Carrier route record

OHIND→PHL

PSA Airlines · Indianapolis to Philadelphia

Flights: 335
Period: July 2025 to June 2026
Share of route: 22%
Carriers: 3

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

PSA on IND 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 close to two hours on average. That is a workable record, not a spotless one. That rests on 335 flights. The strongest carrier on the route with a full sample, Republic Airways, flew 602 at 89.6% on time.

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

On time

77.6%

Arrivals under 15 minutes late, of 313 completed flights

Avg delay

101 min

Across delayed arrivals only, not all flights

Cancelled

6.57%

National rate is 1.81%

Whole route

79.7%

Every carrier on IND to PHL, 1,549 flights

These figures cover 335 flights between July 2025 and June 2026. The median arrival is 13 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

PSA against every carrier on IND to PHL

PSA flew 335 of the 1,549 flights on IND to PHL, about 22% of it. Its 77.6% on time is 2 points worse than the route as a whole, which runs 79.7%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Republic at 89.6% to American at 70.9%.

The choice of carrier is not cosmetic here. Republic Airways arrives on time 89.6% of the time; American Airlines manages 70.9%. Sample sizes sit next to every figure, because a two-point gap across 612 flights means less than a ten-point one.

On-time performance by carrier on IND to PHL
Airline	Flights	On time	Avg delay	Cancelled	Grade
Republic Airways	602	89.6%	58 min	1.83%	A
PSA Airlines (this page)thin sample	335	77.6%	101 min	6.57%	B−
American Airlines	612	70.9%	103 min	2.29%	C

The spread between Republic and American is 19 points, wide enough that it should decide the booking. On a hundred trips that is 19 more arrivals inside the on-time window.

Departure window

When PSA runs best on this route

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 335 flights.

5am–8am21 flights—
8am–11am—
11am–2pm177 flights76.5%
2pm–5pm87 flights75.9%
5pm–8pm50 flights77.3%
8pm–5am—

Scale runs 65% to 85%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is the strongest at 77.3% on time. The full set of windows spans about a point.

Across the year

PSA on IND to PHL through the year

Jul–Sep 202524 flights—
Oct–Dec 202553 flights65.4%
Jan–Mar 202698 flights80.2%
Apr–Jun 2026160 flights77.8%

Scale runs 55% 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 77.6% on time across 335 flights.

PSA on IND to PHL did not run the same all year. Its best quarter was Jan–Mar 2026 at 80.2% on time and its weakest Oct–Dec 2025 at 65.4%, a swing of 15 points on roughly 112 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, Tuesday is the strongest day at 88.4% on time and Wednesday the weakest at 70.7%. 18 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 72% of the 7,069 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.

Late-arriving aircraft
72%
Carrier
15%
National Airspace System
12%
Extreme weather
1%
Security
0%

72% 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 7,069 reported delay minutes here, that single category outweighs weather by 54 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 7,069 reported delay minutes.

Cancellations run at 6.57%, against 1.81% nationally. That is about 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

7.0% 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 close to two hours, which a normal layover absorbs.

The 588 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The return leg runs 78.0% on time across 338 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. 335 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 IND to PHL

Put together: the delay figures matter less here than the 6.57% cancellation rate. A late arrival costs you close to two hours; a cancelled flight costs you the day. Book the 5pm–8pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 313 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