STL - PRG

$840 Find Cheap Flights from St. Louis to Prague - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$764
Typical prices: $782-$1,089
Finnair
Thu 3/1Thu 3/15
STL - PRG • 2 stops
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Prague. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
April
Cheapest • 24% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Frankfurt am Main (FRA)
Cheapest • Avg $795 (round-trip)
Toronto Pearson Intl (YYZ)
Shortest trip • 14h 04m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from St. Louis to Prague (STL-PRG)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Prague

Mon, Mar 1 - Mon, Mar 15
Finnair Logo
12:08 pm - 6:50 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
23h 42m2 stops Dallas/Fort Worth Helsinki-Vantaa
Finnair Logo
7:35 pm - 11:39 pmPRG  Václav Havel Prague-STL Lambert-St Louis
34h 04m2 stops Helsinki-Vantaa Miami
$764Finnair
Wed, Mar 3 - Fri, Mar 5
United Airlines Logo
1:08 pm - 1:55 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
17h 47m2 stops Chicago O'Hare Intl Zurich
United Airlines Logo
7:05 am - 1:45 pmPRG  Václav Havel Prague-STL Lambert-St Louis
13h 40m1 stop Frankfurt am Main
$771United Airlines
Wed, Mar 3 - Fri, Mar 5
United Airlines Logo
8:30 am - 4:05 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
24h 35m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss
United Airlines Logo
7:05 am - 1:45 pmPRG  Václav Havel Prague-STL Lambert-St Louis
13h 40m1 stop Frankfurt am Main
$772United Airlines
Mon, Apr 19 - Wed, Apr 21
British Airways Logo
9:00 pm - 5:00 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
13h 00m1 stop London Heathrow
British Airways Logo
5:15 pm - 7:30 pmPRG  Václav Havel Prague-STL Lambert-St Louis
33h 15m1 stop London Heathrow
$776British Airways
Mon, Apr 19 - Wed, Apr 21
United Airlines Logo
7:30 am - 1:55 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
23h 25m2 stops Chicago O'Hare Intl Zurich
United Airlines Logo
11:30 am - 3:26 pmPRG  Václav Havel Prague-STL Lambert-St Louis
34h 56m2 stops Frankfurt am Main Toronto Pearson Intl
$779United Airlines
Mon, Apr 19 - Wed, Apr 21
British Airways Logo
9:00 pm - 5:00 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
13h 00m1 stop London Heathrow
British Airways Logo
5:15 pm - 7:30 pmPRG  Václav Havel Prague-STL Lambert-St Louis
33h 15m1 stop London Heathrow
$780British Airways
Thu, Apr 1 - Thu, Apr 15
Lufthansa Logo
3:30 pm - 10:50 amSTL  Lambert-St Louis-PRG Václav Havel Prague
12h 20m1 stop Frankfurt am Main
Lufthansa Logo
6:00 am - 1:25 pmPRG  Václav Havel Prague-STL Lambert-St Louis
14h 25m1 stop Frankfurt am Main
$823Lufthansa
Thu, Apr 1 - Thu, Apr 15
Delta Logo
5:45 pm - 3:00 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
14h 15m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle
Delta Logo
6:00 am - 8:49 pmPRG  Václav Havel Prague-STL Lambert-St Louis
21h 49m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$830Delta
Thu, Apr 1 - Thu, Apr 15
Delta Logo
5:45 pm - 3:00 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
14h 15m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle
Delta Logo
6:05 am - 8:49 pmPRG  Václav Havel Prague-STL Lambert-St Louis
21h 44m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$830Delta
Sun, Feb 7 - Tue, Jun 8
Lufthansa Logo
1:17 pm - 4:05 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
19h 48m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
6:00 am - 1:25 pmPRG  Václav Havel Prague-STL Lambert-St Louis
14h 25m1 stop Frankfurt am Main
$839Lufthansa
Booking Insights

Price, demand and travel trends for St. Louis to Prague flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from St. Louis to Prague?

Round-trip flights from St. Louis to Prague typically range from $782 to $1,089. The lowest price found in the past 5 days was $764, on Finnair.

What's the cheapest day of the week to fly from St. Louis to Prague?

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from St. Louis to Prague. It’s 12% cheaper than the average day, while Monday is the most expensive, with prices 26% higher.

What’s the cheapest month to fly from St. Louis to Prague?

•April is the cheapest month to fly from St. Louis to Prague at $719 round-trip.
•July ($1,222) and June ($1,193) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 69% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for St. Louis to Prague flights

Low season

January

Cheapest flight

$764
Beat the crowds with an average 79% drop in travelers.
The most popular month to fly with an average 90% increase in travelers.
Round-trip flight from St. Louis to Prague

When to book flights from St. Louis to Prague

Are your dates flexible? Find out the best times to travel from St. Louis to Prague based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Prague flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from St. Louis to Prague?

    Two cabin classes are available on flights from St. Louis to Prague:

    • Economy Class
    • Premium Economy Class

  • How long is a flight from St. Louis to Prague?

    A nonstop flight from St. Louis to Prague takes 00m, covering 4,783 miles.

  • Do I need a passport to fly from St. Louis to Prague?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a St. Louis to Prague flight?

    Round-trip flights from St. Louis to Prague range from $782 to $1,089, with an average of $943 over the past 12 months. Anything below $782 counts as a good deal.

  • What car rental options are available at Václav Havel Prague Airport (PRG)?

    Václav Havel Prague Airport (PRG) hosts 5 major car rental companies, with daily rates averaging $31 for economy cars. Top options include:

    • NU Car
    • Rent Plus
    • Alamo
    • CarWiz
    • Ace

  • Which airports can I use when flying from St. Louis to Prague?

    Flights from St. Louis to Prague usually depart from Lambert-St Louis (STL) and arrive at Václav Havel Prague (PRG).

  • Which airports do connecting flights from St. Louis to Prague pass through?

    One-stop flights from St. Louis to Prague most commonly connect through:

    • Frankfurt am Main (FRA) - 68% of one-stop connections
    • Philadelphia (PHL) - 23% of one-stop connections
    • Toronto Pearson Intl (YYZ) - 10% of one-stop connections

  • Can I save money by using flexible dates for flights from St. Louis to Prague?

    Yes. Flexible dates can save you up to 30% on flights from St. Louis to Prague. Sunday is the cheapest departure day at $836 round-trip on average, while Monday is the most expensive at $1,189, a difference of $353.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different layover airport from St. Louis to Prague?

    Flying via Frankfurt am Main (FRA) gives the shortest average 1-stop total travel time at 13h 37m, compared with 14h 04m via Toronto Pearson Intl (YYZ) and 14h 07m via Philadelphia (PHL).

  • What is the time difference between St. Louis and Prague?

    Prague is 7 hours ahead of St. Louis (Central European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Prague?

    Some of the most popular sights in Prague are Pražský orloj, Charles Bridge and O2 Arena. These are among the most viewed places in Prague on KAYAK.

Your guide to booking St. Louis to Prague flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure and avoid flying on Monday. On this route, Sunday flights average $836, about $353 less than Monday fares (30% savings) based on the last 12 months.
  • If you can choose when to travel, plan your St. Louis to Prague trip for April. Fares historically average $719 round-trip in that month - typically $503 less than the most expensive month, which is July (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Václav Havel Prague Airport.

    • Courtyard by Marriott Prague Airport
    • Ramada by Wyndham Airport Prague
    • Holiday Inn Prague Airport By IHG

More options for your flight from St. Louis to Prague

Complete your trip to Prague with a hotel stay or car rental

Car rentals in Prague
Hotels in Prague
Vacations in Prague