$521 Find Cheap Flights from Louisville to Belgium

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

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Book Cheap Louisville to Belgium Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Belgium that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to Belgium

Sun, May 3 - Sun, May 10
United Airlines Logo
5:40 am - 9:00 am
SDF
-
BRU
21h 20m
1 stop
United Airlines Logo
10:15 am - 5:00 pm
BRU
-
SDF
12h 45m
1 stop
$864United Airlines
Sun, May 3 - Sun, May 10
KLM Logo
7:54 pm - 7:40 am
SDF
-
BRU
29h 46m
1 stop
KLM Logo
6:20 am - 5:01 pm
BRU
-
SDF
16h 41m
2 stops
$947KLM
Sun, May 3 - Sun, May 10
Lufthansa Logo
7:54 pm - 10:35 pm
SDF
-
BRU
20h 41m
2 stops
Lufthansa Logo
7:00 am - 10:30 pm
BRU
-
SDF
21h 30m
2 stops
$960Lufthansa
Thu, May 14 - Thu, May 21
American Airlines Logo
4:35 pm - 4:10 pm
SDF
-
BRU
17h 35m
2 stops
American Airlines Logo
10:50 am - 12:28 am
BRU
-
SDF
19h 38m
2 stops
$995American Airlines
Thu, May 14 - Thu, May 21
United Airlines Logo
2:30 pm - 7:15 am
SDF
-
BRU
10h 45m
1 stop
United Airlines Logo
9:55 am - 12:21 pm
BRU
-
SDF
32h 26m
2 stops
$1,020United Airlines
Sun, May 17 - Sun, May 24
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
Thu, May 14 - Thu, May 21
United Airlines Logo
2:30 pm - 7:15 am
SDF
-
BRU
10h 45m
1 stop
United Airlines Logo
10:15 am - 7:02 pm
BRU
-
SDF
14h 47m
1 stop
$1,040United Airlines
Sun, May 17 - Sun, May 24
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
Sat, May 16 - Sat, May 23
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
Booking Insights

KAYAK's insights & trends for Louisville to Belgium flights

Get data-powered insights and trends into flights from Louisville to Belgium to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Louisville to Belgium?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Louisville to Belgium were found on United Airlines ($864) and KLM ($947).

Find deals

Good to know

Low seasonMarch
Cheapest flight$521
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Louisville to Brussels

FAQs - booking Belgium flights

  • How does KAYAK find such low prices on flights from Louisville to Belgium?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to Belgium.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Belgium?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Louisville to Belgium is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Belgium?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Louisville to Belgium with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Belgium?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Louisville to Belgium up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Louisville to Belgium

 
Need help choosing which airline to fly with from Louisville to Belgium? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9538 reviews
7.1Entertainment
6.6Food
7.3Comfort
7.7Boarding
8.1Crew
Airline reviews

Great until we got to FRA. The next trip leg we were put in Business Class where seats had minimal padding!!!! They were awful and United Airlines needs to have their Lufthansa partner up their game or I won’t fly with them again!!

10.0 ExcellentNan, Apr 2026
ORD - FRA
Read more United Airlines reviews

Great until we got to FRA. The next trip leg we were put in Business Class where seats had minimal padding!!!! They were awful and United Airlines needs to have their Lufthansa partner up their game or I won’t fly with them again!!

I had a good time. However, I paid for the wifi and it was in and out the whole flight.

one staffer was frustrated (it happen); the flight was late and the pilot mentioned they'll make amend but the snacks were the same, other than that the aircraft was clean and everything went smooth, no complaints

The wheelchair service is useless. They live you in different spots, not tell you anything just wait. I waited 30 minutes in Frankfurt when decided to walk the 25 minutes distance. In Budapest nobody came.

It was perfect! I've never flown with United before, but I definitely will in the future

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Everything you need to know for your flight from Louisville to Belgium

Information on your arrival and departure airports

Louisville (SDF)