Flight number record
F9 3679
Frontier Airlines · Cleveland to Tampa
- Route
- CLE → TPA
- Departs
- 05:30
- Flights
- 252
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s F9 3679, check with Frontier Airlines.
F9 3679 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 an hour and a half. That rests on 252 flights, with a median arrival 14 minutes early.
Set against the rest of the country, F9 3679's record is 7 points better than the US average of 77.6%. That gap is worth roughly 65 fewer late arrivals for every thousand flights.
Key figures
On time
84.1%
Arrivals under 15 minutes late, of 246 completed flights
Avg delay
91 min
Across delayed arrivals only, not all flights
Cancelled
2.38%
National rate is 1.81%
1 hour+ late
5.3%
National rate is 8.1%
These figures cover 252 flights between July 2025 and June 2026. The median arrival is 14 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.
Schedule
When F9 3679 flies
F9 3679 flies CLE to TPA without a single fixed slot. Its most common scheduled departure was 05:30, used on 95 of 252 flights, with 06:00 (32 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 05:3095 flights37.7%
- Departs 06:0032 flights12.7%
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 05:30 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and F9 3679 runs 5 points worse at 84.1%. 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 3679 next to CLE to TPA
Every carrier on CLE to TPA combined arrived on time 79.6% of the time across 1,003 flights, so F9 3679 is 5 points ahead of it. Frontier flew 857 flights on the same city pair under all its flight numbers, including this one, and those ran 77.6% on time. Across its whole network Frontier Airlines managed 73.2%, which this flight beats by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 3679thin sample | 252 | 84.1% | 91 min | 2.38% | B |
| All Frontier Airlines on CLE–TPA | 857 | 77.6% | 78 min | 1.40% | B |
| All carriers on CLE–TPA | 1,003 | 79.6% | 76 min | 1.20% | B |
| Frontier Airlines, whole network | 205,332 | 73.2% | 84 min | 1.85% | C |
Across the year
F9 3679 quarter by quarter
F9 3679 did not run the same all year. Its best quarter was Jul–Sep 2025 at 94.6% on time and its weakest Jan–Mar 2026 at 71.4%, a swing of 23 points on roughly 63 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 202538 flights94.6%
- Oct–Dec 202568 flights83.1%
- Jan–Mar 202665 flights71.4%
- Apr–Jun 202681 flights90.1%
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, F9 3679 did best on Thursday at 88.6% on time and worst on Friday at 75.0%. Each day rests on about 36 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Delay causes
Why F9 3679 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 46% of the 3,538 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.
- 46%Late-arriving aircraft
- 37%Carrier
- 15%National Airspace System
- 2%Extreme weather
46% 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 3,538 reported delay minutes here, that single category outweighs weather by 20 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 3,538 delay minutes reported on F9 3679.
Cancellations sit at 2.38% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
5.3% 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 an hour and a half, which a normal layover absorbs.
The 927 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 252 flights under F9 3679 in the data flew CLE to TPA. 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. 252 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 3679
For a booking, read F9 3679 as 84.1% on time with 2.38% cancelled over 252 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- CLE to TPA, every carrier and departure
- TPA to CLE, the return direction
- Cleveland Hopkins International (CLE) delay statistics
- Tampa International (TPA) 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.