Flight number record
OO 5415
SkyWest Airlines · Los Angeles to San Diego
- Route
- LAX → SAN
- Departs
- 18:50
- Flights
- 264
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5415, 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 5415 earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 264 flights, with a median arrival 6 minutes early.
Set against the rest of the country, OO 5415's record is 8 points better than the US average of 77.3%. That gap is worth roughly 80 fewer late arrivals for every thousand flights.
Key figures
On time
85.3%
Arrivals under 15 minutes late, of 258 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
2.27%
National rate is 1.89%
1 hour+ late
4.7%
National rate is 8.3%
These figures cover 264 flights between September 2025 and August 2026. The median arrival is 6 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 5415 flies
OO 5415 flies LAX to SAN without a single fixed slot. Its most common scheduled departure was 18:50, used on 148 of 264 flights, with 18:52 (28 flights) next.
- Departs 18:50148 flights56.1%
- Departs 18:5228 flights10.6%
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 18:50 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and OO 5415 runs 17 points better at 85.3%. 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 5415 next to LAX to SAN
Every carrier on LAX to SAN combined arrived on time 83.2% of the time across 2,452 flights, so OO 5415 is 2 points ahead of it. SkyWest flew 2,162 flights on the same city pair under all its flight numbers, including this one, and those ran 83.9% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5415thin sample | 264 | 85.3% | 71 min | 2.27% | A |
| All SkyWest Airlines on LAX–SAN | 2,162 | 83.9% | 62 min | 1.06% | B |
| All carriers on LAX–SAN | 2,452 | 83.2% | 60 min | 0.94% | B+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 5415 quarter by quarter
OO 5415 did not run the same all year. Its best quarter was Jan–Mar 2026 at 92.3% on time and its weakest Jul–Sep 2026 at 71.8%, a swing of 21 points on roughly 66 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 202526 flights—
- Oct–Dec 202584 flights87.5%
- Jan–Mar 202654 flights92.3%
- Apr–Jun 202661 flights85.2%
- Jul–Sep 202639 flights71.8%
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, OO 5415 did best on Tuesday at 92.7% on time and worst on Friday at 74.3%. Each day rests on about 38 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 5415 runs when it is late
The 38 late arrivals split 15 under half an hour, 11 between 30 and 60 minutes, and 12 an hour or more.
- 15+ min early57 flights22.1%
- Within 15 min163 flights63.2%
- 15–29 min late15 flights5.8%
- 30–59 min late11 flights4.3%
- 1–2 hours late11 flights4.3%
- 2+ hours late1 flights0.4%
Scale runs 0% to 100%.
Share of 258 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 26 departures that left 15 minutes late or more, only 2 made it up before arrival. In the other direction, 14 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 5415
The latest arrival of the period was on 17 September 2025, 15 hours 25 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 17 September 2025 | 15 hours 25 minutes | National Airspace System |
| 5 October 2025 | 1 hour 48 minutes | Carrier |
| 16 May 2026 | 1 hour 46 minutes | Carrier |
| 31 May 2026 | 1 hour 37 minutes | Carrier |
| 12 July 2026 | 1 hour 32 minutes | National Airspace System |
Delay causes
Why OO 5415 runs late
National Airspace System accounts for 60% of the 2,703 delay minutes carriers reported here, and the remaining four split what is left.
- 60%National Airspace System
- 22%Carrier
- 17%Late-arriving aircraft
- 2%Extreme weather
60% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,610 minutes out of 2,703, against a national NAS share of 21%. The split is drawn from 2,703 delay minutes reported on OO 5415.
Cancellations sit at 2.27% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.7% 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 same number turns up on three other city pairs in the data, including IAH to LFT (17), SBP to SFO (15) and PHX to LAX (1), but none flew often enough under OO 5415 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAX to SAN only.
One caution: this is a thin sample. 264 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 5415
For a booking, read OO 5415 as 85.3% on time with 2.27% cancelled over 264 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- LAX to SAN, every carrier and departure
- SAN to LAX, the return direction
- SkyWest Airlines 3746 on the same route86.6%
- SkyWest Airlines 4643 on the same route87.5%
- SkyWest Airlines 4087 on the same route79.5%
- SkyWest Airlines 4001 on the same route79.2%
- Los Angeles International (LAX) delay statistics
- San Diego International (SAN) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
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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.