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These are the earliest and latest flight times available from Athens to Chicago O'Hare Intl Airport:

• Earliest: departs at 9:35 am and lands at 9:05 pm
• Latest: departs at 12:55 pm and lands at 12:25 am.

The flight takes about 11h 30m.

Four cabin classes are available on flights from Athens to Chicago O'Hare Intl Airport:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

A nonstop flight from Athens to Chicago O'Hare Intl Airport takes 11h 30m, covering 5,446 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Round-trip flights from Athens to Chicago O'Hare Intl Airport range from $649 to $916, with an average of $764 over the past 12 months. Anything below $649 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 16% above the $764 route average. Book 26 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $500 round-trip via Paris Charles de Gaulle (CDG), compared to $853 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $70–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 787-10 Dreamliner family is used most often on this route, operated mainly by Lufthansa and United Airlines. Other aircraft seen on the route include Boeing 787 Dreamliner variants.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $750 to $7,230. That means the highest observed fare was about 10x higher than the lowest one.

American Airlines is the only airline on the Athens to Chicago O'Hare Intl Airport route offering in-flight Wi-Fi. Pricing depends on fare class.

One-way fares from Athens to Chicago O'Hare Intl Airport are currently in line with typical prices for this route. Average one-way fares are about $615.

Chicago O'Hare Intl Airport (ORD) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:

• Routes Car & Truck Rentals
• Europcar
• Hertz
• Dollar
• Ace

Flights from Athens to Chicago O'Hare Intl Airport usually depart from Athens Eleftherios V. (ATH) and arrive at Chicago O'Hare Intl (ORD).

Morning flights have the fewest delays on this route, while afternoon departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Athens to Chicago O'Hare Intl Airport route, 6% of flights were delayed in the past 3 months, with delays averaging 3h 26m.

One-stop flights from Athens to Chicago O'Hare Intl Airport most commonly connect through:

• London Heathrow (LHR) - 29% of one-stop connections
• Istanbul (IST) - 19% of one-stop connections
• Zurich (ZRH) - 12% of one-stop connections
• Frankfurt am Main (FRA) - 11% of one-stop connections

Yes. Flexible dates can save you up to 23% on flights from Athens to Chicago O'Hare Intl Airport. Thursday is the cheapest departure day at $697 round-trip on average, while Sunday is the most expensive at $900, a difference of $203.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

2 airlines operate flights between Athens and Chicago O'Hare Intl Airport. The airlines offering nonstop flights on this route include:

• United Airlines
• American Airlines

Flying via Munich Franz Josef Strauss (MUC) gives the shortest average 1-stop total travel time at 13h 06m, compared with 13h 24m via Vienna Intl (VIE) and 13h 38m via Rome Fiumicino (FCO).

Chicago O'Hare Intl Airport is 8 hours behind Athens (Central Time vs Eastern European Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Chicago O'Hare Intl Airport are Magnificent Mile, Grant Park and Soldier Field. These are among the most viewed places in Chicago O'Hare Intl Airport on KAYAK.

Among airlines operating Athens to Chicago O'Hare Intl Airport flights:

• British Airways: offers free seat selection
• United Airlines: offers free seat selection
• Iberia: offers free seat selection
• American Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Lufthansa: a cabin bag and a checked bag in Economy Class
• British Airways: a cabin bag and a checked bag in Economy Class
• United Airlines: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Chicago Midway International Airport (MDW) is closer to downtown Chicago and therefore a better option if you’re mostly concerned about the proximity to downtown. It is also less busy and therefore shorter lines for passengers. However, they handle far fewer flights between Athens and Chicago and all flights landing at MDW involve at least one layover en route.

When booking a flight for a child to fly alone, Lufthansa is a good choice. They have an unaccompanied minors service which ensures that your child is well taken care of during the entire trip. This means that they will have someone looking after them while in the cabin, during layovers, and upon landing when going through security and immigration.

If you’re looking for a budget-friendly option, the CTA Blue Line is well worth considering as it runs directly from ORD to downtown Chicago, after which you will have to seek alternative means to get you from downtown to your hotel. The taxi is a more convenient option as the driver will be happy to drop you off at any location within the city center and even the outskirts depending on where your hotel is located.

If you have the option of upgrading seat classes, it is always worth taking. First-class seats are much more comfortable with extra legroom, and you get top-quality service with the meals and drinks. Furthermore, you will have priority boarding allowing you to settle in for your flight much quicker as well as access to the first-class lounge where you can hang out while waiting to board your flight.