Is ORD–ATH running on time right now?
Mostly on schedule. The departure side at ORD is the weaker end, route health score 76/100. The airports section above carries the live status and delay window at both ends.
live
Direct flights from Chicago (ORD) to Athens (ATH) run nonstop between the two airports. The nonstop covers 8,770 km, an estimated 11 hours 45 minutes in the air.
ORD
Chicago
busy · +25
ATH
Athens
smooth · +0
8,770 km · ~11h 45m est.
Running clean · 0 airlines · nonstop
76 / 100
route health from live ORD and ATH delay boards
Flight time~11h 45mestimated from route distance
Airports right now
live boardsWeather lens
Conditions are tightest at ATH: a 49% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +12 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →
next sweep in 120s
How the Chicago to Athens route actually runs
Pro Flight Search records official board updates for nonstop ORD to ATH flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search: Chicago (ORD) to Athens (ATH) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ORD-ATH
ORD to ATH questions
How long is the flight from ORD to ATH?
Great-circle distance is 8,770 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 649–782 min gate-to-gate on this route.
What does the route health score measure?
A blend of departure-side delay at ORD and arrival-side delay at ATH, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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