How long is the flight from Knoxville to Sydney?

A quick flight from Knoxville to Sydney can take about 49h 01m. United Airlines provides one of the quickest options available for as low as $1,181. 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.

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

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

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

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.

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.

$611+ Flights from Knoxville to Sydney

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Cheap 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 December 8, 2025.

Thu 12/119:10 amTYS - SYD

2 stops33h 20mAir New Zealand

Sat 12/137:15 pmSYD - TYS

2 stops44h 29mAir New Zealand

Deal found 12/7

$2,397

Thu 12/1112:06 pmTYS - SYD

1 stop26h 49mQantas Airways

Sat 12/137:15 pmSYD - TYS

2 stops36h 17mQantas Airways

Deal found 12/7

$3,005

Mon 12/85:24 amTYS - SYD

2 stops33h 26mMultiple Airlines

Mon 12/159:15 amSYD - TYS

2 stops43h 29mMultiple Airlines

Deal found 12/7

$23,462

Mon 12/84:22 pmTYS - SYD

1 stop22h 33mQantas Airways

Mon 12/152:05 pmSYD - TYS

1 stop19h 22mQantas Airways

Deal found 12/7

$27,491

Best flights from Knoxville to Sydney
Discover carefully curated flight deals from Knoxville to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 8, 2025.

Sat 2/71:59 pmTYS - SYD

2 stops49h 01mUnited Airlines

Mon 2/1611:50 amSYD - TYS

1 stop22h 20mUnited Airlines

Deal found 12/7

$1,181

Fri 2/64:25 pmTYS - SYD

2 stops70h 35mUnited Airlines

Mon 2/1611:20 amSYD - TYS

2 stops24h 35mUnited Airlines

Deal found 12/7

$1,182

Sat 2/71:59 pmTYS - SYD

2 stops49h 01mUnited Airlines

Sat 3/2811:50 amSYD - TYS

1 stop23h 05mUnited Airlines

Deal found 12/8

$1,231

Sat 2/71:59 pmTYS - SYD

2 stops49h 01mUnited Airlines

Sat 3/711:50 amSYD - TYS

1 stop22h 20mUnited Airlines

Deal found 12/7

$1,231

Last-minute flights from Knoxville to Sydney
Discover last-minute flight deals from Knoxville to Sydney. Data last updated December 8, 2025 and is based on user searches.

Thu 12/119:10 amTYS - SYD

2 stops33h 20mAir New Zealand

Sat 12/137:15 pmSYD - TYS

2 stops44h 29mAir New Zealand

Deal found 12/7

$2,397

Thu 12/1112:06 pmTYS - SYD

1 stop26h 49mQantas Airways

Sat 12/137:15 pmSYD - TYS

2 stops36h 17mQantas Airways

Deal found 12/7

$3,005

Sat 1/311:00 amTYS - SYD

2 stops41h 15mANA

Sat 2/79:45 pmSYD - TYS

2 stops31h 39mANA

Deal found 12/8

$2,255

Sat 1/34:12 pmTYS - SYD

2 stops24h 48mAmerican Airlines

Sat 2/72:05 pmSYD - TYS

1 stop19h 37mAmerican Airlines

Deal found 12/8

$2,261

Sat 1/38:00 amTYS - SYD

3 stops32h 00mMultiple Airlines

Sat 2/73:50 pmSYD - TYS

2 stops46h 19mMultiple Airlines

Deal found 12/8

$2,712

Sat 1/35:15 pmTYS - SYD

1 stop21h 45mUnited Airlines

Sat 2/711:50 amSYD - TYS

1 stop42h 00mUnited Airlines

Deal found 12/8

$3,223

Sat 1/35:45 amTYS - SYD

3 stops35h 50mAir Canada

Sat 2/711:20 amSYD - TYS

3 stops43h 29mAir Canada

Deal found 12/8

$3,382

Thu 1/2211:07 amTYS - SYD

2 stops30h 08mUnited Airlines

Thu 1/2911:50 amSYD - TYS

1 stop22h 15mUnited Airlines

Deal found 12/8

$1,267

Thu 1/224:55 pmTYS - SYD

1 stop22h 05mUnited Airlines

Mon 2/211:50 amSYD - TYS

1 stop46h 15mUnited Airlines

Deal found 12/7

$1,988

Thu 1/224:55 pmTYS - SYD

2 stops25h 35mMultiple Airlines

Thu 1/291:55 pmSYD - TYS

3 stops25h 49mMultiple Airlines

Deal found 12/8

$2,108

Thu 1/224:41 pmTYS - SYD

1 stop22h 14mQantas Airways

Thu 1/292:05 pmSYD - TYS

1 stop19h 37mQantas Airways

Deal found 12/8

$2,597

Fri 1/234:55 pmTYS - SYD

1 stop22h 05mUnited Airlines

Mon 2/211:50 amSYD - TYS

1 stop46h 15mUnited Airlines

Deal found 12/7

$2,388

One-way flights from Knoxville to Sydney
Search for one-way flight options from Knoxville to Sydney. Find affordable one-way fares based on user searches. Data last updated December 8, 2025.

Fri 2/612:19 pmTYS - SYD

2 stops28h 41mAmerican Airlines

Deal found 12/7

$611

Fri 2/66:59 amTYS - SYD

1 stop32h 01mUnited Airlines

Deal found 12/7

$711

Fri 2/66:51 pmTYS - SYD

3 stops29h 39mMultiple Airlines

Deal found 12/7

$1,592

Mon 4/61:53 pmTYS - SYD

2 stops27h 02mAir New Zealand

Deal found 12/8

$4,277

Mon 4/61:53 pmTYS - SYD

2 stops29h 32mANA

Deal found 12/7

$4,780

Mon 4/610:50 amTYS - SYD

2 stops30h 30mMultiple Airlines

Deal found 12/7

$5,382

Mon 4/66:21 pmTYS - SYD

1 stop22h 34mQantas Airways

Deal found 12/8

$7,234

Find flight deals from Knoxville to Sydney

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,162 (United Airlines)
One-way from	$611 (American Airlines)
Popular in	December
Cheapest in	July
Average price	$1,867

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.

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. 16% potential increase in price ($255 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($61 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sat 2/7

1:59 pm-7:00 am

2 stops49h 01m

Sydney Kingsford Smith

Mon 2/16

11:50 am-6:10 pm

1 stop22h 20m

$1,181

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 2/6

4:25 pm-7:00 am

2 stops70h 35m

Sydney Kingsford Smith

Mon 2/16

11:20 am-7:55 pm

2 stops24h 35m

$1,182

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sat 2/7

1:59 pm-7:00 am

2 stops49h 01m

Sydney Kingsford Smith

Sat 3/28

11:50 am-7:55 pm

1 stop23h 05m

$1,231

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sat 2/7

1:59 pm-7:00 am

2 stops49h 01m

Sydney Kingsford Smith

Sat 3/7

11:50 am-6:10 pm

1 stop22h 20m

$1,231

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 2/6

12:19 pm-9:00 am

2 stops28h 41m

$611

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 2/6

6:59 am-7:00 am

1 stop32h 01m

$711

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 2/6

6:51 pm-4:30 pm

3 stops29h 39m

$1,592

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 4/6

1:53 pm-6:55 am

2 stops27h 02m

$4,277

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 4/6

1:53 pm-9:25 am

2 stops29h 32m

$4,780

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 4/6

10:50 am-7:20 am

2 stops30h 30m

$5,382

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 11 results

Compare providers for flights from Knoxville to Sydney

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Sydney in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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

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

9,089 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

United Airlines

7.4

Good

9,089 reviews

United Airlines

7.4

Good

9,089 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

American Airlines

7.2

Good

11,045 reviews

United Airlines

7.4

Good

9,089 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

How long is the flight from Knoxville to Sydney?
A quick flight from Knoxville to Sydney can take about 49h 01m. United Airlines provides one of the quickest options available for as low as $1,181. 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

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Manly

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Other flights to Sydney

Top 2 airlines flying from Knoxville to Sydney

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$825	Average$1,110	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$901	Average$1,254	FlexibilityNo cancel fee	On-time71%

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$611+ 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.

Find cheap flights from Knoxville to Sydney with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Knoxville to Sydney

Cheapest flights from Knoxville to SydneyExplore 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 December 8, 2025.

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 December 8, 2025.

Find flight deals from Knoxville to Sydney

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Knoxville to Sydney that are best for you.

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 December.

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.

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?

Reviews of airlines servicing Sydney

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.

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?

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

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

How can I find direct flights from Knoxville to Sydney?

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

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

Traveling to a place near Sydney?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Knoxville to Sydney

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Top 2 airlines flying from Knoxville to Sydney

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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 December 8, 2025.