STL - BCN

$368 Find Cheap Flights from St. Louis to Barcelona

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 Barcelona departing on 7/19. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Barcelona-El Prat Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Barcelona.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Barcelona.
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Everything you should know

Cheapest round-trip
$605
Typical prices: $634-$933
KLM
Tue 4/14Wed 4/29
STL - BCN • 2 stops
Cheapest one-way
$365
Typical prices: $527-$1,037
Multiple Airlines
Sun 7/19
STL - BCN • 1 stop
Top airlines
Virgin Atlantic
Cheapest • from $638 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Barcelona. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Dallas (DFW)
Cheapest • Avg $861 (round-trip)
Montreal (YUL)
Shortest trip • 11h 34m (one-way)
Insights
Insights
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 41% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Barcelona!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Barcelona (STL-BCN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Barcelona 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 Barcelona

Tue, Apr 14 - Wed, Apr 29
KLM Logo
5:59 pm - 4:25 pm
STL
-
BCN
15h 26m
2 stops
KLM Logo
6:20 am - 4:42 pm
BCN
-
STL
17h 22m
2 stops
$605KLM
Tue, Apr 14 - Wed, Apr 29
KLM Logo
5:59 pm - 4:25 pm
STL
-
BCN
15h 26m
2 stops
KLM Logo
11:00 am - 3:32 pm
BCN
-
STL
35h 32m
1 stop
$623KLM
Tue, Apr 14 - Wed, Apr 29
Multiple Airlines Logo
5:49 pm - 12:10 pm
STL
-
BCN
11h 21m
1 stop
Multiple Airlines Logo
10:30 am - 10:17 pm
BCN
-
STL
18h 47m
1 stop
$631Multiple Airlines
Tue, Apr 21 - Tue, Apr 28
United Airlines Logo
9:10 am - 9:00 am
STL
-
BCN
16h 50m
2 stops
United Airlines Logo
12:15 pm - 9:13 pm
BCN
-
STL
39h 58m
2 stops
$638United Airlines
Sun, Apr 19 - Thu, Apr 30
United Airlines Logo
6:30 am - 1:15 pm
STL
-
BCN
23h 45m
1 stop
United Airlines Logo
1:15 pm - 12:06 pm
BCN
-
STL
29h 51m
1 stop
$639United Airlines
Tue, Apr 21 - Wed, Apr 29
British Airways Logo
9:35 pm - 6:40 pm
STL
-
BCN
14h 05m
1 stop
British Airways Logo
10:30 am - 10:17 pm
BCN
-
STL
18h 47m
1 stop
$641British Airways
Tue, Apr 21 - Wed, Apr 29
United Airlines Logo
10:00 am - 9:00 am
STL
-
BCN
16h 00m
2 stops
United Airlines Logo
1:15 pm - 10:45 pm
BCN
-
STL
40h 30m
2 stops
$643United Airlines
Tue, Apr 21 - Tue, Apr 28
British Airways Logo
9:35 pm - 10:40 pm
STL
-
BCN
18h 05m
1 stop
British Airways Logo
9:30 pm - 7:30 pm
BCN
-
STL
29h 00m
1 stop
$647British Airways
Wed, Apr 8 - Tue, Apr 14
British Airways Logo
8:54 am - 10:35 am
STL
-
BCN
18h 41m
1 stop
British Airways Logo
10:30 am - 4:41 pm
BCN
-
STL
13h 11m
1 stop
$648British Airways
Wed, Apr 8 - Wed, Apr 15
Iberia Logo
8:03 pm - 9:25 am
STL
-
BCN
30h 22m
2 stops
Iberia Logo
10:30 am - 10:17 pm
BCN
-
STL
18h 47m
1 stop
$650Iberia
Booking Insights

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

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

How much is a round-trip flight from St. Louis to Barcelona-El Prat Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Barcelona-El Prat Airport departing in April.

What is the cheapest month to fly from St. Louis to Barcelona-El Prat Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Barcelona-El Prat Airport, 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 Barcelona-El Prat Airport is January, where tickets cost $505 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,273 and $1,242 respectively.

How far in advance should I book a flight from St. Louis to Barcelona-El Prat Airport?

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 Barcelona-El Prat Airport, 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 Barcelona-El Prat Airport, you should book around 5 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$365
Best time to beat the crowds with an average 41% drop in price.
Most popular time to fly and prices are also 22% lower on average.
Flight from St. Louis to Barcelona

When to book flights from St. Louis to Barcelona

Are your dates flexible? Find out the best times to travel from St. Louis to Barcelona based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking St. Louis to Barcelona flights

  • What is the carry-on policy on Lufthansa Airlines?

    If you are traveling in Economy, you are allowed one carry-on bag and one personal item. With a Business or First Class ticket, you can bring two bags onboard. The personal item should not be bigger than 11.8 × 15.7 × 3.9 inches in size, while the bags must not exceed 21.6 × 15.7 × 9 inches in dimensions.

  • Is Delta an eco-friendly airline?

    Delta is one of the most sustainable airlines in the aviation world. In attempts to minimize the impact of their services on the environment, it has invested in a modern fuel-efficient fleet, sustainable aviation fuel (SAF) development, and efficient waste management and recycling programs. Additionally, it has partnered with several environmental groups.

  • What is the easiest way to travel from Barcelona El Prat Airport (BCN) using public transport?

    Taking a bus from the airport is the easiest way to get to the city center if you don’t have a car. There are three available bus transits from the airport: Aerobus, bus number 46, and the night bus N16, N17, or N18. The buses can be found in Terminal 1 and Terminal 2.

  • Can I rent a car at Barcelona El Prat Airport (BCN)?

    At BCN, you can rent a car of your choice with ease. This is because in both of its Terminals, there are counters for Avis, Budget, Enterprise, InterRent, Hertz, Thrifty, Sixt, Firefly, and Goldcar. The pickup lot for the terminals is a short distance from the terminals. Because of the locations of the counters and pickup lot, you won’t need ground transportation to get to either.

  • What is the cheapest flight from St. Louis to Barcelona-El Prat Airport?

    In the last 3 days, the lowest price for a flight from St. Louis to Barcelona-El Prat Airport was $368 for a one-way ticket and $638 for a round-trip.

  • Do I need a passport to fly between St. Louis and Barcelona?

    A passport is required to fly from St. Louis to Barcelona.

  • Which airports will I be using when flying from St. Louis to Barcelona?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Barcelona, also known as Barcelona-El Prat.

  • Which aircraft models fly most regularly from St. Louis to Barcelona?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Barcelona?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Barcelona, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Barcelona, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from St. Louis to Barcelona are Delta and KLM. With an average price for the route of $802 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $782 and an overall rating of 7.8.

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

    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 Barcelona.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Barcelona 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 Barcelona?

    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 Barcelona with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BCN can sometimes prove cheaper using this method.

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

    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 Barcelona from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from St. Louis to Barcelona-El Prat Airport

  • The airlines that serve flights from Lambert St Louis International Airport (STL) to Barcelona El Prat Airport (BCN) have varying layover destinations. Hence, your layover destination will be determined by the airline you travel with. If you travel with American Air Lines, your stopover will be in Philadelphia, and if you choose to fly with Lufthansa, you will lay over in Frankfurt. If you decide to board a two-stop Delta Air Lines flight, your layovers will be in Detroit and Paris.
  • Lambert St Louis International Airport has two passenger terminals: Terminal 1 and Terminal 2. Terminal 1 has five Concourses: A, B, C, D, and E, while Terminal 2 has only one concourse, E. On your STL flight to BCN, you are likely to depart from Terminal 1. With Lufthansa, you will depart from T1, Concourse D; with American Airlines, you depart from T1, Concourse E; and with Delta Air Lines, you will depart from T1, Concourse A.
  • Suppose you want to travel to BCN aboard a Lufthansa airline with an infant. If that is the case, your infant can travel on your lap at a heavily discounted ticket fare. For safety, flight attendants provide the baby with a safety belt before take-off. You are encouraged to reserve a bassinet for your flight 52 hours prior for proper planning. Changing tables and spare diapers are available on board.
  • If you intend to bring a drink on your STL flight to BCN, you should be aware that most airlines only allow it if the liquid is in a 3.4-oz container. The container should be carried in a plastic, transparent, and resealable bag that does not exceed one liter in size.
  • If you are a passenger with limited mobility, you don’t have to worry about struggling in STL. This is because the airport offers wheelchair services upon request, with trained staff members always ready to assist physically challenged passengers at all times. The airport also features ramps, wheelchair accessible washrooms, and accessible parking spots close to the terminals for people with reduced mobility.

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

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Barcelona. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Barcelona? 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.
7.4
United AirlinesOverall score based on 9409 reviews
7.7Boarding
7.3Comfort
8.1Crew
6.6Food
7.1Entertainment
Airline reviews

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

2.0 MediocreMichael, Mar 2026
RSW - IAH
Read more United Airlines reviews

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Complimentary light meal would be appreciated. But great flight crew service on all legs

The crew was excellent and overall the flight was good. No complaints.

I didn't end up taking this flight. I got up at 4am for a flight that was supposed to board at 6am - at 5:55am you delayed the flight to 10am. The airport is under construction so I switched to a later flight as I wasn't going to sit in the airport for 4 hours. They said the delay was due to the crew needing rest from a flight coming in late the night before - if that was the case then I think you should have delayed the flight much sooner so that passengers wouldn't get up so early and get to the airport to sit and wait.

Never had such a lazy first class attendant. Literally spent 60%+ of the flight playing games on her personal phone making up excuses of why she was unavailable.

The flight attendants and the service is getting worse by the day.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Like all of the flights I took to get down to Dallas. They were delayed

Other than nearly three hour delay for maintenance issues, everything went smooth

Plane from partner PSA was filthy. Plastic needs to be thoroughly cleaned. Really disgusting to look at and wonder about cleanliness of parts less visible.

The baggage claim experience was poor. The plane crew and the AA app said that checked baggage in CLT would be at carousel 7 but the sign at Baggage Claim said carousel 1. The carousel 1 sign had the correct flight # listed above the belt. But the luggage never came. I went to an AA baggage claim office after about 1 hour and the clerk directed me to another AA room that was poorly marked, with a closed door and no obvious way to know what to do. Finally someone opened the door and my bag was inside. The clerk was totally unable to explain why.

They are rarely on time! Very hard to plan your travels when flights or connections keep getting delayed.

Departed Palm Springs over an hour late because there’s only one gate, and it has always delayed by the arriving and departing flight to Toronto and the arriving flight from Vancouver.

I checked a bag and there was only one agent to assist all customers with any issues.

I want to thank Carlos at the Miami AC desk - he was amazing and went over and above to help us out. Thank you Carlos and all the best to you!!! You made our faith in AC feel great! Sincerely, David Cubitt

Flight was canceled due to mechanical issues. After a considerable wait in the queue, Air Canada customer service was very helpful to get us on another flight. I am disappointed to report our rescheduled flight is for three days from now. Three days of extra expenses and inconvenience is unacceptable.

Extremely disappointing. My original Denver–Vancouver–Bangkok itinerary was cancelled due to a crewing issue. I was not proactively supported and had to drive back home after already reaching the airport. Communication was poor throughout, and attempts to contact customer service resulted in being on hold for nearly three hours without reaching anyone. Instead of being rebooked on the same direct routing the following day, I was rerouted onto a much longer itinerary via multiple cities and airlines, which resulted in arriving approximately 30 hours later than scheduled. At Denver airport, there was no visible Air Canada representative available to properly assist. Ground staff offered no real support beyond directing passengers to a phone number. There was no clear communication, no ownership, and no meaningful customer care during a major disruption. The final journey involved three flights instead of the original two, significantly increasing travel time and stress. Overall, the handling of the cancellation and lack of customer support was unacceptable. What could have been better? Clear communication during the cancellation Accessible customer service (phone support that actually answers) Proper in-person assistance at the airport Rebooking onto a comparable routing rather than a significantly longer one

Great setup on both flights except the last flight we got condensed dripping all over me in the last 20 mins of the flight

The last 3 hours it was freezing cold in row 56. Multiple people had their winter coats on and were utilizing the blankets provided by the airline. I also did not have easy access to figure out how to book my food allergy and advance for my meals. Most of everything I received was something I couldn't eat. This needs to be made more accessible. Also, I'm 5'10 which is the average height of the American male. I flew from Philadelphia to Toronto and then to Tokyo and the seats were absolutely unbearable. For that long of a flight it is impossible to get comfortable when doing anything. Flights need to have more space and stop prioritizing costs over people.

Was delayed at every point/ connection. Luggages missing for 5days. Had no medications for diabetes and high B/p. when bags where finally delivered on the 30th, the insulin and ozempic were no longer patent, as the ice pack had since dissolved and the authenticity of the med is now questionable, since they must be refrigerated. Please have them refund my bag fees. I should sue them for all the inconveniences caused to me.

The plane was delayed substantially due to a mechanical problem, that being said, the airline was very fair with providing a meal coupon for us. I would rather arrive late on a mechanically sound plane than the alternative. The food served in the plane was just awful, however and I recommend a new catering company.

I waiting for 2 hrs to retrieve my luggage. Didn't get home till 3am.

Awful. They didn't even show concern that her connecting flight( Dallas to Mardrid) was gone/missing. I don't understand how that is even possible. Rudest answer from one of the crew was that American Airlines sold the tickets to somebody else. My daughter was not in the list.

The flight was canceled on a Thursday last minute. I lost thousands of dollars in hotels and car rental

Excellent lie flat seat for premium economy! Great staff. Bad food . Not so great entertainment. My bag didn’t make it either.

Really like the idea experience on this airline I will use again

The pilot was professional and very good. The flight crew, very young and often looked flustered and overwhelmed. The seats were among the most uncomfortable in the air. The boarding somewhat chaotic. The price reasonable. Overall it was an average budget airline experience...although Iberia is not a budget airline. I fear if Iberia doesn't up it's game customers like us will go elsewhere.

Bad weather Excelent pilot Spoke British 😆on time seats small ad expected in a discount airline

It wasn’t great because the third-party from Kayak there was just no information about how to check in with Vueling. And the purchase of the ticket from under pricer just made everything really difficult. I’m unlikely to use Kayak again for these reasons.

It was fine, older plane with limited entertainment, otherwise fine.

the seats were bad and uncomfortable and the food was not tasty.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Worth every penny to upgrade to BC. Treated and felt more like First Class

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

The luggage problem I previously mentioned was actually this flight

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

Everything you need to know for your flight from St. Louis to Barcelona

Information on your arrival and departure airports