Carrier route record

OOPHX→PSP

SkyWest Airlines · Phoenix to Palm Springs

Flights: 721
Period: July 2025 to June 2026
Share of route: 50%
Carriers: 3

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.

SkyWest on PHX to PSP 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 a little over an hour on average. That is a workable record, not a spotless one. That rests on 721 flights, with a median arrival 5 minutes early.

The US average over the same twelve months is 77.6%, so there is little to separate SkyWest on PHX to PSP from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

On time

77.5%

Arrivals under 15 minutes late, of 711 completed flights

Avg delay

75 min

Across delayed arrivals only, not all flights

Cancelled

1.25%

National rate is 1.81%

Whole route

78.3%

Every carrier on PHX to PSP, 1,445 flights

These figures cover 721 flights between July 2025 and June 2026. Beyond the headline rate, 8.3% 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.

Carrier by carrier

SkyWest against every carrier on PHX to PSP

SkyWest flew 721 of the 1,445 flights on PHX to PSP, about 50% of it. Its 77.5% on time is about level with the route as a whole at 78.3%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from Envoy at 86.4% to SkyWest at 77.5%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on PHX to PSP
Airline	Flights	On time	Avg delay	Cancelled	Grade
Envoy Airthin sample	44	86.4%	42 min	0.00%	A+
American Airlines	680	78.5%	71 min	0.74%	B+
SkyWest Airlines (this page)	721	77.5%	75 min	1.25%	B

Flight by flight

SkyWest flight numbers on PHX to PSP

OO 492220:2574.1% · 295 flights

Departure window

When SkyWest runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 14 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am38 flights73.7%
8am–11am90 flights84.9%
11am–2pm6 flights—
2pm–5pm199 flights78.1%
5pm–8pm136 flights83.6%
8pm–5am252 flights71.3%

Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.

Book the morning departure. Flights leaving between 8am–11am arrive on time 84.9% of the time, against 71.3% for the overnight window. That is 14 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8pm–5am window is the busiest, with 252 flights scheduled in it.

Across the year

SkyWest on PHX to PSP through the year

Darker means more delays. Figures are on-time percentages.October best, June worst

June is the worst month at 68.4% on time, 16 points below October, the best at 83.9%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. November was the busiest month here, with 96 flights.

Across the week, Tuesday is the strongest day at 87.4% on time and Sunday the weakest at 67.0%. 20 points is a smaller lever than departure hour, but it is free.

Delay causes

Why SkyWest runs late on this route

One category carries most of the weight here. Carrier accounts for 54% of the 12,000 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
54%
Late-arriving aircraft
40%
National Airspace System
5%
Extreme weather
1%

40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 12,000 reported delay minutes here, that single category outweighs weather by 31 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 11,999 reported delay minutes.

The largest share of delay minutes, 54%, 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 6,505 of the 12,000 delay minutes reported here.

Cancellations sit at 1.25% against a national 1.81%, which is ordinary. Diversions add another 0.14%.

Connections and stage length

What a delay here costs

8.3% 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 a little over an hour, which a normal layover absorbs.

At 261 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 8am–11am window matters as much as it does.

The return leg is a different operation and performs like one: it runs 80.5% on time across 721 flights, 3 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 3 points of difference.

One caution: this is a thin sample. 721 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 SkyWest on PHX to PSP

Put together: treat all of this as provisional. 721 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 77.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 711 completed flights over 12 months sit behind that.

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.

Key figures