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$488+ Cheap flights from St. Louis (STL) to Warsaw

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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — WAW
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from St. Louis to Warsaw

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Warsaw (WA1). 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 September 15, 2025.

Round-trip from

$517
(Scandinavian Airlines)

One-way from

$488
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$791
From Lambert-St Louis to Warsaw
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One-way flight from Lambert-St Louis to Warsaw
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Highest demand for flights based on searches. 17% potential increase in price ($223 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($55 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Warsaw

Cheapest flights from St. Louis to Warsaw
Explore the most affordable flight options available from St. Louis to Warsaw. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/241:55 pmSTL - WAW
2 stops17h 25mScandinavian Airlines
Thu 12/47:45 pmWAW - STL
2 stops32h 18mScandinavian Airlines
Deal found 9/15$517
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/294:50 pmSTL - WAW
1 stop18h 50mLufthansa
Wed 11/56:30 amWAW - STL
2 stops18h 09mLufthansa
Deal found 9/13$529
This Scandinavian Airlines deal was found by Cheapflights users on 9/13. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/273:15 pmSTL - WAW
2 stops16h 05mScandinavian Airlines
Thu 12/48:00 amWAW - STL
3 stops22h 41mScandinavian Airlines
Deal found 9/13$542
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Wed 10/295:09 pmSTL - WAW
2 stops19h 41mAmerican Airlines
Wed 11/58:50 amWAW - STL
2 stops17h 40mAmerican Airlines
Deal found 9/13$545
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Tue 10/285:09 pmSTL - WAW
2 stops19h 36mAmerican Airlines
Tue 11/48:50 amWAW - STL
2 stops21h 08mAmerican Airlines
Deal found 9/13$546
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/241:10 pmSTL - WAW
2 stops16h 45mUnited Airlines
Wed 12/36:30 amWAW - STL
1 stop14h 25mUnited Airlines
Deal found 9/15$555
This Lufthansa deal was found by Cheapflights users on 9/15. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/263:50 pmSTL - WAW
1 stop18h 50mLufthansa
Fri 12/56:30 amWAW - STL
1 stop14h 25mLufthansa
Deal found 9/15$558
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/253:14 pmSTL - WAW
2 stops18h 01mUnited Airlines
Fri 12/56:30 amWAW - STL
2 stops23h 15mUnited Airlines
Deal found 9/15$561

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Warsaw 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 September 15, 2025.
Use the filters below to find and compare flights from St. Louis to Warsaw that are best for you.

Fly from

St. Louis

Fly to

Warsaw

Route

Depart

Return

Price

St. LouisWarsaw

STL - WAW

STLWAW

Lambert-St Louis

Mon 11/24

1:55 pm-2:20 pm

2 stops17h 25m

Warsaw Frederic Chopin

Wed 12/3

7:45 pm-9:03 pm

2 stops32h 18m

$517

St. LouisWarsaw

STL - WAW

STLWAW

Lambert-St Louis

Thu 11/27

3:15 pm-9:10 pm

3 stops22h 55m

Warsaw Frederic Chopin

Thu 12/4

8:00 am-9:03 pm

3 stops20h 03m

$550

St. LouisWarsaw

STL - WAW

STLWAW

Lambert-St Louis

Wed 11/26

3:50 pm-5:40 pm

1 stop18h 50m

Warsaw Frederic Chopin

Fri 12/5

6:30 am-1:55 pm

1 stop14h 25m

$558

St. LouisWarsaw

STL - WAW

STLWAW

Lambert-St Louis

Mon 11/24

11:49 am-4:15 pm

2 stops21h 26m

Warsaw Frederic Chopin

Wed 12/3

6:30 am-1:55 pm

1 stop14h 25m

$559

St. LouisWarsaw

STL - WAW

STLWAW

Lambert-St Louis

Wed 11/26

6:43 pm-4:15 pm

2 stops14h 32m

Warsaw Frederic Chopin

Wed 12/3

6:30 am-1:55 pm

1 stop14h 25m

$559

St. LouisWarsaw

STL - WAW

STLWAW

Lambert-St Louis

Tue 11/25

3:14 pm-12:55 pm

2 stops14h 41m

Warsaw Frederic Chopin

Thu 12/4

9:30 am-10:45 pm

2 stops20h 15m

$561

St. LouisWarsaw

STL - WAW

STLWAW

Lambert-St Louis

Wed 11/26

8:25 am-12:55 pm

2 stops21h 30m

Warsaw Frederic Chopin

Thu 12/4

6:30 am-8:57 pm

2 stops21h 27m

$569

St. LouisWarsaw

STL - WAW

STLWAW

Lambert-St Louis

Wed 11/26

6:43 pm-4:15 pm

2 stops14h 32m

Warsaw Frederic Chopin

Wed 12/3

6:30 am-10:45 pm

2 stops23h 15m

$569

St. LouisWarsaw

STL - WAW

STLWAW

Lambert-St Louis

Wed 11/26

3:50 pm-5:40 pm

1 stop18h 50m

Warsaw Frederic Chopin

Thu 12/4

2:30 pm-1:55 pm

1 stop30h 25m

$578

St. LouisWarsaw

STL - WAW

STLWAW

Lambert-St Louis

Fri 11/28

6:43 pm-4:15 pm

2 stops14h 32m

Warsaw Frederic Chopin

Fri 12/5

6:30 am-1:55 pm

1 stop14h 25m

$609

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 13 results
1
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Best time to book a flight from St. Louis to Warsaw

Have a flexible travel schedule? Discover the best time to fly to Warsaw from St. Louis with our price prediction graph.
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 Warsaw

What is the cheapest month to book a flight from St. Louis to Warsaw?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Warsaw (average of $576). Flying from St. Louis to Warsaw in June is currently the most expensive (average of $1,019). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to WAW?

Find hourly flight availability from St. Louis to Warsaw. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 30% on flights from St. Louis to Warsaw by exploring options for tickets in the morning.

How much does it cost to fly round-trip from St. Louis to Warsaw?

Reviews of airlines servicing Warsaw

Get insights into the airlines that provide service to Warsaw. 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 Warsaw. Reviews last updated September 15, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines from St. Louis to Warsaw to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,385 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,407 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Warsaw. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Warsaw?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Warsaw. 4 airlines have flights from Lambert-St Louis to Warsaw on a regular basis. Booking flights from Lambert-St Louis to Warsaw should not be difficult; the airport handles an average of 0 outbound flights to Warsaw per day.

  • How long is the flight from St. Louis to Warsaw?

    There are many flights that can get you from St. Louis to Warsaw in 17h 25m. Fly via Scandinavian Airlines, Lufthansa, or United Airlines to get the fastest option. Airlines will cover a distance of 4924 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from St. Louis to Warsaw round-trip?

    Lufthansa, at $623, was found to be the cheapest airline from St. Louis to Warsaw.Alternate airlines to your destination round-trip include United Airlines and KLM. Lufthansa is priced at 42% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from St. Louis to Warsaw that include hotel bookings?

    Yes. In addition to deals on St. Louis to Warsaw flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Warsaw?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Warsaw.

  • Can I find deals for business class flights from St. Louis to Warsaw?

    Yes. Cheapflights offers flight deals from St. Louis to Warsaw by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Warsaw?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Warsaw (average of $576). Flying from St. Louis to Warsaw in June is currently the most expensive (average of $1,019). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from St. Louis to Warsaw

Discover the top 4 airlines that operate flights from St. Louis to Warsaw. 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$623Average$1,094FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$639Average$1,492FlexibilityNo cancel feeOn-time69%
KLMCheapest$691Average$1,556FlexibilityNo cancel feeOn-time75%
DeltaCheapest$765Average$1,556FlexibilityNo cancel feeOn-timeN/A

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