Carrier route record

AAMRY→PHX

American Airlines · Monterey to Phoenix

Flights: 267
Period: July 2025 to June 2026
Share of route: 19%
Carriers: 3

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

American on MRY to PHX lands a B, 4 points better than the national rate of 77.6%. Roughly 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 267 flights, with a median arrival 10 minutes early.

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

On time

81.5%

Arrivals under 15 minutes late, of 260 completed flights

Avg delay

112 min

Across delayed arrivals only, not all flights

Cancelled

1.87%

National rate is 1.81%

Whole route

81.7%

Every carrier on MRY to PHX, 1,375 flights

These figures cover 267 flights between July 2025 and June 2026. Beyond the headline rate, 10.0% 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

American against every carrier on MRY to PHX

American flew 267 of the 1,375 flights on MRY to PHX, about 19% of it. Its 81.5% on time is about level with the route as a whole at 81.7%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Envoy at 84.4% to SkyWest at 81.1%. 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 MRY to PHX
Airline	Flights	On time	Avg delay	Cancelled	Grade
Envoy Airthin sample	221	84.4%	44 min	1.36%	B
American Airlines (this page)thin sample	267	81.5%	112 min	1.87%	B
SkyWest Airlines	887	81.1%	111 min	1.01%	B

Departure window

When American runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 27 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–8am135 flights88.0%
8am–11am39 flights81.6%
11am–2pm4 flights—
2pm–5pm52 flights61.2%
5pm–8pm37 flights86.1%
8pm–5am—

Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 88.0% of the time, against 61.2% for the afternoon window. That is 27 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 135 flights scheduled in it.

Across the year

American on MRY to PHX through the year

Jul–Sep 202552 flights74.0%
Oct–Dec 2025104 flights80.6%
Jan–Mar 202673 flights85.7%
Apr–Jun 202638 flights86.5%

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

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 81.5% on time across 267 flights.

American on MRY to PHX did not run the same all year. Its best quarter was Apr–Jun 2026 at 86.5% on time and its weakest Jul–Sep 2025 at 74.0%, a swing of 13 points on roughly 67 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.

Across the week, Saturday is the strongest day at 89.2% on time and Monday the weakest at 75.0%. 14 points is a smaller lever than departure hour, but it is free.

Delay causes

Why American runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 57% of the 5,385 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.

Late-arriving aircraft
57%
Carrier
37%
National Airspace System
5%
Extreme weather
2%

57% 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 5,385 reported delay minutes here, that single category outweighs weather by 34 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 5,385 reported delay minutes.

The largest share of delay minutes, 37%, 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 1,998 of the 5,385 delay minutes reported here.

Cancellations sit at 1.87% against a national 1.81%, which is ordinary. Diversions add another 0.75%.

Connections and stage length

What a delay here costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

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 75.7% on time across 266 flights, 6 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 6 points of difference.

One caution: this is a thin sample. 267 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 American on MRY to PHX

Put together: treat all of this as provisional. 267 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 81.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 260 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