$484 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 1/23. 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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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

Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
2:10 pm - 1:15 pm
SDF
-
BRU
17h 05m2 stops
United Airlines Logo
10:00 am - 2:48 pm
BRU
-
SDF
34h 48m2 stops
$484United Airlines
Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
1:50 pm - 8:05 am
SDF
-
BRU
12h 15m1 stop
United Airlines Logo
10:10 am - 8:28 pm
BRU
-
SDF
16h 18m1 stop
$507United Airlines
Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
2:10 pm - 7:15 am
SDF
-
BRU
11h 05m1 stop
United Airlines Logo
10:00 am - 10:30 pm
BRU
-
SDF
18h 30m2 stops
$511United Airlines
Sat, Jan 24 - Sat, Jan 31
United Airlines Logo
1:50 pm - 8:05 am
SDF
-
BRU
12h 15m1 stop
United Airlines Logo
10:30 am - 8:28 pm
BRU
-
SDF
15h 58m2 stops
$514United Airlines
Sat, Jan 24 - Sat, Jan 31
Lufthansa Logo
2:10 pm - 7:15 am
SDF
-
BRU
11h 05m1 stop
Lufthansa Logo
11:15 am - 7:31 pm
BRU
-
SDF
14h 16m1 stop
$549Lufthansa
Sat, Jan 24 - Sat, Jan 31
Air Canada Logo
2:05 pm - 1:15 pm
SDF
-
BRU
17h 10m3 stops
Air Canada Logo
7:00 am - 8:28 pm
BRU
-
SDF
19h 28m3 stops
$819Air Canada
Tue, May 5 - Mon, May 11
Aer Lingus Logo
12:56 pm - 8:40 pm
SDF
-
BRU
25h 44m2 stops
Aer Lingus Logo
9:20 pm - 8:55 pm
BRU
-
SDF
29h 35m2 stops
$922Aer Lingus
Tue, May 5 - Mon, May 11
Lufthansa Logo
1:55 pm - 9:00 am
SDF
-
BRU
13h 05m1 stop
Lufthansa Logo
7:30 pm - 4:49 pm
BRU
-
SDF
27h 19m2 stops
$1,085Lufthansa
Tue, May 5 - Mon, May 11
Lufthansa Logo
2:30 pm - 7:15 am
SDF
-
BRU
10h 45m1 stop
Lufthansa Logo
11:10 am - 11:54 pm
BRU
-
SDF
18h 44m1 stop
$1,301Lufthansa
Tue, May 5 - Mon, May 11
Multiple Airlines Logo
8:40 am - 7:10 am
SDF
-
BRU
16h 30m3 stops
Multiple Airlines Logo
9:40 am - 7:41 pm
BRU
-
SDF
16h 01m2 stops
$1,378Multiple 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.

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.

Find deals

Good to know

Cheapest flight$484
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 9095 reviews
7.1Entertainment
7.3Comfort
7.7Boarding
8.1Crew
6.6Food
Airline reviews

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

10.0 ExcellentMichele, Dec 2025
RSW - ORD
Read more United Airlines reviews

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

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

Information on your arrival and departure airports

Louisville (SDF)