JJ3934
JJ3934 (TAM Brazilian Airlines) flies São Paulo to Rio de Janeiro. Of 451 departures recorded from October 2024 to July 2026, 81.5% 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 | 21 | 22 | ▲ 4.8% |
| April | 22 | 21 | ▼ 4.5% |
| May | 22 | 18 | ▼ 18.2% |
| June | 21 | 17 | ▼ 19.0% |
| July | 22 | 23 | ▲ 4.5% |
| August | 21 | – | – |
| September | 22 | – | – |
| October | 23 | – | in progress |
| November | 18 | – | – |
| December | 21 | – | – |
| Year to date (Jan–Jul) | 151 | 143 | ▼ 5.3% |
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 | 90.9% | 76.2% | ▼ 16.2% |
| February | 80.0% | 73.7% | ▼ 7.9% |
| March | 85.0% | 90.9% | ▲ 7.0% |
| April | 85.7% | 80.0% | ▼ 6.7% |
| May | 95.2% | 88.9% | ▼ 6.7% |
| June | 90.5% | 88.2% | ▼ 2.5% |
| July | 95.5% | 90.9% | ▼ 4.8% |
| August | 85.0% | – | – |
| September | 83.3% | – | – |
| October | 81.8% | – | in progress |
| November | 82.4% | – | – |
| December | 26.3% | – | – |
| Year-to-date average (Jan–Jul) | 89.0% | 84.1% | ▼ 5.5% |
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 | 1 | 1 | 0.0% |
| February | 0 | 1 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 1 | 1 | 0.0% |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 1 | – | – |
| September | 4 | – | – |
| October | 1 | – | in progress |
| November | 1 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 4 | 4 | 0.0% |
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 94.9% 428
- Cancelled 5.1% 23
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 |
|---|---|---|---|---|
| CGH SDU Congonhas–Deputado Freitas Nobre Airport – Santos Dumont Airport | 366 | 4.7 min | 81.5% | 451 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 13 | 53.9% | 1 |
| November 2024 | 19 | 16 | 75.0% | 3 |
| December 2024 | 19 | 17 | 76.5% | 2 |
| January 2025 | 23 | 22 | 90.9% | 1 |
| February 2025 | 20 | 20 | 80.0% | 0 |
| March 2025 | 21 | 20 | 85.0% | 1 |
| April 2025 | 22 | 21 | 85.7% | 1 |
| May 2025 | 22 | 21 | 95.2% | 1 |
| June 2025 | 21 | 21 | 90.5% | 0 |
| July 2025 | 22 | 22 | 95.5% | 0 |
| August 2025 | 21 | 20 | 85.0% | 1 |
| September 2025 | 22 | 18 | 83.3% | 4 |
| October 2025 | 23 | 22 | 81.8% | 1 |
| November 2025 | 18 | 17 | 82.4% | 1 |
| December 2025 | 21 | 19 | 26.3% | 2 |
| January 2026 | 22 | 21 | 76.2% | 1 |
| February 2026 | 20 | 19 | 73.7% | 1 |
| March 2026 | 22 | 22 | 90.9% | 0 |
| April 2026 | 21 | 20 | 80.0% | 1 |
| May 2026 | 18 | 18 | 88.9% | 0 |
| June 2026 | 17 | 17 | 88.2% | 0 |
| July 2026 | 23 | 22 | 90.9% | 1 |