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Cheap flights from St. Louis to Europe from $198

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 1/18. 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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0 bags

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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.
Delta Logo
1:35 pm - 9:20 amSTL-DUB
13h 45m2 stops
Delta Logo
10:45 am - 8:47 pmDUB-STL
16h 02m2 stops
$424Delta
Find Deal
dom., nov. 23 - mar., dic. 9
Delta Logo
10:45 am - 8:45 amSTL-DUB
16h 00m2 stops
Delta Logo
11:30 am - 8:17 pmDUB-STL
14h 47m2 stops
$425Delta
Find Deal
lun., nov. 17 - mié., dic. 3
United Airlines Logo
3:19 pm - 8:10 amSTL-DUB
10h 51m1 stop
United Airlines Logo
9:00 am - 9:58 pmDUB-STL
42h 58m2 stops
$455United Airlines
Find Deal
vie., dic. 5 - mié., dic. 10
United Airlines Logo
6:30 am - 7:30 amSTL-DUB
19h 00m2 stops
United Airlines Logo
9:00 am - 7:27 pmDUB-STL
40h 27m2 stops
$460United Airlines
Find Deal
vie., ene. 16 - mié., ene. 21
Air Canada Logo
10:00 am - 7:10 amSTL-DUB
15h 10m2 stops
Air Canada Logo
9:00 am - 10:00 pmDUB-STL
43h 00m2 stops
$462Air Canada
Find Deal
mar., dic. 9 - mié., feb. 11
Air Canada Logo
4:05 pm - 4:45 pmSTL-ZRH
17h 40m2 stops
Air Canada Logo
12:40 pm - 12:29 pmZRH-STL
30h 49m2 stops
$479Air Canada
Find Deal
vie., ene. 30 - vie., feb. 6
American Airlines Logo
6:52 am - 8:15 amSTL-ZRH
18h 23m2 stops
American Airlines Logo
10:15 am - 10:44 pmZRH-STL
19h 29m1 stop
$483American Airlines
Find Deal
vie., ene. 30 - vie., feb. 6
Lufthansa Logo
3:50 pm - 12:20 pmSTL-ATH
12h 30m1 stop
Lufthansa Logo
6:15 am - 1:55 pmATH-STL
15h 40m1 stop
$484Lufthansa
Find Deal
dom., ene. 18 - dom., ene. 25
Lufthansa Logo
4:49 pm - 1:40 amSTL-ATH
24h 51m2 stops
Lufthansa Logo
6:35 am - 12:05 amATH-STL
25h 30m2 stops
$488Lufthansa
Find Deal
sáb., ene. 31 - lun., feb. 16
American Airlines Logo
3:37 pm - 7:10 pmSTL-ATH
19h 33m2 stops
American Airlines Logo
7:15 am - 9:15 pmATH-STL
22h 00m2 stops
$500American Airlines
Find Deal
dom., ene. 18 - dom., ene. 25

Aer Lingus flights from St. Louis to Europe

Our best Aer Lingus deals on St. Louis to Europe flight tickets
Aer Lingus
Dec 5
STL10:56 amLambert-St Louis
16h 09m
2 stops
FRA10:05 amFrankfurt am Main
Dec 12
FRA10:45 amFrankfurt am Main
20h 14m
2 stops
STL11:59 pmLambert-St Louis
$921
Find similar
Aer Lingus
Nov 14
STL6:00 amLambert-St Louis
19h 50m
2 stops
EDI7:50 amEdinburgh Turnhouse
Nov 19
EDI8:20 amEdinburgh Turnhouse
18h 40m
2 stops
STL9:00 pmLambert-St Louis
$996
Find similar

Lufthansa flights from St. Louis to Europe

Our best Lufthansa deals on St. Louis to Europe flight tickets
Lufthansa
Jan 18
STL3:50 pmLambert-St Louis
12h 30m
1 stop
ATH12:20 pmAthens Eleftherios V.
Jan 25
ATH6:15 amAthens Eleftherios V.
15h 40m
1 stop
STL1:55 pmLambert-St Louis
$484
Find similar
Lufthansa
Dec 2
STL6:42 pmLambert-St Louis
21h 08m
2 stops
CDG10:50 pmParis Charles de Gaulle
Dec 12
CDG6:15 amParis Charles de Gaulle
14h 40m
1 stop
STL1:55 pmLambert-St Louis
$488
Find similar
Lufthansa
Jan 10
STL11:22 amLambert-St Louis
17h 53m
2 stops
DUB11:15 amDublin
Jan 17
DUB5:10 amDublin
24h 49m
2 stops
STL11:59 pmLambert-St Louis
$491
Find similar

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 noviembre 13, 2025.
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. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

dom. 11/23

1:35 pm-9:20 am

2 stops13h 45m

Dublin

mar. 12/9

10:45 am-8:47 pm

2 stops16h 02m

$424

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

lun. 11/17

10:45 am-8:45 am

2 stops16h 00m

Dublin

mié. 12/3

11:30 am-8:17 pm

2 stops14h 47m

$425

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

vie. 12/5

3:19 pm-8:10 am

1 stop10h 51m

Dublin

mié. 12/10

9:00 am-9:58 pm

2 stops42h 58m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

vie. 1/16

6:30 am-7:30 am

2 stops19h 00m

Dublin

mié. 1/21

9:00 am-7:27 pm

2 stops40h 27m

$460

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mar. 12/9

10:00 am-7:10 am

2 stops15h 10m

Dublin

mié. 2/11

9:00 am-10:00 pm

2 stops43h 00m

$462

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

vie. 1/30

4:05 pm-4:45 pm

2 stops17h 40m

Zurich

vie. 2/6

12:40 pm-12:29 pm

2 stops30h 49m

$479

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

vie. 1/30

6:52 am-8:15 am

2 stops18h 23m

Zurich

vie. 2/6

10:15 am-10:44 pm

1 stop19h 29m

$483

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

dom. 1/18

3:50 pm-12:20 pm

1 stop12h 30m

Athens Eleftherios V.

dom. 1/25

6:15 am-1:55 pm

1 stop15h 40m

$484

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

sáb. 1/31

4:49 pm-1:40 am

2 stops24h 51m

Athens Eleftherios V.

lun. 2/16

6:35 am-12:05 am

2 stops25h 30m

$488

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

dom. 1/18

3:37 pm-7:10 pm

2 stops19h 33m

Athens Eleftherios V.

dom. 1/25

7:15 am-9:15 pm

2 stops22h 00m

$500

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 November. Flight prices, which tend to average around $709, 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 November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $724.

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 $668. Flights from St. Louis to Europe on a Friday will generally be more expensive and average around $848. 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 evening. momondo users have found flights departing from St. Louis to Europe in the evening for as low as $781. 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 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 $901 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 $731 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 32% 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

$418

Fastest flight time

8h 05m

Direct flights

Mon, Wed, Thu and Sat

Airports in Europe

2 airports
The best one-way flight to Europe from St. Louis in the past 72 hours is $418. The best round-trip flight deal from St. Louis to Europe found on momondo in the last 72 hours is $598.
The fastest flight from St. Louis to Europe takes 8h 05m
Direct flights go from St. Louis to Europe on Monday, Wednesday, Thursday and Saturday. There are no airlines offering direct flights.
There are 2 airports near Europe: Frankfurt am Main (FRA), 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 $488Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
LufthansaPriceFrom $524Free CancellationRating
6.8
7,570 reviews
Search Lufthansa flights
KLMPriceFrom $529Free CancellationRating
7.7
1,410 reviews
Search KLM flights
British AirwaysPriceFrom $546Free CancellationRating
6.7
7,516 reviews
Search British Airways flights
DeltaPriceFrom $552Free CancellationRating
7.9
8,007 reviews
Search Delta flights
Air CanadaPriceFrom $573Free CancellationRating
7.1
10,444 reviews
Search Air Canada flights
United AirlinesPriceFrom $578Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
Air FrancePriceFrom $582Free CancellationRating
7.4
1,486 reviews
Search Air France flights
IberiaPriceFrom $586Free CancellationRating
7.0
3,010 reviews
Search Iberia flights
Scandinavian AirlinesPriceFrom $602Free CancellationRating
7.4
1,575 reviews
Search Scandinavian Airlines 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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