Flight number record
F9 1542
Frontier Airlines · Orlando to Philadelphia
- Route
- MCO → PHL
- Departs
- 05:05
- Flights
- 272
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 1542, check with Frontier Airlines.
F9 1542 earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 10 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 272 flights, with a median arrival 10 minutes early.
Set against the rest of the country, F9 1542's record is 10 points better than the US average of 77.3%. That gap is worth roughly 95 fewer late arrivals for every thousand flights.
Key figures
On time
86.8%
Arrivals under 15 minutes late, of 265 completed flights
Avg delay
94 min
Across delayed arrivals only, not all flights
Cancelled
2.57%
National rate is 1.89%
1 hour+ late
5.7%
National rate is 8.3%
These figures cover 272 flights between September 2025 and August 2026. The median arrival is 10 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.
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Schedule
When F9 1542 flies
F9 1542 flies MCO to PHL without a single fixed slot. Its most common scheduled departure was 05:05, used on 48 of 272 flights, with 05:01 (43 flights) and 06:15 (35 flights) next.
- Departs 05:0548 flights17.6%
- Departs 05:0143 flights15.8%
- Departs 06:1535 flights12.9%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 05:05 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and F9 1542 runs 3 points worse at 86.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
F9 1542 next to MCO to PHL
Every carrier on MCO to PHL combined arrived on time 71.3% of the time across 5,333 flights, so F9 1542 is 16 points ahead of it. Frontier flew 1,619 flights on the same city pair under all its flight numbers, including this one, and those ran 69.2% on time. Across its whole network Frontier Airlines managed 72.7%, which this flight beats by 14 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 1542thin sample | 272 | 86.8% | 94 min | 2.57% | A |
| All Frontier Airlines on MCO–PHL | 1,619 | 69.2% | 98 min | 2.16% | C |
| All carriers on MCO–PHL | 5,333 | 71.3% | 90 min | 2.46% | C |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 1542 quarter by quarter
Quarter by quarter F9 1542 held fairly steady: 88.2% in Oct–Dec 2025, 86.0% in Jan–Mar 2026, 87.4% in Apr–Jun 2026 and 83.3% in Jul–Sep 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202517 flights—
- Oct–Dec 202552 flights88.2%
- Jan–Mar 202654 flights86.0%
- Apr–Jun 202687 flights87.4%
- Jul–Sep 202662 flights83.3%
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, F9 1542 did best on Friday at 91.7% on time and worst on Monday at 77.6%. Each day rests on about 39 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 1542 runs when it is late
F9 1542 often beats the schedule: 91 of 265 completed flights, 34%, arrived 15 minutes or more early. The 35 late arrivals split 5 under half an hour, 15 between 30 and 60 minutes, and 15 an hour or more.
- 15+ min early91 flights34.3%
- Within 15 min139 flights52.5%
- 15–29 min late5 flights1.9%
- 30–59 min late15 flights5.7%
- 1–2 hours late9 flights3.4%
- 2+ hours late6 flights2.3%
Scale runs 0% to 100%.
Share of 265 completed flights by arrival against schedule.
8 of 37 late departures made up the time and arrived on time, 22% of them. 6 flights left on time and still arrived late.
The worst days
Worst days for F9 1542
The latest arrival of the period was on 2 August 2026, 17 hours 41 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 2 August 2026 | 17 hours 41 minutes | Late-arriving aircraft |
| 21 March 2026 | 2 hours 53 minutes | Late-arriving aircraft |
| 26 January 2026 | 2 hours 47 minutes | National Airspace System |
| 14 March 2026 | 2 hours 36 minutes | Late-arriving aircraft |
| 29 January 2026 | 2 hours 15 minutes | Carrier |
Delay causes
Why F9 1542 runs late
Late-arriving aircraft accounts for 58% of the 3,282 delay minutes carriers reported here, and the remaining four split what is left.
- 58%Late-arriving aircraft
- 28%Carrier
- 14%National Airspace System
- 1%Extreme weather
58% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,282 reported delay minutes here, that single category outweighs weather by 58 to one. The split is drawn from 3,282 delay minutes reported on F9 1542.
Cancellations run at 2.57%, against 1.89% nationally. That is about one flight in 40 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 routes
What a delay on this flight costs
5.7% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.
The 862 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.
Every one of the 272 flights under F9 1542 in the data flew MCO 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. 272 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 F9 1542
For a booking, the cancellation rate is the figure to plan around on F9 1542: 2.57% of its 272 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- MCO to PHL, every carrier and departure
- PHL to MCO, the return direction
- Frontier Airlines 4404 on the same route57.2%
- Orlando International (MCO) delay statistics
- Philadelphia International (PHL) delay statistics
- Frontier Airlines on-time record
- Every Frontier Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means Frontier 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.