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$529+ Cheap flights from Louisville (SDF) to Barcelona

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BCN
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Louisville to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Barcelona (S37). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 30, 2025.

Round-trip from

$529
(Booking.com)

Popular in

June

Cheapest in

February

Average price

$1,011
From Louisville Intl to Barcelona
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($365 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($51 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 Louisville to Barcelona

Cheapest flights from Louisville to Barcelona
Explore the most affordable flight options available from Louisville to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Booking.com deal was found by Cheapflights users on 7/29. 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.
Wed 11/1211:00 amSDF - BCN
2 stops16h 35mAir Canada
Tue 11/181:35 pmBCN - SDF
2 stops38h 54mAir Canada
Deal found 7/29$529
This lol.travel deal was found by Cheapflights users on 7/29. 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.
Wed 11/129:00 amSDF - BCN
1 stop22h 05mUnited Airlines
Tue 11/1810:30 amBCN - SDF
1 stop34h 15mUnited Airlines
Deal found 7/29$536
This Finnair deal was found by Cheapflights users on 7/29. 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 9/231:44 pmSDF - BCN
1 stop16h 31mMultiple Airlines
Tue 9/306:30 pmBCN - SDF
1 stop24h 33mMultiple Airlines
Deal found 7/29$589
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/73:01 pmSDF - BCN
1 stop12h 04mAmerican Airlines
Tue 9/162:00 pmBCN - SDF
1 stop13h 30mAmerican Airlines
Deal found 7/30$638
This Justfly.com deal was found by Cheapflights users on 7/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:25 pmSDF - BCN
1 stop15h 45mBritish Airways
Fri 10/1012:20 pmBCN - SDF
1 stop16h 03mBritish Airways
Deal found 7/30$650
This Iberia deal was found by Cheapflights users on 7/30. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/39:57 amSDF - BCN
2 stops20h 48mIberia
Fri 10/1010:45 amBCN - SDF
1 stop18h 11mIberia
Deal found 7/30$673
This Booking.com deal was found by Cheapflights users on 7/29. 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.
Wed 12/241:55 pmSDF - BCN
2 stops21h 45mLufthansa
Mon 1/51:45 pmBCN - SDF
2 stops38h 29mLufthansa
Deal found 7/29$716
This Delta deal was found by Cheapflights users on 7/29. 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 8/129:45 amSDF - BCN
2 stops14h 15mDelta
Tue 8/1912:20 pmBCN - SDF
2 stops16h 40mDelta
Deal found 7/29$795

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville 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 30, 2025.
Use the filters below to find and compare flights from Louisville to Barcelona that are best for you.

Fly from

Louisville

Fly to

Barcelona

Route

Depart

Return

Price

LouisvilleBarcelona

SDF - BCN

SDFBCN

Louisville Intl

Wed 11/12

11:00 am-9:35 am

2 stops16h 35m

Barcelona-El Prat

Tue 11/18

1:35 pm-10:29 pm

2 stops38h 54m

$529

LouisvilleBarcelona

SDF - BCN

SDFBCN

Louisville Intl

Wed 11/12

9:00 am-1:05 pm

1 stop22h 05m

Barcelona-El Prat

Tue 11/18

10:30 am-2:45 pm

1 stop34h 15m

$536

LouisvilleBarcelona

SDF - BCN

SDFBCN

Louisville Intl

Tue 9/23

1:44 pm-12:15 pm

1 stop16h 31m

Barcelona-El Prat

Tue 9/30

6:30 pm-1:03 pm

1 stop24h 33m

$589

LouisvilleBarcelona

SDF - BCN

SDFBCN

Louisville Intl

Sun 9/7

3:01 pm-9:05 am

1 stop12h 04m

Barcelona-El Prat

Tue 9/16

2:00 pm-9:30 pm

1 stop13h 30m

$638

LouisvilleBarcelona

SDF - BCN

SDFBCN

Louisville Intl

Fri 10/3

12:25 pm-10:10 am

1 stop15h 45m

Barcelona-El Prat

Fri 10/10

12:20 pm-10:23 pm

1 stop16h 03m

$650

LouisvilleBarcelona

SDF - BCN

SDFBCN

Louisville Intl

Fri 10/3

9:57 am-12:45 pm

2 stops20h 48m

Barcelona-El Prat

Fri 10/10

10:45 am-10:56 pm

1 stop18h 11m

$673

LouisvilleBarcelona

SDF - BCN

SDFBCN

Louisville Intl

Wed 12/24

1:55 pm-5:40 pm

2 stops21h 45m

Barcelona-El Prat

Mon 1/5

1:45 pm-10:14 pm

2 stops38h 29m

$716

LouisvilleBarcelona

SDF - BCN

SDFBCN

Louisville Intl

Tue 8/12

9:45 am-6:00 am

2 stops14h 15m

Barcelona-El Prat

Tue 8/19

12:20 pm-11:00 pm

2 stops16h 40m

$795

LouisvilleBarcelona

SDF - BCN

SDFBCN

Louisville Intl

Sun 10/19

1:58 pm-1:15 pm

1 stop17h 17m

$1,817

LouisvilleBarcelona

SDF - BCN

SDFBCN

Louisville Intl

Sun 10/19

8:45 am-7:50 am

3 stops17h 05m

$3,802

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Louisville to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona from Louisville 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 Louisville to Barcelona

How far ahead should I book a flight from Louisville to Barcelona?

Use this chart to determine the optimal time to book a round-trip flight from Louisville to Barcelona. Price data was last updated on July 25, 2025.

The price you pay for your flight from Louisville to Barcelona may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Louisville to Barcelona (average of $523). Flying from Louisville to Barcelona in June is currently the most expensive (average of $1,057). 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 SDF to BCN?

Find hourly flight availability from Louisville 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 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Louisville to Barcelona in the evening. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight at noon.

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 30, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Louisville to Barcelona. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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 Canada
7.1
Good
9,837 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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!
Iberia
7.0
Good
2,859 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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 Louisville to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Louisville to Barcelona?

    For a flight from Louisville to Barcelona, you will be flying from Louisville Intl. Louisville Intl (SDF) is just 5.3 mi from the center of the city. Louisville Intl is the only Louisville airport and it handles 0 outbound flights to Barcelona per day. 5 airlines have flights to Barcelona from Louisville Intl on a regular basis.

  • What are the cheapest airlines flying from Louisville to Barcelona round-trip?

    Our cheapest airline available from Louisville to Barcelona is Air Canada. Our recent data shows that you can find tickets from as low as $529 on this airline. Additional options worth looking into are United Airlines and Iberia, starting at $536 and $673 round-trip. You may be able to fly from Louisville to Barcelona for 46% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisville 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 Louisville to Barcelona?

    Currently, January is the cheapest month in which you can book a flight from Louisville to Barcelona (average of $523). Flying from Louisville to Barcelona in June is currently the most expensive (average of $1,057). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from Louisville to Barcelona

Discover the top 5 airlines that operate flights from Louisville 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$531Average$712FlexibilityNo cancel feeOn-time70%
KLMCheapest$590Average$874FlexibilityNo cancel feeOn-time75%
DeltaCheapest$593Average$1,171FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$612Average$975FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$620Average$1,107FlexibilityNo cancel feeOn-time71%

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