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DelayAtlas

Flight number record

OO 3304

SkyWest Airlines · Pasco to Los Angeles

Route
PSC → LAX
Departs
07:00
Flights
289
Period
September 2025 to August 2026
AGRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s OO 3304, 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 3304 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 77.3%. When something does go wrong the average delay runs about an hour. That rests on 289 flights, with a median arrival 8 minutes early.

Set against the rest of the country, OO 3304's record is 14 points better than the US average of 77.3%. That gap is worth roughly 136 fewer late arrivals for every thousand flights.

Key figures

On time

90.9%

Arrivals under 15 minutes late, of 285 completed flights

Avg delay

68 min

Across delayed arrivals only, not all flights

Cancelled

1.04%

National rate is 1.89%

1 hour+ late

2.8%

National rate is 8.3%

These figures cover 289 flights between September 2025 and August 2026. The median arrival is 8 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 3304 flies

OO 3304 flies PSC to LAX without a single fixed slot. Its most common scheduled departure was 07:00, used on 201 of 289 flights, with 07:02 (86 flights) next.

  • Departs 07:00201 flights69.6%
  • Departs 07:0286 flights29.8%

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 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 3304 runs level with that at 90.9%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Against the route

OO 3304 next to PSC to LAX

Every carrier on PSC to LAX combined arrived on time 87.6% of the time across 359 flights, so OO 3304 is 3 points ahead of it. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 12 points.

OO 3304 against its route and carrier
Compared withFlightsOn timeAvg delayCancelledGrade
OO 3304thin sample28990.9%68 min1.04%A
All SkyWest Airlines on PSC–LAXthin sample33990.1%68 min0.88%A+
All carriers on PSC–LAXthin sample35987.6%60 min0.84%A+
SkyWest Airlines, whole network855,40678.7%88 min1.79%B

Across the year

OO 3304 quarter by quarter

OO 3304 did not run the same all year. Its best quarter was Jul–Sep 2025 at 96.7% on time and its weakest Apr–Jun 2026 at 85.7%, a swing of 11 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 flights96.7%
  • Oct–Dec 202556 flights94.5%
  • Jan–Mar 202678 flights92.1%
  • Apr–Jun 202663 flights85.7%
  • Jul–Sep 202662 flights88.5%

Scale runs 75% to 100%.

By weekday, OO 3304 did best on Sunday at 97.6% on time and worst on Saturday at 82.5%. Each day rests on about 41 flights, so a gap of 15 points is worth noticing but could still narrow in another year.

On-time rate by day of the week95.2Mon90.5Tue89.2Wed92.5Thu88.1Fri82.5Sat97.6Sun
Monday: 95.2 percent on time. Tuesday: 90.5 percent on time. Wednesday: 89.2 percent on time. Thursday: 92.5 percent on time. Friday: 88.1 percent on time. Saturday: 82.5 percent on time. Sunday: 97.6 percent on time

Arrival by arrival

How late OO 3304 runs when it is late

OO 3304 often beats the schedule: 95 of 285 completed flights, 33%, arrived 15 minutes or more early. The 26 late arrivals split 11 under half an hour, 7 between 30 and 60 minutes, and 8 an hour or more.

  • 15+ min early95 flights33.3%
  • Within 15 min164 flights57.5%
  • 15–29 min late11 flights3.9%
  • 30–59 min late7 flights2.5%
  • 1–2 hours late6 flights2.1%
  • 2+ hours late2 flights0.7%

Scale runs 0% to 100%.

Share of 285 completed flights by arrival against schedule.

Only 19 of 285 completed flights left 15 minutes late or more, too few to say how often the time is made up.

The worst days

Worst days for OO 3304

The latest arrival of the period was on 27 July 2026, 8 hours 49 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.

The latest arrivals of OO 3304 in the period
DateArrived late byLargest filed cause
27 July 20268 hours 49 minutesCarrier
21 June 20262 hours 13 minutesExtreme weather
4 April 20261 hour 57 minutesCarrier
22 August 20261 hour 50 minutesCarrier
3 July 20261 hour 42 minutesCarrier

Delay causes

Why OO 3304 runs late

Carrier accounts for 89% of the 1,764 delay minutes carriers reported here, and the remaining four split what is left.

  • Carrier
    89%
  • Extreme weather
    8%
  • National Airspace System
    3%

The largest share of delay minutes, 89%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,574 of the 1,764 delay minutes reported here. The split is drawn from 1,764 delay minutes reported on OO 3304.

Cancellations sit at 1.04% against a national 1.89%, which is ordinary. Diversions add another 0.35%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 2.8% land an hour or more behind schedule, against 8.3% 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 851 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.

The same number turns up on two other city pairs in the data, including PHX to SFO (20) and SEA to FAT (12), but none flew often enough under OO 3304 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to PSC to LAX only.

One caution: this is a thin sample. 289 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 3304

For a booking, OO 3304 has one of the better records a US domestic flight can show: 90.9% on time and 1.04% cancelled. That is a base rate, not a promise about any single day.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.