Flight number record
OO 3797
SkyWest Airlines · Salt Lake City to Oakland
- Route
- SLC → OAK
- Departs
- 22:50
- Flights
- 349
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 77.3%. 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 77.3%. That gap is worth roughly 158 fewer late arrivals for every thousand flights.
Key figures
On time
93.1%
Arrivals under 15 minutes late, of 348 completed flights
Avg delay
58 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
1.7%
National rate is 8.3%
These figures cover 349 flights between September 2025 and August 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.
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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 122 of 349 flights, with 22:55 (87 flights) and 22:45 (39 flights) next.
- Departs 22:50122 flights35.0%
- Departs 22:5587 flights24.9%
- Departs 22:4539 flights11.2%
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 22:50 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and OO 3797 runs 23 points better at 93.1%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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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 1,621 flights, so OO 3797 is 3 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 91.8% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 14 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 3797thin sample | 349 | 93.1% | 58 min | 0.00% | A+ |
| All SkyWest Airlines on SLC–OAK | 1,074 | 91.8% | 54 min | 0.19% | A+ |
| All carriers on SLC–OAK | 1,621 | 90.2% | 55 min | 0.19% | A+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 3797 quarter by quarter
OO 3797 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Jan–Mar 2026 at 87.2%, a swing of 13 points on roughly 70 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 flights100.0%
- Oct–Dec 202580 flights94.9%
- Jan–Mar 202686 flights87.2%
- Apr–Jun 202691 flights96.7%
- Jul–Sep 202662 flights90.3%
Scale runs 80% to 100%.
By weekday, OO 3797 did best on Tuesday at 100.0% on time and worst on Sunday at 87.5%. Each day rests on about 50 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 3797 runs when it is late
OO 3797 often beats the schedule: 139 of 348 completed flights, 40%, arrived 15 minutes or more early. The 24 late arrivals split 11 under half an hour, 7 between 30 and 60 minutes, and 6 an hour or more.
- 15+ min early139 flights39.9%
- Within 15 min185 flights53.2%
- 15–29 min late11 flights3.2%
- 30–59 min late7 flights2.0%
- 1–2 hours late5 flights1.4%
- 2+ hours late1 flights0.3%
Scale runs 0% to 100%.
Share of 348 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 22 departures that left 15 minutes late or more, only 2 made it up before arrival. Only 4 left on time and still arrived late.
The worst days
Worst days for OO 3797
The latest arrival of the period was on 23 January 2026, 7 hours 20 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 23 January 2026 | 7 hours 20 minutes | Carrier |
| 12 April 2026 | 1 hour 57 minutes | Carrier |
| 14 August 2026 | 1 hour 47 minutes | Carrier |
| 18 February 2026 | 1 hour 45 minutes | Carrier |
| 9 February 2026 | 1 hour 4 minutes | Carrier |
Delay causes
Why OO 3797 runs late
Carrier accounts for 94% of the 1,392 delay minutes carriers reported here, and the remaining four split what is left.
- 94%Carrier
- 3%Extreme weather
- 2%National Airspace System
- 1%Security
The largest share of delay minutes, 94%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,305 of the 1,392 delay minutes reported here. The split is drawn from 1,392 delay minutes reported on OO 3797.
Cancellations are rare at 0.00%, below the national 1.89% 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 1.7% 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 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.
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: 93.1% 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 route92.6%
- SkyWest Airlines 3903 on the same route90.4%
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.