$352 Find Cheap Flights from St. Louis to Spain

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 Spain departing on 7/6. 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

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Best Spain Flight Deals from St. Louis

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Madrid
Madrid1 stop$558
Málaga
Málaga2 stops$795
Valencia
Valencia2 stops$948
Ibiza
Ibiza2 stops$805
Bilbao
Bilbao1 stop$592
Granada
Granada2 stops$715
San Sebastian
San Sebastian2 stops$1,250
Oviedo
Oviedo2 stops$992
Madrid
Madrid1 stop$558
Málaga
Málaga2 stops$795
Valencia
Valencia2 stops$948
Ibiza
Ibiza2 stops$805
Bilbao
Bilbao1 stop$592
Granada
Granada2 stops$715
San Sebastian
San Sebastian2 stops$1,250
Oviedo
Oviedo2 stops$992

Cheap Flights from St. Louis to Spain

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

Wed, Oct 1 - Fri, Oct 10
Air Canada Logo
1:30 pm - 7:50 amSTL-BCN
11h 20m1 stop
Air Canada Logo
12:10 pm - 3:44 pmBCN-STL
34h 34m2 stops
$555Air Canada
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Wed, Dec 3 - Mon, Dec 8
Iberia Logo
12:54 pm - 7:55 amSTL-MAD
12h 01m1 stop
Iberia Logo
1:00 pm - 10:22 pmMAD-STL
16h 22m1 stop
$558Iberia
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Tue, Sep 23 - Tue, Oct 7
United Airlines Logo
6:00 am - 7:50 amSTL-BCN
18h 50m2 stops
United Airlines Logo
12:10 pm - 10:49 amBCN-STL
29h 39m2 stops
$560United Airlines
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Wed, Oct 1 - Fri, Oct 10
United Airlines Logo
9:15 am - 9:20 amSTL-BCN
17h 05m1 stop
United Airlines Logo
12:10 pm - 7:57 pmBCN-STL
14h 47m1 stop
$574United Airlines
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Sun, Oct 5 - Wed, Oct 15
Lufthansa Logo
3:30 pm - 6:25 pmSTL-BIO
19h 55m1 stop
Lufthansa Logo
6:45 am - 1:30 pmBIO-STL
13h 45m1 stop
$592Lufthansa
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Sun, Oct 5 - Wed, Oct 15
Lufthansa Logo
3:30 pm - 1:25 pmSTL-BIO
14h 55m1 stop
Lufthansa Logo
6:45 am - 1:30 pmBIO-STL
13h 45m1 stop
$593Lufthansa
Find Deal
Mon, Sep 29 - Mon, Oct 13
British Airways Logo
1:03 pm - 9:05 amSTL-BCN
13h 02m1 stop
British Airways Logo
10:45 am - 8:23 pmBCN-STL
16h 38m1 stop
$657British Airways
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Thu, Sep 25 - Mon, Oct 6
American Airlines Logo
7:23 am - 10:30 amSTL-BCN
20h 07m1 stop
American Airlines Logo
1:10 pm - 11:09 pmBCN-STL
16h 59m1 stop
$682American Airlines
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Sat, Sep 20 - Sat, Sep 27
American Airlines Logo
2:01 pm - 10:30 amSTL-BCN
13h 29m1 stop
American Airlines Logo
3:40 pm - 11:59 pmBCN-STL
15h 19m1 stop
$707American Airlines
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Sun, Sep 14 - Sat, Sep 20
British Airways Logo
3:57 pm - 7:30 pmSTL-BCN
20h 33m2 stops
British Airways Logo
8:00 pm - 8:25 pmBCN-STL
31h 25m2 stops
$717British Airways
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KAYAK's insights & trends for St. Louis to Spain flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Spain, 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 Spain is February, when tickets cost $684 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,422 and $1,254 respectively.

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

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 Spain, 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 Spain, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.


Good to know

Low seasonJanuary
High seasonSeptember
Cheapest flight$352
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from St. Louis to Madrid

FAQs - booking Spain flights

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

    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 Spain.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Spain 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 Spain?

    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 Spain 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 Spain?

    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 Spain 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 Spain?

    The cheapest time of day to fly to Spain is generally in the morning, when round-trip flights cost $905 on average. Morning departures are around 13% cheaper than evening flights, on average. The most expensive time of day to fly to Spain is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,043.

Top 5 airlines serving from St. Louis to Spain

 
Need help choosing which airline to fly with from St. Louis to Spain? 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 8798 reviews
8.1Crew
6.6Food
7.0Entertainment
7.7Boarding
7.3Comfort
Airline reviews

United airlines, mediocre at best. No issues , nothing great . Worked for me

4.0 OkayAnonymous, Jun 2025CLT - IAD
Read more United Airlines reviews

United airlines, mediocre at best. No issues , nothing great . Worked for me

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Terrible. Out flight was delayed for 21 (twenty one) hours. United is a joke.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

The food was the worst I’ve had on any flight I’ve ever been on.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

Food was terrible, all served at once, poor quality . Wine and bread offered only once.

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

Cramped seats. FAA should make airlines have more legroom, for even short people complain

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Flight was delayed but the real issue is how long we sat after boarding. Space very limited for an overnight flight and seatbacks didn’t recline so it was almost impossible to sleep.

The staff made sure I was comfortable, moved me to a better seat with more leg room

Easy boarding and comfortable seating were plusses. Enjoyed the experience and good service from the captain and crew. Many thanks...!

Somehow, my booking was under my preferred name instead of my legal name so they almost didn’t let me board the plane at LAX. This problem should have been notified to me when I was still in Toronto.

Staff was very attentive! Food was good for premium economy airplane food. Clearly an older plane - seat back had to be pulled up manually after being reclined.

Great overall. Quick boarding, attentive staff - great experience in premium class.

When arriving over 2 hours early to check k in at Charlotte airport I was told I would have to check my carry on ? Apparently the flight was full and may not be room. I was not given a choice and the agent was quite unpleasant about it. I am a senior amd was not comfortable me having to worry about my bag being lost vut it didn’t seem to bother him. There were lots and lots of people of all ages in line when we boarded with carryons and most larger than mine .the rest of my journey was pleasant vut this was totally unacceptable.

The layover was 6 PLUS hours and we were only given a $15.00 voucher. We missed our first activity in Quebec due to the delay.

Miserable staff as it was a late/delayed flight and crew wasn’t in the best spirits. Completely understood as neither was most of the passengers. Still unacceptable l.

Or the greatest and it ended up picking us up from Chicago to Toronto not sure who was tesponsible for the 4 hr delay. United should have been properly prepared for a scheduled flight from Austin to Chicago and they were not.

Not having to check carry on bags when plane wasn’t full. (The told us it was)

Service and food were excellent, could have been more info in English.

I was in business class for the 8 hour flight where: 1. The WiFi did not work 2. The entertainment system did not work 3. We were told there were no hot drinks for the entire flight

I had an issue with the name on my ticket vs my passport name. I was very upset that the Iberia ticket clerk had no authorization to help me and I was left to fix it. It took 19 calls of persons promising to accomplish and not doing anything before I reached someone who helped me in 10 minutes. Two of them even hung up on me. I missed my original flight because of this. Terrible customer service.

Flight boarded three hours late for no reason other than someone made a huge error in crew scheduling. We missed our connecting flight in Madrid and got zero help from American or Iberian airlines on rebooking. We had to pay for a car to take us to the Madrid train station and pay for train tickets to Santiago. We never used our booked flight to Santiago. American claims I can submit the expenses but they are not obligated to cover them. Very frustrating.

Flight delayed Service could be better Iberia staff are not really friendly

They cancelled the flight)(they said bad weather but many other flights took off) and made us wait 5 hours in line to figure out what to do. We ended up making a new flight the next day on another airlines...I hope they honor giving us our money back

Flight from Costa Rica to Madrid was excellent. Good food and service. The flight from Madrid to Brussels was very poor . No food , no entertainment, no usb … Total package was quite expensive so you should give same service on the second flight

We travelled with Level, which is a subsidiary of Iberia. They mixed up all our seats, downgraded few from premium economy fo economy. The crew were not professional, they seem to be in a rush! Also some with an attitude

business class food was pretty average otherwise it was a good experience

The payment system was not working so was unable to connect wifi the entire flight

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

I ordered short ribs for main course. It tasted sweet, really sweet. Horrible.

Our luggage didn’t arrive with us, that puts a damper on the whole trip.

The screen didn’t work and I didn’t get the seat upgrade I paid $300 for. They were no help with that,

Paid $180 for seat selection, and selection essnt honored. Have to call for a refund.

Was 3 hrs delayed and my poor friend I met in Barcelona was waiting at airport for 3 hrs. Dallas airport was awful

The internet was horrible. Plus they charged me $25 for service that didn't work which should have been free since I'm Concierge Key. The flight attendant Rick Young was excellent. Greeted me by name and very attentive.

Not good. First time flying AA in years and won’t be doing so again. We departed late and missed our connecting flight to Barcelona. As a result we missed the first two days of a Mediterranean cruise. No reason given for the delay. Got rerouted from JFK to Heathrow and then to Barcelona. Flight to Heathrow was delayed causing us to miss the flight to Barcelona again. Routed then to Palmero where we had to purchase transportation and a 2 night hotel stay to pick up the cruise there. Probably cost us $2k plus.

As I said Al & AJ were absolutely the best and wow they should be recognized for their amazing service!

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