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Cheap flights from Athens to Chicago O'Hare Intl Airport from £293

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
ATH — ORD
18 Jul — 25 Jul1
1 adult

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 13 July 2025.

Round-trip from

£428

One-way from

£293

Popular in

October

Cheapest in

February

Average price

£505
KLM
  • KLM
  • 6/9-14/9
  • 2 total stops
  • 44h 55m total
  • Athens to Chicago
12/8
  • 12/8
  • 1 total stop
  • 25h 25m total
  • Athens to Chicago
Highest demand for flights based on searches. 6% potential increase in price (£24 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Average for round-trip flights in July 2025

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 13 July 2025.

Sat 6/913:40ATH - ORD
1 stop32h 30mKLM
Sun 14/916:20ORD - ATH
1 stop12h 25mKLM
Deal found 11/7£428
Fri 21/1114:05ATH - ORD
2 stops27h 55mUnited Airlines
Thu 11/1216:10ORD - ATH
1 stop12h 45mUnited Airlines
Deal found 12/7£428
Tue 26/806:00ATH - ORD
2 stops18h 13mDelta
Thu 4/917:10ORD - ATH
1 stop22h 05mDelta
Deal found 12/7£430
Sun 23/1119:30ATH - ORD
1 stop29h 15mScandinavian Airlines
Sun 14/1219:20ORD - ATH
1 stop34h 00mScandinavian Airlines
Deal found 12/7£432
Thu 6/1113:00ATH - ORD
2 stops19h 17mMultiple Airlines
Fri 14/1120:45ORD - ATH
1 stop14h 30mMultiple Airlines
Deal found 12/7£434
Mon 24/1113:10ATH - ORD
1 stop14h 55mLufthansa
Sun 14/1218:25ORD - ATH
1 stop14h 10mLufthansa
Deal found 12/7£436
Sat 25/1022:00ATH - ORD
1 stop21h 05mTurkish Airlines
Wed 3/1211:50ORD - ATH
1 stop16h 30mTurkish Airlines
Deal found 11/7£440
Sun 19/1006:30ATH - ORD
1 stop14h 50mAustrian Airlines
Fri 21/1116:20ORD - ATH
1 stop24h 00mAustrian Airlines
Deal found 13/7£448
Mon 6/1019:30ATH - ORD
1 stop24h 20mBritish Airways
Mon 13/1017:15ORD - ATH
Nonstop9h 55mBritish Airways
Deal found 11/7£451
Fri 5/909:10ATH - ORD
2 stops19h 13mVirgin Atlantic
Sun 21/907:00ORD - ATH
2 stops19h 55mVirgin Atlantic
Deal found 12/7£471

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 13 July 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.

Sat 6/9

13:40-14:10

1 stop32h 30m

Chicago O'Hare Intl

Sun 14/9

16:20-12:45

1 stop12h 25m

£428

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Fri 21/11

14:05-10:00

2 stops27h 55m

Chicago O'Hare Intl

Thu 11/12

16:10-12:55

1 stop12h 45m

£428

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Tue 26/8

06:00-20:23

2 stops22h 23m

Chicago O'Hare Intl

Thu 4/9

14:00-17:05

2 stops19h 05m

£430

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Sun 23/11

19:30-16:45

1 stop29h 15m

Chicago O'Hare Intl

Sun 14/12

19:20-13:20

1 stop34h 00m

£432

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Thu 6/11

13:00-00:17

2 stops19h 17m

Chicago O'Hare Intl

Fri 14/11

20:45-19:15

1 stop14h 30m

£434

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Mon 24/11

14:20-20:05

1 stop13h 45m

Chicago O'Hare Intl

Tue 9/12

15:20-13:40

1 stop14h 20m

£436

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Sat 25/10

22:00-11:05

1 stop21h 05m

Chicago O'Hare Intl

Wed 3/12

11:50-12:20

1 stop16h 30m

£440

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Sun 19/10

06:30-13:20

1 stop14h 50m

Chicago O'Hare Intl

Fri 21/11

16:20-00:20

1 stop24h 00m

£448

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Mon 6/10

19:30-11:50

1 stop24h 20m

Chicago O'Hare Intl

Mon 13/10

17:15-11:10

Nonstop9h 55m

£451

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Fri 5/9

09:10-20:23

2 stops19h 13m

Chicago O'Hare Intl

Sun 21/9

07:00-10:55

2 stops19h 55m

£471

Flights are sorted by cheapest return flights first.

Deals found on 12/7

Showing 1-10 of 18 results
1
2

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 11 July 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 13 July 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.

Weekly flight availability from Athens to Chicago O'Hare Intl Airport

Explore weekly flight availability from Athens to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 13 July 2025.

The most flights from ATH to ORD are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated 13 July 2025.
See what other customers who have flown with Delta, KLM, andAustrian Airlines from Athens to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
8.0
Very Good

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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.

  • What are the cheapest airlines flying from Athens to Chicago O'Hare Intl Airport round-trip?

    Currently priced at £428, KLM will fly you from Athens to Chicago O'Hare Intl Airport and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from £428 and £430, respectively. Users have found that KLM is 14% cheaper than the other options available to this destination.

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

    The cheapet airlines for a one-way flight from Athens to Chicago O'Hare Intl Airport are British Airways (£297), Air Serbia (£347), and Finnair (£436).

  • 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 Finnair (83%), United Airlines (78%) or Lufthansa (78%) 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.

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