What is the cheapest airline that flies from Illinois to Athens Eleftherios V.?

Air Serbia, Air Canada, and United Airlines are the most popular carriers operating from Illinois to Athens Eleftherios V.

How long does it take to fly to Athens?

If you’re flying from a popular airport in Illinois, such as Chicago or Peoria, and flying into Athens, then you can expect flight times to average 12h 11m and 26h 49m, respectively.

What airlines fly to Athens?

United Airlines, Turkish Airlines and Lufthansa are the top three most popular airlines that fly to Athens from Illinois according to our data. United Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Athens. Keep in mind that there are 18 different airlines that fly to Athens on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Illinois to Athens Eleftherios V. Airport?

Prices for flights from Illinois to Athens Eleftherios V. Airport refresh daily.

How many operators does momondo search for flights from Illinois to Athens Eleftherios V. Airport?

As of February 2026, there are 18 operators available to choose from for flights from Illinois to Athens Eleftherios V. Airport.

How old do you have to be to fly from Illinois to Athens Eleftherios V. Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Athens Eleftherios V. Airport.

What documentation or ID do you need to fly to Athens Eleftherios V. Airport?

The required travel and health documents for your Athens Eleftherios V. Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Athens Eleftherios V. Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$257 Cheap Flights from Illinois to Athens in 2026

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Find the cheapest flights from Illinois to Athens

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 pm - 10:40 am

STL

ATH

32h 40m

2 stops

1:10 pm - 2:42 pm

ATH

STL

32h 32m

2 stops

$479United Airlines

Tue, Mar 10 - Tue, Mar 17

8:17 am - 9:05 am

STL

ATH

17h 48m

2 stops

1:10 pm - 2:42 pm

ATH

STL

32h 32m

2 stops

$480United Airlines

Tue, Mar 10 - Tue, Mar 17

8:17 am - 9:20 am

STL

ATH

18h 03m

2 stops

1:10 pm - 3:29 pm

ATH

STL

33h 19m

1 stop

$492Air Canada

Tue, Mar 10 - Tue, Mar 17

4:05 pm - 10:40 am

STL

ATH

35h 35m

2 stops

1:10 pm - 3:29 pm

ATH

STL

33h 19m

1 stop

$496Air Canada

Tue, Mar 10 - Tue, Mar 17

8:20 pm - 8:50 pm

ORD

ATH

16h 30m

1 stop

9:50 am - 6:25 pm

ATH

ORD

16h 35m

1 stop

$539Turkish Airlines

Tue, Feb 24 - Wed, Mar 4

7:00 am - 9:05 am

STL

ATH

19h 05m

1 stop

1:10 pm - 3:29 pm

ATH

STL

33h 19m

1 stop

$539Lufthansa

Tue, Mar 10 - Tue, Mar 17

12:50 pm - 12:20 pm

ORD

ATH

16h 30m

1 stop

1:10 pm - 11:05 am

ATH

ORD

28h 55m

1 stop

$541Turkish Airlines

Tue, Mar 10 - Wed, Mar 25

7:20 pm - 6:40 pm

ORD

ATH

15h 20m

1 stop

9:10 pm - 5:45 pm

ATH

ORD

27h 35m

2 stops

$543Scandinavian Airlines

Wed, Feb 25 - Tue, Mar 10

7:15 pm - 11:55 am

ORD

ATH

32h 40m

1 stop

11:40 am - 4:10 pm

ATH

ORD

60h 30m

2 stops

$545Scandinavian Airlines

Fri, Apr 17 - Sat, Apr 25

4:49 pm - 1:40 am

STL

ATH

24h 51m

2 stops

6:25 am - 11:51 pm

ATH

STL

24h 26m

2 stops

$667Lufthansa

Tue, Mar 3 - Mon, Mar 9

United Airlines flights from Illinois to Athens

Our best United Airlines deals on Illinois to Athens flight tickets

United Airlines

Mar 10

STL7:00 pmLambert-St Louis

32h 40m

2 stops

ATH10:40 amAthens Eleftherios V.

Mar 17

ATH1:10 pmAthens Eleftherios V.

32h 32m

2 stops

STL2:42 pmLambert-St Louis

$479

United Airlines

Mar 10

STL8:17 amLambert-St Louis

17h 48m

2 stops

ATH9:05 amAthens Eleftherios V.

Mar 17

ATH1:10 pmAthens Eleftherios V.

32h 32m

2 stops

STL2:42 pmLambert-St Louis

$480

United Airlines

Mar 22

ORD7:15 amChicago O'Hare Intl

20h 25m

1 stop

ATH10:40 amAthens Eleftherios V.

Mar 27

ATH10:55 amAthens Eleftherios V.

16h 15m

1 stop

ORD8:10 pmChicago O'Hare Intl

$582

Air Canada flights from Illinois to Athens

Our best Air Canada deals on Illinois to Athens flight tickets

Air Canada

Mar 10

STL8:17 amLambert-St Louis

18h 03m

2 stops

ATH9:20 amAthens Eleftherios V.

Mar 17

ATH1:10 pmAthens Eleftherios V.

33h 19m

1 stop

STL3:29 pmLambert-St Louis

$492

Air Canada

Mar 10

STL4:05 pmLambert-St Louis

35h 35m

2 stops

ATH10:40 amAthens Eleftherios V.

Mar 17

ATH1:10 pmAthens Eleftherios V.

33h 19m

1 stop

STL3:29 pmLambert-St Louis

$496

Air Canada

Mar 23

ORD1:55 pmChicago O'Hare Intl

13h 15m

1 stop

ATH10:10 amAthens Eleftherios V.

Mar 27

ATH10:55 amAthens Eleftherios V.

16h 15m

1 stop

ORD8:10 pmChicago O'Hare Intl

$587

Fly from

Fly to

Route

Depart

Return

Price

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/10

7:00 pm-10:40 am

2 stops32h 40m

Athens Eleftherios V.

Tue 3/17

1:10 pm-2:42 pm

2 stops32h 32m

$479

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/10

8:17 am-9:05 am

2 stops17h 48m

Athens Eleftherios V.

Tue 3/17

1:10 pm-2:42 pm

2 stops32h 32m

$480

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/10

8:17 am-9:20 am

2 stops18h 03m

Athens Eleftherios V.

Tue 3/17

1:10 pm-3:29 pm

1 stop33h 19m

$492

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/10

4:05 pm-10:40 am

2 stops35h 35m

Athens Eleftherios V.

Tue 3/17

1:10 pm-3:29 pm

1 stop33h 19m

$496

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Tue 2/24

8:20 pm-8:50 pm

1 stop16h 30m

Athens Eleftherios V.

Wed 3/4

9:50 am-6:25 pm

1 stop16h 35m

$539

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/10

7:00 am-9:05 am

1 stop19h 05m

Athens Eleftherios V.

Tue 3/17

1:10 pm-3:29 pm

1 stop33h 19m

$539

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Tue 3/10

12:50 pm-12:20 pm

1 stop16h 30m

Athens Eleftherios V.

Wed 3/25

1:10 pm-11:05 am

1 stop28h 55m

$541

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Wed 2/25

7:20 pm-6:40 pm

1 stop15h 20m

Athens Eleftherios V.

Tue 3/10

9:10 pm-5:45 pm

2 stops27h 35m

$543

ChicagoAthens

ORD - ATH

ORDATH

Chicago O'Hare Intl

Fri 4/17

7:15 pm-11:55 am

1 stop32h 40m

Athens Eleftherios V.

Sat 4/25

11:40 am-4:10 pm

2 stops60h 30m

$545

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/3

4:49 pm-1:40 am

2 stops24h 51m

Athens Eleftherios V.

Mon 3/9

6:25 am-11:51 pm

2 stops24h 26m

$667

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Athens

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Athens?

The cheapest month to fly to Athens from Illinois is in November. Flight prices, which tend to average around $591, are often lower during this time because this is during the off-season. If you are unable to visit Athens during the month of November, then departing from Illinois during the month February is also very affordable. Most momondo users find prices during this month for around $618.

What is the cheapest day to depart on your flight to Athens?

The cheapest day to depart on your flight to Athens is on a Tuesday when prices can be found for as low as $1,194. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,345. These prices are subject to change though, so be sure to set up a Price Alert for flights to Athens.

What is the cheapest Illinois to Athens Eleftherios V. flight route?

Fly from Chicago O'Hare Intl to Athens Eleftherios V. for the best Illinois - Athens Eleftherios V. flight prices

How far in advance should I book a flight to Athens?

You are more likely to see cheaper flights to Athens from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Athens for around $855 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Athens from Illinois for as low as $871 on momondo.

What cabin class options are available on Illinois to Athens Eleftherios V. flights?

There are 3 cabin classes available to choose from on Illinois to Athens Eleftherios V. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Athens flights?

You could potentially save up to 11% on your flight if you consider stops on a Illinois to Athens flight.

Cheap Illinois to Athens flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Athens

Best Price Found	$614
Fastest flight time	10h 10m
Direct flights	Every day
Airports in Athens	1 airport

The best one-way flight to Athens from Illinois in the past 72 hours is $614. The best round-trip flight deal from Illinois to Athens found on momondo in the last 72 hours is $812.

The fastest flight from Illinois to Athens takes 10h 10m

Direct flights go from Illinois to Athens every day.

There is 1 airport in Athens. From Illinois there are direct flights to Athens Eleftherios V. (ATH).

Search flight deals

When did momondo last update prices for flights from Illinois to Athens Eleftherios V. Airport?
Prices for flights from Illinois to Athens Eleftherios V. Airport refresh daily.
How many operators does momondo search for flights from Illinois to Athens Eleftherios V. Airport?
As of February 2026, there are 18 operators available to choose from for flights from Illinois to Athens Eleftherios V. Airport.
How old do you have to be to fly from Illinois to Athens Eleftherios V. Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Athens Eleftherios V. Airport.
What documentation or ID do you need to fly to Athens Eleftherios V. Airport?
The required travel and health documents for your Athens Eleftherios V. Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Athens Eleftherios V. Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Illinois to Athens?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Illinois to Athens is Boeing 787 Dreamliner (47.25% of total bookings). The next most popular plane models are Boeing 787-8 Dreamliner (30.94%), Boeing 787-10 Dreamliner (20.41%), and Boeing 787-9 Dreamliner (0.24%).

Best airlines flying from Illinois to Athens

Compare and see reviews for airlines that fly from Illinois to Athens with momondo

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom $396	Free Cancellation	Rating 7.3 1,681 reviews	Search Scandinavian Airlines flights
Virgin Atlantic	PriceFrom $424	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
Delta	PriceFrom $438	Free Cancellation	Rating 7.9 8,191 reviews	Search Delta flights
Air France	PriceFrom $454	Free Cancellation	Rating 7.4 1,532 reviews	Search Air France flights
KLM	PriceFrom $466	Free Cancellation	Rating 7.7 1,452 reviews	Search KLM flights
Air Serbia	PriceFrom $470	Free Cancellation	Rating 6.1 215 reviews	Search Air Serbia flights
Air Canada	PriceFrom $480	Free Cancellation	Rating 7.1 10,715 reviews	Search Air Canada flights
LOT	PriceFrom $488	Free Cancellation	Rating 7.5 1,179 reviews	Search LOT flights
Turkish Airlines	PriceFrom $504	Free Cancellation	Rating 7.3 4,212 reviews	Search Turkish Airlines flights
Lufthansa	PriceFrom $533	Free Cancellation	Rating 6.8 7,781 reviews	Search Lufthansa flights

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Skala

Aegina

Loutraki

Tolo

Corinth

Chalcis

Agia Marina

Porto Cheli

Galaxidi

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Athens?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Athens. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Illinois to Athens with flexible booking policies on momondo?

Flights from Illinois to Athens with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Illinois to Athens?

Once all potential Illinois to Athens flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Illinois to Athens right now. Can momondo alert me if prices change?

Price alerts on flights to Athens from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.