City (SLC) to Twin Falls (TWF): On-Time Performance
Data through May 2026
The calendar drives reliability on SLC–TWF. September 2025 flights landed on schedule 100% of the time, but December 2024 dropped to 83% — a gap of 18 points. Across the full period the route averages 92% on-time against a national 78%.
- On-time
- 92%
- arrived <15 min late
- Avg delay
- 6 min
- completed flights
- Cancelled
- 0.3%
- Flights/day
- 2.2
- last 12 months
- Duration
- 59m
- scheduled
- Distance
- 175 mi
Monthly on-time trend
Best time to fly from SLC to TWF
Aim for departures around 9 p.m. (95% on-time); avoid 11 a.m. departures (87%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 94% | 3 min |
| Tuesday | 96% | 3 min |
| Wednesday | 91% | 8 min |
| Thursday | 88% | 13 min |
| Friday | 91% | 5 min |
| Saturdaybest | 96% | 3 min |
| Sunday | 91% | 10 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Airline operations72%
- National airspace system4%
- Weather23%
Frequently asked questions
- How often are flights from SLC to TWF delayed?
- 8% of SLC–TWF flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 6 minutes.
- What is the best time of day to fly from SLC to TWF?
- Departures around 9 p.m. have the best record (95% on-time), while departures around 11 a.m. have the worst (87%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SLC to TWF?
- The scheduled SLC–TWF flight time averages 59m over 175 miles. Actual arrival times vary — flights on this route land 15+ minutes late 8% of the time.
- How often are SLC to TWF flights cancelled?
- 0.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from SLC to TWF?
- December 2024 was the roughest month in this dataset, with only 83% of arrivals on time. The best was September 2025 at 100%. If your dates are flexible, that 18-point gap is worth planning around.
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Based on 1,482 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.