Cancellations on 30 Sept

1. 1 IST Istanbul 5.1%of 768usually 4.1% 39
2. 2 LIN Milan 18.8%of 154usually 2.9% 29
3. 3 FCO Rome 5.7%of 491usually 1.6% 28
4. 4 CDG Paris 3.0%of 627usually 1.3% 19
5. 5 MXP Milan 5.1%of 313usually 1.4% 16
6. 6 BNE Brisbane 4.6%of 327usually 3.7% 15
7. 7 FRA Frankfurt am Main 2.0%of 740usually 0.8% 15
8. 8 DEL New Delhi 0.9%of 1599usually 0.9% 15
9. 9 AMS Amsterdam 2.1%of 669usually 2.1% 14
10. 10 PEK Beijing 2.0%of 697usually 1.4% 14
11. 11 YYZ Toronto 2.3%of 514usually 2.1% 12
12. 12 ZRH Zurich 2.9%of 376usually 0.8% 11
13. 13 TLV Tel Aviv 3.4%of 290usually 0.6% 10
14. 14 CNF Belo Horizonte 5.4%of 168usually 5.3% 9
15. 15 BUD Budapest 5.1%of 175usually 1.3% 9
16. 16 VCE Venezia 135 departures seen 8
17. 17 CUN Cancún 5.2%of 155usually 4.5% 8
18. 18 BOM Mumbai 1.9%of 426usually 2.0% 8
19. 19 LHR London 1.2%of 657usually 0.9% 8
20. 20 NAP Napoli 144 departures seen 7
21. 21 CGH São Paulo 2.6%of 273usually 3.2% 7
22. 22 STN London 2.6%of 266usually 0.7% 7
23. 23 OKA Naha 3.1%of 191usually 2.1% 6
24. 24 YUL Montréal 2.3%of 260usually 2.1% 6
25. 25 IAD Washington 1.6%of 374usually 1.6% 6
26. 26 HND Tokyo 0.9%of 669usually 3.3% 6
27. 27 LAX Los Angeles 0.9%of 691usually 0.7% 6
28. 28 BCN Barcelona 0.4%of 1410usually 1.9% 6
29. 29 HPN White Plains 54 departures seen 5
30. 30 GVA Geneva 109 departures seen 5
31. 31 OTP Bucharest 2.4%of 211usually 0.5% 5
32. 32 BRU Brussels 2.0%of 246usually 1.1% 5
33. 33 DUS Düsseldorf 2.0%of 256usually 0.6% 5
34. 34 LIM Lima 1.8%of 278usually 3.1% 5
35. 35 NRT Tokyo 1.6%of 316usually 3.3% 5
36. 36 VIE Vienna 1.4%of 346usually 0.5% 5
37. 37 ORD Chicago 0.4%of 1415usually 2.4% 5
38. 38 EBB Entebbe 49 departures seen 4
39. 39 FLL Fort Lauderdale 1.8%of 226usually 1.6% 4
40. 40 FUK Fukuoka 1.6%of 248usually 2.9% 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.

Wed 30 Sept: 521 cancelled of 49,153 tracked (1.1%) across 207 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. Showing the most recent 90 days; the full series is in the JSON feed.

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.