Cancellations on 4 Sept

1. 1 DTW Detroit 1.5%of 2978usually 0.5% 44
2. 2 IST Istanbul 2.6%of 821usually 2.6% 21
3. 3 DEL New Delhi 1.1%of 1798usually 0.9% 19
4. 4 AMS Amsterdam 2.7%of 679usually 1.6% 18
5. 5 YYZ Toronto 2.8%of 575usually 4.1% 16
6. 6 FUK Fukuoka 5.8%of 260usually 4.4% 15
7. 7 IAD Washington 3.5%of 427usually 3.1% 15
8. 8 DCA Washington 3.1%of 482usually 2.6% 15
9. 9 LGA New York 2.3%of 555usually 6.4% 13
10. 10 KMI Miyazaki 49 departures seen 12
11. 11 YUL Montréal 4.0%of 299usually 5.2% 12
12. 12 FRA Frankfurt am Main 1.5%of 743usually 1.7% 11
13. 13 BOM Mumbai 2.3%of 426usually 1.6% 10
14. 14 ITM Osaka 4.9%of 185usually 2.0% 9
15. 15 CGH São Paulo 3.1%of 286usually 2.4% 9
16. 16 AGP Málaga 2.2%of 409usually 0.6% 9
17. 17 CAN Guangzhou 1.1%of 795usually 1.0% 9
18. 18 ORD Chicago 0.6%of 1503usually 1.6% 9
19. 19 PEK Beijing 1.3%of 639usually 1.8% 8
20. 20 CUN Cancún 3.9%of 180usually 3.9% 7
21. 21 AKL Auckland 3.2%of 218usually 1.6% 7
22. 22 LIM Lima 2.4%of 294usually 2.5% 7
23. 23 ATL Atlanta 0.6%of 1094usually 0.3% 7
24. 24 PVD Providence/Warwick 71 departures seen 6
25. 25 CJU Jeju City 2.3%of 259usually 0.9% 6
26. 26 FLL Fort Lauderdale 1.9%of 312usually 2.2% 6
27. 27 HPN White Plains 79 departures seen 5
28. 28 WLG Wellington 101 departures seen 5
29. 29 CNF Belo Horizonte 3.0%of 168usually 1.7% 5
30. 30 MEL Melbourne 1.5%of 342usually 1.0% 5
31. 31 OSL Oslo 1.4%of 365usually 3.1% 5
32. 32 SAN San Diego 1.4%of 369usually 0.5% 5
33. 33 SYD Sydney 1.3%of 391usually 1.3% 5
34. 34 KUL Kuala Lumpur 1.0%of 525usually 0.7% 5
35. 35 DXB Dubai 0.9%of 528usually 0.8% 5
36. 36 JFK New York 0.8%of 636usually 3.0% 5
37. 37 HND Tokyo 0.7%of 667usually 1.9% 5
38. 38 LAX Los Angeles 0.7%of 765usually 0.7% 5
39. 39 BER Berlin 1.7%of 238usually 1.8% 4
40. 40 MAN Manchester 1.6%of 245usually 1.7% 4

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.

Fri 4 Sept: 559 cancelled of 59,789 tracked (0.9%) across 220 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.