Flight profile · SkyWest Airlines
OO3450
San Francisco (SFO) to Santa Ana (SNA) · scheduled 7:00 AM – 8:36 AM
How OO3450 performs
518 operations, 2023-07-01 to 2026-06-30.
OO3450 arrived on time 84.0% of the time, against 80.7% for all SFO → SNA flights — this specific departure is 3.3 percentage points better than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 3.9 points better.
Source: US DOT Bureau of Transportation Statistics · 518 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO3450 | 84.0% | 0.58% | -6 min | 5.1% | 518 |
| SkyWest Airlines on SFO → SNA | 80.1% | 1.30% | -5 min | 5.8% | 9,781 |
| All SFO → SNA flights | 80.7% | 1.12% | -6 min | 5.7% | 13,328 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
Other routes OO3450 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| SJC→SNA San Jose to Santa Ana | 2025-12-21 – 2026-06-26 | 9 | — |
| SNA→SFO Santa Ana to San Francisco | 2023-07-01 – 2026-06-09 | 417 | 75.2% |
| OAK→SNA Oakland to Santa Ana | 2025-12-26 – 2025-12-26 | 1 | — |
| SJC→BOI San Jose to Boise | 2024-03-14 – 2025-05-13 | 275 | 80.0% |
| LAX→STS Los Angeles to Santa Rosa | 2024-12-19 – 2025-01-05 | 2 | — |
| BOI→LAX Boise to Los Angeles | 2024-12-21 – 2025-01-04 | 3 | — |
| SNA→STS Santa Ana to Santa Rosa | 2025-01-01 – 2025-01-01 | 1 | — |
| SAN→STS San Diego to Santa Rosa | 2024-12-24 – 2024-12-31 | 2 | — |
| SEA→PSP Seattle to Palm Springs | 2024-12-30 – 2024-12-30 | 1 | — |
| SAN→SFO San Diego to San Francisco | 2024-12-20 – 2024-12-23 | 2 | — |
| PSP→PDX Palm Springs to Portland | 2024-12-03 – 2024-12-18 | 16 | — |
| SEA→LAX Seattle to Los Angeles | 2024-11-23 – 2024-12-01 | 4 | — |
| LAS→SBP Las Vegas to San Luis Obispo | 2024-11-28 – 2024-11-28 | 1 | — |
| PDX→ONT Portland to Ontario | 2024-05-18 – 2024-06-11 | 11 | — |
| SAN→SJC San Diego to San Jose | 2024-04-16 – 2024-05-15 | 26 | — |
| SJC→SAN San Jose to San Diego | 2024-04-16 – 2024-05-15 | 26 | — |
Because the same number has served different journeys, the statistics above describe only the route OO3450 currently operates. Blending them would produce an average of two different flights.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
26 min late
against a median of 6 min early
Percentiles over 518 operations. Cancelled and diverted flights have no arrival time and are counted separately rather than as very late arrivals.
Why OO3450 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
crew, maintenance, boarding, fuelling — within the carrier’s control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for OO3450 on SFO → SNA. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on SFO → SNA
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| OO5440 | SkyWest Airlines | 79.1% | 7 min early | 888 |
| OO3494 | SkyWest Airlines | 75.9% | 3 min early | 636 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 518 records of OO3450 operating SFO → SNA, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.
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