Flight number record

OO 3402

SkyWest Airlines · Fresno to San Diego

Route: FAT → SAN
Departs: 06:00
Flights: 359
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 3402, 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 3402 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 14 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 359 flights, with a median arrival 7 minutes early.

Set against the rest of the country, OO 3402's record is 14 points better than the US average of 77.6%. That gap is worth roughly 143 fewer late arrivals for every thousand flights.

On time

91.9%

Arrivals under 15 minutes late, of 346 completed flights

Avg delay

55 min

Across delayed arrivals only, not all flights

Cancelled

2.23%

National rate is 1.81%

1 hour+ late

2.0%

National rate is 8.1%

These figures cover 359 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 3402 flies

OO 3402 is scheduled to leave Fresno (FAT) at 06:00 local time and reach San Diego (SAN) at 07:21. That slot held for 294 of the 359 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.

Departs 06:00294 flights81.9%
Departs 06:0265 flights18.1%

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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 3402 runs 3 points better at 91.9%. 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 3402 next to FAT to SAN

Every carrier on FAT to SAN combined arrived on time 76.2% of the time across 1,747 flights, so OO 3402 is 16 points ahead of it. SkyWest flew 1,235 flights on the same city pair under all its flight numbers, including this one, and those ran 76.7% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 13 points.

OO 3402 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 3402thin sample	359	91.9%	55 min	2.23%	A
All SkyWest Airlines on FAT–SAN	1,235	76.7%	53 min	1.62%	B
All carriers on FAT–SAN	1,747	76.2%	53 min	1.26%	B
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 3402 quarter by quarter

Quarter by quarter OO 3402 held fairly steady: 92.0% in Jul–Sep 2025, 90.0% in Oct–Dec 2025, 94.9% in Jan–Mar 2026 and 91.0% in Apr–Jun 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights92.0%
Oct–Dec 202592 flights90.0%
Jan–Mar 202685 flights94.9%
Apr–Jun 202690 flights91.0%

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, OO 3402 did best on Monday at 100.0% on time and worst on Saturday at 84.0%. Each day rests on about 51 flights, so a gap of 16 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 3402 runs late

One category carries most of the weight here. Carrier accounts for 84% of the 1,539 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
84%
Extreme weather
12%
National Airspace System
4%

Extreme weather accounts for 12% 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 1.8 times the usual weather exposure. The split is drawn from 1,539 delay minutes reported on OO 3402.

Cancellations sit at 2.23% against a national 1.81%, which is ordinary. Diversions add another 1.39%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 2.0% 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 359 flights under OO 3402 in the data flew FAT 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. 359 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 3402

For a booking, read OO 3402 as 91.9% on time with 2.23% cancelled over 359 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