Europe

$320+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CPH
May 28 — Jun 41
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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 April 28, 2026.

This Gotogate deal was found by Cheapflights users on 4/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:10 pm
STL
-
DUB
1 stop13h 35m
Multiple Airlines
Tue 9/156:00 am
DUB
-
STL
1 stop13h 25m
Multiple Airlines
Deal found 4/27$662
This Gotogate deal was found by Cheapflights users on 4/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:30 pm
STL
-
DUB
1 stop19h 20m
Multiple Airlines
Tue 9/159:20 am
DUB
-
STL
1 stop15h 21m
Multiple Airlines
Deal found 4/27$678
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:10 pm
STL
-
DUB
1 stop13h 35m
United Airlines
Tue 9/159:50 am
DUB
-
STL
2 stops32h 23m
United Airlines
Deal found 4/26$683
This Gotogate deal was found by Cheapflights users on 4/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:10 pm
STL
-
DUB
1 stop13h 35m
Multiple Airlines
Thu 9/178:50 am
DUB
-
STL
1 stop34h 35m
Multiple Airlines
Deal found 4/27$684
This Air Canada deal was found by Cheapflights users on 4/28. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:55 am
STL
-
DUB
1 stop17h 20m
Air Canada
Wed 9/99:20 am
DUB
-
STL
2 stops36h 18m
Air Canada
Deal found 4/28$688
This Mytrip deal was found by Cheapflights users on 4/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:16 am
STL
-
DUB
2 stops16h 29m
Air Canada
Thu 9/179:20 am
DUB
-
STL
1 stop15h 21m
Air Canada
Deal found 4/27$691
This Gotogate deal was found by Cheapflights users on 4/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:10 pm
STL
-
MXP
2 stops17h 05m
Multiple Airlines
Wed 8/266:30 am
MXP
-
STL
1 stop13h 55m
Multiple Airlines
Deal found 4/27$727
This Gotogate deal was found by Cheapflights users on 4/25. 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.
Wed 8/1212:10 pm
STL
-
MXP
2 stops17h 05m
Multiple Airlines
Wed 8/266:30 am
MXP
-
STL
1 stop13h 55m
Multiple Airlines
Deal found 4/25$729
This United Airlines deal was found by Cheapflights users on 4/28. 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 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 4/28$735
This Air Canada deal was found by Cheapflights users on 4/28. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:10 pm
STL
-
MXP
2 stops17h 05m
Air Canada
Wed 8/2612:20 pm
MXP
-
STL
2 stops31h 29m
Air Canada
Deal found 4/28$738
This Gotogate deal was found by Cheapflights users on 4/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/134:15 pm
STL
-
MXP
2 stops34h 40m
Multiple Airlines
Fri 12/186:55 am
MXP
-
STL
1 stop14h 00m
Multiple Airlines
Deal found 4/26$742
This British Airways deal was found by Cheapflights users on 4/24. 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 British Airways 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
British Airways
Wed 8/262:20 pm
MXP
-
STL
1 stop16h 03m
British Airways
Deal found 4/24$744

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 April 28, 2026.

Round-trip from

$662
(Gotogate)

One-way from

$320
(Cheapflightsfares)

Popular in

June

Cheapest in

December

Average price

$1,036

Good round-trip deal

$1,065 or less

Good one-way deal

$473 or less
From Lambert-St Louis to Europe
One-way flight from Lambert-St Louis to Europe
Highest demand for flights based on searches. 24% potential increase in price ($305 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
Average for round-trip flights in April 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 April 28, 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

10:24 am-4:40 pm

2 stops23h 16m

Milan Malpensa

Wed 8/26

12:20 pm-12:49 pm

2 stops31h 29m

$739

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Wed 8/12

9:35 pm-8:50 pm

1 stop16h 15m

Milan Malpensa

Wed 8/26

2:20 pm-11:23 pm

1 stop16h 03m

$744

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 9/2

8:55 am-8:15 am

1 stop17h 20m

Dublin

Sat 9/12

9:20 am-8:00 pm

1 stop16h 40m

$751

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Tue 8/11

9:35 pm-10:35 pm

1 stop18h 00m

Rome Fiumicino

Tue 8/18

9:05 pm-7:30 pm

1 stop29h 25m

$794

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Fri 8/14

1:24 pm-6:00 pm

2 stops21h 36m

Milan Malpensa

Fri 8/28

12:20 pm-12:13 pm

2 stops30h 53m

$801

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 8/30

12:10 pm-7:45 am

1 stop13h 35m

Dublin

Sun 9/6

9:20 am-8:07 pm

1 stop16h 47m

$862

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 9/23

7:05 pm-1:15 pm

1 stop12h 10m

London Heathrow

Wed 9/30

6:30 am-4:55 pm

2 stops16h 25m

$868

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 9/8

10:55 am-6:25 am

1 stop13h 30m

London Heathrow

Wed 9/16

8:40 am-8:31 pm

2 stops17h 51m

$868

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 10/14

11:51 am-11:20 am

1 stop17h 29m

London Heathrow

Fri 10/23

6:30 am-5:06 pm

2 stops16h 36m

$868

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Sat 9/12

3:42 pm-9:25 am

1 stop34h 43m

Milan Malpensa

Tue 10/6

11:40 am-11:39 pm

1 stop18h 59m

$871

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How far ahead should I book a flight from St. Louis to Europe?

To ensure you get the cheapest price possible for a flight from St. Louis to Europe, you should look to book at least 70 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Europe (average of $288). Flying from St. Louis to Europe in February is currently the most expensive (average of $1,403). 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 April 28, 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 April 28, 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.

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 18m. 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 KLM. According to our data, you can fly for as low as $66. Users have also found prices from $205 and $222 on United Airlines and British Airways, 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, January is the cheapest month in which you can book a flight from St. Louis to Europe (average of $288). Flying from St. Louis to Europe in February is currently the most expensive (average of $1,403). 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

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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.

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 April 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$355Average$836FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$390Average$993FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$470Average$818FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$482Average$963FlexibilityNo cancel feeOn-time76%
KLMCheapest$507Average$855FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$555Average$916FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$560Average$992FlexibilityNo cancel feeOn-time67%
Scandinavian AirlinesCheapest$561Average$926FlexibilityNo cancel feeOn-time77%
IberiaCheapest$568Average$821FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$616Average$1,199FlexibilityNo cancel feeOn-time77%

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