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Cheap flights from Athens to Chicago O'Hare Intl Airport from £409

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/9. Fares are subject to change and may not be available on all flights or dates of travel.
ATH — ORD
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Athens to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Athens (ATH) to O'Hare Intl (ORD). 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 17 September 2025.

Round-trip from

£409

Popular in

October

Cheapest in

February

Average price

£453
British Airways
  • British Airways
  • 7/10-5/11
  • 3 total stops
  • 58h 28m total
  • Athens to Chicago
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Highest demand for flights based on searches. 2% potential increase in price (£7 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Athens to O'Hare Intl

Cheapest flights from Athens to O'Hare Intl
Explore the most affordable flight options available from Athens to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Mon 22/908:30ATH - ORD
1 stop14h 20mBritish Airways
Sun 5/1016:55ORD - ATH
Nonstop10h 15mBritish Airways
Deal found 15/9£409
Thu 25/907:55ATH - ORD
2 stops23h 22mBritish Airways
Sat 1/1116:52ORD - ATH
1 stop35h 08mBritish Airways
Deal found 15/9£414
Tue 14/1016:00ATH - ORD
1 stop15h 30mUnited Airlines
Tue 6/108:55ORD - ATH
2 stops19h 05mUnited Airlines
Deal found 16/9£416
Wed 17/1212:50ATH - ORD
2 stops18h 53mUnited Airlines
Wed 31/1210:35ORD - ATH
2 stops22h 00mUnited Airlines
Deal found 16/9£417
Wed 15/1006:30ATH - ORD
2 stops17h 25mSWISS
Thu 15/117:50ORD - ATH
2 stops14h 50mSWISS
Deal found 15/9£418
Mon 13/1020:20ATH - ORD
1 stop28h 40mBritish Airways
Sat 27/1213:34ORD - ATH
2 stops27h 51mBritish Airways
Deal found 16/9£420
Wed 8/1020:05ATH - ORD
2 stops28h 00mBritish Airways
Wed 15/1013:43ORD - ATH
2 stops19h 02mBritish Airways
Deal found 15/9£421
Tue 7/1020:00ATH - ORD
2 stops28h 13mBritish Airways
Thu 20/1114:23ORD - ATH
2 stops20h 27mBritish Airways
Deal found 16/9£422
Tue 7/1017:40ATH - ORD
2 stops30h 33mBritish Airways
Sat 27/1211:50ORD - ATH
2 stops20h 00mBritish Airways
Deal found 16/9£424
Wed 1/1020:05ATH - ORD
2 stops29h 18mBritish Airways
Tue 2/1220:40ORD - ATH
1 stop14h 50mBritish Airways
Deal found 16/9£426
Fri 10/1020:50ATH - ORD
2 stops27h 15mBritish Airways
Mon 29/1213:51ORD - ATH
2 stops21h 04mBritish Airways
Deal found 16/9£428
Tue 30/906:55ATH - ORD
2 stops22h 06mBritish Airways
Mon 8/1218:45ORD - ATH
1 stop13h 05mBritish Airways
Deal found 16/9£431

Cheapflights Fare Finder

 
Customise your flight search to find flights from Athens to O'Hare Intl 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 17 September 2025.
Use the filters below to find and compare flights from Athens to Chicago O'Hare Intl Airport that are best for you.

Fly from

Athens

Fly to

O'Hare Intl

Route

Depart

Return

Price

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Sun 23/11

14:50-15:25

1 stop32h 35m

Chicago O'Hare Intl

Mon 22/12

13:51-18:55

2 stops21h 04m

£417

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Tue 14/10

16:00-23:30

1 stop15h 30m

Chicago O'Hare Intl

Wed 7/1

13:00-13:20

2 stops16h 20m

£417

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Wed 1/10

05:35-17:23

2 stops19h 48m

Chicago O'Hare Intl

Thu 4/12

20:45-01:25

1 stop20h 40m

£426

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Fri 10/10

20:50-16:05

2 stops27h 15m

Chicago O'Hare Intl

Mon 29/12

13:51-18:55

2 stops21h 04m

£428

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Tue 30/9

06:55-21:01

2 stops22h 06m

Chicago O'Hare Intl

Thu 4/12

21:45-18:50

1 stop13h 05m

£431

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Thu 30/10

07:05-17:20

1 stop17h 15m

Chicago O'Hare Intl

Thu 6/11

08:50-18:05

2 stops25h 15m

£438

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Fri 31/10

13:45-15:20

1 stop32h 35m

Chicago O'Hare Intl

Sat 20/6

12:10-10:00

1 stop13h 50m

£442

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Wed 15/10

10:25-23:15

2 stops20h 50m

Chicago O'Hare Intl

Sat 10/1

10:54-13:10

2 stops18h 16m

£447

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Tue 7/10

20:00-16:13

2 stops28h 13m

Chicago O'Hare Intl

Mon 29/12

13:51-15:50

2 stops17h 59m

£450

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Wed 15/10

06:30-15:55

2 stops17h 25m

Chicago O'Hare Intl

Wed 7/1

15:45-16:40

2 stops16h 55m

£451

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 22 results
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Best time to book a flight from Athens to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Athens 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 Athens to Chicago O'Hare Intl Airport

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

Use this chart to determine the optimal time to book a return flight from Athens to O'Hare Intl. Price data was last updated on 12 September 2025.

To ensure you get the cheapest price possible for a flight from Athens to Chicago O'Hare Intl Airport, you should look to book at least 89 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 Athens to Chicago O'Hare Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Athens to Chicago O'Hare Intl Airport (average of £595). Flying from Athens to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £843). 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.

What is the cheapest time of day to fly from ATH to ORD?

Find hourly flight availability from Athens to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Athens to Chicago O'Hare Intl Airport as you normally would.

How much does it cost for a return flight from Athens to Chicago O'Hare Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Athens to O'Hare Intl. 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 from for flights from Athens to Chicago O'Hare Intl?

    Athens Eleftherios V. (ATH) is the airport you will fly out of if you book a flight from Athens to Chicago O'Hare Intl. You should not have trouble finding flights to Chicago O'Hare Intl from Eleftherios V.; the airport handles an average of 7 outbound flights to Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Athens airport to Chicago O'Hare Intl. It is only a 12.3 mi journey to Eleftherios V. (ATH) from Athens’s city center.

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

    A quick flight from Athens to Chicago O'Hare Intl Airport can take about 15h 30m. British Airways provides one of the quickest options available for as low as £417. There are 5446 mi between Athens and Chicago O'Hare Intl Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    No one likes to see their flight delayed. When booking a flight from Athens to Chicago O'Hare Intl Airport consider choosing United Airlines (80%), Lufthansa (80%) or American Airlines (79%) as they are the most reliable in getting you off to your destination on time.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Athens to O'Hare Intl 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 Athens to Chicago O'Hare Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Athens to Chicago O'Hare Intl Airport (average of £595). Flying from Athens to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £843). 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 Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Downers Grove
Elk Grove Village
Rosemont

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