No delays reported for F9 4135 (MIA → CLE) as of 6:51 PM ET. It arrived on time 59.7% of the time in June-August 2026. When it was late, the average delay was 1h 18m. 1.6% of flights were cancelled. Right now there are no reported delays at MIA, CLE.
May not fly today
Next leg MIA → CLE, scheduled 8:32 PM local time. No delays at MIA right now. This flight number flew about 5 days a week in June-August 2026, so it may not operate today.
Cancellation risk: Low 1.6% of its flights were cancelled in June-August 2026.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check Frontier for official times.
What to do now
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| MIA → CLE Miami, FL to Cleveland, OH | 8:32 PM → 11:38 PM | 60% |
Local times. Schedules change; check your booking.
How reliable is F9 4135?
| Arrived on time (within 15 min) | 59.7% |
| Average delay when late | 78 min |
| Cancelled | 1.6% |
| Diverted | 1.6% |
| Flights tracked | 64 |
Best and worst days to fly F9 4135
F9 4135 was most reliable on Thursdays (75% on time) and least reliable on Mondays (50%).
| Monday | |
| Tuesday | Too few flights |
| Wednesday | Too few flights |
| Thursday | |
| Friday | |
| Saturday | |
| Sunday |
Why it runs late
| Late-arriving plane | |
| Airline (crew, maintenance) | |
| Air traffic system | |
| Extreme weather |
Share of delay minutes by cause, as reported by Frontier to the Department of Transportation.
Other flights MIA → CLE
All flights on this route, ranked
Live status at its airports
We show airport-wide airport status, not this flight's gate or live position. For that, check the Frontier app.
Frontier delays and what you're owed · Airline phone numbers
About this data
On-time history: U.S. Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, June-August 2026. Live conditions: live airport status. "On time" means arriving within 15 minutes of schedule.
Common questions
Is F9 4135 delayed today?
Right now there are no reported delays at MIA, CLE. Checked 6:51 PM ET. For this flight's gate and exact status, check the Frontier app.
Is F9 4135 usually on time?
F9 4135 arrived within 15 minutes of schedule 59.7% of the time in June-August 2026, with an average delay of 78 minutes when late.
How often is F9 4135 cancelled?
1.6% of F9 4135 flights were cancelled in June-August 2026.