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$269+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PRG
jan 17 — jan 241
sáb 1/17
sáb 1/24
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 dezembro 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
qui 12/186:25 pmORD - PRG
1 stop21h 00mUnited Airlines
qui 12/253:10 pmPRG - ORD
1 stop11h 55mUnited Airlines
Deal found 12/17$776
This Expedia deal was found by Cheapflights users on 12/17. 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.
qui 12/186:25 pmORD - PRG
1 stop21h 00mMultiple Airlines
seg 12/228:15 pmPRG - ORD
1 stop23h 30mMultiple Airlines
Deal found 12/17$779
This Orbitz deal was found by Cheapflights users on 12/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/186:25 pmORD - PRG
1 stop21h 00mMultiple Airlines
qui 12/2510:00 amPRG - ORD
2 stops17h 10mMultiple Airlines
Deal found 12/17$782
This United Airlines deal was found by Cheapflights users on 12/17. 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.
qui 12/186:25 pmORD - PRG
1 stop21h 00mUnited Airlines
seg 12/2211:50 amPRG - ORD
2 stops18h 54mUnited Airlines
Deal found 12/17$786
This Mytrip deal was found by Cheapflights users on 12/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 12/236:35 pmORD - PRG
2 stops31h 10mMultiple Airlines
sáb 12/2710:30 amPRG - ORD
1 stop11h 50mMultiple Airlines
Deal found 12/17$805
This KAYAK deal was found by Cheapflights users on 12/15. 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.
qui 12/256:10 pmORD - PRG
2 stops55h 30mSWISS
qui 1/86:45 amPRG - ORD
2 stops38h 25mSWISS
Deal found 12/15$810
This United Airlines deal was found by Cheapflights users on 12/15. 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.
dom 12/289:05 pmORD - PRG
2 stops18h 20mUnited Airlines
sex 1/96:50 amPRG - ORD
2 stops17h 06mUnited Airlines
Deal found 12/15$811
This KAYAK deal was found by Cheapflights users on 12/15. 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.
qui 12/256:10 pmORD - PRG
2 stops55h 30mSWISS
qua 1/72:50 pmPRG - ORD
2 stops29h 55mSWISS
Deal found 12/15$819
This United Airlines deal was found by Cheapflights users on 12/15. 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.
dom 12/289:05 pmORD - PRG
2 stops18h 20mUnited Airlines
sáb 1/103:10 pmPRG - ORD
1 stop27h 00mUnited Airlines
Deal found 12/15$820
This KAYAK deal was found by Cheapflights users on 12/15. 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.
dom 12/289:05 pmORD - PRG
2 stops18h 20mLufthansa
sáb 1/103:10 pmPRG - ORD
1 stop27h 00mLufthansa
Deal found 12/15$825
This KAYAK deal was found by Cheapflights users on 12/15. 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.
dom 12/289:05 pmORD - PRG
2 stops18h 20mLufthansa
qui 1/81:45 pmPRG - ORD
2 stops28h 00mLufthansa
Deal found 12/15$841
This Delta deal was found by Cheapflights users on 12/15. 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.
dom 12/286:08 pmMDW - PRG
2 stops15h 57mDelta
qui 1/86:00 amPRG - MDW
2 stops18h 34mDelta
Deal found 12/15$1,368

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 dezembro 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$492
(oojo)

One-way from

$269
(Kiwi.com)

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 dezembro 18, 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

seg 4/20

11:14 am-5:00 pm

2 stops22h 46m

Václav Havel Prague

seg 4/27

8:55 pm-7:30 pm

1 stop29h 35m

$492

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

dom 1/25

6:40 pm-4:05 pm

2 stops14h 25m

Václav Havel Prague

dom 2/1

7:25 am-10:58 pm

2 stops22h 33m

$494

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

qua 4/22

10:00 pm-11:05 pm

1 stop18h 05m

Václav Havel Prague

qua 4/29

12:55 pm-7:30 pm

1 stop13h 35m

$496

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

ter 4/21

10:00 pm-9:15 am

1 stop28h 15m

Václav Havel Prague

seg 4/27

8:55 pm-7:30 pm

1 stop29h 35m

$496

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

ter 4/21

10:00 pm-9:15 am

1 stop28h 15m

Václav Havel Prague

qua 4/29

12:55 pm-7:30 pm

1 stop13h 35m

$496

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

ter 4/21

10:00 pm-9:15 am

1 stop28h 15m

Václav Havel Prague

ter 4/28

10:20 am-7:30 pm

1 stop16h 10m

$496

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

sex 2/6

9:57 am-1:05 pm

2 stops20h 08m

Václav Havel Prague

ter 2/10

7:25 am-3:29 pm

2 stops39h 04m

$505

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

dom 4/19

7:20 am-10:55 am

2 stops20h 35m

Václav Havel Prague

qua 4/29

2:30 pm-4:49 pm

2 stops33h 19m

$507

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

qua 4/22

2:18 pm-3:00 pm

2 stops17h 42m

Václav Havel Prague

ter 4/28

2:30 pm-3:58 pm

2 stops32h 28m

$507

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

sex 1/16

4:05 pm-1:55 pm

2 stops14h 50m

Václav Havel Prague

dom 1/25

10:30 am-10:58 pm

2 stops19h 28m

$508

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 56 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 dezembro 18, 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?

    British Airways, Lufthansa, and Air Serbia can get you from Illinois to Czech Republic in just under 14h 25m. Your travel time can differ by up to 18h 50m. 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

Browse thousands of different options on Cheapflights for your next trip

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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 dezembro 18, 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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