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Cheap flights from Athens to Chicago O'Hare Intl Airport from £273

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 13/2. Fares are subject to change and may not be available on all flights or dates of travel.
ATH — ORD
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Athens to O'Hare Intl

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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 14 November 2025.

Thu 4/1217:20ATH - ORD
1 stop29h 00mMultiple Airlines
Mon 8/1217:20ORD - ATH
1 stop12h 15mMultiple Airlines
Deal found 11/11£415
Thu 4/1206:05ATH - ORD
2 stops20h 22mDelta
Mon 8/1217:20ORD - ATH
1 stop12h 15mDelta
Deal found 13/11£420
Tue 2/1213:45ATH - ORD
1 stop32h 35mKLM
Sun 14/1207:00ORD - ATH
1 stop18h 55mKLM
Deal found 11/11£441
Thu 4/1206:05ATH - ORD
2 stops20h 22mDelta
Sun 14/1207:00ORD - ATH
1 stop18h 55mDelta
Deal found 12/11£445
Thu 25/1214:10ATH - ORD
1 stop13h 55mUnited Airlines
Thu 8/116:10ORD - ATH
1 stop12h 45mUnited Airlines
Deal found 12/11£454
Fri 26/1206:05ATH - ORD
1 stop22h 00mUnited Airlines
Fri 9/121:50ORD - ATH
1 stop19h 50mUnited Airlines
Deal found 13/11£457
Thu 25/1214:10ATH - ORD
1 stop13h 55mUnited Airlines
Sun 11/115:20ORD - ATH
1 stop13h 00mUnited Airlines
Deal found 12/11£457
Thu 25/1214:10ATH - ORD
1 stop13h 55mUnited Airlines
Fri 9/112:00ORD - ATH
2 stops17h 40mUnited Airlines
Deal found 12/11£458

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 14 November 2025.

Round-trip from

£415

One-way from

£273

Popular in

August

Cheapest in

February

Average price

£504

Good round-trip deal

£780 or less
Air France
  • Air France
  • 9/4-14/4
  • 2 total stops
  • 28h 50m total
  • Athens to Chicago
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13/2
  • 13/2
  • 1 total stop
  • 17h 15m total
  • Athens to Chicago
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£16 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Athens Eleftherios V. to Chicago O'Hare Intl.
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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 14 November 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.

Thu 9/4

06:00-14:20

1 stop16h 20m

Chicago O'Hare Intl

Mon 13/4

16:20-12:45

1 stop12h 25m

£418

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Thu 9/4

06:00-14:20

1 stop16h 20m

Chicago O'Hare Intl

Mon 13/4

10:10-07:00

1 stop12h 50m

£418

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Thu 9/4

13:40-23:54

2 stops18h 14m

Chicago O'Hare Intl

Mon 13/4

07:00-07:00

1 stop16h 00m

£422

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Sun 8/2

15:45-10:05

1 stop26h 20m

Chicago O'Hare Intl

Sun 8/3

21:20-20:50

1 stop16h 30m

£423

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Thu 4/12

14:35-09:56

2 stops27h 21m

Chicago O'Hare Intl

Mon 8/12

17:20-13:35

1 stop12h 15m

£424

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Sun 8/2

06:05-17:45

2 stops19h 40m

Chicago O'Hare Intl

Sun 8/3

17:25-01:15

1 stop24h 50m

£433

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Fri 20/2

06:05-14:20

1 stop16h 15m

Chicago O'Hare Intl

Wed 8/4

17:10-13:40

1 stop12h 30m

£433

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Fri 20/2

06:05-14:20

1 stop16h 15m

Chicago O'Hare Intl

Wed 8/4

16:20-16:40

1 stop16h 20m

£438

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Thu 16/4

06:00-16:36

2 stops18h 36m

Chicago O'Hare Intl

Wed 29/4

17:45-17:40

2 stops15h 55m

£441

AthensChicago

ATH - ORD

ATHORD

Athens Eleftherios V.

Fri 13/2

07:45-17:00

1 stop17h 15m

£273

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 19 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 7 November 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 78 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, February is the cheapest month in which you can book a flight from Athens to Chicago O'Hare Intl Airport (average of £313). Flying from Athens to Chicago O'Hare Intl Airport in August is currently the most expensive (average of £416). 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.

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 0 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 16h 20m. KLM provides one of the quickest options available for as low as £418. 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 American Airlines (82%), Alaska Airlines (82%) or Finnair (82%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Athens to Chicago O'Hare Intl Airport?

    While on average a flight from Athens to Chicago O'Hare Intl Airport is generally £780, our data shows the cheapest flight currently is £659. When looking at the most popular route, (Athens Eleftherios V. - Chicago O'Hare Intl), you can expect to pay £513 for that flight.

  • 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, February is the cheapest month in which you can book a flight from Athens to Chicago O'Hare Intl Airport (average of £313). Flying from Athens to Chicago O'Hare Intl Airport in August is currently the most expensive (average of £416). 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

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

Not ready to book yet? You can track prices for flights from Athens to O'Hare Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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