Carrier route record

AAPWM→PHL

American Airlines · Portland to Philadelphia

Flights: 530
Period: July 2025 to June 2026
Share of route: 73%
Carriers: 3

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

American on PWM to PHL lands a B, level with the national rate of 77.6%. Roughly one flight in four 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 530 flights, with a median arrival 6 minutes early.

The US average over the same twelve months is 77.6%, so there is little to separate American on PWM to PHL from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

On time

77.1%

Arrivals under 15 minutes late, of 520 completed flights

Avg delay

79 min

Across delayed arrivals only, not all flights

Cancelled

1.70%

National rate is 1.81%

Whole route

77.5%

Every carrier on PWM to PHL, 731 flights

These figures cover 530 flights between July 2025 and June 2026. The median arrival is 6 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.

Carrier by carrier

American against every carrier on PWM to PHL

American flew 530 of the 731 flights on PWM to PHL, most of the route. Its 77.1% on time is about level with the route as a whole at 77.5%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from Republic at 100.0% to American at 77.1%. 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 PWM to PHL
Airline	Flights	On time	Avg delay	Cancelled	Grade
Republic Airwaysthin sample	1	100.0%	—	0.00%	A+
PSA Airlinesthin sample	200	78.6%	164 min	8.50%	B−
American Airlines (this page)	530	77.1%	79 min	1.70%	B

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 34 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am233 flights87.7%
8am–11am99 flights86.7%
11am–2pm55 flights76.4%
2pm–5pm143 flights53.6%
5pm–8pm—
8pm–5am—

Scale runs 45% to 95%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 87.7% of the time, against 53.6% for the afternoon window. That is 34 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 233 flights scheduled in it.

Across the year

American on PWM to PHL through the year

Jul–Sep 2025310 flights77.3%
Oct–Dec 202595 flights71.0%
Apr–Jun 2026125 flights81.3%

Scale runs 65% to 85%. 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 77.1% on time across 530 flights.

American on PWM to PHL did not run the same all year. Its best quarter was Apr–Jun 2026 at 81.3% on time and its weakest Oct–Dec 2025 at 71.0%, a swing of 10 points on roughly 177 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.

Across the week, Saturday is the strongest day at 86.4% on time and Sunday the weakest at 69.6%. 17 points is a smaller lever than departure hour, but it is free.

Delay causes

Why American runs late on this route

One category carries most of the weight here. Carrier accounts for 45% of the 9,356 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
45%
Late-arriving aircraft
31%
National Airspace System
21%
Extreme weather
3%

The largest share of delay minutes, 45%, 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 4,197 of the 9,356 delay minutes reported here. The split is drawn from 9,356 reported delay minutes.

The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 87.7% on time here.

Cancellations sit at 1.70% against a national 1.81%, which is ordinary. Diversions add another 0.19%.

Connections and stage length

What a delay here costs

6.7% 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 364 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5am–8am window matters as much as it does.

The return leg runs 75.6% on time across 528 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

One caution: this is a thin sample. 530 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 PWM to PHL

Put together: treat all of this as provisional. 530 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 77.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 520 completed flights over 12 months sit behind that.

Where to go next

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