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Cheap flights from Knoxville to Sydney from $827

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 11/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Knoxville to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:40 pm - 7:05 am
TYS
-
SYD
25h 25m
2 stops
American Airlines Logo
9:10 am - 9:58 pm
SYD
-
TYS
26h 48m
2 stops
$1,332American Airlines
Tue, Jun 2 - Wed, Jun 10
American Airlines Logo
1:54 pm - 7:30 am
TYS
-
SYD
27h 36m
2 stops
American Airlines Logo
9:10 am - 9:57 pm
SYD
-
TYS
26h 47m
2 stops
$1,423American Airlines
Fri, Jun 5 - Fri, Jun 19
United Airlines Logo
10:45 am - 7:00 am
TYS
-
SYD
30h 15m
2 stops
United Airlines Logo
9:30 am - 3:46 pm
SYD
-
TYS
44h 16m
2 stops
$1,455United Airlines
Fri, Aug 21 - Fri, Sep 25
Air New Zealand Logo
9:00 am - 6:55 am
TYS
-
SYD
31h 55m
2 stops
Air New Zealand Logo
10:20 am - 9:05 pm
SYD
-
TYS
25h 45m
2 stops
$1,466Air New Zealand
Sun, Sep 27 - Tue, Oct 27
Qantas Airways Logo
5:31 pm - 6:30 pm
TYS
-
SYD
58h 59m
2 stops
Qantas Airways Logo
12:00 pm - 6:20 pm
SYD
-
TYS
20h 20m
1 stop
$1,472Qantas Airways
Fri, Jul 31 - Mon, Aug 31
Qantas Airways Logo
11:43 am - 6:25 am
TYS
-
SYD
28h 42m
2 stops
Qantas Airways Logo
12:00 pm - 8:59 pm
SYD
-
TYS
22h 59m
2 stops
$1,492Qantas Airways
Fri, Jul 31 - Mon, Aug 31
Air New Zealand Logo
5:05 pm - 8:00 am
TYS
-
SYD
23h 55m
2 stops
Air New Zealand Logo
11:20 am - 7:34 pm
SYD
-
TYS
24h 14m
2 stops
$1,516Air New Zealand
Tue, Oct 6 - Fri, Nov 6
United Airlines Logo
3:25 pm - 6:55 am
TYS
-
SYD
25h 30m
2 stops
United Airlines Logo
9:30 am - 8:56 pm
SYD
-
TYS
25h 26m
2 stops
$1,532United Airlines
Sat, Jun 13 - Sat, Jun 20
Air New Zealand Logo
3:40 pm - 7:00 am
TYS
-
SYD
25h 20m
2 stops
Air New Zealand Logo
9:30 am - 12:30 am
SYD
-
TYS
29h 00m
2 stops
$1,615Air New Zealand
Fri, Aug 21 - Fri, Sep 25
Air New Zealand Logo
4:50 pm - 6:55 am
TYS
-
SYD
24h 05m
2 stops
Air New Zealand Logo
9:30 am - 10:43 pm
SYD
-
TYS
27h 13m
2 stops
$1,616Air New Zealand
Mon, Aug 24 - Thu, Sep 24

United Airlines flights from Knoxville to Sydney

Our best United Airlines deals on Knoxville to Sydney flight tickets
United Airlines
Aug 21
TYS10:45 amKnoxville McGhee Tyson
30h 15m
2 stops
SYD7:00 amSydney Kingsford Smith
Sep 25
SYD9:30 amSydney Kingsford Smith
44h 16m
2 stops
TYS3:46 pmKnoxville McGhee Tyson
$1,455
United Airlines
Jun 13
TYS3:25 pmKnoxville McGhee Tyson
25h 30m
2 stops
SYD6:55 amSydney Kingsford Smith
Jun 20
SYD9:30 amSydney Kingsford Smith
25h 26m
2 stops
TYS8:56 pmKnoxville McGhee Tyson
$1,532
United Airlines
Jun 19
TYS3:25 pmKnoxville McGhee Tyson
25h 30m
2 stops
SYD6:55 amSydney Kingsford Smith
Jun 23
SYD9:30 amSydney Kingsford Smith
25h 26m
2 stops
TYS8:56 pmKnoxville McGhee Tyson
$2,258

American Airlines flights from Knoxville to Sydney

Our best American Airlines deals on Knoxville to Sydney flight tickets
American Airlines
Jun 2
TYS3:40 pmKnoxville McGhee Tyson
25h 25m
2 stops
SYD7:05 amSydney Kingsford Smith
Jun 10
SYD9:10 amSydney Kingsford Smith
26h 48m
2 stops
TYS9:58 pmKnoxville McGhee Tyson
$1,332
American Airlines
Jun 5
TYS1:54 pmKnoxville McGhee Tyson
27h 36m
2 stops
SYD7:30 amSydney Kingsford Smith
Jun 19
SYD9:10 amSydney Kingsford Smith
26h 47m
2 stops
TYS9:57 pmKnoxville McGhee Tyson
$1,423
American Airlines
Aug 21
TYS1:46 pmKnoxville McGhee Tyson
27h 09m
1 stop
SYD6:55 amSydney Kingsford Smith
Sep 25
SYD12:00 pmSydney Kingsford Smith
21h 20m
1 stop
TYS7:20 pmKnoxville McGhee Tyson
$1,728

momondo 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, momondo users made 832,500 searches. Data last updated May 16, 2026.
Use the filters below to find and compare flights from Knoxville to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Tue 6/2

3:40 pm-7:05 am

2 stops25h 25m

Sydney Kingsford Smith

Wed 6/10

9:10 am-9:58 pm

2 stops26h 48m

$1,332

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 6/5

1:54 pm-7:30 am

2 stops27h 36m

Sydney Kingsford Smith

Fri 6/19

9:10 am-9:57 pm

2 stops26h 47m

$1,423

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 8/21

10:45 am-7:00 am

2 stops30h 15m

Sydney Kingsford Smith

Fri 9/25

9:30 am-3:46 pm

2 stops44h 16m

$1,455

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sun 9/27

9:00 am-6:55 am

2 stops31h 55m

Sydney Kingsford Smith

Tue 10/27

10:20 am-9:05 pm

2 stops25h 45m

$1,466

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 7/31

5:31 pm-6:30 pm

2 stops58h 59m

Sydney Kingsford Smith

Mon 8/31

12:00 pm-6:20 pm

1 stop20h 20m

$1,472

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 7/31

11:43 am-6:25 am

2 stops28h 42m

Sydney Kingsford Smith

Mon 8/31

12:00 pm-8:59 pm

2 stops22h 59m

$1,492
Quickest round-trip

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Tue 10/6

5:05 pm-8:00 am

2 stops23h 55m

Sydney Kingsford Smith

Fri 11/6

11:20 am-7:34 pm

2 stops24h 14m

$1,516

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sat 6/13

3:25 pm-6:55 am

2 stops25h 30m

Sydney Kingsford Smith

Sat 6/20

9:30 am-8:56 pm

2 stops25h 26m

$1,532

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 8/21

3:40 pm-7:00 am

2 stops25h 20m

Sydney Kingsford Smith

Fri 9/25

9:30 am-12:30 am

2 stops29h 00m

$1,615

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Mon 8/24

4:50 pm-6:55 am

2 stops24h 05m

Sydney Kingsford Smith

Thu 9/24

9:30 am-10:43 pm

2 stops27h 13m

$1,616

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Sydney from

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

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

What is the cheapest month to fly to Sydney?

In general, July is the cheapest month to fly from Knoxville to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $712. If you are unable to visit Sydney during the month of July, then departing from Knoxville during the month September is also very affordable. Most momondo users find prices during this month for around $931.

Can stopping save me money on Knoxville to Sydney flights?

You could potentially save up to 14% 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

25h 30m

Direct flights

None
The fastest flight from Knoxville to Sydney takes 25h 30m
There are no direct flights from Knoxville to Sydney. There are no popular flight routes from Knoxville to Sydney.
Search flight deals

Frequently asked questions about flying from Knoxville to Sydney

  • 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 25h 30m 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?

  • 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?

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 AirlinesPriceFrom $821Free CancellationRating
7.4
9,726 reviews
Search United Airlines flights
American AirlinesPriceFrom $901Free CancellationRating
7.1
11,662 reviews
Search American Airlines flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Katoomba
Wollongong
Penrith
Leura
Randwick
Lithgow
Manly
Coogee
Cronulla
Terrigal
Charlestown
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.

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