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Cheap flights from St. Louis to Prague from $280

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 Prague departing on 10/13. 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 Prague

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:40 pm - 10:50 am
STL
-
PRG
13h 10m
1 stop
Multiple Airlines Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
$807Multiple Airlines
Sun, Aug 9 - Tue, Aug 25
Air Canada Logo
2:40 pm - 10:50 am
STL
-
PRG
13h 10m
1 stop
Air Canada Logo
6:10 am - 6:42 pm
PRG
-
STL
19h 32m
2 stops
$812Air Canada
Sun, Aug 9 - Tue, Aug 25
Air Canada Logo
12:10 pm - 11:00 am
STL
-
PRG
15h 50m
2 stops
Air Canada Logo
6:10 am - 6:42 pm
PRG
-
STL
19h 32m
2 stops
$816Air Canada
Sun, Aug 9 - Tue, Aug 25
Multiple Airlines Logo
2:40 pm - 10:50 am
STL
-
PRG
13h 10m
1 stop
Multiple Airlines Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
$836Multiple Airlines
Sun, Aug 9 - Tue, Aug 25
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
$838Scandinavian Airlines
Thu, Sep 10 - Fri, Sep 18
Delta Logo
7:00 am - 9:00 am
STL
-
PRG
19h 00m
1 stop
Delta Logo
2:30 pm - 5:06 pm
PRG
-
STL
32h 36m
2 stops
$849Delta
Tue, Oct 20 - Mon, Oct 26
American Airlines Logo
6:45 pm - 5:05 pm
STL
-
PRG
15h 20m
2 stops
American Airlines Logo
10:15 am - 10:55 pm
PRG
-
STL
19h 40m
2 stops
$850American Airlines
Sun, Aug 9 - Tue, Aug 25
Delta Logo
10:15 am - 3:00 pm
STL
-
PRG
21h 45m
2 stops
Delta Logo
2:30 pm - 5:06 pm
PRG
-
STL
32h 36m
2 stops
$853Delta
Tue, Oct 20 - Mon, Oct 26
Lufthansa Logo
7:04 pm - 4:05 pm
STL
-
PRG
14h 01m
2 stops
Lufthansa Logo
10:20 am - 1:45 pm
PRG
-
STL
34h 25m
1 stop
$856Lufthansa
Tue, Dec 29 - Tue, Jan 5
Multiple Airlines Logo
8:20 am - 8:30 pm
STL
-
PRG
29h 10m
2 stops
Multiple Airlines Logo
8:50 am - 7:40 pm
PRG
-
STL
17h 50m
2 stops
$865Multiple Airlines
Sun, Aug 30 - Tue, Sep 15

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Delta flights from St. Louis to Prague

Our best Delta deals on St. Louis to Prague flight tickets
Delta
Oct 20
STL7:00 amLambert-St Louis
19h 00m
1 stop
PRG9:00 amVáclav Havel Prague
Oct 26
PRG2:30 pmVáclav Havel Prague
32h 36m
2 stops
STL5:06 pmLambert-St Louis
$849
Delta
Oct 20
STL10:15 amLambert-St Louis
21h 45m
2 stops
PRG3:00 pmVáclav Havel Prague
Oct 26
PRG2:30 pmVáclav Havel Prague
32h 36m
2 stops
STL5:06 pmLambert-St Louis
$853
Delta
Oct 20
STL2:00 pmLambert-St Louis
18h 00m
2 stops
PRG3:00 pmVáclav Havel Prague
Oct 25
PRG2:30 pmVáclav Havel Prague
24h 19m
2 stops
STL8:49 amLambert-St Louis
$913

American Airlines flights from St. Louis to Prague

Our best American Airlines deals on St. Louis to Prague flight tickets
American Airlines
Aug 9
STL6:45 pmLambert-St Louis
15h 20m
2 stops
PRG5:05 pmVáclav Havel Prague
Aug 25
PRG10:15 amVáclav Havel Prague
19h 40m
2 stops
STL10:55 pmLambert-St Louis
$850
American Airlines
Aug 26
STL1:25 pmLambert-St Louis
16h 50m
2 stops
PRG1:15 pmVáclav Havel Prague
Sep 10
PRG10:15 amVáclav Havel Prague
13h 50m
1 stop
STL5:05 pmLambert-St Louis
$893
American Airlines
Aug 26
STL6:00 amLambert-St Louis
19h 15m
1 stop
PRG8:15 amVáclav Havel Prague
Sep 10
PRG10:15 amVáclav Havel Prague
13h 50m
1 stop
STL5:05 pmLambert-St Louis
$897

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Prague 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 2, 2026.
Use the filters below to find and compare flights from St. Louis to Prague 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

Sun 8/9

2:40 pm-10:50 am

1 stop13h 10m

Václav Havel Prague

Tue 8/25

6:10 am-1:25 pm

1 stop14h 15m

$807

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 8/9

2:40 pm-10:50 am

1 stop13h 10m

Václav Havel Prague

Tue 8/25

6:10 am-6:42 pm

2 stops19h 32m

$812

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 8/9

12:10 pm-11:00 am

2 stops15h 50m

Václav Havel Prague

Tue 8/25

6:10 am-6:42 pm

2 stops19h 32m

$816

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 8/9

2:40 pm-10:50 am

1 stop13h 10m

Václav Havel Prague

Tue 8/25

6:10 am-1:25 pm

1 stop14h 15m

$836

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Thu 9/10

1:40 pm-2:40 pm

2 stops18h 00m

Václav Havel Prague

Fri 9/18

8:55 pm-11:42 pm

2 stops33h 47m

$838

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 10/20

7:00 am-9:00 am

1 stop19h 00m

Václav Havel Prague

Mon 10/26

2:30 pm-5:06 pm

2 stops32h 36m

$849

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 8/9

6:45 pm-5:05 pm

2 stops15h 20m

Václav Havel Prague

Tue 8/25

10:15 am-10:55 pm

2 stops19h 40m

$850

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 10/20

10:15 am-3:00 pm

2 stops21h 45m

Václav Havel Prague

Mon 10/26

2:30 pm-5:06 pm

2 stops32h 36m

$853

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 12/29

7:04 pm-4:05 pm

2 stops14h 01m

Václav Havel Prague

Tue 1/5

10:20 am-1:45 pm

1 stop34h 25m

$856

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 8/30

8:20 am-8:30 pm

2 stops29h 10m

Václav Havel Prague

Tue 9/15

8:50 am-7:40 pm

2 stops17h 50m

$865

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 Prague from

How to get the cheapest flight ticket from St. Louis to Prague

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 typical price of a round-trip flight between St. Louis and Prague?

What is the cheapest month to fly to Prague?

In general, January is the cheapest month to fly from St. Louis to Prague. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Prague during the month of January, then departing from St. Louis during the month April is also very affordable. Most momondo users find prices during this month for around $620.

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

You could potentially save up to 28% on your flight if you consider stops on a St. Louis to Prague flight.

When to book flights from St. Louis to Prague

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Prague according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Prague (STL to PRG) flight deals and tips

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

Fastest flight time

16h 00m

Direct flights

None
The fastest flight from St. Louis to Prague takes 16h 00m
There are no direct flights from St. Louis to Prague. There are no popular flight routes from St. Louis to Prague.
Search flight deals

Frequently asked questions about flying from St. Louis to Prague

  • How far is Lambert-St Louis to Václav Havel Prague by plane?

    Lambert-St Louis and Václav Havel Prague are 4789.6 mi apart from one another. Flights usually cover this in 16h 00m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Václav Havel Prague Airport?

    Prices for flights from Lambert-St Louis Airport to Václav Havel Prague Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Václav Havel Prague Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Václav Havel Prague Airport?

    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 Lambert-St Louis Airport to Václav Havel Prague Airport.

  • What documentation or ID do you need to fly to Václav Havel Prague Airport?

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

  • What is the most popular airline from St. Louis to Prague?

Best airlines flying from St. Louis to Prague

Compare and see reviews for airlines that fly from St. Louis to Prague with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $409Free CancellationRating
7.4
9,924 reviews
Search United Airlines flights
American AirlinesPriceFrom $511Free CancellationRating
7.1
11,771 reviews
Search American Airlines flights
LufthansaPriceFrom $572Free CancellationRating
6.8
8,107 reviews
Search Lufthansa flights
DeltaPriceFrom $908Free CancellationRating
7.8
8,452 reviews
Search Delta flights

Traveling to a place near Prague?

Book flights to Prague if you plan to visit one of these locations
Český Krumlov
Pilsen
Liberec

Why use momondo?

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

It is quick and easy to find St. Louis to Prague flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Prague that suits you.

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

Yes. All flights to Prague from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for St. Louis to Prague flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Prague right now. Can momondo alert me if prices change?

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

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Fly your favorite airline to Prague

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Lufthansa
Delta
United Airlines
American Airlines