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Kos flight delays: the record, day by day

Eurocontrol attributes air-traffic delay to Kos on the days it happens, with the cause. On its 25 worst days since 2019 the airport lost 13,423 minutes of arrival delay, mostly to atc capacity and aerodrome capacity. Days with nothing logged are a strong point for any passenger whose flight was late for another reason.

Was your Kos flight 3 hours late?

The day the flight was due to leave, in local time where it left. For an overnight flight, that is the evening you set off.

Same flight number twice that day? Add the departure code

Free. No account. The airline is not contacted.

Worst days on record

DateDelay minLateCause
2 July 20241,55830Aerodrome capacity
18 October 202076714ATC capacity
26 July 202572216ATC capacity
1 September 202469218ATC staffing
19 September 20256697Weather
1 July 202256113ATC capacity
5 July 202551113ATC capacity
10 July 202249811ATC capacity
9 August 202549312ATC capacity
4 July 202547511ATC capacity
26 May 202646913Aerodrome capacity
29 July 202546813ATC capacity
15 August 202546012ATC capacity
12 July 20264608ATC equipment
12 August 202544813ATC capacity

Most recent days with delay logged

DateDelay minLateCause
29 September 20262076ATC capacity
28 September 2026451ATC capacity
27 September 20261364ATC capacity
26 September 2026522ATC capacity
25 September 2026633ATC capacity
24 September 2026170ATC capacity
23 September 2026522ATC capacity
22 September 2026552ATC capacity
21 September 2026150ATC capacity
20 September 2026884ATC capacity
19 September 2026932ATC capacity
18 September 2026331ATC capacity
17 September 20261333ATC capacity
16 September 20261574ATC capacity
15 September 20261454Aerodrome capacity

Data to 30 September 2026. Eurocontrol publishes about a month in arrears.

What usually goes wrong at Kos

ATC capacity74%
Aerodrome capacity12%
ATC equipment7%
ATC staffing6%

Share of logged delay minutes across the worst and most recent days shown above. Weather, ATC staffing, ATC capacity and equipment failures are the causes airlines most often plead as extraordinary; airport capacity and unspecified delay are arguable.

Questions

Is a delay at Kos caused by weather always an extraordinary circumstance?

No. The airline must show that the weather actually affected your flight and that it took all reasonable measures. Eurocontrol logs weather delay at Kos on specific days; if your day is not one of them, the weather defence has nothing behind it. If it is, the airline still has to connect it to your flight.

How do I find out if my Kos flight was delayed 3 hours?

Enter the flight number and date in the checker above. It pulls the recorded arrival time, works out the delay against the schedule, and shows what Eurocontrol and the airport weather logged for Kos that day.

Which airlines' passengers can claim after a Kos delay?

Any airline departing Kos is covered by EU261 regardless of nationality. Arrivals are covered when the airline is a UK or EU carrier.

Source: Eurocontrol Performance Review Unit, airport arrival ATFM delay by cause, daily. See also your rights and the compensation calculator.