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$581+ 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
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
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

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 septiembre 11, 2025.

Round-trip from

$1,085
(FlightHub)

One-way from

$581
(FlightHub)

Popular in

December

Cheapest in

August

Average price

$1,328
From Indianapolis to Sydney Kingsford Smith
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One-way flight from Indianapolis to Sydney Kingsford Smith
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Highest demand for flights based on searches. 5% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 septiembre 11, 2025.

This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/265:11 pmIND - SYD
2 stops24h 09mQantas Airways
mié. 12/172:05 pmSYD - IND
1 stop20h 01mQantas Airways
Deal found 9/10$1,085
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/134:22 pmIND - SYD
1 stop24h 43mQantas Airways
lun. 9/159:10 amSYD - IND
1 stop22h 29mQantas Airways
Deal found 9/9$1,089
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/259:00 amIND - SYD
2 stops32h 35mAir Canada
sáb. 11/110:20 amSYD - IND
2 stops24h 39mAir Canada
Deal found 9/10$1,113
This Gotogate deal was found by Cheapflights users on 9/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/2612:38 pmIND - SYD
2 stops28h 57mAir Canada
dom. 11/211:20 amSYD - IND
2 stops27h 10mAir Canada
Deal found 9/11$1,114
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/266:30 pmIND - SYD
1 stop22h 35mQantas Airways
jue. 10/1610:10 amSYD - IND
1 stop22h 40mQantas Airways
Deal found 9/10$1,136
This Qantas Airways deal was found by Cheapflights users on 9/10. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/304:24 pmIND - SYD
1 stop25h 36mQantas Airways
sáb. 11/157:15 pmSYD - IND
2 stops38h 57mQantas Airways
Deal found 9/10$1,165
This Air Canada deal was found by Cheapflights users on 9/10. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/302:20 pmIND - SYD
2 stops27h 15mMultiple Airlines
sáb. 11/1511:20 amSYD - IND
2 stops24h 39mMultiple Airlines
Deal found 9/10$1,170
This Air Canada deal was found by Cheapflights users on 9/11. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/86:51 pmIND - SYD
2 stops46h 29mAir Canada
mié. 10/1510:20 amSYD - IND
2 stops26h 58mAir Canada
Deal found 9/11$1,178
This Delta deal was found by Cheapflights users on 9/11. 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.
vie. 9/265:00 pmIND - SYD
1 stop23h 35mDelta
jue. 10/1610:25 amSYD - IND
2 stops28h 04mDelta
Deal found 9/11$1,182
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/95:11 pmIND - SYD
1 stop22h 14mQantas Airways
mar. 11/1811:20 amSYD - IND
1 stop21h 46mQantas Airways
Deal found 9/10$1,186
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/167:02 pmIND - SYD
2 stops33h 43mAlaska Airlines
mar. 10/289:40 pmSYD - IND
2 stops35h 16mAlaska Airlines
Deal found 9/9$1,191
This Air Canada deal was found by Cheapflights users on 9/11. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/82:25 pmIND - SYD
2 stops26h 55mMultiple Airlines
mié. 10/1510:20 amSYD - IND
2 stops49h 41mMultiple Airlines
Deal found 9/11$1,227

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 septiembre 11, 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

sáb. 1/24

4:40 pm-1:55 pm

2 stops29h 15m

Sydney Kingsford Smith

sáb. 2/7

2:05 pm-5:33 pm

1 stop19h 28m

$1,108

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

jue. 10/30

4:24 pm-9:00 am

1 stop25h 36m

Sydney Kingsford Smith

sáb. 11/15

7:15 pm-6:12 pm

2 stops38h 57m

$1,165

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

jue. 2/12

4:36 pm-7:25 am

1 stop22h 49m

Sydney Kingsford Smith

jue. 2/26

7:15 pm-4:54 pm

2 stops37h 39m

$1,172

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

vie. 9/26

5:00 pm-6:35 am

1 stop23h 35m

Sydney Kingsford Smith

jue. 10/16

10:25 am-10:53 pm

2 stops27h 28m

$1,182

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

jue. 10/16

7:02 pm-7:45 pm

2 stops33h 43m

Sydney Kingsford Smith

mar. 10/28

9:40 pm-5:56 pm

2 stops35h 16m

$1,191

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

mié. 11/12

6:45 am-9:15 am

2 stops34h 30m

Sydney Kingsford Smith

lun. 12/1

11:50 am-3:29 pm

1 stop19h 39m

$1,229

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

lun. 12/1

4:30 pm-9:05 am

2 stops24h 35m

Sydney Kingsford Smith

lun. 12/8

11:50 am-3:46 pm

1 stop19h 56m

$1,229

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

jue. 11/13

11:45 am-7:00 am

1 stop27h 15m

Sydney Kingsford Smith

lun. 12/1

11:50 am-11:44 pm

1 stop27h 54m

$1,229

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

sáb. 11/15

11:45 am-7:00 am

1 stop27h 15m

Sydney Kingsford Smith

vie. 11/28

12:10 pm-5:00 pm

1 stop20h 50m

$1,230

IndianapolisSydney

IND - SYD

INDSYD

Indianapolis

vie. 11/21

7:15 am-9:35 am

2 stops34h 20m

$581

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 15 results
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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 August 29, 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, February is the cheapest month in which you can book a flight from Indianapolis to Sydney (average of $1,035). Flying from Indianapolis to Sydney in December is currently the most expensive (average of $1,626). 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 septiembre 11, 2025.

It’s optimal to fly from Indianapolis to Sydney in the evening. By choosing this option you can save up to 35% 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 at noon 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 septiembre 11, 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
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Qantas Airways
7.5
Good
905 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 Delta fly from Indianapolis to Sydney in about 23h 35m. The time it takes to get you to your destination can typically vary by up to 5h 40m. 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 ($896) offers the cheapest pricing from Indianapolis to Sydney. Air Canada is currently priced 39% 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, February is the cheapest month in which you can book a flight from Indianapolis to Sydney (average of $1,035). Flying from Indianapolis to Sydney in December is currently the most expensive (average of $1,626). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$835Average$1,085FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$882Average$1,414FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$896Average$1,230FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$904Average$1,307FlexibilityNo cancel feeOn-time74%
DeltaCheapest$964Average$1,133FlexibilityNo cancel feeOn-timeN/A

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