Flight number record

F9 1016

Frontier Airlines · Philadelphia to San Juan

Route: PHL → SJU
Departs: 06:00
Flights: 308
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s F9 1016, check with Frontier Airlines.

F9 1016 draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is about an hour behind schedule. Build slack into anything you connect to. That rests on 308 flights, with a median arrival 2 minutes late.

The national on-time rate over the same period is 77.6%, so F9 1016 runs 12 points behind the country as a whole. Across a thousand flights that is about 119 extra late arrivals.

On time

65.7%

Arrivals under 15 minutes late, of 297 completed flights

Avg delay

66 min

Across delayed arrivals only, not all flights

Cancelled

3.25%

National rate is 1.81%

1 hour+ late

13.1%

National rate is 8.1%

These figures cover 308 flights between July 2025 and June 2026. Beyond the headline rate, 13.1% 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 F9 1016 flies

F9 1016 flies PHL to SJU without a single fixed slot. Its most common scheduled departure was 06:00, used on 97 of 308 flights, with 11:46 (35 flights) and 08:00 (33 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:0097 flights31.5%
Departs 11:4635 flights11.4%
Departs 08:0033 flights10.7%

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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and F9 1016 runs 24 points worse at 65.7%. 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

F9 1016 next to PHL to SJU

Every carrier on PHL to SJU combined arrived on time 63.1% of the time across 1,879 flights, so F9 1016 is 3 points ahead of it. Frontier flew 865 flights on the same city pair under all its flight numbers, including this one, and those ran 57.9% on time. Across its whole network Frontier Airlines managed 73.2%, which this flight trails by 8 points.

F9 1016 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
F9 1016thin sample	308	65.7%	66 min	3.25%	C−
All Frontier Airlines on PHL–SJU	865	57.9%	75 min	3.35%	D−
All carriers on PHL–SJU	1,879	63.1%	83 min	3.19%	D−
Frontier Airlines, whole network	205,332	73.2%	84 min	1.85%	C

Across the year

F9 1016 quarter by quarter

F9 1016 did not run the same all year. Its best quarter was Apr–Jun 2026 at 80.3% on time and its weakest Jan–Mar 2026 at 50.7%, a swing of 30 points on roughly 77 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.

Jul–Sep 202587 flights61.9%
Oct–Dec 202581 flights70.0%
Jan–Mar 202671 flights50.7%
Apr–Jun 202669 flights80.3%

Scale runs 40% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, F9 1016 did best on Friday at 78.3% on time and worst on Monday at 53.2%. Each day rests on about 44 flights, so a gap of 25 points is worth noticing but could still narrow in another year.

Delay causes

Why F9 1016 runs late

One category carries most of the weight here. Carrier accounts for 43% of the 6,738 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.

Carrier
43%
National Airspace System
32%
Late-arriving aircraft
18%
Extreme weather
7%

The largest share of delay minutes, 43%, 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 2,893 of the 6,738 delay minutes reported here. The split is drawn from 6,738 delay minutes reported on F9 1016.

Cancellations run at 3.25%, against 1.81% nationally. That is about one flight in 30 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 13.1% 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 1,576 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

Every one of the 308 flights under F9 1016 in the data flew PHL to SJU. 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. 308 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 1016

For a booking, the cancellation rate is the figure to plan around on F9 1016: 3.25% of its 308 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures