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Cheap flights from St. Louis to the Czech Republic from $420

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to the Czech Republic departing on 9/16. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to the Czech Republic

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
7:04 pm - 6:20 pm
STL
-
PRG
16h 16m
2 stops
Lufthansa Logo
7:15 am - 1:45 pm
PRG
-
STL
13h 30m
1 stop
$782Lufthansa
Wed, Dec 2 - Fri, Dec 11
Lufthansa Logo
7:04 pm - 6:20 pm
STL
-
PRG
16h 16m
2 stops
Lufthansa Logo
10:20 am - 11:25 pm
PRG
-
STL
20h 05m
2 stops
$789Lufthansa
Wed, Dec 2 - Fri, Dec 11
Delta Logo
5:37 pm - 5:05 pm
STL
-
PRG
16h 28m
2 stops
Delta Logo
8:55 am - 8:51 pm
PRG
-
STL
18h 56m
2 stops
$814Delta
Wed, Dec 2 - Thu, Dec 10
Aer Lingus Logo
8:55 am - 12:00 pm
STL
-
PRG
20h 05m
2 stops
Aer Lingus Logo
11:40 am - 11:58 pm
PRG
-
STL
18h 18m
2 stops
$847Aer Lingus
Sat, Oct 24 - Fri, Oct 30
Scandinavian Airlines Logo
1:40 pm - 2:40 pm
STL
-
PRG
18h 00m
2 stops
Scandinavian Airlines Logo
8:55 pm - 11:42 pm
PRG
-
STL
33h 47m
2 stops
$854Scandinavian Airlines
Thu, Sep 10 - Thu, Sep 17
United Airlines Logo
4:05 pm - 9:40 am
STL
-
PRG
34h 35m
2 stops
United Airlines Logo
2:50 pm - 3:26 pm
PRG
-
STL
31h 36m
2 stops
$878United Airlines
Sat, Dec 12 - Sat, Dec 19
United Airlines Logo
4:05 pm - 10:45 am
STL
-
PRG
35h 40m
2 stops
United Airlines Logo
2:50 pm - 1:45 pm
PRG
-
STL
29h 55m
1 stop
$890United Airlines
Sat, Dec 12 - Sat, Dec 19
Delta Logo
2:38 pm - 5:05 pm
STL
-
PRG
20h 27m
2 stops
Delta Logo
11:35 am - 11:54 pm
PRG
-
STL
19h 19m
2 stops
$911Delta
Sun, Oct 25 - Sun, Nov 1
American Airlines Logo
9:40 pm - 11:15 pm
STL
-
PRG
18h 35m
1 stop
American Airlines Logo
10:15 am - 9:44 pm
PRG
-
STL
18h 29m
1 stop
$925American Airlines
Sun, Aug 30 - Tue, Sep 15
American Airlines Logo
1:25 pm - 1:35 pm
STL
-
PRG
17h 10m
2 stops
American Airlines Logo
10:15 am - 9:44 pm
PRG
-
STL
18h 29m
1 stop
$929American Airlines
Sun, Aug 30 - Tue, Sep 15

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United Airlines flights from St. Louis to Czech Republic

Our best United Airlines deals on St. Louis to Czech Republic flight tickets
United Airlines
Sep 9
STL3:32 pmLambert-St Louis
19h 23m
2 stops
PRG5:55 pmVáclav Havel Prague
Sep 16
PRG12:30 pmVáclav Havel Prague
30h 27m
2 stops
STL11:57 amLambert-St Louis
$894
United Airlines
Sep 9
STL3:30 pmLambert-St Louis
19h 00m
1 stop
PRG5:30 pmVáclav Havel Prague
Sep 16
PRG12:30 pmVáclav Havel Prague
30h 27m
2 stops
STL11:57 amLambert-St Louis
$895
United Airlines
Oct 6
STL5:36 pmLambert-St Louis
32h 19m
2 stops
PRG8:55 amVáclav Havel Prague
Oct 20
PRG6:10 amVáclav Havel Prague
14h 15m
1 stop
STL1:25 pmLambert-St Louis
$906

Scandinavian Airlines flights from St. Louis to Czech Republic

Our best Scandinavian Airlines deals on St. Louis to Czech Republic flight tickets
Scandinavian Airlines
Sep 10
STL1:40 pmLambert-St Louis
18h 00m
2 stops
PRG2:40 pmVáclav Havel Prague
Sep 18
PRG8:55 pmVáclav Havel Prague
33h 47m
2 stops
STL11:42 pmLambert-St Louis
$854
Scandinavian Airlines
Sep 10
STL1:40 pmLambert-St Louis
18h 00m
2 stops
PRG2:40 pmVáclav Havel Prague
Sep 18
PRG10:20 amVáclav Havel Prague
20h 22m
2 stops
STL11:42 pmLambert-St Louis
$856
Scandinavian Airlines
Oct 24
STL2:25 pmLambert-St Louis
17h 55m
2 stops
PRG3:20 pmVáclav Havel Prague
Oct 31
PRG8:50 pmVáclav Havel Prague
30h 06m
2 stops
STL8:56 pmLambert-St Louis
$878

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis 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 July 31, 2026.
Use the filters below to find and compare flights from St. Louis to the Czech Republic that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 12/2

7:04 pm-6:20 pm

2 stops16h 16m

Václav Havel Prague

Fri 12/11

7:15 am-1:45 pm

1 stop13h 30m

$782

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 12/2

7:04 pm-6:20 pm

2 stops16h 16m

Václav Havel Prague

Fri 12/11

10:20 am-11:25 pm

2 stops20h 05m

$789

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 12/2

5:37 pm-5:05 pm

2 stops16h 28m

Václav Havel Prague

Thu 12/10

8:55 am-8:51 pm

2 stops18h 56m

$814

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sat 10/24

8:55 am-12:00 pm

2 stops20h 05m

Václav Havel Prague

Fri 10/30

11:40 am-11:58 pm

2 stops18h 18m

$847

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Thu 9/10

1:40 pm-2:40 pm

2 stops18h 00m

Václav Havel Prague

Thu 9/17

8:55 pm-11:42 pm

2 stops33h 47m

$854

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sat 12/12

4:05 pm-9:40 am

2 stops34h 35m

Václav Havel Prague

Sat 12/19

2:50 pm-3:26 pm

2 stops31h 36m

$878

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sat 12/12

4:05 pm-10:45 am

2 stops35h 40m

Václav Havel Prague

Sat 12/19

2:50 pm-1:45 pm

1 stop29h 55m

$890

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 10/25

2:38 pm-5:05 pm

2 stops20h 27m

Václav Havel Prague

Sun 11/1

11:35 am-11:54 pm

2 stops19h 19m

$911

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 8/30

9:40 pm-11:15 pm

1 stop18h 35m

Václav Havel Prague

Tue 9/15

10:15 am-9:44 pm

1 stop18h 29m

$925

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 8/30

1:25 pm-1:35 pm

2 stops17h 10m

Václav Havel Prague

Tue 9/15

10:15 am-9:44 pm

1 stop18h 29m

$929

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 St. Louis 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, January is the cheapest month to fly from St. Louis to Czech Republic. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel to Czech Republic during the month of January, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $620.

Can stopping save me money on St. Louis to Czech Republic flights?

You could potentially save up to 3% on your flight if you consider stops on a St. Louis to Czech Republic flight.

Cheap St. Louis to Czech Republic flight deals and tips

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

Fastest flight time

15h 10m

Direct flights

None
The fastest flight from St. Louis to Czech Republic takes 15h 10m
There are no direct flights from St. Louis to Czech Republic. There are no popular flight routes from St. Louis to Czech Republic.
Search flight deals

Frequently asked questions about flying from St. Louis to the Czech Republic

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Czech Republic?

    Prices for flights from Lambert-St Louis Airport to Czech Republic are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Czech Republic?

  • How old do you have to be to fly from Lambert-St Louis Airport to Czech Republic?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Czech Republic.

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

    The necessary travel and health documents for your Czech Republic trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Czech Republic

Compare and see reviews for airlines that fly from St. Louis to Czech Republic with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $500Free CancellationRating
7.4
10,052 reviews
Search United Airlines flights
American AirlinesPriceFrom $511Free CancellationRating
7.1
11,843 reviews
Search American Airlines flights
LufthansaPriceFrom $572Free CancellationRating
6.8
8,166 reviews
Search Lufthansa flights
DeltaPriceFrom $908Free CancellationRating
7.8
8,487 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Czech Republic?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Czech Republic. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Czech Republic with flexible booking policies on momondo?

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

How can momondo help me find flights from St. Louis to Czech Republic?

Once all potential St. Louis to Czech Republic 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 St. Louis to Czech Republic right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Czech Republic now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Czech Republic and let you know when they change.

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