Route · SLC → TWF · 2020–2025 BTS data
Salt Lake City to Twin Falls
The SLC–TWF corridor (Salt Lake City, UT → Twin Falls, ID) runs ahead of the national average, served by 1 carrier across roughly 175 miles.
Data updated 2026-06-13
- 91.6%
- On-time
- +12.6 pts
- vs US avg
- 90 min
- Delay when late
- 4,004
- Flights
Cancelled
0.1%
Best Month
Sep 2025 100%
Worst Month
Dec 2024 84%
Distance
175 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 59 | 6 | 0 | 0 | OO |
| Nov 2025 | 57 | 5 | 0 | 0 | OO |
| Oct 2025 | 61 | 2 | 0 | 0 | OO |
| Sep 2025 | 60 | 0 | 0 | 0 | OO |
| Aug 2025 | 56 | 1 | 0 | 0 | OO |
| Jul 2025 | 62 | 6 | 0 | 0 | OO |
| Jun 2025 | 60 | 1 | 0 | 0 | OO |
| May 2025 | 62 | 2 | 0 | 0 | OO |
| Apr 2025 | 60 | 2 | 0 | 0 | OO |
| Mar 2025 | 62 | 5 | 0 | 0 | OO |
| Feb 2025 | 56 | 8 | 0 | 0 | OO |
| Jan 2025 | 61 | 4 | 0 | 0 | OO |
| Dec 2024 | 57 | 9 | 0 | 1 | OO |
| Nov 2024 | 46 | 4 | 0 | 0 | OO |
| Oct 2024 | 53 | 3 | 0 | 0 | OO |
| Sep 2024 | 56 | 6 | 0 | 0 | OO |
| Aug 2024 | 62 | 5 | 0 | 0 | OO |
| Jul 2024 | 62 | 8 | 0 | 0 | OO |
| Jun 2024 | 60 | 5 | 0 | 0 | OO |
| May 2024 | 62 | 6 | 0 | 0 | OO |
| Apr 2024 | 60 | 6 | 0 | 0 | OO |
| Mar 2024 | 62 | 3 | 0 | 0 | OO |
| Feb 2024 | 58 | 2 | 0 | 0 | OO |
| Jan 2024 | 62 | 6 | 2 | 0 | OO |
Cancellation Rate
0.1%
2 of 1,416 flights
Diversion Rate
0.1%
1 of 1,416 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
Origin airport →TWF - Twin Falls
Full on-time, delay-cause, and seasonal performance for Twin Falls, ID.
Destination airport →Compare the two airports
See SLC and TWF side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to SLC–TWF.
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What the Data Says About SLC to TWF
Salt Lake City to Twin Falls (SLC to TWF) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 91.6% on-time rate across 4,004 flights, with delays that do happen averaging 89.9 minutes. The corridor runs roughly 175 miles and is served by 1 carrier. Over the most recent 24 months, 2 of 1,416 flights were cancelled (0.1%) and 1 diverted (0.1%).
The monthly split is wide on this route: Sep 2025 posted the strongest performance at 100% on-time, while Dec 2024 came in at just 84% - a 16-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.