$756 Find Cheap Flights from Knoxville to Australia

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 Australia departing on 5/27. 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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Cheap Flights from Knoxville to Australia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney1 stop$1,398
Brisbane
Brisbane2 stops$1,593
Adelaide
Adelaide2 stops$1,867
Sydney
Sydney1 stop$1,398
Brisbane
Brisbane2 stops$1,593
Adelaide
Adelaide2 stops$1,867

Book Cheap Knoxville to Australia 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 Australia 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 Australia

Mon, Apr 27 - Sun, May 10
American Airlines Logo
4:09 pm - 6:55 am
TYS
-
SYD
24h 46m
1 stop
American Airlines Logo
9:10 am - 6:04 pm
SYD
-
TYS
22h 54m
2 stops
$1,398American Airlines
Mon, Apr 27 - Sun, May 10
American Airlines Logo
4:09 pm - 6:55 am
TYS
-
SYD
24h 46m
1 stop
American Airlines Logo
12:00 pm - 11:56 pm
SYD
-
TYS
25h 56m
1 stop
$1,399American Airlines
Mon, Apr 27 - Wed, Jul 29
American Airlines Logo
10:56 am - 6:55 am
TYS
-
SYD
29h 59m
1 stop
American Airlines Logo
12:00 pm - 11:52 pm
SYD
-
TYS
25h 52m
1 stop
$1,405American Airlines
Mon, Apr 27 - Sun, May 10
United Airlines Logo
4:30 pm - 6:55 am
TYS
-
SYD
24h 25m
2 stops
United Airlines Logo
10:20 am - 8:45 pm
SYD
-
TYS
24h 25m
2 stops
$1,480United Airlines
Wed, May 20 - Wed, May 27
United Airlines Logo
1:52 pm - 6:55 am
TYS
-
SYD
27h 03m
2 stops
United Airlines Logo
10:20 am - 12:30 am
SYD
-
TYS
28h 10m
2 stops
$1,490United Airlines
Sat, May 30 - Sun, Jun 7
Air New Zealand Logo
7:15 am - 11:05 am
TYS
-
BNE
37h 50m
2 stops
Air New Zealand Logo
7:35 pm - 6:07 pm
BNE
-
TYS
60h 32m
2 stops
$2,014Air New Zealand
Wed, May 20 - Wed, May 27
Air New Zealand Logo
3:40 pm - 11:05 am
TYS
-
BNE
29h 25m
2 stops
Air New Zealand Logo
6:15 am - 11:12 pm
BNE
-
TYS
30h 57m
3 stops
$2,160Air New Zealand
Wed, May 20 - Wed, May 27
Multiple Airlines Logo
5:09 pm - 11:30 am
TYS
-
BNE
28h 21m
3 stops
Multiple Airlines Logo
2:25 pm - 11:13 am
BNE
-
TYS
34h 48m
3 stops
$2,450Multiple Airlines
Wed, Apr 29 - Sun, May 3
Qantas Airways Logo
4:09 pm - 12:50 am
TYS
-
DRW
43h 11m
2 stops
Qantas Airways Logo
6:00 pm - 11:56 pm
DRW
-
TYS
43h 26m
2 stops
$3,191Qantas Airways
Wed, Apr 29 - Sun, May 3
Qantas Airways Logo
4:09 pm - 12:50 am
TYS
-
DRW
43h 11m
2 stops
Qantas Airways Logo
1:05 pm - 6:04 pm
DRW
-
TYS
42h 29m
2 stops
$3,201Qantas Airways
Booking Insights

KAYAK's insights & trends for Knoxville to Australia flights

Get data-powered insights and trends into flights from Knoxville to Australia 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 Australia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Australia, 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 Australia is July, when tickets cost $712 (return) on average. On the other hand, the most expensive months are April and December, when the average cost of round-trip tickets is $2,987 and $1,867 respectively.

Good to know

Low seasonApril
Cheapest flight$756
Best time to beat the crowds but there is an average 104% increase in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Knoxville to Sydney

FAQs - booking Australia flights

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

    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 Australia.

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

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

    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 Australia 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 Australia?

    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 Australia 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 Australia

 
Need help choosing which airline to fly with from Knoxville to Australia? 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 9554 reviews
6.6Food
8.1Crew
7.1Entertainment
7.7Boarding
7.3Comfort
Airline reviews

Poor communication, flight was delayed for preventable reasons. I missed my connection.

2.0 MediocreAaron, Apr 2026
ORD - BNA
Read more United Airlines reviews

Poor communication, flight was delayed for preventable reasons. I missed my connection.

It was better than excellent. The staff in Mason City were great. The young woman that pushed my wheelchair did more than could be expected of her. She came from India 17 years ago. I don't remember her name.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

All good flight was 35 minutes early when arriving in Edinburgh

Flights were on time actually early service was good and crew cheerful

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

The boarding timing needs to be improved. The flight was delayed again because it took way too long to board. I was already exhausted from sleeping at the airport and spending all day there due to delay from my previous flight that connected in Chicago.

I had a terrible experience. My flight got delayed from Atlanta to Chicago on Monday April 6, 2026, and that led to me missing my next flight to Brussels. United Airlines didn’t provide me with any accommodation for shelter. I had to sleep at the airport in Chicago. The next flight I was put on didn’t leave until the evening hours of Tuesday 4/7/2026.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

Boarding was quick and efficient. We arrived at our destination early.

I'm not sure American is capable of on-time arrivals and departures. When you land at ORD, you almost always get held on the tarmac because your gate is still occupied. I may have missed my connection, but that ended up up being significantly delayed as well. Once again, I finally got home well after midnight.

Same plane as RDU to LGA — internet not working. Pilot issue of some sort at end of prior flight - I was on same plane for my connection. Late/delayed —

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

Message about flight cancelation was received late due to being in the air. No explanation, just canceled and booked on morning flight. We had to stay in the airport overnight because there was no transportation offered to get to the hotel that AA had available. Actual inflight was fine.

I didn't go from Reno to Phoenix I ended up going from Reno to Dallas to Tucson because my flight rebooked because my Amtrak was late I tried notifying you guys I also don't know what you ask me about my flight because you guys didn't book my flight

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Bag drop was very disorganized in Miami. All main cabin passengers were shunted to just a few lanes and they had an equal number of lanes for first class passengers but there was nobody on those lines. They did nothing to bring the main cab and passengers over to the open lines and they just had employees standing there and doing nothing

there are no options s for snack besides cookies would ve nice to have a salty option n

We did not have enough time to make our connecting flight. As a result, we were put onto a different airline for our second leg. The different airline was NOT comparable to British Airlines, and our arrival was significantly delayed. The actual flight on BA was amazing.

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

Information on your arrival and departure airports