Frontier Airlines (FFT) on-time performance, September 2026
18,245 scheduled Frontier Airlines departures in US airspace in September 2026, 73.6% of them on time. Measured from FAA departure data, updated every morning.
On time, day by day
Share of Frontier Airlines departures within 15 minutes of schedule, by day. Light bars show each day's departures for context. Worst day: Thursday 3 September at 62.0%. Best: Wednesday 23 September at 88.7%.
Airports, ranked by on-time share
Airports with at least 30 Frontier Airlines departures in the month.
| Airport | Departures | On time | 45+ min late | Avg delay (min) |
|---|---|---|---|---|
| BQN Aguadilla | 41 | 92.7% | 0.0% | -8.1 |
| JFK New York | 30 | 86.7% | 3.3% | -1.7 |
| RNO Reno | 51 | 86.3% | 9.8% | 9.4 |
| CVG Cincinnati | 219 | 85.8% | 8.2% | 3.5 |
| DCA Washington | 80 | 85.0% | 7.5% | 7.2 |
| ELP El Paso | 54 | 83.3% | 11.1% | 10.7 |
| MDW Chicago | 69 | 82.6% | 11.6% | 8.3 |
| OKC Oklahoma City | 40 | 82.5% | 12.5% | 9.1 |
| DEN Denver | 1,850 | 81.8% | 9.8% | 5.9 |
| SAT San Antonio | 77 | 81.8% | 11.7% | 6.4 |
| PDX Portland | 60 | 81.7% | 5.0% | 4.3 |
| ORF Norfolk | 48 | 81.2% | 10.4% | 9.4 |
| TPA Tampa | 530 | 80.8% | 10.6% | 10.8 |
| PNS Pensacola | 36 | 80.6% | 13.9% | 15.2 |
| IND Indianapolis | 107 | 80.4% | 10.3% | 6.1 |
| SMF Sacramento | 85 | 80.0% | 9.4% | 5.5 |
| ONT Ontario | 228 | 79.4% | 14.5% | 10.9 |
| GRR Grand Rapids | 34 | 79.4% | 8.8% | 7.1 |
| PHX Phoenix | 477 | 79.2% | 10.5% | 9.2 |
| BUF Buffalo | 48 | 79.2% | 6.2% | 1.4 |
| SJU San Juan | 418 | 78.9% | 7.2% | 8.5 |
| AUS Austin | 132 | 78.8% | 9.8% | 7.9 |
| STL St. Louis | 89 | 78.7% | 7.9% | 9.0 |
| RDU Raleigh-Durham | 360 | 78.3% | 11.7% | 13.5 |
| SEA Seattle | 133 | 78.2% | 9.8% | 12.3 |
| LAS Las Vegas | 1,417 | 78.1% | 13.1% | 12.0 |
| DFW Dallas-Fort Worth | 1,179 | 77.4% | 12.2% | 13.7 |
| CLE Cleveland | 427 | 77.0% | 10.8% | 11.5 |
| IAH Houston | 537 | 76.9% | 12.5% | 14.4 |
| MIA Miami | 306 | 76.8% | 14.7% | 18.6 |
| MSP Minneapolis | 163 | 76.7% | 9.2% | 15.3 |
| TTN Trenton | 55 | 76.4% | 12.7% | 2.0 |
| SLC Salt Lake City | 225 | 76.0% | 12.4% | 14.5 |
| DTW Detroit | 408 | 75.5% | 13.2% | 14.9 |
| MCO Orlando | 1,755 | 75.2% | 12.2% | 13.1 |
| BNA Nashville | 148 | 75.0% | 16.2% | 15.0 |
| RSW Fort Myers | 56 | 75.0% | 19.6% | 20.7 |
| MSY New Orleans | 111 | 73.9% | 16.2% | 16.1 |
| BWI Baltimore | 381 | 72.7% | 15.2% | 14.1 |
| JAX Jacksonville | 55 | 72.7% | 20.0% | 30.8 |
| EWR Newark | 117 | 72.6% | 17.1% | 23.2 |
| ORD Chicago | 323 | 71.2% | 18.0% | 21.3 |
| CMH Columbus | 58 | 70.7% | 17.2% | 22.3 |
| PHL Philadelphia | 727 | 70.6% | 19.5% | 23.6 |
| ISP Islip | 53 | 69.8% | 11.3% | 16.0 |
| IAD Washington | 202 | 69.3% | 20.8% | 22.4 |
| SJC San Jose | 39 | 69.2% | 15.4% | 21.3 |
| LAX Los Angeles | 521 | 69.1% | 16.3% | 19.8 |
| CLT Charlotte | 308 | 68.5% | 19.5% | 28.4 |
| SNA Santa Ana | 82 | 68.3% | 15.9% | 17.2 |
| MCI Kansas City | 47 | 68.1% | 21.3% | 20.7 |
| OAK Oakland | 47 | 66.0% | 23.4% | 22.1 |
| FLL Fort Lauderdale | 449 | 64.4% | 20.7% | 26.5 |
| BUR Burbank | 35 | 62.9% | 14.3% | 15.0 |
| SFO San Francisco | 368 | 59.2% | 26.6% | 23.3 |
| ATL Atlanta | 1,729 | 57.1% | 21.7% | 30.9 |
| SAN San Diego | 170 | 54.7% | 25.9% | 27.7 |
| LGA New York | 136 | 50.0% | 32.4% | 53.1 |
| BOS Boston | 59 | 49.2% | 22.0% | 34.6 |
| BDL Windsor Locks | 38 | 44.7% | 39.5% | 50.6 |
Least punctual routes
Routes with at least 20 Frontier Airlines departures, lowest on-time share first.
| Route | Flights | On time | Avg delay |
|---|---|---|---|
| LAS to SAN Las Vegas to San Diego | 29 | 24.1% | 51.8 |
| ATL to SFO Atlanta to San Francisco | 29 | 31.0% | 52.4 |
| SAN to LAS San Diego to Las Vegas | 28 | 32.1% | 30.8 |
| LGA to CLT New York to Charlotte | 30 | 33.3% | 63.1 |
| ONT to SFO Ontario to San Francisco | 20 | 35.0% | 46.5 |
| ATL to LAX Atlanta to Los Angeles | 52 | 36.5% | 33.0 |
| CLT to LGA Charlotte to New York | 30 | 36.7% | 43.0 |
| SFO to SAN San Francisco to San Diego | 28 | 39.3% | 38.4 |
| LAX to SFO Los Angeles to San Francisco | 43 | 39.5% | 43.3 |
| SAN to SFO San Diego to San Francisco | 30 | 40.0% | 30.0 |
Busiest routes
The ten routes Frontier Airlines flew most this month.
| Route | Flights | On time | Avg delay |
|---|---|---|---|
| MCO to PHL Orlando to Philadelphia | 146 | 68.5% | 28.5 |
| PHL to MCO Philadelphia to Orlando | 145 | 73.8% | 18.6 |
| DEN to LAS Denver to Las Vegas | 137 | 82.5% | 8.0 |
| LAS to DEN Las Vegas to Denver | 133 | 80.5% | 13.0 |
| SJU to MCO San Juan to Orlando | 129 | 85.3% | 4.9 |
| MCO to SJU Orlando to San Juan | 127 | 78.7% | 12.0 |
| PHX to DEN Phoenix to Denver | 126 | 81.0% | 10.0 |
| DEN to PHX Denver to Phoenix | 123 | 81.3% | 4.5 |
| MCO to ATL Orlando to Atlanta | 114 | 67.5% | 10.9 |
| DEN to DFW Denver to Dallas-Fort Worth | 108 | 76.9% | 11.4 |
Other months for Frontier Airlines
Airport pages for September 2026
How we measure
On time means the aircraft took off within 15 minutes of its scheduled departure, after subtracting the departure airport's normal taxi time (FAA SWIM reports wheels-off, not push-back, so the median taxi time of the last 30 days is taken off every flight first). Average delay is the mean of that taxi-adjusted delay over all departures; early departures count as negative minutes, so an operator that routinely leaves early can show a negative average. 45+ min late is the share of departures that left 45 minutes or more behind schedule, the point at which most connections are at risk.
Scope: scheduled airlines only, the same set as the monthly State of the Sky report (operators with published routes; private, fractional and charter operators are left out), so the two publications give the same numbers for the same month. Departures are counted by scheduled day (UTC). Each day's flights are rolled up overnight and published the next morning; the newest day keeps filling in for a day or two and is only shown once it is substantially complete. Figures can differ by a few tenths of a point from the State of the Sky report for the same month: that report is frozen on the 2nd of the following month, while these pages are rebuilt from the live rollup, which recomputes each airport's taxi baseline nightly and re-rolls the last week of the month as late departure times arrive (September 2026 at SFO: 16,398 departures in both, 69.2% on time here against 69.5% in the report).
Source: FAA System Wide Information Management (SWIM) flight plans and departure times, processed by PlaneTrack. Free to quote with credit to PlaneTrack (CC BY 4.0).