What airlines fly to Sydney?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Sydney from Knoxville according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 3 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Knoxville McGhee Tyson to Sydney Kingsford Smith?

American Airlines and United Airlines are the most popular carriers operating from Knoxville McGhee Tyson to Sydney Kingsford Smith

When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport?

Prices for flights from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport were last updated today.

How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport?

There are 2 operators available for flights from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport as of December 2025.

How old do you have to be to fly from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$612 Cheap Flights from Knoxville to Sydney in 2025/26

Q: What is the typical price of a round-trip flight between Knoxville and Sydney?

Prices are currently low for flights on this route. Typical prices usually range from $1,587 to $1,880. The lowest price recently found on this route was $1,156.

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1:59 pm - 7:00 am

TYS

SYD

25h 01m2 stops

11:50 am - 7:55 pm

SYD

TYS

24h 05m1 stop

$1,156United Airlines

Sun, Feb 1 - Sun, Feb 15

4:25 pm - 7:00 am

TYS

SYD

46h 35m2 stops

11:50 am - 6:10 pm

SYD

TYS

22h 20m1 stop

$1,183United Airlines

Sat, Feb 7 - Mon, Feb 16

12:24 pm - 6:55 am

TYS

SYD

27h 31m1 stop

1:05 pm - 5:31 pm

SYD

TYS

19h 26m1 stop

$1,198American Airlines

Mon, Mar 9 - Mon, Mar 23

4:29 pm - 9:00 am

TYS

SYD

25h 31m2 stops

11:20 am - 11:40 pm

SYD

TYS

27h 20m2 stops

$1,200American Airlines

Mon, Mar 9 - Mon, Mar 23

6:21 pm - 6:55 am

TYS

SYD

21h 34m1 stop

11:20 am - 11:54 pm

SYD

TYS

27h 34m2 stops

$1,201American Airlines

Mon, Mar 9 - Mon, Mar 23

9:05 am - 7:00 am

TYS

SYD

29h 55m1 stop

11:50 am - 7:55 pm

SYD

TYS

24h 05m1 stop

$1,213United Airlines

Fri, Feb 6 - Mon, Feb 16

1:59 pm - 7:00 am

TYS

SYD

25h 01m2 stops

11:50 am - 8:57 pm

SYD

TYS

25h 07m2 stops

$1,218United Airlines

Fri, Feb 6 - Mon, Feb 16

1:59 pm - 7:00 am

TYS

SYD

49h 01m2 stops

11:20 am - 11:44 pm

SYD

TYS

27h 24m2 stops

$1,232United Airlines

Sat, Feb 7 - Sat, Mar 28

4:25 pm - 7:00 am

TYS

SYD

46h 35m2 stops

12:10 pm - 8:48 pm

SYD

TYS

24h 38m2 stops

$1,233United Airlines

Sat, Feb 7 - Sat, Mar 7

4:41 pm - 6:55 am

TYS

SYD

22h 14m1 stop

2:05 pm - 9:39 pm

SYD

TYS

23h 34m1 stop

$1,248American Airlines

Sun, Feb 1 - Sat, Feb 14

United Airlines flights from Knoxville to Sydney

Our best United Airlines deals on Knoxville to Sydney flight tickets

United Airlines

Feb 1

TYS11:07 amKnoxville McGhee Tyson

27h 13m

2 stops

SYD6:20 amSydney Kingsford Smith

Feb 15

SYD11:20 amSydney Kingsford Smith

22h 50m

2 stops

TYS6:10 pmKnoxville McGhee Tyson

$1,156

Find similar

United Airlines

Feb 7

TYS4:25 pmKnoxville McGhee Tyson

46h 35m

2 stops

SYD7:00 amSydney Kingsford Smith

Feb 16

SYD11:50 amSydney Kingsford Smith

22h 20m

1 stop

TYS6:10 pmKnoxville McGhee Tyson

$1,183

Find similar

United Airlines

Feb 6

TYS9:05 amKnoxville McGhee Tyson

29h 55m

1 stop

SYD7:00 amSydney Kingsford Smith

Feb 16

SYD11:50 amSydney Kingsford Smith

24h 05m

1 stop

TYS7:55 pmKnoxville McGhee Tyson

$1,213

Find similar

Air Canada flights from Knoxville to Sydney

Our best Air Canada deals on Knoxville to Sydney flight tickets

Air Canada

Feb 6

TYS9:30 amKnoxville McGhee Tyson

32h 05m

3 stops

SYD9:35 amSydney Kingsford Smith

Feb 16

SYD11:20 amSydney Kingsford Smith

42h 00m

3 stops

TYS1:20 pmKnoxville McGhee Tyson

$2,372

Find similar

Air Canada

Feb 6

TYS9:30 amKnoxville McGhee Tyson

32h 05m

3 stops

SYD9:35 amSydney Kingsford Smith

Feb 16

SYD11:20 amSydney Kingsford Smith

42h 00m

3 stops

TYS1:20 pmKnoxville McGhee Tyson

$2,467

Find similar

Air Canada

Feb 1

TYS9:30 amKnoxville McGhee Tyson

32h 05m

3 stops

SYD9:35 amSydney Kingsford Smith

Feb 14

SYD11:20 amSydney Kingsford Smith

45h 32m

3 stops

TYS4:52 pmKnoxville McGhee Tyson

$2,923

Find similar

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sun 2/1

1:59 pm-7:00 am

2 stops25h 01m

Sydney Kingsford Smith

Sun 2/15

11:50 am-7:55 pm

1 stop24h 05m

$1,156

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sat 2/7

4:25 pm-7:00 am

2 stops46h 35m

Sydney Kingsford Smith

Mon 2/16

11:50 am-6:10 pm

1 stop22h 20m

$1,183

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 3/9

12:24 pm-6:55 am

1 stop27h 31m

Sydney Kingsford Smith

Mon 3/23

1:05 pm-5:31 pm

1 stop19h 26m

$1,198

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 3/9

4:29 pm-9:00 am

2 stops25h 31m

Sydney Kingsford Smith

Mon 3/23

11:20 am-11:40 pm

2 stops27h 20m

$1,200

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 3/9

6:21 pm-6:55 am

1 stop21h 34m

Sydney Kingsford Smith

Mon 3/23

11:20 am-11:54 pm

2 stops27h 34m

$1,201

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 2/6

9:05 am-7:00 am

1 stop29h 55m

Sydney Kingsford Smith

Mon 2/16

11:50 am-7:55 pm

1 stop24h 05m

$1,213

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 2/6

1:59 pm-7:00 am

2 stops25h 01m

Sydney Kingsford Smith

Mon 2/16

11:50 am-8:57 pm

2 stops25h 07m

$1,218

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

11:20 am-11:44 pm

2 stops27h 24m

$1,232

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sat 2/7

4:25 pm-7:00 am

2 stops46h 35m

Sydney Kingsford Smith

Sat 3/7

12:10 pm-8:48 pm

2 stops24h 38m

$1,233

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sun 2/1

4:41 pm-6:55 am

1 stop22h 14m

Sydney Kingsford Smith

Sat 2/14

2:05 pm-9:39 pm

1 stop23h 34m

$1,248

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Knoxville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Knoxville and Sydney?

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Knoxville to Sydney is on a Saturday when prices can be found for as low as $1,353. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,578.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is at noon. momondo users have found flights departing from Knoxville to Sydney at noon for as low as $1,356. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the morning, with an average ticket price of $1,763. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Knoxville to Sydney flights?

You could potentially save up to 19% on your flight if you consider stops on a Knoxville to Sydney flight.

When to book flights from Knoxville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Knoxville to Sydney (TYS to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Sydney

Fastest flight time	24h 21m
Direct flights	None

The fastest flight from Knoxville to Sydney takes 24h 21m

There are no direct flights from Knoxville to Sydney. There are no popular flight routes from Knoxville to Sydney.

Search flight deals

How far is Knoxville McGhee Tyson to Sydney Kingsford Smith by plane?
Sydney Kingsford Smith is 9346.0 mi away from Knoxville McGhee Tyson. Typically, this will take 24h 21m by plane in normal conditions.
When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport?
Prices for flights from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport were last updated today.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport?
There are 2 operators available for flights from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport as of December 2025.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Knoxville to Sydney?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Knoxville to Sydney is United Airlines (70% of total bookings). The next most popular airline is American Airlines (30%).

Best airlines flying from Knoxville to Sydney

Compare and see reviews for airlines that fly from Knoxville to Sydney with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $825	Free Cancellation	Rating 7.4 9,091 reviews		Search United Airlines flights
American Airlines	PriceFrom $901	Free Cancellation	Rating 7.2 11,054 reviews		Search American Airlines flights

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Wollongong

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Coogee

Manly

Penrith

Cronulla

Lithgow

Leura

Charlestown

Terrigal

Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Knoxville to Sydney for you.

Can I find flights from Knoxville to Sydney with flexible booking policies on momondo?

momondo does allow users to show only those flights to Sydney from Knoxville which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Knoxville to Sydney?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Knoxville.

I’m not ready to book a flight from Knoxville to Sydney right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Sydney from Knoxville. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Sydney trip

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Cheap flights from Knoxville to Sydney from $612

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Sydney departing on 2/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Knoxville to Sydney

What is the typical price of a round-trip flight between Knoxville and Sydney?

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Knoxville to Sydney is on a Saturday when prices can be found for as low as $1,353. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,578.

What is the cheapest time of day to depart on your flight to Sydney?

Can stopping save me money on Knoxville to Sydney flights?

You could potentially save up to 19% on your flight if you consider stops on a Knoxville to Sydney flight.

What is the cheapest airline that flies from Knoxville McGhee Tyson to Sydney Kingsford Smith?

American Airlines and United Airlines are the most popular carriers operating from Knoxville McGhee Tyson to Sydney Kingsford Smith

What airlines fly to Sydney?

When to book flights from Knoxville to Sydney

Cheap Knoxville to Sydney (TYS to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Sydney

Fastest flight time

Direct flights

How far is Knoxville McGhee Tyson to Sydney Kingsford Smith by plane?

When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport?

How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport?

How old do you have to be to fly from Knoxville McGhee Tyson Airport to Sydney Kingsford Smith Airport?

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

What is the most popular airline from Knoxville to Sydney?

Best airlines flying from Knoxville to Sydney

Compare and see reviews for airlines that fly from Knoxville to Sydney with momondo

Traveling to a place near Sydney?

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Sydney?

Can I find flights from Knoxville to Sydney with flexible booking policies on momondo?

How can momondo help me find flights from Knoxville to Sydney?

I’m not ready to book a flight from Knoxville to Sydney right now. Can momondo alert me if prices change?

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Airports servicing New South Wales