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Cheap Flights from St. Louis to Europe

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
London
London1 stop$644
Paris
Paris1 stop$769
Rome
Rome1 stop$684
Madrid
Madrid1 stop$679
Athens
Athens2 stops$769
Istanbul
Istanbul2 stops$825
Lisbon
Lisbon1 stop$689
Dublin
Dublin1 stop$679
Amsterdam
Amsterdam2 stops$771
Milan
Milan2 stops$680
Zurich
Zurich2 stops$725
Copenhagen
Copenhagen1 stop$780
Munich
Munich1 stop$800
Edinburgh
Edinburgh2 stops$868
Prague
Prague2 stops$835
Berlin
Berlin2 stops$856
London
London1 stop$644
Paris
Paris1 stop$769
Rome
Rome1 stop$684
Madrid
Madrid1 stop$679
Athens
Athens2 stops$769
Istanbul
Istanbul2 stops$825
Lisbon
Lisbon1 stop$689
Dublin
Dublin1 stop$679
Amsterdam
Amsterdam2 stops$771
Milan
Milan2 stops$680
Zurich
Zurich2 stops$725
Copenhagen
Copenhagen1 stop$780
Munich
Munich1 stop$800
Edinburgh
Edinburgh2 stops$868
Prague
Prague2 stops$835
Berlin
Berlin2 stops$856
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?

The cheapest ticket to Europe from St. Louis found in the last 5 days was to Frankfurt am Main, at $835 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 5 days was $835.

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 $1,069 on average. The most expensive time of day to fly to Europe is generally at night, which is peak travel time and where the average cost of a ticket is $1,069.

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

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 3 stops layover the cheapest option at $1,045 on average.

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

The cheapest month for flights from St. Louis to Europe is February, when tickets cost $699 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,309 and $1,142 respectively.

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

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

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

To get a below average price on the flight from St. Louis to Europe, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low season

February

Cheapest flight

$313
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from St. Louis to London Gatwick Airport

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.

  • How many flights are there between St. Louis and Europe per day?

    Each day, there are between 1 and 2 nonstop flights that take off from St. Louis and land in Europe, with an average flight time of 8h 27m. The most common departure time is 9:00 pm and most flights take off in the afternoon, while the most flights land at Frankfurt am Main Airport. Each week, there are 9 flights. The most frequent day of departure is Tuesday, when 22% of all weekly flights depart. The fewest flights depart on a Monday.

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 $526 one-way - $1,072 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.
7.8
DeltaOverall score based on 8536 reviews
7.2Food
7.8Comfort
7.8Entertainment
8.5Crew
8.1Boarding
Airline reviews

Your survey needs a N/A option. I didn’t use the entertainment or eat food.

10.0 ExcellentJon, Jul 2026
Read more Delta reviews

Your survey needs a N/A option. I didn’t use the entertainment or eat food.

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

Our flight was delayed by over 4 hours due to a maintenance issue. They announced a new plane was on the way. We were given a $12 food voucher ( airport food is quite expensive You can’t even by a water and a small snack for 12:00. 4 hours later we boarded and landed in Atlanta at 10:20 ish pm. Of course we missed our connection and we were given a hotel voucher and another food voucher ! We didn’t make it home until 11:00 the next day ! Unacceptable

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

On boarding crew at the airport called in the boarding numbers too early meaning before the previous line was completed resulting in later numbers getting to board ahead. Also she asked those who boarded from number 3 to have the tags in their carry-on bags and leave it in the jet bridge. Most of the overhead bins were empty though. This is more work for the ground staff in addition to more inconvenience for passengers waiting to get their carry-ons from the jet bridge.

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

I almost missed my connection in Chicago due to having to wait on a gate to be open I am assuming. Having to run from E terminal to C terminal and I barely made it there before they closed the door. This may not be the actual airline's fault it's crazy how there is so little time between flight especially when they are placed so far apart in the airport.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

Fine not above and beyond as I had a connection that was delayed due to maintenance

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

Older plane. Food was really bad, almost not worth the effort. Huge difference with European based airlines.

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

Overall boarding and debarking is a joke. I dont even bring luggage anymore on trips because you can never allow them to be place then in the overhead bin or you have to pay or you check them which is even worse having to wait for your luggage on the tarmac.

First time flying internationally with AA and probably my last. Not military friendly at all. Didn't allow free checked bag for military family members (dependents) on orders like other airlines. We were charged $100 for baggage weight overage (5 lbs!)even though we had military orders allowing us extra.. Didn’t allow military members to board early. Inefficient and long wait time to board. Seats are smaller and more uncomfortable than other airlines.. no drink service for over 7 hrs of flight! After initial meal was served, the crew never offered a snack or drinks until the breakfast's was served 1 1/2 hrs before landing. Overall expensive and poor experience for the entire flight.

Flight was on time and got us to destination quicker than scheduled.

It is ridiculous that Lufthansa weighs your carry-on bags. It's also ridiculous how strict they are about the 50 pound rule when you're flying overseas for nearly 3 weeks. The reality is, that if you book a business or first class ticket you get a $70 luggage allowance. It's bullshit that it's not about safety. It's not about regulation. It's about money. And that pisses me off. Furthermore, under price, which I assume was the travel consolidator for my ticket sold me some bullshit ticket that did not include to check luggage. What a bunch of nonsense. That's a scam. There shouldn't even be a ticket offered to Europe without checked luggage. I don't know how most people are, but now I'm gonna be very skeptical about using KAYAK again and flying Lufthansa. I think maybe it's best I just booked with the airline directly.

The tv and remote didn’t work. The plug to charge our phone didn’t work.

I have very bad experience with United because Vince two weeks that I did not receive my luggage yet

Perfect airline, super friendly, great service, tasty food. Would fly again.

The flight was delayed more than 1.5 hours. Phone calls to united did not satisfy our need to get to Chicago to met family for fight to europe. I was told the flight was booked thru luftansa and united could not make adjustments. When call luftansa they were unaware of the significant delay on the united flight out of mci. They would not authorize a flight change. We went to the airport, as if we would be flying as scheduled, United checked us in, as if our flight would leave as scheduled. We took our bag to be checked to the baggage drop and the agent their confirmed our flight was significantly delayed. She worked for 30 min to get us on another flight. We ended up flying to Denver then to Munich. The rest of the family that flew to Chicago for our meet up and flight to Europe ended up flying to Munich alone. We meet up in Munich for our last leg to luxembourg. In luxembourg we learned on bag was scheduled on our delayed flight. The flight was canceled and we did not receive the bag in lux. We filed a lost back claim. Now 3 days later we STILL do not have the bag. It is apparently in luxembourg and they maybe tried to deliver, however the names on the door of the air b&b do not match the name on the baggage claim so the French speaking delivery person called no one could understand him so he took the bag and left. My brother, traveling with me under a different reservation , has been without essentials for 3 days. One or all of us has stayed "home" each day waiting on the bag. Today was my turn. Delivery window was 10:30 to 2:30. No attempt to knock or ring bell. After the hang up call, my brother called me and told me to check the door. There was nothing there. No sign of attempted delivery, no delivery man, nothing. Being unable to change clothes and having family members take turns waiting on a bag that never comes has ruined this family vacation. Thanks United/Luftansa

The flight left an hour late and no explanation. Food was basically a few snacks out of bags and tiny cup of soda. Crew was pretty friendly.

The The check in process was terrible on both ends. It was not clear if we should use the United, Lufthansa, or Aragrant number. It took over an hour to check in on the front end – and then at return the Lufthansa online check in failed multiple times and only after two calls to their phone number could we accomplish the task. The link to the Kayak site provided no access for check in. This difficulty and ambiguity on both ends will affect our interest in using Kayak for foreign travel in the future.

You lost my bag then waiting on the phone for 30 mins for customer service just to be directed to call another number

Boarding staff, crew and food needs a lot of improvement!! It was awful Aircraft was old with minimal legspace

A/C temp. was way too cold during the flight.

Flight was extremely delayed and they didn’t feed us for a 4 hour delay

Plane took off 90 mins late, on board entertainment was not working, cabin crew was not frequent.

OK. Needed more information on baggage details with different airlines and airport baggage pickup Also, it appeared they offered free WiFi on their info publications but none did.

Great until k found out they never got my check bags onto the plane.

Boarding from the SFO lounge is a big improvement. Although the first class dining room inside the lounge is becoming very crowded.

we originally had premium economy seats when we booked, but because we were forced to re-book because the first leg of our journey was delayed for several hours, we had to fly economy. Less room, less comfortable.

Our flight from ORD was cancelled and BA rebooked is on a flight that originated before the time that they booked us on it. They did not realize we were already arrived in Chicago. Then American Airlines helped us get checked in to the new flight (the one BA assigned to us) which flight we did take although it was delayed about 2 hours, and our assigned seats that we paid for - on the original flight- were lost we did at least get to sit together. It was not too painful for all the changes and we made it to the UK alright though all in all with all the delays and cancellations the flight took about 20 hours to get us here.

though there was space in the cabin they asked us to check in our trolleys. As a result lots of things arrived damaged in Larnaca. They were fragile. When we asked the attendants why that.....they said talk to the captain!!! Unbelievable!

Boarding ,checking in was easy and quick . Comfort was not good.

Everything you need to know for your flight to Europe

Information on your arrival and departure airports