SDF - BRU

$626 Find Cheap Flights from Louisville to Brussels

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 Bruxelles-National 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

KAYAK searches hundreds of travel sites at once for deals on flights to Brussels Bruxelles-National Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Brussels, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Brussels, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Louisville to Brussels (SDF-BRU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Brussels 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 Bruxelles-National

Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
1:55 pm - 7:15 amSDF-BRU
11h 20m1 stop
United Airlines Logo
11:55 am - 6:49 pmBRU-SDF
11h 54m1 stop
$626United Airlines
Find Deal
Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
9:35 am - 7:50 amSDF-BRU
16h 15m2 stops
United Airlines Logo
11:55 am - 10:09 pmBRU-SDF
15h 14m2 stops
$631United Airlines
Find Deal
Wed, Oct 1 - Fri, Oct 10
United Airlines Logo
9:55 am - 8:05 amSDF-BRU
16h 10m2 stops
United Airlines Logo
12:00 pm - 8:48 pmBRU-SDF
14h 48m1 stop
$666United Airlines
Find Deal
Tue, Sep 30 - Sun, Oct 12
Multiple Airlines Logo
8:45 am - 8:05 amSDF-BRU
17h 20m2 stops
Multiple Airlines Logo
10:00 am - 10:30 pmBRU-SDF
18h 30m3 stops
$733Multiple Airlines
Find Deal
Tue, Sep 30 - Sun, Oct 12
Air Canada Logo
1:58 pm - 1:15 pmSDF-BRU
17h 17m3 stops
Air Canada Logo
10:00 am - 10:30 pmBRU-SDF
18h 30m3 stops
$743Air Canada
Find Deal
Sun, Sep 28 - Mon, Oct 6
Air France Logo
12:48 pm - 8:40 amSDF-BRU
13h 52m2 stops
Air France Logo
10:45 am - 8:43 pmBRU-SDF
15h 58m2 stops
$781Air France
Find Deal
Sun, Sep 28 - Wed, Oct 15
Delta Logo
10:45 am - 8:40 amSDF-BRU
15h 55m2 stops
Delta Logo
10:45 am - 9:48 pmBRU-SDF
17h 03m1 stop
$803Delta
Find Deal
Sat, Sep 27 - Fri, Oct 10
Delta Logo
3:09 pm - 8:40 amSDF-BRU
11h 31m1 stop
Delta Logo
10:45 am - 7:10 pmBRU-SDF
14h 25m1 stop
$908Delta
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 - 6:33 pmBRU-SDF
17h 33m3 stops
$1,074Air Canada
Find Deal
Sat, Oct 11 - Mon, Oct 20
Multiple Airlines Logo
10:55 am - 9:45 amSDF-BRU
16h 50m3 stops
Multiple Airlines Logo
10:00 am - 8:33 pmBRU-SDF
16h 33m2 stops
$1,217Multiple Airlines
Find Deal

Everything you should know

Top airlines
United Airlines
Cheapest • from $626 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$626
United Airlines
Wed 3/4Sun 3/8
SDF - BRU • 1 stop
Cheapest one-way
Multiple Airlines
Tue 9/16
SDF - BRU • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Bruxelles-National!
Booking Insights

KAYAK's insights & trends for Louisville to Bruxelles-National flights

Get data-powered insights and trends into flights from Louisville to Bruxelles-National 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 Brussels?

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

If you are looking for a flight deal from Louisville to Brussels, look for departures on Thursdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Brussels, 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

When to book flights from Louisville to Bruxelles-National

Are your dates flexible? Find out the best times to travel from Louisville to Bruxelles-National based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Louisville to Brussels flights

  • What is the cheapest flight from Louisville to Brussels Bruxelles-National Airport?

    In the last 3 days, the lowest price for a flight from Louisville to Brussels Bruxelles-National Airport was $626 for a round-trip ticket.

  • Do I need a passport to fly between Louisville and Brussels?

    Yes

  • Which aircraft models fly most regularly from Louisville to Brussels?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Louisville to Brussels?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Louisville and Brussels, with SkyTeam being the most commonly used for this route.

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

    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 Brussels.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels from Louisville 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 Brussels?

    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 to Brussels with an airline and back to Louisville with another airline. Booking your flights between Louisville and BRU can sometimes prove cheaper using this method.

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

    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 to Brussels from Louisville 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 Bruxelles-National

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Brussels. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to Bruxelles-National? 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 8929 reviews
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
7.3Comfort
Airline reviews

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.

2.0 MediocreAnonymous, Sep 2025SFO - MEX
Read more United Airlines reviews

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.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

Everything you need to know for your flight from Louisville to Bruxelles-National

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