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Cheap flights from St. Louis to Europe from $281

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 2/9. 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.
United Airlines Logo
1:11 pm - 8:10 am
STL
-
DUB
12h 59m
1 stop
United Airlines Logo
9:00 am - 8:23 pm
DUB
-
STL
41h 23m
2 stops
$458United Airlines
mié., feb. 18 - vie., feb. 27
British Airways Logo
12:11 pm - 9:40 am
STL
-
DUB
15h 29m
2 stops
British Airways Logo
10:30 am - 7:30 pm
DUB
-
STL
15h 00m
1 stop
$460British Airways
mar., abr. 14 - mié., abr. 22
United Airlines Logo
9:10 am - 9:45 am
STL
-
DUB
18h 35m
1 stop
United Airlines Logo
9:50 am - 10:30 pm
DUB
-
STL
42h 40m
2 stops
$462United Airlines
mié., abr. 29 - mar., may. 5
Air Canada Logo
9:55 am - 7:10 am
STL
-
DUB
39h 15m
2 stops
Air Canada Logo
9:00 am - 9:05 pm
DUB
-
STL
42h 05m
2 stops
$466Air Canada
mié., feb. 25 - dom., mar. 1
Lufthansa Logo
4:49 pm - 1:40 am
STL
-
ATH
24h 51m
2 stops
Lufthansa Logo
6:25 am - 11:51 pm
ATH
-
STL
24h 26m
2 stops
$484Lufthansa
mar., mar. 3 - lun., mar. 9
Lufthansa Logo
11:39 am - 1:40 am
STL
-
ATH
30h 01m
2 stops
Lufthansa Logo
6:25 am - 11:59 pm
ATH
-
STL
25h 34m
2 stops
$489Lufthansa
mar., feb. 24 - mar., mar. 3
Delta Logo
9:45 am - 9:45 am
STL
-
MXP
17h 00m
1 stop
Delta Logo
11:05 am - 11:36 pm
MXP
-
STL
19h 31m
1 stop
$499Delta
dom., feb. 8 - mié., feb. 18
Air Canada Logo
4:05 pm - 12:55 pm
STL
-
ATH
36h 50m
2 stops
Air Canada Logo
12:15 pm - 3:29 pm
ATH
-
STL
34h 14m
1 stop
$501Air Canada
mar., mar. 3 - lun., mar. 9
Delta Logo
9:45 am - 10:35 am
STL
-
MXP
17h 50m
2 stops
Delta Logo
9:25 am - 8:09 pm
MXP
-
STL
17h 44m
1 stop
$503Delta
dom., feb. 8 - jue., feb. 19
American Airlines Logo
8:00 am - 7:30 am
STL
-
LGW
17h 30m
2 stops
American Airlines Logo
11:20 am - 8:35 am
LGW
-
STL
26h 15m
2 stops
$631American Airlines
mié., mar. 4 - jue., mar. 12

Lufthansa flights from St. Louis to Europe

Our best Lufthansa deals on St. Louis to Europe flight tickets
Lufthansa
Feb 23
STL6:55 pmLambert-St Louis
16h 15m
2 stops
DUB5:10 pmDublin
Mar 1
DUB5:10 amDublin
14h 45m
1 stop
STL1:55 pmLambert-St Louis
$478
Lufthansa
Mar 3
STL4:49 pmLambert-St Louis
24h 51m
2 stops
ATH1:40 amAthens Eleftherios V.
Mar 9
ATH6:25 amAthens Eleftherios V.
24h 26m
2 stops
STL11:51 pmLambert-St Louis
$484
Lufthansa
Feb 24
STL11:39 amLambert-St Louis
30h 01m
2 stops
ATH1:40 amAthens Eleftherios V.
Mar 3
ATH6:25 amAthens Eleftherios V.
25h 34m
2 stops
STL11:59 pmLambert-St Louis
$489

United Airlines flights from St. Louis to Europe

Our best United Airlines deals on St. Louis to Europe flight tickets
United Airlines
Feb 18
STL1:11 pmLambert-St Louis
12h 59m
1 stop
DUB8:10 amDublin
Feb 27
DUB9:00 amDublin
41h 23m
2 stops
STL8:23 pmLambert-St Louis
$458
United Airlines
Apr 29
STL9:10 amLambert-St Louis
18h 35m
1 stop
DUB9:45 amDublin
May 5
DUB9:50 amDublin
42h 40m
2 stops
STL10:30 pmLambert-St Louis
$462
United Airlines
Feb 18
STL7:41 amLambert-St Louis
17h 49m
2 stops
DUB7:30 amDublin
Feb 27
DUB9:00 amDublin
41h 23m
2 stops
STL8:23 pmLambert-St Louis
$463

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 enero 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

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mié. 2/18

1:11 pm-8:10 am

1 stop12h 59m

Dublin

vie. 2/27

9:00 am-8:23 pm

2 stops41h 23m

$458

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mar. 4/14

12:11 pm-9:40 am

2 stops15h 29m

Dublin

mié. 4/22

10:30 am-7:30 pm

1 stop15h 00m

$460

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mié. 4/29

9:10 am-9:45 am

1 stop18h 35m

Dublin

mar. 5/5

9:50 am-10:30 pm

2 stops42h 40m

$462

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mié. 2/25

9:55 am-7:10 am

2 stops39h 15m

Dublin

dom. 3/1

9:00 am-9:05 pm

2 stops42h 05m

$466

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

mar. 3/3

4:49 pm-1:40 am

2 stops24h 51m

Athens Eleftherios V.

lun. 3/9

6:25 am-11:51 pm

2 stops24h 26m

$484

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

mar. 2/24

11:39 am-1:40 am

2 stops30h 01m

Athens Eleftherios V.

mar. 3/3

6:25 am-11:59 pm

2 stops25h 34m

$489

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

dom. 2/8

9:45 am-9:45 am

1 stop17h 00m

Milan Malpensa

mié. 2/18

11:05 am-11:36 pm

1 stop19h 31m

$499

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

mar. 3/3

4:05 pm-12:55 pm

2 stops36h 50m

Athens Eleftherios V.

lun. 3/9

12:15 pm-3:29 pm

1 stop34h 14m

$501

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

dom. 2/8

9:45 am-10:35 am

2 stops17h 50m

Milan Malpensa

jue. 2/19

9:25 am-8:09 pm

1 stop17h 44m

$503

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

mié. 3/4

8:00 am-7:30 am

2 stops17h 30m

London Gatwick

jue. 3/12

11:20 am-8:35 am

2 stops26h 15m

$631

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 October. 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 October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $709.

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 Saturday will generally be more expensive and average around $863. 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 $860 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 $768 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 33% 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

$439

Fastest flight time

8h 00m

Direct flights

Mon, Tue, 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 $439. The best round-trip flight deal from St. Louis to Europe found on momondo in the last 72 hours is $679.
The fastest flight from St. Louis to Europe takes 8h 00m
Direct flights go from St. Louis to Europe on Monday, Tuesday, 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 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 $390Free CancellationRating
7.2
11,201 reviews
Search American Airlines flights
LufthansaPriceFrom $482Free CancellationRating
6.8
7,749 reviews
Search Lufthansa flights
British AirwaysPriceFrom $505Free CancellationRating
6.7
7,704 reviews
Search British Airways flights
KLMPriceFrom $507Free CancellationRating
7.7
1,443 reviews
Search KLM flights
DeltaPriceFrom $557Free CancellationRating
7.9
8,123 reviews
Search Delta flights
United AirlinesPriceFrom $560Free CancellationRating
7.4
9,209 reviews
Search United Airlines flights
IberiaPriceFrom $571Free CancellationRating
7.0
3,099 reviews
Search Iberia flights
Air CanadaPriceFrom $573Free CancellationRating
7.1
10,666 reviews
Search Air Canada flights
Air FrancePriceFrom $582Free CancellationRating
7.4
1,528 reviews
Search Air France flights
Scandinavian AirlinesPriceFrom $602Free CancellationRating
7.3
1,672 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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