$439 Find Cheap Flights from Knoxville to Austria - Compare and Save

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 Austria departing on 7/28. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Austria

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Knoxville to Austria 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 Austria 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 Austria

Sun, Dec 6 - Thu, Dec 10
United Airlines Logo
2:00 pm - 5:25 pm
TYS
-
VIE
21h 25m
2 stops
United Airlines Logo
10:35 am - 7:34 pm
VIE
-
TYS
38h 59m
2 stops
$765United Airlines
Fri, Aug 14 - Fri, Aug 21
United Airlines Logo
10:40 am - 8:15 am
TYS
-
VIE
15h 35m
1 stop
United Airlines Logo
10:30 am - 6:17 pm
VIE
-
TYS
37h 47m
2 stops
$914United Airlines
Fri, Aug 14 - Fri, Aug 21
Multiple Airlines Logo
1:53 pm - 12:35 pm
TYS
-
VIE
16h 42m
2 stops
Multiple Airlines Logo
10:30 am - 2:37 pm
VIE
-
TYS
34h 07m
2 stops
$916Multiple Airlines
Wed, Aug 12 - Tue, Aug 18
Lufthansa Logo
7:20 pm - 8:30 pm
TYS
-
VIE
19h 10m
2 stops
Lufthansa Logo
10:30 am - 11:59 pm
VIE
-
TYS
19h 29m
2 stops
$917Lufthansa
Wed, Sep 9 - Wed, Sep 16
Lufthansa Logo
7:20 pm - 4:35 pm
TYS
-
VIE
15h 15m
2 stops
Lufthansa Logo
6:10 am - 10:49 pm
VIE
-
TYS
22h 39m
2 stops
$930Lufthansa
Wed, Sep 9 - Wed, Sep 16
United Airlines Logo
9:45 am - 8:10 am
TYS
-
VIE
16h 25m
1 stop
United Airlines Logo
10:50 am - 10:49 pm
VIE
-
TYS
17h 59m
2 stops
$931United Airlines
Wed, Sep 9 - Wed, Sep 16
United Airlines Logo
9:45 am - 7:10 am
TYS
-
VIE
15h 25m
2 stops
United Airlines Logo
6:50 am - 10:49 pm
VIE
-
TYS
21h 59m
3 stops
$949United Airlines
Mon, Jul 13 - Tue, Jul 21
Lufthansa Logo
7:19 pm - 8:30 pm
TYS
-
VIE
19h 11m
2 stops
Lufthansa Logo
1:20 pm - 11:54 pm
VIE
-
TYS
16h 34m
2 stops
$961Lufthansa
Mon, Jul 13 - Tue, Jul 21
Lufthansa Logo
5:45 pm - 4:35 pm
TYS
-
VIE
16h 50m
2 stops
Lufthansa Logo
10:30 am - 11:54 pm
VIE
-
TYS
19h 24m
2 stops
$962Lufthansa
Fri, Aug 14 - Fri, Aug 21
United Airlines Logo
1:53 pm - 8:15 am
TYS
-
VIE
12h 22m
1 stop
United Airlines Logo
10:50 am - 11:59 pm
VIE
-
TYS
19h 09m
1 stop
$967United Airlines
Booking Insights

KAYAK's insights & trends for Knoxville to Austria flights

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

What is the cheapest month to fly from Knoxville to Austria?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Austria, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Knoxville to Austria is April, when tickets cost $0 (return) on average. On the other hand, the most expensive months are June and March, when the average cost of round-trip tickets is $1,502 and $1,099 respectively.

Good to know

Low seasonFebruary
Cheapest flight$439
Best time to beat the crowds with an average 49% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Knoxville to Vienna

FAQs - booking Austria flights

  • How does KAYAK find such low prices on flights from Knoxville to Austria?

    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 Austria.

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

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

    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 Austria 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 Austria?

    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 Austria up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Knoxville to Austria

 
Need help choosing which airline to fly with from Knoxville to Austria? 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 9860 reviews
7.3Comfort
6.7Food
7.7Boarding
8.1Crew
7.1Entertainment
Airline reviews

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

4.0 OkayDavid, Jun 2026
FAR - DEN
Read more United Airlines reviews

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airline tickets are not cheap. You expect reliable competent service. Thanks to canceled flights and botched transfers we arrived at our destination two days late. This is not acceptable

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

We sat in our seats on the tarmac for almost 3 hours due to storms. They would not give us water or a snack. We were to depart at 7.30 pm and it was about 10.30 when we took off. No dinner until much after that. Beef type noodle dish was terrible with about a teaspoon of beef in it. The breakfast sweet waffle with egg and sausage inside was horrible. An English muffin sandwich would have been much better. Food was the worst in all of our years of traveling the world.

Our screen kept turning off ...3 times...had to get crew attention to turn it on again

They messed up my seat so I didn’t get the one I paid for

Put me on standby; flight was late; missed my connecting flight; disaster

Flight attendants were fine, seats a bit hard but I use a cushion for extra support. The only issue was it was a bit too cool and I needed to ask for and received and extra blanket. I survived!!!

Very few things and/or people are excellent. It was very good.

Extremely uncomfortable seats. Experience was like a Frontier Airlines flight. Would not fly it again.

Very, very tight legroom. They must’ve jammed in an additional few rows of seat seating. Denver to Munich was the least legroom I’ve ever had on any flight, let alone a multi hour international journey. I will not take that flight again.

In my first flight with Air Canada we sat in the plane for 4:00pm to 6:30pm. Finally we were asked to get off the plane and we were told the flight was cancelled after 7:00pm There was o clear explanation of what was the problem. I was booked without my permission on a Delta Flight at 7:30pm that was leaving at 8:00pm and I still had to go get my luggage(my final destination was Rome with one stop in Toronto. The luggage claim for Canada was closed so had to return to finally get it on the luggage belt.. Of course I missed the Delta flight and all the next day flights were booked. I also lost what I paid for my stay in Rome because I did nt cancel in time. A complete nightmare.

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

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

Information on your arrival and departure airports