Route · SLC → BTM · 2020–2025 BTS data
Salt Lake City to Butte
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SLC to BTM (Salt Lake City to Butte) ranks #3186 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 91.2%
- On-time
- +12.2 pts
- vs US avg
- 78 min
- Delay when late
- 3,310
- Flights
- #3186 of 4927
- Corpus placement
Cancelled
0.0%
Best Month
Oct 2024 98%
Worst Month
Jun 2024 80%
Distance
358 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Oct 2025 | 31 | 1 | 0 | 0 | OO |
| Sep 2025 | 30 | 2 | 0 | 0 | OO |
| Aug 2025 | 31 | 0 | 0 | 0 | OO |
| Jul 2025 | 31 | 2 | 0 | 1 | OO |
| Jun 2025 | 30 | 0 | 0 | 0 | OO |
| May 2025 | 30 | 1 | 0 | 0 | OO |
| Dec 2024 | 58 | 6 | 0 | 0 | OO |
| Nov 2024 | 56 | 9 | 0 | 0 | OO |
| Oct 2024 | 57 | 1 | 0 | 0 | OO |
| Sep 2024 | 58 | 7 | 0 | 0 | OO |
| Aug 2024 | 62 | 4 | 0 | 0 | OO |
| Jul 2024 | 62 | 8 | 0 | 0 | OO |
| Jun 2024 | 56 | 11 | 0 | 1 | OO |
| May 2024 | 58 | 4 | 0 | 0 | OO |
| Apr 2024 | 55 | 4 | 0 | 0 | OO |
| Mar 2024 | 58 | 4 | 0 | 0 | OO |
| Feb 2024 | 54 | 3 | 0 | 0 | OO |
| Jan 2024 | 56 | 8 | 0 | 0 | OO |
| Dec 2023 | 55 | 2 | 0 | 0 | OO |
| Nov 2023 | 56 | 2 | 0 | 0 | OO |
| Oct 2023 | 57 | 1 | 0 | 0 | OO |
| Sep 2023 | 56 | 2 | 0 | 0 | OO |
| Aug 2023 | 57 | 3 | 0 | 2 | OO |
| Jul 2023 | 58 | 5 | 0 | 0 | OO |
SLC–BTM seasonal on-time pattern
Best: August (94.3%) · weakest: December (86.6%)
Strongest calendar month
August
94.3% on-time · ~50 flights/mo
Busiest calendar month
December
~57 flights/mo avg
Weakest calendar month
December
86.6% on-time · ~57 flights/mo
Cancellation Rate
0.0%
0 of 1,212 flights
Diversion Rate
0.3%
4 of 1,212 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.
SLC on-time profileBTM - Butte
Full on-time, delay-cause, and seasonal performance for Butte, MT.
BTM on-time profileCompare the two airports
See SLC and BTM side by side on delays, cancellations, and reliability.
Compare SLC vs BTMOrigin-hub reliability standing
Among SLC's stronger departures
SLC → BTM posts a 91.2% on-time rate, landing in the ≥85% band with 54 of 85 BTS-tracked routes leaving Salt Lake City. The same hub also shows 31 mid-band and 0 challenged departures · fleet-wide on-time rank #83 of 4927 (highest on-time = #1).
Similar routes
Other BTS-tracked routes with comparable performance or trip length to SLC–BTM.
Routes with a similar on-time rate
What the Data Says About SLC to BTM
Salt Lake City to Butte (SLC to BTM) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 91.2% on-time rate across 3,310 flights, with delays that do happen averaging 78.3 minutes. The corridor runs roughly 358 miles and is served by 1 carrier. Over the most recent 24 months, 0 of 1,212 flights were cancelled (0.0%) and 4 diverted (0.3%).
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 98% on-time, while Jun 2024 came in at just 80% - a 18-point swing worth factoring into travel timing.
On the multi-year calendar, SLC–BTM peaks in August at 94.3% on-time while December carries the heaviest traffic (~57 flights per month) ; the softest month is December at 86.6%, a 7.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does SLC to BTM rank among US routes by traffic? ▼
How often are flights delayed from SLC to BTM? ▼
What is the cancellation rate for SLC to BTM? ▼
How far is the flight from SLC to BTM? ▼
When is the best time to fly from SLC to BTM? ▼
Airports on this route
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.
Using SLC–BTM data
SLC–BTM runs 12.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare SLC and BTM airport profiles: delay causes and top routes differ even on the same corridor. SLC airport
- If your dates flex, August (94.3% on-time) beats December (86.6%) on this corridor. Seasonal chart
- 4 other routes post a similar 91.2% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
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.