Flight number record
OH 5578
PSA Airlines · Cincinnati to Philadelphia
- Route
- CVG → PHL
- Departs
- 07:56
- Flights
- 332
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s OH 5578, check with PSA Airlines. PSA Airlines flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
OH 5578 earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 332 flights, with a median arrival 11 minutes early.
Set against the rest of the country, OH 5578's record is 7 points better than the US average of 77.6%. That gap is worth roughly 72 fewer late arrivals for every thousand flights.
Key figures
On time
84.8%
Arrivals under 15 minutes late, of 323 completed flights
Avg delay
106 min
Across delayed arrivals only, not all flights
Cancelled
2.41%
National rate is 1.81%
1 hour+ late
8.0%
National rate is 8.1%
These figures cover 332 flights between July 2025 and June 2026. Beyond the headline rate, 8.0% 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.
Schedule
When OH 5578 flies
OH 5578 flies CVG to PHL without a single fixed slot. Its most common scheduled departure was 07:56, used on 68 of 332 flights, with 08:00 (62 flights) and 07:53 (58 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 07:5668 flights20.5%
- Departs 08:0062 flights18.7%
- Departs 07:5358 flights17.5%
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 07:56 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OH 5578 runs 5 points worse at 84.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Against the route
OH 5578 next to CVG to PHL
Every carrier on CVG to PHL combined arrived on time 79.4% of the time across 1,185 flights, so OH 5578 is 5 points ahead of it. PSA flew 999 flights on the same city pair under all its flight numbers, including this one, and those ran 79.1% on time. Across its whole network PSA Airlines managed 74.6%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OH 5578thin sample | 332 | 84.8% | 106 min | 2.41% | B |
| All PSA Airlines on CVG–PHL | 999 | 79.1% | 101 min | 3.30% | B− |
| All carriers on CVG–PHL | 1,185 | 79.4% | 101 min | 2.95% | B |
| PSA Airlines, whole network | 241,957 | 74.6% | 94 min | 4.34% | C− |
Across the year
OH 5578 quarter by quarter
Quarter by quarter OH 5578 held fairly steady: 83.1% in Jul–Sep 2025, 84.7% in Oct–Dec 2025, 86.2% in Jan–Mar 2026 and 85.2% in Apr–Jun 2026. A spread of 3 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202578 flights83.1%
- Oct–Dec 202586 flights84.7%
- Jan–Mar 202684 flights86.2%
- Apr–Jun 202684 flights85.2%
Scale runs 75% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, OH 5578 did best on Sunday at 89.8% on time and worst on Thursday at 76.9%. Each day rests on about 47 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Delay causes
Why OH 5578 runs late
One category carries most of the weight here. Carrier accounts for 60% of the 5,181 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.
- 60%Carrier
- 28%Late-arriving aircraft
- 10%National Airspace System
- 3%Extreme weather
The largest share of delay minutes, 60%, 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 3,105 of the 5,181 delay minutes reported here. The split is drawn from 5,181 delay minutes reported on OH 5578.
Cancellations sit at 2.41% against a national 1.81%, which is ordinary. Diversions add another 0.30%.
Connections and routes
What a delay on this flight costs
8.0% 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 507 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.
Every one of the 332 flights under OH 5578 in the data flew CVG to PHL. 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. 332 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 OH 5578
For a booking, read OH 5578 as 84.8% on time with 2.41% cancelled over 332 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- CVG to PHL, every carrier and departure
- PHL to CVG, the return direction
- Cincinnati/Northern Kentucky International (CVG) delay statistics
- Philadelphia International (PHL) delay statistics
- PSA Airlines on-time record
- Every PSA Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Connecting flights: how much buffer the data says you need
A flight number here means PSA 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.