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DelayAtlas

Flight number record

OO 6275

SkyWest Airlines · Fresno to Phoenix

Route
FAT → PHX
Departs
06:00
Flights
363
Period
July 2025 to June 2026
B+GRADE

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 6275, 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 6275 earns a B+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 3.0 hours. That rests on 363 flights, with a median arrival 11 minutes early.

Set against the rest of the country, OO 6275's record is 7 points better than the US average of 77.6%. That gap is worth roughly 67 fewer late arrivals for every thousand flights.

Key figures

On time

84.3%

Arrivals under 15 minutes late, of 362 completed flights

Avg delay

180 min

Across delayed arrivals only, not all flights

Cancelled

0.28%

National rate is 1.81%

1 hour+ late

9.7%

National rate is 8.1%

These figures cover 363 flights between July 2025 and June 2026. Beyond the headline rate, 9.7% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When OO 6275 flies

OO 6275 flies FAT to PHX without a single fixed slot. Its most common scheduled departure was 06:00, used on 135 of 363 flights, with 06:15 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

  • Departs 06:00135 flights37.2%
  • Departs 06:1541 flights11.3%

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 6275 runs 5 points worse at 84.3%. 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 6275 next to FAT to PHX

Every carrier on FAT to PHX combined arrived on time 81.0% of the time across 1,452 flights, so OO 6275 is 3 points ahead of it. SkyWest flew 545 flights on the same city pair under all its flight numbers, including this one, and those ran 82.8% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 5 points.

OO 6275 against its route and carrier
Compared withFlightsOn timeAvg delayCancelledGrade
OO 6275thin sample36384.3%180 min0.28%B+
All SkyWest Airlines on FAT–PHX54582.8%133 min0.55%B+
All carriers on FAT–PHX1,45281.0%109 min0.69%B+
SkyWest Airlines, whole network852,93579.0%88 min1.77%B

Across the year

OO 6275 quarter by quarter

Quarter by quarter OO 6275 held fairly steady: 80.0% in Jul–Sep 2025, 87.0% in Oct–Dec 2025, 85.4% in Jan–Mar 2026 and 84.6% in Apr–Jun 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

  • Jul–Sep 202590 flights80.0%
  • Oct–Dec 202592 flights87.0%
  • Jan–Mar 202690 flights85.4%
  • Apr–Jun 202691 flights84.6%

Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 6275 did best on Sunday at 96.0% on time and worst on Monday at 78.8%. Each day rests on about 52 flights, so a gap of 17 points is worth noticing but could still narrow in another year.

On-time rate by day of the week78.8Mon84.6Tue82.7Wed80.8Thu86.5Fri80.8Sat96.0Sun
Monday: 78.8 percent on time. Tuesday: 84.6 percent on time. Wednesday: 82.7 percent on time. Thursday: 80.8 percent on time. Friday: 86.5 percent on time. Saturday: 80.8 percent on time. Sunday: 96.0 percent on time

Delay causes

Why OO 6275 runs late

One category carries most of the weight here. Carrier accounts for 88% of the 10,000 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
    88%
  • Extreme weather
    7%
  • Late-arriving aircraft
    3%
  • National Airspace System
    2%

The largest share of delay minutes, 88%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 8,976 of the 10,000 delay minutes reported here. The split is drawn from 10,237 delay minutes reported on OO 6275.

Cancellations are rare at 0.28%, 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.7% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

Every one of the 363 flights under OO 6275 in the data flew FAT to PHX. 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. 363 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 6275

For a booking, read OO 6275 as 84.3% on time with 0.28% cancelled over 363 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Related

Where to go next

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.