$626 Find Cheap Flights from Louisville to Belgium

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Belgium departing on 3/4. 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

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Flight Deals

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

Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
1:55 pm - 7:15 amSDF-BRU
11h 20m1 stop
United Airlines Logo
10:10 am - 8:14 pmBRU-SDF
15h 04m1 stop
$626United Airlines
Find Deal
Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
6:15 am - 7:50 amSDF-BRU
19h 35m2 stops
United Airlines Logo
11:55 am - 6:49 pmBRU-SDF
11h 54m1 stop
$627United Airlines
Find Deal
Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
9:00 am - 7:50 amSDF-BRU
16h 50m2 stops
United Airlines Logo
11:55 am - 10:09 pmBRU-SDF
15h 14m2 stops
$631United Airlines
Find Deal
Sat, Oct 11 - Mon, Oct 20
United Airlines Logo
7:20 pm - 8:05 amSDF-BRU
30h 45m2 stops
United Airlines Logo
12:00 pm - 8:48 pmBRU-SDF
14h 48m1 stop
$682United Airlines
Find Deal
Sat, Oct 11 - Mon, Oct 20
Air Canada Logo
10:55 am - 9:45 amSDF-BRU
16h 50m3 stops
Air Canada Logo
7:00 am - 8:33 pmBRU-SDF
19h 33m3 stops
$961Air Canada
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Mon, Oct 6 - Fri, Oct 10
Multiple Airlines Logo
6:43 pm - 11:55 pmSDF-BRU
47h 12m3 stops
Multiple Airlines Logo
7:15 pm - 10:47 pmBRU-SDF
33h 32m3 stops
$976Multiple Airlines
Find Deal
Sun, Dec 21 - Wed, Dec 31
American Airlines Logo
10:30 am - 10:50 amSDF-BRU
18h 20m2 stops
American Airlines Logo
11:50 am - 10:14 pmBRU-SDF
16h 24m2 stops
$988American Airlines
Find Deal
Sat, Oct 11 - Mon, Oct 20
Multiple Airlines Logo
8:45 am - 8:05 amSDF-BRU
17h 20m2 stops
Multiple Airlines Logo
7:00 am - 8:33 pmBRU-SDF
19h 33m3 stops
$1,027Multiple Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
Air Canada Logo
2:02 pm - 1:15 pmSDF-BRU
18h 13m3 stops
Air Canada Logo
7:00 am - 8:44 pmBRU-SDF
19h 44m3 stops
$1,359Air Canada
Find Deal
Mon, Oct 6 - Fri, Oct 10
KLM Logo
5:58 pm - 8:40 amSDF-BRU
32h 42m1 stop
KLM Logo
10:45 am - 10:34 pmBRU-SDF
17h 49m1 stop
$1,813KLM
Find Deal
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.

What’s the cheapest day of the week to fly from Louisville to Belgium?

The average price of all round-trip flights from Louisville to Belgium clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Louisville to Belgium, look for departures on Thursdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Belgium, Thursday is the cheapest day to fly and Saturday is the most expensive.

Good to know

Low seasonMarch
Cheapest flight$626
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 9% 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.

  • What is the cheapest time of day to fly to Belgium?

    The cheapest time of day to fly to Belgium is generally in the morning, when round-trip flights cost $811 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Belgium is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,238.

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 8926 reviews
7.3Comfort
8.1Crew
7.7Boarding
7.1Entertainment
6.6Food
Airline reviews

Terrible. They wouldn't allow me on my flight on the 14th..

2.0 MediocreJulian, Sep 2025DEN - DRO
Read more United Airlines reviews

Terrible. They wouldn't allow me on my flight on the 14th..

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Tastless food and too obvious lack of enthusiasm for service in the economy vesus business class

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

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

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