$424 Find Cheap Flights from Knoxville 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 Knoxville to Belgium departing on 8/20. 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 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

mié., nov. 12 - dom., nov. 16
Delta Logo
12:00 pm - 9:00 amTYS-BRU
15h 00m2 stops
Delta Logo
8:05 am - 6:13 pmBRU-TYS
16h 08m2 stops
$543Delta
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mié., nov. 12 - dom., nov. 16
United Airlines Logo
1:52 pm - 8:55 amTYS-BRU
13h 03m1 stop
United Airlines Logo
10:10 am - 8:33 pmBRU-TYS
16h 23m1 stop
$656United Airlines
Find Deal
mar., sep. 23 - mié., oct. 1
Scandinavian Airlines Logo
4:13 pm - 7:50 pmTYS-BRU
21h 37m2 stops
Scandinavian Airlines Logo
8:30 pm - 11:44 pmBRU-TYS
33h 14m2 stops
$660Scandinavian Airlines
Find Deal
jue., sep. 4 - dom., oct. 5
Scandinavian Airlines Logo
1:53 pm - 3:20 pmTYS-BRU
19h 27m2 stops
Scandinavian Airlines Logo
8:30 pm - 11:46 pmBRU-TYS
33h 16m2 stops
$690Scandinavian Airlines
Find Deal
mar., sep. 23 - mié., oct. 1
United Airlines Logo
2:30 pm - 7:15 amTYS-BRU
10h 45m1 stop
United Airlines Logo
10:00 am - 10:50 pmBRU-TYS
18h 50m2 stops
$766United Airlines
Find Deal
jue., sep. 4 - dom., oct. 5
United Airlines Logo
2:30 pm - 7:15 amTYS-BRU
10h 45m1 stop
United Airlines Logo
10:00 am - 10:50 pmBRU-TYS
42h 50m2 stops
$823United Airlines
Find Deal
jue., sep. 4 - dom., oct. 5
KLM Logo
11:54 am - 8:40 amTYS-BRU
14h 46m1 stop
KLM Logo
10:45 am - 9:26 pmBRU-TYS
16h 41m1 stop
$846KLM
Find Deal
lun., dic. 29 - dom., ene. 4
British Airways Logo
3:07 pm - 11:10 amTYS-BRU
14h 03m2 stops
British Airways Logo
9:35 pm - 5:36 pmBRU-TYS
26h 01m2 stops
$947British Airways
Find Deal
mar., sep. 23 - mié., oct. 1
 Logo
7:00 am - 8:05 amTYS-BRU
19h 05m3 stops
 Logo
10:00 am - 10:50 pmBRU-TYS
18h 50m2 stops
mar., sep. 23 - mié., oct. 1
 Logo
9:55 am - 8:05 amTYS-BRU
16h 10m3 stops
 Logo
10:00 am - 10:50 pmBRU-TYS
18h 50m2 stops
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.

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

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

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

Good to know

Low seasonApril
Cheapest flight$424
Best time to beat the crowds with an average 44% drop in price.
Most popular time to fly with an average 41% increase in price.
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.

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

    The cheapest time of day to fly to Belgium is generally in the evening, when round-trip flights cost $949 on average. Morning departures are around 10% more expensive 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 $1,105.

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 8915 reviews
8.1Crew
7.3Comfort
7.7Boarding
7.1Entertainment
6.6Food
Airline reviews

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

2.0 MediocreAnonymous, Aug 2025SEA - DEN
Read more United Airlines reviews

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

The service was good, the food could have been better.

Staff was rude. Didn’t give water for 2 hours. Worst service

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

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

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