Route · SLC → HLN · 2020–2025 BTS data
Salt Lake City to Helena
The SLC–HLN corridor (Salt Lake City, UT → Helena, MT) runs ahead of the national average, served by 1 carrier across roughly 402 miles.
Data updated 2026-06-13
- 94.2%
- On-time
- +15.2 pts
- vs US avg
- 84 min
- Delay when late
- 4,470
- Flights
Cancelled
0.3%
Best Month
Dec 2025 100%
Worst Month
Jan 2024 82%
Distance
402 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 59 | 0 | 0 | 0 | OO |
| Nov 2025 | 59 | 2 | 2 | 0 | OO |
| Oct 2025 | 62 | 3 | 0 | 0 | OO |
| Sep 2025 | 60 | 1 | 0 | 0 | OO |
| Aug 2025 | 62 | 1 | 0 | 0 | OO |
| Jul 2025 | 62 | 2 | 0 | 0 | OO |
| Jun 2025 | 60 | 1 | 0 | 0 | OO |
| May 2025 | 62 | 3 | 0 | 0 | OO |
| Apr 2025 | 60 | 0 | 0 | 0 | OO |
| Mar 2025 | 62 | 1 | 0 | 0 | OO |
| Feb 2025 | 56 | 1 | 0 | 0 | OO |
| Jan 2025 | 61 | 5 | 1 | 2 | OO |
| Dec 2024 | 59 | 4 | 0 | 1 | OO |
| Nov 2024 | 59 | 3 | 0 | 0 | OO |
| Oct 2024 | 62 | 1 | 0 | 0 | OO |
| Sep 2024 | 60 | 1 | 0 | 0 | OO |
| Aug 2024 | 62 | 0 | 0 | 0 | OO |
| Jul 2024 | 62 | 4 | 0 | 0 | OO |
| Jun 2024 | 60 | 4 | 0 | 0 | OO |
| May 2024 | 62 | 4 | 0 | 0 | OO |
| Apr 2024 | 60 | 2 | 0 | 0 | OO |
| Mar 2024 | 62 | 6 | 0 | 0 | OO |
| Feb 2024 | 58 | 3 | 0 | 0 | OO |
| Jan 2024 | 68 | 12 | 2 | 0 | OO |
Cancellation Rate
0.3%
5 of 1,459 flights
Diversion Rate
0.2%
3 of 1,459 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 →HLN - Helena
Full on-time, delay-cause, and seasonal performance for Helena, MT.
Destination airport →Compare the two airports
See SLC and HLN 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–HLN.
Routes with a similar on-time rate
What the Data Says About SLC to HLN
Salt Lake City to Helena (SLC to HLN) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 94.2% on-time rate across 4,470 flights, with delays that do happen averaging 84.2 minutes. The corridor runs roughly 402 miles and is served by 1 carrier. Over the most recent 24 months, 5 of 1,459 flights were cancelled (0.3%) and 3 diverted (0.2%).
The monthly split is wide on this route: Dec 2025 posted the strongest performance at 100% on-time, while Jan 2024 came in at just 82% - a 18-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from SLC to HLN? ▼
What is the cancellation rate for SLC to HLN? ▼
How far is the flight from SLC to HLN? ▼
When is the best time to fly from SLC to HLN? ▼
Flight Guides
Tips and data-driven advice for choosing reliable routes.
Explore PlainFlights
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.