Flight number record

AA 2637

American Airlines · Phoenix to Santa Ana

Route: PHX → SNA
Departs: 20:30
Flights: 274
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s AA 2637, check with American Airlines.

AA 2637 lands a B+, 3 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 an hour and a half on average. That is a workable record, not a spotless one. That rests on 274 flights, with a median arrival 3 minutes early.

On time

80.5%

Arrivals under 15 minutes late, of 272 completed flights

Avg delay

85 min

Across delayed arrivals only, not all flights

Cancelled

0.36%

National rate is 1.81%

1 hour+ late

2.9%

National rate is 8.1%

These figures cover 274 flights between July 2025 and June 2026. The median arrival is 3 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.

Schedule

When AA 2637 flies

AA 2637 flies PHX to SNA without a single fixed slot. Its most common scheduled departure was 20:30, used on 45 of 274 flights, with 21:02 (40 flights) and 21:25 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 20:3045 flights16.4%
Departs 21:0240 flights14.6%
Departs 21:2537 flights13.5%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 20:30 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and AA 2637 runs 10 points better at 80.5%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

AA 2637 next to PHX to SNA

Every carrier on PHX to SNA combined arrived on time 79.6% of the time across 4,609 flights, so AA 2637 is about level with it. American flew 1,894 flights on the same city pair under all its flight numbers, including this one, and those ran 78.9% on time. Across its whole network American Airlines managed 74.4%, which this flight beats by 6 points.

AA 2637 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AA 2637thin sample	274	80.5%	85 min	0.36%	B+
All American Airlines on PHX–SNA	1,894	78.9%	66 min	0.37%	B+
All carriers on PHX–SNA	4,609	79.6%	55 min	0.43%	B+
American Airlines, whole network	986,297	74.4%	85 min	2.29%	C

Across the year

AA 2637 quarter by quarter

AA 2637 did not run the same all year. Its best quarter was Jan–Mar 2026 at 88.5% on time and its weakest Jul–Sep 2025 at 72.4%, a swing of 16 points on roughly 69 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.

Jul–Sep 202576 flights72.4%
Oct–Dec 202553 flights79.2%
Jan–Mar 202662 flights88.5%
Apr–Jun 202683 flights82.9%

Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, AA 2637 did best on Monday at 84.8% on time and worst on Sunday at 64.7%. Each day rests on about 39 flights, so a gap of 20 points is worth noticing but could still narrow in another year.

Delay causes

Why AA 2637 runs late

One category carries most of the weight here. Carrier accounts for 78% of the 4,477 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.

Carrier
78%
Late-arriving aircraft
16%
National Airspace System
5%
Extreme weather
1%

The largest share of delay minutes, 78%, 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 3,494 of the 4,477 delay minutes reported here. The split is drawn from 4,477 delay minutes reported on AA 2637.

Cancellations are rare at 0.36%, below the national 1.81% 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 routes

What a delay on this flight costs

Badly late arrivals are rare here: only 2.9% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

Every one of the 274 flights under AA 2637 in the data flew PHX to SNA. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 274 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 AA 2637

For a booking, read AA 2637 as 80.5% on time with 0.36% cancelled over 274 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

A flight number here means American Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

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