Cancellations on 25 Aug

1. 1 OKA Naha 35.4%of 192usually 2.7% 68
2. 2 IST Istanbul 3.8%of 795usually 3.0% 30
3. 3 HND Tokyo 4.0%of 669usually 1.5% 27
4. 4 PEK Beijing 3.4%of 671usually 2.0% 23
5. 5 KOJ Kagoshima 83 departures seen 20
6. 6 FUK Fukuoka 6.6%of 259usually 2.0% 17
7. 7 BOS Boston 2.4%of 583usually 3.3% 14
8. 8 CAN Guangzhou 1.7%of 782usually 1.2% 13
9. 9 EZE Buenos Aires 7.3%of 150usually 2.9% 11
10. 10 SYD Sydney 3.3%of 335usually 1.7% 11
11. 11 YUL Montréal 3.4%of 266usually 3.8% 9
12. 12 BNE Brisbane 3.2%of 277usually 2.0% 9
13. 13 NRT Tokyo 3.0%of 302usually 1.0% 9
14. 14 DEL New Delhi 0.6%of 1523usually 0.9% 9
15. 15 MXP Milan 2.7%of 301usually 2.2% 8
16. 16 BRC San Carlos de Bariloche 26 departures seen 7
17. 17 ITM Osaka 3.5%of 198usually 1.4% 7
18. 18 KIX Osaka 2.9%of 239usually 0.5% 7
19. 19 TPE Taipei 1.9%of 360usually 1.0% 7
20. 20 KUL Kuala Lumpur 1.3%of 544usually 0.7% 7
21. 21 CDG Paris 1.1%of 643usually 1.2% 7
22. 22 ISG Ishigaki 30 departures seen 6
23. 23 LIM Lima 2.2%of 276usually 4.2% 6
24. 24 MEL Melbourne 2.1%of 289usually 1.3% 6
25. 25 DCA Washington 1.3%of 453usually 3.2% 6
26. 26 FCO Rome 1.2%of 492usually 1.0% 6
27. 27 FRA Frankfurt am Main 0.9%of 685usually 1.3% 6
28. 28 BCN Barcelona 0.4%of 1468usually 1.9% 6
29. 29 HPN White Plains 59 departures seen 5
30. 30 ALC Alicante 1.9%of 269usually 0.9% 5
31. 31 BOM Mumbai 1.1%of 448usually 1.5% 5
32. 32 LGA New York 0.9%of 534usually 1.8% 5
33. 33 HGH Hangzhou 0.6%of 881usually 0.4% 5
34. 34 LIS Lisbon 1.4%of 280usually 0.5% 4
35. 35 YVR Vancouver 1.1%of 353usually 2.1% 4
36. 36 YYZ Toronto 1.1%of 356usually 2.9% 4
37. 37 HKG Hong Kong 0.9%of 439usually 0.4% 4
38. 38 LAX Los Angeles 0.8%of 530usually 0.8% 4
39. 39 BIL Billings 45 departures seen 3
40. 40 CUN Cancún 1.8%of 169usually 2.3% 3

Ranked by cancelled departures on each airport's own board that day. Orange marks a cancellation rate at least double what that airport usually runs over the past fortnight.

Tue 25 Aug: 536 cancelled of 55,039 tracked (1.0%) across 253 airports

Each bar is one completed day across every airport board that published cancellations that day. Tap a bar for that day's full ranking. The set of counted airports shifts as boards change behaviour, so read the rate alongside the raw count; a gap means we have no usable record for that day. The outlined bar is the day you are viewing.

Some airport boards remove cancelled flights instead of labelling them, so there is no cancellation figure to read at these airports. The busiest of them:

A handful of other boards label routine schedule padding as cancelled, and do so to 15 to 27% of departures every day. Those airports are left out too.