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$527+ Cheap flights from Knoxville (TYS) to Australia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SYD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Knoxville to Australia

Keep the following information in mind while searching for Knoxville to Australia flight deals. Data was last updated September 16, 2025.

Round-trip from

$983
(United Airlines)

One-way from

$527
(United Airlines)

Popular in

October

Cheapest in

July

Average price

$931
From Knoxville McGhee Tyson to Australia
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One-way flight from Knoxville McGhee Tyson to Australia
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Highest demand for flights based on searches. 6% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($70 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Knoxville to Australia

Cheapest flights from Knoxville to Australia
Explore the most affordable flight options available from Knoxville to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/74:59 pmTYS - SYD
1 stop22h 01mUnited Airlines
Wed 12/1711:50 amSYD - TYS
1 stop27h 54mUnited Airlines
Deal found 9/16$983
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/74:59 pmTYS - SYD
1 stop22h 01mUnited Airlines
Mon 12/2211:50 amSYD - TYS
2 stops26h 49mUnited Airlines
Deal found 9/16$987
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/71:52 pmTYS - SYD
2 stops27h 13mUnited Airlines
Tue 12/2311:20 amSYD - TYS
2 stops43h 40mUnited Airlines
Deal found 9/16$1,002
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/192:07 pmTYS - SYD
2 stops26h 58mAmerican Airlines
Sun 9/219:30 pmSYD - TYS
2 stops26h 26mAmerican Airlines
Deal found 9/15$1,176
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/79:10 amTYS - SYD
1 stop29h 50mUnited Airlines
Sun 12/2111:50 amSYD - TYS
1 stop27h 52mUnited Airlines
Deal found 9/16$1,223
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/104:30 pmTYS - SYD
2 stops24h 45mUnited Airlines
Wed 12/1711:20 amSYD - TYS
2 stops22h 49mUnited Airlines
Deal found 9/16$1,227
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/104:30 pmTYS - SYD
2 stops24h 45mUnited Airlines
Tue 12/2311:20 amSYD - TYS
2 stops38h 57mUnited Airlines
Deal found 9/16$1,242
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/74:59 pmTYS - SYD
1 stop22h 01mUnited Airlines
Fri 12/1912:10 pmSYD - TYS
2 stops23h 40mUnited Airlines
Deal found 9/14$1,245
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:42 amTYS - SYD
2 stops29h 33mUnited Airlines
Tue 12/2311:20 amSYD - TYS
2 stops38h 57mUnited Airlines
Deal found 9/16$1,260
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:58 amTYS - SYD
2 stops26h 22mUnited Airlines
Tue 1/1311:50 amSYD - TYS
1 stop22h 15mUnited Airlines
Deal found 9/15$1,263
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/711:42 amTYS - SYD
1 stop27h 18mUnited Airlines
Sat 12/2012:10 pmSYD - TYS
2 stops39h 01mUnited Airlines
Deal found 9/16$1,265
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/108:40 amTYS - BNE
2 stops31h 50mUnited Airlines
Thu 10/1610:30 amBNE - TYS
2 stops42h 41mUnited Airlines
Deal found 9/16$1,518

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Australia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Knoxville to Australia that are best for you.

Fly from

Knoxville

Fly to

Australia

Route

Depart

Return

Price

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sun 12/7

9:10 am-7:00 am

1 stop29h 50m

Sydney Kingsford Smith

Mon 12/22

11:50 am-11:42 pm

1 stop27h 52m

$983

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sun 12/7

4:59 pm-7:00 am

1 stop22h 01m

Sydney Kingsford Smith

Wed 12/17

11:50 am-6:09 pm

1 stop22h 19m

$983

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Tue 12/9

4:59 pm-7:00 am

1 stop22h 01m

Sydney Kingsford Smith

Thu 12/18

11:20 am-11:42 pm

2 stops28h 22m

$987

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Tue 12/9

10:50 am-9:05 am

2 stops30h 15m

Sydney Kingsford Smith

Wed 12/17

11:50 am-6:09 pm

1 stop22h 19m

$987

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 12/8

1:52 pm-9:05 am

2 stops27h 13m

Sydney Kingsford Smith

Mon 12/22

11:50 am-10:39 pm

2 stops26h 49m

$987

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 12/8

4:30 pm-9:05 am

2 stops24h 35m

Sydney Kingsford Smith

Thu 12/18

11:20 am-10:29 pm

2 stops27h 09m

$987

KnoxvilleBrisbane

TYS - BNE

TYSBNE

Knoxville McGhee Tyson

Thu 3/12

8:45 am-6:30 am

2 stops55h 45m

Brisbane

Mon 3/16

10:40 am-1:20 pm

2 stops40h 40m

$998

KnoxvilleBrisbane

TYS - BNE

TYSBNE

Knoxville McGhee Tyson

Thu 3/12

6:20 pm-5:30 am

1 stop21h 10m

Brisbane

Mon 3/16

8:40 am-2:05 pm

1 stop19h 25m

$2,450

KnoxvilleDarwin

TYS - DRW

TYSDRW

Knoxville McGhee Tyson

Thu 11/13

6:18 pm-4:05 pm

2 stops55h 17m

Darwin

Sun 11/16

12:45 am-12:08 am

2 stops37h 53m

$3,135

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sat 2/21

1:53 pm-9:05 am

2 stops27h 12m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 14 results
1
2

Best time to book a flight from Knoxville to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Knoxville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Knoxville to Australia?

Currently, March is the cheapest month in which you can book a flight from Knoxville to Australia (average of $1,032). Flying from Knoxville to Australia in December is currently the most expensive (average of $1,627). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TYS to AU?

Find hourly flight availability from Knoxville to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Knoxville to Australia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Australia. Reviews last updated September 16, 2025.
Read through reviews of airlines operating flights from Knoxville to Australia, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Knoxville to Australia?

    Located just 11.3 mi from the city center, Knoxville McGhee Tyson (TYS) is the airport most travelers will use when flying to Australia from Knoxville.

  • How long is the flight from Knoxville to Australia?

    A quick flight from Knoxville to Australia can take about 21h 10m. United Airlines provides one of the quickest options available for as low as $2,450. Knoxville and Australia are separated by a distance of 9067 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Knoxville to Australia?

    While some choose either Knoxville McGhee Tyson - Brisbane or Knoxville McGhee Tyson - Darwin, Knoxville McGhee Tyson - Sydney Kingsford Smith is the most popular route from Knoxville to Australia.

  • Can I find deals for flights from Knoxville to Australia that include hotel bookings?

    Yes. In addition to deals on Knoxville to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Australia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Australia.

  • Can I find deals for business class flights from Knoxville to Australia?

    Yes. Cheapflights offers flight deals from Knoxville to Australia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Knoxville to Australia?

    Currently, March is the cheapest month in which you can book a flight from Knoxville to Australia (average of $1,032). Flying from Knoxville to Australia in December is currently the most expensive (average of $1,627). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from Knoxville to Australia

Discover the top 2 airlines that operate flights from Knoxville to Australia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$825Average$1,294FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$901Average$1,114FlexibilityNo cancel feeOn-time71%

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