Flight number record
OO 3798
SkyWest Airlines · Salt Lake City to Kalispell
- Route
- SLC → FCA
- Departs
- 15:40
- Flights
- 323
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 3798, check with SkyWest Airlines. SkyWest Airlines flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
OO 3798 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 11 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 323 flights, with a median arrival 4 minutes early.
Set against the rest of the country, OO 3798's record is 11 points better than the US average of 77.3%. That gap is worth roughly 108 fewer late arrivals for every thousand flights.
Key figures
On time
88.1%
Arrivals under 15 minutes late, of 320 completed flights
Avg delay
55 min
Across delayed arrivals only, not all flights
Cancelled
0.62%
National rate is 1.89%
1 hour+ late
3.4%
National rate is 8.3%
These figures cover 323 flights between September 2025 and August 2026. The median arrival is 4 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When OO 3798 flies
OO 3798 flies SLC to FCA without a single fixed slot. Its most common scheduled departure was 15:40, used on 93 of 323 flights, with 15:32 (40 flights) and 15:28 (36 flights) next.
- Departs 15:4093 flights28.8%
- Departs 15:3240 flights12.4%
- Departs 15:2836 flights11.1%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 15:40 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and OO 3798 runs 16 points better at 88.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
OO 3798 next to SLC to FCA
Every carrier on SLC to FCA combined arrived on time 88.6% of the time across 1,125 flights, so OO 3798 is about level with it. SkyWest flew 678 flights on the same city pair under all its flight numbers, including this one, and those ran 91.0% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 3798thin sample | 323 | 88.1% | 55 min | 0.62% | A+ |
| All SkyWest Airlines on SLC–FCA | 678 | 91.0% | 59 min | 0.88% | A+ |
| All carriers on SLC–FCA | 1,125 | 88.6% | 68 min | 0.71% | A+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 3798 quarter by quarter
OO 3798 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.3% on time and its weakest Jul–Sep 2026 at 74.4%, a swing of 19 points on roughly 65 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights93.3%
- Oct–Dec 202586 flights91.8%
- Jan–Mar 202677 flights84.0%
- Apr–Jun 202691 flights92.3%
- Jul–Sep 202639 flights74.4%
Scale runs 65% to 100%.
By weekday, OO 3798 ranged from 82.7% on Monday to 93.2% on Tuesday. With about 46 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late OO 3798 runs when it is late
The 38 late arrivals split 17 under half an hour, 10 between 30 and 60 minutes, and 11 an hour or more.
- 15+ min early53 flights16.6%
- Within 15 min229 flights71.6%
- 15–29 min late17 flights5.3%
- 30–59 min late10 flights3.1%
- 1–2 hours late8 flights2.5%
- 2+ hours late3 flights0.9%
Scale runs 0% to 100%.
Share of 320 completed flights by arrival against schedule.
9 of 40 late departures made up the time and arrived on time, 23% of them. 7 flights left on time and still arrived late.
The worst days
Worst days for OO 3798
The latest arrival of the period was on 3 August 2026, 4 hours 4 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 3 August 2026 | 4 hours 4 minutes | Carrier |
| 18 February 2026 | 3 hours 8 minutes | Carrier |
| 15 January 2026 | 2 hours 40 minutes | Extreme weather |
| 7 June 2026 | 1 hour 56 minutes | Carrier |
| 26 July 2026 | 1 hour 53 minutes | Carrier |
Delay causes
Why OO 3798 runs late
Carrier accounts for 58% of the 2,094 delay minutes carriers reported here, and the remaining four split what is left.
- 58%Carrier
- 34%Extreme weather
- 8%National Airspace System
Extreme weather accounts for 34% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 5.6 times the usual weather exposure. The split is drawn from 2,094 delay minutes reported on OO 3798.
Cancellations are rare at 0.62%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 3.4% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 532 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
OO 3798 is not only a SLC to FCA flight. It also flew FCA to SLC (323 flights, 89.7% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.
One caution: this is a thin sample. 323 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| FCA to SLCthin sample | 323 | 89.7% | 59 min | 0.93% | A+ |
What to do with this
Booking OO 3798
For a booking, OO 3798 has one of the better records a US domestic flight can show: 88.1% on time and 0.62% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- SLC to FCA, every carrier and departure
- FCA to SLC, the return direction
- Delta Air Lines 1464 on the same route82.3%
- Salt Lake City International (SLC) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
A flight number here means SkyWest Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.