$324 Cheap Flights from Chicago (ORD) to Athens (ATH)

View $324 flight on Wed, Jan 14, 2026Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Athens Intl. Airport (ATH)

Find available prices by choosing your travel dates.

Cheap Flights from Chicago to Athens (ORD-ATH)

Prices were available within the past 7 days and start at $324 for one-way flights and $429 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Tue, Aug 19 - Wed, Sep 3
ORD
Chicago
ATH
Athens
$429 Roundtrip, found 2 hours ago
$429
Roundtrip
found 2 hours ago
Select Scandinavian Airlines flight, departing Tue, Aug 19 from Chicago to Athens, returning Wed, Sep 3, priced at $429 found 2 hours ago
United
Wed, Oct 22 - Wed, Nov 5
ORD
Chicago
ATH
Athens
$630 Roundtrip, found 7 hours ago
$630
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 22 from Chicago to Athens, returning Wed, Nov 5, priced at $630 found 7 hours ago
Air Serbia
Mon, Sep 8 - Wed, Sep 17
ORD
Chicago
ATH
Athens
$630 Roundtrip, found 5 hours ago
$630
Roundtrip
found 5 hours ago
Select Air Serbia flight, departing Mon, Sep 8 from Chicago to Athens, returning Wed, Sep 17, priced at $630 found 5 hours ago
LOT-Polish Airlines
Wed, Nov 26 - Thu, Dec 4
ORD
Chicago
ATH
Athens
$631 Roundtrip, found 3 days ago
$631
Roundtrip
found 3 days ago
Select LOT-Polish Airlines flight, departing Wed, Nov 26 from Chicago to Athens, returning Thu, Dec 4, priced at $631 found 3 days ago
Virgin Atlantic
Mon, Mar 9 - Tue, Mar 17
ORD
Chicago
ATH
Athens
$634 Roundtrip, found 17 hours ago
$634
Roundtrip
found 17 hours ago
Select Virgin Atlantic flight, departing Mon, Mar 9 from Chicago to Athens, returning Tue, Mar 17, priced at $634 found 17 hours ago
Delta
Mon, Mar 9 - Tue, Mar 17
ORD
Chicago
ATH
Athens
$634 Roundtrip, found 17 hours ago
$634
Roundtrip
found 17 hours ago
Select Delta flight, departing Mon, Mar 9 from Chicago to Athens, returning Tue, Mar 17, priced at $634 found 17 hours ago
Air Canada
Mon, Nov 10 - Wed, Dec 10
ORD
Chicago
ATH
Athens
$634 Roundtrip, found 11 hours ago
$634
Roundtrip
found 11 hours ago
Select Air Canada flight, departing Mon, Nov 10 from Chicago to Athens, returning Wed, Dec 10, priced at $634 found 11 hours ago
British Airways
Tue, Dec 2 - Thu, Dec 4
ORD
Chicago
ATH
Athens
$643 Roundtrip, found 2 days ago
$643
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Dec 2 from Chicago to Athens, returning Thu, Dec 4, priced at $643 found 2 days ago
American Airlines
Mon, Oct 20 - Mon, Nov 17
ORD
Chicago
ATH
Athens
$645 Roundtrip, found 4 days ago
$645
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Oct 20 from Chicago to Athens, returning Mon, Nov 17, priced at $645 found 4 days ago
Iberia
Mon, Nov 10 - Wed, Nov 19
ORD
Chicago
ATH
Athens
$648 Roundtrip, found 8 hours ago
$648
Roundtrip
found 8 hours ago
Select Iberia flight, departing Mon, Nov 10 from Chicago to Athens, returning Wed, Nov 19, priced at $648 found 8 hours ago
Flights from Chicago (ORD) to Athens (ATH)
Origin airport
O'Hare Intl.
Destination airport
Eleftherios Venizelos
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Emirates, Finnair, ITA Airways, Iberia, KLM, LOT-Polish Airlines, Lufthansa, Royal Jordanian, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
$428
Distance
5449 mi

Chicago to Athens Flights

The cheapest times to fly from Chicago to Athens

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Athens are during the month of August. You can find some of the cheapest flights from Chicago to Athens with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Chicago to Athens

Sunday is one of the best days to book for cheap flights from Chicago to Athens: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Chicago to Athens

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Athens in 2025. You can also book with separate airlines for your outbound and return journeys, from $324 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Athens flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Athens airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Eleftherios Venizelos Airport (ATH) cost?
You can book cheap return tickets starting from $939 from O’Hare Intl. Airport (ORD) to Eleftherios Venizelos Airport (ATH). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving ORD on May 14 2025 and touching down at ATH. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from ORD to ATH?
The cheapest flights from ORD to ATH are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from ORD to ATH?
Jet off from ORD to ATH with British Airways. This carrier currently offers the cheapest one-way fare for this route, starting at $678. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ORD on July 20 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from O'Hare Intl. Airport (ORD) to Eleftherios Venizelos Airport (ATH)?
You’ll need to take a flight with a layover when traveling from O’Hare Intl. Airport (ORD) to Eleftherios Venizelos Airport (ATH). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from ORD to ATH?
Typically you’ll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from ORD to ATH?
With 80% of journeys usually landing on time, United Airlines has the best on-time performance for nonstop flights from O’Hare Intl. Airport (ORD) to Eleftherios Venizelos Airport (ATH). To monitor your flight status and get notifications about any changes, head to the Expedia App.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Eleftherios Venizelos Airport (ATH)?
To reach Eleftherios Venizelos Airport (ATH) on schedule, book a flight that leaves O’Hare Intl. Airport (ORD) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Eleftherios Venizelos Airport (ATH) last-minute?
Waiting until right before your break to book a ticket from ORD to ATH generally means paying more. While you may find some last-minute discounts, they aren’t always guaranteed. Be flexible with your itinerary to maximize your chances of getting a bargain.
Is it cheaper to book an ORD to ATH flight and hotel package?
Compared with arranging flights and hotels separately, booking an ORD to ATH flight and hotel package with Expedia could result in significant savings. What’s more, having everything in one convenient place takes the hassle out of travel planning. Simply secure your flights and choose from our extensive range of hotels, then tailor your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Eleftherios Venizelos Airport (ATH)?
Typically, it’s possible to cancel or reschedule your ORD to ATH flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline’s policies in your itinerary to see what changes are allowed and if any costs are involved. You’ll also find more details on our Customer Service portal.

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*Available to One Key members.