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$281+ Cheap flights from Missouri to Barcelona

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BCN
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Missouri to Barcelona

Keep the following information in mind while searching for Missouri to Barcelona flight deals. Data was last updated July 3, 2025.

Round-trip from

$555
(CheapOair)

One-way from

$281
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,322
From Missouri to Barcelona
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One-way flight from Missouri to Barcelona
Search Deals
Highest demand for flights based on searches. 31% potential increase in price ($437 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Missouri to Barcelona

Cheapest flights from Missouri to Barcelona
Explore the most affordable flight options available from Missouri to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This CheapOair deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/11:30 pmSTL - BCN
1 stop11h 20mAir Canada
Fri 10/1012:10 pmBCN - STL
2 stops34h 34mAir Canada
Deal found 7/2$555
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/11:30 pmSTL - BCN
1 stop11h 20mUnited Airlines
Fri 10/1012:10 pmBCN - STL
1 stop14h 47mUnited Airlines
Deal found 7/3$568
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:00 amSTL - BCN
1 stop20h 05mAmerican Airlines
Fri 10/103:40 pmBCN - STL
1 stop15h 16mAmerican Airlines
Deal found 7/1$583
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2611:36 amMCI - BCN
1 stop18h 29mUnited Airlines
Wed 12/310:30 amBCN - MCI
1 stop16h 23mUnited Airlines
Deal found 7/2$583
This Finnair deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/192:40 pmSTL - BCN
2 stops15h 40mMultiple Airlines
Wed 11/2611:00 amBCN - STL
2 stops19h 37mMultiple Airlines
Deal found 7/1$590
This Iberia deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/162:49 pmSTL - BCN
1 stop11h 11mIberia
Tue 11/259:15 amBCN - STL
2 stops17h 45mIberia
Deal found 7/1$593
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/253:19 pmSGF - BCN
2 stops35h 16mUnited Airlines
Fri 11/77:45 amBCN - SGF
2 stops20h 06mUnited Airlines
Deal found 7/2$603
This lastminute.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/36:27 pmMCI - BCN
2 stops30h 23mMultiple Airlines
Tue 8/192:55 pmBCN - MCI
2 stops36h 47mMultiple Airlines
Deal found 7/3$610
This Iberia deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/31:31 pmMCI - BCN
1 stop12h 34mIberia
Tue 8/192:00 pmBCN - MCI
1 stop14h 58mIberia
Deal found 7/1$631
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/210:46 amMCI - BCN
1 stop16h 24mAmerican Airlines
Tue 10/71:10 pmBCN - MCI
1 stop16h 49mAmerican Airlines
Deal found 7/1$633
This Lufthansa deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/123:50 pmSTL - BCN
1 stop18h 50mLufthansa
Sun 11/165:50 amBCN - STL
1 stop15h 05mLufthansa
Deal found 7/1$654
This FlightHub deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/167:30 amMCI - BCN
2 stops17h 20mAir Canada
Mon 10/2712:35 pmBCN - MCI
2 stops31h 46mAir Canada
Deal found 7/2$660

Cheapflights Fare Finder

Customize your flight search to find flights from Missouri to Barcelona that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from Missouri to Barcelona that are best for you.

Fly from

Missouri

Fly to

Barcelona

Route

Depart

Return

Price

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 10/1

1:30 pm-7:50 am

1 stop11h 20m

Barcelona-El Prat

Fri 10/10

12:10 pm-3:44 pm

2 stops34h 34m

$555

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 10/1

1:30 pm-7:50 am

1 stop11h 20m

Barcelona-El Prat

Fri 10/10

12:10 pm-7:57 pm

1 stop14h 47m

$568

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 10/1

6:00 am-9:05 am

1 stop20h 05m

Barcelona-El Prat

Fri 10/10

3:40 pm-11:56 pm

1 stop15h 16m

$583

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Wed 11/26

6:00 am-9:35 am

2 stops20h 35m

Barcelona-El Prat

Wed 12/3

10:30 am-7:53 pm

1 stop16h 23m

$583

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 11/19

2:40 pm-1:20 pm

2 stops15h 40m

Barcelona-El Prat

Wed 11/26

11:00 am-11:37 pm

2 stops19h 37m

$590

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 11/16

2:49 pm-9:00 am

1 stop11h 11m

Barcelona-El Prat

Tue 11/25

9:15 am-8:00 pm

2 stops17h 45m

$593

SpringfieldBarcelona

SGF - BCN

SGFBCN

Springfield-Branson

Sat 10/25

3:19 pm-9:35 am

2 stops35h 16m

Barcelona-El Prat

Fri 11/7

7:45 am-8:51 pm

2 stops20h 06m

$603

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Sun 8/3

6:27 pm-7:50 am

2 stops30h 23m

Barcelona-El Prat

Tue 8/19

2:55 pm-8:42 pm

2 stops36h 47m

$610

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Sun 8/3

1:31 pm-9:05 am

1 stop12h 34m

Barcelona-El Prat

Tue 8/19

2:00 pm-9:58 pm

1 stop14h 58m

$631

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Thu 10/2

10:46 am-10:10 am

1 stop16h 24m

Barcelona-El Prat

Tue 10/7

1:10 pm-10:59 pm

1 stop16h 49m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 37 results
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Best time to book a flight from Missouri to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Barcelona

What is the cheapest month to book a flight from Missouri to Barcelona?

Currently, January is the cheapest month in which you can book a flight from Missouri to Barcelona (average of $523). Flying from Missouri to Barcelona in June is currently the most expensive (average of $1,059). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MO to BCN?

Find hourly flight availability from Missouri to Barcelona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

When flying from Missouri 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.

How much does it cost to fly round-trip from Missouri to Barcelona?

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona. Reviews last updated July 3, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Air France from Missouri to Barcelona to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.3
Good
1,416 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Missouri to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Missouri to Barcelona one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $468. However, be on the lookout for offers from Air Canada and British Airways, as they are both options that can get you from Missouri to Barcelona for a low price.

  • What are the most popular routes from Missouri to Barcelona?

    Most travelers choose Lambert-St Louis - Barcelona-El Prat, Kansas City - Barcelona-El Prat or Springfield-Branson - Barcelona-El Prat when deciding on the best route from Missouri to Barcelona.

  • Can I find deals for flights from Missouri to Barcelona that include hotel bookings?

    Yes. In addition to deals on Missouri to Barcelona flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Barcelona?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Barcelona.

  • Can I find deals for business class flights from Missouri to Barcelona?

    Yes. Cheapflights offers flight deals from Missouri to Barcelona by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to Barcelona?

    Currently, January is the cheapest month in which you can book a flight from Missouri to Barcelona (average of $523). Flying from Missouri to Barcelona in June is currently the most expensive (average of $1,059). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Missouri to Barcelona

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Missouri to Barcelona

Discover the top 9 airlines that operate flights from Missouri to Barcelona. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$468Average$774FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$527Average$1,005FlexibilityNo cancel feeOn-time76%
DeltaCheapest$533Average$1,022FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$577Average$1,032FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$580Average$902FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$629Average$1,242FlexibilityNo cancel feeOn-time67%
IberiaCheapest$631Average$1,227FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$635Average$1,137FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$657Average$843FlexibilityNo cancel feeOn-time77%

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