These monthly airport performance reports rank qualified airports using aggregated departure delay and cancellation data from AeroCorner’s airport analytics pipeline. Airports must meet a minimum tracked-flight threshold to appear in the rankings. For continuously updated 24-hour, 7-day, and 30-day rankings, see the live airport delays dashboard.
Airport Punctuality Report — September 2026
In September 2026, Bucharest (OTP) ranked as the most punctual among qualified airports, with departures averaging 6 minutes early. A total of 19 departures were cancelled, representing 0.2% of tracked flights. This monthly view reflects tracked data through September 30, 2026.
Chiang Mai (CNX) ranked second while handling a comparable number of tracked departures, with 5,138 flights compared with 9,598 at Bucharest (OTP). Despite the similar traffic levels, Bucharest (OTP) remained the most punctual airport for seven straight months.
Airport Punctuality Rankings — September 2026
- Average delay
- 6m 6 min early
- Cancelled
- 19 (0.2%)
- Average delay
- 3m 3 min early
- Cancelled
- 1054 (20.5%)
- Average delay
- 2m 2 min early
- Cancelled
- 5326 (31.2%)
- Average delay
- 1m 1 min early
- Cancelled
- 29 (0.6%)
- Average delay
- 1m 1 min early
- Cancelled
- 2491 (28.2%)
- Average delay
- 1m 1 min early
- Cancelled
- 107 (0.7%)
- Average delay
- 1m 1 min early
- Cancelled
- 141 (2.4%)
- Average delay
- 1m 1 min early
- Cancelled
- 39 (0.9%)
- Average delay
- On time
- Cancelled
- 102 (1.4%)
- Average delay
- On time
- Cancelled
- 12 (0.4%)
| Rank | Airport | Average Delay | Cancelled |
|---|---|---|---|
| 1 |
Bucharest (OTP)
(Romania)
|
6m 6 min early | 19 (0.2%) |
| 2 |
Chiang Mai (CNX)
(Thailand)
|
3m 3 min early | 1054 (20.5%) |
| 3 |
Bangkok (DMK)
(Thailand)
|
2m 2 min early | 5326 (31.2%) |
| 4 |
Trondheim (TRD)
(Norway)
|
1m 1 min early | 29 (0.6%) |
| 5 |
Phuket (HKT)
(Thailand)
|
1m 1 min early | 2491 (28.2%) |
| 6 |
Calgary (YYC)
(Canada)
|
1m 1 min early | 107 (0.7%) |
| 7 |
Astana (NQZ)
(Kazakhstan)
|
1m 1 min early | 141 (2.4%) |
| 8 |
Stavanger (SVG)
(Norway)
|
1m 1 min early | 39 (0.9%) |
| 9 |
Bergen (BGO)
(Norway)
|
On time | 102 (1.4%) |
| 10 |
Bodø (BOO)
(Norway)
|
On time | 12 (0.4%) |
Most Punctual Airports by Month
Month-by-month leaders for this ranking, based on daily rollup data and minimum tracked-flight thresholds.
- Average delay
- 6m 6 min early
- Cancelled
- 19 (0.2%)
- Average delay
- 3m 3 min early
- Cancelled
- 15 (0.2%)
- Average delay
- 4m 4 min early
- Cancelled
- 24 (0.2%)
- Average delay
- 7m 7 min early
- Cancelled
- 21 (0.2%)
- Average delay
- 9m 9 min early
- Cancelled
- 16 (0.2%)
- Average delay
- 8m 8 min early
- Cancelled
- 57 (0.7%)
- Average delay
- 9m 9 min early
- Cancelled
- 488 (4.5%)
- Average delay
- 1m 1 min early
- Cancelled
- 0 (0.0%)
- Average delay
- On time
- Cancelled
- 462 (2.0%)
| Month | Airport | Average Delay | Cancelled |
|---|---|---|---|
| Sep 2026 |
Bucharest (OTP)
(Romania)
|
6m 6 min early | 19 (0.2%) |
| Aug 2026 |
Bucharest (OTP)
(Romania)
|
3m 3 min early | 15 (0.2%) |
| Jul 2026 |
Bucharest (OTP)
(Romania)
|
4m 4 min early | 24 (0.2%) |
| Jun 2026 |
Bucharest (OTP)
(Romania)
|
7m 7 min early | 21 (0.2%) |
| May 2026 |
Bucharest (OTP)
(Romania)
|
9m 9 min early | 16 (0.2%) |
| Apr 2026 |
Bucharest (OTP)
(Romania)
|
8m 8 min early | 57 (0.7%) |
| Mar 2026 |
Bucharest (OTP)
(Romania)
|
9m 9 min early | 488 (4.5%) |
| Feb 2026 |
Naha (OKA)
(Japan)
|
1m 1 min early | 0 (0.0%) |
| Jan 2026 |
Bangalore (BLR)
(India)
|
On time | 462 (2.0%) |