TYS - SYD

$756 Find Cheap Flights from Knoxville to Sydney

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 Sydney 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Sydney, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$1,398
Typical prices: $2,441-$1,978
American Airlines
Mon 4/27Sun 5/10
TYS - SYD • 1 stop
Cheapest one-way
$756
American Airlines
Wed 5/27
TYS - SYD • 1 stop
Top airlines
Cheapest • from $1,398 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Knoxville and Sydney. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $1,538 (round-trip)
Shortest trip • 22h 30m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 51% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Knoxville to Sydney (TYS-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to Sydney 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 Sydney

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 - Wed, Jul 29
American Airlines Logo
3:58 pm - 6:55 am
TYS
-
SYD
24h 57m
2 stops
American Airlines Logo
12:00 pm - 11:52 pm
SYD
-
TYS
25h 52m
1 stop
$1,409American Airlines
Thu, Apr 30 - Wed, Jul 29
American Airlines Logo
3:58 pm - 7:30 am
TYS
-
SYD
25h 32m
2 stops
American Airlines Logo
9:10 am - 9:59 pm
SYD
-
TYS
26h 49m
2 stops
$1,459American 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
Thu, May 7 - Thu, May 14
American Airlines Logo
10:56 am - 6:55 am
TYS
-
SYD
29h 59m
1 stop
American Airlines Logo
12:00 pm - 11:56 pm
SYD
-
TYS
25h 56m
1 stop
$1,505American Airlines
Thu, May 7 - Thu, May 14
American Airlines Logo
1:20 pm - 7:05 am
TYS
-
SYD
27h 45m
2 stops
American Airlines Logo
12:00 pm - 10:25 pm
SYD
-
TYS
24h 25m
2 stops
$1,509American Airlines
Mon, May 11 - Tue, May 26
American Airlines Logo
1:20 pm - 6:55 am
TYS
-
SYD
27h 35m
1 stop
American Airlines Logo
12:00 pm - 9:57 pm
SYD
-
TYS
23h 57m
1 stop
$1,555American Airlines
Booking Insights

KAYAK's insights & trends for Knoxville to Sydney flights

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

How much is a round-trip flight from Knoxville to Sydney?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Knoxville to Sydney departing in April.

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

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

When to book flights from Knoxville to Sydney

Are your dates flexible? Find out the best times to travel from Knoxville to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Knoxville to Sydney

  • What is the cheapest flight from Knoxville to Sydney?

    In the last 3 days, the lowest price for a flight from Knoxville to Sydney was $756 for a one-way ticket and $1,398 for a round-trip.

  • Do I need a passport to fly between Knoxville and Sydney?

    Yes

  • Which airports will I be using when flying from Knoxville to Sydney?

    Knoxville and Sydney are both served by 1 main airport. You will leave Knoxville from Knoxville McGhee Tyson and will be arriving at Sydney Kingsford Smith.

  • Which aircraft models fly most regularly from Knoxville to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Knoxville to Sydney?

    Star Alliance, and oneworld are the airline alliances operating flights between Knoxville and Sydney, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Knoxville to Sydney, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to Sydney are United Airlines and American Airlines. With an average price for the route of $1,262 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,275 and an overall rating of 7.1.

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

    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 Sydney.

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

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

    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 to Sydney with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and SYD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to Sydney?

    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 to Sydney from Knoxville 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 Sydney

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to Sydney? 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 9562 reviews
7.3Comfort
6.6Food
7.7Boarding
7.1Entertainment
8.1Crew
Airline reviews

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.

4.0 OkayAllison, Apr 2026
DCA - ORD
Read more United Airlines reviews

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.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

The flight was officially delayed 3 times, and was actually later than that. Combined, it was a 3 hour delay, but there was no recognition (miles, voucher, etc). The crew seemed stressed. The captain sounded nervous in his announcements. The flight itself was smooth and uneventful.

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.

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

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

Information on your arrival and departure airports