Chicago to Athens (ORD-ATH): nonstop upgrade & award space

United Airlines and American Airlines fly the ORD to ATH nonstop about 4 times a week. The timetable below shows the nonstop scheduled at 10h 15m to 10h 25m for the 5,450 miles. 2LNR checks confirmed upgrade and award space on American Airlines flights on this route, so you can see which departures have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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4
Flights a week, 4-week average
10h 15m to 10h 25m
Scheduled flight time
5,450 mi
Nonstop distance
Free
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Chicago to Athens flight schedule

Scheduled nonstop departures for ORD to ATH starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Chicago (ORD) to Athens (ATH)
Date Flight Airline Departs ORD Arrives ATH Duration Aircraft
UA 422United Airlines16:4511:0010h 15mBoeing 787-10 Dreamliner
AA 160American Airlines17:1511:3010h 15mBoeing 787-8 Dreamliner
UA 422United Airlines16:2010:3510h 15mBoeing 787-10 Dreamliner
AA 160American Airlines17:1511:3510h 20mBoeing 787-8 Dreamliner
UA 422United Airlines16:1010:3510h 25mBoeing 787-8 Dreamliner
UA 422United Airlines16:1010:3510h 25mBoeing 787-8 Dreamliner
UA 422United Airlines16:1010:3510h 25mBoeing 787-8 Dreamliner
UA 422United Airlines16:1010:3510h 25mBoeing 787-8 Dreamliner
UA 422United Airlines16:1010:3510h 25mBoeing 787-8 Dreamliner

Showing all 9 scheduled ORD to ATH departures across 7 days with service, starting October 22, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every ORD to ATH date on the interactive map

Aircraft on the Chicago to Athens nonstop

In the schedule table on this page, United Airlines flies the Boeing 787-8 Dreamliner and the Boeing 787-10 Dreamliner, and American Airlines flies the Boeing 787-8 Dreamliner. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on ORD to ATH departures

2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for Chicago to Athens to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

American Airlines award space was open on all 5 Chicago to Athens departure dates from October 19 to November 1 that 2LNR checked in the 7 days to October 19, 2026.

See real availability

Confirmed upgrade or award seats by date on the ORD to ATH departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

Plan on the map

See ORD to ATH on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Chicago to Athens nonstop

Carriers operating ORD to ATH nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See ORD to ATH on the interactive map →

Frequently asked questions about ORD to ATH

How long is the flight from Chicago (ORD) to Athens (ATH)?
Scheduled flight times from Chicago (ORD) to Athens (ATH) run from 10h 15m to 10h 25m across the departures in the schedule table on this page. The nonstop covers about 5,450 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from ORD to ATH?
United Airlines and American Airlines fly ORD to ATH nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines.
How many flights a week are there from ORD to ATH?
About 4 nonstop flights a week run between Chicago (ORD) and Athens (ATH) in the current schedule, operated by United Airlines and American Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from ORD to ATH depart?
Scheduled ORD to ATH nonstops in the next 7 days with service leave between 16:10 and 17:15, local time at Chicago. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate ORD to ATH nonstop?
In the schedule table on this page, ORD to ATH nonstops fly as UA 422 on United Airlines and AA 160 on American Airlines. The table lists each departure by date with its times and aircraft.
How do I check upgrade or award availability on ORD to ATH?
Open the ORD to ATH route on the interactive map or the matrix to see confirmed upgrade and award space by date on American Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss ORD to ATH upgrade or award space

See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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