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$341+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BCN
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Round-trip from

$542
(Delta)

One-way from

$341
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$1,411
From Missouri to Barcelona
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One-way flight from Missouri to Barcelona
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Highest demand for flights based on searches. 21% potential increase in price ($272 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/279:00 amSTL - BCN
1 stop16h 00mDelta
Wed 11/1210:15 amBCN - STL
1 stop17h 35mDelta
Deal found 4/30$542
This Finnair deal was found by Cheapflights users on 4/30. 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.
Tue 11/41:06 pmSTL - BCN
1 stop17h 14mMultiple Airlines
Tue 11/1111:00 amBCN - STL
2 stops18h 29mMultiple Airlines
Deal found 4/30$550
This Expedia deal was found by Cheapflights users on 4/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/168:01 pmSTL - BCN
1 stop31h 29mBritish Airways
Mon 9/229:10 pmBCN - STL
2 stops28h 58mBritish Airways
Deal found 4/30$572
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sun 10/2610:30 amSTL - BCN
1 stop20h 35mUnited Airlines
Thu 11/133:05 pmBCN - STL
1 stop12h 59mUnited Airlines
Deal found 4/30$582
This Priceline deal was found by Cheapflights users on 4/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:14 amMCI - BCN
1 stop21h 16mBritish Airways
Fri 9/1910:45 amBCN - MCI
1 stop20h 14mBritish Airways
Deal found 4/30$592
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/208:00 amMCI - BCN
2 stops17h 00mDelta
Fri 11/2810:55 amBCN - MCI
1 stop18h 26mDelta
Deal found 4/30$597
This CheapOair deal was found by Cheapflights users on 4/30. 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.
Sun 9/77:30 amMCI - BCN
2 stops17h 20mAir Canada
Fri 9/191:15 pmBCN - MCI
2 stops33h 41mAir Canada
Deal found 4/30$621
This Air Canada deal was found by Cheapflights users on 4/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/301:30 pmSTL - BCN
1 stop11h 20mAir Canada
Sat 10/181:15 pmBCN - STL
1 stop13h 18mAir Canada
Deal found 4/30$624
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/112:01 pmSTL - BCN
1 stop13h 09mIberia
Fri 9/1910:45 amBCN - STL
1 stop16h 38mIberia
Deal found 4/30$650
This Air Canada deal was found by Cheapflights users on 4/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/77:30 amMCI - BCN
2 stops17h 20mMultiple Airlines
Fri 9/196:50 amBCN - MCI
3 stops21h 52mMultiple Airlines
Deal found 4/30$652
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 9/812:45 pmMCI - BCN
1 stop12h 35mUnited Airlines
Sun 9/1412:10 pmBCN - MCI
2 stops39h 32mUnited Airlines
Deal found 4/30$664
This Lufthansa deal was found by Cheapflights users on 4/30. 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.
Sun 11/23:45 pmSTL - BCN
1 stop14h 25mLufthansa
Sat 11/86:25 pmBCN - STL
1 stop26h 30mLufthansa
Deal found 4/30$819

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 May 1, 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

Mon 10/27

9:00 am-7:00 am

1 stop16h 00m

Barcelona-El Prat

Wed 11/12

10:15 am-8:50 pm

1 stop17h 35m

$542

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 9/16

8:01 pm-10:30 am

1 stop31h 29m

Barcelona-El Prat

Mon 9/22

9:10 pm-7:08 pm

2 stops28h 58m

$572

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 10/26

10:30 am-1:05 pm

1 stop20h 35m

Barcelona-El Prat

Thu 11/13

3:05 pm-9:04 pm

1 stop12h 59m

$582

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Thu 10/9

11:46 am-12:15 pm

1 stop17h 29m

Barcelona-El Prat

Thu 10/30

6:10 pm-8:26 am

1 stop20h 16m

$592

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Sun 9/7

6:14 am-10:30 am

1 stop21h 16m

Barcelona-El Prat

Fri 9/19

10:45 am-11:59 pm

1 stop20h 14m

$592

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Sun 9/7

7:00 am-6:00 am

2 stops16h 00m

Barcelona-El Prat

Fri 9/19

9:00 am-9:04 pm

2 stops19h 04m

$597

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Sun 9/7

7:30 am-7:50 am

2 stops17h 20m

Barcelona-El Prat

Fri 9/19

1:15 pm-3:56 pm

2 stops33h 41m

$621

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 9/30

1:30 pm-7:50 am

1 stop11h 20m

Barcelona-El Prat

Sat 10/18

1:15 pm-7:33 pm

1 stop13h 18m

$624

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Thu 9/11

2:01 pm-10:10 am

1 stop13h 09m

Barcelona-El Prat

Fri 9/19

10:45 am-8:23 pm

1 stop16h 38m

$650

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Sun 9/7

7:30 am-7:50 am

2 stops17h 20m

Barcelona-El Prat

Fri 9/19

6:50 am-9:42 pm

3 stops21h 52m

$652

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 48 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 $1,064). 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 May 1, 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.

Rainfall in Barcelona by month

Plan your trip to Barcelona by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Barcelona ranges from 0.8 - 3.6 inches per month. October is typically the wettest month, when rainfall can reach 3.6 in. July is typically the driest time to visit Barcelona when rainfall is around 0.8 in.

Temperature in Barcelona by month

Plan your trip to Barcelona by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Barcelona, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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 May 1, 2025.
Read through reviews of airlines operating flights from Missouri to Barcelona, such as Delta, KLM and Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.4
Good
643 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 Aer Lingus, with whom users have recently found tickets for as low as $401. However, be on the lookout for offers from British Airways and WestJet, 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 $1,064). 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

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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.
John F Kennedy Intl to Barcelona-El Prat flights
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Kansas City to Barcelona-El Prat flights

Top 8 airlines flying from Missouri to Barcelona

Discover the top 8 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$527Average$958FlexibilityNo cancel feeOn-time76%
KLMCheapest$540Average$751FlexibilityNo cancel feeOn-time75%
DeltaCheapest$557Average$1,073FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$570Average$998FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$603Average$1,043FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$617Average$1,087FlexibilityNo cancel feeOn-time71%
IberiaCheapest$689Average$1,246FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$705Average$1,133FlexibilityNo cancel feeOn-time67%

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