HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Brussels

$454+ 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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BRU
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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

Best flights from Louisville to Brussels
Discover carefully curated flight deals from Louisville to Brussels that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/302:10 pmSDF - BRU
1 stop11h 05mLufthansa
Fri 2/610:10 amBRU - SDF
1 stop13h 27mLufthansa
Deal found 12/16$454
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Fri 1/232:05 pmSDF - BRU
2 stops17h 10mUnited Airlines
Tue 1/2710:00 amBRU - SDF
2 stops37h 37mUnited Airlines
Deal found 12/15$485
This Air Canada deal was found by Cheapflights users on 12/16. 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.
Fri 1/302:05 pmSDF - BRU
3 stops17h 10mMultiple Airlines
Fri 2/610:00 amBRU - SDF
2 stops16h 28mMultiple Airlines
Deal found 12/16$514
This Air Canada deal was found by Cheapflights users on 12/16. 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.
Fri 1/302:05 pmSDF - BRU
3 stops17h 10mAir Canada
Fri 2/67:00 amBRU - SDF
3 stops21h 30mAir Canada
Deal found 12/16$525
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Fri 1/309:50 amSDF - BRU
2 stops21h 25mUnited Airlines
Fri 2/610:00 amBRU - SDF
2 stops34h 48mUnited Airlines
Deal found 12/16$485

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 December 18, 2025.

Round-trip from

$454
(Kiwi.com)
From Louisville Intl to Brussels
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 December 18, 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

Fri 1/30

2:10 pm-7:15 am

1 stop11h 05m

Brussels Bruxelles-National

Fri 2/6

10:10 am-5:37 pm

1 stop13h 27m

$454

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Fri 1/23

2:05 pm-1:15 pm

2 stops17h 10m

Brussels Bruxelles-National

Tue 1/27

10:00 am-5:37 pm

2 stops37h 37m

$485

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Fri 1/30

9:50 am-1:15 pm

2 stops21h 25m

Brussels Bruxelles-National

Fri 2/6

10:00 am-2:48 pm

2 stops34h 48m

$485

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Fri 1/30

2:05 pm-1:15 pm

3 stops17h 10m

Brussels Bruxelles-National

Fri 2/6

10:00 am-8:28 pm

2 stops16h 28m

$514

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Fri 1/30

2:05 pm-1:15 pm

3 stops17h 10m

Brussels Bruxelles-National

Fri 2/6

7:00 am-10:30 pm

3 stops21h 30m

$525

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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, March is the cheapest month in which you can book a flight from Louisville to Brussels (average of $492). 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.

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 December 18, 2025.

It’s optimal to fly from Louisville to Brussels in the afternoon. By choosing this option you can save up to 70% on the cost of your flight, compared to a flight in the morning.

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 December 18, 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
9,091 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,091 reviews
United Airlines
7.4
Good
9,091 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

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 Lufthansa and United Airlines fly from Louisville to Brussels in about 11h 05m. The time it takes to get you to your destination can typically vary by up to 6h 05m. 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.

  • 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, March is the cheapest month in which you can book a flight from Louisville to Brussels (average of $492). 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 December 18, 2025.
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.