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$260+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CPH
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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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 October 29, 2025.

This Delta deal was found by Cheapflights users on 10/28. 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.
Mon 12/16:00 amSTL - DUB
1 stop19h 45mDelta
Tue 12/1610:45 amDUB - STL
2 stops29h 05mDelta
Deal found 10/28$425
This Air France deal was found by Cheapflights users on 10/28. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/249:33 amSTL - MAD
1 stop16h 42mKLM
Wed 12/1011:15 amMAD - STL
1 stop17h 42mKLM
Deal found 10/28$430
This KLM deal was found by Cheapflights users on 10/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1611:39 amSTL - DUB
1 stop14h 06mKLM
Tue 11/259:45 amDUB - STL
1 stop13h 04mKLM
Deal found 10/27$433
This KLM deal was found by Cheapflights users on 10/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2711:21 amSTL - MAD
1 stop14h 44mKLM
Wed 11/1211:15 amMAD - STL
1 stop17h 43mKLM
Deal found 10/26$438
This Delta deal was found by Cheapflights users on 10/27. 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 11/96:40 amSTL - DUB
2 stops20h 05mDelta
Wed 11/1910:45 amDUB - STL
2 stops16h 01mDelta
Deal found 10/27$438
This Virgin Atlantic deal was found by Cheapflights users on 10/26. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2711:21 amSTL - MAD
2 stops13h 39mVirgin Atlantic
Wed 11/1210:00 amMAD - STL
2 stops17h 46mVirgin Atlantic
Deal found 10/26$443
This eDestinos deal was found by Cheapflights users on 10/27. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:48 pmSTL - MAD
2 stops14h 52mIberia
Mon 12/812:40 pmMAD - STL
1 stop17h 07mIberia
Deal found 10/27$447
This Delta deal was found by Cheapflights users on 10/27. 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 11/166:40 amSTL - DUB
2 stops20h 05mDelta
Tue 11/256:00 amDUB - STL
2 stops17h 09mDelta
Deal found 10/27$457
This Delta deal was found by Cheapflights users on 10/27. 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.
Mon 12/17:02 pmSTL - MAD
2 stops17h 08mDelta
Tue 12/1610:00 amMAD - STL
2 stops17h 47mDelta
Deal found 10/27$461
This Delta deal was found by Cheapflights users on 10/28. 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.
Mon 11/244:30 pmSTL - MAD
2 stops15h 50mDelta
Wed 12/1010:00 amMAD - STL
2 stops17h 47mDelta
Deal found 10/28$462
This lastminute.com deal was found by Cheapflights users on 10/29. 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 11/105:24 pmSTL - DUB
2 stops31h 46mMultiple Airlines
Wed 11/265:10 amDUB - STL
1 stop14h 45mMultiple Airlines
Deal found 10/29$462
This Delta deal was found by Cheapflights users on 10/27. 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.
Wed 11/194:30 pmSTL - DUB
2 stops17h 50mDelta
Fri 11/2810:45 amDUB - STL
1 stop11h 48mDelta
Deal found 10/27$465

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 October 29, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$425
(Delta)

One-way from

$260
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,090

Good round-trip deal

$597 or less

Good one-way deal

$418 or less
Provider with most accurate pricing for Lambert-St Louis-Europe flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Europe flights.
Search Deals
From Lambert-St Louis to Europe
Search Deals
One-way flight from Lambert-St Louis to Europe
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($97 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to Europe.
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to Europe.
Search Deals

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 October 29, 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. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 11/16

4:30 pm-8:45 am

1 stop10h 15m

Dublin

Tue 11/25

9:45 am-4:49 pm

1 stop13h 04m

$433

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 12/1

6:00 am-7:45 am

1 stop19h 45m

Dublin

Tue 12/16

9:45 am-4:49 pm

1 stop13h 04m

$433

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 12/2

12:49 pm-7:45 am

1 stop12h 56m

Dublin

Wed 12/10

10:45 am-4:35 pm

1 stop11h 50m

$433

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 11/9

4:30 pm-8:45 am

1 stop10h 15m

Dublin

Wed 11/19

9:45 am-4:07 pm

1 stop12h 22m

$433

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 11/9

4:30 pm-8:45 am

1 stop10h 15m

Dublin

Wed 11/19

10:45 am-8:46 pm

2 stops16h 01m

$438

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 11/16

6:00 am-8:45 am

2 stops20h 45m

Dublin

Tue 11/25

9:45 am-4:49 pm

1 stop13h 04m

$438

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 12/2

4:32 pm-8:45 am

1 stop10h 13m

Dublin

Wed 12/10

11:30 am-9:57 pm

2 stops16h 27m

$438

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 1/18

5:00 pm-9:15 am

1 stop33h 15m

Madrid Barajas

Thu 1/29

11:15 am-5:50 pm

1 stop13h 35m

$443

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 11/24

7:05 am-9:15 am

1 stop19h 10m

Madrid Barajas

Wed 12/10

10:00 am-8:47 pm

2 stops17h 47m

$443

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 1/18

7:10 am-11:30 am

2 stops21h 20m

Madrid Barajas

Thu 1/29

10:00 am-8:39 pm

2 stops17h 39m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 60 results
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  • Most accurate provider: When it comes to deals on St. Louis-Europe flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on St. Louis-Europe flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from St. Louis-Europe flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Europe flights, Cheapflights users trust Expedia the most. Expedia 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-Europe 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 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 $507). Flying from St. Louis to Europe in July is currently the most expensive (average of $709). 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 October 29, 2025.

When flying from St. Louis to Europe, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 13% versus a flight in the morning.

What is the cheapest day to fly from St. Louis to Europe?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Europe. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their St. Louis to Europe flight should consider departing on Saturday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 29, 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
7.9
Good
7,993 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,993 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,030 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Air Canada
7.1
Good
10,375 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Lufthansa
6.8
Okay
7,541 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 15m. Airlines will cover a distance of 3909 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 Air Canada. According to our data, you can fly for as low as $384. Users have also found prices from $389 and $397 on Lufthansa and Austrian Airlines, 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 - London Heathrow, Lambert-St Louis - London Gatwick 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 $507). Flying from St. Louis to Europe in July is currently the most expensive (average of $709). 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$488Average$1,069FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$524Average$922FlexibilityNo cancel feeOn-time76%
KLMCheapest$529Average$898FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$546Average$958FlexibilityNo cancel feeOn-time70%
DeltaCheapest$552Average$939FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$573Average$1,066FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$578Average$950FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$582Average$964FlexibilityNo cancel feeOn-time77%
IberiaCheapest$586Average$924FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$602Average$1,041FlexibilityNo cancel feeOn-time77%

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