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DelayAtlas

Carrier route record

AAPHL→BTV

American Airlines · Philadelphia to Burlington

Flights
190
Period
September 2025 to August 2026
Share of route
17%
Carriers
3
CGRADE

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

American on PHL to BTV sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 190 flights, with a median arrival 7 minutes early.

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

Key figures

On time

73.7%

Arrivals under 15 minutes late, of 186 completed flights

Avg delay

77 min

Across delayed arrivals only, not all flights

Cancelled

1.58%

National rate is 1.89%

Whole route

75.0%

Every carrier on PHL to BTV, 1,144 flights

These figures cover 190 flights between September 2025 and August 2026. Beyond the headline rate, 12.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

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Carrier by carrier

American against every carrier on PHL to BTV

American flew 190 of the 1,144 flights on PHL to BTV, about 17% of it. Its 73.7% on time is about level with the route as a whole at 75.0%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Republic at 88.5% to PSA at 73.2%. One 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 PHL to BTV
AirlineFlightsOn timeAvg delayCancelledGrade
Republic Airwaysthin sample12688.5%76 min0.79%A+
American Airlines (this page)thin sample19073.7%77 min1.58%C
PSA Airlines82873.2%91 min6.40%C−

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 35 points, against half a point between the best and worst carrier.

  • 5am–8am—
  • 8am–11am53 flights82.7%
  • 11am–2pm34 flights72.7%
  • 2pm–5pm46 flights52.2%
  • 5pm–8pm16 flights—
  • 8pm–5am41 flights87.2%

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

The 8pm–5am window is the strongest at 87.2% on time. The full set of windows spans 35 points.

Across the year

American on PHL to BTV through the year

  • Jul–Sep 202546 flights65.2%
  • Oct–Dec 202558 flights73.2%
  • Apr–Jun 202629 flights—
  • Jul–Sep 202657 flights74.5%

Scale runs 55% to 80%. 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 73.7% on time across 190 flights.

Quarter by quarter American on PHL to BTV held fairly steady: 65.2% in Jul–Sep 2025, 73.2% in Oct–Dec 2025 and 74.5% in Jul–Sep 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Across the week, Sunday is the strongest day at 77.4% on time and Monday the weakest at 63.6%, a spread of 14 points.

Arrival by arrival

How late American on PHL to BTV runs when it is late

American on PHL to BTV often beats the schedule: 48 of 186 completed flights, 26%, arrived 15 minutes or more early. The 49 late arrivals split 14 under half an hour, 12 between 30 and 60 minutes, and 23 an hour or more.

  • 15+ min early48 flights25.8%
  • Within 15 min89 flights47.8%
  • 15–29 min late14 flights7.5%
  • 30–59 min late12 flights6.5%
  • 1–2 hours late16 flights8.6%
  • 2+ hours late7 flights3.8%

Scale runs 0% to 100%.

Share of 186 completed flights by arrival against schedule.

7 of 45 late departures made up the time and arrived on time, 16% of them. In the other direction, 11 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at BTV.

The worst days

Worst days for American on PHL to BTV

The latest arrival of the period was on 15 September 2025, 7 hours 8 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across September, July and October, with no single month standing out.

The latest arrivals of American on PHL to BTV in the period
DateArrived late byLargest filed cause
15 September 20257 hours 8 minutesCarrier
11 July 20265 hours 37 minutesCarrier
6 September 20255 hours 15 minutesLate-arriving aircraft
6 July 20263 hours 13 minutesExtreme weather
5 October 20252 hours 40 minutesLate-arriving aircraft

Delay causes

Why American runs late on this route

Late-arriving aircraft accounts for 49% of the 3,757 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    49%
  • Carrier
    29%
  • National Airspace System
    19%
  • Extreme weather
    3%

49% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,757 reported delay minutes here, that single category outweighs weather by 18 to one. The split is drawn from 3,757 reported delay minutes.

Cancellations sit at 1.58% against a national 1.89%, which is ordinary. Diversions add another 0.53%.

Connections and stage length

What a delay here costs

12.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

At 335 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 8pm–5am window matters as much as it does.

The return leg is a different operation and performs like one: it runs 69.1% on time across 191 flights, 5 points below 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 5 points of difference.

One caution: this is a thin sample. 190 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 PHL to BTV

Put together: treat all of this as provisional. 190 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 73.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 186 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.