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Cheap flights from St. Louis to Europe from $240

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Europe departing on 7/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Europe

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:40 pm - 4:20 pm
STL
-
DUB
12h 40m
1 stop
Multiple Airlines Logo
9:40 am - 10:19 pm
DUB
-
STL
18h 39m
2 stops
$539Multiple Airlines
Sun, Apr 26 - Tue, May 12
British Airways Logo
9:35 pm - 7:30 pm
STL
-
DUB
15h 55m
1 stop
British Airways Logo
3:15 pm - 7:30 pm
DUB
-
STL
34h 15m
1 stop
$540British Airways
Tue, Apr 21 - Tue, Apr 28
British Airways Logo
2:33 pm - 9:40 am
STL
-
DUB
13h 07m
2 stops
British Airways Logo
12:50 pm - 7:30 pm
DUB
-
STL
12h 40m
1 stop
$543British Airways
Tue, Apr 14 - Wed, Apr 22
United Airlines Logo
8:30 am - 7:20 am
STL
-
DUB
16h 50m
1 stop
United Airlines Logo
9:50 am - 3:25 pm
DUB
-
STL
11h 35m
1 stop
$546United Airlines
Tue, Apr 14 - Wed, Apr 22
United Airlines Logo
10:00 am - 7:20 am
STL
-
DUB
15h 20m
2 stops
United Airlines Logo
9:50 am - 3:25 pm
DUB
-
STL
11h 35m
1 stop
$551United Airlines
Wed, Apr 8 - Thu, Apr 16
Air Canada Logo
10:00 am - 8:15 am
STL
-
DUB
16h 15m
2 stops
Air Canada Logo
9:50 am - 9:13 pm
DUB
-
STL
17h 23m
2 stops
$556Air Canada
Tue, Apr 21 - Tue, Apr 28
Lufthansa Logo
3:30 pm - 4:40 pm
STL
-
LHR
19h 10m
1 stop
Lufthansa Logo
9:00 am - 9:22 pm
LHR
-
STL
18h 22m
2 stops
$657Lufthansa
Wed, Sep 2 - Wed, Sep 9
Lufthansa Logo
3:30 pm - 4:40 pm
STL
-
LHR
19h 10m
1 stop
Lufthansa Logo
6:30 am - 1:25 pm
LHR
-
STL
12h 55m
1 stop
$658Lufthansa
Wed, Aug 19 - Fri, Aug 28
Air Canada Logo
5:00 am - 8:35 am
STL
-
LHR
21h 35m
2 stops
Air Canada Logo
6:50 am - 8:02 pm
LHR
-
STL
19h 12m
2 stops
$670Air Canada
Wed, Aug 19 - Tue, Sep 1
American Airlines Logo
3:24 pm - 1:05 pm
STL
-
CDG
14h 41m
2 stops
American Airlines Logo
11:45 am - 10:19 pm
CDG
-
STL
17h 34m
2 stops
$687American Airlines
Tue, Apr 21 - Thu, May 7

British Airways flights from St. Louis to Europe

Our best British Airways deals on St. Louis to Europe flight tickets
British Airways
Apr 21
STL9:35 pmLambert-St Louis
15h 55m
1 stop
DUB7:30 pmDublin
Apr 28
DUB3:15 pmDublin
34h 15m
1 stop
STL7:30 pmLambert-St Louis
$540
British Airways
Aug 16
STL9:40 pmLambert-St Louis
12h 40m
1 stop
DUB4:20 pmDublin
Aug 25
DUB10:30 amDublin
15h 00m
1 stop
STL7:30 pmLambert-St Louis
$541
British Airways
Apr 14
STL2:33 pmLambert-St Louis
13h 07m
2 stops
DUB9:40 amDublin
Apr 22
DUB12:50 pmDublin
12h 40m
1 stop
STL7:30 pmLambert-St Louis
$550

Lufthansa flights from St. Louis to Europe

Our best Lufthansa deals on St. Louis to Europe flight tickets
Lufthansa
Aug 16
STL3:30 pmLambert-St Louis
19h 20m
1 stop
DUB4:50 pmDublin
Aug 25
DUB6:00 amDublin
13h 25m
1 stop
STL1:25 pmLambert-St Louis
$510
Lufthansa
Aug 23
STL3:30 pmLambert-St Louis
19h 20m
1 stop
DUB4:50 pmDublin
Sep 4
DUB6:05 amDublin
13h 20m
1 stop
STL1:25 pmLambert-St Louis
$512
Lufthansa
Aug 26
STL1:18 pmLambert-St Louis
26h 57m
2 stops
DUB10:15 pmDublin
Sep 8
DUB6:00 amDublin
13h 25m
1 stop
STL1:25 pmLambert-St Louis
$516

momondo 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, momondo users made 832,500 searches. Data last updated March 6, 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. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 4/26

9:40 pm-4:20 pm

1 stop12h 40m

Dublin

Tue 5/12

9:40 am-10:19 pm

2 stops18h 39m

$539

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 4/21

9:35 pm-7:30 pm

1 stop15h 55m

Dublin

Tue 4/28

3:15 pm-7:30 pm

1 stop34h 15m

$540
Quickest round-trip

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 4/14

2:33 pm-9:40 am

2 stops13h 07m

Dublin

Wed 4/22

12:50 pm-7:30 pm

1 stop12h 40m

$543

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 4/14

8:30 am-7:20 am

1 stop16h 50m

Dublin

Wed 4/22

9:50 am-3:25 pm

1 stop11h 35m

$546

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 4/8

10:00 am-7:20 am

2 stops15h 20m

Dublin

Thu 4/16

9:50 am-3:25 pm

1 stop11h 35m

$551

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 4/21

10:00 am-8:15 am

2 stops16h 15m

Dublin

Tue 4/28

9:50 am-9:13 pm

2 stops17h 23m

$556

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 9/2

3:30 pm-4:40 pm

1 stop19h 10m

London Heathrow

Wed 9/9

9:00 am-9:22 pm

2 stops18h 22m

$657

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 8/19

3:30 pm-4:40 pm

1 stop19h 10m

London Heathrow

Fri 8/28

6:30 am-1:25 pm

1 stop12h 55m

$658

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 8/19

5:00 am-8:35 am

2 stops21h 35m

London Heathrow

Tue 9/1

6:50 am-8:02 pm

2 stops19h 12m

$670

St. LouisParis

STL - CDG

STLCDG

Lambert-St Louis

Tue 4/21

3:24 pm-1:05 pm

2 stops14h 41m

Paris Charles de Gaulle

Thu 5/7

11:45 am-10:19 pm

2 stops17h 34m

$687

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

What is the cheapest month to fly to Europe?

The cheapest month to fly to Europe from St. Louis is in January. Flight prices, which tend to average around $672, 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 January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $699.

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 Monday. Travelers who choose to depart for Europe on a Monday will often find tickets for as low as $688. Flights from St. Louis to Europe on a Saturday will generally be more expensive and average around $989. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Fly from Lambert-St Louis to London Heathrow 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 weeks ahead of your departure date. In general, you can expect to find flights to Europe for around $858 when searching 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 $736 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.

Can stopping save me money on St. Louis to Europe flights?

You could potentially save up to 50% on your flight if you consider stops on a St. Louis to Europe flight.

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

$444

Fastest flight time

8h 00m

Direct flights

Mon, Wed, Thu and Sat

Airports in Europe

4,107 airports
The best one-way flight to Europe from St. Louis in the past 72 hours is $444. The best round-trip flight deal from St. Louis to Europe found on momondo in the last 72 hours is $844.
The fastest flight from St. Louis to Europe takes 8h 00m
Direct flights go from St. Louis to Europe on Monday, Wednesday, Thursday and Saturday. There are no airlines offering direct flights.
There are 4,107 airports in Europe. From St. Louis there are direct flights to London Heathrow (LHR).
Search flight deals

  • 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?

  • 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
American AirlinesPriceFrom $390Free CancellationRating
7.1
11,398 reviews
Search American Airlines flights
British AirwaysPriceFrom $458Free CancellationRating
6.7
7,778 reviews
Search British Airways flights
LufthansaPriceFrom $482Free CancellationRating
6.8
7,833 reviews
Search Lufthansa flights
KLMPriceFrom $507Free CancellationRating
7.8
1,467 reviews
Search KLM flights
DeltaPriceFrom $507Free CancellationRating
7.9
8,271 reviews
Search Delta flights
IberiaPriceFrom $552Free CancellationRating
7.0
3,135 reviews
Search Iberia flights
United AirlinesPriceFrom $560Free CancellationRating
7.4
9,404 reviews
Search United Airlines flights
Scandinavian AirlinesPriceFrom $561Free CancellationRating
7.3
1,705 reviews
Search Scandinavian Airlines flights
Air CanadaPriceFrom $572Free CancellationRating
7.1
10,789 reviews
Search Air Canada flights
Air FrancePriceFrom $616Free CancellationRating
7.4
1,542 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.

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