Flight number record
OO 3741
SkyWest Airlines · Las Vegas to San Diego
- Route
- LAS → SAN
- Departs
- 12:57
- Flights
- 322
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 3741, 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 3741 sits in the middle of the pack with a B+. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 322 flights, with a median arrival 3 minutes early.
Key figures
On time
75.2%
Arrivals under 15 minutes late, of 322 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
6.2%
National rate is 8.3%
These figures cover 322 flights between September 2025 and August 2026. The median arrival is 3 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 3741 flies
OO 3741 flies LAS to SAN without a single fixed slot. Its most common scheduled departure was 12:57, used on 56 of 322 flights, with 12:59 (55 flights) and 16:50 (40 flights) next.
- Departs 12:5756 flights17.4%
- Departs 12:5955 flights17.1%
- Departs 16:5040 flights12.4%
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 12:57 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and OO 3741 runs 3 points worse at 75.2%. 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 3741 next to LAS to SAN
Every carrier on LAS to SAN combined arrived on time 62.4% of the time across 5,379 flights, so OO 3741 is 13 points ahead of it. SkyWest flew 1,194 flights on the same city pair under all its flight numbers, including this one, and those ran 71.3% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 3741thin sample | 322 | 75.2% | 66 min | 0.00% | B+ |
| All SkyWest Airlines on LAS–SAN | 1,194 | 71.3% | 60 min | 1.17% | C |
| All carriers on LAS–SAN | 5,379 | 62.4% | 55 min | 0.99% | D+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 3741 quarter by quarter
OO 3741 did not run the same all year. Its best quarter was Oct–Dec 2025 at 81.4% on time and its weakest Jul–Sep 2026 at 61.3%, a swing of 20 points on roughly 64 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 flights70.0%
- Oct–Dec 202586 flights81.4%
- Jan–Mar 202665 flights76.9%
- Apr–Jun 202679 flights79.7%
- Jul–Sep 202662 flights61.3%
Scale runs 55% to 85%.
By weekday, OO 3741 did best on Tuesday at 85.1% on time and worst on Friday at 56.5%. Each day rests on about 46 flights, so a gap of 29 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 3741 runs when it is late
The 80 late arrivals split 24 under half an hour, 36 between 30 and 60 minutes, and 20 an hour or more.
- 15+ min early70 flights21.7%
- Within 15 min172 flights53.4%
- 15–29 min late24 flights7.5%
- 30–59 min late36 flights11.2%
- 1–2 hours late9 flights2.8%
- 2+ hours late11 flights3.4%
Scale runs 0% to 100%.
Share of 322 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 42 departures that left 15 minutes late or more, only 2 made it up before arrival. In the other direction, 40 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at SAN.
The worst days
Worst days for OO 3741
The latest arrival of the period was on 18 May 2026, 8 hours 16 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 |
|---|---|---|
| 18 May 2026 | 8 hours 16 minutes | Carrier |
| 12 June 2026 | 6 hours 14 minutes | Carrier |
| 15 January 2026 | 4 hours 10 minutes | National Airspace System |
| 10 June 2026 | 3 hours 42 minutes | Carrier |
| 26 September 2025 | 3 hours 35 minutes | Extreme weather |
Delay causes
Why OO 3741 runs late
Carrier accounts for 65% of the 5,243 delay minutes carriers reported here, and the remaining four split what is left.
- 65%Carrier
- 27%National Airspace System
- 8%Extreme weather
The largest share of delay minutes, 65%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,410 of the 5,243 delay minutes reported here. The split is drawn from 5,243 delay minutes reported on OO 3741.
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
6.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The same number turns up on one other city pair in the data, including SAN to LAS (155), but none flew often enough under OO 3741 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAS to SAN only.
One caution: this is a thin sample. 322 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 3741
For a booking, read OO 3741 as 75.2% on time with 0.00% cancelled over 322 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- LAS to SAN, every carrier and departure
- SAN to LAS, the return direction
- Harry Reid International (LAS) delay statistics
- San Diego International (SAN) 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.