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 $435. Users have also found prices from $451 and $463 on United Airlines and Iberia, 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 - Rome Fiumicino.

What are the most popular airlines that fly from St. Louis to Europe?

The most popular airlines flying from St. Louis to Europe are American Airlines, Air Canada and British Airways. Something to consider prior to booking your flight.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 32 days in advance, which can save you up to 77% on flights from St. Louis to Europe compared to booking the week you need them. Waiting 32 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $943. For sooner than that we have options available in the next 3 days from $1,555.

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

The best pricing can be found in the month of October. Prices to Europe from St. Louis average $1,140. You can even find prices in October for less than $1,140, as users have found deals to Europe from as low as $732. The month of June appears to be one of the more expensive times to travel to Europe from St. Louis. Flying in the targeted month can save you up to 35%.

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% 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.

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.

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.

$641+ Flights from St. Louis to Europe

Q: 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 $953). 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.

Q: E

In terms of precipitation, rainfall in Europe ranges from 0.4 - 3.9 inches per month. December is typically the wettest month, when rainfall can reach 3.9 in. July is typically the driest time to visit Europe when rainfall is around 0.4 in.

Q: E

If weather is an important factor for your trip to Europe, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Q: What is the cheapest time of day to fly from STL to EU?

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.

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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”

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Cheap flight deals from St. Louis to Europe

Most accurate provider	Expedia 1 star
Most trusted provider	Expedia 3 stars
Round-trip from	$590 (United Airlines)
One-way from	$313 (Kiwi.com)
Popular in	June
Cheapest in	October
Average price	$1,186
Good round-trip deal	$952 or less
Good one-way deal	$590 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. 14% potential increase in price ($190 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 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

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 April 15, 2025.

Wed 9/176:00 amSTL - BCN

1 stop17h 00mDelta

Thu 10/211:35 amBCN - STL

1 stop16h 14mDelta

Deal found 4/15

$572

Tue 10/141:30 pmSTL - ATH

1 stop12h 25mUnited Airlines

Wed 11/512:25 pmATH - STL

2 stops29h 17mUnited Airlines

Deal found 4/14

$584

Tue 10/141:30 pmSTL - ATH

1 stop12h 25mMultiple Airlines

Wed 11/56:25 amATH - STL

1 stop15h 30mMultiple Airlines

Deal found 4/14

$591

Fri 9/191:30 pmSTL - BCN

1 stop11h 20mAir Canada

Tue 9/3012:10 pmBCN - STL

2 stops34h 28mAir Canada

Deal found 4/15

$595

Tue 9/164:05 pmSTL - BCN

2 stops45h 25mMultiple Airlines

Tue 9/301:15 pmBCN - STL

1 stop13h 18mMultiple Airlines

Deal found 4/15

$597

Thu 8/215:30 pmSTL - DUB

2 stops32h 15mUnited Airlines

Tue 8/269:20 amDUB - STL

2 stops31h 18mUnited Airlines

Deal found 4/14

$597

Thu 8/214:00 pmSTL - DUB

1 stop10h 15mAir Canada

Tue 8/269:20 amDUB - STL

1 stop16h 40mAir Canada

Deal found 4/14

$606

Wed 10/229:47 amSTL - ATH

1 stop17h 23mBritish Airways

Tue 11/41:00 pmATH - STL

1 stop15h 16mBritish Airways

Deal found 4/14

$607

Mon 11/106:45 amSTL - ATH

2 stops19h 50mDelta

Fri 11/216:00 amATH - STL

2 stops25h 02mDelta

Deal found 4/14

$609

Thu 9/257:59 pmSTL - BCN

2 stops16h 46mBritish Airways

Mon 10/69:10 pmBCN - STL

2 stops25h 58mBritish Airways

Deal found 4/15

$647

Tue 5/69:40 amSTL - DUB

1 stop18h 05mMultiple Airlines

Thu 5/159:50 amDUB - STL

2 stops32h 29mMultiple Airlines

Deal found 4/14

$658

Sun 9/148:10 amSTL - BCN

1 stop22h 05mUnited Airlines

Wed 10/112:15 pmBCN - STL

2 stops33h 04mUnited Airlines

Deal found 4/15

$660

Best flights from St. Louis to Europe
Discover carefully curated flight deals from St. Louis to Europe that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2025.

Sun 10/124:05 pmSTL - ATH

1 stop35h 05mUnited Airlines

Wed 11/512:25 pmATH - STL

2 stops29h 17mUnited Airlines

Deal found 4/14

$590

Mon 5/51:30 pmSTL - DUB

2 stops36h 45mAir Canada

Wed 5/219:50 amDUB - STL

2 stops40h 08mAir Canada

Deal found 4/14

$642

Thu 9/257:59 pmSTL - BCN

2 stops16h 46mBritish Airways

Mon 10/69:10 pmBCN - STL

2 stops25h 58mBritish Airways

Deal found 4/15

$647

Tue 5/69:40 amSTL - DUB

1 stop18h 05mMultiple Airlines

Thu 5/159:50 amDUB - STL

2 stops32h 29mMultiple Airlines

Deal found 4/14

$658

Thu 9/2511:38 amSTL - BCN

1 stop17h 37mAmerican Airlines

Mon 10/66:30 pmBCN - STL

1 stop20h 56mAmerican Airlines

Deal found 4/14

$672

Tue 9/98:01 pmSTL - LHR

1 stop10h 14mIberia

Tue 9/232:25 pmLHR - STL

1 stop11h 58mIberia

Deal found 4/15

$673

Sun 10/127:05 pmSTL - ATH

1 stop31h 50mDelta

Tue 11/43:35 amATH - STL

2 stops25h 00mDelta

Deal found 4/14

$691

Mon 5/124:52 pmSTL - LHR

1 stop13h 53mFinnair

Fri 5/238:20 amLHR - STL

1 stop16h 01mFinnair

Deal found 4/15

$709

Tue 8/1911:51 amSTL - LHR

1 stop12h 54mKLM

Thu 8/281:05 pmLHR - STL

1 stop13h 42mKLM

Deal found 4/14

$715

Wed 5/143:40 pmSTL - LHR

2 stops13h 45mVirgin Atlantic

Tue 6/179:20 amLHR - STL

1 stop12h 58mVirgin Atlantic

Deal found 4/14

$727

Tue 5/201:41 pmSTL - LHR

1 stop13h 59mLufthansa

Sun 6/1512:00 pmLHR - STL

1 stop15h 56mLufthansa

Deal found 4/15

$773

Thu 8/141:30 pmSTL - LHR

2 stops22h 10mScandinavian Airlines

Wed 8/207:05 amLHR - STL

3 stops22h 34mScandinavian Airlines

Deal found 4/15

$876

Last-minute flights from St. Louis to Europe
Discover last-minute flight deals from St. Louis to Europe. Data last updated April 15, 2025 and is based on user searches.

Mon 4/218:25 amSTL - CDG

1 stop16h 20mMultiple Airlines

Mon 4/285:55 pmCDG - STL

2 stops36h 20mMultiple Airlines

Deal found 4/14

$878

Mon 4/218:00 amSTL - CDG

2 stops16h 45mUnited Airlines

Mon 4/2812:05 pmCDG - STL

2 stops59h 31mUnited Airlines

Deal found 4/14

$899

Mon 4/211:41 pmSTL - CDG

1 stop11h 09mKLM

Mon 4/289:20 amCDG - STL

1 stop14h 06mKLM

Deal found 4/14

$938

Tue 4/221:12 pmSTL - DUB

1 stop14h 33mUnited Airlines

Tue 5/69:50 amDUB - STL

2 stops39h 33mUnited Airlines

Deal found 4/14

$768

Wed 4/238:48 amSTL - LHR

1 stop21h 32mUnited Airlines

Sun 4/276:30 amLHR - STL

1 stop13h 00mUnited Airlines

Deal found 4/14

$736

Wed 4/239:18 amSTL - LGW

2 stops17h 17mAmerican Airlines

Wed 4/3010:40 amLGW - STL

2 stops17h 32mAmerican Airlines

Deal found 4/15

$748

Wed 4/236:58 pmSTL - LGW

2 stops33h 02mMultiple Airlines

Wed 4/302:00 pmLGW - STL

1 stop16h 04mMultiple Airlines

Deal found 4/15

$827

Thu 4/2410:17 amSTL - FCO

1 stop15h 53mBritish Airways

Wed 4/3011:05 amFCO - STL

1 stop19h 28mBritish Airways

Deal found 4/14

$872

Thu 4/246:30 amSTL - FCO

1 stop18h 25mUnited Airlines

Wed 4/301:20 pmFCO - STL

2 stops37h 23mUnited Airlines

Deal found 4/14

$873

Thu 4/247:10 amSTL - FCO

2 stops17h 45mDelta

Wed 4/3010:10 amFCO - STL

2 stops20h 26mDelta

Deal found 4/15

$878

Thu 4/243:40 pmSTL - BCN

2 stops16h 15mUnited Airlines

Mon 5/512:15 pmBCN - STL

2 stops29h 53mUnited Airlines

Deal found 4/15

$911

Thu 4/2410:30 amSTL - BCN

2 stops19h 05mDelta

Mon 5/59:00 amBCN - STL

2 stops18h 39mDelta

Deal found 4/15

$940

One-way flights from St. Louis to Europe
Search for one-way flight options from St. Louis to Europe. Find affordable one-way fares based on user searches. Data last updated April 15, 2025.

Wed 5/218:15 pmSTL - DUB

3 stops55h 45mMultiple Airlines

Deal found 4/15

$313

Sun 5/115:45 pmSTL - ORY

2 stops39h 20mMultiple Airlines

Deal found 4/14

$314

Sun 5/115:45 pmSTL - CDG

2 stops42h 00mMultiple Airlines

Deal found 4/14

$328

Tue 5/65:45 pmSTL - FCO

2 stops48h 10mMultiple Airlines

Deal found 4/14

$366

Tue 5/272:40 pmSTL - LHR

3 stops49h 50mMultiple Airlines

Deal found 4/13

$403

Sun 5/255:45 pmSTL - LGW

3 stops43h 35mMultiple Airlines

Deal found 4/13

$403

Tue 5/272:40 pmSTL - LCY

3 stops46h 40mMultiple Airlines

Deal found 4/13

$430

Sun 5/41:30 pmSTL - DUB

2 stops36h 45mAir Canada

Deal found 4/14

$435

Wed 9/31:30 pmSTL - LHR

2 stops13h 05mAir Canada

Deal found 4/14

$446

Tue 9/211:19 amSTL - LHR

1 stop13h 56mUnited Airlines

Deal found 4/14

$451

Sun 5/111:30 pmSTL - CDG

1 stop13h 50mUnited Airlines

Deal found 4/15

$458

Wed 5/147:30 pmSTL - LHR

1 stop10h 45mIberia

Deal found 4/14

$463

Cheapflights Fare Finder

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

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sun 10/12

4:05 pm-11:10 am

1 stop35h 05m

Athens Eleftherios V.

Wed 11/5

12:25 pm-9:42 am

2 stops29h 17m

$590

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 5/5

1:30 pm-8:15 am

2 stops36h 45m

Dublin

Wed 5/21

9:50 am-7:58 pm

2 stops40h 08m

$642

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Thu 9/25

7:59 pm-7:45 pm

2 stops16h 46m

Barcelona-El Prat

Mon 10/6

9:10 pm-4:08 pm

2 stops25h 58m

$647

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 5/6

9:40 am-9:45 am

1 stop18h 05m

Dublin

Thu 5/15

9:50 am-12:19 pm

2 stops32h 29m

$658

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 5/6

6:30 am-9:45 am

1 stop21h 15m

Dublin

Thu 5/15

9:50 am-12:36 pm

1 stop32h 46m

$659

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Thu 9/25

4:05 pm-7:50 am

2 stops32h 45m

Barcelona-El Prat

Mon 10/6

12:15 pm-7:57 pm

1 stop14h 42m

$664

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Thu 9/25

11:38 am-12:15 pm

1 stop17h 37m

Barcelona-El Prat

Mon 10/6

6:30 pm-8:26 am

1 stop20h 56m

$672

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sun 10/12

7:05 pm-10:55 am

1 stop31h 50m

Athens Eleftherios V.

Tue 11/4

3:35 am-8:35 pm

2 stops25h 00m

$691

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 5/14

3:40 pm-11:10 am

1 stop13h 30m

London Heathrow

Wed 5/21

6:30 am-3:00 pm

2 stops14h 30m

$704

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Tue 4/29

5:41 pm-10:00 am

1 stop34h 19m

London Gatwick

Fri 5/2

2:00 pm-12:14 am

1 stop16h 14m

$704

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 60 results

...

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% 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 $523). Flying from St. Louis to Europe in June is currently the most expensive (average of $953). 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?

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.

Rainfall in Europe by month

In terms of precipitation, rainfall in Europe ranges from 0.4 - 3.9 inches per month. December is typically the wettest month, when rainfall can reach 3.9 in. July is typically the driest time to visit Europe when rainfall is around 0.4 in.

Temperature in Europe by month

If weather is an important factor for your trip to Europe, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Europe

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,917 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,323 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,269 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Austrian Airlines

7.6

Good

775 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France

7.5

Good

1,435 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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.
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 $435. Users have also found prices from $451 and $463 on United Airlines and Iberia, 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 - 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 $953). 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

Top 10 airlines flying from St. Louis to Europe

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$469	Average$920	FlexibilityNo cancel fee	On-time70%
Lufthansa	Cheapest$530	Average$990	FlexibilityNo cancel fee	On-time76%
KLM	Cheapest$540	Average$954	FlexibilityNo cancel fee	On-time75%
Iberia	Cheapest$558	Average$928	FlexibilityNo cancel fee	On-time77%
Air France	Cheapest$571	Average$930	FlexibilityNo cancel fee	On-time77%
American Airlines	Cheapest$576	Average$1,017	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$590	Average$985	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$591	Average$1,072	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$594	Average$991	FlexibilityNo cancel fee	On-time69%
Scandinavian Airlines	Cheapest$603	Average$1,141	FlexibilityNo cancel fee	On-time77%

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$313+ 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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Europe with Cheapflights

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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 April 15, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from St. Louis to Europe

Cheapest flights from St. Louis to EuropeExplore 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 15, 2025.

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 15, 2025.

Cheapflights Fare Finder

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

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.

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?

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 15, 2025.

Rainfall in Europe by month

Plan your trip to Europe by taking into account the average rainfall totals by month.

Temperature in Europe by month

Plan your trip to Europe by taking into account the average temperature totals by month.

Reviews of airlines servicing Europe

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?

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

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?

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

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

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

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

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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 15, 2025.