Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Prague from $350

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 8/10. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Prague

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
1:30 pm - 2:40 pm
STL
-
PRG
18h 10m
2 stops
Scandinavian Airlines Logo
8:55 pm - 11:37 pm
PRG
-
STL
33h 42m
2 stops
$796Scandinavian Airlines
Sun, Sep 6 - Wed, Sep 16
Scandinavian Airlines Logo
3:42 pm - 9:40 am
STL
-
PRG
34h 58m
2 stops
Scandinavian Airlines Logo
7:20 pm - 11:39 pm
PRG
-
STL
34h 19m
2 stops
$808Scandinavian Airlines
Tue, Oct 20 - Tue, Oct 27
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
$822Multiple Airlines
Sun, Sep 6 - Wed, Sep 16
Multiple Airlines Logo
12:10 pm - 12:45 pm
STL
-
PRG
17h 35m
2 stops
Multiple Airlines Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
$823Multiple Airlines
Sun, Sep 6 - Wed, Sep 16
United Airlines Logo
8:55 am - 10:50 am
STL
-
PRG
18h 55m
1 stop
United Airlines Logo
12:30 pm - 5:49 pm
PRG
-
STL
36h 19m
2 stops
$830United Airlines
Sun, Sep 6 - Wed, Sep 16
Air Canada Logo
5:32 pm - 10:50 am
STL
-
PRG
34h 18m
2 stops
Air Canada Logo
12:30 pm - 3:38 pm
PRG
-
STL
34h 08m
2 stops
$840Air Canada
Sat, Sep 5 - Wed, Sep 16
Delta Logo
6:00 am - 9:00 am
STL
-
PRG
20h 00m
1 stop
Delta Logo
11:00 am - 8:50 pm
PRG
-
STL
16h 50m
1 stop
$842Delta
Sun, Sep 6 - Tue, Sep 15
American Airlines Logo
8:06 pm - 8:10 pm
STL
-
PRG
17h 04m
2 stops
American Airlines Logo
10:15 am - 9:03 pm
PRG
-
STL
17h 48m
2 stops
$843American Airlines
Sun, Sep 6 - Wed, Sep 16
United Airlines Logo
5:32 pm - 10:50 am
STL
-
PRG
34h 18m
2 stops
United Airlines Logo
12:30 pm - 2:00 pm
PRG
-
STL
32h 30m
1 stop
$844United Airlines
Mon, Sep 7 - Wed, Sep 16
Delta Logo
7:20 am - 9:00 am
STL
-
PRG
18h 40m
2 stops
Delta Logo
11:00 am - 11:37 pm
PRG
-
STL
19h 37m
2 stops
$846Delta
Mon, Sep 7 - Fri, Sep 18

British Airways flights from St. Louis to Prague

Our best British Airways deals on St. Louis to Prague flight tickets
British Airways
Sep 10
STL11:18 amLambert-St Louis
13h 57m
1 stop
PRG8:15 amVáclav Havel Prague
Sep 18
PRG10:15 amVáclav Havel Prague
18h 08m
1 stop
STL9:23 pmLambert-St Louis
$887
British Airways
May 12
STL6:11 pmLambert-St Louis
31h 59m
2 stops
PRG9:10 amVáclav Havel Prague
May 18
PRG5:50 pmVáclav Havel Prague
32h 40m
1 stop
STL7:30 pmLambert-St Louis
$1,094
British Airways
May 12
STL9:35 pmLambert-St Louis
18h 50m
1 stop
PRG11:25 pmVáclav Havel Prague
May 18
PRG5:50 pmVáclav Havel Prague
32h 40m
1 stop
STL7:30 pmLambert-St Louis
$1,882

Scandinavian Airlines flights from St. Louis to Prague

Our best Scandinavian Airlines deals on St. Louis to Prague flight tickets
Scandinavian Airlines
Sep 6
STL1:30 pmLambert-St Louis
18h 10m
2 stops
PRG2:40 pmVáclav Havel Prague
Sep 16
PRG8:55 pmVáclav Havel Prague
33h 42m
2 stops
STL11:37 pmLambert-St Louis
$796
Scandinavian Airlines
Oct 20
STL3:42 pmLambert-St Louis
34h 58m
2 stops
PRG9:40 amVáclav Havel Prague
Oct 27
PRG7:20 pmVáclav Havel Prague
34h 19m
2 stops
STL11:39 pmLambert-St Louis
$808
Scandinavian Airlines
Oct 20
STL1:30 pmLambert-St Louis
23h 45m
2 stops
PRG8:15 pmVáclav Havel Prague
Oct 25
PRG3:00 pmVáclav Havel Prague
38h 39m
2 stops
STL11:39 pmLambert-St Louis
$928

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 May 11, 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

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 9/6

1:30 pm-2:40 pm

2 stops18h 10m

Václav Havel Prague

Wed 9/16

8:55 pm-11:37 pm

2 stops33h 42m

$796

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 10/20

3:42 pm-9:40 am

2 stops34h 58m

Václav Havel Prague

Tue 10/27

7:20 pm-11:39 pm

2 stops34h 19m

$808
Quickest round-trip

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 9/6

2:40 pm-10:50 am

1 stop13h 10m

Václav Havel Prague

Wed 9/16

6:10 am-1:25 pm

1 stop14h 15m

$822

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 9/6

12:10 pm-12:45 pm

2 stops17h 35m

Václav Havel Prague

Wed 9/16

6:10 am-1:25 pm

1 stop14h 15m

$823

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 9/6

8:55 am-10:50 am

1 stop18h 55m

Václav Havel Prague

Wed 9/16

12:30 pm-5:49 pm

2 stops36h 19m

$830

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sat 9/5

5:32 pm-10:50 am

2 stops34h 18m

Václav Havel Prague

Wed 9/16

12:30 pm-3:38 pm

2 stops34h 08m

$840

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 9/6

6:00 am-9:00 am

1 stop20h 00m

Václav Havel Prague

Tue 9/15

11:00 am-8:50 pm

1 stop16h 50m

$842

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 9/6

8:06 pm-8:10 pm

2 stops17h 04m

Václav Havel Prague

Wed 9/16

10:15 am-9:03 pm

2 stops17h 48m

$843

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 9/7

5:32 pm-10:50 am

2 stops34h 18m

Václav Havel Prague

Wed 9/16

12:30 pm-2:00 pm

1 stop32h 30m

$844

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 9/7

7:20 am-9:00 am

2 stops18h 40m

Václav Havel Prague

Fri 9/18

11:00 am-11:37 pm

2 stops19h 37m

$846

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $614.

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

You could potentially save up to 33% 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

13h 35m

Direct flights

None
The fastest flight from St. Louis to Prague takes 13h 35m
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 13h 35m, 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
9,700 reviews
Search United Airlines flights
LufthansaPriceFrom $572Free CancellationRating
6.8
7,992 reviews
Search Lufthansa flights
DeltaPriceFrom $908Free CancellationRating
7.9
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.

An easier way to manage your Prague 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 6/10
Wed 6/17
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the Czech Republic

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
British Airways