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Find cheap flights from St. Louis to Europe from $236

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 9/4. 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
0 bags
Sun 6/9
Sun 6/16

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Best Europe Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

London
London1 stop$488
Paris
Paris2 stops$588
Rome
Rome2 stops$661
Madrid
Madrid1 stop$835
Athens
Athens2 stops$1,127
Lisbon
Lisbon2 stops$867
Istanbul
Istanbul2 stops$929
Dublin
Dublin2 stops$962
Amsterdam
Amsterdam2 stops$695
Milan
Milan2 stops$712
Zurich
Zurich2 stops$695
Munich
Munich1 stop$726
Copenhagen
Copenhagen1 stop$592
Berlin
Berlin2 stops$912
Edinburgh
Edinburgh2 stops$630
Vienna
Vienna2 stops$774

Good to know

Low season

February

High season

September

Cheapest flight

$236
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 3% 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 to Europe from St. Louis 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 to Europe with an airline and back to St. Louis 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 to Europe from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

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 $789 one-way - $1,174 round-trip
  • Morning departure is around 14% more expensive than an evening flight, on average*.
  • 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.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

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.
8.0
DeltaOverall score based on 10768 reviews
7.9Comfort
8.6Crew
8.0Entertainment
8.2Boarding
7.4Food
Airline reviews

Boarding was chaotic. I didn’t finish dinner because I went to bed early. Breakfast omelet was overcooked and tasteless but croissant was better than usual. Plane was dirty—crumbs in every seam and lavatory was poorly maintained (paint peeling, etc.) and toilet paper had not been refreshed before takeoff. No cubby for storage in first and seat was narrow.

4.0 OkayPatricia, May 2024DTW - CDG
Read more about Delta reviews

Boarding was chaotic. I didn’t finish dinner because I went to bed early. Breakfast omelet was overcooked and tasteless but croissant was better than usual. Plane was dirty—crumbs in every seam and lavatory was poorly maintained (paint peeling, etc.) and toilet paper had not been refreshed before takeoff. No cubby for storage in first and seat was narrow.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

West Jet has a horrible boarding process and the seats have no cushion.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Flight was delayed 2.5 hours - a big deal on an overnight when you plan to sleep.

I feel like they have upgraded the app since I last flew United and I found it to be super helpful. I had stopped flying United unless absolutely necessary and my experience on this trip indicates they have been working hard to improve their services.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. Very comfortable business seats with nice bedding. Good food. We were delayed to let late passengers on the flight, but otherwise great experience.

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Everything could be better. The plain was in Orlando for 3 hours prior to boarding. After boarding all the passengers they found out that plane has a mechanical problem. After an hour the problem was solved, the pilot comes on and states, (We have to go back to the gate and take on more fuel!) Are you kidding me???? Who they have for pilots, Boy scouts?? I barely made my connecting flight to Vienna, but my suitcase did not. I'm still waiting for it, in Gyor, Hungary. Am I having fun yet?? Other passenger were in the same binned. I travelled all over the world both for business and pleasure with all types of airlines. By far of all the carriers I travelled with, Discover is the worst. I'm contemplating to bight the bullet and go back to the US with a different carrier. For International flights, the seats are made for little people. The person in front of me had his seat reclined the whole way, I felt like he was sitting in my lap. For closing, I would not let my dog travel with Discover, yet alone recommend it to an other person. Does it sound like I'm frustrated, Think about having to travel back to the US with them. I'm sure I'll not hear back from you, because nobody wants to hear about bad news, but with all the hype Discover puts out there about their services, nothing could be further from the truth. Joseph A. Nagy

Only problem we experienced was not anything to do with Lufthansa. When changing planes in Frankfurt we spent over an hour on passport control line. Lufthansa did a marvelous job on everything from keeping me informed via texts, to terrific cabin crew.

Bordón could be bettet if the company say before boarding the order of the different groups.

Checked in is easy and it was a smooth flight from LAX to Munich

There is no recline on flight from DFW to FRA. Middle eastern airways provide better recline option for the same class. FRA to Bangalore has better recline option. I bid 100$ for premium economy, my request was declined. But staff handled it without issues.

The Lufthansa part was wonderful. The short connection flight was not.

German crew were very kind. Food was okay but can be better, especially bread was not good, Garbage collection was very poor.

Awful Terrible staff poor communication Flight delayed for an hour with no apology or explanation and no help re missing connecting flight. Resulted in a 7 hour layover at Munich waiting for another connecting flight. Only 15 euros refreshment voucher given. Will not fly Lufthansa again

Both flights were late for what appeared to be the airline’s not having the planes ready. Arrived over 6 hours late.

It was a busy flight and all the crew were very helpful and gracious

This flight was cancelled at the last minute. We were rebooked on another flight but a day later. We lost a day of our vacation and paid for a night in a hotel we couldn’t use. The flights we were rebooked on (both American) messed up our seating on both flights-we didn’t get the seats we had paid for. All in all, a terrible experience.

Lost our bags in Heathrow, We didn’t receive bags in Mallorca for 3 days, out of a 7 day cycling vacation. Really inconvenient and disappointing!

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

Not connecting flights. Missed my flight from Dublin to Liverpool because I arrived at Dublin one hour too late. For this mistake, they offered me a flight from Dublin to Manchester. Thats great and all, but I waste time and money to commute to Liverpool. Be sure to check the time of your connecting flights, because they sure don’t when they sell it to you

Excellent! Great flight attendants, good food (in business class, at least), very comfortable. Touchscreen and remote wasn’t great.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

Book cheap flights from St. Louis to Europe

Recent round-trip flight deals

9/17Tue
1 stop
13h 25mSTL-LGW
9/24Tue
1 stop
28h 46mLGW-STL
$488
10/1Tue
1 stop
13h 25mSTL-LGW
10/8Tue
1 stop
28h 46mLGW-STL
$529
11/5Tue
2 stopsAmerican Airlines
16h 22mSTL-CDG
11/19Tue
2 stopsAmerican Airlines
18h 43mCDG-STL
$588
10/30Wed
2 stopsAmerican Airlines
16h 51mSTL-CDG
11/7Thu
2 stopsAmerican Airlines
19h 47mCDG-STL
$589
11/5Tue
2 stopsUnited Airlines
15h 35mSTL-FCO
11/19Tue
2 stopsUnited Airlines
27h 48mFCO-STL
$661
11/5Tue
1 stopDelta
14h 30mSTL-FCO
11/19Tue
1 stopDelta
20h 05mFCO-STL
$663
11/5Tue
1 stopDelta
14h 30mSTL-FCO
11/19Tue
2 stopsDelta
16h 51mFCO-STL
$667
9/21Sat
1 stopUnited Airlines
30h 35mSTL-LHR
10/4Fri
1 stopUnited Airlines
33h 15mLHR-STL
$733
11/1Fri
1 stopLufthansa
11h 35mSTL-CDG
12/1Sun
2 stopsLufthansa
32h 21mCDG-STL
$753
11/1Fri
2 stopsLufthansa
18h 30mSTL-CDG
12/1Sun
2 stopsLufthansa
34h 11mCDG-STL
$796

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Recent one-way flight deals

9/4Wed
1 stop
35h 29mSTL-LGW
$236
9/23Mon
2 stops
39h 15mSTL-AMS
$251
11/5Tue
1 stopDelta
18h 05mSTL-FCO
$480
10/16Wed
2 stopsUnited Airlines
12h 56mSTL-CDG
$527
10/19Sat
1 stopUnited Airlines
32h 46mSTL-CDG
$539
10/16Wed
2 stopsAmerican Airlines
12h 47mSTL-CDG
$561
7/10Wed
2 stopsDelta
17h 05mSTL-LGW
$594
9/20Fri
1 stopLufthansa
13h 15mSTL-LHR
$599
9/14Sat
1 stopAmerican Airlines
30h 29mSTL-CDG
$741
9/18Wed
nonstopLufthansa
8h 55mSTL-FRA
$777

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Last minute flights from St. Louis to Europe

Last minute flight, train and bus deals

5/12Sun
multi-stopAir Canada
13h 30mSTL-LHR
5/31Fri
multi-stopAir Canada
13h 00mLHR-STL
$740
5/12Sun
multi-stopAir Canada
13h 30mSTL-LHR
5/31Fri
multi-stopAir Canada
18h 35mLHR-STL
$746
5/12Sun
multi-stopAir Canada
14h 40mSTL-LHR
5/31Fri
multi-stopAir Canada
18h 35mLHR-STL
$751
5/14Tue
multi-stopLufthansa
16h 30mSTL-LHR
5/30Thu
multi-stopLufthansa
15h 11mLHR-STL
$897
5/14Tue
multi-stopAmerican Airlines
17h 56mSTL-DUB
5/19Sun
multi-stopAmerican Airlines
12h 48mDUB-STL
$1,211
5/14Tue
multi-stopAmerican Airlines
15h 30mSTL-DUB
5/19Sun
multi-stopAmerican Airlines
15h 27mDUB-STL
$1,214
5/12Sun
multi-stopUnited Airlines
21h 33mSTL-LHR
5/19Sun
multi-stopUnited Airlines
15h 49mLHR-STL
$1,223
5/13Mon
multi-stopUnited Airlines
16h 20mSTL-LHR
5/20Mon
multi-stopUnited Airlines
16h 19mLHR-STL
$1,224
5/14Tue
multi-stopLufthansa
16h 45mSTL-DUB
5/19Sun
multi-stopLufthansa
22h 32mDUB-STL
$1,245
5/14Tue
multi-stopDelta
18h 30mSTL-FRA
5/25Sat
multi-stopDelta
12h 56mFRA-STL
$1,716

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