Cheap Flights from Barcelona to St Louis

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Find the cheapest month or even day of the year to fly to St Louis

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Flight deals from Barcelona to St Louis

Looking for a cheap last-minute deal or the best round-trip flight from Barcelona Airport to St Louis Airport? If you want to travel next month, round-trip fares start from $810. Find the lowest prices on one-way and round-trip tickets right here.

St Louis.$668 per passenger.Departing Mon, Sep 21, returning Mon, Oct 26.Round-trip flight with easyJet and Frontier Airlines.Outbound indirect flight with easyJet, departing from Barcelona on Mon, Sep 21, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departing from St Louis on Mon, Oct 26, arriving in Barcelona.Price includes taxes and charges.From $668, select.

St Louis.$807 per passenger.Departing Sun, Aug 30, returning Sat, Sep 5.Round-trip flight with Vueling Airlines and Air Canada.Outbound indirect flight with Vueling Airlines, departing from Barcelona on Sun, Aug 30, arriving in St Louis.Inbound indirect flight with Air Canada, departing from St Louis on Sat, Sep 5, arriving in Barcelona.Price includes taxes and charges.From $807, select.

St Louis.$808 per passenger.Departing Thu, Aug 27, returning Mon, Aug 31.Round-trip flight with Vueling Airlines and Frontier Airlines.Outbound indirect flight with Vueling Airlines, departing from Barcelona on Thu, Aug 27, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departing from St Louis on Mon, Aug 31, arriving in Barcelona.Price includes taxes and charges.From $808, select.

St Louis.$888 per passenger.Departing Fri, Jul 24, returning Tue, Jul 28.Round-trip flight with Vueling Airlines and Air Canada.Outbound indirect flight with Vueling Airlines, departing from Barcelona on Fri, Jul 24, arriving in St Louis.Inbound indirect flight with Air Canada, departing from St Louis on Tue, Jul 28, arriving in Barcelona.Price includes taxes and charges.From $888, select.

St Louis.$898 per passenger.Departing Tue, Nov 17, returning Mon, Nov 23.Round-trip flight with Vueling Airlines and Air Canada.Outbound indirect flight with Vueling Airlines, departing from Barcelona on Tue, Nov 17, arriving in St Louis.Inbound indirect flight with Air Canada, departing from St Louis on Mon, Nov 23, arriving in Barcelona.Price includes taxes and charges.From $898, select.

St Louis.$907 per passenger.Departing Fri, Apr 16, returning Mon, May 3.Round-trip flight with Lufthansa.Outbound indirect flight with Lufthansa, departing from Barcelona on Fri, Apr 16, arriving in St Louis.Inbound indirect flight with Lufthansa, departing from St Louis on Mon, May 3, arriving in Barcelona.Price includes taxes and charges.From $907, select.

St Louis.$922 per passenger.Departing Thu, Mar 18, returning Thu, Mar 25.Round-trip flight with United.Outbound indirect flight with United, departing from Barcelona on Thu, Mar 18, arriving in St Louis.Inbound indirect flight with United, departing from St Louis on Thu, Mar 25, arriving in Barcelona.Price includes taxes and charges.From $922, select.

St Louis.$951 per passenger.Departing Wed, Aug 19, returning Fri, Dec 11.Round-trip flight with Avianca and Air Canada.Outbound indirect flight with Avianca, departing from Barcelona on Wed, Aug 19, arriving in St Louis.Inbound indirect flight with Air Canada, departing from St Louis on Fri, Dec 11, arriving in Barcelona.Price includes taxes and charges.From $951, select.

St Louis.$1,094 per passenger.Departing Fri, Dec 18, returning Fri, Dec 25.Round-trip flight with United.Outbound indirect flight with United, departing from Barcelona on Fri, Dec 18, arriving in St Louis.Inbound indirect flight with United, departing from St Louis on Fri, Dec 25, arriving in Barcelona.Price includes taxes and charges.From $1,094, select.

Find the cheapest month to fly from Barcelona to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Barcelona to St Louis flights are currently cheapest in August.

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Barcelona to St Louis: Alternative routes

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

St Louis

20km from central St Louis

ClosestCheapest

from $668

Search flights

Belleville

32km from central St Louis

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Barcelona to St Louis: Flight information

The things to know before you go.

Cheapest flight found	$670
Cheapest month to fly	September

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

How much are round-trip flights from Barcelona to St Louis?

The best price we found for a round-trip flight from Barcelona to St Louis is $670. 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.

Which airlines fly direct from Barcelona to St Louis?

Currently, there are no airlines that fly direct from Barcelona to St Louis. But we found flights with one or more stops from $668.

How many flights are there a week from Barcelona to St Louis?

There are no flights flying from Barcelona to St Louis, as of July 2026.

When is the cheapest time to fly from Barcelona to St Louis?

The cheapest month to fly from Barcelona to St Louis is usually September.

Which upcoming date is cheapest to fly from Barcelona Airport to St Louis Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Barcelona Airport to St Louis Airport on Monday, September 21, 2026.

Can I get a direct flight from Barcelona Airport to St Louis Airport?

No airlines currently offer direct flights between Barcelona Airport and St Louis Airport. Most routes have one or more stops.

How can I find the best flight deal to St Louis?

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 St Louis 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.

When is the best time to book flights to St Louis?

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

Which is the cheapest airline to fly with from Barcelona Airport to St Louis?

Currently, easyJet offers the cheapest flight tickets to St Louis.

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

St Louis's timezone is UTC-6, making St Louis seven hours behind Barcelona.
Your BCN to STL flight won't wait if you're late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.
During popular months such as July, it's a good idea to get to the airport earlier. Arrive two hours before domestic departures and four hours ahead of an international flight whenever you're traveling during a peak period in general.
If you'd like to break up your flight, simply deselect 'Direct flights only' when searching for your ticket from Barcelona Airport to St Louis Airport. Here are the top stopovers between BCN and STL:
- Chicago O'Hare International Airport
- Philadelphia International Airport
- Montreal Pierre Elliott Trudeau Airport

Handy information about Barcelona Airport (BCN)

Barcelona Airport has a strong on-time performance, reducing the likelihood of delays. Departures from BCN arrive on schedule 80% of the time.
Barcelona Airport is around 13 kilometers from central Barcelona. If you're ride-sharing, catching a cab or driving from the center, it'll take 25 minutes or so to arrive, depending on the traffic.
The journey when using public transport usually takes 30 minutes.
Get your break off to a hassle-free start by staying near BCN. Whether you've booked an early flight from Barcelona Airport to St Louis Airport or just don't want to be rushed, these hotels are the answer:

Arriving at St Louis Airport (STL)

If you're arriving on a late Barcelona Airport to St Louis Airport flight, few things beat the convenience of being close to the terminal. Grab your luggage from the carousel and then be showered and sleeping shortly after at one of these accommodation options near STL:
Travel at your own pace with a St Louis Airport rental car. Book your wheels from Hertz, Budget or Alamo and venture far and wide through St Louis and beyond.
Reserving your vehicle from St Louis Airport about one week in advance gives you the best shot at securing a great deal.

When to fly to St Louis Airport (STL)

July is the most popular month for flights from Barcelona Airport to St Louis Airport. To steer clear of the crowds, visit St Louis in March.
Lock in your flight from Barcelona Airport to St Louis Airport for July if you'd like to explore St Louis during its warmest month. You can expect temperatures of between 17ºC (63ºF) and 33ºC (91ºF).
Search for cheap tickets from BCN to STL in January if you like cooler conditions. Temperatures are at their lowest then, ranging between -7ºC (19ºF) and 8ºC (46ºF) on average.

Explore more of the United States

You've done St Louis, now it's time to discover other corners of the United States. Travel about 418 kilometers north-east to Chicago to check off its leading attractions. From Millennium Park to Art Institute of Chicago and Willis Tower, you'll have a full itinerary ahead.
If there's time to check out another corner of the United States, consider Indianapolis, roughly 370 kilometers east of St Louis. Lucas Oil Stadium, Eiteljorg Museum and The Children's Museum of Indianapolis are highlights.