HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Brussels

$420+ Cheap flights from Louisville (SDF) to Brussels

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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BRU
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to Brussels with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 January 29, 2026.

This Flysmarter deal was found by Cheapflights users on 1/26. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/99:00 am
SDF
-
BRU
2 stops17h 50m
Multiple Airlines
Mon 3/168:10 pm
BRU
-
SDF
2 stops29h 04m
Multiple Airlines
Deal found 1/26$489
This Flysmarter deal was found by Cheapflights users on 1/26. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/91:56 pm
SDF
-
BRU
2 stops15h 14m
KLM
Mon 3/1610:00 am
BRU
-
SDF
1 stop28h 28m
KLM
Deal found 1/26$500
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/259:00 am
SDF
-
BRU
2 stops22h 15m
United Airlines
Sun 3/111:15 am
BRU
-
SDF
1 stop14h 40m
United Airlines
Deal found 1/28$506
This oojo deal was found by Cheapflights users on 1/28. 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 3/91:30 pm
SDF
-
BRU
2 stops26h 30m
British Airways
Mon 3/1611:50 am
BRU
-
SDF
2 stops27h 14m
British Airways
Deal found 1/28$511

Find 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 January 29, 2026.

Round-trip from

$489
(Flysmarter)

One-way from

$420
(American Airlines)

Popular in

October

Cheapest in

March

Average price

$707
From Louisville Intl to Brussels
Search Deals
One-way flight from Louisville Intl to Brussels
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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

Mon 3/9

9:00 am-7:50 am

2 stops17h 50m

Brussels Bruxelles-National

Mon 3/16

8:10 pm-8:14 pm

2 stops29h 04m

$489

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Mon 3/9

1:56 pm-10:10 am

2 stops15h 14m

Brussels Bruxelles-National

Mon 3/16

10:00 am-9:28 am

1 stop28h 28m

$500

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Wed 2/25

9:00 am-1:15 pm

2 stops22h 15m

Brussels Bruxelles-National

Sun 3/1

11:15 am-7:55 pm

1 stop14h 40m

$506

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Tue 7/14

8:15 pm-8:25 pm

2 stops18h 10m

$420

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Tue 7/14

11:00 am-9:00 am

1 stop16h 00m

$424

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Tue 7/14

9:00 am-7:10 am

3 stops16h 10m

$435

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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, February is the cheapest month in which you can book a flight from Louisville to Brussels (average of $486). Flying from Louisville to Brussels in June is currently the most expensive (average of $944). 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.

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 January 29, 2026.
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
9,215 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 KLM and United Airlines fly from Louisville to Brussels in about 15h 14m. The time it takes to get you to your destination can typically vary by up to 7h 01m. Airlines will cover a distance of 4244 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, United Airlines ($637), 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, February is the cheapest month in which you can book a flight from Louisville to Brussels (average of $486). Flying from Louisville to Brussels in June is currently the most expensive (average of $944). 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$637Average$1,008FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.