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$626+ Cheap flights from Louisville (SDF) to Brussels

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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BRU
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Louisville to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Brussels (BR1). 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 September 15, 2025.

Round-trip from

$626
(United Airlines)

Popular in

July

Cheapest in

March

Average price

$779
From Louisville Intl to Brussels
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Highest demand for flights based on searches. 17% potential increase in price ($194 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Louisville to Brussels

Cheapest flights from Louisville to Brussels
Explore the most affordable flight options available from Louisville to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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 10/19:55 amSDF - BRU
2 stops16h 10mUnited Airlines
Fri 10/1012:00 pmBRU - SDF
1 stop14h 48mUnited Airlines
Deal found 9/15$666
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/277:20 pmSDF - BRU
1 stop31h 40mUnited Airlines
Wed 10/1510:15 amBRU - SDF
1 stop12h 58mUnited Airlines
Deal found 9/15$672
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/117:20 pmSDF - BRU
2 stops30h 45mUnited Airlines
Mon 10/2010:15 amBRU - SDF
1 stop18h 15mUnited Airlines
Deal found 9/15$681
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/22:03 pmSDF - BRU
1 stop11h 12mUnited Airlines
Fri 10/1012:00 pmBRU - SDF
1 stop14h 48mUnited Airlines
Deal found 9/15$726
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2810:55 amSDF - BRU
2 stops16h 50mUnited Airlines
Mon 10/610:15 amBRU - SDF
1 stop18h 15mUnited Airlines
Deal found 9/13$730
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/277:20 pmSDF - BRU
1 stop31h 40mUnited Airlines
Mon 10/1310:15 amBRU - SDF
1 stop12h 58mUnited Airlines
Deal found 9/15$732
This Air Canada deal was found by Cheapflights users on 9/15. 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 9/308:45 amSDF - BRU
2 stops17h 20mMultiple Airlines
Sun 10/1210:00 amBRU - SDF
3 stops18h 30mMultiple Airlines
Deal found 9/15$733
This Air Canada deal was found by Cheapflights users on 9/15. 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 9/301:58 pmSDF - BRU
3 stops17h 17mAir Canada
Sun 10/1210:00 amBRU - SDF
3 stops18h 30mAir Canada
Deal found 9/15$743
This Air France deal was found by Cheapflights users on 9/13. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2812:48 pmSDF - BRU
2 stops13h 52mAir France
Mon 10/610:45 amBRU - SDF
2 stops15h 58mAir France
Deal found 9/13$781
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/21:58 pmSDF - BRU
1 stop13h 02mUnited Airlines
Mon 10/1310:15 amBRU - SDF
1 stop12h 58mUnited Airlines
Deal found 9/15$786

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Brussels 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 September 15, 2025.
Use the filters below to find and compare flights from Louisville to Brussels that are best for you.

Fly from

Louisville

Fly to

Brussels

Route

Depart

Return

Price

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Wed 3/4

1:55 pm-8:55 am

1 stop13h 00m

Brussels Bruxelles-National

Sun 3/8

10:10 am-10:09 pm

1 stop16h 59m

$626

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Wed 10/1

6:15 am-8:05 am

2 stops19h 50m

Brussels Bruxelles-National

Wed 10/15

10:00 am-8:33 pm

2 stops16h 33m

$666

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Tue 9/30

10:55 am-9:00 am

1 stop16h 05m

Brussels Bruxelles-National

Fri 10/10

12:00 pm-8:48 pm

1 stop14h 48m

$666

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Tue 9/30

8:45 am-9:00 am

1 stop18h 15m

Brussels Bruxelles-National

Wed 10/15

10:15 am-5:13 pm

1 stop12h 58m

$666

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Wed 10/1

9:55 am-8:05 am

2 stops16h 10m

Brussels Bruxelles-National

Wed 10/15

10:15 am-8:33 pm

1 stop16h 18m

$666

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Wed 10/1

12:14 pm-7:00 am

1 stop12h 46m

Brussels Bruxelles-National

Tue 10/14

10:15 am-10:30 pm

1 stop18h 15m

$666

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Sun 9/28

8:45 am-9:00 am

1 stop18h 15m

Brussels Bruxelles-National

Wed 10/15

12:00 pm-8:48 pm

1 stop14h 48m

$666

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Sat 9/27

7:20 pm-9:00 am

1 stop31h 40m

Brussels Bruxelles-National

Tue 10/14

10:15 am-5:13 pm

1 stop12h 58m

$672

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Sat 10/11

7:20 pm-8:05 am

2 stops30h 45m

Brussels Bruxelles-National

Mon 10/20

10:15 am-10:30 pm

1 stop18h 15m

$681

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Best time to book a flight from Louisville to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels 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 Brussels

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

Currently, November is the cheapest month in which you can book a flight from Louisville to Brussels (average of $614). Flying from Louisville to Brussels in June is currently the most expensive (average of $1,077). 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 BRU?

Find hourly flight availability from Louisville to Brussels. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

It’s optimal to fly from Louisville to Brussels in the morning. By choosing this option you can save up to 36% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Brussels

Get insights into the airlines that provide service to Brussels. 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 Brussels. Reviews last updated September 15, 2025.
Peruse reviews from past customers who have flown with United Airlines from Louisville to Brussels to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,929 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Louisville to Brussels. 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 Brussels?

    Most people fly from Louisville Intl (SDF) if they book a flight from Louisville to Brussels. On average, Louisville Intl has 0 outbound flights to Brussels per day from 1 airline. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

  • How long is the flight from Louisville to Brussels?

    Airlines like United Airlines fly from Louisville to Brussels in about 13h. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 4244 mi.

  • What is the cheapest airline to fly from Louisville to Brussels round-trip?

    According to our current data, United Airlines ($603), offers the cheapest pricing from Louisville to Brussels. United Airlines is 32% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Louisville to Brussels (average of $614). Flying from Louisville to Brussels in June is currently the most expensive (average of $1,077). 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 airline flying from Louisville to Brussels

Discover the top airline that operate flights from Louisville to Brussels. 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$603Average$985FlexibilityNo cancel feeOn-time69%

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