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$225+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BCN
Jan 2 — Jan 91
Fri 1/2
Fri 1/9
1 adult, Economy
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Cheap 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 December 3, 2025.

This Justfly.com deal was found by Cheapflights users on 12/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/911:50 amSTL - BCN
1 stop14h 10mMultiple Airlines
Thu 12/251:35 pmBCN - STL
2 stops31h 51mMultiple Airlines
Deal found 12/2$411
This United Airlines deal was found by Cheapflights users on 12/2. 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.
Tue 12/98:30 amSTL - BCN
1 stop16h 50mUnited Airlines
Thu 12/251:35 pmBCN - STL
2 stops36h 43mUnited Airlines
Deal found 12/2$414
This Flighttix deal was found by Cheapflights users on 12/1. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:02 pmSTL - BCN
1 stop30h 38mVirgin Atlantic
Wed 12/249:30 amBCN - STL
1 stop13h 58mVirgin Atlantic
Deal found 12/1$422
This oojo deal was found by Cheapflights users on 12/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:59 pmMCI - BCN
2 stops16h 31mBritish Airways
Wed 1/1410:40 amBCN - MCI
1 stop19h 32mBritish Airways
Deal found 12/3$422
This Delta deal was found by Cheapflights users on 12/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:35 pmMCI - BCN
1 stop31h 05mDelta
Fri 1/1610:55 amBCN - MCI
1 stop29h 29mDelta
Deal found 12/3$425
This United Airlines deal was found by Cheapflights users on 12/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/811:25 amSTL - BCN
2 stops14h 35mUnited Airlines
Wed 12/2410:30 amBCN - STL
2 stops19h 13mUnited Airlines
Deal found 12/1$426
This FlightHub deal was found by Cheapflights users on 12/2. 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.
Tue 12/911:50 amSTL - BCN
1 stop14h 10mLufthansa
Thu 12/2511:00 amBCN - STL
1 stop19h 43mLufthansa
Deal found 12/2$430
This Delta deal was found by Cheapflights users on 12/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:00 amSTL - BCN
1 stop19h 40mDelta
Thu 12/2510:55 amBCN - STL
1 stop19h 43mDelta
Deal found 12/2$434
This KLM deal was found by Cheapflights users on 12/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:05 amMCI - BCN
1 stop18h 35mKLM
Wed 1/1410:55 amBCN - MCI
1 stop16h 07mKLM
Deal found 12/1$434
This Booking.com deal was found by Cheapflights users on 12/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:40 pmMCI - BCN
1 stop12h 20mBritish Airways
Tue 12/1612:30 pmBCN - MCI
1 stop15h 55mBritish Airways
Deal found 12/2$449
This Delta deal was found by Cheapflights users on 12/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:05 amMCI - BCN
1 stop18h 35mDelta
Sat 1/1710:15 amBCN - MCI
1 stop31h 58mDelta
Deal found 12/3$450
This Delta deal was found by Cheapflights users on 12/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:35 pmMCI - BCN
1 stop31h 05mDelta
Wed 1/146:00 amBCN - MCI
2 stops20h 19mDelta
Deal found 12/3$452

Find flight deals from Missouri to Barcelona

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

Round-trip from

$396
(Rumbo)

One-way from

$225
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$832
From Missouri to Barcelona
Search Deals
One-way flight from Missouri to Barcelona
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($289 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 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 1/7

6:40 pm-1:05 pm

2 stops35h 25m

Barcelona-El Prat

Wed 1/14

11:00 am-11:59 pm

1 stop19h 59m

$411

SpringfieldBarcelona

SGF - BCN

SGFBCN

Springfield-Branson

Sun 1/18

5:00 pm-5:00 pm

2 stops17h 00m

Barcelona-El Prat

Tue 1/27

10:40 am-7:13 pm

1 stop15h 33m

$422

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Wed 12/31

4:59 pm-6:25 pm

2 stops18h 26m

Barcelona-El Prat

Wed 1/14

10:40 am-9:27 pm

1 stop17h 47m

$422

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Wed 1/14

6:00 am-8:00 am

1 stop19h 00m

Barcelona-El Prat

Tue 1/20

10:15 am-11:04 pm

1 stop19h 49m

$425

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Wed 1/14

6:06 am-9:00 am

1 stop19h 54m

Barcelona-El Prat

Wed 1/21

10:40 am-9:27 pm

1 stop17h 47m

$425

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Tue 12/30

6:35 pm-8:40 am

1 stop31h 05m

Barcelona-El Prat

Thu 1/15

10:15 am-7:19 pm

1 stop16h 04m

$425

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Wed 12/31

12:38 pm-8:40 am

1 stop13h 02m

Barcelona-El Prat

Fri 1/16

10:55 am-11:06 pm

1 stop19h 11m

$425

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Wed 12/31

7:05 am-8:40 am

1 stop18h 35m

Barcelona-El Prat

Thu 1/15

10:15 am-8:02 pm

2 stops16h 47m

$425

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Mon 1/12

6:00 am-8:00 am

1 stop19h 00m

Barcelona-El Prat

Thu 1/22

10:15 am-11:13 am

1 stop31h 58m

$427

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 2/1

11:55 am-8:50 am

1 stop13h 55m

Barcelona-El Prat

Tue 2/17

11:00 am-10:05 pm

1 stop18h 05m

$434

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 45 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 $451). Flying from Missouri to Barcelona in June is currently the most expensive (average of $1,019). 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 December 3, 2025.

One of the essential ways to save on airfare from Missouri to Barcelona is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 28% on airfare.

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

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.

  • How long is the flight from Missouri to Barcelona?

    For as low as $422, Lufthansa can have you in Barcelona from Missouri in 17h. The distance between Missouri and Barcelona is about 4832 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is Lufthansa, with whom users have recently found tickets for as low as $450. However, be on the lookout for offers from United Airlines and American Airlines, 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 $451). Flying from Missouri to Barcelona in June is currently the most expensive (average of $1,019). 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.
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Top 10 airlines flying from Missouri to Barcelona

Discover the top 10 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 December 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$433Average$771FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$483Average$926FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$498Average$1,022FlexibilityNo cancel feeOn-time69%
DeltaCheapest$532Average$917FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$532Average$1,143FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$533Average$752FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$568Average$891FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$582Average$707FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$624Average$1,226FlexibilityNo cancel feeOn-time67%
IberiaCheapest$631Average$1,229FlexibilityNo cancel feeOn-time77%

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