Flight number record
OO 4695
SkyWest Airlines · San Francisco to Arcata/Eureka
- Route
- SFO → ACV
- Departs
- 20:55
- Flights
- 337
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4695, 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 4695 lands a B, about a point worse than the national rate of 77.6%. About one flight in four arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That is a workable record, not a spotless one. That rests on 337 flights, with a median arrival 4 minutes early.
Key figures
On time
76.7%
Arrivals under 15 minutes late, of 317 completed flights
Avg delay
125 min
Across delayed arrivals only, not all flights
Cancelled
2.67%
National rate is 1.81%
1 hour+ late
11.0%
National rate is 8.1%
These figures cover 337 flights between July 2025 and June 2026. Beyond the headline rate, 11.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When OO 4695 flies
OO 4695 flies SFO to ACV without a single fixed slot. Its most common scheduled departure was 20:55, used on 98 of 337 flights, with 20:59 (94 flights) and 21:20 (45 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 20:5598 flights29.1%
- Departs 20:5994 flights27.9%
- Departs 21:2045 flights13.4%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 20:55 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and OO 4695 runs 6 points better at 76.7%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
OO 4695 next to SFO to ACV
Every carrier on SFO to ACV combined arrived on time 76.4% of the time across 1,285 flights, so OO 4695 is about level with it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 4695thin sample | 337 | 76.7% | 125 min | 2.67% | B |
| All SkyWest Airlines on SFO–ACV | 1,285 | 76.4% | 91 min | 2.72% | B |
| All carriers on SFO–ACV | 1,285 | 76.4% | 91 min | 2.72% | B |
| SkyWest Airlines, whole network | 852,935 | 79.0% | 88 min | 1.77% | B |
Across the year
OO 4695 quarter by quarter
OO 4695 did not run the same all year. Its best quarter was Jan–Mar 2026 at 88.6% on time and its weakest Oct–Dec 2025 at 69.2%, a swing of 19 points on roughly 84 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 202591 flights75.6%
- Oct–Dec 202582 flights69.2%
- Jan–Mar 202690 flights88.6%
- Apr–Jun 202674 flights71.0%
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, OO 4695 did best on Thursday at 84.0% on time and worst on Sunday at 68.1%. Each day rests on about 48 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Delay causes
Why OO 4695 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 9,221 reported delay minutes.
- 35%Extreme weather
- 25%Late-arriving aircraft
- 22%National Airspace System
- 19%Carrier
Extreme weather accounts for 35% 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 5.6 times the usual weather exposure. The split is drawn from 9,221 delay minutes reported on OO 4695.
Cancellations run at 2.67%, against 1.81% nationally. That is about one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 11.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The same number turns up on five other city pairs in the data, including LAS to LAX (8), LAX to MTJ (5) and IAH to MKE (1), but none flew often enough under OO 4695 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SFO to ACV only.
One caution: this is a thin sample. 337 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 4695
For a booking, the cancellation rate is the figure to plan around on OO 4695: 2.67% of its 337 scheduled flights did not operate. A late arrival costs close to two hours, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- SFO to ACV, every carrier and departure
- ACV to SFO, the return direction
- SkyWest Airlines 4708 on the same route74.6%
- SkyWest Airlines 5480 on the same route76.8%
- SkyWest Airlines 4715 on the same route75.9%
- San Francisco International (SFO) 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
- What a cancellation rate actually tells you (and what it hides)
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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.