Carrier route record
F9CLE→MIA
Frontier Airlines · Cleveland to Miami
- Flights
- 267
- Period
- September 2025 to August 2026
- Share of route
- 30%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Frontier Airlines.
Frontier on CLE to MIA sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 267 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.3%, so Frontier on CLE to MIA runs 5 points behind the country as a whole. Across a thousand flights that is about 48 extra late arrivals.
Key figures
On time
72.5%
Arrivals under 15 minutes late, of 262 completed flights
Avg delay
85 min
Across delayed arrivals only, not all flights
Cancelled
1.50%
National rate is 1.89%
Whole route
79.7%
Every carrier on CLE to MIA, 892 flights
These figures cover 267 flights between September 2025 and August 2026. Beyond the headline rate, 11.8% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Frontier against every carrier on CLE to MIA
Frontier flew 267 of the 892 flights on CLE to MIA, about 30% of it. Its 72.5% on time is 7 points worse than the route as a whole, which runs 79.7%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from American at 86.6% to Republic at 25.0%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlines | 456 | 86.6% | 132 min | 1.10% | A |
| Envoy Airthin sample | 165 | 73.6% | 61 min | 1.21% | C |
| Frontier Airlines (this page)thin sample | 267 | 72.5% | 85 min | 1.50% | C |
| Republic Airwaysthin sample | 4 | 25.0% | 39 min | 0.00% | F+ |
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When Frontier runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 20 points, against half a point between the best and worst carrier.
- 5am–8am17 flights—
- 8am–11am21 flights—
- 11am–2pm45 flights84.4%
- 2pm–5pm126 flights64.0%
- 5pm–8pm50 flights78.7%
- 8pm–5am8 flights—
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 11am–2pm slot at 84.4% on time, ahead of 2pm–5pm at 64.0%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 2pm–5pm window is the busiest, with 126 flights scheduled in it.
Across the year
Frontier on CLE to MIA through the year
- Jul–Sep 202517 flights—
- Oct–Dec 202565 flights79.7%
- Jan–Mar 202663 flights61.7%
- Apr–Jun 202678 flights75.6%
- Jul–Sep 202644 flights67.4%
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 72.5% on time across 267 flights.
Frontier on CLE to MIA did not run the same all year. Its best quarter was Oct–Dec 2025 at 79.7% on time and its weakest Jan–Mar 2026 at 61.7%, a swing of 18 points on roughly 67 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, Friday is the strongest day at 78.0% on time and Sunday the weakest at 65.5%, a spread of 13 points.
Arrival by arrival
How late Frontier on CLE to MIA runs when it is late
Frontier on CLE to MIA often beats the schedule: 75 of 262 completed flights, 29%, arrived 15 minutes or more early. The 72 late arrivals split 16 under half an hour, 25 between 30 and 60 minutes, and 31 an hour or more.
- 15+ min early75 flights28.6%
- Within 15 min115 flights43.9%
- 15–29 min late16 flights6.1%
- 30–59 min late25 flights9.5%
- 1–2 hours late18 flights6.9%
- 2+ hours late13 flights5.0%
Scale runs 0% to 100%.
Share of 262 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 66 departures that left 15 minutes late or more, only 7 made it up before arrival. 13 flights left on time and still arrived late.
The worst days
Worst days for Frontier on CLE to MIA
The latest arrival of the period was on 26 March 2026, 17 hours 51 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 |
|---|---|---|
| 26 March 2026 | 17 hours 51 minutes | Late-arriving aircraft |
| 10 October 2025 | 4 hours 34 minutes | Late-arriving aircraft |
| 9 April 2026 | 4 hours 12 minutes | Carrier |
| 14 June 2026 | 3 hours 45 minutes | Carrier |
| 13 March 2026 | 3 hours 34 minutes | Late-arriving aircraft |
Delay causes
Why Frontier runs late on this route
Late-arriving aircraft accounts for 57% of the 6,151 delay minutes carriers reported here, and the remaining four split what is left.
- 57%Late-arriving aircraft
- 25%Carrier
- 18%National Airspace System
- 0%Extreme weather
57% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,151 reported delay minutes here, that single category outweighs weather by 57 to one. The split is drawn from 6,151 reported delay minutes.
Cancellations sit at 1.50% against a national 1.89%, which is ordinary. Diversions add another 0.37%.
Connections and stage length
What a delay here costs
11.8% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 1,080 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.
The return leg runs 72.1% on time across 266 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. 267 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 Frontier on CLE to MIA
Put together: treat all of this as provisional. 267 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 72.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 262 completed flights over 12 months sit behind that.
Related
Where to go next
- CLE to MIA, every carrier
- Frontier on MIA to CLE, the return leg
- American Airlines on CLE to MIA86.6%
- Envoy Air on CLE to MIA73.6%
- Frontier Airlines network-wide record
- Cleveland Hopkins International (CLE) delay statistics
- Miami International (MIA) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
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.