$356+ Cheap flights from St. Louis (STL) to Prague (PRG)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PRG
Sep 17 — Sep 241
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Prague with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Prague
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Best
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One-way
Cheapest flights from St. Louis to PragueExplore the most affordable flight options available from St. Louis to Prague. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.
Explore the most affordable flight options available from St. Louis to Prague. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:30 am -
2 stops28h 25m
Wed 12/911:30 am -
2 stops34h 56m
Deal found 8/14![United Airlines logo]()
$810
This FlightHub deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:50 pm -
2 stops20h 50m
Wed 12/24:45 pm -
2 stops35h 28m
Deal found 8/17![Lufthansa logo]()
$812
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:34 pm -
2 stops41h 21m
Wed 11/257:05 am -
1 stop13h 40m
Deal found 8/14![United Airlines logo]()
$813
This oojo deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/276:50 pm -
2 stops14h 15m
Fri 12/47:05 am -
1 stop13h 40m
Deal found 8/14![Lufthansa logo]()
$820
This Air Canada deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:05 pm -
2 stops38h 55m
Wed 11/257:05 am -
2 stops39h 21m
Deal found 8/14![Air Canada logo]()
$825
This Finnair deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:24 am -
2 stops28h 26m
Wed 12/27:35 pm -
2 stops33h 12m
Deal found 8/13![Multiple Airlines logo]()
$827
This Delta deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/276:45 am -
2 stops18h 40m
Thu 12/316:00 am -
2 stops21h 51m
Deal found 8/17![Delta logo]()
$852
Best flights from St. Louis to PragueDiscover carefully curated flight deals from St. Louis to Prague that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.
Discover carefully curated flight deals from St. Louis to Prague that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:34 pm -
2 stops41h 21m
Wed 11/257:05 am -
1 stop13h 40m
Deal found 8/14![United Airlines logo]()
$813
This oojo deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:30 pm -
1 stop12h 45m
Tue 10/136:10 am -
1 stop14h 15m
Deal found 8/17![Lufthansa logo]()
$921
This Delta deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/276:45 am -
2 stops18h 40m
Fri 1/16:00 am -
2 stops21h 51m
Deal found 8/17![Delta logo]()
$935
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2511:18 am -
2 stops15h 22m
Wed 12/307:05 am -
1 stop13h 40m
Deal found 8/17![United Airlines logo]()
$908
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:30 pm -
2 stops34h 20m
Wed 9/3012:30 pm -
2 stops34h 13m
Deal found 8/13![United Airlines logo]()
$922
Last-minute flights from St. Louis to PragueDiscover last-minute flight deals from St. Louis to Prague. Data last updated August 18, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Prague. Data last updated August 18, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:40 pm -
2 stops18h 00m
Fri 9/1810:20 am -
2 stops20h 22m
Deal found 8/13![Scandinavian Airlines logo]()
$883
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:30 am -
1 stop18h 45m
Fri 9/1810:15 am -
1 stop18h 28m
Deal found 8/13![American Airlines logo]()
$941
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:55 am -
1 stop18h 55m
Sun 9/206:10 am -
1 stop14h 15m
Deal found 8/16![United Airlines logo]()
$952
This oojo deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:00 pm -
2 stops19h 40m
Mon 9/2110:20 am -
2 stops20h 22m
Deal found 8/15![Scandinavian Airlines logo]()
$954
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:30 pm -
2 stops34h 20m
Wed 9/3012:30 pm -
2 stops34h 13m
Deal found 8/17![United Airlines logo]()
$922
This Gotogate deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:55 am -
1 stop18h 55m
Tue 10/206:15 am -
2 stops20h 45m
Deal found 8/17![Multiple Airlines logo]()
$916
This oojo deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/291:29 pm -
2 stops14h 21m
Tue 10/209:10 am -
2 stops18h 59m
Deal found 8/17![Lufthansa logo]()
$924
One-way flights from St. Louis to PragueSearch for one-way flight options from St. Louis to Prague. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
Search for one-way flight options from St. Louis to Prague. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
This oojo deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:31 pm -
2 stops17h 04m
Deal found 8/14![British Airways logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:05 pm -
3 stops39h 25m
Deal found 8/14![Multiple Airlines logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:20 am -
3 stops40h 55m
Deal found 8/17![Multiple Airlines logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:29 pm -
3 stops48h 16m
Deal found 8/15![Multiple Airlines logo]()
$419
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/268:10 pm -
3 stops54h 15m
Deal found 8/17![Multiple Airlines logo]()
$444
This Cheapflightsfares deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:35 pm -
1 stop18h 15m
Deal found 8/15![British Airways logo]()
$480
This oojo deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:09 am -
1 stop14h 06m
Deal found 8/17![British Airways logo]()
$494
This American Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:43 am -
2 stops16h 32m
Deal found 8/15![American Airlines logo]()
$498
Find flight deals from St. Louis to Prague
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Prague (PRG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $810 (United Airlines) |
One-way from | $356 (oojo) |
Popular in | June |
Cheapest in | April |
Average price | $902 |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 18, 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
Cheapest round-trip
St. LouisPrague
STL Lambert-St Louis - PRG Václav Havel Prague
STLPRG
Lambert-St Louis
Sat 11/14
5:34 pm-5:55 pm
2 stops41h 21m
Václav Havel Prague
Wed 11/25
7:05 am-1:45 pm
1 stop13h 40m
$813
St. LouisPrague
STL Lambert-St Louis - PRG Václav Havel Prague
STLPRG
Lambert-St Louis
Fri 12/25
11:18 am-9:40 am
2 stops15h 22m
Václav Havel Prague
Wed 12/30
7:05 am-1:45 pm
1 stop13h 40m
$908
Quickest round-trip
St. LouisPrague
STL Lambert-St Louis - PRG Václav Havel Prague
STLPRG
Lambert-St Louis
Fri 10/9
3:30 pm-11:15 am
1 stop12h 45m
Václav Havel Prague
Tue 10/13
6:10 am-1:25 pm
1 stop14h 15m
$921
St. LouisPrague
STL Lambert-St Louis - PRG Václav Havel Prague
STLPRG
Lambert-St Louis
Sat 9/19
5:30 pm-10:50 am
2 stops34h 20m
Václav Havel Prague
Wed 9/30
12:30 pm-3:43 pm
2 stops34h 13m
$922
St. LouisPrague
STL Lambert-St Louis - PRG Václav Havel Prague
STLPRG
Lambert-St Louis
Sun 12/27
6:45 am-8:25 am
2 stops18h 40m
Václav Havel Prague
Fri 1/1
6:00 am-8:51 pm
2 stops21h 51m
$935
Cheapest one-way
St. LouisPrague
STL Lambert-St Louis - PRG Václav Havel Prague
STLPRG
Lambert-St Louis
Tue 12/1
5:31 pm-5:35 pm
2 stops17h 04m
$356
St. LouisPrague
STL Lambert-St Louis - PRG Václav Havel Prague
STLPRG
Lambert-St Louis
Tue 12/1
6:05 pm-4:30 pm
3 stops39h 25m
$413
St. LouisPrague
STL Lambert-St Louis - PRG Václav Havel Prague
STLPRG
Lambert-St Louis
Thu 9/24
10:20 am-10:15 am
3 stops40h 55m
$416
St. LouisPrague
STL Lambert-St Louis - PRG Václav Havel Prague
STLPRG
Lambert-St Louis
Fri 9/25
2:29 pm-9:45 pm
3 stops48h 16m
$419
Quickest one-way
St. LouisPrague
STL Lambert-St Louis - PRG Václav Havel Prague
STLPRG
Lambert-St Louis
Thu 9/24
11:09 am-8:15 am
1 stop14h 06m
$494
Showing 1-10 of 12 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Prague
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Prague in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Prague flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Prague flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Prague flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Prague flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Prague flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Prague
Have a flexible travel schedule? Discover the best time to fly to Prague from St. Louis with our price prediction graph.
STL-PRG
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Prague
Reviews of airlines servicing Prague
Get insights into the airlines that provide service to Prague. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Prague. Reviews last updated August 18, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from St. Louis to Prague. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Food
7.2
Overall
7.8
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Overall
7.8
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Overall
7.8
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Overall
7.8
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Overall
7.8
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Prague. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
Complete your trip to Prague by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from St. Louis to Prague, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Prague flights
Browse other St. Louis and Prague flight options. Last updated on August 18, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on August 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Prague
Explore flights to Prague departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 18, 2026.
Top 4 airlines flying from St. Louis to Prague
Discover the top 4 airlines that operate flights from St. Louis to Prague. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$500 | Average$771 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$511 | Average$1,243 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$572 | Average$788 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$908 | Average$1,002 | FlexibilityNo cancel fee | On-timeN/A |