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$578+ Cheap flights from Indianapolis (IND) 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 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
IND — SYD
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheapflights Tip: The best prices from Indianapolis to Sydney Kingsford Smith are usually found in August or October, booked 9 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Find flight deals from Indianapolis to Sydney

Cheapest flights from Indianapolis to Sydney
Explore the most affordable flight options available from Indianapolis to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:11 pmIND - SYD
1 stop23h 49mQantas Airways
Tue 11/1811:20 amSYD - IND
1 stop21h 46mQantas Airways
Deal found 10/28$1,208
This oojo deal was found by Cheapflights users on 10/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/265:11 pmIND - SYD
1 stop23h 49mQantas Airways
Wed 12/35:50 pmSYD - IND
2 stops36h 11mQantas Airways
Deal found 10/26$1,218
This American Airlines deal was found by Cheapflights users on 10/28. 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 11/95:11 pmIND - SYD
1 stop22h 14mAmerican Airlines
Tue 11/1811:20 amSYD - IND
2 stops23h 49mAmerican Airlines
Deal found 10/28$1,251
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:15 pmIND - SYD
1 stop22h 10mQantas Airways
Sun 1/1811:20 amSYD - IND
1 stop21h 40mQantas Airways
Deal found 10/27$1,252
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/185:11 pmIND - SYD
1 stop23h 49mQantas Airways
Thu 11/2711:20 amSYD - IND
1 stop22h 23mQantas Airways
Deal found 10/27$1,254
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/184:40 pmIND - SYD
2 stops24h 20mAmerican Airlines
Thu 11/2711:20 amSYD - IND
1 stop22h 23mAmerican Airlines
Deal found 10/27$1,300
This American Airlines deal was found by Cheapflights users on 10/28. 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 12/72:56 pmIND - SYD
2 stops26h 04mAmerican Airlines
Thu 12/1811:20 amSYD - IND
1 stop21h 40mAmerican Airlines
Deal found 10/28$1,301
This Delta deal was found by Cheapflights users on 10/28. 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.
Tue 11/188:00 amIND - SYD
2 stops32h 30mDelta
Thu 11/2710:40 amSYD - IND
2 stops23h 51mDelta
Deal found 10/28$1,310
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:38 pmIND - SYD
2 stops28h 57mAir Canada
Wed 12/311:20 amSYD - IND
2 stops22h 24mAir Canada
Deal found 10/26$1,324
This Priceline deal was found by Cheapflights users on 10/26. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:11 pmIND - SYD
1 stop22h 14mQantas Airways
Wed 11/1211:20 amSYD - IND
1 stop21h 46mQantas Airways
Deal found 10/26$1,339

Cheap flight deals from Indianapolis to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Indianapolis (IND) 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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,178
(Cheapflightsfares)

One-way from

$578
(Priceline)

Popular in

July

Cheapest in

August

Average price

$1,138
Provider with most accurate pricing for Indianapolis-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Indianapolis-Sydney Kingsford Smith flights.
Search Deals
From Indianapolis to Sydney Kingsford Smith
Search Deals
One-way flight from Indianapolis to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Indianapolis 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 October 29, 2025.
Use the filters below to find and compare flights from Indianapolis to Sydney that are best for you.

Fly from

Indianapolis

Fly to

Sydney

Route

Depart

Return

Price

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

Sat 1/24

5:30 pm-9:00 am

1 stop23h 30m

Sydney Kingsford Smith

Sat 2/7

11:20 am-5:00 pm

1 stop21h 40m

$1,178

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

Wed 11/26

5:11 pm-9:00 am

1 stop23h 49m

Sydney Kingsford Smith

Wed 12/3

11:20 am-5:10 pm

1 stop21h 50m

$1,208

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

Sun 11/9

12:51 pm-7:25 am

2 stops26h 34m

Sydney Kingsford Smith

Tue 11/18

11:20 am-7:09 pm

2 stops23h 49m

$1,251

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

Mon 12/29

5:15 pm-7:25 am

1 stop22h 10m

Sydney Kingsford Smith

Sun 1/18

11:20 am-5:00 pm

1 stop21h 40m

$1,252

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

Sun 12/7

5:11 pm-9:00 am

1 stop23h 49m

Sydney Kingsford Smith

Thu 12/18

11:20 am-5:00 pm

1 stop21h 40m

$1,254

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

Tue 11/18

4:40 pm-9:00 am

2 stops24h 20m

Sydney Kingsford Smith

Thu 11/27

11:20 am-5:43 pm

1 stop22h 23m

$1,300

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

Tue 11/18

8:00 am-8:30 am

2 stops32h 30m

Sydney Kingsford Smith

Thu 11/27

10:40 am-6:31 pm

2 stops23h 51m

$1,310

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

Wed 11/26

12:38 pm-9:35 am

2 stops28h 57m

Sydney Kingsford Smith

Wed 12/3

11:20 am-5:44 pm

2 stops22h 24m

$1,324

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

Fri 11/21

5:11 pm-7:25 am

1 stop22h 14m

$578

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

Sun 11/9

12:51 pm-7:25 am

2 stops26h 34m

$578

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 18 results
1
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Compare providers for flights from Indianapolis 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 Indianapolis to Sydney in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 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 Indianapolis-Sydney flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Indianapolis-Sydney flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Indianapolis-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Indianapolis-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 Indianapolis-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 Indianapolis to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Indianapolis 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 Indianapolis to Sydney

How far ahead should I book a flight from Indianapolis to Sydney?

Use this chart to determine the optimal time to book a round-trip flight from Indianapolis to Sydney. Price data was last updated on October 24, 2025.

Booking 9 days in advance of your planned departure date is, on average, the best time to get cheap flights from Indianapolis to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from Indianapolis to Sydney (average of $405). Flying from Indianapolis to Sydney in January is currently the most expensive (average of $1,157). 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.

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

Find hourly flight availability from Indianapolis to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2025.

It’s optimal to fly from Indianapolis to Sydney in the evening. By choosing this option you can save up to 34% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Indianapolis to Sydney?

Use this chart to determine the cheapest time to fly round-trip from Indianapolis to Sydney. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Indianapolis to Sydney flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Indianapolis to Sydney?

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 October 29, 2025.
Read reviews from past customers who have flown Delta, Qantas Airways, and United Airlines from Indianapolis to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Qantas Airways
7.5
Good
924 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
9,001 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Air Canada
7.1
Good
10,371 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Indianapolis 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 Indianapolis to Sydney?

    Airlines like Qantas Airways and American Airlines fly from Indianapolis to Sydney in about 23h 30m. The time it takes to get you to your destination can typically vary by up to 3h 04m. Airlines will cover a distance of 9281 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Air Canada ($835), American Airlines ($882), and United Airlines ($883) offers the cheapest pricing from Indianapolis to Sydney. Air Canada is currently priced 36% below the average price you’ll pay for this route.

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

    Yes. In addition to deals on Indianapolis to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Indianapolis to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Indianapolis to Sydney.

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

    Yes. Cheapflights offers flight deals from Indianapolis 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 Indianapolis to Sydney?

    Currently, October is the cheapest month in which you can book a flight from Indianapolis to Sydney (average of $405). Flying from Indianapolis to Sydney in January is currently the most expensive (average of $1,157). 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

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Top 5 airlines flying from Indianapolis to Sydney

Discover the top 5 airlines that operate flights from Indianapolis 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$835Average$1,144FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$882Average$1,406FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$883Average$1,227FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$904Average$1,270FlexibilityNo cancel feeOn-time74%
DeltaCheapest$964Average$1,190FlexibilityNo cancel feeOn-timeN/A

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