$231 Find Cheap Flights from St. Louis to Europe

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Europe departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from St. Louis to Europe

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
London
London2 stops$655
Paris
Paris1 stop$494
Rome
Rome2 stops$442
Madrid
Madrid2 stops$426
Athens
Athens1 stop$443
Lisbon
Lisbon2 stops$451
Istanbul
Istanbul2 stops$529
Dublin
Dublin1 stop$417
Amsterdam
Amsterdam1 stop$509
Milan
Milan2 stops$442
Zurich
Zurich2 stops$450
Copenhagen
Copenhagen2 stops$533
Munich
Munich2 stops$581
Reykjavik
Reykjavik1 stop$773
Berlin
Berlin1 stop$568
Edinburgh
Edinburgh1 stop$600
Prague
Prague2 stops$447
London
London2 stops$655
Paris
Paris1 stop$494
Rome
Rome2 stops$442
Madrid
Madrid2 stops$426
Athens
Athens1 stop$443
Lisbon
Lisbon2 stops$451
Istanbul
Istanbul2 stops$529
Dublin
Dublin1 stop$417
Amsterdam
Amsterdam1 stop$509
Milan
Milan2 stops$442
Zurich
Zurich2 stops$450
Copenhagen
Copenhagen2 stops$533
Munich
Munich2 stops$581
Reykjavik
Reykjavik1 stop$773
Berlin
Berlin1 stop$568
Edinburgh
Edinburgh1 stop$600
Prague
Prague2 stops$447

Book Cheap St. Louis to Europe Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Europe that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Europe

vie., dic. 5 - mar., dic. 9
Austrian Airlines Logo
11:50 am - 7:30 amSTL-DUB
13h 40m1 stop
Austrian Airlines Logo
9:30 am - 11:42 pmDUB-STL
20h 12m1 stop
$417Austrian Airlines
Find Deal
mar., dic. 2 - vie., dic. 12
Lufthansa Logo
11:50 am - 7:30 amSTL-DUB
13h 40m1 stop
Lufthansa Logo
5:10 am - 1:55 pmDUB-STL
14h 45m1 stop
$419Lufthansa
Find Deal
dom., mar. 8 - mar., mar. 17
Delta Logo
6:59 pm - 9:55 amSTL-ATH
31h 56m1 stop
Delta Logo
11:50 am - 11:42 pmATH-STL
18h 52m2 stops
$443Delta
Find Deal
mar., feb. 24 - mar., mar. 10
British Airways Logo
6:43 pm - 7:30 pmSTL-ATH
16h 47m2 stops
British Airways Logo
7:35 am - 11:48 pmATH-STL
23h 13m2 stops
$446British Airways
Find Deal
mié., dic. 10 - mié., ene. 14
American Airlines Logo
11:50 am - 3:05 pmSTL-ATH
19h 15m2 stops
American Airlines Logo
7:50 am - 11:12 pmATH-STL
23h 22m2 stops
$453American Airlines
Find Deal
mar., feb. 24 - mar., mar. 10
Delta Logo
6:35 am - 1:35 pmSTL-ATH
23h 00m2 stops
Delta Logo
12:20 pm - 9:10 pmATH-STL
15h 50m1 stop
$458Delta
Find Deal
mié., ene. 21 - mié., ene. 28
American Airlines Logo
2:54 pm - 12:25 pmSTL-FCO
14h 31m2 stops
American Airlines Logo
8:20 pm - 8:51 amFCO-STL
19h 31m2 stops
$460American Airlines
Find Deal
mar., ene. 13 - jue., ene. 22
British Airways Logo
6:46 pm - 4:55 pmSTL-FCO
15h 09m2 stops
British Airways Logo
5:50 pm - 6:14 pmFCO-STL
31h 24m2 stops
$463British Airways
Find Deal
jue., ene. 8 - mié., ene. 21
Air Canada Logo
4:05 pm - 10:30 amSTL-CDG
35h 25m2 stops
Air Canada Logo
2:00 pm - 2:30 pmCDG-STL
31h 30m2 stops
$536Air Canada
Find Deal
mar., ene. 6 - mié., ene. 14
Air Canada Logo
4:05 pm - 8:30 amSTL-LHR
10h 25m1 stop
Air Canada Logo
1:00 pm - 3:29 pmLHR-STL
32h 29m1 stop
$660Air Canada
Find Deal
Booking Insights

KAYAK's insights & trends for St. Louis to Europe flights

Get data-powered insights and trends into flights from St. Louis to Europe to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest St. Louis to Europe flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Europe from St. Louis found in the last 72 hours was to Frankfurt am Main, at $654 round-trip. The most popular route is from St. Louis (STL) to Frankfurt am Main Airport (FRA), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $654.

Can I save money by flying with a layover from St. Louis to Europe?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $857, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from St. Louis to Europe?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Europe, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Europe is November, when tickets cost $711 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,338 and $1,199 respectively.

What’s the cheapest day of the week to fly from St. Louis to Europe?

The average price of all round-trip flights from St. Louis to Europe clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from St. Louis to Europe, look for departures on Sundays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Europe, Thursday is the cheapest day to fly and Saturday is the most expensive.

How far in advance should I book a flight from St. Louis to Europe?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Europe, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Europe, you should book around 4 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$231
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from St. Louis to Dublin

FAQs - booking Europe flights

  • What is the luggage policy for airlines flying from STL Airport?

    American Airlines flights from St. Louis to Europe allow one personal item and a carry-on bag. Your item must fit under the seat in front of you. Personal items and carry-ons should not exceed 18 x 14 x 8 inches and 22 x 14 x 9 inches, respectively. The carry-on bag and personal items should also not exceed 50 lbs.

  • What special services are available for mothers traveling with infants at St. Louis Lambert International Airport?

    STL Airport provides special rooms known as Lactation Suites for mothers who need to breastfeed or pump milk. You can find these suites after going through security near gates E33, C9, and A10 in each concourse. These Lactation Suites have amenities like sinks, power outlets, and comfortable chairs. The Suites are designed to be accessible to other family members and friends as they have extra seats.

  • What accessibility services does STL offer travelers on flights from St. Louis to Europe with limited mobility?

    STL Airport has elevators between the lower and upper levels in the terminals and all parking garages. All terminals and parking garage elevators have Braille signage, raised numbers, and audible information. STL has an information and paging booth that operates from 7 a.m. to 11 p.m. at Terminal 1 between baggage claim and carousels, while at Terminal 2, it is on the lower level near Door 14.

  • When taking a flight from St. Louis to Europe, which is the best airport to fly into in Central Europe?

    Frankfurt am Main International Airport (FRA) is the best airport to fly into in Central Europe. Lufthansa Airlines provides several daily non-stop flights to Frankfurt from STL Airport. Furthermore, travelers can find connections to several other destinations in Europe from FRA Airport, with popular domestic destinations like Berlin (BER) and Munich (MUC) and international destinations like Paris (CDG), Venice (VCE), and Warsaw (WAW).

  • How does KAYAK find such low prices on flights from St. Louis to Europe?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Europe.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Europe?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Europe is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Europe?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Europe with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Europe?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Europe up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Europe?

    The cheapest time of day to fly to Europe is generally at night, when round-trip flights cost $772 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Europe is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $958.

Top tips for finding cheap flights to Europe

  • Looking for a cheap flight? 25% of our users found tickets from St. Louis to the following destinations at these prices or less: Frankfurt am Main $509 one-way - $915 round-trip
  • Passengers can get flights from St. Louis to Europe from Lambert St. Louis International Airport (STL), the primary commercial airport serving the metropolitan area. STL is a hub for American Airlines, offering flights to various destination airports across Europe, such as Heathrow Airport (LHR) in London, Istanbul Airport (IST) in Istanbul, and Madrid-Barajas Airport (MAD) in Madrid.
  • The best way to get to the airport from downtown St. Louis is by taking the Metrolink. The distance between downtown and the airport is around 13 miles. The train departs from Civic Center Station every 20 minutes for a 32-minute commute to STL Airport Terminal 1.
  • American Airlines allows minors between 5 and 14 to travel alone on flights from St. Louis to Europe using the unaccompanied minor program. The airline will provide an escort at airports and on board. The service is optional for minors between the ages of 15 and 17. If requested, an extra fee is charged.
  • St. Louis Lambert International Airport has three lounges where you can retreat while waiting for your flight from St. Louis to Europe. American Airlines Admirals Lounge is at Terminal 1 for certain American Airlines passengers; James S. McDonell USO Lounge at Terminal 1 for military members and their families; and Wingtips Lounge at Terminal 2, post-security.
  • American Airlines is a sustainable airline with flights from St. Louis to Europe. The airline achieves this by using sustainable aviation fuel on all its aircraft, which causes up to a 60% decrease in carbon footprint. It also encourages passengers to pack light for their flights.

Reviews of the top 5 airlines serving from St. Louis to Europe

 
Need help choosing which airline to fly with from St. Louis to Europe? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8001 reviews
7.9Entertainment
7.9Comfort
8.5Crew
7.3Food
8.1Boarding
Airline reviews

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

2.0 MediocreAnonymous, Nov 2025ATL - TPA
Read more Delta reviews

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

Great. Seamless. Check in agent at kiosk international was amazing and extremely helpful.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Even though we were delayed, we were able to make our connection

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

I had a positive experience on American. I'm blind and traveling with a guide dog and the flight attendants were so kind, friendly, and helpful towards us. They checked in on us during the flight and they made us feel comfortable and welcomed. There was an hour delay before depature, but overall the flight was a smooth ride. I appreciate that there were no issues on this long flight back home.

We were told the flight was delayed 5 times, then it was moved to the next day.

More choices on snacks. Built-in video screen to enjoy entertainment choices.

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

I have a gluten allergy so didn't have any food

Loved the crew . Absolutely no complaints. Except for luggage lost

It was just fine. I managed to make all my connection too sbut had trouble in Munich with no wheel chair and trouble trying to get help from the airport people to get to the other terminal for my flight. Finally a wonderful lady Amelia, helped me to make my flight connection Timon with zero time to spare.

Over 40 years ago my AC return flight was canceled, during this last summer the same thing happened. AC denied everything Canadian like paying for accommodations and basic necessities. So why would I ever want to fly AC again? This last flight my wife took the return flight had problems and left late, so I guess they are getting better. However I have no faith in this airline so I drove to this last destination! I'll never fly AC again!!!

Great check in process in LA and good service The check in process as well as at the gate is way better in the US versus canada 🇨🇦

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

I would like to get my money back. I flight was 4 hours late on the way to detroit, And same on my way back to Brussels they cancelled my flight and give me an other ticket and i had to wait 5 hours.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

My seat was one of those that couldn't recline, but the problem was that it was abnormally upright, so the headrest actually made the seat concave, which was uncomfortable and hard on my lower back. I had to ball my jacket up and use it as lumbar support. goodness I had it with me.

Boarding was so so after zone 3 was called all other zones went in

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

We were moved twice on flights to the point we weren’t even on Lufthansa anymore. We had to fly united. Lost paid extra leg room twice. To top it all off we’re forced to pay $375 and $275, respectively for you luggage that was considered sports luggage. We were told it would be Lufthansa fares l, from the united desk, AND WE DIDN'T EVEN HAVE A LUFTHANSA FLIGHT! I’ll be calling once my trip is over on October 7th to all airlines and Kayak. This was ridiculous!

Everything you need to know for your flight to Europe

Information on your arrival and departure airports