Route · SLC → SGU · 2020–2025 BTS data
Salt Lake City to St. George
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SLC to SGU (Salt Lake City to St. George) ranks #1427 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
- 67 min
- Delay when late
- 8,487
- Flights
- #1427 of 4927
- Corpus placement
Cancelled
0.1%
Best Month
Dec 2025 97%
Worst Month
Jul 2024 78%
Distance
272 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 119 | 4 | 0 | 0 | OO |
| Nov 2025 | 152 | 11 | 3 | 0 | OO |
| Oct 2025 | 178 | 16 | 0 | 0 | OO |
| Sep 2025 | 146 | 6 | 0 | 1 | OO |
| Aug 2025 | 132 | 7 | 0 | 0 | OO |
| Jul 2025 | 134 | 17 | 0 | 0 | OO |
| Jun 2025 | 130 | 11 | 0 | 0 | OO |
| May 2025 | 175 | 9 | 0 | 0 | OO |
| Apr 2025 | 146 | 18 | 0 | 0 | OO |
| Mar 2025 | 150 | 21 | 0 | 0 | OO |
| Feb 2025 | 113 | 8 | 0 | 0 | OO |
| Jan 2025 | 92 | 10 | 0 | 0 | OO |
| Dec 2024 | 93 | 9 | 0 | 0 | OO |
| Nov 2024 | 118 | 7 | 0 | 0 | OO |
| Oct 2024 | 141 | 15 | 0 | 0 | OO |
| Sep 2024 | 117 | 8 | 0 | 0 | OO |
| Aug 2024 | 119 | 24 | 0 | 1 | OO |
| Jul 2024 | 120 | 27 | 0 | 0 | OO |
| Jun 2024 | 94 | 7 | 0 | 1 | OO |
| May 2024 | 111 | 8 | 0 | 0 | OO |
| Apr 2024 | 116 | 6 | 0 | 0 | OO |
| Mar 2024 | 112 | 10 | 0 | 1 | OO |
| Feb 2024 | 87 | 10 | 0 | 1 | OO |
| Jan 2024 | 92 | 7 | 0 | 1 | OO |
SLC–SGU seasonal on-time pattern
Best: May (94.5%) · weakest: July (82.6%)
Strongest calendar month
May
94.5% on-time · ~115 flights/mo
Busiest calendar month
October
~148 flights/mo avg
Weakest calendar month
July
82.6% on-time · ~115 flights/mo
Cancellation Rate
0.1%
3 of 2,987 flights
Diversion Rate
0.2%
6 of 2,987 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 profileSGU - St. George
Full on-time, delay-cause, and seasonal performance for St. George, UT.
SGU on-time profileCompare the two airports
See SLC and SGU side by side on delays, cancellations, and reliability.
Compare SLC vs SGUOrigin-hub reliability standing
Among SLC's stronger departures
SLC → SGU 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 #84 of 4927 (highest on-time = #1).
Similar routes
Other BTS-tracked routes with comparable performance or trip length to SLC–SGU.
Routes with a similar on-time rate
What the Data Says About SLC to SGU
Salt Lake City to St. George (SLC to SGU) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 91.2% on-time rate across 8,487 flights, with delays that do happen averaging 66.8 minutes. The corridor runs roughly 272 miles and is served by 1 carrier. Over the most recent 24 months, 3 of 2,987 flights were cancelled (0.1%) and 6 diverted (0.2%).
The monthly split is wide on this route: Dec 2025 posted the strongest performance at 97% on-time, while Jul 2024 came in at just 78% - a 19-point swing worth factoring into travel timing.
On the multi-year calendar, SLC–SGU peaks in May at 94.5% on-time while October carries the heaviest traffic (~148 flights per month) ; the softest month is July at 82.6%, a 11.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does SLC to SGU rank among US routes by traffic? ▼
How often are flights delayed from SLC to SGU? ▼
What is the cancellation rate for SLC to SGU? ▼
How far is the flight from SLC to SGU? ▼
When is the best time to fly from SLC to SGU? ▼
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–SGU data
SLC–SGU 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 SGU airport profiles: delay causes and top routes differ even on the same corridor. SLC airport
- If your dates flex, May (94.5% on-time) beats July (82.6%) 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.