Carrier route record
OOMRY→PHX
SkyWest Airlines · Monterey to Phoenix
- Flights
- 887
- Period
- July 2025 to June 2026
- Share of route
- 65%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on MRY to PHX lands a B, 4 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That is a workable record, not a spotless one. That rests on 887 flights, with a median arrival 8 minutes early.
The US average over the same twelve months is 77.6%, so there is little to separate SkyWest on MRY to PHX from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
81.1%
Arrivals under 15 minutes late, of 878 completed flights
Avg delay
111 min
Across delayed arrivals only, not all flights
Cancelled
1.01%
National rate is 1.81%
Whole route
81.7%
Every carrier on MRY to PHX, 1,375 flights
These figures cover 887 flights between July 2025 and June 2026. Beyond the headline rate, 8.1% 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 MRY to PHX
SkyWest flew 887 of the 1,375 flights on MRY to PHX, most of the route. Its 81.1% on time is about level with the route as a whole at 81.7%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from Envoy at 84.4% to SkyWest at 81.1%. Two 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 |
|---|---|---|---|---|---|
| Envoy Airthin sample | 221 | 84.4% | 44 min | 1.36% | B |
| American Airlinesthin sample | 267 | 81.5% | 112 min | 1.87% | B |
| SkyWest Airlines (this page) | 887 | 81.1% | 111 min | 1.01% | 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 22 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–8am193 flights93.7%
- 8am–11am199 flights83.3%
- 11am–2pm193 flights71.7%
- 2pm–5pm156 flights77.0%
- 5pm–8pm146 flights78.1%
- 8pm–5am—
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
The weak window here is the middle of the day, not the evening: 11am–2pm runs 71.7% on time against 93.7% for 5am–8am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 8am–11am window is the busiest, with 199 flights scheduled in it.
Across the year
SkyWest on MRY to PHX through the year
Delays peak in October, when the on-time rate falls to 62.5%. December is the strongest month at 86.4%. Moving a flexible trip across that boundary buys 24 points. March was the busiest month here, with 122 flights.
Across the week, Tuesday is the strongest day at 92.0% on time and Sunday the weakest at 72.0%. 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 65% of the 18,000 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.
- 65%Carrier
- 22%Late-arriving aircraft
- 8%Extreme weather
- 5%National Airspace System
- 0%Security
The largest share of delay minutes, 65%, 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 12,000 of the 18,000 delay minutes reported here. The split is drawn from 18,381 reported delay minutes.
Cancellations sit at 1.01% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
8.1% 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.
The 598 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg is a different operation and performs like one: it runs 78.1% on time across 887 flights, 3 points below 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. 887 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 MRY to PHX
Put together: treat all of this as provisional. 887 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 81.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 878 completed flights over 12 months sit behind that.
Related
Where to go next
- MRY to PHX, every carrier
- SkyWest on PHX to MRY, the return leg
- Envoy Air on MRY to PHX84.4%
- American Airlines on MRY to PHX81.5%
- SkyWest Airlines network-wide record
- Phoenix Sky Harbor International (PHX) delay statistics
- The best time of day to fly, according to 7.04 million flight records
- Connecting flights: how much buffer the data says you need
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.