Flight number record

OO 3346

SkyWest Airlines · San Diego to Monterey

Route: SAN → MRY
Departs: 12:53
Flights: 290
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s OO 3346, 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 3346 lands a B+, level with the national rate of 77.3%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by about 50 minutes on average. That rests on 290 flights, with a median arrival 7 minutes early.

On time

77.3%

Arrivals under 15 minutes late, of 286 completed flights

Avg delay

50 min

Across delayed arrivals only, not all flights

Cancelled

0.69%

National rate is 1.89%

1 hour+ late

6.3%

National rate is 8.3%

These figures cover 290 flights between September 2025 and August 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.

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Schedule

When OO 3346 flies

OO 3346 flies SAN to MRY without a single fixed slot. Its most common scheduled departure was 12:53, used on 70 of 290 flights, with 12:30 (55 flights) and 12:20 (35 flights) next.

Departs 12:5370 flights24.1%
Departs 12:3055 flights19.0%
Departs 12:2035 flights12.1%

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 12:53 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and OO 3346 runs level with that at 77.3%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

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Against the route

OO 3346 next to SAN to MRY

Every carrier on SAN to MRY combined arrived on time 77.6% of the time across 540 flights, so OO 3346 is about level with it. Across its whole network SkyWest Airlines managed 78.7%, close to this flight's figure.

OO 3346 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 3346thin sample	290	77.3%	50 min	0.69%	B+
All SkyWest Airlines on SAN–MRY	540	77.6%	43 min	4.44%	B−
All carriers on SAN–MRY	540	77.6%	43 min	4.44%	B−
SkyWest Airlines, whole network	855,406	78.7%	88 min	1.79%	B

Across the year

OO 3346 quarter by quarter

OO 3346 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.3% on time and its weakest Jul–Sep 2026 at 64.5%, a swing of 29 points on roughly 58 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 202530 flights93.3%
Oct–Dec 202582 flights69.6%
Jan–Mar 202653 flights84.6%
Apr–Jun 202663 flights85.7%
Jul–Sep 202662 flights64.5%

Scale runs 55% to 100%.

By weekday, OO 3346 ranged from 71.4% on Thursday to 82.5% on Saturday. With about 41 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.

Arrival by arrival

How late OO 3346 runs when it is late

OO 3346 often beats the schedule: 92 of 286 completed flights, 32%, arrived 15 minutes or more early. The 65 late arrivals split 27 under half an hour, 20 between 30 and 60 minutes, and 18 an hour or more.

15+ min early92 flights32.2%
Within 15 min129 flights45.1%
15–29 min late27 flights9.4%
30–59 min late20 flights7.0%
1–2 hours late15 flights5.2%
2+ hours late3 flights1.0%

Scale runs 0% to 100%.

Share of 286 completed flights by arrival against schedule.

18 of 80 late departures made up the time and arrived on time, 23% of them. Only 3 left on time and still arrived late.

The worst days

Worst days for OO 3346

The latest arrival of the period was on 31 October 2025, 4 hours 56 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.

The latest arrivals of OO 3346 in the period
Date	Arrived late by	Largest filed cause
31 October 2025	4 hours 56 minutes	Late-arriving aircraft
18 July 2026	3 hours 51 minutes	Late-arriving aircraft
12 July 2026	2 hours 33 minutes	Carrier
4 December 2025	1 hour 36 minutes	Late-arriving aircraft
23 November 2025	1 hour 34 minutes	Late-arriving aircraft

Delay causes

Why OO 3346 runs late

Late-arriving aircraft accounts for 53% of the 3,224 delay minutes carriers reported here, and the remaining four split what is left.

Late-arriving aircraft
53%
National Airspace System
32%
Carrier
14%
Extreme weather
1%

53% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,224 reported delay minutes here, that single category outweighs weather by 36 to one. The split is drawn from 3,224 delay minutes reported on OO 3346.

Cancellations are rare at 0.69%, below the national 1.89% 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

6.3% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about 50 minutes, which a normal layover absorbs.

The same number turns up on one other city pair in the data, including MRY to SAN (219), but none flew often enough under OO 3346 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SAN to MRY only.

One caution: this is a thin sample. 290 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 3346

For a booking, read OO 3346 as 77.3% on time with 0.69% cancelled over 290 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures