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DelayAtlas

Carrier route record

AAPHX→SJC

American Airlines · Phoenix to San Jose

Flights
683
Period
September 2025 to August 2026
Share of route
23%
Carriers
4
B+GRADE

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

American on PHX to SJC lands a B+, level with the national rate of 77.3%. About one flight in four arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 683 flights, with a median arrival 4 minutes early.

The US average over the same twelve months is 77.3%, so there is little to separate American on PHX to SJC from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

Key figures

On time

76.6%

Arrivals under 15 minutes late, of 676 completed flights

Avg delay

74 min

Across delayed arrivals only, not all flights

Cancelled

0.88%

National rate is 1.89%

Whole route

78.2%

Every carrier on PHX to SJC, 2,979 flights

These figures cover 683 flights between September 2025 and August 2026. Beyond the headline rate, 8.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Carrier by carrier

American against every carrier on PHX to SJC

American flew 683 of the 2,979 flights on PHX to SJC, about 23% of it. Its 76.6% on time is 2 points worse than the route as a whole, which runs 78.2%. Ranked by on-time rate it is last of four carriers on the route, where the range runs from Envoy at 87.3% to American at 76.6%. 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.

On-time performance by carrier on PHX to SJC
AirlineFlightsOn timeAvg delayCancelledGrade
Envoy Airthin sample19087.3%45 min0.53%A+
SkyWest Airlinesthin sample26985.0%74 min0.74%A+
Southwest Airlines1,83776.9%48 min0.38%B+
American Airlines (this page)68376.6%74 min0.88%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 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 14 points, against half a point between the best and worst carrier.

  • 5am–8am2 flights—
  • 8am–11am181 flights79.6%
  • 11am–2pm51 flights85.4%
  • 2pm–5pm143 flights79.6%
  • 5pm–8pm61 flights75.0%
  • 8pm–5am245 flights71.6%

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

The best window here is not the first bank but the 11am–2pm slot at 85.4% on time, ahead of 8pm–5am at 71.6%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 8pm–5am window is the busiest, with 245 flights scheduled in it.

Across the year

American on PHX to SJC through the year

On-time rate by calendar month83J92F87M87A80M70J63J77A89S74O—N67D
Darker means more delays. Figures are on-time percentages.February best, July worst

July is the worst month at 62.7% on time, 29 points below February, the best at 92.0%. 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. July was the busiest month here, with 84 flights.

Across the week, Wednesday is the strongest day at 85.1% on time and Friday the weakest at 71.0%, a spread of 14 points.

On-time rate by day of the week73.0Mon82.4Tue85.1Wed77.4Thu71.0Fri74.1Sat74.5Sun
Monday: 73.0 percent on time. Tuesday: 82.4 percent on time. Wednesday: 85.1 percent on time. Thursday: 77.4 percent on time. Friday: 71.0 percent on time. Saturday: 74.1 percent on time. Sunday: 74.5 percent on time

Arrival by arrival

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

The 158 late arrivals split 49 under half an hour, 50 between 30 and 60 minutes, and 59 an hour or more.

  • 15+ min early120 flights17.8%
  • Within 15 min398 flights58.9%
  • 15–29 min late49 flights7.2%
  • 30–59 min late50 flights7.4%
  • 1–2 hours late41 flights6.1%
  • 2+ hours late18 flights2.7%

Scale runs 0% to 100%.

Share of 676 completed flights by arrival against schedule.

27 of 170 late departures made up the time and arrived on time, 16% of them. 15 flights left on time and still arrived late.

The worst days

Worst days for American on PHX to SJC

The latest arrival of the period was on 12 June 2026, 14 hours 44 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across June, March, August and July, with no single month standing out.

The latest arrivals of American on PHX to SJC in the period
DateArrived late byLargest filed cause
12 June 202614 hours 44 minutesLate-arriving aircraft
22 March 202610 hours 19 minutesCarrier
23 August 20268 hours 34 minutesExtreme weather
20 June 20268 hours 12 minutesCarrier
24 July 20266 hours 8 minutesLate-arriving aircraft

Delay causes

Why American runs late on this route

Late-arriving aircraft accounts for 51% of the 12,000 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    51%
  • Carrier
    40%
  • National Airspace System
    5%
  • Extreme weather
    4%

51% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 12,000 reported delay minutes here, that single category outweighs weather by 11 to one. The split is drawn from 11,613 reported delay minutes.

The largest share of delay minutes, 40%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 4,679 of the 12,000 delay minutes reported here.

Cancellations are rare at 0.88%, 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

8.7% 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 621 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 86.1% on time across 685 flights, 10 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 10 points of difference.

One caution: this is a thin sample. 683 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 PHX to SJC

Put together: treat all of this as provisional. 683 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 76.6% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 676 completed flights over 12 months sit behind that.

Related

Where to go next

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.