Flight number record
OO 3833
SkyWest Airlines · Salt Lake City to Lewiston
- Route
- SLC → LWS
- Departs
- 10:50
- Flights
- 255
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 3833, 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 3833 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 15 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 255 flights, with a median arrival 15 minutes early.
Set against the rest of the country, OO 3833's record is 15 points better than the US average of 77.3%. That gap is worth roughly 145 fewer late arrivals for every thousand flights.
Key figures
On time
91.8%
Arrivals under 15 minutes late, of 255 completed flights
Avg delay
65 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
3.5%
National rate is 8.3%
These figures cover 255 flights between September 2025 and August 2026. The median arrival is 15 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 3833 flies
OO 3833 flies SLC to LWS without a single fixed slot. Its most common scheduled departure was 10:50, used on 126 of 255 flights, with 10:45 (84 flights) and 10:55 (29 flights) next.
- Departs 10:50126 flights49.4%
- Departs 10:4584 flights32.9%
- Departs 10:5529 flights11.4%
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 10:50 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and OO 3833 runs 8 points better at 91.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
OO 3833 next to SLC to LWS
Every carrier on SLC to LWS combined arrived on time 93.1% of the time across 365 flights, so OO 3833 is about level with it. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 13 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 3833thin sample | 255 | 91.8% | 65 min | 0.00% | A+ |
| All SkyWest Airlines on SLC–LWS | 365 | 93.1% | 74 min | 0.00% | A+ |
| All carriers on SLC–LWS | 365 | 93.1% | 74 min | 0.00% | A+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 3833 quarter by quarter
Quarter by quarter OO 3833 held fairly steady: 88.9% in Jan–Mar 2026, 93.4% in Apr–Jun 2026 and 91.9% in Jul–Sep 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Oct–Dec 202512 flights—
- Jan–Mar 202690 flights88.9%
- Apr–Jun 202691 flights93.4%
- Jul–Sep 202662 flights91.9%
Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, OO 3833 ranged from 86.5% on Sunday to 97.2% on Thursday. With about 36 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 3833 runs when it is late
OO 3833 often beats the schedule: 130 of 255 completed flights, 51%, arrived 15 minutes or more early. The 21 late arrivals split 9 under half an hour, 3 between 30 and 60 minutes, and 9 an hour or more.
- 15+ min early130 flights51.0%
- Within 15 min104 flights40.8%
- 15–29 min late9 flights3.5%
- 30–59 min late3 flights1.2%
- 1–2 hours late5 flights2.0%
- 2+ hours late4 flights1.6%
Scale runs 0% to 100%.
Share of 255 completed flights by arrival against schedule.
5 of 21 late departures made up the time and arrived on time, 24% of them. Only 5 left on time and still arrived late.
The worst days
Worst days for OO 3833
The latest arrival of the period was on 9 August 2026, 3 hours 8 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 |
|---|---|---|
| 9 August 2026 | 3 hours 8 minutes | Carrier |
| 14 April 2026 | 2 hours 24 minutes | Carrier |
| 7 June 2026 | 2 hours 23 minutes | Carrier |
| 10 August 2026 | 2 hours 21 minutes | Carrier |
| 25 February 2026 | 1 hour 53 minutes | Carrier |
Delay causes
Why OO 3833 runs late
Carrier accounts for 81% of the 1,359 delay minutes carriers reported here, and the remaining four split what is left.
- 81%Carrier
- 16%Extreme weather
- 3%National Airspace System
Extreme weather accounts for 16% 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 2.7 times the usual weather exposure. The split is drawn from 1,359 delay minutes reported on OO 3833.
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 3.5% 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.
OO 3833 is not only a SLC to LWS flight. It also flew LWS to SLC (255 flights, 91.8% 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. 255 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 |
|---|---|---|---|---|---|
| LWS to SLCthin sample | 255 | 91.8% | 130 min | 0.00% | A+ |
What to do with this
Booking OO 3833
For a booking, OO 3833 has one of the better records a US domestic flight can show: 91.8% on time and 0.00% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- 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.