Cheap flights from St. Louis (STL) to Barcelona (BCN)

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How to find the cheapest flight from
St. Louis (STL) to Barcelona (BCN)

All the information you need to plan the best STL to BCN flight in 2021: compare St. Louis to Barcelona flight prices with the expected peak season, weather and rainfall in Barcelona.
STL - S37
Price
$673 - $1,475
S37
Temperature
57.2 - 84.2 °F
S37
Precipitation
0.9 - 3.3 inches

Popular in

July

High demand for flights, 29% potential price rise

Cheapest in

February

Best time to find cheap flights, 36% potential price drop

Average price

$1,022

Average for round-trip flights in September 2021

Round-trip from

$673

From Lambert-St Louis to Barcelona

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from St. Louis to Barcelona?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 59 days in advance, which can save you up to 7% on flights from St. Louis to Barcelona compared to booking the week you need them. Waiting 59 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $958. For sooner than that we have options available in the next 3 days from $958.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to Barcelona. Flights to Barcelona from St. Louis in February are about $1,048 on average during February, but can be found for as low as $655.

When is the cheapest time to fly from St. Louis to Barcelona (STL - S37)?

When flying from St. Louis to Barcelona, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap flights from St. Louis to Barcelona in September, October 2021

The best prices found for STL to BCN flights for September, October
14 Oct - 24 Oct
$314pp
STL
Lambert-St Louis
Iberia
 
1 STOP
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
Iberia
   
2 STOPS
STL
Lambert-St Louis
21 Oct - 26 Oct
$473pp
STL
Lambert-St Louis
Air France
 
1 STOP
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
Air France
   
2 STOPS
STL
Lambert-St Louis
15 Oct - 22 Oct
$520pp
STL
Lambert-St Louis
Lufthansa
   
2 STOPS
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
Lufthansa
   
2 STOPS
STL
Lambert-St Louis

Lambert-St Louis to Barcelona 2021 flight deals

Cheap flights to Barcelona from St. Louis found for this year
14 Oct - 24 Oct
$314pp
STL
Lambert-St Louis
Iberia
 
1 STOP
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
Iberia
   
2 STOPS
STL
Lambert-St Louis
21 Oct - 26 Oct
$473pp
STL
Lambert-St Louis
Air France
 
1 STOP
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
Air France
   
2 STOPS
STL
Lambert-St Louis
15 Oct - 22 Oct
$520pp
STL
Lambert-St Louis
Lufthansa
   
2 STOPS
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
Lufthansa
   
2 STOPS
STL
Lambert-St Louis

Last minute flights from St. Louis to Barcelona

Late deals on round-trip flights to Barcelona from St. Louis, departing today and this week
28 Sep - 5 Oct
$825pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
28 Sep - 5 Oct
$884pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
United Airlines
   
2 STOPS
STL
Lambert-St Louis
28 Sep - 5 Oct
$1,115pp
STL
Lambert-St Louis
SAS
   
2 STOPS
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
SAS
   
2 STOPS
STL
Lambert-St Louis

One-way flights to Barcelona from St. Louis

The cheapest one-way flights from St. Louis to Barcelona
3:05 am - 5:10 am
American Airlines
2 Stops
19h 05m
STL - BCN
American Airlines
1:30 pm - 3:00 pm
SAS
2 Stops
42h 30m
STL - BCN
SAS
$838
KAYAK
1:45 pm - 6:20 am
Multiple Airlines
2 Stops
33h 35m
STL - BCN
Multiple Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St. Louis</span> to <span class="emphasized">Barcelona</span> flights.

Flight FAQs

From St. Louis to Barcelona

What airport do you fly from for flights from St. Louis to Barcelona?

If you book a flight to Barcelona from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Barcelona per day from 12 different airlines.

Which airlines flying from Lambert-St Louis to Barcelona have flexible cancellations due to COVID-19?

Some of our airline partners flying from Lambert-St Louis to Barcelona have new flexible policies in place due to COVID-19. American Airlines, Air Canada, and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like American Airlines with this kind of flexibility.

Are flight prices decreasing from St. Louis to Barcelona due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both St. Louis and Barcelona for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from St. Louis to Barcelona for under $400 on Cheapflights?

Yes, there are multiple flights from St. Louis to Barcelona for under $400. The cheapest flight booked recently is on Iberia for just $314, but on average you can expect to pay $530.

Are there last-minute flights available from St. Louis to Barcelona for under $900?

There are currently 8+ open flights from St. Louis to Barcelona within the next 7 days for less than $900.

What are the cheapest airlines flying from St. Louis to Barcelona round-trip?

Cheapflights users have booked flights from St. Louis to Barcelona round-trip from $314. Other airlines that can offer you cheap pricing are Air France, from $473, and Lufthansa, from $520. Iberia is priced at 70% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from St. Louis to Barcelona one-way?

For one-way options, check prices for Iberia. According to our data, you can fly for as low as $455. Users have also found prices from $523 and $718 on Iberia and SAS, respectively.

COVID Restrictions

View COVID Travel Restrictions for Barcelona, Spain

Do I need a COVID test to fly to Barcelona from St. Louis?

Information is based on travel restrictions from Lambert-St Louis to Barcelona

Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter Barcelona.

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 for rt-pcr (naat) and 48 for antigen (quick-test) hours before departing to Barcelona.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Barcelona.

Do I need a test to fly back to St. Louis from Barcelona?

Returning to Lambert-St Louis from Barcelona

COVID-19 testing requirements
Visitors from Barcelona must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Barcelona are not required to quarantine after entering Lambert-St Louis.

Hide COVID Travel Restrictions for Barcelona, Spain

Destination information for Barcelona

Things to know before you go - useful duration and weather info for your trip from St. Louis to Barcelona.
Today's exchange rate
$1 = €0.86
Average temperature for September in Barcelona
78.8 °F
Avg rainfall for September in Barcelona
3.1 ″

Airports servicing St. Louis

Airports servicing Barcelona

Costa Brava (GRO)
Reus (REU)

Top 9 airlines flying from Lambert-St Louis to Barcelona

The chart below displays the airlines Cheapflights users traveling from St. Louis to Barcelona choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Lufthansa
$494 $1,002 No cancel fee 76%
Delta
$498 $1,000 No cancel fee N/A
British Airways
$519 $1,215 No cancel fee 70%
Air Canada
$521 $1,093 No cancel fee 67%
Iberia
$536 $794 No cancel fee 77%
United Airlines
$595 $1,287 No cancel fee 69%
American Airlines
$609 $1,316 No cancel fee 71%
Finnair
$655 $663 No cancel fee 76%
Aer Lingus
$717 $1,235 No cancel fee N/A
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