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Cheap flights from Illinois to Athens from $249

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Athens departing on 2/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Athens

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:55 pm - 1:40 am
STL
-
ATH
22h 45m2 stops
Multiple Airlines Logo
1:10 pm - 9:42 pm
ATH
-
STL
39h 32m2 stops
$472Multiple Airlines
Mon, Feb 23 - Tue, Mar 17
Air Canada Logo
4:05 pm - 11:40 am
STL
-
ATH
35h 35m2 stops
Air Canada Logo
12:15 pm - 4:04 pm
ATH
-
STL
34h 49m2 stops
$479Air Canada
Thu, Mar 5 - Thu, Mar 12
Multiple Airlines Logo
6:55 pm - 1:40 am
STL
-
ATH
22h 45m2 stops
Multiple Airlines Logo
1:10 pm - 3:29 pm
ATH
-
STL
33h 19m1 stop
$486Multiple Airlines
Mon, Feb 23 - Tue, Mar 17
British Airways Logo
12:00 pm - 6:50 pm
STL
-
ATH
22h 50m2 stops
British Airways Logo
4:50 pm - 11:52 pm
ATH
-
STL
38h 02m2 stops
$490British Airways
Sat, Feb 28 - Sun, Mar 8
British Airways Logo
12:00 pm - 6:50 pm
STL
-
ATH
22h 50m2 stops
British Airways Logo
7:50 pm - 11:52 pm
ATH
-
STL
35h 02m2 stops
$491British Airways
Sat, Feb 28 - Sun, Mar 8
Multiple Airlines Logo
4:05 pm - 4:40 pm
STL
-
ATH
16h 35m2 stops
Multiple Airlines Logo
12:15 pm - 3:29 pm
ATH
-
STL
34h 14m1 stop
$497Multiple Airlines
Tue, Mar 3 - Mon, Mar 9
American Airlines Logo
6:33 pm - 7:15 pm
STL
-
ATH
16h 42m2 stops
American Airlines Logo
7:15 am - 6:02 pm
ATH
-
STL
18h 47m2 stops
$501American Airlines
Fri, Feb 20 - Sat, Feb 28
United Airlines Logo
3:00 pm - 1:40 am
PIA
-
ATH
26h 40m2 stops
United Airlines Logo
6:15 am - 10:10 am
ATH
-
PIA
35h 55m2 stops
$501United Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
10:45 am - 1:40 am
PIA
-
ATH
30h 55m2 stops
United Airlines Logo
6:15 am - 9:39 pm
ATH
-
PIA
23h 24m2 stops
$502United Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
3:50 pm - 4:35 pm
STL
-
ATH
16h 45m1 stop
United Airlines Logo
6:25 am - 10:58 pm
ATH
-
STL
24h 33m2 stops
$509United Airlines
Fri, Jan 30 - Tue, Feb 3

United Airlines flights from Illinois to Athens

Our best United Airlines deals on Illinois to Athens flight tickets
United Airlines
Feb 4
PIA3:00 pmGreater Peoria
26h 40m
2 stops
ATH1:40 amAthens Eleftherios V.
Feb 8
ATH6:15 amAthens Eleftherios V.
35h 55m
2 stops
PIA10:10 amGreater Peoria
$501
Find similar
United Airlines
Feb 4
PIA10:45 amGreater Peoria
30h 55m
2 stops
ATH1:40 amAthens Eleftherios V.
Feb 8
ATH6:15 amAthens Eleftherios V.
23h 24m
2 stops
PIA9:39 pmGreater Peoria
$502
Find similar
United Airlines
Jan 30
STL3:50 pmLambert-St Louis
16h 45m
1 stop
ATH4:35 pmAthens Eleftherios V.
Feb 3
ATH6:25 amAthens Eleftherios V.
24h 33m
2 stops
STL10:58 pmLambert-St Louis
$509
Find similar

Delta flights from Illinois to Athens

Our best Delta deals on Illinois to Athens flight tickets
Delta
Dec 31
ORD5:20 pmChicago O'Hare Intl
12h 15m
1 stop
ATH1:35 pmAthens Eleftherios V.
Jan 21
ATH6:05 amAthens Eleftherios V.
16h 15m
1 stop
ORD2:20 pmChicago O'Hare Intl
$585
Find similar
Delta
Dec 30
ORD8:00 amChicago O'Hare Intl
17h 55m
1 stop
ATH9:55 amAthens Eleftherios V.
Jan 21
ATH6:05 amAthens Eleftherios V.
16h 15m
1 stop
ORD2:20 pmChicago O'Hare Intl
$586
Find similar
Delta
Dec 30
ORD7:00 amChicago O'Hare Intl
18h 55m
2 stops
ATH9:55 amAthens Eleftherios V.
Jan 16
ATH6:05 amAthens Eleftherios V.
16h 15m
1 stop
ORD2:20 pmChicago O'Hare Intl
$590
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Athens 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, momondo users made 832,500 searches. Data last updated December 26, 2025.
Use the filters below to find and compare flights from Illinois to Athens that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Mon 2/23

6:55 pm-1:40 am

2 stops22h 45m

Athens Eleftherios V.

Tue 3/17

1:10 pm-9:42 pm

2 stops39h 32m

$472

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Thu 3/5

4:05 pm-11:40 am

2 stops35h 35m

Athens Eleftherios V.

Thu 3/12

12:15 pm-4:04 pm

2 stops34h 49m

$479

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Mon 2/23

6:55 pm-1:40 am

2 stops22h 45m

Athens Eleftherios V.

Tue 3/17

1:10 pm-3:29 pm

1 stop33h 19m

$486

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sat 2/28

12:00 pm-6:50 pm

2 stops22h 50m

Athens Eleftherios V.

Sun 3/8

4:50 pm-11:52 pm

2 stops38h 02m

$490

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sat 2/28

12:00 pm-6:50 pm

2 stops22h 50m

Athens Eleftherios V.

Sun 3/8

7:50 pm-11:52 pm

2 stops35h 02m

$491

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/3

4:05 pm-4:40 pm

2 stops16h 35m

Athens Eleftherios V.

Mon 3/9

12:15 pm-3:29 pm

1 stop34h 14m

$497

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Fri 2/20

6:33 pm-7:15 pm

2 stops16h 42m

Athens Eleftherios V.

Sat 2/28

7:15 am-6:02 pm

2 stops18h 47m

$501

PeoriaAthens

PIA - ATH

PIAATH

Greater Peoria

Wed 2/4

3:00 pm-1:40 am

2 stops26h 40m

Athens Eleftherios V.

Sun 2/8

6:15 am-10:10 am

2 stops35h 55m

$501

PeoriaAthens

PIA - ATH

PIAATH

Greater Peoria

Wed 2/4

10:45 am-1:40 am

2 stops30h 55m

Athens Eleftherios V.

Sun 2/8

6:15 am-9:39 pm

2 stops23h 24m

$502

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Fri 1/30

3:50 pm-4:35 pm

1 stop16h 45m

Athens Eleftherios V.

Tue 2/3

6:25 am-10:58 pm

2 stops24h 33m

$509

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Athens from

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

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 $589, 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 $629.

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 $1,188. 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 $1,335. These prices are subject to change though, so be sure to set up a Price Alert for flights to Athens.

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

The cheapest time of day to fly to Athens is in the morning when flights can be purchased for as low as $782. Flights to Athens are more costly in the afternoon, with an average ticket price of $1,272. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $858 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 $850 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 3% 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

$737

Fastest flight time

10h 05m

Direct flights

Every day

Airports in Athens

1 airport
The best one-way flight to Athens from Illinois in the past 72 hours is $737. The best round-trip flight deal from Illinois to Athens found on momondo in the last 72 hours is $1,058.
The fastest flight from Illinois to Athens takes 10h 05m
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?

  • 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?

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 AirlinesPriceFrom $407Free CancellationRating
7.4
1,627 reviews
Search Scandinavian Airlines flights
Virgin AtlanticPriceFrom $424Free CancellationRating
7.5
677 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $439Free CancellationRating
7.9
8,016 reviews
Search Delta flights
Air FrancePriceFrom $454Free CancellationRating
7.4
1,515 reviews
Search Air France flights
Air SerbiaPriceFrom $470Free CancellationRating
6.2
210 reviews
Search Air Serbia flights
Air CanadaPriceFrom $480Free CancellationRating
7.1
10,562 reviews
Search Air Canada flights
KLMPriceFrom $491Free CancellationRating
7.7
1,434 reviews
Search KLM flights
Turkish AirlinesPriceFrom $504Free CancellationRating
7.3
4,115 reviews
Search Turkish Airlines flights
LOTPriceFrom $520Free CancellationRating
7.5
1,152 reviews
Search LOT flights
LufthansaPriceFrom $537Free CancellationRating
6.8
7,656 reviews
Search Lufthansa flights

Traveling to a place near Athens?

Book flights to Athens if you plan to visit one of these locations
Piraeus
Glyfada
Marathon
Hydra
Aegina
Skala
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.

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