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$588+ Cheap flights from Knoxville (TYS) to Sydney (SYD)

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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SYD
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Knoxville to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,231
(United Airlines)

One-way from

$588
(American Airlines)

Popular in

December

Cheapest in

July

Average price

$1,300
Provider with most accurate pricing for Knoxville McGhee Tyson-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Sydney Kingsford Smith flights.
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From Knoxville McGhee Tyson to Sydney Kingsford Smith
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One-way flight from Knoxville McGhee Tyson to Sydney Kingsford Smith
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Highest demand for flights based on searches. 16% potential increase in price ($243 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($60 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Knoxville to Sydney

Cheapest flights from Knoxville to Sydney
Explore the most affordable flight options available from Knoxville to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This United Airlines deal was found by Cheapflights users on 10/30. 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.
Sat 11/225:52 pmTYS - SYD
2 stops45h 08mUnited Airlines
Tue 12/211:20 amSYD - TYS
2 stops24h 34mUnited Airlines
Deal found 10/30$1,283
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/134:25 pmTYS - SYD
1 stop22h 35mUnited Airlines
Mon 11/1711:50 amSYD - TYS
1 stop27h 54mUnited Airlines
Deal found 10/28$1,313
This Ovago deal was found by Cheapflights users on 10/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:00 amTYS - SYD
2 stops35h 30mAir New Zealand
Sun 11/307:15 pmSYD - TYS
2 stops44h 29mAir New Zealand
Deal found 10/28$1,619
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:25 amTYS - SYD
2 stops29h 05mDelta
Mon 11/1710:40 amSYD - TYS
2 stops24h 22mDelta
Deal found 10/27$1,657
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 11/2212:09 pmTYS - SYD
2 stops28h 51mAmerican Airlines
Mon 12/17:20 amSYD - TYS
2 stops26h 08mAmerican Airlines
Deal found 10/28$1,949
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 11/224:50 pmTYS - SYD
2 stops46h 10mUnited Airlines
Mon 12/111:50 amSYD - TYS
1 stop27h 54mUnited Airlines
Deal found 10/28$2,117
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Mon 11/247:00 amTYS - SYD
1 stop32h 00mUnited Airlines
Sun 11/3011:20 amSYD - TYS
2 stops41h 57mUnited Airlines
Deal found 10/28$2,141
This Air Canada deal was found by Cheapflights users on 10/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2210:50 amTYS - SYD
3 stops30h 45mMultiple Airlines
Tue 12/211:20 amSYD - TYS
2 stops27h 10mMultiple Airlines
Deal found 10/30$2,405
This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/225:45 amTYS - SYD
3 stops35h 50mAir Canada
Mon 12/111:20 amSYD - TYS
3 stops28h 39mAir Canada
Deal found 10/28$2,621
This Priceline deal was found by Cheapflights users on 10/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2412:09 pmTYS - SYD
1 stop26h 46mQantas Airways
Sun 11/302:05 pmSYD - TYS
1 stop25h 47mQantas Airways
Deal found 10/28$2,956

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Sydney 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 October 30, 2025.
Use the filters below to find and compare flights from Knoxville to Sydney that are best for you.

Fly from

Knoxville

Fly to

Sydney

Route

Depart

Return

Price

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Wed 3/11

11:42 am-7:00 am

1 stop28h 18m

Sydney Kingsford Smith

Wed 3/25

11:50 am-11:48 pm

1 stop26h 58m

$1,231

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Tue 3/10

5:07 pm-7:00 am

1 stop22h 53m

Sydney Kingsford Smith

Fri 3/27

11:50 am-11:48 pm

1 stop26h 58m

$1,231

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 3/9

11:42 am-7:00 am

1 stop28h 18m

Sydney Kingsford Smith

Wed 3/25

11:50 am-11:48 pm

1 stop26h 58m

$1,231

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Wed 3/11

5:07 pm-9:05 am

2 stops24h 58m

Sydney Kingsford Smith

Thu 3/26

10:20 am-6:09 pm

2 stops22h 49m

$1,235

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 3/9

5:07 pm-9:05 am

2 stops24h 58m

Sydney Kingsford Smith

Mon 3/23

11:50 am-7:54 pm

1 stop23h 04m

$1,235

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sun 3/8

4:25 pm-9:05 am

2 stops25h 40m

Sydney Kingsford Smith

Tue 3/24

2:00 pm-10:27 pm

2 stops23h 27m

$1,235

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sun 3/8

5:07 pm-9:05 am

2 stops24h 58m

Sydney Kingsford Smith

Mon 3/23

11:50 am-8:54 pm

2 stops24h 04m

$1,235

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sun 3/8

5:07 pm-9:05 am

2 stops24h 58m

Sydney Kingsford Smith

Wed 3/25

11:50 am-11:48 pm

1 stop26h 58m

$1,235

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 3/9

5:07 pm-9:05 am

2 stops24h 58m

Sydney Kingsford Smith

Thu 3/26

12:10 pm-10:27 pm

2 stops25h 17m

$1,235

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 2/6

12:19 pm-6:55 am

1 stop26h 36m

$588

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 15 results
1
2

Compare providers for flights from Knoxville to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Sydney in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Knoxville-Sydney flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Knoxville-Sydney flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Knoxville-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Sydney flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Knoxville to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney 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 Sydney

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

Currently, July is the cheapest month in which you can book a flight from Knoxville to Sydney (average of $546). Flying from Knoxville to Sydney in October is currently the most expensive (average of $1,269). 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.

How much does it cost to fly round-trip from Knoxville to Sydney?

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated October 30, 2025.
See what other customers who have flown with United Airlines and American Airlines from Knoxville to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,998 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,998 reviews
United Airlines
7.4
Good
8,998 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,035 reviews
United Airlines
7.4
Good
8,998 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

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

  • How long is the flight from Knoxville to Sydney?

    A quick flight from Knoxville to Sydney can take about 28h 18m. United Airlines provides one of the quickest options available for as low as $1,231. There are 9343 mi between Knoxville and Sydney.

  • What are the cheapest airlines flying from Knoxville to Sydney round-trip?

    Cheapflights users have booked flights from Knoxville to Sydney round-trip from $825. Another airline that can offer you cheap pricing is American Airlines. Users have found that United Airlines is 35% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Knoxville to Sydney 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 Sydney?

    Currently, July is the cheapest month in which you can book a flight from Knoxville to Sydney (average of $546). Flying from Knoxville to Sydney in October is currently the most expensive (average of $1,269). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly
Coogee

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Alternative routes for Knoxville to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Knoxville to Sydney

Discover the top 2 airlines that operate flights from Knoxville to Sydney. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$825Average$1,156FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$901Average$1,109FlexibilityNo cancel feeOn-time71%

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