Flight number record

OO 3458

SkyWest Airlines · San Jose to San Diego

Route: SJC → SAN
Departs: 07:00
Flights: 268
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 3458, 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 3458 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 10 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 268 flights, with a median arrival 7 minutes early.

Set against the rest of the country, OO 3458's record is 10 points better than the US average of 77.6%. That gap is worth roughly 98 fewer late arrivals for every thousand flights.

On time

87.4%

Arrivals under 15 minutes late, of 262 completed flights

Avg delay

71 min

Across delayed arrivals only, not all flights

Cancelled

1.87%

National rate is 1.81%

1 hour+ late

1.9%

National rate is 8.1%

These figures cover 268 flights between July 2025 and June 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.

Schedule

When OO 3458 flies

OO 3458 flies SJC to SAN without a single fixed slot. Its most common scheduled departure was 07:00, used on 133 of 268 flights, with 06:15 (78 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:00133 flights49.6%
Departs 06:1578 flights29.1%

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 07:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 3458 runs level with that at 87.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

OO 3458 next to SJC to SAN

Every carrier on SJC to SAN combined arrived on time 72.4% of the time across 4,979 flights, so OO 3458 is 15 points ahead of it. SkyWest flew 1,166 flights on the same city pair under all its flight numbers, including this one, and those ran 77.1% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 8 points.

OO 3458 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 3458thin sample	268	87.4%	71 min	1.87%	A
All SkyWest Airlines on SJC–SAN	1,166	77.1%	49 min	1.20%	B
All carriers on SJC–SAN	4,979	72.4%	46 min	1.02%	C
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 3458 quarter by quarter

OO 3458 did not run the same all year. Its best quarter was Apr–Jun 2026 at 91.7% on time and its weakest Oct–Dec 2025 at 81.4%, a swing of 10 points on roughly 67 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 202592 flights91.2%
Oct–Dec 202590 flights81.4%
Jan–Mar 202650 flights87.8%
Apr–Jun 202636 flights91.7%

Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, OO 3458 ranged from 82.5% on Sunday to 92.1% on Wednesday. With about 38 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why OO 3458 runs late

One category carries most of the weight here. Carrier accounts for 64% of the 2,329 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
64%
Extreme weather
31%
National Airspace System
4%

Extreme weather accounts for 31% 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 5.0 times the usual weather exposure. The split is drawn from 2,329 delay minutes reported on OO 3458.

Cancellations sit at 1.87% against a national 1.81%, which is ordinary. Diversions add another 0.37%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 1.9% land an hour or more behind schedule, against 8.1% 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.

Every one of the 268 flights under OO 3458 in the data flew SJC to SAN. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 268 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 3458

For a booking, read OO 3458 as 87.4% on time with 1.87% cancelled over 268 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

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.

Key figures