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Cheap Flights from St Louis to Barcelona

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      Travellers and cabin class, 1 Adult, Economy

      Compare St Louis to Barcelona flight deals

      Find the cheapest month or even day of the year to fly to Barcelona

      Book the best Barcelona fare with no extra fees

      Flight deals from St Louis to Barcelona

      Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Barcelona Airport? If you want to travel next month, return fares start from R 11,545. Find the lowest prices on one-way and return tickets right here.
      Barcelona.R 4,107 per passenger.Departing Fri, 2 Oct.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from St Louis on Fri, 2 Oct, arriving in Barcelona.Price includes taxes and charges.From R 4,107, select.
      Barcelona.R 4,235 per passenger.Departing Wed, 30 Sep.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from St Louis on Wed, 30 Sep, arriving in Barcelona.Price includes taxes and charges.From R 4,235, select.
      Barcelona.R 5,205 per passenger.Departing Tue, 1 Dec.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from St Louis on Tue, 1 Dec, arriving in Barcelona.Price includes taxes and charges.From R 5,205, select.
      Barcelona.R 5,698 per passenger.Departing Wed, 28 Jul.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from St Louis on Wed, 28 Jul, arriving in Barcelona.Price includes taxes and charges.From R 5,698, select.
      Barcelona.R 5,757 per passenger.Departing Mon, 19 Apr.One-way flight with Iberia.Outbound indirect flight with Iberia, departs from St Louis on Mon, 19 Apr, arriving in Barcelona.Price includes taxes and charges.From R 5,757, select.
      Barcelona.R 5,782 per passenger.Departing Wed, 10 Feb.One-way flight with Air France.Outbound indirect flight with Air France, departs from St Louis on Wed, 10 Feb, arriving in Barcelona.Price includes taxes and charges.From R 5,782, select.
      Barcelona.R 5,804 per passenger.Departing Wed, 17 Mar.One-way flight with Iberia.Outbound indirect flight with Iberia, departs from St Louis on Wed, 17 Mar, arriving in Barcelona.Price includes taxes and charges.From R 5,804, select.
      Barcelona.R 6,570 per passenger.Departing Fri, 1 Jan.One-way flight with Air France.Outbound indirect flight with Air France, departs from St Louis on Fri, 1 Jan, arriving in Barcelona.Price includes taxes and charges.From R 6,570, select.
      Barcelona.R 8,183 per passenger.Departing Fri, 21 May.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from St Louis on Fri, 21 May, arriving in Barcelona.Price includes taxes and charges.From R 8,183, select.
      Barcelona.R 10,180 per passenger.Departing Tue, 1 Jun.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from St Louis on Tue, 1 Jun, arriving in Barcelona.Price includes taxes and charges.From R 10,180, select.

      Find the cheapest month to fly from St Louis to Barcelona

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Barcelona flights are currently cheapest in October.
      Sep
      from R 4,235
      Oct
      from R 4,107
      Nov
      Find prices
      Dec
      from R 5,205
      Jan
      from R 6,570
      Feb
      from R 5,782
      Mar
      from R 5,804
      Apr
      from R 5,757
      May
      from R 8,183
      Jun
      from R 10,180
      Jul
      from R 5,698
      Aug
      Find prices

      St Louis to Barcelona: Alternative routes

      Compare routes from St Louis to Barcelona below. You may find an airport to fly into that's cheaper, faster, or easier than Barcelona.

      Barcelona

      12km from central Barcelona
      ClosestCheapest
      from R 4,107
      Search flights

      Girona

      76km from central Barcelona
      Search flights

      Reus

      88km from central Barcelona
      Search flights

      St Louis to Barcelona: Flight information

      The things to know before you go.
      Cheapest flight foundR 4,107
      Cheapest month to flyOctober

      Finding cheap flights from St Louis to Barcelona: Frequently asked questions

      The best price we found for a return flight from St Louis to Barcelona is R 11,221. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from St Louis to Barcelona. But we found flights with one or more stops from R 11,221.
      As of September 2026, there are no flights flying from St Louis to Barcelona.
      The cheapest month to fly from St Louis to Barcelona is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Barcelona Airport on Monday, 28 September 2026.
      No airlines currently offer direct flights between St Louis Airport and Barcelona Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Barcelona but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Barcelona is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Air Canada offers the cheapest flight tickets to Barcelona.

      Travelling from St Louis Airport (STL) to Barcelona Airport (BCN): what you need to know

      • Barcelona is seven hours ahead of St Louis and observes the UTC+1 timezone.

      • To ensure you catch your STL to BCN flight, leave enough time to navigate the airport and find your gate. Turning up two hours ahead of international departures and an hour before domestic flights is the standard rule.

      • Travelling during a peak month such as July? School holidays and other high seasons can mean longer lines and delays at security. Play it safe and get there up to four hours ahead of international flights and two hours before a domestic departure.

      • If you want to break up your flight, just uncheck 'Direct flights only' when searching for your ticket from St Louis Airport to Barcelona Airport. These are the top stopovers between STL and BCN:

        • Chicago O'Hare International Airport

        • Toronto Pearson International Airport

        • Washington Dulles Airport

      How to find the cheapest flights from St Louis Airport (STL) to Barcelona Airport (BCN)

      • The lowest price we've seen for a one-way St Louis Airport to Barcelona Airport flight is R 4,107. A round-trip ticket right now is R 11,221. Depending on the availability and when you book, these fares could change.

      • To get your hands on cheap tickets from STL to BCN, book early. Airlines usually offer the most competitive fares when flights are first made available.

      • If you're flexible with your travel dates, use the 'Whole month' search function. It'll show you the lowest price in each month when searching for a flight from St Louis Airport to Barcelona Airport.

      • Spend less time searching for cheap flights from STL to BCN by creating a Price Alert. You'll receive an email or notification through the app when a special offer becomes available.

      • Find the perfect flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from St Louis Airport to Barcelona Airport, use the 'Sort by' function. You can also filter by airline, departure and arrival times, and number of stops.

      Handy information about St Louis Airport (STL)

      Arriving at Barcelona Airport (BCN)

      Getting from Barcelona Airport (BCN) to central Barcelona

      • Barcelona Airport is approximately 13 kilometres from the centre of Barcelona. Driving there takes about 25 minutes.

      • When travelling by public transport, expect a journey time of roughly 30 minutes.

      When to fly to Barcelona Airport (BCN)

      • July is the most popular month for flights from St Louis Airport to Barcelona Airport. To steer clear of the crowds, go to Barcelona in March.

      • The warmest month in Barcelona is August, with the temperature ranging between 20ºC (68ºF) and 31ºC (88ºF). Lock in your flights from St Louis Airport to Barcelona Airport in this month if this is the type of weather you enjoy.

      • If you like cooler conditions, look for a cheap ticket from STL to BCN in January. Average temperatures are between 5ºC (41ºF) and 14ºC (57ºF) then.

      Explore more of Spain

      • Zaragoza is just one of the many places in Spain waiting to be explored after you've seen Barcelona. Around 257 kilometres away to the west, check out popular attractions including Plaza del Pilar, La Seo del Salvador and Basílica de Nuestra Senora del Pilar.

      • Around 402 kilometres west of Barcelona, Logroño is another favourite stop in Spain. Experience this destination's highlights firsthand at Bodegas Faustino, Bodegas Campo Viejo and Bodegas Valoria.

      Plan the rest of your trip from St Louis to Barcelona

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.