Mountain Air Cargo (MTN) on-time performance, September 2026
1,381 scheduled Mountain Air Cargo departures in US airspace in September 2026, 70.7% of them on time. Measured from FAA departure data, updated every morning.
On time, day by day
Share of Mountain Air Cargo departures within 15 minutes of schedule, by day. Light bars show each day's departures for context. Worst day: Saturday 12 September at 50.0%. Best: Monday 28 September at 88.0%.
Airports, ranked by on-time share
Airports with at least 30 Mountain Air Cargo departures in the month.
| Airport | Departures | On time | 45+ min late | Avg delay (min) |
|---|---|---|---|---|
| MCO Orlando | 34 | 100.0% | 0.0% | -40.0 |
| TLH Tallahassee | 52 | 92.3% | 1.9% | -4.9 |
| BWI Baltimore | 35 | 91.4% | 2.9% | -22.7 |
| SJU San Juan | 100 | 91.0% | 0.0% | -8.9 |
| IAD Washington | 55 | 89.1% | 7.3% | -0.0 |
| MVY Martha'S Vineyard | 31 | 83.9% | 0.0% | -13.0 |
| EYW Key West | 37 | 83.8% | 10.8% | 3.6 |
| FLL Fort Lauderdale | 57 | 80.7% | 10.5% | -1.2 |
| CAE Colombia | 38 | 76.3% | 7.9% | -1.4 |
| CHS Charleston | 33 | 75.8% | 12.1% | -3.9 |
| GSO Greensboro | 34 | 61.8% | 14.7% | 7.9 |
| EWR Newark | 115 | 60.9% | 9.6% | 6.6 |
| MEM Memphis | 95 | 57.9% | 20.0% | 17.3 |
| BQN Aguadilla | 108 | 48.1% | 17.6% | 21.0 |
| PVD Providence | 64 | 40.6% | 17.2% | 23.3 |
| ACK Nantucket | 32 | 31.2% | 59.4% | 36.1 |
| RDU Raleigh-Durham | 42 | 0.0% | 54.8% | 55.6 |
Least punctual routes
Routes with at least 20 Mountain Air Cargo departures, lowest on-time share first.
| Route | Flights | On time | Avg delay |
|---|---|---|---|
| RDU to EWN Raleigh-Durham to New Bern | 21 | 0.0% | 58.8 |
| RDU to ILM Raleigh-Durham to Wilmington | 21 | 0.0% | 52.4 |
| MEM to DHN Memphis to Dothan | 23 | 4.3% | 39.9 |
| MSP to DLH Minneapolis to Duluth | 21 | 28.6% | 52.4 |
| ACK to PVD Nantucket to Providence | 32 | 31.2% | 36.1 |
| BQN to AUA Aguadilla to Oranjestad | 21 | 33.3% | 29.1 |
| BQN to POS Aguadilla to Port-Of-Spain | 20 | 35.0% | 20.6 |
| PVD to MVY Providence to Martha'S Vineyard | 31 | 35.5% | 25.0 |
| EWR to BOS Newark to Boston | 24 | 41.7% | 23.3 |
| ORF to KMQI Norfolk to | 21 | 42.9% | 24.7 |
Busiest routes
The ten routes Mountain Air Cargo flew most this month.
| Route | Flights | On time | Avg delay |
|---|---|---|---|
| EWR to IAD Newark to Washington | 57 | 63.2% | 10.3 |
| IAD to EWR Washington to Newark | 54 | 88.9% | -0.3 |
| EYW to FLL Key West to Fort Lauderdale | 36 | 83.3% | 3.4 |
| FLL to EYW Fort Lauderdale to Key West | 36 | 80.6% | -1.8 |
| BWI to EWR Baltimore to Newark | 34 | 94.1% | -25.3 |
| MCO to TLH Orlando to Tallahassee | 34 | 100.0% | -40.0 |
| TLH to MCO Tallahassee to Orlando | 34 | 94.1% | -1.9 |
| EWR to BWI Newark to Baltimore | 34 | 70.6% | -11.4 |
| PVD to ACK Providence to Nantucket | 32 | 43.8% | 22.1 |
| ACK to PVD Nantucket to Providence | 32 | 31.2% | 36.1 |
Other months for Mountain Air Cargo
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).