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$240+ Cheap flights from Illinois to the Czech Republic

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PRG
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
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Cheap flight deals from Illinois to Czech Republic

Cheapest flights from Illinois to Czech Republic
Explore the most affordable flight options available from Illinois to Czech Republic. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:20 pmORD - PRG
1 stop12h 00mScandinavian Airlines
Fri 1/1610:25 amPRG - ORD
1 stop13h 20mScandinavian Airlines
Deal found 12/12$697
This FlightHub deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:20 pmORD - PRG
1 stop16h 20mScandinavian Airlines
Thu 1/1510:25 amPRG - ORD
1 stop13h 20mScandinavian Airlines
Deal found 12/12$723
This Scandinavian Airlines deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:20 pmORD - PRG
1 stop16h 20mScandinavian Airlines
Wed 1/1410:25 amPRG - ORD
1 stop13h 20mScandinavian Airlines
Deal found 12/12$746
This KAYAK deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:20 pmORD - PRG
2 stops32h 05mScandinavian Airlines
Sat 1/1710:25 amPRG - ORD
1 stop13h 20mScandinavian Airlines
Deal found 12/12$753
This Kiwi.com deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:10 pmORD - PRG
1 stop33h 35mSWISS
Tue 1/1310:00 amPRG - ORD
1 stop13h 20mSWISS
Deal found 12/12$755
This United Airlines deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/282:00 pmORD - PRG
2 stops25h 25mUnited Airlines
Fri 1/167:35 amPRG - ORD
2 stops21h 30mUnited Airlines
Deal found 12/12$776
This United Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 pmORD - PRG
1 stop15h 05mUnited Airlines
Fri 1/96:50 amPRG - ORD
2 stops17h 06mUnited Airlines
Deal found 12/13$777
This Booking.com deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:50 pmORD - PRG
1 stop17h 10mMultiple Airlines
Sun 12/214:40 pmPRG - ORD
1 stop28h 20mMultiple Airlines
Deal found 12/13$781
This United Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:51 amORD - PRG
2 stops18h 59mUnited Airlines
Fri 1/96:50 amPRG - ORD
2 stops18h 25mUnited Airlines
Deal found 12/13$782
This Expedia deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/164:10 pmORD - PRG
1 stop23h 10mMultiple Airlines
Sun 12/214:40 pmPRG - ORD
1 stop28h 20mMultiple Airlines
Deal found 12/14$783
This United Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 pmORD - PRG
1 stop21h 25mUnited Airlines
Sat 1/103:10 pmPRG - ORD
1 stop27h 00mUnited Airlines
Deal found 12/13$786
This Delta deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:29 amMDW - PRG
2 stops19h 11mDelta
Thu 1/86:00 amPRG - MDW
2 stops19h 32mDelta
Deal found 12/13$887

Find flight deals from Illinois to Czech Republic

Keep the following information in mind while searching for Illinois to Czech Republic flight deals. Data was last updated December 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$452
(Kiwi.com)

One-way from

$261
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$664
Provider with most accurate pricing for Chicago (CHI)-Václav Havel Prague flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Václav Havel Prague flights.
Search Deals
From Illinois to Czech Republic
Search Deals
One-way flight from Illinois to Czech Republic
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($192 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Czech Republic 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, Cheapflights users made 2,558,603 searches. Data last updated December 14, 2025.
Use the filters below to find and compare flights from Illinois to the Czech Republic that are best for you.

Fly from

Illinois

Fly to

Czech Republic

Route

Depart

Return

Price

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 1/28

4:05 pm-1:55 pm

2 stops14h 50m

Václav Havel Prague

Wed 2/4

8:15 pm-3:29 pm

2 stops50h 14m

$492

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 2/6

6:40 pm-4:05 pm

2 stops14h 25m

Václav Havel Prague

Tue 2/10

7:25 am-11:59 pm

2 stops23h 34m

$494

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 1/26

6:40 pm-4:05 pm

2 stops14h 25m

Václav Havel Prague

Sun 2/1

10:30 am-10:58 pm

2 stops19h 28m

$494

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 2/6

9:57 am-1:05 pm

2 stops20h 08m

Václav Havel Prague

Tue 2/10

7:25 am-3:29 pm

2 stops39h 04m

$505

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Thu 1/22

6:57 pm-5:05 pm

2 stops15h 08m

Václav Havel Prague

Sat 1/31

8:55 am-8:43 pm

2 stops18h 48m

$507

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Thu 1/22

6:25 am-9:05 am

2 stops19h 40m

Václav Havel Prague

Thu 1/29

11:35 am-11:37 pm

2 stops19h 02m

$507

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sat 1/24

11:23 am-11:40 am

2 stops17h 17m

Václav Havel Prague

Tue 2/3

2:30 pm-11:37 pm

2 stops16h 07m

$507

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 1/27

1:00 pm-11:40 am

2 stops15h 40m

Václav Havel Prague

Tue 2/3

11:35 am-8:43 pm

2 stops16h 08m

$507

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Thu 1/22

9:45 am-9:05 am

2 stops16h 20m

Václav Havel Prague

Wed 2/4

6:00 am-8:43 pm

2 stops21h 43m

$507

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 1/27

9:45 am-11:40 am

2 stops18h 55m

Václav Havel Prague

Sun 2/1

2:30 pm-11:37 pm

2 stops16h 07m

$507

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 55 results
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Best time to book a flight from Illinois to Czech Republic

Have a flexible travel schedule? Discover the best time to fly to Czech Republic from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to the Czech Republic

What is the cheapest month to book a flight from Illinois to Czech Republic?

Currently, February is the cheapest month in which you can book a flight from Illinois to Czech Republic (average of $426). Flying from Illinois to Czech Republic in June is currently the most expensive (average of $896). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to CZ?

Find hourly flight availability from Illinois to Czech Republic. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 14, 2025.

When flying from Illinois to Czech Republic, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 18% versus a flight in the morning.

What is the cheapest day to fly from Illinois to Czech Republic?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Czech Republic. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Czech Republic flight should consider departing on Sunday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Czech Republic. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Czech Republic?

    Lufthansa, Scandinavian Airlines, and United Airlines can get you from Illinois to Czech Republic in just under 14h 25m. Your travel time can differ by up to 17h. The distance between Illinois and Czech Republic is about 4783 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Czech Republic one-way?

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $250. Users have also found prices from $277 and $279 on TAP AIR PORTUGAL and Scandinavian Airlines, respectively.

  • Can I find deals for flights from Illinois to Czech Republic that include hotel bookings?

    Yes. In addition to deals on Illinois to Czech Republic flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Czech Republic?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Czech Republic.

  • Can I find deals for business class flights from Illinois to Czech Republic?

    Yes. Cheapflights offers flight deals from Illinois to Czech Republic by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Czech Republic?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Czech Republic (average of $426). Flying from Illinois to Czech Republic in June is currently the most expensive (average of $896). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Illinois to Czech Republic

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Illinois to Czech Republic

Discover the top 10 airlines that operate flights from Illinois to Czech Republic. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$421Average$486FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$453Average$606FlexibilityNo cancel feeOn-time76%
LOTCheapest$468Average$698FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$518Average$592FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$519Average$718FlexibilityNo cancel feeOn-time76%
SWISSCheapest$579Average$838FlexibilityNo cancel feeOn-time79%
British AirwaysCheapest$600Average$816FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$605Average$837FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$607Average$801FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$625Average$883FlexibilityNo cancel feeOn-time69%

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