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$271+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This FlightHub deal was found by Cheapflights users on 12/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/121:00 pmSTL - DUB
1 stop13h 10mLufthansa
Wed 12/1712:05 pmDUB - STL
1 stop13h 08mLufthansa
Deal found 12/11$480
This KLM deal was found by Cheapflights users on 12/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/124:32 pmSTL - DUB
1 stop10h 13mKLM
Thu 12/189:45 amDUB - STL
1 stop13h 04mKLM
Deal found 12/10$483
This KLM deal was found by Cheapflights users on 12/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/124:32 pmSTL - DUB
1 stop10h 13mKLM
Wed 12/1711:30 amDUB - STL
2 stops16h 27mKLM
Deal found 12/11$488
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Wed 12/318:15 amSTL - LIS
1 stop20h 00mUnited Airlines
Fri 1/1611:20 amLIS - STL
2 stops31h 09mUnited Airlines
Deal found 12/9$538
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/318:15 amSTL - LIS
1 stop20h 00mUnited Airlines
Wed 1/145:00 amLIS - STL
2 stops23h 58mUnited Airlines
Deal found 12/10$543
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:10 amSTL - LIS
1 stop19h 30mDelta
Tue 1/1311:25 amLIS - STL
2 stops35h 20mDelta
Deal found 12/10$545
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:10 amSTL - LIS
1 stop19h 30mDelta
Wed 1/1410:00 amLIS - STL
1 stop28h 34mDelta
Deal found 12/10$546
This Delta deal was found by Cheapflights users on 12/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:10 amSTL - LIS
1 stop19h 30mDelta
Fri 1/1610:00 amLIS - STL
1 stop16h 06mDelta
Deal found 12/9$547
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:04 amSTL - LIS
2 stops15h 56mDelta
Mon 1/1910:00 amLIS - STL
1 stop28h 34mDelta
Deal found 12/10$596
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Wed 12/318:15 amSTL - LIS
1 stop20h 00mUnited Airlines
Sat 1/1710:15 amLIS - STL
1 stop13h 10mUnited Airlines
Deal found 12/9$605
This Air Canada deal was found by Cheapflights users on 12/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:55 amSTL - LIS
2 stops17h 00mAir Canada
Sat 1/1711:20 amLIS - STL
2 stops29h 42mAir Canada
Deal found 12/9$607
This Air Canada deal was found by Cheapflights users on 12/10. 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.
Wed 12/319:55 amSTL - LIS
2 stops17h 00mAir Canada
Mon 1/1911:20 amLIS - STL
2 stops33h 10mAir Canada
Deal found 12/10$635

Find 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 December 12, 2025.

Round-trip from

$420
(Kiwi.com)

One-way from

$271
(Kiwi.com)

Popular in

June

Cheapest in

December

Average price

$607

Good round-trip deal

$675 or less

Good one-way deal

$280 or less
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. 18% potential increase in price ($243 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 12, 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

Fri 2/20

6:45 pm-8:10 am

1 stop31h 25m

Dublin

Sat 2/28

9:00 am-12:25 pm

2 stops33h 25m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 1/22

1:15 pm-8:10 am

1 stop12h 55m

Dublin

Mon 1/26

9:00 am-10:00 pm

2 stops43h 00m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Thu 1/29

9:57 am-8:10 am

1 stop16h 13m

Dublin

Mon 2/2

9:00 am-9:59 pm

2 stops42h 59m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 1/19

8:05 am-8:10 am

1 stop18h 05m

Dublin

Mon 1/26

9:00 am-12:29 pm

2 stops33h 29m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 3/1

6:30 am-8:10 am

1 stop19h 40m

Dublin

Mon 3/9

8:00 am-10:16 pm

2 stops43h 16m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 1/28

8:05 am-8:10 am

1 stop18h 05m

Dublin

Wed 2/4

9:00 am-8:58 pm

2 stops41h 58m

$455

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Tue 1/20

12:44 pm-8:30 am

1 stop12h 46m

Rome Fiumicino

Tue 1/27

7:05 am-10:58 pm

2 stops22h 53m

$483

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 1/21

4:05 pm-11:05 am

1 stop12h 00m

Rome Fiumicino

Mon 1/26

11:15 am-10:58 pm

2 stops42h 43m

$489

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sat 2/28

3:36 pm-6:50 pm

2 stops19h 14m

Athens Eleftherios V.

Sun 3/8

2:50 pm-11:52 pm

2 stops40h 02m

$490

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Mon 2/2

11:22 am-12:25 pm

2 stops18h 03m

Rome Fiumicino

Fri 2/13

9:45 am-9:40 pm

2 stops18h 55m

$490

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 60 results
1
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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, February is the cheapest month in which you can book a flight from St. Louis to Europe (average of $502). Flying from St. Louis to Europe in July is currently the most expensive (average of $716). 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 December 12, 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 Sunday 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 December 12, 2025.
Read through reviews of airlines operating flights from St. Louis to Europe, such as United Airlines, American Airlines, and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,095 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
American Airlines
7.2
Good
11,049 reviews
United Airlines
7.4
Good
9,095 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Air Canada
7.1
Good
10,515 reviews
United Airlines
7.4
Good
9,095 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Lufthansa
6.8
Okay
7,626 reviews
United Airlines
7.4
Good
9,095 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
British Airways
6.7
Okay
7,571 reviews
United Airlines
7.4
Good
9,095 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 12h. Airlines will cover a distance of 5050 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 $265. Users have also found prices from $314 and $322 on Scandinavian Airlines and United 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 - Frankfurt am Main and Lambert-St Louis - Dublin.

  • 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, February is the cheapest month in which you can book a flight from St. Louis to Europe (average of $502). Flying from St. Louis to Europe in July is currently the most expensive (average of $716). 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$488Average$1,057FlexibilityNo cancel feeOn-time71%
KLMCheapest$507Average$853FlexibilityNo cancel feeOn-time75%
Austrian AirlinesCheapest$509Average$1,383FlexibilityNo cancel feeOn-time78%
British AirwaysCheapest$523Average$906FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$524Average$918FlexibilityNo cancel feeOn-time76%
DeltaCheapest$552Average$923FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$573Average$1,065FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$574Average$936FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$582Average$958FlexibilityNo cancel feeOn-time77%
IberiaCheapest$586Average$931FlexibilityNo cancel feeOn-time77%

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