Carrier route record
OOYUM→PHX
SkyWest Airlines · Yuma to Phoenix
- Flights
- 1,010
- Period
- July 2025 to June 2026
- Share of route
- 76%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on YUM to PHX earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 1,010 flights, with a median arrival 9 minutes early.
Set against the rest of the country, SkyWest's YUM to PHX record is 8 points better than the US average of 77.6%. That gap is worth roughly 80 fewer late arrivals for every thousand flights.
Key figures
On time
85.6%
Arrivals under 15 minutes late, of 1,006 completed flights
Avg delay
106 min
Across delayed arrivals only, not all flights
Cancelled
0.40%
National rate is 1.81%
Whole route
85.0%
Every carrier on YUM to PHX, 1,328 flights
These figures cover 1,010 flights between July 2025 and June 2026. The median arrival is 9 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.
Carrier by carrier
SkyWest against every carrier on YUM to PHX
SkyWest flew 1,010 of the 1,328 flights on YUM to PHX, most of the route. Its 85.6% on time is about level with the route as a whole at 85.0%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from SkyWest at 85.6% to Envoy at 83.0%. 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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines (this page) | 1,010 | 85.6% | 106 min | 0.40% | A+ |
| Envoy Airthin sample | 318 | 83.0% | 69 min | 3.77% | B− |
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 18 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–8am256 flights94.9%
- 8am–11am148 flights89.9%
- 11am–2pm311 flights83.5%
- 2pm–5pm53 flights82.7%
- 5pm–8pm236 flights76.6%
- 8pm–5am6 flights—
Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 94.9% of the time, against 76.6% for the evening window. That is 18 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 11am–2pm window is the busiest, with 311 flights scheduled in it.
Across the year
SkyWest on YUM to PHX through the year
February is the weak month at 76.5% on time, against 88.8% in April. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. March was the busiest month here, with 122 flights.
Across the week, Wednesday is the strongest day at 90.8% on time and Thursday the weakest at 81.1%. 10 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 61% of the 15,000 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.
- 61%Carrier
- 26%Late-arriving aircraft
- 7%National Airspace System
- 6%Extreme weather
The largest share of delay minutes, 61%, 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 9,393 of the 15,000 delay minutes reported here. The split is drawn from 15,343 reported delay minutes.
Cancellations are rare at 0.40%, 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 stage length
What a delay here costs
6.7% 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 close to two hours, which a normal layover absorbs.
At 160 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 5am–8am window matters as much as it does.
The return leg runs 84.0% on time across 1,010 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 1,010 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 YUM to PHX
Put together: treat all of this as provisional. 1,010 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 85.6% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 1,006 completed flights over 12 months sit behind that.
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.