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$255+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BCN
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
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 January 15, 2026.

Round-trip from

$403
(lol.travel)

One-way from

$255
(oojo)

Popular in

June

Cheapest in

January

Average price

$505
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. 25% potential increase in price ($293 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 15, 2026.

This United Airlines deal was found by Cheapflights users on 1/12. 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 4/1511:30 am
MCI
-
BCN
1 stop18h 45m
United Airlines
Fri 4/2412:15 pm
BCN
-
MCI
2 stops38h 30m
United Airlines
Deal found 1/12$415
This oojo deal was found by Cheapflights users on 1/13. 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.
Mon 4/132:29 pm
STL
-
BCN
2 stops18h 56m
British Airways
Mon 4/278:35 pm
BCN
-
STL
1 stop29h 55m
British Airways
Deal found 1/13$417
This United Airlines deal was found by Cheapflights users on 1/14. 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 2/311:29 am
MCI
-
BCN
2 stops14h 31m
United Airlines
Tue 2/101:35 pm
BCN
-
MCI
2 stops27h 57m
United Airlines
Deal found 1/14$419
This oojo deal was found by Cheapflights users on 1/14. 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 4/157:10 am
SGF
-
BCN
2 stops21h 55m
British Airways
Mon 4/209:20 pm
BCN
-
SGF
2 stops27h 17m
British Airways
Deal found 1/14$420
This Mytrip deal was found by Cheapflights users on 1/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/256:30 pm
MCI
-
BCN
2 stops32h 05m
Air Canada
Tue 2/101:35 pm
BCN
-
MCI
2 stops31h 52m
Air Canada
Deal found 1/13$420
This Sembo deal was found by Cheapflights users on 1/13. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/259:57 am
STL
-
BCN
2 stops16h 38m
Air Canada
Tue 2/101:35 pm
BCN
-
STL
2 stops28h 27m
Air Canada
Deal found 1/13$423
This Air Canada deal was found by Cheapflights users on 1/12. 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.
Wed 4/158:00 am
MCI
-
BCN
2 stops17h 00m
Multiple Airlines
Fri 4/241:15 pm
BCN
-
MCI
2 stops28h 12m
Multiple Airlines
Deal found 1/12$423
This British Airways deal was found by Cheapflights users on 1/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2512:01 pm
STL
-
BCN
2 stops17h 29m
British Airways
Tue 2/1010:40 am
BCN
-
STL
1 stop15h 49m
British Airways
Deal found 1/13$425
This lol.travel deal was found by Cheapflights users on 1/13. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2511:55 am
STL
-
BCN
1 stop13h 55m
Finnair
Tue 2/1010:40 am
BCN
-
STL
1 stop15h 49m
Finnair
Deal found 1/13$426
This lol.travel deal was found by Cheapflights users on 1/13. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/251:56 pm
MCI
-
BCN
1 stop11h 54m
Finnair
Tue 2/1010:40 am
BCN
-
MCI
1 stop17h 47m
Finnair
Deal found 1/13$426
This Delta deal was found by Cheapflights users on 1/13. 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 1/201:22 pm
MCI
-
BCN
1 stop12h 18m
Delta
Fri 1/3010:55 am
BCN
-
MCI
1 stop16h 07m
Delta
Deal found 1/13$428
This oojo deal was found by Cheapflights users on 1/14. 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.
Mon 4/1311:05 am
MCI
-
BCN
1 stop13h 30m
British Airways
Mon 4/208:35 pm
BCN
-
MCI
2 stops27h 32m
British Airways
Deal found 1/14$430

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 January 15, 2026.
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

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Wed 4/15

11:30 am-1:15 pm

1 stop18h 45m

Barcelona-El Prat

Fri 4/24

12:15 pm-7:45 pm

2 stops38h 30m

$415

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 4/14

12:11 pm-1:15 pm

2 stops18h 04m

Barcelona-El Prat

Tue 4/28

10:15 am-7:30 pm

1 stop16h 15m

$417

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Tue 2/3

11:29 am-9:00 am

2 stops14h 31m

Barcelona-El Prat

Tue 2/10

1:35 pm-10:32 am

2 stops27h 57m

$419

SpringfieldBarcelona

SGF - BCN

SGFBCN

Springfield-Branson

Wed 4/15

7:10 am-12:05 pm

2 stops21h 55m

Barcelona-El Prat

Mon 4/20

9:20 pm-5:37 pm

2 stops27h 17m

$420

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 1/25

9:57 am-9:35 am

2 stops16h 38m

Barcelona-El Prat

Tue 2/10

1:35 pm-11:02 am

2 stops28h 27m

$423

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 3/18

11:59 am-1:40 pm

2 stops19h 41m

Barcelona-El Prat

Tue 3/24

10:05 am-11:02 pm

2 stops18h 57m

$432

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 3/9

6:33 pm-10:30 pm

2 stops21h 57m

Barcelona-El Prat

Wed 3/18

6:40 am-11:48 pm

2 stops23h 08m

$432

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Mon 4/13

2:38 pm-4:25 pm

2 stops18h 47m

Barcelona-El Prat

Mon 4/20

9:20 pm-5:07 pm

2 stops26h 47m

$432

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 2/18

7:00 am-8:50 am

1 stop18h 50m

Barcelona-El Prat

Mon 2/23

9:00 pm-11:48 pm

2 stops33h 48m

$442

SpringfieldBarcelona

SGF - BCN

SGFBCN

Springfield-Branson

Sat 2/21

12:20 pm-8:50 am

1 stop13h 30m

Barcelona-El Prat

Mon 3/2

8:00 pm-7:16 pm

2 stops30h 16m

$454

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

Showing 1-10 of 38 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 $449). Flying from Missouri to Barcelona in June is currently the most expensive (average of $987). 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.

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 $423, United Airlines can have you in Barcelona from Missouri in 16h 38m. The distance between Missouri and Barcelona is about 4638 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 American Airlines, with whom users have recently found tickets for as low as $350. However, be on the lookout for offers from United Airlines and Lufthansa, 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 $449). Flying from Missouri to Barcelona in June is currently the most expensive (average of $987). 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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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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$433Average$771FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$483Average$936FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$488Average$1,122FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$498Average$1,014FlexibilityNo cancel feeOn-time69%
DeltaCheapest$532Average$923FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$533Average$752FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$568Average$891FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$582Average$707FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$624Average$1,214FlexibilityNo cancel feeOn-time67%
IberiaCheapest$631Average$1,258FlexibilityNo cancel feeOn-time77%

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