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$231+ Cheap flights from St. Louis (STL) to Europe

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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CPH
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from St. Louis to Europe

Keep the following information in mind while searching for St. Louis to Europe flight deals. Data was last updated September 11, 2025.

Round-trip from

$418
(Air Canada)

One-way from

$231
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$915

Good round-trip deal

$823 or less

Good one-way deal

$510 or less
From Lambert-St Louis to Europe
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One-way flight from Lambert-St Louis to Europe
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Highest demand for flights based on searches. 16% potential increase in price ($215 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Europe.
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Price to beat on a one-way flight from Lambert-St Louis to Europe.
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Find flight deals from St. Louis to Europe

Cheapest flights from St. Louis to Europe
Explore the most affordable flight options available from St. Louis to Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/9. 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 10/121:30 pmSTL - MAD
1 stop10h 10mUnited Airlines
Wed 10/2212:45 pmMAD - STL
2 stops33h 59mUnited Airlines
Deal found 9/9$418
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/135:28 pmSTL - MAD
2 stops30h 12mUnited Airlines
Wed 10/2212:45 pmMAD - STL
2 stops33h 59mUnited Airlines
Deal found 9/10$428
This Air Canada deal was found by Cheapflights users on 9/11. 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.
Sun 10/121:30 pmSTL - MAD
1 stop10h 10mAir Canada
Wed 10/2212:45 pmMAD - STL
2 stops33h 33mAir Canada
Deal found 9/11$437
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/69:15 amSTL - MAD
1 stop16h 05mUnited Airlines
Wed 10/2212:30 pmMAD - STL
1 stop33h 48mUnited Airlines
Deal found 9/8$443
This Air Canada deal was found by Cheapflights users on 9/10. 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.
Mon 10/69:15 amSTL - MAD
1 stop16h 05mAir Canada
Wed 10/2212:30 pmMAD - STL
1 stop33h 48mAir Canada
Deal found 9/10$444
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/76:30 amSTL - MAD
2 stops17h 10mUnited Airlines
Wed 10/2211:15 amMAD - STL
2 stops18h 20mUnited Airlines
Deal found 9/8$449
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/1911:49 amSTL - MAD
2 stops16h 56mUnited Airlines
Wed 12/31:35 pmMAD - STL
2 stops31h 48mUnited Airlines
Deal found 9/10$450
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/114:05 pmSTL - MAD
1 stop33h 15mUnited Airlines
Wed 10/2212:45 pmMAD - STL
2 stops29h 04mUnited Airlines
Deal found 9/8$453
This lastminute.com deal was found by Cheapflights users on 9/10. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/275:24 pmSTL - DUB
2 stops31h 46mAir Canada
Wed 11/129:00 amDUB - STL
2 stops18h 40mAir Canada
Deal found 9/10$470
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/218:00 amSTL - DUB
1 stop19h 45mUnited Airlines
Wed 11/59:00 amDUB - STL
2 stops35h 25mUnited Airlines
Deal found 9/11$474
This Aunt Betty deal was found by Cheapflights users on 9/10. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/273:14 pmSTL - DUB
1 stop11h 56mUnited Airlines
Wed 11/129:00 amDUB - STL
1 stop12h 29mUnited Airlines
Deal found 9/10$481
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/263:14 pmSTL - DUB
1 stop11h 56mUnited Airlines
Fri 11/79:00 amDUB - STL
1 stop12h 29mUnited Airlines
Deal found 9/10$483

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Europe 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 11, 2025.
Use the filters below to find and compare flights from St. Louis to Europe that are best for you.

Fly from

St. Louis

Fly to

Europe

Route

Depart

Return

Price

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 10/12

1:30 pm-6:40 am

1 stop10h 10m

Madrid Barajas

Wed 10/22

12:45 pm-3:44 pm

2 stops33h 59m

$418

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 10/13

1:30 pm-6:40 am

1 stop10h 10m

Madrid Barajas

Wed 10/22

12:45 pm-2:27 pm

2 stops32h 42m

$418

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 10/12

1:30 pm-6:40 am

1 stop10h 10m

Madrid Barajas

Wed 10/22

12:30 pm-3:18 pm

1 stop33h 48m

$437

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 10/7

9:15 am-8:20 am

1 stop16h 05m

Madrid Barajas

Wed 10/22

12:30 pm-3:18 pm

1 stop33h 48m

$443

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 10/6

1:30 pm-6:40 am

1 stop10h 10m

Madrid Barajas

Wed 10/22

11:15 am-10:35 pm

2 stops18h 20m

$445

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 10/11

4:05 pm-8:20 am

1 stop33h 15m

Madrid Barajas

Wed 10/22

12:45 pm-10:49 am

2 stops29h 04m

$453

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 10/7

1:30 pm-6:40 am

1 stop10h 10m

Madrid Barajas

Wed 10/15

6:00 am-3:44 pm

2 stops16h 44m

$466

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 10/7

6:30 am-6:40 am

2 stops17h 10m

Madrid Barajas

Thu 10/16

6:00 am-3:44 pm

2 stops16h 44m

$470

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 10/7

1:30 pm-6:40 am

1 stop10h 10m

Madrid Barajas

Fri 10/17

11:15 am-10:49 am

2 stops30h 34m

$474

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 10/28

1:30 pm-9:20 am

2 stops14h 50m

Dublin

Tue 11/4

10:45 am-4:43 pm

1 stop11h 58m

$494

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 60 results
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Best time to book a flight from St. Louis to Europe

Have a flexible travel schedule? Discover the best time to fly to Europe 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 Europe

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

Currently, November is the cheapest month in which you can book a flight from St. Louis to Europe (average of $523). Flying from St. Louis to Europe in June is currently the most expensive (average of $910). 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 EU?

Find hourly flight availability from St. Louis to Europe. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from St. Louis to Europe, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Europe

Get insights into the airlines that provide service to Europe. 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 Europe. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from St. Louis to Europe, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

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
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

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!
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

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
7,409 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

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 Europe. 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 Europe?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Europe. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

    Departing from St. Louis to Europe will take you 10h 10m. Airlines will cover a distance of 4414 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from St. Louis to Europe one-way?

    For one-way options, check prices for Lufthansa. According to our data, you can fly for as low as $303. Users have also found prices from $363 and $398 on Scandinavian Airlines and Aer Lingus, respectively.

  • What are the most popular routes from St. Louis to Europe?

    The most popular flight routes from St. Louis to Europe are Lambert-St Louis - Frankfurt am Main, Lambert-St Louis - London Heathrow and Lambert-St Louis - Rome Fiumicino.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Europe 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 Europe?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Europe (average of $523). Flying from St. Louis to Europe in June is currently the most expensive (average of $910). 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

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Alternative routes for St. Louis to Europe

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from St. Louis to Europe

Discover the top 10 airlines that operate flights from St. Louis to Europe. 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$530Average$934FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$546Average$949FlexibilityNo cancel feeOn-time70%
IberiaCheapest$566Average$942FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$573Average$957FlexibilityNo cancel feeOn-time69%
DeltaCheapest$593Average$964FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$603Average$1,041FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$611Average$1,297FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$614Average$946FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$614Average$1,103FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$624Average$1,071FlexibilityNo cancel feeOn-time67%

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