Flight number record

OO 3330

SkyWest Airlines · San Diego to Boise

Route: SAN → BOI
Departs: 08:25
Flights: 307
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 3330, 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 3330 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 11 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 307 flights, with a median arrival 9 minutes early.

Set against the rest of the country, OO 3330's record is 11 points better than the US average of 77.6%. That gap is worth roughly 113 fewer late arrivals for every thousand flights.

On time

88.9%

Arrivals under 15 minutes late, of 306 completed flights

Avg delay

70 min

Across delayed arrivals only, not all flights

Cancelled

0.33%

National rate is 1.81%

1 hour+ late

3.6%

National rate is 8.1%

These figures cover 307 flights between July 2025 and June 2026. The median arrival is 9 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 3330 flies

OO 3330 flies SAN to BOI without a single fixed slot. Its most common scheduled departure was 08:25, used on 50 of 307 flights, with 09:10 (50 flights) and 08:55 (40 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:2550 flights16.3%
Departs 09:1050 flights16.3%
Departs 08:5540 flights13.0%

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 08:25 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and OO 3330 runs 5 points better at 88.9%. 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 3330 next to SAN to BOI

Every carrier on SAN to BOI combined arrived on time 78.6% of the time across 1,042 flights, so OO 3330 is 10 points ahead of it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 10 points.

OO 3330 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 3330thin sample	307	88.9%	70 min	0.33%	A+
All SkyWest Airlines on SAN–BOI	405	86.9%	66 min	0.25%	A+
All carriers on SAN–BOI	1,042	78.6%	54 min	0.38%	B+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 3330 quarter by quarter

Quarter by quarter OO 3330 held fairly steady: 93.5% in Jul–Sep 2025, 86.7% in Oct–Dec 2025, 85.3% in Jan–Mar 2026 and 89.8% in Apr–Jun 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights93.5%
Oct–Dec 202590 flights86.7%
Jan–Mar 202676 flights85.3%
Apr–Jun 202649 flights89.8%

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, OO 3330 ranged from 84.1% on Sunday to 93.3% on Tuesday. With about 44 flights behind each day, a spread of 9 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why OO 3330 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 2,378 reported delay minutes.

Carrier
40%
Late-arriving aircraft
37%
National Airspace System
18%
Extreme weather
5%

37% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 2,378 reported delay minutes here, that single category outweighs weather by 7 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 2,378 delay minutes reported on OO 3330.

Cancellations are rare at 0.33%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 3.6% 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.

The 749 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

Every one of the 307 flights under OO 3330 in the data flew SAN to BOI. 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. 307 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 3330

For a booking, OO 3330 has one of the better records a US domestic flight can show: 88.9% on time and 0.33% cancelled. That is a base rate, not a promise about any single 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