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$459+ Cheap flights from Detroit (DTT) 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SYD
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Detroit All airports to Sydney Kingsford Smith are usually found in February or August, booked 74 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Find flight deals from Detroit to Sydney

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

This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/114:10 pmDTW - SYD
2 stops28h 20mMultiple Airlines
Tue 11/182:10 pmSYD - DTW
3 stops35h 09mMultiple Airlines
Deal found 10/28$1,056
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:47 amDTW - SYD
2 stops30h 13mMultiple Airlines
Wed 12/1711:20 amSYD - DTW
2 stops28h 39mMultiple Airlines
Deal found 10/28$1,080
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/103:49 pmDTW - SYD
1 stop23h 06mQantas Airways
Wed 12/176:05 amSYD - DTW
2 stops24h 47mQantas Airways
Deal found 10/27$1,104
This oojo deal was found by Cheapflights users on 10/29. 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 11/123:49 pmDTW - SYD
2 stops38h 36mQantas Airways
Wed 11/192:05 pmSYD - DTW
1 stop20h 37mQantas Airways
Deal found 10/29$1,115
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:15 pmDTW - SYD
2 stops47h 20mAir Canada
Thu 1/1511:20 amSYD - DTW
2 stops46h 15mAir Canada
Deal found 10/27$1,137
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:15 pmDTW - SYD
2 stops47h 20mAir Canada
Mon 11/2411:20 amSYD - DTW
2 stops46h 15mAir Canada
Deal found 10/28$1,139
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.
Wed 12/33:49 pmDTW - SYD
1 stop23h 06mQantas Airways
Wed 12/172:05 pmSYD - DTW
1 stop20h 34mQantas Airways
Deal found 10/28$1,143
This Qantas Airways 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/103:50 pmDTW - SYD
1 stop23h 05mQantas Airways
Mon 11/242:05 pmSYD - DTW
1 stop20h 41mQantas Airways
Deal found 10/28$1,177
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/104:47 pmDTW - SYD
1 stop22h 13mUnited Airlines
Mon 11/2412:10 pmSYD - DTW
2 stops26h 05mUnited Airlines
Deal found 10/28$1,183
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/294:30 pmDTW - SYD
2 stops49h 05mAir Canada
Wed 11/511:20 amSYD - DTW
2 stops46h 15mAir Canada
Deal found 10/28$1,193

Cheap flight deals from Detroit to Sydney

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

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,056
(Mytrip)

One-way from

$459
(Kiwi.com)

Popular in

April

Cheapest in

February

Average price

$954
Provider with most accurate pricing for Detroit (DTT)-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit (DTT)-Sydney Kingsford Smith flights.
Search Deals
From Detroit (DTT) to Sydney Kingsford Smith
Search Deals
One-way flight from Detroit (DTT) to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($18 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 Detroit 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 30, 2025.
Use the filters below to find and compare flights from Detroit to Sydney that are best for you.

Fly from

Detroit

Fly to

Sydney

Route

Depart

Return

Price

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Tue 3/24

4:31 pm-7:00 am

1 stop23h 29m

Sydney Kingsford Smith

Sun 4/19

10:20 am-6:13 am

1 stop33h 53m

$1,183

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Mon 1/26

7:10 am-6:20 am

1 stop31h 10m

Sydney Kingsford Smith

Mon 2/16

11:50 am-11:59 pm

1 stop28h 09m

$1,191

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Sat 12/6

2:05 pm-7:00 am

2 stops48h 55m

Sydney Kingsford Smith

Tue 12/23

11:50 am-11:38 pm

2 stops27h 48m

$1,209

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Mon 2/9

4:45 pm-9:05 am

2 stops24h 20m

Sydney Kingsford Smith

Sat 2/28

11:20 am-11:44 pm

2 stops28h 24m

$1,246

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Thu 3/26

10:25 am-9:15 am

2 stops31h 50m

Sydney Kingsford Smith

Sat 4/18

10:20 am-11:37 pm

2 stops27h 17m

$1,283

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Thu 12/4

11:05 am-9:15 am

3 stops30h 10m

Sydney Kingsford Smith

Thu 1/15

2:00 pm-11:44 pm

2 stops25h 44m

$1,295

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Tue 3/24

7:43 pm-8:50 pm

2 stops34h 07m

Sydney Kingsford Smith

Mon 4/20

7:40 am-12:24 am

2 stops30h 44m

$1,368

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Wed 11/12

3:49 pm-7:15 am

2 stops47h 26m

Sydney Kingsford Smith

Wed 11/19

3:15 pm-6:43 pm

2 stops43h 28m

$1,368

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Mon 1/5

11:53 am-8:35 am

2 stops28h 42m

Sydney Kingsford Smith

Tue 1/20

12:30 pm-8:44 pm

2 stops24h 14m

$1,430

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Fri 3/13

7:05 am-6:20 am

1 stop32h 15m

Sydney Kingsford Smith

Sat 3/28

11:20 am-11:59 pm

2 stops27h 39m

$1,446

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 23 results
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2
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Compare providers for flights from Detroit 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 Detroit to Sydney in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 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 Detroit-Sydney flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Detroit-Sydney flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Detroit-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit-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 Detroit-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 Detroit to Sydney

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

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

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

To ensure you get the cheapest price possible for a flight from Detroit to Sydney, you should look to book at least 74 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 Detroit to Sydney?

Currently, July is the cheapest month in which you can book a flight from Detroit to Sydney (average of $688). Flying from Detroit to Sydney in January is currently the most expensive (average of $874). 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 DTT to SYD?

Find hourly flight availability from Detroit 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 30, 2025.

It’s optimal to fly from Detroit to Sydney at noon. 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 Detroit to Sydney?

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

Travelers seeking maximum savings on their Detroit to Sydney flight should consider departing on Friday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What’s the top layover airport for flights from Detroit to Sydney?

Share of 1-stop round-trip flights from Detroit to Sydney chosen by Cheapflights users in the past 12 months, using the same layover each way.

Dallas (DFW) – chosen by Cheapflights users on 67% of 1-stop itineraries from Detroit to Sydney on Cheapflights.

What’s the cheapest layover airport for flights from Detroit to Sydney?

Average round-trip fare for 1-stop flights from Detroit to Sydney, chosen by Cheapflights users in the past 12 months, with the same layover each way.

San Francisco (SFO) is the most affordable 1-stop option, with an average round-trip price of $632.

What’s the fastest layover option from Detroit to Sydney?

Shortest average travel time for 1-stop one-way flights from Detroit to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via San Francisco (SFO) have the shortest average one-way travel time for 1-stop routes: 21h 27m.

Which airport typically offers the quickest layover for flights from Detroit to Sydney?

Average layover duration for 1-stop one-way flights from Detroit to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via San Francisco (SFO) offer the fastest connection on this route, with an average layover time of 2h 43m.

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 30, 2025.
Peruse reviews from past customers who have flown with Delta, Qantas Airways, and United Airlines from Detroit 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.
Delta
7.9
Good
7,993 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

7.9

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
7,993 reviews
Delta
7.9
Good
7,993 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

7.9

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
925 reviews
Delta
7.9
Good
7,993 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

7.9

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
8,998 reviews
Delta
7.9
Good
7,993 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

7.9

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
11,030 reviews
Delta
7.9
Good
7,993 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

7.9

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 Detroit 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 Detroit to Sydney?

    Airlines like United Airlines fly from Detroit to Sydney in about 23h 29m. The time it takes to get you to your destination can typically vary by up to . The distance between Detroit and Sydney is about 9461 mi.

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

    According to our current data, Air Canada ($723), Delta ($825), and Qantas Airways ($831) offers the cheapest pricing from Detroit to Sydney. Air Canada is currently priced 28% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Detroit to Sydney (average of $688). Flying from Detroit to Sydney in January is currently the most expensive (average of $874). 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

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Top 6 airlines flying from Detroit to Sydney

Discover the top 6 airlines that operate flights from Detroit 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$723Average$1,105FlexibilityNo cancel feeOn-time67%
DeltaCheapest$825Average$1,238FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$831Average$996FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$840Average$902FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$842Average$979FlexibilityNo cancel feeOn-time69%
Air New ZealandCheapest$864Average$1,385FlexibilityNo cancel feeOn-time78%

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