Europe

$303+ 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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CPH
Apr 9 — Apr 161
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Europe 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 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 March 10, 2026.

This Gotogate deal was found by Cheapflights users on 3/5. 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.
Sun 8/1612:10 pm
STL
-
DUB
1 stop13h 35m
Multiple Airlines
Tue 8/256:00 am
DUB
-
STL
1 stop13h 25m
Multiple Airlines
Deal found 3/5$525
This United Airlines deal was found by Cheapflights users on 3/5. 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 8/156:55 pm
STL
-
DUB
1 stop32h 50m
United Airlines
Tue 8/259:50 am
DUB
-
STL
2 stops32h 59m
United Airlines
Deal found 3/5$529
This United Airlines deal was found by Cheapflights users on 3/5. 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 11/98:25 am
STL
-
DUB
1 stop19h 55m
United Airlines
Fri 11/139:00 am
DUB
-
STL
2 stops43h 06m
United Airlines
Deal found 3/5$530
This Booking.com deal was found by Cheapflights users on 3/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/169:16 am
STL
-
DUB
2 stops16h 29m
Air Canada
Tue 8/259:50 am
DUB
-
STL
1 stop14h 42m
Air Canada
Deal found 3/5$541
This United Airlines deal was found by Cheapflights users on 3/8. 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 9/75:32 pm
STL
-
DUB
1 stop10h 13m
United Airlines
Tue 9/159:20 am
DUB
-
STL
1 stop15h 21m
United Airlines
Deal found 3/8$542
This United Airlines deal was found by Cheapflights users on 3/8. 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 8/115:10 am
STL
-
DUB
2 stops20h 35m
United Airlines
Wed 8/199:20 am
DUB
-
STL
1 stop16h 42m
United Airlines
Deal found 3/8$543
This United Airlines deal was found by Cheapflights users on 3/5. 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 8/125:00 am
STL
-
MXP
2 stops22h 20m
United Airlines
Wed 8/2612:20 pm
MXP
-
STL
2 stops31h 29m
United Airlines
Deal found 3/5$545
This Air Canada deal was found by Cheapflights users on 3/6. 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 9/28:55 am
STL
-
DUB
1 stop17h 20m
Air Canada
Tue 9/159:20 am
DUB
-
STL
1 stop15h 21m
Air Canada
Deal found 3/6$546
This Iberia deal was found by Cheapflights users on 3/5. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:35 pm
STL
-
MXP
1 stop16h 15m
Multiple Airlines
Wed 8/262:20 pm
MXP
-
STL
1 stop16h 22m
Multiple Airlines
Deal found 3/5$555
This Air Canada deal was found by Cheapflights users on 3/5. 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.
Tue 8/412:10 pm
STL
-
MXP
1 stop15h 10m
Air Canada
Wed 8/1912:20 pm
MXP
-
STL
2 stops32h 42m
Air Canada
Deal found 3/5$559
This United Airlines deal was found by Cheapflights users on 3/5. 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 8/1412:10 pm
STL
-
MXP
2 stops22h 50m
United Airlines
Fri 8/2812:20 pm
MXP
-
STL
1 stop13h 07m
United Airlines
Deal found 3/5$574
This United Airlines deal was found by Cheapflights users on 3/5. 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 4/226:15 am
STL
-
MXP
2 stops21h 05m
United Airlines
Wed 4/2912:20 pm
MXP
-
STL
2 stops41h 25m
United Airlines
Deal found 3/5$576

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 March 10, 2026.

Round-trip from

$525
(Gotogate)

One-way from

$303
(Delta)

Popular in

June

Cheapest in

December

Average price

$802

Good round-trip deal

$856 or less

Good one-way deal

$444 or less
From Lambert-St Louis to Europe
One-way flight from Lambert-St Louis to Europe
Highest demand for flights based on searches. 23% potential increase in price ($293 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Average for round-trip flights in March 2026
Price to beat on a round-trip flight from Lambert-St Louis to Europe.
Price to beat on a one-way flight from Lambert-St Louis to Europe.

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 March 10, 2026.
Use the filters below to find and compare flights from St. Louis to Europe that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Wed 8/12

5:00 am-10:20 am

2 stops22h 20m

Milan Malpensa

Wed 8/26

12:20 pm-6:27 pm

1 stop13h 07m

$559

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Wed 4/8

10:00 am-10:20 am

2 stops17h 20m

Milan Malpensa

Wed 4/15

12:20 pm-9:13 pm

2 stops39h 53m

$580

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 4/29

9:35 pm-6:00 pm

1 stop14h 25m

Dublin

Fri 5/8

9:40 am-10:19 pm

2 stops18h 39m

$590

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 5/4

6:20 am-7:55 am

1 stop19h 35m

Dublin

Tue 5/12

5:55 am-5:16 pm

2 stops17h 21m

$606

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 4/8

4:30 pm-12:55 pm

2 stops14h 25m

Dublin

Thu 4/16

10:30 am-10:17 pm

2 stops17h 47m

$609

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 5/3

6:00 am-8:45 am

1 stop20h 45m

Dublin

Wed 5/13

11:00 am-9:29 pm

1 stop16h 29m

$610

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 4/20

10:00 am-9:45 am

1 stop17h 45m

Dublin

Mon 4/27

9:50 am-10:28 pm

2 stops42h 38m

$633

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 4/5

1:10 pm-9:45 am

1 stop14h 35m

Dublin

Sun 4/12

8:50 am-7:22 pm

1 stop16h 32m

$660

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 4/22

8:30 am-7:20 am

1 stop16h 50m

Dublin

Sun 5/3

11:35 am-6:53 pm

1 stop13h 18m

$660

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 5/12

9:21 am-7:20 am

2 stops15h 59m

Dublin

Wed 8/19

9:20 am-11:37 pm

2 stops20h 17m

$661

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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, August is the cheapest month in which you can book a flight from St. Louis to Europe (average of $470). Flying from St. Louis to Europe in July is currently the most expensive (average of $683). 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 March 10, 2026.

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 March 10, 2026.
Read through reviews of airlines operating flights from St. Louis to Europe, such as United Airlines,American Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 15h 10m. Airlines will cover a distance of 4752 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 United Airlines. According to our data, you can fly for as low as $205. Users have also found prices from $222 and $222 on British Airways and American Airlines, respectively.

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

  • 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, August is the cheapest month in which you can book a flight from St. Louis to Europe (average of $470). Flying from St. Louis to Europe in July is currently the most expensive (average of $683). 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.

Alternative routes for St. Louis to Europe

See prices for flight routes from nearby airports that may be better suited for you.

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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$390Average$996FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$458Average$790FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$482Average$959FlexibilityNo cancel feeOn-time76%
KLMCheapest$507Average$782FlexibilityNo cancel feeOn-time75%
DeltaCheapest$507Average$859FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$552Average$837FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$555Average$911FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$561Average$953FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$572Average$1,039FlexibilityNo cancel feeOn-time67%
Air FranceCheapest$616Average$1,179FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.