$384 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

Fri, Sep 4 - Sat, Sep 12
Finnair Logo
6:11 pm - 6:20 pm
SDF
-
BRU
18h 09m
2 stops
Finnair Logo
11:20 am - 10:58 pm
BRU
-
SDF
17h 38m
2 stops
$1,081Finnair
Fri, Sep 4 - Sat, Sep 12
United Airlines Logo
10:05 am - 7:15 am
SDF
-
BRU
15h 10m
1 stop
United Airlines Logo
10:15 am - 6:56 pm
BRU
-
SDF
14h 41m
1 stop
$1,094United Airlines
Fri, Sep 4 - Sat, Sep 12
United Airlines Logo
10:05 am - 7:15 am
SDF
-
BRU
15h 10m
1 stop
United Airlines Logo
9:25 am - 8:02 pm
BRU
-
SDF
16h 37m
2 stops
$1,098United Airlines
Wed, Jun 17 - Fri, Jul 3
KLM Logo
1:02 pm - 7:40 am
SDF
-
BRU
12h 38m
1 stop
KLM Logo
9:45 am - 7:24 pm
BRU
-
SDF
15h 39m
1 stop
$1,234KLM
Wed, Jun 17 - Fri, Jul 3
United Airlines Logo
2:05 pm - 9:00 am
SDF
-
BRU
12h 55m
1 stop
United Airlines Logo
9:40 am - 10:50 pm
BRU
-
SDF
19h 10m
2 stops
$1,263United Airlines
Wed, Jun 17 - Fri, Jul 3
KLM Logo
1:02 pm - 7:40 am
SDF
-
BRU
12h 38m
1 stop
KLM Logo
9:45 am - 7:24 pm
BRU
-
SDF
15h 39m
1 stop
$1,284KLM
Thu, May 21 - Thu, May 28
Air Canada Logo
7:10 am - 7:10 am
SDF
-
BRU
18h 00m
2 stops
Air Canada Logo
9:55 am - 10:50 pm
BRU
-
SDF
18h 55m
2 stops
$1,302Air Canada
Thu, May 21 - Thu, May 28
KLM Logo
11:12 am - 7:40 am
SDF
-
BRU
14h 28m
1 stop
KLM Logo
9:45 am - 10:36 pm
BRU
-
SDF
18h 51m
1 stop
$1,304KLM
Thu, May 21 - Thu, May 28
KLM Logo
11:12 am - 7:40 am
SDF
-
BRU
14h 28m
1 stop
KLM Logo
8:05 am - 5:01 pm
BRU
-
SDF
14h 56m
2 stops
$1,312KLM
Wed, Jun 17 - Fri, Jul 3
United Airlines Logo
7:10 am - 7:10 am
SDF
-
BRU
18h 00m
2 stops
United Airlines Logo
12:00 pm - 2:37 pm
BRU
-
SDF
32h 37m
1 stop
$1,319United 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 ($1,094) and KLM ($1,234).

Good to know

Cheapest flight$384
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 9554 reviews
7.3Comfort
6.6Food
7.7Boarding
7.1Entertainment
8.1Crew
Airline reviews

All good flight was 35 minutes early when arriving in Edinburgh

10.0 ExcellentJohn, Apr 2026
EWR - EDI
Read more United Airlines reviews

All good flight was 35 minutes early when arriving in Edinburgh

Flights were on time actually early service was good and crew cheerful

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

The boarding timing needs to be improved. The flight was delayed again because it took way too long to board. I was already exhausted from sleeping at the airport and spending all day there due to delay from my previous flight that connected in Chicago.

I had a terrible experience. My flight got delayed from Atlanta to Chicago on Monday April 6, 2026, and that led to me missing my next flight to Brussels. United Airlines didn’t provide me with any accommodation for shelter. I had to sleep at the airport in Chicago. The next flight I was put on didn’t leave until the evening hours of Tuesday 4/7/2026.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

The flight was officially delayed 3 times, and was actually later than that. Combined, it was a 3 hour delay, but there was no recognition (miles, voucher, etc). The crew seemed stressed. The captain sounded nervous in his announcements. The flight itself was smooth and uneventful.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

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

Information on your arrival and departure airports