What is the cheapest airline that flies from Lambert-St Louis to Europe?

Scandinavian Airlines, KLM, and Iberia are the most popular carriers operating from Lambert-St Louis to Europe

What airlines fly to Europe?

American Airlines, United Airlines and British Airways are the top three most popular airlines that fly to Europe from St. Louis according to our data. American Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Europe. Keep in mind that there are 12 different airlines that fly to Europe on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Lambert-St Louis Airport to Europe?

Prices for flights from Lambert-St Louis Airport to Europe are refreshed on a daily basis.

How many operators does momondo search for flights from Lambert-St Louis Airport to Europe?

As of February 2025, there are 11 operators available to choose from for flights from Lambert-St Louis Airport to Europe.

How old do you have to be to fly from Lambert-St Louis Airport to Europe?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Europe.

What documentation or ID do you need to fly to Europe?

The necessary travel and health documents for your Europe trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$258 Cheap Flights from St. Louis to Europe in 2025

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Find the cheapest flights from St. Louis to Europe

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One-way

Last minute

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Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Europe that have been recently found on momondo from popular airlines, departing in the coming months.

8:00 am - 10:05 amSTL-DUB

21h 05m2 stops

9:50 am - 12:20 pmDUB-STL

32h 30m2 stops

$509United Airlines

Find Deal

Mon, Mar 24 - Tue, Apr 8

8:25 am - 10:20 amSTL-DUB

19h 55m1 stop

9:50 am - 2:59 pmDUB-STL

11h 09m1 stop

$510United Airlines

Find Deal

Wed, Apr 2 - Wed, Apr 9

9:39 am - 8:15 amSTL-DUB

16h 36m2 stops

9:50 am - 2:59 pmDUB-STL

11h 09m1 stop

$512Air Canada

Find Deal

Wed, Apr 2 - Wed, Apr 9

9:39 am - 8:15 amSTL-DUB

16h 36m2 stops

9:50 am - 2:42 pmDUB-STL

34h 52m2 stops

$518Air Canada

Find Deal

Wed, Apr 2 - Wed, Apr 9

11:55 am - 7:55 amSTL-MAD

14h 00m1 stop

10:00 am - 11:56 pmMAD-STL

19h 56m1 stop

$549American Airlines

Find Deal

Tue, Mar 11 - Wed, Mar 19

11:55 am - 5:05 pmSTL-MAD

22h 10m2 stops

1:45 pm - 8:58 pmMAD-STL

14h 13m1 stop

$551British Airways

Find Deal

Wed, Apr 2 - Tue, Apr 8

10:12 am - 7:55 amSTL-MAD

15h 43m1 stop

12:40 pm - 10:18 pmMAD-STL

15h 38m2 stops

$554American Airlines

Find Deal

Tue, Mar 11 - Tue, Mar 18

11:55 am - 9:45 amSTL-DUB

15h 50m2 stops

12:45 pm - 11:29 pmDUB-STL

16h 44m2 stops

$555British Airways

Find Deal

Wed, Apr 2 - Wed, Apr 9

4:45 pm - 11:00 amSTL-DUB

13h 15m1 stop

9:20 am - 11:15 pmDUB-STL

19h 55m1 stop

$628Lufthansa

Find Deal

Sun, Mar 23 - Sun, Mar 30

11:59 am - 1:00 pmSTL-MAD

18h 01m2 stops

11:15 am - 11:32 pmMAD-STL

19h 17m1 stop

$663Lufthansa

Find Deal

Tue, Feb 25 - Mon, Mar 3

Iberia flights from St. Louis to Europe

Our best Iberia deals on St. Louis to Europe flight tickets

Iberia

Apr 2

STL11:55 amLambert-St Louis

13h 00m

1 stop

MAD7:55 amMadrid Barajas

Apr 8

MAD11:35 amMadrid Barajas

13h 27m

1 stop

STL6:02 pmLambert-St Louis

$527

Find similar

Iberia

Mar 3

STL9:29 amLambert-St Louis

16h 36m

1 stop

CDG9:05 amParis Charles de Gaulle

Mar 10

CDG6:45 pmParis Charles de Gaulle

33h 33m

2 stops

STL10:18 pmLambert-St Louis

$593

Find similar

Iberia

Mar 18

STL9:28 amLambert-St Louis

17h 57m

1 stop

MAD9:25 amMadrid Barajas

Mar 25

MAD2:20 pmMadrid Barajas

37h 58m

2 stops

STL10:18 pmLambert-St Louis

$660

Find similar

American Airlines flights from St. Louis to Europe

Our best American Airlines deals on St. Louis to Europe flight tickets

American Airlines

Mar 11

STL11:55 amLambert-St Louis

14h 00m

1 stop

MAD7:55 amMadrid Barajas

Mar 19

MAD10:00 amMadrid Barajas

19h 56m

1 stop

STL11:56 pmLambert-St Louis

$549

Find similar

American Airlines

Mar 11

STL10:12 amLambert-St Louis

15h 43m

1 stop

MAD7:55 amMadrid Barajas

Mar 18

MAD12:40 pmMadrid Barajas

15h 38m

2 stops

STL10:18 pmLambert-St Louis

$554

Find similar

American Airlines

Feb 26

STL3:10 pmLambert-St Louis

14h 05m

2 stops

DUB11:15 amDublin

Mar 11

DUB2:05 pmDublin

14h 51m

2 stops

STL11:56 pmLambert-St Louis

$571

Find similar

How to get the cheapest flight ticket from St. Louis to Europe

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Europe?

The cheapest month to fly to Europe from St. Louis is in April. Flight prices, which tend to average around $760, are often lower during this time because this is during the off-season. If you aren’t able to travel to Europe during the month of April, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $786.

What is the cheapest day to depart on your flight to Europe?

The cheapest day to depart from St. Louis to Europe is on a Wednesday. Travelers who choose to depart for Europe on a Wednesday will often find tickets for as low as $846. Flights from St. Louis to Europe on a Tuesday will generally be more expensive and average around $1,006. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Europe?

According to our data, the cheapest time of day to fly to Europe is in the morning. momondo users have found flights departing from St. Louis to Europe in the morning for as low as $915. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $958. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Lambert-St Louis to Europe flight route?

Fly from Lambert-St Louis to Frankfurt am Main for the best Lambert-St Louis - Europe flight prices

How far in advance should I book a flight to Europe?

You are more likely to see cheaper flights to Europe from St. Louis when booking 9 weeks ahead of your departure date. In general, you can expect to find flights to Europe for around $951 when searching 9 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Europe from St. Louis for as low as $809 on momondo.

What cabin class options are available on Lambert-St Louis to Europe flights?

There are 3 cabin classes available to choose from on Lambert-St Louis to Europe flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap St. Louis to Europe flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Europe

Best Price Found	$258
Fastest flight time	8h 40m
Direct flights	Mon, Thu and Sat
Airports in Europe	10 airports

The best one-way flight to Europe from St. Louis in the past 72 hours is $258. The best round-trip flight deal from St. Louis to Europe found on momondo in the last 72 hours is $509.

The fastest flight from St. Louis to Europe takes 8h 40m

Direct flights go from St. Louis to Europe on Monday, Thursday and Saturday. Airlines offering direct flights are: United Airlines and Lufthansa.

There are 10 airports near Europe: Dublin (DUB), Madrid Barajas (MAD), Rome Fiumicino (FCO), London City (LCY), Frankfurt am Main (FRA), Paris Orly (ORY), Paris Charles de Gaulle (CDG), London Heathrow (LHR), Barcelona-El Prat (BCN), London Gatwick (LGW)

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When did momondo last update prices for flights from Lambert-St Louis Airport to Europe?
Prices for flights from Lambert-St Louis Airport to Europe are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Europe?
As of February 2025, there are 11 operators available to choose from for flights from Lambert-St Louis Airport to Europe.
How old do you have to be to fly from Lambert-St Louis Airport to Europe?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Europe.
What documentation or ID do you need to fly to Europe?
The necessary travel and health documents for your Europe trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Europe

Compare and see reviews for airlines that fly from St. Louis to Europe with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $488	Free Cancellation	Rating 6.6 6,774 reviews	Search British Airways flights
KLM	PriceFrom $490	Free Cancellation	Rating 7.8 1,335 reviews	Search KLM flights
Lufthansa	PriceFrom $530	Free Cancellation	Rating 6.7 7,015 reviews	Search Lufthansa flights
Iberia	PriceFrom $553	Free Cancellation	Rating 7.0 2,637 reviews	Search Iberia flights
Delta	PriceFrom $556	Free Cancellation	Rating 8.0 8,332 reviews	Search Delta flights
American Airlines	PriceFrom $564	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $592	Free Cancellation	Rating 7.4 8,845 reviews	Search United Airlines flights
Air Canada	PriceFrom $597	Free Cancellation	Rating 7.0 8,706 reviews	Search Air Canada flights
Austrian Airlines	PriceFrom $611	Free Cancellation	Rating 7.5 780 reviews	Search Austrian Airlines flights
Air France	PriceFrom $633	Free Cancellation	Rating 7.4 1,462 reviews	Search Air France flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Europe?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Europe. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Europe with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Europe flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Europe?

Once you have performed a search for St. Louis to Europe flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Europe right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Europe from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.