Carrier route record
OOPHX→MRY
SkyWest Airlines · Phoenix to Monterey
- Flights
- 889
- Period
- September 2025 to August 2026
- Share of route
- 65%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on PHX to MRY lands a B+, about a point better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 889 flights, with a median arrival 5 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate SkyWest on PHX to MRY from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
78.7%
Arrivals under 15 minutes late, of 878 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
0.56%
National rate is 1.89%
Whole route
80.2%
Every carrier on PHX to MRY, 1,369 flights
These figures cover 889 flights between September 2025 and August 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.
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Carrier by carrier
SkyWest against every carrier on PHX to MRY
SkyWest flew 889 of the 1,369 flights on PHX to MRY, most of the route. Its 78.7% on time is 2 points worse than the route as a whole, which runs 80.2%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Envoy at 88.5% to American at 78.1%. 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 | 231 | 88.5% | 37 min | 1.73% | A |
| SkyWest Airlines (this page) | 889 | 78.7% | 71 min | 0.56% | B+ |
| American Airlinesthin sample | 249 | 78.1% | 70 min | 1.61% | B |
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When SkyWest runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 889 flights.
- 5am–8am102 flights84.3%
- 8am–11am172 flights82.4%
- 11am–2pm194 flights74.6%
- 2pm–5pm154 flights81.7%
- 5pm–8pm90 flights75.6%
- 8pm–5am177 flights75.3%
Scale runs 65% to 90%.
The weak window here is the middle of the day, not the evening: 11am–2pm runs 74.6% on time against 84.3% 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 11am–2pm window is the busiest, with 194 flights scheduled in it.
Across the year
SkyWest on PHX to MRY through the year
June is the worst month at 67.9% on time, 17 points below November, the best at 84.5%. 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. March was the busiest month here, with 122 flights.
Across the week, Tuesday is the strongest day at 83.7% on time and Sunday the weakest at 73.5%, a spread of 10 points.
Arrival by arrival
How late SkyWest on PHX to MRY runs when it is late
SkyWest on PHX to MRY often beats the schedule: 222 of 878 completed flights, 25%, arrived 15 minutes or more early. The 187 late arrivals split 58 under half an hour, 62 between 30 and 60 minutes, and 67 an hour or more.
- 15+ min early222 flights25.3%
- Within 15 min469 flights53.4%
- 15–29 min late58 flights6.6%
- 30–59 min late62 flights7.1%
- 1–2 hours late43 flights4.9%
- 2+ hours late24 flights2.7%
Scale runs 0% to 100%.
Share of 878 completed flights by arrival against schedule.
34 of 184 late departures made up the time and arrived on time, 18% of them. 37 flights left on time and still arrived late.
The worst days
Worst days for SkyWest on PHX to MRY
The latest arrival of the period was on 8 January 2026, 17 hours 23 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 8 January 2026 | 17 hours 23 minutes | Carrier |
| 23 July 2026 | 10 hours 58 minutes | Carrier |
| 17 March 2026 | 9 hours 45 minutes | Carrier |
| 19 June 2026 | 4 hours 21 minutes | Late-arriving aircraft |
| 4 January 2026 | 3 hours 51 minutes | Carrier |
Delay causes
Why SkyWest runs late on this route
Carrier accounts for 58% of the 13,000 delay minutes carriers reported here, and the remaining four split what is left.
- 58%Carrier
- 29%Late-arriving aircraft
- 9%Extreme weather
- 5%National Airspace System
The largest share of delay minutes, 58%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 7,646 of the 13,000 delay minutes reported here. The split is drawn from 13,258 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 84.3% on time here.
Cancellations are rare at 0.56%, below the national 1.89% 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
7.6% of arrivals land an hour or more late, close to the national 8.3%, so 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.
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.
The return leg is a different operation and performs like one: it runs 82.3% on time across 888 flights, 4 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 4 points of difference.
One caution: this is a thin sample. 889 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 MRY
Put together: treat all of this as provisional. 889 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 78.7% 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
- PHX to MRY, every carrier
- SkyWest on MRY to PHX, the return leg
- Envoy Air on PHX to MRY88.5%
- American Airlines on PHX to MRY78.1%
- SkyWest Airlines network-wide record
- Phoenix Sky Harbor International (PHX) delay statistics
- The best time of day to fly, according to 7.05 million flight records
- Worst months to fly in the US, ranked by the data
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.