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Cheap flights from St. Louis to the Czech Republic from $423

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 11/12. 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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Cheap round-trip flights

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British Airways Logo
12:56 pm - 11:35 amSTL-PRG
15h 39m2 stops
British Airways Logo
10:20 am - 7:30 pmPRG-STL
16h 10m1 stop
$599British Airways
Find Deal
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
5:18 pm - 9:25 pmSTL-PRG
21h 07m2 stops
Multiple Airlines Logo
6:50 am - 3:24 pmPRG-STL
15h 34m2 stops
$600Multiple Airlines
Find Deal
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
4:05 pm - 12:45 pmSTL-PRG
13h 40m2 stops
Multiple Airlines Logo
6:10 am - 1:30 pmPRG-STL
14h 20m1 stop
$632Multiple Airlines
Find Deal
Tue, Mar 31 - Sun, Apr 5
Air Canada Logo
4:05 pm - 1:05 pmSTL-PRG
15h 00m2 stops
Air Canada Logo
6:00 am - 3:24 pmPRG-STL
16h 24m2 stops
$654Air Canada
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
4:50 pm - 2:05 pmSTL-PRG
15h 15m1 stop
United Airlines Logo
9:10 am - 7:25 pmPRG-STL
17h 15m2 stops
$663United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
4:05 pm - 10:25 pmSTL-PRG
24h 20m2 stops
United Airlines Logo
9:10 am - 7:25 pmPRG-STL
17h 15m2 stops
$670United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
Lufthansa Logo
4:50 pm - 9:50 amSTL-PRG
11h 00m1 stop
Lufthansa Logo
6:50 pm - 1:30 pmPRG-STL
25h 40m1 stop
$674Lufthansa
Find Deal
Fri, Mar 27 - Tue, Mar 31
Lufthansa Logo
4:50 pm - 9:50 amSTL-PRG
11h 00m1 stop
Lufthansa Logo
6:50 pm - 1:30 pmPRG-STL
25h 40m1 stop
$764Lufthansa
Find Deal
Fri, Mar 27 - Tue, Mar 31
Air Canada Logo
4:05 pm - 2:05 pmSTL-PRG
39h 00m2 stops
Air Canada Logo
10:00 am - 3:29 pmPRG-STL
36h 29m2 stops
$973Air Canada
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Thu, Dec 25 - Wed, Jan 7
KLM Logo
2:38 pm - 10:50 amSTL-PRG
13h 12m2 stops
KLM Logo
6:00 am - 5:00 pmPRG-STL
18h 00m2 stops
$1,177KLM
Find Deal
Thu, Dec 18 - Thu, Dec 25

British Airways flights from St. Louis to Czech Republic

Our best British Airways deals on St. Louis to Czech Republic flight tickets
British Airways
Apr 14
STL12:56 pmLambert-St Louis
15h 39m
2 stops
PRG11:35 amVáclav Havel Prague
Apr 21
PRG10:20 amVáclav Havel Prague
16h 10m
1 stop
STL7:30 pmLambert-St Louis
$599
Find similar
British Airways
May 3
STL10:00 pmLambert-St Louis
12h 00m
1 stop
PRG5:00 pmVáclav Havel Prague
May 9
PRG5:45 pmVáclav Havel Prague
32h 45m
1 stop
STL7:30 pmLambert-St Louis
$744
Find similar
British Airways
May 3
STL12:56 pmLambert-St Louis
17h 39m
2 stops
PRG1:35 pmVáclav Havel Prague
May 9
PRG5:45 pmVáclav Havel Prague
32h 45m
1 stop
STL7:30 pmLambert-St Louis
$773
Find similar

Scandinavian Airlines flights from St. Louis to Czech Republic

Our best Scandinavian Airlines deals on St. Louis to Czech Republic flight tickets
Scandinavian Airlines
Apr 14
STL1:30 pmLambert-St Louis
23h 10m
3 stops
PRG7:40 pmVáclav Havel Prague
Apr 21
PRG10:20 amVáclav Havel Prague
20h 18m
2 stops
STL11:38 pmLambert-St Louis
$660
Find similar
Scandinavian Airlines
Mar 31
STL1:00 pmLambert-St Louis
24h 15m
2 stops
PRG8:15 pmVáclav Havel Prague
Apr 4
PRG10:20 amVáclav Havel Prague
20h 20m
2 stops
STL11:40 pmLambert-St Louis
$775
Find similar
Scandinavian Airlines
Mar 31
STL10:00 amLambert-St Louis
26h 40m
3 stops
PRG7:40 pmVáclav Havel Prague
Apr 4
PRG10:20 amVáclav Havel Prague
20h 20m
2 stops
STL11:40 pmLambert-St Louis
$923
Find similar

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 November 5, 2025.
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

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 4/14

12:56 pm-11:35 am

2 stops15h 39m

Václav Havel Prague

Tue 4/21

10:20 am-7:30 pm

1 stop16h 10m

$599

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 4/14

5:18 pm-9:25 pm

2 stops21h 07m

Václav Havel Prague

Tue 4/21

6:50 am-3:24 pm

2 stops15h 34m

$600

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 3/31

4:05 pm-12:45 pm

2 stops13h 40m

Václav Havel Prague

Sun 4/5

6:10 am-1:30 pm

1 stop14h 20m

$632

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 3/27

4:05 pm-1:05 pm

2 stops15h 00m

Václav Havel Prague

Tue 3/31

6:00 am-3:24 pm

2 stops16h 24m

$654

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 3/27

4:50 pm-2:05 pm

1 stop15h 15m

Václav Havel Prague

Tue 3/31

9:10 am-7:25 pm

2 stops17h 15m

$663

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 3/27

4:05 pm-10:25 pm

2 stops24h 20m

Václav Havel Prague

Tue 3/31

9:10 am-7:25 pm

2 stops17h 15m

$670

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 3/27

4:50 pm-9:50 am

1 stop11h 00m

Václav Havel Prague

Tue 3/31

6:50 pm-1:30 pm

1 stop25h 40m

$674

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 3/27

4:50 pm-9:50 am

1 stop11h 00m

Václav Havel Prague

Tue 3/31

6:50 pm-1:30 pm

1 stop25h 40m

$764

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Thu 12/25

4:05 pm-2:05 pm

2 stops39h 00m

Václav Havel Prague

Wed 1/7

10:00 am-3:29 pm

2 stops36h 29m

$973

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Thu 12/18

2:38 pm-10:50 am

2 stops13h 12m

Václav Havel Prague

Thu 12/25

6:00 am-5:00 pm

2 stops18h 00m

$1,177

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, March 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 $659. If you aren’t able to travel to Czech Republic during the month of March, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $705.

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

The cheapest day to depart from St. Louis to Czech Republic is on a Thursday when prices can be found for as low as $983. The most expensive day to fly to Czech Republic is Sunday, with ticket prices averaging around $1,216.

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 St. Louis to Czech Republic when you can find flight prices for as low as $1,013. 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 $1,216. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Direct flights

None
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

  • 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
British AirwaysPriceFrom $582Free CancellationRating
6.7
7,495 reviews
Search British Airways flights
United AirlinesPriceFrom $655Free CancellationRating
7.4
9,000 reviews
Search United Airlines flights
LufthansaPriceFrom $683Free CancellationRating
6.8
7,553 reviews
Search Lufthansa flights
DeltaPriceFrom $728Free CancellationRating
7.9
8,004 reviews
Search Delta flights
KLMPriceFrom $731Free CancellationRating
7.7
1,405 reviews
Search KLM flights
Air CanadaPriceFrom $745Free CancellationRating
7.1
10,404 reviews
Search Air Canada 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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