Cheap flights from St. Louis to Europe from $331

1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from St. Louis to Europe

Cheap round-trip flights

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Air Canada Logo
4:05 pm - 8:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
57h 50m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
11:15 am - 3:26 pmFCO  Rome Fiumicino-STL Lambert-St Louis
35h 11m1 stop Toronto Pearson Intl
$665Air Canada
Mon, Nov 23 - Tue, Dec 8
British Airways Logo
12:56 pm - 10:45 amSTL  Lambert-St Louis-FCO Rome Fiumicino
14h 49m1 stop Dallas/Fort Worth
British Airways Logo
1:10 pm - 8:46 pmFCO  Rome Fiumicino-STL Lambert-St Louis
14h 36m1 stop Philadelphia
$668British Airways
Mon, Nov 23 - Tue, Dec 8
Brussels Airlines Logo
1:17 pm - 8:30 amSTL  Lambert-St Louis-FCO Rome Fiumicino
12h 13m1 stop Washington, D.C. Dulles Intl
Brussels Airlines Logo
11:00 am - 7:30 pmFCO  Rome Fiumicino-STL Lambert-St Louis
15h 30m1 stop Washington, D.C. Dulles Intl
$668Brussels Airlines
Tue, Dec 8 - Tue, Dec 15
American Airlines Logo
12:54 pm - 12:55 pmSTL  Lambert-St Louis-FCO Rome Fiumicino
17h 01m2 stops Charlotte Douglas London Heathrow
American Airlines Logo
1:10 pm - 12:25 pmFCO  Rome Fiumicino-STL Lambert-St Louis
30h 15m1 stop Philadelphia
$669American Airlines
Mon, Nov 23 - Tue, Dec 8
American Airlines Logo
12:54 pm - 12:55 pmSTL  Lambert-St Louis-FCO Rome Fiumicino
17h 01m2 stops Charlotte Douglas London Heathrow
American Airlines Logo
1:10 pm - 12:02 amFCO  Rome Fiumicino-STL Lambert-St Louis
17h 52m2 stops Philadelphia Chicago O'Hare Intl
$669American Airlines
Mon, Nov 23 - Tue, Dec 8
Multiple Airlines Logo
4:05 pm - 10:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
11h 50m1 stop Toronto Pearson Intl
Multiple Airlines Logo
11:15 am - 3:26 pmFCO  Rome Fiumicino-STL Lambert-St Louis
35h 11m1 stop Toronto Pearson Intl
$669Multiple Airlines
Tue, Dec 8 - Tue, Dec 15
United Airlines Logo
5:34 pm - 7:45 amSTL  Lambert-St Louis-FCO Rome Fiumicino
31h 11m1 stop Chicago O'Hare Intl
United Airlines Logo
11:15 am - 3:26 pmFCO  Rome Fiumicino-STL Lambert-St Louis
35h 11m1 stop Toronto Pearson Intl
$672United Airlines
Mon, Nov 30 - Tue, Dec 15
United Airlines Logo
3:25 pm - 7:45 amSTL  Lambert-St Louis-FCO Rome Fiumicino
33h 20m1 stop Chicago O'Hare Intl
United Airlines Logo
11:15 am - 3:26 pmFCO  Rome Fiumicino-STL Lambert-St Louis
35h 11m1 stop Toronto Pearson Intl
$672United Airlines
Tue, Dec 1 - Tue, Dec 8
British Airways Logo
5:51 pm - 4:55 pmSTL  Lambert-St Louis-FCO Rome Fiumicino
16h 04m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
1:00 pm - 8:31 pmFCO  Rome Fiumicino-STL Lambert-St Louis
14h 31m1 stop Philadelphia
$673British Airways
Mon, Feb 1 - Fri, Feb 12
Air Canada Logo
4:05 pm - 10:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
11h 50m1 stop Toronto Pearson Intl
Air Canada Logo
11:15 am - 10:59 pmFCO  Rome Fiumicino-STL Lambert-St Louis
42h 44m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$674Air Canada
Tue, Dec 1 - Tue, Dec 8

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KLM flights from St. Louis to Europe

Our best KLM deals on St. Louis to Europe flight tickets
KLM
Nov 18
STL10:05 amLambert-St Louis
18h 15m
1 stop
FCO11:20 amRome Fiumicino
Nov 27
FCO10:25 amRome Fiumicino
16h 44m
1 stop
STL8:09 pmLambert-St Louis
$686
KLM
Feb 1
STL12:00 pmLambert-St Louis
16h 20m
1 stop
FCO11:20 amRome Fiumicino
Feb 12
FCO1:30 pmRome Fiumicino
15h 10m
1 stop
STL9:40 pmLambert-St Louis
$693
KLM
Jan 20
STL10:13 amLambert-St Louis
18h 32m
1 stop
MAD11:45 amMadrid Barajas
Jan 27
MAD10:50 amMadrid Barajas
17h 00m
2 stops
STL8:50 pmLambert-St Louis
$766

Iberia flights from St. Louis to Europe

Our best Iberia deals on St. Louis to Europe flight tickets
Iberia
Nov 16
STL10:21 amLambert-St Louis
17h 24m
1 stop
FCO10:45 amRome Fiumicino
Nov 24
FCO7:30 amRome Fiumicino
18h 57m
2 stops
STL7:27 pmLambert-St Louis
$690
Iberia
Apr 12
STL3:36 pmLambert-St Louis
12h 09m
1 stop
DUB9:45 amDublin
Apr 20
DUB11:45 amDublin
13h 45m
1 stop
STL7:30 pmLambert-St Louis
$704
Iberia
May 5
STL11:44 amLambert-St Louis
15h 36m
2 stops
DUB9:20 amDublin
May 19
DUB11:45 amDublin
13h 45m
1 stop
STL7:30 pmLambert-St Louis
$712

momondo Fare Finder

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

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Route

Depart

Return

Price

Cheapest round-trip

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Mon 11/23

4:05 pm-8:55 am

2 stops57h 50m

Rome Fiumicino

Tue 12/8

11:15 am-3:26 pm

1 stop35h 11m

$665

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Mon 11/23

12:56 pm-10:45 am

1 stop14h 49m

Rome Fiumicino

Tue 12/8

1:10 pm-8:46 pm

1 stop14h 36m

$668
Quickest round-trip

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Tue 12/8

1:17 pm-8:30 am

1 stop12h 13m

Rome Fiumicino

Tue 12/15

11:00 am-7:30 pm

1 stop15h 30m

$668

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Mon 11/23

12:54 pm-12:55 pm

2 stops17h 01m

Rome Fiumicino

Tue 12/8

1:10 pm-12:25 pm

1 stop30h 15m

$669

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Mon 11/23

12:54 pm-12:55 pm

2 stops17h 01m

Rome Fiumicino

Tue 12/8

1:10 pm-12:02 am

2 stops17h 52m

$669

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Tue 12/8

4:05 pm-10:55 am

1 stop11h 50m

Rome Fiumicino

Tue 12/15

11:15 am-3:26 pm

1 stop35h 11m

$669

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Mon 11/30

5:34 pm-7:45 am

1 stop31h 11m

Rome Fiumicino

Tue 12/15

11:15 am-3:26 pm

1 stop35h 11m

$672

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Tue 12/1

3:25 pm-7:45 am

1 stop33h 20m

Rome Fiumicino

Tue 12/8

11:15 am-3:26 pm

1 stop35h 11m

$672

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Mon 2/1

5:51 pm-4:55 pm

2 stops16h 04m

Rome Fiumicino

Fri 2/12

1:00 pm-8:31 pm

1 stop14h 31m

$673

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Tue 12/1

4:05 pm-10:55 am

1 stop11h 50m

Rome Fiumicino

Tue 12/8

11:15 am-10:59 pm

2 stops42h 44m

$674

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 February. Flight prices, which tend to average around $731, 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 February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $755.

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 Thursday. Travelers who choose to depart for Europe on a Thursday will often find tickets for as low as $931. Flights from St. Louis to Europe on a Friday will generally be more expensive and average around $1,292. 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 Frankfurt am Main for the best Lambert-St Louis - Europe flight prices

How far in advance should I book a flight from St. Louis 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 $1,073 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 $880 on momondo.

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

There are 3 cabin classes available to choose from on 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 34% 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

$331

Fastest flight time

6h 35m

Direct flights

Every day

Airports in Europe

4,106 airports
The best one-way flight to Europe from St. Louis in the past 72 hours is $331. The best round-trip flight deal from St. Louis to Europe found on momondo in the last 72 hours is $665.
The fastest flight from St. Louis to Europe takes 6h 35m
Direct flights go from St. Louis to Europe every day.
There are 4,106 airports in Europe. From St. Louis there are direct flights to Frankfurt am Main (FRA), London Heathrow (LHR).

Frequently asked questions about flying from St. Louis to Europe

  • 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
DeltaPriceFrom $250Free CancellationRating
7.8
8,703 reviews
Search Delta flights
Virgin AtlanticPriceFrom $304Free CancellationRating
7.5
698 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom $410Free CancellationRating
6.7
8,285 reviews
Search British Airways flights
LufthansaPriceFrom $494Free CancellationRating
6.8
8,290 reviews
Search Lufthansa flights
American AirlinesPriceFrom $502Free CancellationRating
7.0
12,228 reviews
Search American Airlines flights
KLMPriceFrom $507Free CancellationRating
7.8
1,595 reviews
Search KLM flights
IberiaPriceFrom $523Free CancellationRating
7.0
3,229 reviews
Search Iberia flights
United AirlinesPriceFrom $557Free CancellationRating
7.3
10,471 reviews
Search United Airlines flights
Air FrancePriceFrom $575Free CancellationRating
7.5
1,647 reviews
Search Air France flights
Air CanadaPriceFrom $648Free CancellationRating
7.1
11,881 reviews
Search Air Canada 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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