Cancellations on 28 Aug

1. 1 ZRH Zurich 18.8%of 399usually 2.6% 75
2. 2 JFK New York 4.8%of 662usually 3.3% 32
3. 3 FRA Frankfurt am Main 4.3%of 740usually 1.5% 32
4. 4 AMS Amsterdam 4.1%of 691usually 1.4% 28
5. 5 LGA New York 4.4%of 572usually 4.7% 25
6. 6 EWR New York 4.3%of 556usually 3.9% 24
7. 7 LHR London 3.4%of 682usually 1.1% 23
8. 8 YYZ Toronto 3.5%of 567usually 2.7% 20
9. 9 IST Istanbul 2.3%of 828usually 2.8% 19
10. 10 DEL New Delhi 1.1%of 1590usually 0.9% 17
11. 11 DCA Washington 3.2%of 468usually 3.2% 15
12. 12 IAD Washington 3.3%of 425usually 2.9% 14
13. 13 BER Berlin 5.5%of 237usually 1.5% 13
14. 14 BCN Barcelona 0.9%of 1521usually 1.2% 13
15. 15 BOS Boston 1.9%of 637usually 3.2% 12
16. 16 CDG Paris 1.7%of 691usually 1.4% 12
17. 17 DUS Düsseldorf 4.0%of 249usually 0.9% 10
18. 18 FLL Fort Lauderdale 3.2%of 315usually 2.1% 10
19. 19 YUL Montréal 3.2%of 311usually 4.2% 10
20. 20 MUC Munich 2.1%of 476usually 0.7% 10
21. 21 SFO San Francisco 0.5%of 1955usually 0.6% 10
22. 22 PEK Beijing 1.3%of 683usually 1.9% 9
23. 23 DTW Detroit 0.4%of 2478usually 0.4% 9
24. 24 NCE Nice 3.7%of 215usually 2.1% 8
25. 25 AUS Austin 2.5%of 323usually 0.8% 8
26. 26 MXP Milan 2.4%of 333usually 2.2% 8
27. 27 MEL Melbourne 2.3%of 341usually 1.3% 8
28. 28 PMI Palma de Mallorca 1.2%of 657usually 0.5% 8
29. 29 ORD Chicago 0.5%of 1467usually 0.4% 8
30. 30 VCE Venezia 140 departures seen 7
31. 31 TIA Tirana 4.6%of 151usually 0.4% 7
32. 32 STR Stuttgart 3.4%of 207usually 1.5% 7
33. 33 MAN Manchester 2.7%of 262usually 1.4% 7
34. 34 LIM Lima 2.4%of 292usually 3.8% 7
35. 35 IAH Houston 1.2%of 608usually 0.5% 7
36. 36 CLT Charlotte 1.0%of 697usually 0.7% 7
37. 37 CAN Guangzhou 0.9%of 819usually 1.0% 7
38. 38 LAX Los Angeles 0.9%of 766usually 0.9% 7
39. 39 SOF Sofia 118 departures seen 6
40. 40 GVA Geneva 128 departures seen 6

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 28 Aug: 851 cancelled of 62,702 tracked (1.4%) across 246 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.