$602 Find Cheap Flights from Knoxville 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 Knoxville to Belgium departing on 4/8. 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 Knoxville 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 Knoxville 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 Knoxville to Belgium

Wed, Apr 8 - Wed, Apr 22
United Airlines Logo
2:25 pm - 1:15 pm
TYS
-
BRU
16h 50m
2 stops
United Airlines Logo
7:00 am - 11:03 pm
BRU
-
TYS
22h 03m
2 stops
$609United Airlines
Wed, Apr 8 - Wed, Apr 22
United Airlines Logo
1:52 pm - 8:00 pm
TYS
-
BRU
24h 08m
2 stops
United Airlines Logo
6:45 am - 11:03 pm
BRU
-
TYS
22h 18m
2 stops
$611United Airlines
Wed, Apr 8 - Wed, Apr 22
United Airlines Logo
9:40 am - 8:00 pm
TYS
-
BRU
28h 20m
2 stops
United Airlines Logo
10:15 am - 11:03 pm
BRU
-
TYS
18h 48m
1 stop
$612United Airlines
Wed, Apr 8 - Wed, Apr 22
United Airlines Logo
9:40 am - 7:15 am
TYS
-
BRU
15h 35m
1 stop
United Airlines Logo
10:15 am - 11:03 pm
BRU
-
TYS
18h 48m
1 stop
$625United Airlines
Fri, Apr 10 - Fri, Apr 17
United Airlines Logo
7:00 am - 1:15 pm
TYS
-
BRU
24h 15m
2 stops
United Airlines Logo
9:25 am - 10:29 pm
BRU
-
TYS
43h 04m
2 stops
$632United Airlines
Fri, Apr 10 - Fri, Apr 17
United Airlines Logo
10:49 am - 9:00 am
TYS
-
BRU
16h 11m
1 stop
United Airlines Logo
9:25 am - 10:29 pm
BRU
-
TYS
43h 04m
2 stops
$635United Airlines
Fri, Apr 10 - Fri, Apr 17
United Airlines Logo
7:00 am - 9:00 am
TYS
-
BRU
20h 00m
1 stop
United Airlines Logo
10:15 am - 10:29 pm
BRU
-
TYS
18h 14m
1 stop
$655United Airlines
Mon, Apr 13 - Mon, Apr 20
United Airlines Logo
7:20 pm - 8:00 pm
TYS
-
BRU
18h 40m
2 stops
United Airlines Logo
12:00 pm - 7:42 pm
BRU
-
TYS
13h 42m
1 stop
$662United Airlines
Mon, Apr 13 - Mon, Apr 20
United Airlines Logo
9:40 am - 7:15 am
TYS
-
BRU
15h 35m
1 stop
United Airlines Logo
10:15 am - 10:34 pm
BRU
-
TYS
18h 19m
1 stop
$675United Airlines
Sat, Apr 11 - Sat, Apr 18
United Airlines Logo
9:40 am - 7:15 am
TYS
-
BRU
15h 35m
1 stop
United Airlines Logo
8:30 am - 10:29 pm
BRU
-
TYS
19h 59m
2 stops
$723United Airlines
Booking Insights

KAYAK's insights & trends for Knoxville to Belgium flights

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

How long does a flight from Knoxville to Belgium take?

The duration of a flight to Belgium depends on your arrival airport. The shortest route to Belgium from Knoxville is to Brussels, which takes 15h 45m.

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Good to know

Cheapest flight$609
Flight from Knoxville to Brussels

FAQs - booking Belgium flights

  • How does KAYAK find such low prices on flights from Knoxville 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 Knoxville to Belgium.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Knoxville 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 Knoxville 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 Knoxville 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 Knoxville 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 Knoxville 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 Knoxville to Belgium

 
Need help choosing which airline to fly with from Knoxville 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 9363 reviews
7.1Entertainment
7.7Boarding
8.1Crew
6.6Food
7.3Comfort
Airline reviews

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

8.0 ExcellentJack, Feb 2026
SFO - PDX
Read more United Airlines reviews

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Flight on time. Excellent service in Premium Economy. Great food served and cleaned up promptly. Unfortunately the climate control was malfunctioning and it was very cold and felt a bit like camping. Cold helps with sleep though so not complaining too much. Slept well. It asks to rate "entertainment". I do not like any IFE, don't shove a big screen in my face—I have my own phone if I want it. So this will always get low ratings.

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

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

Information on your arrival and departure airports

Knoxville (TYS)