Cancellations on 26 Aug

1. 1 OKA Naha 63.7%of 234usually 7.7% 149
2. 2 FUK Fukuoka 16.9%of 261usually 3.2% 44
3. 3 HND Tokyo 3.7%of 671usually 1.7% 25
4. 4 KOJ Kagoshima 86 departures seen 23
5. 5 IST Istanbul 2.9%of 801usually 2.9% 23
6. 6 TPE Taipei 4.2%of 335usually 1.2% 14
7. 7 KIX Osaka 5.3%of 246usually 0.8% 13
8. 8 ISG Ishigaki 29 departures seen 12
9. 9 BCN Barcelona 0.8%of 1523usually 1.4% 12
10. 10 DEL New Delhi 0.8%of 1547usually 0.9% 12
11. 11 YUL Montréal 3.8%of 292usually 3.9% 11
12. 12 CUN Cancún 5.9%of 170usually 2.6% 10
13. 13 IAD Washington 2.6%of 381usually 3.3% 10
14. 14 LHR London 1.5%of 672usually 0.8% 10
15. 15 NGO Nagoya 117 departures seen 9
16. 16 LIM Lima 3.1%of 286usually 4.2% 9
17. 17 LGA New York 1.6%of 550usually 1.8% 9
18. 18 FRA Frankfurt am Main 1.3%of 713usually 1.3% 9
19. 19 CAN Guangzhou 1.1%of 788usually 1.2% 9
20. 20 ITM Osaka 4.0%of 199usually 1.6% 8
21. 21 NRT Tokyo 2.3%of 308usually 1.1% 7
22. 22 JED Jeddah 1.7%of 409usually 1.6% 7
23. 23 FLL Fort Lauderdale 2.2%of 269usually 1.9% 6
24. 24 DCA Washington 1.3%of 454usually 2.9% 6
25. 25 BOS Boston 1.0%of 605usually 3.1% 6
26. 26 JFK New York 1.0%of 619usually 2.2% 6
27. 27 AMS Amsterdam 0.9%of 669usually 1.3% 6
28. 28 PEK Beijing 0.9%of 679usually 1.9% 6
29. 29 FCO Rome 1.0%of 491usually 1.0% 5
30. 30 CDG Paris 0.7%of 669usually 1.2% 5
31. 31 GMP Seoul 2.2%of 184usually 1.4% 4
32. 32 HEL Helsinki 1.9%of 211usually 1.5% 4
33. 33 VIE Vienna 1.2%of 346usually 1.1% 4
34. 34 YVR Vancouver 1.1%of 364usually 2.1% 4
35. 35 MCO Orlando 1.0%of 383usually 0.7% 4
36. 36 BOM Mumbai 0.9%of 432usually 1.4% 4
37. 37 SIN Singapore 0.9%of 470usually 0.3% 4
38. 38 KUL Kuala Lumpur 0.8%of 505usually 0.7% 4
39. 39 YYZ Toronto 0.7%of 545usually 2.6% 4
40. 40 LAX Los Angeles 0.6%of 684usually 0.8% 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 26 Aug: 634 cancelled of 57,379 tracked (1.1%) across 248 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.