Flight number record

AA 2453

American Airlines · Los Angeles to Boston

Route: LAX → BOS
Departs: 22:00
Flights: 354
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s AA 2453, check with American Airlines.

AA 2453 lands a B+, 4 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 a little over an hour on average. That is a workable record, not a spotless one. That rests on 354 flights, with a median arrival 8 minutes early.

On time

81.2%

Arrivals under 15 minutes late, of 351 completed flights

Avg delay

74 min

Across delayed arrivals only, not all flights

Cancelled

0.85%

National rate is 1.81%

1 hour+ late

6.6%

National rate is 8.1%

These figures cover 354 flights between July 2025 and June 2026. The median arrival is 8 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 2453 flies

AA 2453 flies LAX to BOS without a single fixed slot. Its most common scheduled departure was 22:00, used on 80 of 354 flights, with 23:30 (43 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 22:0080 flights22.6%
Departs 23:3043 flights12.1%

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 22:00 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and AA 2453 runs 11 points better at 81.2%. 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 2453 next to LAX to BOS

Every carrier on LAX to BOS combined arrived on time 78.4% of the time across 4,718 flights, so AA 2453 is 3 points ahead of it. American flew 1,146 flights on the same city pair under all its flight numbers, including this one, and those ran 76.5% on time. Across its whole network American Airlines managed 74.4%, which this flight beats by 7 points.

AA 2453 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
AA 2453thin sample	354	81.2%	74 min	0.85%	B+
All American Airlines on LAX–BOS	1,146	76.5%	91 min	1.31%	B
All carriers on LAX–BOS	4,718	78.4%	81 min	1.42%	B
American Airlines, whole network	986,297	74.4%	85 min	2.29%	C

Across the year

AA 2453 quarter by quarter

AA 2453 did not run the same all year. Its best quarter was Apr–Jun 2026 at 92.2% on time and its weakest Oct–Dec 2025 at 72.3%, a swing of 20 points on roughly 89 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 202591 flights86.8%
Oct–Dec 202583 flights72.3%
Jan–Mar 202690 flights72.4%
Apr–Jun 202690 flights92.2%

Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, AA 2453 did best on Tuesday at 90.6% on time and worst on Wednesday at 69.4%. Each day rests on about 51 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Delay causes

Why AA 2453 runs late

One category carries most of the weight here. Carrier accounts for 63% of the 4,886 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
63%
Late-arriving aircraft
28%
National Airspace System
9%

The largest share of delay minutes, 63%, 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 3,064 of the 4,886 delay minutes reported here. The split is drawn from 4,886 delay minutes reported on AA 2453.

Cancellations are rare at 0.85%, 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

6.6% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says 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.

At 2,611 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 354 flights under AA 2453 in the data flew LAX to BOS. 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. 354 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 2453

For a booking, read AA 2453 as 81.2% on time with 0.85% cancelled over 354 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