$401 Cheap Flights from Detroit (DTW) to Sydney (SYD)

View $401 flight on Mon, Sep 15, 2025Opens in a new window

Popular airlines from Detroit Metropolitan Wayne County Airport (DTW) to Sydney Airport (SYD)

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Cheap Flights from Detroit to Sydney (DTW-SYD)

Prices were available within the past 7 days and start at $401 for one-way flights and $792 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, Sep 20 - Fri, Sep 26
DTW
Detroit
SYD
Sydney
$792 Roundtrip, found 4 days ago
$792
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sat, Sep 20 from Detroit to Sydney, returning Fri, Sep 26, priced at $792 found 4 days ago
Air Canada
Sat, Sep 20 - Sun, Sep 28
DTW
Detroit
SYD
Sydney
$793 Roundtrip, found 1 day ago
$793
Roundtrip
found 1 day ago
Select Air Canada flight, departing Sat, Sep 20 from Detroit to Sydney, returning Sun, Sep 28, priced at $793 found 1 day ago
Air Canada
Sat, Sep 20 - Fri, Sep 26
DTW
Detroit
SYD
Sydney
$794 Roundtrip, found 4 days ago
$794
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sat, Sep 20 from Detroit to Sydney, returning Fri, Sep 26, priced at $794 found 4 days ago
Air Canada
Thu, Sep 4 - Sun, Sep 14
DTW
Detroit
SYD
Sydney
$795 Roundtrip, found 14 hours ago
$795
Roundtrip
found 14 hours ago
Select Air Canada flight, departing Thu, Sep 4 from Detroit to Sydney, returning Sun, Sep 14, priced at $795 found 14 hours ago
Qantas Airways
Mon, Sep 1 - Mon, Sep 15
DTW
Detroit
SYD
Sydney
$816 Roundtrip, found 3 hours ago
$816
Roundtrip
found 3 hours ago
Select Qantas Airways flight, departing Mon, Sep 1 from Detroit to Sydney, returning Mon, Sep 15, priced at $816 found 3 hours ago
Delta
Sun, Sep 28 - Tue, Oct 7
DTW
Detroit
SYD
Sydney
$831 Roundtrip, found 4 days ago
$831
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Sep 28 from Detroit to Sydney, returning Tue, Oct 7, priced at $831 found 4 days ago
United
Mon, Sep 8 - Tue, Sep 23
DTW
Detroit
SYD
Sydney
$832 Roundtrip, found 6 hours ago
$832
Roundtrip
found 6 hours ago
Select United flight, departing Mon, Sep 8 from Detroit to Sydney, returning Tue, Sep 23, priced at $832 found 6 hours ago
American Airlines
Sun, Aug 10 - Wed, Sep 10
DTW
Detroit
SYD
Sydney
$881 Roundtrip, just found
$881
Roundtrip
just found
Select American Airlines flight, departing Sun, Aug 10 from Detroit to Sydney, returning Wed, Sep 10, priced at $881 just found
Air New Zealand
Wed, Mar 11 - Sun, Mar 22
DTW
Detroit
SYD
Sydney
$1,307 Roundtrip, found 7 hours ago
$1,307
Roundtrip
found 7 hours ago
Select Air New Zealand flight, departing Wed, Mar 11 from Detroit to Sydney, returning Sun, Mar 22, priced at $1,307 found 7 hours ago
All Nippon Airways
Mon, Oct 20 - Sun, Nov 2
DTW
Detroit
SYD
Sydney
$1,484 Roundtrip, found 3 hours ago
$1,484
Roundtrip
found 3 hours ago
Select All Nippon Airways flight, departing Mon, Oct 20 from Detroit to Sydney, returning Sun, Nov 2, priced at $1,484 found 3 hours ago

Find the cheapest month to fly from Detroit (DTW) to Sydney (SYD)

September is typically the cheapest month to fly

From $783 - $2,002 per traveler.

Graph displaying average flight prices per month

Alternative airports near Sydney

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kingsford Smith Intl. SYD. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $857
SYD
Kingsford Smith Intl.
Cheapest
Average driving time to city center16 min
Flights from $857
Flights from Detroit (DTW) to Sydney (SYD)
Origin airport
Detroit Metropolitan Wayne County
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air New Zealand, Alaska Airlines, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, Delta, Etihad Airways, Japan Airlines, Korean Air, Lufthansa, Qantas Airways, Qatar Airways, Turkish Airlines, United
Roundtrip price
$792
Distance
9467 mi

Detroit to Sydney Flights

The cheapest times to fly from Detroit to Sydney

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Detroit to Sydney are during the month of September. You can find some of the cheapest flights from Detroit to Sydney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Detroit to Sydney

Sunday is one of the best days to book for cheap flights from Detroit to Sydney: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Detroit to Sydney

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Detroit to Sydney in 2025. You can also book with separate airlines for your outbound and return journeys, from $401 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Detroit to Sydney flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Detroit to Sydney airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Detroit Metropolitan Wayne County Airport (DTW) to Kingsford Smith Intl. Airport (SYD) cost?
Discover the latest flight deals from DTW to SYD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from DTW to SYD?
The cheapest flights from DTW to SYD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from DTW to SYD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from DTW to SYD. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Detroit Metropolitan Wayne County Airport (DTW) to Kingsford Smith Intl. Airport (SYD)?
Direct flights from Detroit Metropolitan Wayne County Airport (DTW) to Kingsford Smith Intl. Airport (SYD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DTW to SYD?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on various factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Detroit Metropolitan Wayne County Airport (DTW) to Kingsford Smith Intl. Airport (SYD)?
To touch down at Kingsford Smith Intl. Airport (SYD) on schedule, choose a flight that leaves from Detroit Metropolitan Wayne County Airport (DTW) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Detroit Metropolitan Wayne County Airport (DTW) to Kingsford Smith Intl. Airport (SYD) last-minute?
Last-minute fares from DTW to SYD are usually more expensive. For the best prices, start looking for flights ahead of time. That said, if you can play around with your travel dates, you may score a cheap fare right before your journey.
Is it cheaper to book a DTW to SYD flight and hotel package?
Booking a DTW to SYD flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our extensive range of hotels and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Detroit Metropolitan Wayne County Airport (DTW) to Kingsford Smith Intl. Airport (SYD)?
If you booked your DTW to SYD flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.