JJ3947
JJ3947 (TAM Brazilian Airlines) flies Rio de Janeiro to São Paulo. Of 456 departures recorded from October 2024 to July 2026, 80.8% left on time, according to Brazil's ANAC.
according to Brazil's ANAC · Oct 14, 2024 → Jul 31, 2026 only flights to or from one country, not the full total
Recorded departures by month
Partial coverage: only flights touching the source country · 22 of 22 periods have data
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 23 | 22 | ▼ 4.3% |
| February | 20 | 20 | 0.0% |
| March | 20 | 22 | ▲ 10.0% |
| April | 21 | 22 | ▲ 4.8% |
| May | 21 | 20 | ▼ 4.8% |
| June | 20 | 20 | 0.0% |
| July | 22 | 23 | ▲ 4.5% |
| August | 21 | – | – |
| September | 22 | – | – |
| October | 23 | – | in progress |
| November | 20 | – | – |
| December | 21 | – | – |
| Year to date (Jan–Jul) | 147 | 149 | ▲ 1.4% |
according to Brazil's ANAC · October 2024 → July 2026
On-time departures by month
Partial coverage: only flights touching the source country · 22 of 22 periods have data
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 95.2% | 63.6% | ▼ 33.2% |
| February | 83.3% | 73.7% | ▼ 11.6% |
| March | 84.2% | 81.8% | ▼ 2.8% |
| April | 95.2% | 77.3% | ▼ 18.9% |
| May | 90.5% | 100.0% | ▲ 10.5% |
| June | 95.0% | 100.0% | ▲ 5.3% |
| July | 95.5% | 91.3% | ▼ 4.3% |
| August | 90.5% | – | – |
| September | 84.2% | – | – |
| October | 69.6% | – | in progress |
| November | 70.0% | – | – |
| December | 38.9% | – | – |
| Year-to-date average (Jan–Jul) | 91.3% | 84.0% | ▼ 8.0% |
according to Brazil's ANAC · October 2024 → July 2026
Average departure delay by month
Partial coverage: only flights touching the source country · 22 of 22 periods have data
according to Brazil's ANAC · October 2024 → July 2026
Cancelled departures by month
Partial coverage: only flights touching the source country · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 0 | ▼ 100.0% |
| February | 2 | 1 | ▼ 50.0% |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 2 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 3 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 3 | – | – |
| Year to date (Jan–Jul) | 5 | 4 | ▼ 20.0% |
according to Brazil's ANAC · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
Cancellation share
- Not cancelled 95.8% 437
- Cancelled 4.2% 19
Share of all recorded flights in the period, all legs. · Oct 14, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SDU CGH Santos Dumont Airport – Congonhas–Deputado Freitas Nobre Airport | 366 | 5.0 min | 80.8% | 456 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 13 | 69.2% | 1 |
| November 2024 | 19 | 16 | 50.0% | 3 |
| December 2024 | 20 | 20 | 65.0% | 0 |
| January 2025 | 23 | 21 | 95.2% | 2 |
| February 2025 | 20 | 18 | 83.3% | 2 |
| March 2025 | 20 | 19 | 84.2% | 1 |
| April 2025 | 21 | 21 | 95.2% | 0 |
| May 2025 | 21 | 21 | 90.5% | 0 |
| June 2025 | 20 | 20 | 95.0% | 0 |
| July 2025 | 22 | 22 | 95.5% | 0 |
| August 2025 | 21 | 21 | 90.5% | 0 |
| September 2025 | 22 | 19 | 84.2% | 3 |
| October 2025 | 23 | 23 | 69.6% | 0 |
| November 2025 | 20 | 20 | 70.0% | 0 |
| December 2025 | 21 | 18 | 38.9% | 3 |
| January 2026 | 22 | 22 | 63.6% | 0 |
| February 2026 | 20 | 19 | 73.7% | 1 |
| March 2026 | 22 | 22 | 81.8% | 0 |
| April 2026 | 22 | 22 | 77.3% | 0 |
| May 2026 | 20 | 19 | 100.0% | 1 |
| June 2026 | 20 | 18 | 100.0% | 2 |
| July 2026 | 23 | 23 | 91.3% | 0 |