Flight number record

OO 6328

SkyWest Airlines · Durango to Phoenix

Route: DRO → PHX
Departs: 06:00
Flights: 362
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 6328, 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 6328 lands a B+, level with the national rate of 77.6%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 362 flights, with a median arrival 5 minutes early.

On time

77.3%

Arrivals under 15 minutes late, of 362 completed flights

Avg delay

82 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

1 hour+ late

7.5%

National rate is 8.1%

These figures cover 362 flights between July 2025 and June 2026. The median arrival is 5 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 6328 flies

OO 6328 flies DRO to PHX without a single fixed slot. Its most common scheduled departure was 06:00, used on 96 of 362 flights, with 08:25 (77 flights) and 08:40 (44 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:0096 flights26.5%
Departs 08:2577 flights21.3%
Departs 08:4044 flights12.2%

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 6328 runs 12 points worse at 77.3%. 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 6328 next to DRO to PHX

Every carrier on DRO to PHX combined arrived on time 78.7% of the time across 994 flights, so OO 6328 is about level with it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 2 points.

OO 6328 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 6328thin sample	362	77.3%	82 min	0.00%	B+
All SkyWest Airlines on DRO–PHX	994	78.7%	77 min	0.40%	B+
All carriers on DRO–PHX	994	78.7%	77 min	0.40%	B+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 6328 quarter by quarter

OO 6328 did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.0% on time and its weakest Jan–Mar 2026 at 72.2%, a swing of 18 points on roughly 91 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 202590 flights90.0%
Oct–Dec 202592 flights73.9%
Jan–Mar 202690 flights72.2%
Apr–Jun 202690 flights73.3%

Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, OO 6328 ranged from 74.5% on Sunday to 82.7% on Wednesday. With about 52 flights behind each day, a spread of 8 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why OO 6328 runs late

One category carries most of the weight here. Carrier accounts for 89% of the 6,743 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
89%
National Airspace System
8%
Late-arriving aircraft
3%
Extreme weather
0%

The largest share of delay minutes, 89%, 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 5,973 of the 6,743 delay minutes reported here. The split is drawn from 6,743 delay minutes reported on OO 6328.

Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

7.5% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.

Every one of the 362 flights under OO 6328 in the data flew DRO 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. 362 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 6328

For a booking, read OO 6328 as 77.3% on time with 0.00% cancelled over 362 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