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$515+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SYD
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$884
(United Airlines)

One-way from

$515
(United Airlines)

Popular in

October

Cheapest in

April

Average price

$1,286
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. 15% potential increase in price ($251 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This United Airlines deal was found by Cheapflights users on 6/30. 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 11/14:55 pmTYS - SYD
2 stops47h 05mUnited Airlines
Wed 11/1211:50 amSYD - TYS
2 stops26h 31mUnited Airlines
Deal found 6/30$830
This American Airlines deal was found by Cheapflights users on 7/3. 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 8/173:04 pmTYS - SYD
2 stops26h 01mAmerican Airlines
Sun 8/249:10 amSYD - TYS
2 stops24h 35mAmerican Airlines
Deal found 7/3$909
This Air New Zealand deal was found by Cheapflights users on 7/1. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:07 pmTYS - SYD
2 stops25h 23mMultiple Airlines
Sat 12/1311:45 amSYD - TYS
3 stops27h 33mMultiple Airlines
Deal found 7/1$1,664
This BYOjet deal was found by Cheapflights users on 6/30. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/15:45 amTYS - SYD
3 stops35h 50mAir Canada
Wed 11/1211:20 amSYD - TYS
3 stops28h 39mAir Canada
Deal found 6/30$1,840
This Gurufare deal was found by Cheapflights users on 7/2. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:24 pmTYS - SYD
1 stop21h 31mQantas Airways
Fri 10/101:10 pmSYD - TYS
1 stop19h 22mQantas Airways
Deal found 7/2$2,047

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 July 3, 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

Sat 8/16

5:46 pm-7:00 am

2 stops23h 14m

Sydney Kingsford Smith

Sat 8/23

9:30 am-10:30 pm

2 stops27h 00m

$884

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sun 8/17

3:04 pm-7:05 am

2 stops26h 01m

Sydney Kingsford Smith

Sun 8/24

9:10 am-7:45 pm

2 stops24h 35m

$909

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sat 8/23

6:04 pm-6:55 am

2 stops22h 51m

Sydney Kingsford Smith

Sat 9/6

6:25 am-9:00 pm

3 stops28h 35m

$2,214

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Sat 8/16

6:39 pm-6:55 am

1 stop22h 16m

Sydney Kingsford Smith

Sat 8/23

12:10 pm-5:49 pm

1 stop19h 39m

$2,304

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Thu 9/4

5:45 am-7:20 am

3 stops35h 35m

Sydney Kingsford Smith

Fri 9/19

9:20 am-11:57 pm

3 stops28h 37m

$2,755

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Thu 7/24

7:43 pm-9:35 am

3 stops47h 52m

Sydney Kingsford Smith

Thu 8/7

11:50 am-6:58 pm

3 stops45h 08m

$3,422

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 8/15

7:00 am-7:00 am

2 stops34h 00m

$515

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 8/15

12:20 pm-6:55 am

1 stop28h 35m

$518

KnoxvilleSydney

TYS - SYD

TYSSYD

Knoxville McGhee Tyson

Fri 8/15

2:23 pm-7:30 am

3 stops27h 07m

$1,453

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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, February is the cheapest month in which you can book a flight from Knoxville to Sydney (average of $1,040). Flying from Knoxville to Sydney in December is currently the most expensive (average of $1,630). 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 July 3, 2025.
See what other customers who have flown with Qantas Airways, LATAM Airlines, and United 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.
Qantas Airways
7.5
Good
868 reviews

Boarding

7.7

Entertainment

7.2

Comfort

7.4

Food

6.9

Overall

7.5

Crew

8.2

Reviews

1 / 20
4.0
Okay

Hendrik Bernardus,May 2025

SYD - PER

These economy class seats must be as cramped as they can possibly get? It's almost impossible for two adults to sit next to each other. The blonde Australian air hostess at the back was rude. Despite Qantas' bad service overall I've now had a few experiences where the attitude of the team on board just makes up for their flights always being late. This was not one of those flights. The ice cream is a nice touch!
Qantas Airways
7.5
Good
868 reviews
Qantas Airways
7.5
Good
868 reviews

Boarding

7.7

Entertainment

7.2

Comfort

7.4

Food

6.9

Overall

7.5

Crew

8.2

Reviews

1 / 20
4.0
Okay

Hendrik Bernardus,May 2025

SYD - PER

These economy class seats must be as cramped as they can possibly get? It's almost impossible for two adults to sit next to each other. The blonde Australian air hostess at the back was rude. Despite Qantas' bad service overall I've now had a few experiences where the attitude of the team on board just makes up for their flights always being late. This was not one of those flights. The ice cream is a nice touch!
LATAM Airlines
7.5
Good
1,805 reviews
Qantas Airways
7.5
Good
868 reviews

Boarding

7.7

Entertainment

7.2

Comfort

7.4

Food

6.9

Overall

7.5

Crew

8.2

Reviews

1 / 20
4.0
Okay

Hendrik Bernardus,May 2025

SYD - PER

These economy class seats must be as cramped as they can possibly get? It's almost impossible for two adults to sit next to each other. The blonde Australian air hostess at the back was rude. Despite Qantas' bad service overall I've now had a few experiences where the attitude of the team on board just makes up for their flights always being late. This was not one of those flights. The ice cream is a nice touch!
United Airlines
7.4
Good
8,861 reviews
Qantas Airways
7.5
Good
868 reviews

Boarding

7.7

Entertainment

7.2

Comfort

7.4

Food

6.9

Overall

7.5

Crew

8.2

Reviews

1 / 20
4.0
Okay

Hendrik Bernardus,May 2025

SYD - PER

These economy class seats must be as cramped as they can possibly get? It's almost impossible for two adults to sit next to each other. The blonde Australian air hostess at the back was rude. Despite Qantas' bad service overall I've now had a few experiences where the attitude of the team on board just makes up for their flights always being late. This was not one of those flights. The ice cream is a nice touch!
American Airlines
7.2
Good
10,000 reviews
Qantas Airways
7.5
Good
868 reviews

Boarding

7.7

Entertainment

7.2

Comfort

7.4

Food

6.9

Overall

7.5

Crew

8.2

Reviews

1 / 20
4.0
Okay

Hendrik Bernardus,May 2025

SYD - PER

These economy class seats must be as cramped as they can possibly get? It's almost impossible for two adults to sit next to each other. The blonde Australian air hostess at the back was rude. Despite Qantas' bad service overall I've now had a few experiences where the attitude of the team on board just makes up for their flights always being late. This was not one of those flights. The ice cream is a nice touch!
Air Canada
7.1
Good
9,681 reviews
Qantas Airways
7.5
Good
868 reviews

Boarding

7.7

Entertainment

7.2

Comfort

7.4

Food

6.9

Overall

7.5

Crew

8.2

Reviews

1 / 20
4.0
Okay

Hendrik Bernardus,May 2025

SYD - PER

These economy class seats must be as cramped as they can possibly get? It's almost impossible for two adults to sit next to each other. The blonde Australian air hostess at the back was rude. Despite Qantas' bad service overall I've now had a few experiences where the attitude of the team on board just makes up for their flights always being late. This was not one of those flights. The ice cream is a nice touch!

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.

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

    Cheapflights users have booked flights from Knoxville to Sydney round-trip from $884. Other airlines that can offer you cheap pricing are American Airlines, from $909, and Qantas Airways, from $2,304. 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, February is the cheapest month in which you can book a flight from Knoxville to Sydney (average of $1,040). Flying from Knoxville to Sydney in December is currently the most expensive (average of $1,630). 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 Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Wollongong
Parramatta
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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$825Average$1,308FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$951Average$1,291FlexibilityNo cancel feeOn-time71%

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