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Cheap flights from Chicago O'Hare Intl Airport to Athens from £243

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ATH
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from O'Hare Intl to Athens

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Athens (ATH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 November 2025.

Round-trip from

£372

One-way from

£243

Popular in

June

Cheapest in

February

Average price

£470
United Airlines
  • United Airlines
  • 25/11-9/12
  • 4 total stops
  • 37h 18m total
  • Chicago to Athens
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Air Serbia
  • Air Serbia
  • 6/12
  • 1 total stop
  • 25h 45m total
  • Chicago to Athens
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (£203 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£30 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find flight deals from O'Hare Intl to Athens

Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl to Athens
Explore the most affordable flight options available from O'Hare Intl to Athens. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Tue 25/1111:02ORD - ATH
2 stops16h 58mUnited Airlines
Tue 9/1206:25ATH - ORD
2 stops20h 20mUnited Airlines
Deal found 5/11£372
Wed 5/1118:00ORD - ATH
1 stop16h 00mUnited Airlines
Wed 19/1106:15ATH - ORD
2 stops23h 50mUnited Airlines
Deal found 4/11£373
Wed 5/1107:10ORD - ATH
2 stops19h 25mDelta
Tue 18/1113:45ATH - ORD
1 stop32h 35mDelta
Deal found 4/11£374
Wed 5/1118:00ORD - ATH
1 stop16h 00mUnited Airlines
Tue 18/1106:35ATH - ORD
2 stops19h 13mUnited Airlines
Deal found 4/11£375
Mon 10/1111:19ORD - ATH
2 stops18h 16mDelta
Thu 20/1112:50ATH - ORD
1 stop28h 22mDelta
Deal found 7/11£376
Wed 5/1118:00ORD - ATH
1 stop16h 00mUnited Airlines
Wed 12/1106:15ATH - ORD
2 stops25h 28mUnited Airlines
Deal found 4/11£377
Tue 18/1108:00ORD - ATH
2 stops18h 05mUnited Airlines
Tue 25/1106:35ATH - ORD
2 stops20h 04mUnited Airlines
Deal found 6/11£377
Wed 26/1110:46ORD - ATH
2 stops21h 49mDelta
Tue 2/1213:45ATH - ORD
1 stop32h 35mDelta
Deal found 5/11£378
Wed 3/1216:25ORD - ATH
1 stop16h 10mDelta
Mon 8/1203:25ATH - ORD
1 stop19h 45mDelta
Deal found 6/11£379
Tue 2/1218:50ORD - ATH
1 stop34h 05mUnited Airlines
Mon 8/1212:50ATH - ORD
1 stop33h 20mUnited Airlines
Deal found 6/11£380
Tue 30/1221:15ORD - ATH
2 stops30h 45mMultiple Airlines
Tue 13/106:25ATH - ORD
2 stops34h 48mMultiple Airlines
Deal found 6/11£381
Mon 17/1117:08ORD - ATH
2 stops15h 27mDelta
Mon 24/1103:25ATH - ORD
1 stop19h 45mDelta
Deal found 7/11£382

Cheapflights Fare Finder

 
Customise your flight search to find flights from O'Hare Intl to Athens that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 7 November 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Athens that are best for you.

Fly from

O'Hare Intl

Fly to

Athens

Route

Depart

Return

Price

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Wed 18/2

10:11-13:35

2 stops19h 24m

Athens Eleftherios V.

Fri 6/3

06:05-14:20

1 stop16h 15m

£373

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Wed 19/11

11:00-11:35

2 stops16h 35m

Athens Eleftherios V.

Wed 26/11

06:35-17:48

2 stops19h 13m

£374

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Wed 26/11

08:55-16:35

2 stops23h 40m

Athens Eleftherios V.

Tue 2/12

13:45-14:20

1 stop32h 35m

£377

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Wed 3/12

16:00-16:35

2 stops16h 35m

Athens Eleftherios V.

Fri 12/12

06:05-20:05

1 stop22h 00m

£382

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Mon 1/12

08:50-13:00

2 stops20h 10m

Athens Eleftherios V.

Mon 8/12

03:25-15:10

1 stop19h 45m

£382

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Tue 18/11

07:00-10:35

1 stop19h 35m

Athens Eleftherios V.

Mon 24/11

03:25-18:52

2 stops23h 27m

£383

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Tue 30/12

18:50-12:55

1 stop34h 05m

Athens Eleftherios V.

Mon 12/1

12:50-17:48

2 stops36h 58m

£384

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Tue 2/12

10:45-13:00

2 stops18h 15m

Athens Eleftherios V.

Mon 8/12

03:25-15:20

2 stops19h 55m

£390

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Tue 25/11

13:15-13:30

2 stops16h 15m

Athens Eleftherios V.

Tue 2/12

14:10-20:10

2 stops38h 00m

£396

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Sat 7/2

17:30-03:15

1 stop25h 45m

£243

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 18 results
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Best time to book a flight from O'Hare Intl to Athens

Have a flexible travel schedule? Discover the best time to fly to Athens from O'Hare Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Athens

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Athens?

Use this chart to determine the optimal time to book a return flight from O'Hare Intl to Athens. Price data was last updated on 31 October 2025.

To ensure you get the cheapest price possible for a flight from Chicago O'Hare Intl Airport to Athens, you should look to book at least 45 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Athens?

Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Athens (average of £362). Flying from Chicago O'Hare Intl Airport to Athens in June is currently the most expensive (average of £564). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Athens. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Athens from Chicago O'Hare Intl?

    If you book a flight to Athens from Chicago O'Hare Intl, you will be flying to Eleftherios V., which is the city’s only airport. Athens Eleftherios V. (ATH) is located 12.3 mi from the center of Athens. There are 0 flights from Chicago O'Hare Intl to Eleftherios V. per day from 0 different airlines.

  • How long is the flight from Chicago O'Hare Intl Airport to Athens?

    Delta and United Airlines can get you from Chicago O'Hare Intl Airport to Athens in just under 16h 35m. Your travel time can differ by up to 2h 49m. There are 5446 mi between Chicago O'Hare Intl Airport and Athens. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Athens one-way?

    The cheapet airlines for a one-way flight from Chicago O'Hare Intl Airport to Athens are Air Serbia (£243), SWISS (£296), and United Airlines (£306).

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Athens?

    Consider American Airlines (65%), Alaska Airlines (65%) or Finnair (65%) when booking your flight. These represent the most reliable airlines when flying from Chicago O'Hare Intl Airport to Athens.

  • Can I find deals for flights from O'Hare Intl to Athens that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Athens flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Athens?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Athens.

  • Can I find deals for business class flights from O'Hare Intl to Athens?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Athens by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Athens?

    Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Athens (average of £362). Flying from Chicago O'Hare Intl Airport to Athens in June is currently the most expensive (average of £564). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Athens?

Book flights to Athens if you plan to visit one of these locations
Piraeus
Aegina
Glyfada
Hydra
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Can Cheapflights find flights from O'Hare Intl to Athens with no change fees?

Need flexible booking options for your flight to Athens from O'Hare Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from O'Hare Intl to Athens become cheaper?

Yes! Start tracking prices for O'Hare Intl to Athens flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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