Flight number record

AA 664

American Airlines · Kailua-Kona to Phoenix

Route: KOA → PHX
Departs: 21:45
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s AA 664, check with American Airlines.

AA 664 earns an A. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 17 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 4.6 hours. That rests on 365 flights, with a median arrival 14 minutes early.

Set against the rest of the country, AA 664's record is 17 points better than the US average of 77.6%. That gap is worth roughly 165 fewer late arrivals for every thousand flights.

On time

94.1%

Arrivals under 15 minutes late, of 358 completed flights

Avg delay

279 min

Across delayed arrivals only, not all flights

Cancelled

1.64%

National rate is 1.81%

1 hour+ late

1.7%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 2026. The median arrival is 14 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 664 flies

AA 664 flies KOA to PHX without a single fixed slot. Its most common scheduled departure was 21:45, used on 109 of 365 flights, with 21:55 (72 flights) and 21:40 (58 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 21:45109 flights29.9%
Departs 21:5572 flights19.7%
Departs 21:4058 flights15.9%

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 21:45 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and AA 664 runs 24 points better at 94.1%. 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 664 next to KOA to PHX

Every carrier on KOA to PHX combined arrived on time 93.9% of the time across 384 flights, so AA 664 is about level with it. Across its whole network American Airlines managed 74.4%, which this flight beats by 20 points.

AA 664 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AA 664	365	94.1%	279 min	1.64%	A
All American Airlines on KOA–PHX	384	93.9%	256 min	1.56%	A
All carriers on KOA–PHX	384	93.9%	256 min	1.56%	A
American Airlines, whole network	986,297	74.4%	85 min	2.29%	C

Across the year

AA 664 quarter by quarter

Quarter by quarter AA 664 held fairly steady: 96.6% in Jul–Sep 2025, 91.3% in Oct–Dec 2025, 90.8% in Jan–Mar 2026 and 97.8% in Apr–Jun 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights96.6%
Oct–Dec 202592 flights91.3%
Jan–Mar 202690 flights90.8%
Apr–Jun 202691 flights97.8%

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, AA 664 ranged from 90.2% on Friday to 96.1% on Monday. With about 52 flights behind each day, a spread of 6 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why AA 664 runs late

One category carries most of the weight here. Carrier accounts for 57% of the 5,855 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
57%
Extreme weather
33%
National Airspace System
6%
Late-arriving aircraft
4%

Extreme weather accounts for 33% 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 quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 5.3 times the usual weather exposure. The split is drawn from 5,855 delay minutes reported on AA 664.

Cancellations sit at 1.64% against a national 1.81%, which is ordinary. Diversions add another 0.27%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 1.7% 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.

At 2,860 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

Every one of the 365 flights under AA 664 in the data flew KOA to PHX. 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. 365 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 664

For a booking, read AA 664 as 94.1% on time with 1.64% cancelled over 365 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