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$532+ 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SYD
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Detroit All airports to Sydney Kingsford Smith are usually found in March or November, booked 74 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap 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 December 15, 2025.

This FlightHub deal was found by Cheapflights users on 12/13. 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.
Fri 12/266:15 pmDTW - SYD
2 stops47h 20mAir Canada
Fri 1/1611:20 amSYD - DTW
2 stops46h 15mAir Canada
Deal found 12/13$1,272
This Air Canada deal was found by Cheapflights users on 12/15. 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.
Wed 12/319:06 amDTW - SYD
2 stops32h 29mAir Canada
Thu 1/1511:20 amSYD - DTW
2 stops46h 15mAir Canada
Deal found 12/15$1,318
This Air Canada deal was found by Cheapflights users on 12/13. 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.
Sun 12/286:15 pmDTW - SYD
2 stops47h 20mAir Canada
Sat 1/2411:20 amSYD - DTW
2 stops46h 15mAir Canada
Deal found 12/13$1,486
This Qantas Airways deal was found by Cheapflights users on 12/15. 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.
Wed 12/313:32 pmDTW - SYD
1 stop23h 23mQantas Airways
Thu 1/1512:30 pmSYD - DTW
2 stops24h 14mQantas Airways
Deal found 12/15$1,561
This United Airlines deal was found by Cheapflights users on 12/13. 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.
Sun 12/216:00 amDTW - SYD
1 stop33h 00mUnited Airlines
Wed 12/318:30 amSYD - DTW
2 stops31h 36mUnited Airlines
Deal found 12/13$1,583

Find 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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$885
(CrystalTravel)

One-way from

$532
(Trip.com)

Popular in

April

Cheapest in

March

Average price

$1,173
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. 5% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 15, 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 1/27

1:23 pm-6:55 am

1 stop25h 32m

Sydney Kingsford Smith

Mon 4/27

12:00 pm-10:11 pm

1 stop24h 11m

$1,150

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Tue 3/24

3:59 pm-6:55 am

1 stop23h 56m

Sydney Kingsford Smith

Sat 4/18

12:00 pm-6:00 pm

1 stop20h 00m

$1,150

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Mon 3/23

3:59 pm-6:55 am

1 stop23h 56m

Sydney Kingsford Smith

Thu 4/23

12:00 pm-6:00 pm

1 stop20h 00m

$1,150

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Thu 3/26

3:59 pm-6:55 am

1 stop23h 56m

Sydney Kingsford Smith

Sat 4/18

12:00 pm-6:00 pm

1 stop20h 00m

$1,153

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Mon 1/19

7:10 am-9:15 am

1 stop34h 05m

Sydney Kingsford Smith

Tue 2/17

2:00 pm-8:59 pm

1 stop22h 59m

$1,156

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Tue 3/24

12:15 pm-7:30 am

2 stops28h 15m

Sydney Kingsford Smith

Mon 4/20

9:15 am-7:12 pm

2 stops23h 57m

$1,156

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Sun 2/15

4:43 pm-9:05 am

2 stops24h 22m

Sydney Kingsford Smith

Wed 2/25

11:50 am-3:56 pm

1 stop20h 06m

$1,156

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Tue 1/27

10:35 am-6:50 am

2 stops28h 15m

Sydney Kingsford Smith

Mon 4/27

9:15 am-5:05 pm

1 stop21h 50m

$1,156

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Wed 3/18

4:05 pm-7:25 am

1 stop24h 20m

Sydney Kingsford Smith

Mon 4/20

9:15 am-7:13 pm

1 stop23h 58m

$1,156

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Mon 2/2

6:45 am-7:25 am

2 stops32h 40m

$543

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 16 results
1
2

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 December.
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 December 12, 2025.

To ensure you get the cheapest price possible for a flight from Detroit to Sydney, you should look to book at least 73 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 $522). Flying from Detroit to Sydney in December is currently the most expensive (average of $858). 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 December 15, 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.

How much does it cost to fly round-trip from Detroit 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 December 15, 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
8,010 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,010 reviews
Delta
7.9
Good
8,010 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Qantas Airways
7.5
Good
946 reviews
Delta
7.9
Good
8,010 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,094 reviews
Delta
7.9
Good
8,010 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,049 reviews
Delta
7.9
Good
8,010 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,527 reviews
Delta
7.9
Good
8,010 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 Qantas Airways and United Airlines fly from Detroit to Sydney in about 25h 32m. The time it takes to get you to your destination can typically vary by up to 8h 33m. The distance between Detroit and Sydney is about 9461 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, Air Canada ($723), Delta ($766), and Air New Zealand ($810) offers the cheapest pricing from Detroit to Sydney. Air Canada is currently priced 27% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Detroit to Sydney one-way?

    The cheapest airlines for a one-way flight from Detroit to Sydney are American Airlines ($411), Qantas Airways ($418), and United Airlines ($435).

  • 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 $522). Flying from Detroit to Sydney in December is currently the most expensive (average of $858). 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$723Average$983FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$816Average$1,006FlexibilityNo cancel feeOn-time74%
DeltaCheapest$823Average$1,217FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$839Average$891FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$842Average$979FlexibilityNo cancel feeOn-time69%
Air New ZealandCheapest$864Average$1,385FlexibilityNo cancel feeOn-time78%

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