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Cheap flights from Illinois to the Czech Republic 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 the Czech Republic departing on 1/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Illinois to the Czech Republic

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
6:40 pm - 4:05 pmSTL-PRG
14h 25m2 stops
Lufthansa Logo
7:35 am - 10:00 pmPRG-STL
21h 25m2 stops
$500Lufthansa
Find Deal
Mon, Feb 9 - Fri, Feb 20
United Airlines Logo
3:11 pm - 4:05 pmSTL-PRG
17h 54m2 stops
United Airlines Logo
7:35 am - 10:59 pmPRG-STL
22h 24m2 stops
$506United Airlines
Find Deal
Mon, Feb 9 - Fri, Feb 20
Multiple Airlines Logo
3:35 pm - 2:15 pmORD-PRG
39h 40m2 stops
Multiple Airlines Logo
2:50 pm - 6:51 pmPRG-ORD
35h 01m2 stops
$507Multiple Airlines
Find Deal
Sat, Jan 17 - Mon, Jan 26
LOT Logo
9:55 pm - 6:50 pmORD-PRG
13h 55m1 stop
LOT Logo
9:35 am - 8:00 pmPRG-ORD
17h 25m1 stop
$508LOT
Find Deal
Wed, Dec 10 - Sun, Dec 14
Scandinavian Airlines Logo
7:20 pm - 6:40 pmORD-PRG
16h 20m1 stop
Scandinavian Airlines Logo
10:25 am - 4:45 pmPRG-ORD
13h 20m1 stop
$509Scandinavian Airlines
Find Deal
Mon, Nov 24 - Thu, Nov 27
United Airlines Logo
6:21 pm - 1:05 pmORD-PRG
35h 44m2 stops
United Airlines Logo
6:15 am - 1:01 pmPRG-ORD
37h 46m2 stops
$511United Airlines
Find Deal
Tue, Dec 30 - Fri, Jan 9
Air Canada Logo
12:50 pm - 10:50 amORD-PRG
15h 00m2 stops
Air Canada Logo
1:45 pm - 7:30 pmPRG-ORD
36h 45m2 stops
$512Air Canada
Find Deal
Wed, Feb 11 - Mon, Feb 16
Multiple Airlines Logo
8:00 am - 9:35 amORD-PRG
18h 35m2 stops
Multiple Airlines Logo
8:15 pm - 4:20 pmPRG-ORD
27h 05m1 stop
$513Multiple Airlines
Find Deal
Mon, Dec 1 - Mon, Dec 15
Scandinavian Airlines Logo
7:10 pm - 8:10 pmORD-PRG
18h 00m1 stop
Scandinavian Airlines Logo
8:50 pm - 5:45 pmPRG-ORD
26h 55m1 stop
$515Scandinavian Airlines
Find Deal
Fri, Mar 6 - Sun, Mar 22
Air Canada Logo
5:52 pm - 10:50 amORD-PRG
33h 58m2 stops
Air Canada Logo
11:50 am - 3:10 pmPRG-ORD
34h 20m2 stops
$518Air Canada
Find Deal
Tue, Jan 20 - Mon, Jan 26

Lufthansa flights from Illinois to Czech Republic

Our best Lufthansa deals on Illinois to Czech Republic flight tickets
Lufthansa
Feb 9
STL6:40 pmLambert-St Louis
14h 25m
2 stops
PRG4:05 pmVáclav Havel Prague
Feb 20
PRG7:35 amVáclav Havel Prague
21h 25m
2 stops
STL10:00 pmLambert-St Louis
$500
Find similar
Lufthansa
Nov 14
ORD9:50 pmChicago O'Hare Intl
17h 35m
1 stop
PRG10:25 pmVáclav Havel Prague
Nov 18
PRG7:25 amVáclav Havel Prague
12h 45m
1 stop
ORD1:10 pmChicago O'Hare Intl
$513
Find similar
Lufthansa
Dec 3
ORD10:35 pmChicago O'Hare Intl
12h 30m
1 stop
PRG6:05 pmVáclav Havel Prague
Dec 7
PRG3:00 pmVáclav Havel Prague
12h 05m
1 stop
ORD8:05 pmChicago O'Hare Intl
$524
Find similar

United Airlines flights from Illinois to Czech Republic

Our best United Airlines deals on Illinois to Czech Republic flight tickets
United Airlines
Feb 9
STL3:11 pmLambert-St Louis
17h 54m
2 stops
PRG4:05 pmVáclav Havel Prague
Feb 20
PRG7:35 amVáclav Havel Prague
22h 24m
2 stops
STL10:59 pmLambert-St Louis
$506
Find similar
United Airlines
Dec 30
ORD6:21 pmChicago O'Hare Intl
35h 44m
2 stops
PRG1:05 pmVáclav Havel Prague
Jan 9
PRG6:15 amVáclav Havel Prague
37h 46m
2 stops
ORD1:01 pmChicago O'Hare Intl
$511
Find similar
United Airlines
Dec 3
ORD10:35 pmChicago O'Hare Intl
16h 50m
1 stop
PRG10:25 pmVáclav Havel Prague
Dec 8
PRG1:45 pmVáclav Havel Prague
31h 25m
1 stop
ORD2:10 pmChicago O'Hare Intl
$514
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 10, 2025.
Use the filters below to find and compare flights from Illinois to the Czech Republic that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 2/9

6:40 pm-4:05 pm

2 stops14h 25m

Václav Havel Prague

Fri 2/20

7:35 am-10:00 pm

2 stops21h 25m

$500

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 2/9

3:11 pm-4:05 pm

2 stops17h 54m

Václav Havel Prague

Fri 2/20

7:35 am-10:59 pm

2 stops22h 24m

$506

ChicagoPrague

ORD - PRG

ORDPRG

Chicago O'Hare Intl

Sat 1/17

3:35 pm-2:15 pm

2 stops39h 40m

Václav Havel Prague

Mon 1/26

2:50 pm-6:51 pm

2 stops35h 01m

$507

ChicagoPrague

ORD - PRG

ORDPRG

Chicago O'Hare Intl

Wed 12/10

9:55 pm-6:50 pm

1 stop13h 55m

Václav Havel Prague

Sun 12/14

9:35 am-8:00 pm

1 stop17h 25m

$508

ChicagoPrague

ORD - PRG

ORDPRG

Chicago O'Hare Intl

Mon 11/24

7:20 pm-6:40 pm

1 stop16h 20m

Václav Havel Prague

Thu 11/27

10:25 am-4:45 pm

1 stop13h 20m

$509

ChicagoPrague

ORD - PRG

ORDPRG

Chicago O'Hare Intl

Tue 12/30

6:21 pm-1:05 pm

2 stops35h 44m

Václav Havel Prague

Fri 1/9

6:15 am-1:01 pm

2 stops37h 46m

$511

ChicagoPrague

ORD - PRG

ORDPRG

Chicago O'Hare Intl

Wed 2/11

12:50 pm-10:50 am

2 stops15h 00m

Václav Havel Prague

Mon 2/16

1:45 pm-7:30 pm

2 stops36h 45m

$512

ChicagoPrague

ORD - PRG

ORDPRG

Chicago O'Hare Intl

Mon 12/1

8:00 am-9:35 am

2 stops18h 35m

Václav Havel Prague

Mon 12/15

8:15 pm-4:20 pm

1 stop27h 05m

$513

ChicagoPrague

ORD - PRG

ORDPRG

Chicago O'Hare Intl

Fri 3/6

7:10 pm-8:10 pm

1 stop18h 00m

Václav Havel Prague

Sun 3/22

8:50 pm-5:45 pm

1 stop26h 55m

$515

ChicagoPrague

ORD - PRG

ORDPRG

Chicago O'Hare Intl

Tue 1/20

5:52 pm-10:50 am

2 stops33h 58m

Václav Havel Prague

Mon 1/26

11:50 am-3:10 pm

2 stops34h 20m

$518

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 the Czech Republic from

How to get the cheapest flight ticket from Illinois to Czech Republic

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 Czech Republic?

In general, April is the cheapest month to fly from Illinois to Czech Republic. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $598. If you aren’t able to travel to Czech Republic during the month of April, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $599.

What is the cheapest day to depart on your flight to Czech Republic?

The cheapest day to depart from Illinois to Czech Republic is on a Wednesday when prices can be found for as low as $678. The most expensive day to fly to Czech Republic is Monday, with ticket prices averaging around $836.

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

In the morning is the cheapest time of day to fly from Illinois to Czech Republic when you can find flight prices for as low as $647. Flying to Czech Republic in the morning is an ideal time because this is during off-peak travel hours. Flights to Czech Republic are more costly at noon, with an average ticket price of $916. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Czech Republic?

You are more likely to see cheaper flights to Czech Republic from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Czech Republic for around $747 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Czech Republic from Illinois for as low as $614 on momondo.

Cheap Illinois to Czech Republic flight deals and tips

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

Direct flights

None
There are no direct flights from Illinois to Czech Republic. There are no popular flight routes from Illinois to Czech Republic.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Czech Republic?

    Prices for flights from Illinois to Czech Republic are refreshed on a daily basis.

  • How many operators does momondo search for flights from Illinois to Czech Republic?

  • How old do you have to be to fly from Illinois to Czech Republic?

    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 Czech Republic.

  • What documentation or ID do you need to fly to Czech Republic?

    The travel and health documents you'll need for your trip to Czech Republic 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 Czech Republic. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Illinois to Czech Republic

Compare and see reviews for airlines that fly from Illinois to Czech Republic with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $420Free CancellationRating
7.4
1,570 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $453Free CancellationRating
7.0
574 reviews
Search Icelandair flights
LOTPriceFrom $468Free CancellationRating
7.6
1,135 reviews
Search LOT flights
Turkish AirlinesPriceFrom $518Free CancellationRating
7.3
4,037 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $558Free CancellationRating
6.8
7,562 reviews
Search Lufthansa flights
British AirwaysPriceFrom $574Free CancellationRating
6.7
7,508 reviews
Search British Airways flights
SWISSPriceFrom $579Free CancellationRating
7.5
1,781 reviews
Search SWISS flights
DeltaPriceFrom $590Free CancellationRating
7.9
8,004 reviews
Search Delta flights
United AirlinesPriceFrom $593Free CancellationRating
7.4
9,012 reviews
Search United Airlines flights
Aer LingusPriceFrom $605Free CancellationRating
7.2
1,366 reviews
Search Aer Lingus flights

Why use momondo?

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

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

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

All flight searches from Illinois to Czech Republic on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Illinois to Czech Republic?

momondo helps you find the best flight between Illinois and Czech Republic by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Czech Republic, momondo offers a useful price alert feature which will track prices for flights to Czech Republic from Illinois and alert you when they change.

An easier way to manage your Czech Republic trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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