Flight number record
OO 3728
SkyWest Airlines · Salt Lake City to Pasco
- Route
- SLC → PSC
- Departs
- 16:20
- Flights
- 338
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 3728, 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 3728 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 338 flights, with a median arrival 7 minutes early.
Set against the rest of the country, OO 3728's record is 11 points better than the US average of 77.3%. That gap is worth roughly 106 fewer late arrivals for every thousand flights.
Key figures
On time
87.9%
Arrivals under 15 minutes late, of 338 completed flights
Avg delay
61 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
3.3%
National rate is 8.3%
These figures cover 338 flights between September 2025 and August 2026. The median arrival is 7 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When OO 3728 flies
OO 3728 flies SLC to PSC without a single fixed slot. Its most common scheduled departure was 16:20, used on 56 of 338 flights, with 16:10 (55 flights) next.
- Departs 16:2056 flights16.6%
- Departs 16:1055 flights16.3%
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 16:20 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and OO 3728 runs 16 points better at 87.9%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
OO 3728 next to SLC to PSC
Every carrier on SLC to PSC combined arrived on time 89.3% of the time across 1,177 flights, so OO 3728 is about level with it. SkyWest flew 829 flights on the same city pair under all its flight numbers, including this one, and those ran 90.6% 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 3728thin sample | 338 | 87.9% | 61 min | 0.00% | A+ |
| All SkyWest Airlines on SLC–PSC | 829 | 90.6% | 60 min | 0.12% | A+ |
| All carriers on SLC–PSC | 1,177 | 89.3% | 68 min | 0.17% | A+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 3728 quarter by quarter
Quarter by quarter OO 3728 held fairly steady: 88.4% in Oct–Dec 2025, 84.4% in Jan–Mar 2026, 86.8% in Apr–Jun 2026 and 90.3% in Jul–Sep 2026. A spread of 6 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202522 flights—
- Oct–Dec 202586 flights88.4%
- Jan–Mar 202677 flights84.4%
- Apr–Jun 202691 flights86.8%
- Jul–Sep 202662 flights90.3%
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, OO 3728 did best on Tuesday at 96.0% on time and worst on Wednesday at 81.2%. Each day rests on about 48 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 3728 runs when it is late
The 41 late arrivals split 16 under half an hour, 14 between 30 and 60 minutes, and 11 an hour or more.
- 15+ min early84 flights24.9%
- Within 15 min213 flights63.0%
- 15–29 min late16 flights4.7%
- 30–59 min late14 flights4.1%
- 1–2 hours late5 flights1.5%
- 2+ hours late6 flights1.8%
Scale runs 0% to 100%.
Share of 338 completed flights by arrival against schedule.
8 of 45 late departures made up the time and arrived on time, 18% of them. Only 4 left on time and still arrived late.
The worst days
Worst days for OO 3728
The latest arrival of the period was on 17 December 2025, 4 hours 43 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 17 December 2025 | 4 hours 43 minutes | Carrier |
| 21 August 2026 | 3 hours 38 minutes | Extreme weather |
| 14 January 2026 | 2 hours 55 minutes | Extreme weather |
| 2 May 2026 | 2 hours 42 minutes | Carrier |
| 7 December 2025 | 2 hours 22 minutes | Carrier |
Delay causes
Why OO 3728 runs late
Carrier accounts for 73% of the 2,480 delay minutes carriers reported here, and the remaining four split what is left.
- 73%Carrier
- 24%Extreme weather
- 3%National Airspace System
Extreme weather accounts for 24% 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 4.0 times the usual weather exposure. The split is drawn from 2,480 delay minutes reported on OO 3728.
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 3.3% 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 521 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 one other city pair in the data, including PSC to SLC (98), but none flew often enough under OO 3728 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SLC to PSC only.
One caution: this is a thin sample. 338 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 3728
For a booking, OO 3728 has one of the better records a US domestic flight can show: 87.9% 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 PSC, every carrier and departure
- PSC to SLC, the return direction
- 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.