$439 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 12/23. 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

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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

Fri, Nov 21 - Sun, Nov 30
United Airlines Logo
7:20 pm - 7:50 amTYS-BRU
30h 30m2 stops
United Airlines Logo
11:55 am - 11:59 pmBRU-TYS
18h 04m1 stop
$1,213United Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 30
United Airlines Logo
7:20 pm - 7:50 amTYS-BRU
30h 30m2 stops
United Airlines Logo
4:55 pm - 11:59 pmBRU-TYS
37h 04m2 stops
$1,232United Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 30
United Airlines Logo
5:45 am - 7:15 amTYS-BRU
19h 30m1 stop
United Airlines Logo
11:55 am - 11:59 pmBRU-TYS
18h 04m1 stop
$1,321United Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 30
Multiple Airlines Logo
9:45 pm - 1:15 pmTYS-BRU
33h 30m3 stops
Multiple Airlines Logo
10:15 am - 2:31 amBRU-TYS
22h 16m2 stops
$1,546Multiple Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 30
Multiple Airlines Logo
9:45 pm - 1:15 pmTYS-BRU
33h 30m3 stops
Multiple Airlines Logo
8:50 pm - 10:40 pmBRU-TYS
31h 50m3 stops
$1,645Multiple Airlines
Find Deal
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

Cheapest flight$439
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 8976 reviews
7.3Comfort
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
Airline reviews

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

10.0 ExcellentAnonymous, Oct 2025OGG - DEN
Read more United Airlines reviews

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

The worst landing I have ever had on a domestic flight. Thought we would lose the landing gear on landing in Newark. Then we spent 40 minutes trying to position the plane in the right place to be able to get the jet way to the plane. The plane arrived stopped. The announcer was that we were there. Everybody got up, then we were told to sit back down because they had to have us towed to a different position. We got towed and then everyone stood up and they told us we were in the wrong position to sit back down again, and then we got towed to a different position This did not happen immediately. It was 30 minutes while we wandered around a small section of the tarmac in Newark close to the gate, but apparently not close enough. Horrifying experience The CAB should be investigating that flight

Food was poorly timed and not good.. Hand held snacks, really. I kept asking for water and never got any. Service was rushed for a 7-hour flight.

Boarding was organized. Old plane. Seat fairly comfortable. Business Class much too large so you don’t receive as much attention as you should considering what you pay for the seat.

Boarding was organized. Plane seats comfortable and service was attentive. Food options were good.

This was a very average flight. The seat was out of alignment so more uncomfortable than usual. The cabin felt not well maintained. But I safely got where I needed to go.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

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

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