Carrier route record
OHBTV→PHL
PSA Airlines · Burlington to Philadelphia
- Flights
- 716
- Period
- July 2025 to June 2026
- Share of route
- 65%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with PSA Airlines.
PSA on BTV to PHL lands a B−, about a point 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 close to two hours on average. That is a workable record, not a spotless one. That rests on 716 flights, with a median arrival 12 minutes early.
The US average over the same twelve months is 77.6%, so there is little to separate PSA on BTV to PHL from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
78.6%
Arrivals under 15 minutes late, of 673 completed flights
Avg delay
108 min
Across delayed arrivals only, not all flights
Cancelled
5.87%
National rate is 1.81%
Whole route
77.0%
Every carrier on BTV to PHL, 1,099 flights
These figures cover 716 flights between July 2025 and June 2026. Beyond the headline rate, 9.7% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
PSA against every carrier on BTV to PHL
PSA flew 716 of the 1,099 flights on BTV to PHL, most of the route. Its 78.6% on time is 2 points better than the route as a whole, which runs 77.0%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Republic at 80.5% to American at 69.4%. 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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 162 | 80.5% | 95 min | 4.94% | B− |
| PSA Airlines (this page) | 716 | 78.6% | 108 min | 5.87% | B− |
| American Airlinesthin sample | 221 | 69.4% | 79 min | 0.90% | C+ |
Departure window
When PSA runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 21 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–8am242 flights79.5%
- 8am–11am23 flights—
- 11am–2pm205 flights85.9%
- 2pm–5pm114 flights64.9%
- 5pm–8pm132 flights76.9%
- 8pm–5am—
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 11am–2pm slot at 85.9% on time, ahead of 2pm–5pm at 64.9%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 5am–8am window is the busiest, with 242 flights scheduled in it.
Across the year
PSA on BTV to PHL through the year
December is the weak month at 55.4% on time, against 89.7% in May. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. January was the busiest month here, with 93 flights.
Across the week, Monday is the strongest day at 84.4% on time and Sunday the weakest at 71.9%. 13 points is a smaller lever than departure hour, but it is free.
Delay causes
Why PSA runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 54% of the 16,000 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.
- 54%Late-arriving aircraft
- 30%Carrier
- 12%National Airspace System
- 3%Extreme weather
- 0%Security
54% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 16,000 reported delay minutes here, that single category outweighs weather by 16 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 15,583 reported delay minutes.
Cancellations run at 5.87%, against 1.81% nationally. That is roughly one flight in fifteen cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.7% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum 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 11am–2pm window matters as much as it does.
The return leg runs 77.9% on time across 716 flights, within half a point 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. 716 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 PSA on BTV to PHL
Put together: the delay figures matter less here than the 5.87% cancellation rate. A late arrival costs you close to two hours; a cancelled flight costs you the day. Book the 11am–2pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 673 completed flights over 12 months sit behind that.
Related
Where to go next
- BTV to PHL, every carrier
- PSA on PHL to BTV, the return leg
- Republic Airways on BTV to PHL80.5%
- American Airlines on BTV to PHL69.4%
- PSA Airlines network-wide record
- Philadelphia International (PHL) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.