Carrier route record

AAMRY→PHX

American Airlines · Monterey to Phoenix

Flights: 251
Period: September 2025 to August 2026
Share of route: 18%
Carriers: 3

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

American on MRY to PHX lands a B, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about 2.6 hours on average. That rests on 251 flights, with a median arrival 10 minutes early.

Set against the rest of the country, American's MRY to PHX record is 5 points better than the US average of 77.3%. That gap is worth roughly 54 fewer late arrivals for every thousand flights.

On time

82.7%

Arrivals under 15 minutes late, of 243 completed flights

Avg delay

156 min

Across delayed arrivals only, not all flights

Cancelled

1.99%

National rate is 1.89%

Whole route

82.7%

Every carrier on MRY to PHX, 1,370 flights

These figures cover 251 flights between September 2025 and August 2026. Beyond the headline rate, 8.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

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Carrier by carrier

American against every carrier on MRY to PHX

American flew 251 of the 1,370 flights on MRY to PHX, about 18% of it. Its 82.7% on time is about level with the route as a whole at 82.7%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Envoy at 84.6% to SkyWest at 82.3%. 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	231	84.6%	42 min	1.30%	B
American Airlines (this page)thin sample	251	82.7%	156 min	1.99%	B
SkyWest Airlines	888	82.3%	113 min	0.90%	B+

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Departure window

When American 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 251 flights.

5am–8am111 flights88.1%
8am–11am38 flights81.1%
11am–2pm4 flights—
2pm–5pm29 flights—
5pm–8pm69 flights81.8%
8pm–5am—

Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.

The early departures do better, though not dramatically: 88.1% on time for the 5am–8am window against 81.1% for 8am–11am. Worth taking if the schedule allows, not worth an extra connection. The 5am–8am window is the busiest, with 111 flights scheduled in it.

Across the year

American on MRY to PHX through the year

Jul–Sep 20254 flights—
Oct–Dec 2025104 flights80.6%
Jan–Mar 202673 flights85.7%
Apr–Jun 202638 flights86.5%
Jul–Sep 202632 flights76.7%

Scale runs 70% 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 82.7% on time across 251 flights.

Quarter by quarter American on MRY to PHX held fairly steady: 80.6% in Oct–Dec 2025, 85.7% in Jan–Mar 2026, 86.5% in Apr–Jun 2026 and 76.7% in Jul–Sep 2026. A spread of 10 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Across the week, Thursday is the strongest day at 91.4% on time and Monday the weakest at 71.4%, a spread of 20 points.

Arrival by arrival

How late American on MRY to PHX runs when it is late

American on MRY to PHX often beats the schedule: 76 of 243 completed flights, 31%, arrived 15 minutes or more early. The 42 late arrivals split 13 under half an hour, 8 between 30 and 60 minutes, and 21 an hour or more.

15+ min early76 flights31.3%
Within 15 min125 flights51.4%
15–29 min late13 flights5.3%
30–59 min late8 flights3.3%
1–2 hours late7 flights2.9%
2+ hours late14 flights5.8%

Scale runs 0% to 100%.

Share of 243 completed flights by arrival against schedule.

Time lost at the gate mostly stays lost. Of 41 departures that left 15 minutes late or more, only 4 made it up before arrival. 5 flights left on time and still arrived late.

The worst days

Worst days for American on MRY to PHX

The latest arrival of the period was on 1 August 2026, 21 hours 47 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.

The latest arrivals of American on MRY to PHX in the period
Date	Arrived late by	Largest filed cause
1 August 2026	21 hours 47 minutes	Carrier
13 July 2026	14 hours 8 minutes	Extreme weather
7 January 2026	7 hours 47 minutes	Carrier
11 November 2025	7 hours 46 minutes	Late-arriving aircraft
7 October 2025	6 hours 28 minutes	Carrier

Delay causes

Why American runs late on this route

Carrier accounts for 45% of the 6,564 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
45%
Late-arriving aircraft
37%
Extreme weather
14%
National Airspace System
3%

Extreme weather accounts for 14% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.4 times the usual weather exposure. The split is drawn from 6,564 reported delay minutes.

37% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,564 reported delay minutes here, that single category outweighs weather by 3 to one.

Cancellations sit at 1.99% against a national 1.89%, which is ordinary. Diversions add another 1.20%.

Connections and stage length

What a delay here costs

8.6% 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 about 2.6 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.

The return leg is a different operation and performs like one: it runs 78.1% on time across 249 flights, 5 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 5 points of difference.

One caution: this is a thin sample. 251 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. 251 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 82.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 243 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures