HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sydney

$572+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SYD
Dec 17 — Dec 241
Wed 12/17
Wed 12/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Knoxville to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 November 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,324
(American Airlines)

One-way from

$572
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$1,262
Provider with most accurate pricing for Knoxville McGhee Tyson-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Sydney Kingsford Smith flights.
Search Deals
From Knoxville McGhee Tyson to Sydney Kingsford Smith
Search Deals
One-way flight from Knoxville McGhee Tyson to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($230 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 17, 2025.

This American Airlines deal was found by Cheapflights users on 11/15. 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.
Sun 12/76:20 pmTYS - SYD
2 stops22h 40mAmerican Airlines
Sun 12/1411:20 amSYD - TYS
2 stops26h 20mAmerican Airlines
Deal found 11/15$1,327
This United Airlines deal was found by Cheapflights users on 11/17. 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 12/104:59 pmTYS - SYD
1 stop22h 01mUnited Airlines
Wed 12/1711:50 amSYD - TYS
1 stop22h 19mUnited Airlines
Deal found 11/17$2,113
This United Airlines deal was found by Cheapflights users on 11/17. 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
1 stop27h 18mUnited Airlines
Mon 12/2211:50 amSYD - TYS
1 stop22h 20mUnited Airlines
Deal found 11/17$2,163
This United Airlines deal was found by Cheapflights users on 11/17. 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 12/129:10 amTYS - SYD
2 stops31h 55mUnited Airlines
Sun 12/2111:50 amSYD - TYS
1 stop24h 00mUnited Airlines
Deal found 11/17$2,167
This United Airlines deal was found by Cheapflights users on 11/17. 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 12/114:59 pmTYS - SYD
1 stop22h 01mUnited Airlines
Sat 12/2011:50 amSYD - TYS
1 stop22h 20mUnited Airlines
Deal found 11/17$2,213
This United Airlines deal was found by Cheapflights users on 11/17. 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 12/127:05 amTYS - SYD
1 stop31h 55mUnited Airlines
Fri 12/1911:50 amSYD - TYS
1 stop22h 20mUnited Airlines
Deal found 11/17$2,363
This Delta deal was found by Cheapflights users on 11/17. 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.
Fri 12/125:40 amTYS - SYD
2 stops34h 50mDelta
Thu 12/1810:40 amSYD - TYS
2 stops24h 12mDelta
Deal found 11/17$2,387
This United Airlines deal was found by Cheapflights users on 11/17. 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 12/1211:42 amTYS - SYD
1 stop27h 18mUnited Airlines
Thu 12/1811:50 amSYD - TYS
1 stop27h 52mUnited Airlines
Deal found 11/17$2,683
This United Airlines deal was found by Cheapflights users on 11/17. 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 12/154:59 pmTYS - SYD
1 stop22h 01mUnited Airlines
Mon 12/2211:50 amSYD - TYS
1 stop22h 20mUnited Airlines
Deal found 11/17$2,733

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 November 17, 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

Fri 2/6

4:41 pm-6:55 am

1 stop22h 14m

Sydney Kingsford Smith

Mon 2/16

2:05 pm-5:30 pm

1 stop19h 25m

$1,324

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sat 2/7

12:21 pm-6:55 am

1 stop26h 34m

Sydney Kingsford Smith

Mon 2/16

2:05 pm-11:53 pm

1 stop25h 48m

$1,324

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sat 2/7

12:21 pm-6:55 am

1 stop26h 34m

Sydney Kingsford Smith

Sat 3/7

2:05 pm-12:13 am

1 stop26h 08m

$1,324

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sun 12/7

12:06 pm-6:55 am

1 stop26h 49m

Sydney Kingsford Smith

Sun 12/14

11:20 am-9:36 pm

2 stops26h 16m

$1,328

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Tue 3/24

11:10 am-9:00 am

2 stops30h 50m

Sydney Kingsford Smith

Fri 3/27

11:20 am-12:04 am

2 stops27h 44m

$1,527

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 2/2

7:35 am-6:10 am

2 stops54h 35m

$572

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sun 11/23

6:30 am-9:50 am

3 stops59h 20m

$607

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 2/6

2:57 pm-9:00 am

2 stops26h 03m

$611

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 2/2

4:41 pm-6:55 am

1 stop22h 14m

$612

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sat 11/29

6:00 am-6:55 am

3 stops32h 55m

$893

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 11 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 November.
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.

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 November 17, 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
9,014 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

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
9,014 reviews
United Airlines
7.4
Good
9,014 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

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
11,049 reviews
United Airlines
7.4
Good
9,014 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

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 22h 14m. American Airlines provides one of the quickest options available for as low as $1,324. 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 34% 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Memphis to Sydney flights
Nashville to Sydney flights
Blountville to Sydney flights
Nashville to Coolangatta flights

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 November 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$825Average$1,156FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$901Average$1,109FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.