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$572+ Cheap flights from Green Bay (GRB) 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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — SYD
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Green Bay to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) 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 30, 2025.

Round-trip from

$955
(United Airlines)

One-way from

$572
(United Airlines)
From Green Bay Austin-Straubel to Sydney Kingsford Smith
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One-way flight from Green Bay Austin-Straubel to Sydney Kingsford Smith
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Find flight deals from Green Bay to Sydney

Cheapest flights from Green Bay to Sydney
Explore the most affordable flight options available from Green Bay to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This United Airlines deal was found by Cheapflights users on 7/30. 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 9/136:15 amGRB - SYD
2 stops33h 45mUnited Airlines
Sat 9/209:30 amSYD - GRB
2 stops27h 13mUnited Airlines
Deal found 7/30$955
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:20 amGRB - SYD
2 stops33h 15mDelta
Mon 8/259:25 amSYD - GRB
2 stops27h 28mDelta
Deal found 7/27$1,371
This Qantas Airways deal was found by Cheapflights users on 7/30. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/134:35 pmGRB - SYD
2 stops23h 30mMultiple Airlines
Sat 9/2012:10 pmSYD - GRB
3 stops36h 08mMultiple Airlines
Deal found 7/30$3,124

Cheapflights Fare Finder

 
Customize your flight search to find flights from Green Bay 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 30, 2025.
Use the filters below to find and compare flights from Green Bay to Sydney that are best for you.

Fly from

Green Bay

Fly to

Sydney

Route

Depart

Return

Price

Green BaySydney

GRB - SYD

GRBSYD

Green Bay Austin-Straubel

Sat 9/13

6:15 am-7:00 am

2 stops33h 45m

Sydney Kingsford Smith

Sat 9/20

9:30 am-9:43 pm

2 stops27h 13m

$955

Green BaySydney

GRB - SYD

GRBSYD

Green Bay Austin-Straubel

Thu 8/21

6:20 am-6:35 am

2 stops33h 15m

Sydney Kingsford Smith

Mon 8/25

9:25 am-9:53 pm

2 stops27h 28m

$1,371

Green BaySydney

GRB - SYD

GRBSYD

Green Bay Austin-Straubel

Sat 9/13

4:35 pm-7:05 am

2 stops23h 30m

Sydney Kingsford Smith

Sat 9/20

12:10 pm-9:18 am

3 stops36h 08m

$3,124

Green BaySydney

GRB - SYD

GRBSYD

Green Bay Austin-Straubel

Mon 11/3

1:20 pm-9:05 am

2 stops26h 45m

$572

Green BaySydney

GRB - SYD

GRBSYD

Green Bay Austin-Straubel

Mon 11/3

9:56 am-7:25 am

3 stops28h 29m

$2,887

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Green Bay to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Green Bay 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.

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 30, 2025.
See what other customers who have flown with Delta and United Airlines from Green Bay 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.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

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
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

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 Green Bay 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 Green Bay to Sydney round-trip?

    Currently priced at $955, United Airlines will fly you from Green Bay to Sydney and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $1,371.

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

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

  • How can I find direct flights from Green Bay to Sydney?

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

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

    Yes. Cheapflights offers flight deals from Green Bay 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 Green Bay to Sydney?

    Currently, February is the cheapest month in which you can book a flight from Green Bay to Sydney (average of $1,028). Flying from Green Bay to Sydney in December is currently the most expensive (average of $1,619). 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
Wollongong
Parramatta
Manly
Coogee

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