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Cheap flights from Atlanta to Sydney from $644

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 28/10. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — SYD
3 set — 10 set1
1 adult

Cheapflights Tip: The best prices from Atlanta Hartsfield-Jackson to Sydney Kingsford Smith are usually found in March or June, booked 8 days in advance, depart on a Monday or Wednesday and return on a Thursday

Cheap flight deals from Atlanta to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Atlanta (ATL) 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 29 agosto 2025.

Round-trip from

$1,211

One-way from

$644

Popular in

December

Cheapest in

March

Average price

$1,507
Qantas Airways
  • Qantas Airways
  • 24/9-12/10
  • 2 total stops
  • 49h 00m total
  • Atlanta to Sydney
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Qantas Airways
  • Qantas Airways
  • 28/10
  • 1 total stop
  • 24h 20m total
  • Atlanta to Sydney
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($434 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($108 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Atlanta to Sydney

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

mer 24/917:35ATL - SYD
1 stop23h 30mQantas Airways
dom 12/1013:10SYD - ATL
1 stop25h 30mQantas Airways
Deal found 27/8$1,211
lun 1/917:06ATL - SYD
1 stop23h 59mQantas Airways
lun 15/912:10SYD - ATL
1 stop23h 28mQantas Airways
Deal found 28/8$1,214
sab 27/917:30ATL - SYD
1 stop24h 00mAmerican Airlines
mar 14/1010:10SYD - ATL
1 stop21h 42mAmerican Airlines
Deal found 28/8$1,248
mar 23/914:28ATL - SYD
2 stops26h 37mAmerican Airlines
mer 15/1013:10SYD - ATL
1 stop19h 22mAmerican Airlines
Deal found 28/8$1,249
lun 1/916:32ATL - SYD
2 stops24h 33mAmerican Airlines
lun 15/909:10SYD - ATL
2 stops26h 28mAmerican Airlines
Deal found 28/8$1,254
gio 18/917:30ATL - SYD
1 stop24h 00mAmerican Airlines
mar 30/909:10SYD - ATL
2 stops23h 56mAmerican Airlines
Deal found 28/8$1,255
lun 1/918:12ATL - SYD
2 stops22h 53mAmerican Airlines
dom 14/909:10SYD - ATL
1 stop22h 02mAmerican Airlines
Deal found 29/8$1,260
lun 1/916:05ATL - SYD
2 stops24h 55mUnited Airlines
dom 14/909:30SYD - ATL
2 stops26h 08mUnited Airlines
Deal found 29/8$1,265
dom 21/916:05ATL - SYD
2 stops24h 55mUnited Airlines
mar 30/910:20SYD - ATL
1 stop20h 29mUnited Airlines
Deal found 27/8$1,272
mer 17/919:40ATL - SYD
1 stop20h 55mDelta
mar 30/909:25SYD - ATL
1 stop23h 02mDelta
Deal found 26/8$1,274
mer 24/917:50ATL - SYD
2 stops22h 45mDelta
mer 1/1009:25SYD - ATL
2 stops24h 55mDelta
Deal found 27/8$1,280
sab 20/922:50ATL - SYD
1 stop41h 45mDelta
dom 5/1010:25SYD - ATL
1 stop26h 14mDelta
Deal found 28/8$1,286

Cheapflights Fare Finder

 
Customise your flight search to find flights from Atlanta 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 647,157 searches. Data last updated 29 agosto 2025.
Use the filters below to find and compare flights from Atlanta to Sydney that are best for you.

Fly from

Atlanta

Fly to

Sydney

Route

Depart

Return

Price

AtlantaSydney

ATL - SYD

ATLSYD

Atlanta Hartsfield-Jackson

mer 17/9

17:30-07:30

1 stop24h 00m

Sydney Kingsford Smith

mar 30/9

09:10-16:26

1 stop21h 16m

$1,248

AtlantaSydney

ATL - SYD

ATLSYD

Atlanta Hartsfield-Jackson

sab 27/9

17:30-07:05

1 stop23h 35m

Sydney Kingsford Smith

mar 14/10

10:10-16:52

1 stop21h 42m

$1,248

AtlantaSydney

ATL - SYD

ATLSYD

Atlanta Hartsfield-Jackson

dom 21/9

16:05-07:00

2 stops24h 55m

Sydney Kingsford Smith

mar 30/9

10:20-16:49

1 stop20h 29m

$1,272

AtlantaSydney

ATL - SYD

ATLSYD

Atlanta Hartsfield-Jackson

lun 22/9

17:57-06:55

1 stop22h 58m

Sydney Kingsford Smith

lun 29/9

10:20-16:40

1 stop20h 20m

$1,272

AtlantaSydney

ATL - SYD

ATLSYD

Atlanta Hartsfield-Jackson

dom 21/9

09:25-06:35

1 stop31h 10m

Sydney Kingsford Smith

mar 30/9

09:25-00:45

1 stop29h 20m

$1,274

AtlantaSydney

ATL - SYD

ATLSYD

Atlanta Hartsfield-Jackson

mer 17/9

16:50-06:35

1 stop23h 45m

Sydney Kingsford Smith

mer 1/10

09:25-21:39

1 stop26h 14m

$1,274

AtlantaSydney

ATL - SYD

ATLSYD

Atlanta Hartsfield-Jackson

mer 17/9

19:40-06:35

1 stop20h 55m

Sydney Kingsford Smith

mar 30/9

09:25-18:27

1 stop23h 02m

$1,274

AtlantaSydney

ATL - SYD

ATLSYD

Atlanta Hartsfield-Jackson

lun 22/9

17:45-06:35

2 stops22h 50m

Sydney Kingsford Smith

lun 29/9

09:25-23:42

2 stops28h 17m

$1,280

AtlantaSydney

ATL - SYD

ATLSYD

Atlanta Hartsfield-Jackson

mar 28/10

17:40-09:00

1 stop24h 20m

$644

AtlantaSydney

ATL - SYD

ATLSYD

Atlanta Hartsfield-Jackson

gio 11/9

17:30-07:05

1 stop23h 35m

$651

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 18 results
1
2

Best time to book a flight from Atlanta to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Atlanta with our price prediction graph.
Estimated return 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 Atlanta to Sydney

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

Use this chart to determine the optimal time to book a return flight from Atlanta to Sydney. Price data was last updated on 22 August 2025.

To ensure you get the cheapest price possible for a flight from Atlanta to Sydney, you should look to book at least 8 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, May is the cheapest month in which you can book a flight from Atlanta to Sydney (average of $129). Flying from Atlanta to Sydney in October is currently the most expensive (average of $171). 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 ATL to SYD?

Find hourly flight availability from Atlanta 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 29 agosto 2025.

A simple way to save on the total cost of your ticket is to fly from Atlanta to Sydney in the afternoon. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight in the morning.

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 29 agosto 2025.
Check out reviews from past customers who have flown with Qantas Airways and United Airlines from Atlanta to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
905 reviews
Check prices

Comfort

7.5

Food

6.9

Overall

7.5

Crew

8.2

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Qantas Airways
7.5
Good
905 reviews
Qantas Airways
7.5
Good
905 reviews
Check prices

Comfort

7.5

Food

6.9

Overall

7.5

Crew

8.2

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
United Airlines
7.4
Good
8,941 reviews
Qantas Airways
7.5
Good
905 reviews
Check prices

Comfort

7.5

Food

6.9

Overall

7.5

Crew

8.2

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

Related info for your journey

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

    Departing from Atlanta to Sydney will take you 24h. The distance between Atlanta and Sydney is about 14933 km.

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

    Flying on United Airlines is currently your cheapest option to Sydney, with prices starting at $1,280. Another option worth looking into is Qantas Airways, starting at $1,386 round trip. Users have found that United Airlines is 23% cheaper than the other options available to this destination.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Atlanta to Sydney (average of $129). Flying from Atlanta to Sydney in October is currently the most expensive (average of $171). 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

Travelling to a place near Sydney?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Atlanta to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Albany to Sydney flights

Top 2 airlines flying from Atlanta to Sydney

Discover the top 2 airlines that operate flights from Atlanta 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 647,157 searches. Data last updated 29 agosto 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,280Average$2,114FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$1,386Average$1,546FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Atlanta to Sydney?

Cheapflights makes it easy to find Atlanta to Sydney flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Atlanta to Sydney?

Cheapflights helps you find that perfect flight to Sydney from Atlanta by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Atlanta to Sydney with no change fees?

Yes! Cheapflights helps users easily find flights from Atlanta to Sydney with no change fees.

Can Cheapflights notify me if prices for flights from Atlanta to Sydney become cheaper?

Not ready to book yet? You can track prices for flights from Atlanta to Sydney on Cheapflights with our Price Alert feature and get notified when better prices are available.

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