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Cheap flights from Louisville to Brussels from $521

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Brussels departing on 7/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Louisville to Brussels

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
4:35 pm - 7:10 pm
SDF
-
BRU
20h 35m
2 stops
British Airways Logo
8:50 pm - 10:19 pm
BRU
-
SDF
31h 29m
2 stops
$1,019British Airways
Mon, May 18 - Mon, May 25
United Airlines Logo
7:15 am - 9:00 am
SDF
-
BRU
19h 45m
1 stop
United Airlines Logo
9:40 am - 12:21 pm
BRU
-
SDF
32h 41m
2 stops
$1,025United Airlines
Mon, May 18 - Mon, May 25
United Airlines Logo
6:17 am - 8:55 am
SDF
-
BRU
20h 38m
2 stops
United Airlines Logo
12:00 pm - 7:18 pm
BRU
-
SDF
13h 18m
1 stop
$1,036United Airlines
Sun, May 17 - Sun, May 24
Air Canada Logo
7:15 am - 7:10 am
SDF
-
BRU
17h 55m
2 stops
Air Canada Logo
9:55 am - 10:50 pm
BRU
-
SDF
18h 55m
2 stops
$1,038Air Canada
Sun, May 17 - Sun, May 24
KLM Logo
1:00 pm - 7:40 am
SDF
-
BRU
12h 40m
1 stop
KLM Logo
9:45 am - 9:19 pm
BRU
-
SDF
17h 34m
1 stop
$1,040KLM
Mon, May 18 - Mon, May 25
KLM Logo
7:59 pm - 7:40 am
SDF
-
BRU
29h 41m
1 stop
KLM Logo
9:45 am - 11:59 pm
BRU
-
SDF
20h 14m
1 stop
$1,046KLM
Sun, May 17 - Sun, May 24
Multiple Airlines Logo
9:10 am - 7:10 am
SDF
-
BRU
16h 00m
2 stops
Multiple Airlines Logo
7:00 am - 8:23 pm
BRU
-
SDF
19h 23m
3 stops
$1,060Multiple Airlines
Mon, May 18 - Mon, May 25
United Airlines Logo
7:40 pm - 8:00 pm
SDF
-
BRU
18h 20m
2 stops
United Airlines Logo
9:55 am - 2:37 pm
BRU
-
SDF
34h 42m
2 stops
$1,076United Airlines
Sat, May 16 - Sat, May 23
United Airlines Logo
7:40 pm - 8:00 pm
SDF
-
BRU
18h 20m
2 stops
United Airlines Logo
10:15 am - 11:59 pm
BRU
-
SDF
19h 44m
1 stop
$1,096United Airlines
Sat, May 16 - Sat, May 23
United Airlines Logo
2:00 pm - 9:00 am
SDF
-
BRU
13h 00m
1 stop
United Airlines Logo
10:15 am - 7:02 pm
BRU
-
SDF
14h 47m
1 stop
$1,202United Airlines
Sat, May 16 - Sat, May 23

Delta flights from Louisville to Brussels

Our best Delta deals on Louisville to Brussels flight tickets
Delta
Jun 17
SDF8:11 amLouisville Intl
17h 29m
1 stop
BRU7:40 amBrussels Bruxelles-National
Jul 3
BRU9:45 amBrussels Bruxelles-National
17h 34m
1 stop
SDF9:19 pmLouisville Intl
$1,234
Delta
Jun 17
SDF7:05 amLouisville Intl
18h 35m
1 stop
BRU7:40 amBrussels Bruxelles-National
Jul 3
BRU9:45 amBrussels Bruxelles-National
17h 34m
1 stop
SDF9:19 pmLouisville Intl
$1,303

United Airlines flights from Louisville to Brussels

Our best United Airlines deals on Louisville to Brussels flight tickets
United Airlines
May 18
SDF7:15 amLouisville Intl
19h 45m
1 stop
BRU9:00 amBrussels Bruxelles-National
May 25
BRU9:40 amBrussels Bruxelles-National
32h 41m
2 stops
SDF12:21 pmLouisville Intl
$1,025
United Airlines
May 17
SDF6:17 amLouisville Intl
20h 38m
2 stops
BRU8:55 amBrussels Bruxelles-National
May 24
BRU12:00 pmBrussels Bruxelles-National
13h 18m
1 stop
SDF7:18 pmLouisville Intl
$1,036
United Airlines
May 16
SDF7:40 pmLouisville Intl
18h 20m
2 stops
BRU8:00 pmBrussels Bruxelles-National
May 23
BRU9:55 amBrussels Bruxelles-National
34h 42m
2 stops
SDF2:37 pmLouisville Intl
$1,076

momondo 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, momondo users made 832,500 searches. Data last updated April 5, 2026.
Use the filters below to find and compare flights from Louisville to Brussels that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Mon 5/18

4:35 pm-7:10 pm

2 stops20h 35m

Brussels Bruxelles-National

Mon 5/25

8:50 pm-10:19 pm

2 stops31h 29m

$1,019

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Mon 5/18

7:15 am-9:00 am

1 stop19h 45m

Brussels Bruxelles-National

Mon 5/25

9:40 am-12:21 pm

2 stops32h 41m

$1,025

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Sun 5/17

6:17 am-8:55 am

2 stops20h 38m

Brussels Bruxelles-National

Sun 5/24

12:00 pm-7:18 pm

1 stop13h 18m

$1,036

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Sun 5/17

7:15 am-7:10 am

2 stops17h 55m

Brussels Bruxelles-National

Sun 5/24

9:55 am-10:50 pm

2 stops18h 55m

$1,038

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Mon 5/18

1:00 pm-7:40 am

1 stop12h 40m

Brussels Bruxelles-National

Mon 5/25

9:45 am-9:19 pm

1 stop17h 34m

$1,040

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Sun 5/17

7:59 pm-7:40 am

1 stop29h 41m

Brussels Bruxelles-National

Sun 5/24

9:45 am-11:59 pm

1 stop20h 14m

$1,046

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Mon 5/18

9:10 am-7:10 am

2 stops16h 00m

Brussels Bruxelles-National

Mon 5/25

7:00 am-8:23 pm

3 stops19h 23m

$1,060

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Sat 5/16

7:40 pm-8:00 pm

2 stops18h 20m

Brussels Bruxelles-National

Sat 5/23

9:55 am-2:37 pm

2 stops34h 42m

$1,076

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Sat 5/16

7:40 pm-8:00 pm

2 stops18h 20m

Brussels Bruxelles-National

Sat 5/23

10:15 am-11:59 pm

1 stop19h 44m

$1,096
Quickest round-trip

LouisvilleBrussels

SDF - BRU

SDFBRU

Louisville Intl

Sat 5/16

2:00 pm-9:00 am

1 stop13h 00m

Brussels Bruxelles-National

Sat 5/23

10:15 am-7:02 pm

1 stop14h 47m

$1,202

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Brussels from

How to get the cheapest flight ticket from Louisville to Brussels

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Louisville Intl to Brussels?

British Airways and KLM are the most popular carriers operating from Louisville Intl to Brussels

Cheap Louisville to Brussels flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Brussels

Fastest flight time

17h 29m

Direct flights

None
The fastest flight from Louisville to Brussels takes 17h 29m
There are no direct flights from Louisville to Brussels. There are no popular flight routes from Louisville to Brussels.
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Frequently asked questions about flying from Louisville to Brussels

  • How far is Louisville Intl to Brussels by plane?

    Brussels is 4237.1 mi away from Louisville Intl. In terms of flight time, this usually takes a little over 17h 29m.

  • When did momondo last update prices for flights from Louisville Intl Airport to Brussels?

    Prices for flights from Louisville Intl Airport to Brussels refresh daily.

  • How many operators does momondo search for flights from Louisville Intl Airport to Brussels?

  • How old do you have to be to fly from Louisville Intl Airport to Brussels?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Louisville Intl Airport to Brussels.

  • What documentation or ID do you need to fly to Brussels?

    The travel and health documents required for your trip to Brussels can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Brussels. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Louisville to Brussels

Compare and see reviews for airlines that fly from Louisville to Brussels with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $637Free CancellationRating
7.4
9,545 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Brussels?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Brussels for you.

Can I find flights from Louisville to Brussels with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Brussels flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Brussels?

Once you have performed a search for Louisville to Brussels flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Louisville to Brussels right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Brussels, momondo offers a useful price alert feature which will track prices for flights to Brussels from Louisville and alert you when they change.

An easier way to manage your Brussels trip

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Find better results for your trip to Belgium

Fly into one of these airports located in Brussels

Airports listed have a maximum distance of 27.4 mi from Brussels
Brussels Bruxelles-National Airport
Charleroi Brussels Airport