Flight number record
OO 3797
SkyWest Airlines · Salt Lake City to Oakland
- Route
- SLC → OAK
- Departs
- 22:50
- Flights
- 349
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s OO 3797, 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 3797 earns an A+. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 16 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 349 flights, with a median arrival 12 minutes early.
Set against the rest of the country, OO 3797's record is 16 points better than the US average of 77.6%. That gap is worth roughly 161 fewer late arrivals for every thousand flights.
Key figures
On time
93.7%
Arrivals under 15 minutes late, of 348 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.81%
1 hour+ late
2.0%
National rate is 8.1%
These figures cover 349 flights between July 2025 and June 2026. The median arrival is 12 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.
Schedule
When OO 3797 flies
OO 3797 flies SLC to OAK without a single fixed slot. Its most common scheduled departure was 22:50, used on 106 of 349 flights, with 22:55 (94 flights) and 22:45 (39 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 22:50106 flights30.4%
- Departs 22:5594 flights26.9%
- Departs 22:4539 flights11.2%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 22:50 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and OO 3797 runs 23 points better at 93.7%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
OO 3797 next to SLC to OAK
Every carrier on SLC to OAK combined arrived on time 90.2% of the time across 1,670 flights, so OO 3797 is 4 points ahead of it. SkyWest flew 1,074 flights on the same city pair under all its flight numbers, including this one, and those ran 92.4% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 15 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 3797thin sample | 349 | 93.7% | 66 min | 0.00% | A+ |
| All SkyWest Airlines on SLC–OAK | 1,074 | 92.4% | 53 min | 0.19% | A+ |
| All carriers on SLC–OAK | 1,670 | 90.2% | 53 min | 0.18% | A+ |
| SkyWest Airlines, whole network | 852,935 | 79.0% | 88 min | 1.77% | B |
Across the year
OO 3797 quarter by quarter
Quarter by quarter OO 3797 held fairly steady: 95.7% in Jul–Sep 2025, 94.9% in Oct–Dec 2025, 87.2% in Jan–Mar 2026 and 96.7% in Apr–Jun 2026. A spread of 10 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202592 flights95.7%
- Oct–Dec 202580 flights94.9%
- Jan–Mar 202686 flights87.2%
- Apr–Jun 202691 flights96.7%
Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, OO 3797 did best on Tuesday at 100.0% on time and worst on Wednesday at 86.0%. Each day rests on about 50 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Delay causes
Why OO 3797 runs late
One category carries most of the weight here. Carrier accounts for 90% of the 1,447 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 90%Carrier
- 7%Extreme weather
- 2%National Airspace System
- 1%Security
The largest share of delay minutes, 90%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 1,300 of the 1,447 delay minutes reported here. The split is drawn from 1,447 delay minutes reported on OO 3797.
Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are 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 2.0% land an hour or more behind schedule, against 8.1% 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 588 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The same number turns up on two other city pairs in the data, including MKE to MSP (14) and MSP to MKE (14), but none flew often enough under OO 3797 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SLC to OAK only.
One caution: this is a thin sample. 349 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.
What to do with this
Booking OO 3797
For a booking, OO 3797 has one of the better records a US domestic flight can show: 93.7% on time and 0.00% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- SLC to OAK, every carrier and departure
- OAK to SLC, the return direction
- SkyWest Airlines 4134 on the same route92.8%
- SkyWest Airlines 3903 on the same route91.6%
- Salt Lake City International (SLC) delay statistics
- Oakland International (OAK) 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.