Flight number record

OO 6406

SkyWest Airlines · Palm Springs to Phoenix

Route: PSP → PHX
Departs: 06:39
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 6406, 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 6406 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 2.4 hours. That rests on 365 flights, with a median arrival 10 minutes early.

Set against the rest of the country, OO 6406's record is 7 points better than the US average of 77.6%. That gap is worth roughly 65 fewer late arrivals for every thousand flights.

On time

84.1%

Arrivals under 15 minutes late, of 365 completed flights

Avg delay

143 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

1 hour+ late

8.2%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 2026. Beyond the headline rate, 8.2% 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 6406 flies

OO 6406 flies PSP to PHX without a single fixed slot. Its most common scheduled departure was 06:39, used on 50 of 365 flights, with 06:38 (44 flights) and 06:46 (43 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:3950 flights13.7%
Departs 06:3844 flights12.1%
Departs 06:4643 flights11.8%

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 06:39 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 6406 runs 5 points worse at 84.1%. 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 6406 next to PSP to PHX

Every carrier on PSP to PHX combined arrived on time 79.6% of the time across 1,445 flights, so OO 6406 is 5 points ahead of it. SkyWest flew 721 flights on the same city pair under all its flight numbers, including this one, and those ran 80.5% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 5 points.

OO 6406 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 6406	365	84.1%	143 min	0.00%	B+
All SkyWest Airlines on PSP–PHX	721	80.5%	118 min	1.11%	B
All carriers on PSP–PHX	1,445	79.6%	108 min	0.97%	B+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 6406 quarter by quarter

OO 6406 did not run the same all year. Its best quarter was Apr–Jun 2026 at 89.0% on time and its weakest Oct–Dec 2025 at 77.2%, a swing of 12 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 202592 flights82.6%
Oct–Dec 202592 flights77.2%
Jan–Mar 202690 flights87.8%
Apr–Jun 202691 flights89.0%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, OO 6406 did best on Friday at 92.3% on time and worst on Saturday at 76.9%. Each day rests on about 52 flights, so a gap of 15 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 6406 runs late

One category carries most of the weight here. Carrier accounts for 79% of the 8,309 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
79%
National Airspace System
18%
Late-arriving aircraft
2%
Extreme weather
1%

The largest share of delay minutes, 79%, 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 6,573 of the 8,309 delay minutes reported here. The split is drawn from 8,309 delay minutes reported on OO 6406.

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

8.2% 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 about 2.4 hours, which a normal layover absorbs.

Every one of the 365 flights under OO 6406 in the data flew PSP 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. 365 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 6406

For a booking, read OO 6406 as 84.1% on time with 0.00% cancelled over 365 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