When did momondo last update prices for flights from Illinois to Thera Santorini Airport?

Prices for flights from Illinois to Thera Santorini Airport were last updated today.

How many operators does momondo search for flights from Illinois to Thera Santorini Airport?

As of October 2025, there is 1 operator available to choose from for flights from Illinois to Thera Santorini Airport.

How old do you have to be to fly from Illinois to Thera Santorini 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 Thera Santorini Airport.

What documentation or ID do you need to fly to Thera Santorini Airport?

The travel and health documents you'll need for your trip to Thera Santorini Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Thera Santorini Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$614 Cheap Flights from Illinois to Thera in 2025/26

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Find the cheapest flights from Illinois to Thera

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:40 pm - 6:30 pmORD-JTR

12h 50m1 stop

8:05 pm - 12:30 pmJTR-ORD

24h 25m1 stop

$614Lufthansa

Find Deal

Thu, Oct 16 - Tue, Oct 21

9:55 am - 6:10 pmORD-JTR

24h 15m2 stops

8:45 pm - 3:55 pmJTR-ORD

27h 10m1 stop

$626Multiple Airlines

Find Deal

Thu, Oct 16 - Mon, Oct 20

4:55 pm - 2:55 pmORD-JTR

14h 00m1 stop

2:45 pm - 1:50 pmJTR-ORD

31h 05m1 stop

$648British Airways

Find Deal

Fri, Oct 17 - Tue, Oct 21

4:55 pm - 4:10 pmORD-JTR

15h 15m1 stop

2:45 pm - 1:50 pmJTR-ORD

31h 05m1 stop

$649British Airways

Find Deal

Fri, Oct 17 - Tue, Oct 21

7:05 pm - 9:50 amORD-JTR

30h 45m1 stop

8:45 pm - 3:55 pmJTR-ORD

27h 10m1 stop

$677SWISS

Find Deal

Mon, Oct 13 - Mon, Oct 20

7:05 pm - 6:10 pmORD-JTR

15h 05m1 stop

8:45 pm - 3:55 pmJTR-ORD

27h 10m1 stop

$703SWISS

Find Deal

Thu, Oct 16 - Mon, Oct 20

1:43 pm - 2:55 pmORD-JTR

17h 12m2 stops

2:45 pm - 5:00 pmJTR-ORD

34h 15m1 stop

$850American Airlines

Find Deal

Fri, Oct 17 - Tue, Oct 21

1:43 pm - 2:55 pmORD-JTR

17h 12m2 stops

2:45 pm - 9:27 amJTR-ORD

26h 42m2 stops

$860American Airlines

Find Deal

Fri, Oct 17 - Tue, Oct 21

11:05 am - 2:15 pmSTL-JTR

19h 10m3 stops

8:25 am - 10:45 pmJTR-STL

22h 20m3 stops

$1,110Air Canada

Find Deal

Sat, Nov 15 - Sat, Nov 22

4:05 pm - 2:15 pmSTL-JTR

38h 10m2 stops

8:25 am - 3:29 pmJTR-STL

39h 04m2 stops

$1,615Air Canada

Find Deal

Fri, Nov 7 - Tue, Nov 11

Lufthansa flights from Illinois to Thera

Our best Lufthansa deals on Illinois to Thera flight tickets

Lufthansa

Oct 16

ORD9:40 pmChicago O'Hare Intl

12h 50m

1 stop

JTR6:30 pmThera Santorini

Oct 21

JTR8:05 pmThera Santorini

24h 25m

1 stop

ORD12:30 pmChicago O'Hare Intl

$614

Find similar

Lufthansa

Oct 16

ORD9:40 pmChicago O'Hare Intl

12h 50m

1 stop

JTR6:30 pmThera Santorini

Oct 21

JTR8:05 pmThera Santorini

24h 50m

2 stops

ORD12:55 pmChicago O'Hare Intl

$671

Find similar

Lufthansa

Oct 13

ORD4:00 pmChicago O'Hare Intl

19h 15m

2 stops

JTR7:15 pmThera Santorini

Oct 21

JTR8:05 pmThera Santorini

24h 25m

1 stop

ORD12:30 pmChicago O'Hare Intl

$713

Find similar

British Airways flights from Illinois to Thera

Our best British Airways deals on Illinois to Thera flight tickets

British Airways

Oct 17

ORD4:55 pmChicago O'Hare Intl

14h 00m

1 stop

JTR2:55 pmThera Santorini

Oct 21

JTR2:45 pmThera Santorini

31h 05m

1 stop

ORD1:50 pmChicago O'Hare Intl

$648

Find similar

British Airways

Oct 17

ORD4:55 pmChicago O'Hare Intl

15h 15m

1 stop

JTR4:10 pmThera Santorini

Oct 21

JTR2:45 pmThera Santorini

31h 05m

1 stop

ORD1:50 pmChicago O'Hare Intl

$649

Find similar

British Airways

Oct 15

ORD2:23 pmChicago O'Hare Intl

39h 42m

2 stops

JTR2:05 pmThera Santorini

Oct 20

JTR2:50 pmThera Santorini

38h 17m

2 stops

ORD9:07 pmChicago O'Hare Intl

$841

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoThera

ORD - JTR

ORDJTR

Chicago O'Hare Intl

Thu 10/16

9:40 pm-6:30 pm

1 stop12h 50m

Thera Santorini

Tue 10/21

8:05 pm-12:30 pm

1 stop24h 25m

$614

ChicagoThera

ORD - JTR

ORDJTR

Chicago O'Hare Intl

Thu 10/16

9:55 am-6:10 pm

2 stops24h 15m

Thera Santorini

Mon 10/20

8:45 pm-3:55 pm

1 stop27h 10m

$626

ChicagoThera

ORD - JTR

ORDJTR

Chicago O'Hare Intl

Fri 10/17

4:55 pm-2:55 pm

1 stop14h 00m

Thera Santorini

Tue 10/21

2:45 pm-1:50 pm

1 stop31h 05m

$648

ChicagoThera

ORD - JTR

ORDJTR

Chicago O'Hare Intl

Fri 10/17

4:55 pm-4:10 pm

1 stop15h 15m

Thera Santorini

Tue 10/21

2:45 pm-1:50 pm

1 stop31h 05m

$649

ChicagoThera

ORD - JTR

ORDJTR

Chicago O'Hare Intl

Mon 10/13

7:05 pm-9:50 am

1 stop30h 45m

Thera Santorini

Mon 10/20

8:45 pm-3:55 pm

1 stop27h 10m

$677

ChicagoThera

ORD - JTR

ORDJTR

Chicago O'Hare Intl

Thu 10/16

7:05 pm-6:10 pm

1 stop15h 05m

Thera Santorini

Mon 10/20

8:45 pm-3:55 pm

1 stop27h 10m

$703

ChicagoThera

ORD - JTR

ORDJTR

Chicago O'Hare Intl

Fri 10/17

1:43 pm-2:55 pm

2 stops17h 12m

Thera Santorini

Tue 10/21

2:45 pm-5:00 pm

1 stop34h 15m

$850

ChicagoThera

ORD - JTR

ORDJTR

Chicago O'Hare Intl

Fri 10/17

1:43 pm-2:55 pm

2 stops17h 12m

Thera Santorini

Tue 10/21

2:45 pm-9:27 am

2 stops26h 42m

$860

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 11/15

11:05 am-2:15 pm

3 stops19h 10m

Thera Santorini

Sat 11/22

8:25 am-10:45 pm

3 stops22h 20m

$1,110

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Fri 11/7

4:05 pm-2:15 pm

2 stops38h 10m

Thera Santorini

Tue 11/11

8:25 am-3:29 pm

2 stops39h 04m

$1,615

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Thera

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 day to depart on your flight to Thera?

On average, the least expensive day to fly to Thera from Illinois is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $812. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $1,441. These prices are subject to change though, so be sure to set up a Price Alert for flights to Thera.

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

According to our data, the cheapest time of day to fly to Thera is at noon. momondo users have found flights departing from Illinois to Thera at noon for as low as $679. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $915.

Cheap Illinois to Thera flight deals and tips

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

Direct flights	None

There are no direct flights from Illinois to Thera. There are no popular flight routes from Illinois to Thera.

Search flight deals

When did momondo last update prices for flights from Illinois to Thera Santorini Airport?
Prices for flights from Illinois to Thera Santorini Airport were last updated today.
How many operators does momondo search for flights from Illinois to Thera Santorini Airport?
As of October 2025, there is 1 operator available to choose from for flights from Illinois to Thera Santorini Airport.
How old do you have to be to fly from Illinois to Thera Santorini 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 Thera Santorini Airport.
What documentation or ID do you need to fly to Thera Santorini Airport?
The travel and health documents you'll need for your trip to Thera Santorini Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Thera Santorini Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Illinois to Thera

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

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $602	Free Cancellation	Rating 6.7 7,415 reviews		Search British Airways flights

Oia

Imerovigli

Kamari

Pyrgos Kallistis

Ios

Firostefani

Perissa

Megalochori

Karterados

Mylopotas

Why use momondo?

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

Finding the right flight to Thera from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Thera quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Illinois to Thera flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Thera from Illinois.

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

Yes. momondo can track prices for Illinois to Thera flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.