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

According to our current data, American Airlines ($1,363), United Airlines ($1,378), and Delta ($1,401) offers the cheapest pricing from Detroit to Sydney.

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 Air New Zealand ($663), Alaska Airlines ($942), and Qatar Airways ($968).

What are the most popular airlines that fly from Detroit to Sydney?

The most popular airlines flying from Detroit to Sydney are American Airlines, Air Canada and Delta. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Detroit to Sydney?

Friday flights are found to be more expensive to fly from Detroit to Sydney. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Sydney.

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

To save up to 34% on this flight, we recommend booking at least 23 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Detroit to Sydney from $873 1-2 weeks out and tickets from $873 for flights departing within the next 72 hours.

What is the cheapest month to fly from Detroit to Sydney?

The best pricing can be found in the month of February. Prices to Sydney from Detroit average $1,134. You can even find prices in February for less than $1,134, as users have found deals to Sydney from as low as $569. The month of December appears to be one of the more expensive times to travel to Sydney from Detroit. Flying in the targeted month can save you up to 22%.

Most accurate provider : When it comes to deals on Detroit-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit-Sydney flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

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.

$450+ Flights from Detroit to Sydney

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Detroit to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Detroit All airports to Sydney Kingsford Smith are usually found in February or March, booked 22 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Detroit to Sydney

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,006 (Trip.com)
One-way from	$450 (Trip.com)
Popular in	December
Cheapest in	February
Average price	$920

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. 14% potential increase in price ($193 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 March 2025

Search Deals

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 March 31, 2025.

Sat 4/122:29 pmDTW - SYD

2 stops31h 16mMultiple Airlines

Sat 4/261:45 pmSYD - DTW

2 stops33h 23mMultiple Airlines

Deal found 3/31

$1,006

Wed 10/296:07 pmDTW - SYD

1 stop21h 48mQantas Airways

Mon 11/172:30 pmSYD - DTW

1 stop19h 28mQantas Airways

Deal found 3/30

$1,103

Sun 8/104:21 pmDTW - SYD

2 stops25h 09mAmerican Airlines

Sun 8/2412:10 pmSYD - DTW

2 stops23h 35mAmerican Airlines

Deal found 3/30

$1,131

Sun 8/107:43 pmDTW - SYD

1 stop21h 12mUnited Airlines

Tue 8/2610:20 amSYD - DTW

1 stop20h 06mUnited Airlines

Deal found 3/30

$1,140

Sun 8/104:15 pmDTW - SYD

1 stop24h 20mDelta

Sun 8/249:25 amSYD - DTW

1 stop26h 51mDelta

Deal found 3/30

$1,185

Wed 11/58:10 pmDTW - SYD

2 stops31h 35mTurkish Airlines

Tue 11/119:40 pmSYD - DTW

2 stops36h 35mTurkish Airlines

Deal found 3/30

$1,422

Tue 8/269:26 amDTW - SYD

2 stops43h 49mANA

Sat 9/68:55 pmSYD - DTW

2 stops35h 56mANA

Deal found 3/31

$1,440

Tue 10/283:50 pmDTW - SYD

2 stops49h 45mAir Canada

Tue 11/1111:20 amSYD - DTW

3 stops43h 47mAir Canada

Deal found 3/30

$1,468

Wed 11/57:33 pmDTW - SYD

1 stop21h 42mAir New Zealand

Tue 11/117:15 pmSYD - DTW

2 stops60h 28mAir New Zealand

Deal found 3/30

$1,588

Tue 5/135:13 pmDTW - SYD

2 stops60h 32mAlaska Airlines

Tue 5/209:40 pmSYD - DTW

2 stops45h 34mAlaska Airlines

Deal found 3/30

$1,609

Best flights from Detroit to Sydney
Discover carefully curated flight deals from Detroit to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 31, 2025.

Sat 4/122:29 pmDTW - SYD

2 stops31h 16mMultiple Airlines

Sat 4/261:45 pmSYD - DTW

2 stops33h 23mMultiple Airlines

Deal found 3/31

$1,006

Thu 6/264:06 pmDTW - SYD

2 stops25h 24mAmerican Airlines

Sat 7/125:45 pmSYD - DTW

2 stops26h 09mAmerican Airlines

Deal found 3/31

$1,363

Wed 6/43:38 pmDTW - SYD

2 stops25h 22mUnited Airlines

Mon 9/19:30 amSYD - DTW

2 stops41h 46mUnited Airlines

Deal found 3/29

$1,378

Sat 6/146:25 pmDTW - SYD

1 stop22h 10mDelta

Sat 6/289:25 amSYD - DTW

1 stop21h 38mDelta

Deal found 3/30

$1,401

Tue 5/135:13 pmDTW - SYD

2 stops60h 32mAlaska Airlines

Tue 5/209:40 pmSYD - DTW

2 stops45h 34mAlaska Airlines

Deal found 3/30

$1,609

Tue 5/63:31 pmDTW - SYD

1 stop25h 24mQantas Airways

Thu 5/158:30 pmSYD - DTW

2 stops39h 38mQantas Airways

Deal found 3/30

$1,624

Tue 5/62:05 pmDTW - SYD

2 stops39h 10mANA

Thu 5/1511:50 amSYD - DTW

2 stops39h 28mANA

Deal found 3/30

$1,635

Tue 5/134:49 pmDTW - SYD

2 stops25h 56mAir New Zealand

Tue 5/2010:20 amSYD - DTW

1 stop20h 17mAir New Zealand

Deal found 3/30

$1,657

Fri 5/29:30 amDTW - SYD

2 stops31h 50mAir Canada

Fri 5/309:20 amSYD - DTW

2 stops44h 13mAir Canada

Deal found 3/30

$1,697

Thu 4/32:30 pmDTW - SYD

2 stops36h 40mQatar Airways

Sat 4/59:45 pmSYD - DTW

2 stops39h 09mQatar Airways

Deal found 3/30

$2,258

Mon 5/196:23 pmDTW - SYD

3 stops49h 12mLATAM Airlines

Sun 6/111:50 amSYD - DTW

3 stops37h 24mLATAM Airlines

Deal found 3/30

$2,851

Tue 5/65:52 pmDTW - SYD

3 stops45h 28mBritish Airways

Thu 5/152:40 pmSYD - DTW

3 stops44h 31mBritish Airways

Deal found 3/31

$3,860

Last-minute flights from Detroit to Sydney
Discover last-minute flight deals from Detroit to Sydney. Data last updated March 31, 2025 and is based on user searches.

Wed 4/28:30 amDTW - SYD

2 stops33h 15mAir New Zealand

Thu 4/1710:20 amSYD - DTW

1 stop34h 00mAir New Zealand

Deal found 3/30

$1,942

Thu 4/32:30 pmDTW - SYD

2 stops36h 40mQatar Airways

Sat 4/59:45 pmSYD - DTW

2 stops39h 09mQatar Airways

Deal found 3/30

$2,258

Mon 4/75:40 amDTW - SYD

2 stops37h 45mANA

Wed 4/308:55 pmSYD - DTW

2 stops37h 27mANA

Deal found 3/30

$1,977

Mon 4/77:16 amDTW - SYD

1 stop33h 39mAir New Zealand

Wed 4/306:20 pmSYD - DTW

2 stops43h 39mAir New Zealand

Deal found 3/30

$2,166

Mon 4/74:25 pmDTW - SYD

1 stop24h 10mDelta

Wed 4/309:25 amSYD - DTW

1 stop24h 19mDelta

Deal found 3/30

$2,245

Mon 4/78:25 pmDTW - SYD

2 stops44h 55mAir Canada

Wed 4/309:20 amSYD - DTW

3 stops48h 55mAir Canada

Deal found 3/30

$2,596

Mon 4/76:10 pmDTW - SYD

3 stops49h 25mLATAM Airlines

Wed 4/3011:50 amSYD - DTW

3 stops37h 24mLATAM Airlines

Deal found 3/30

$3,448

Sat 4/122:29 pmDTW - SYD

2 stops31h 16mMultiple Airlines

Sat 4/261:45 pmSYD - DTW

2 stops33h 23mMultiple Airlines

Deal found 3/31

$1,006

Tue 4/158:25 pmDTW - SYD

2 stops44h 55mAir Canada

Fri 5/99:20 amSYD - DTW

2 stops44h 13mAir Canada

Deal found 3/30

$1,749

Tue 4/153:12 pmDTW - SYD

2 stops28h 28mQantas Airways

Sat 4/196:00 pmSYD - DTW

2 stops42h 45mQantas Airways

Deal found 3/30

$1,754

Tue 4/152:58 pmDTW - SYD

3 stops48h 22mBritish Airways

Fri 5/92:40 pmSYD - DTW

3 stops40h 38mBritish Airways

Deal found 3/30

$16,432

Mon 4/285:55 pmDTW - SYD

2 stops23h 10mAmerican Airlines

Mon 5/59:10 amSYD - DTW

2 stops23h 40mAmerican Airlines

Deal found 3/30

$1,706

One-way flights from Detroit to Sydney
Search for one-way flight options from Detroit to Sydney. Find affordable one-way fares based on user searches. Data last updated March 31, 2025.

Fri 4/2510:05 pmDTW - SYD

2 stops58h 05mMultiple Airlines

Deal found 3/30

$450

Tue 5/137:23 amDTW - SYD

2 stops35h 22mAir New Zealand

Deal found 3/30

$663

Sat 5/244:53 pmDTW - SYD

2 stops60h 52mAlaska Airlines

Deal found 3/31

$942

Wed 4/232:30 pmDTW - SYD

2 stops36h 40mQatar Airways

Deal found 3/30

$968

Sat 5/248:35 amDTW - SYD

1 stop32h 00mDelta

Deal found 3/31

$1,077

Fri 5/95:33 pmDTW - SYD

1 stop23h 22mUnited Airlines

Deal found 3/30

$1,140

Tue 4/225:37 pmDTW - SYD

1 stop23h 18mAmerican Airlines

Deal found 3/30

$1,250

Sat 4/125:37 pmDTW - SYD

1 stop23h 18mQantas Airways

Deal found 3/30

$1,339

Sat 5/249:30 amDTW - SYD

3 stops55h 50mAir Canada

Deal found 3/30

$1,424

Cheapflights Fare Finder

Use the filters below to find and compare flights from Detroit to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Sat 4/12

2:29 pm-11:45 am

2 stops31h 16m

Sydney Kingsford Smith

Sat 4/26

1:45 pm-9:08 am

2 stops33h 23m

$1,006

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Thu 6/26

4:06 pm-7:30 am

2 stops25h 24m

Sydney Kingsford Smith

Sat 7/12

5:45 pm-5:54 am

2 stops26h 09m

$1,363

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Wed 6/4

3:38 pm-7:00 am

2 stops25h 22m

Sydney Kingsford Smith

Mon 9/1

9:30 am-1:16 pm

2 stops41h 46m

$1,378

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Sat 6/14

6:25 pm-6:35 am

1 stop22h 10m

Sydney Kingsford Smith

Sat 6/28

9:25 am-5:03 pm

1 stop21h 38m

$1,401

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Tue 5/13

5:13 pm-7:45 pm

2 stops60h 32m

Sydney Kingsford Smith

Tue 5/20

9:40 pm-5:14 am

2 stops45h 34m

$1,609

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Tue 5/6

3:31 pm-6:55 am

1 stop25h 24m

Sydney Kingsford Smith

Thu 5/15

8:30 pm-10:08 pm

2 stops39h 38m

$1,624

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Tue 5/6

2:05 pm-7:15 pm

2 stops39h 10m

Sydney Kingsford Smith

Thu 5/15

11:50 am-1:18 pm

2 stops39h 28m

$1,635

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Tue 5/13

4:49 pm-8:45 am

2 stops25h 56m

Sydney Kingsford Smith

Tue 5/20

10:20 am-4:37 pm

1 stop20h 17m

$1,657

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Fri 5/2

9:30 am-7:20 am

2 stops31h 50m

Sydney Kingsford Smith

Fri 5/30

9:20 am-3:33 pm

2 stops44h 13m

$1,697

DetroitSydney

DTW - SYD

DTWSYD

Detroit Metropolitan Wayne County

Thu 4/3

2:30 pm-6:10 pm

2 stops36h 40m

Sydney Kingsford Smith

Sat 4/5

9:45 pm-9:54 pm

2 stops39h 09m

$2,258

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 21 results

Compare providers for flights from Detroit to Sydney

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to Sydney in March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit-Sydney flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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?

To ensure you get the cheapest price possible for a flight from Detroit to Sydney, you should look to book at least 22 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, February is the cheapest month in which you can book a flight from Detroit to Sydney (average of $1,046). Flying from Detroit to Sydney in December is currently the most expensive (average of $1,643). 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?

It’s optimal to fly from Detroit to Sydney at noon. By choosing this option you can save up to 37% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Detroit to Sydney?

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

Rainfall in Sydney by month

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

Temperature in Sydney by month

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Sydney

See what other customers who have flown with ANA, Alaska Airlines and Delta from Detroit to Sydney have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

ANA

8.3

Very good

831 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.

ANA

8.3

Very good

831 reviews

ANA

8.3

Very good

831 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Mar 2025

SFO - HND

Alaska Airlines

8.0

Very good

9,818 reviews

ANA

8.3

Very good

831 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Mar 2025

SFO - HND

Delta

8.0

Very good

7,899 reviews

ANA

8.3

Very good

831 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Mar 2025

SFO - HND

Air New Zealand

7.9

Good

456 reviews

ANA

8.3

Very good

831 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Mar 2025

SFO - HND

Qantas Airways

7.5

Good

813 reviews

ANA

8.3

Very good

831 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Mar 2025

SFO - HND

Related info for your journey

What are the cheapest airlines flying from Detroit to Sydney round-trip?
According to our current data, American Airlines ($1,363), United Airlines ($1,378), and Delta ($1,401) offers the cheapest pricing from Detroit to Sydney.
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 Air New Zealand ($663), Alaska Airlines ($942), and Qatar Airways ($968).
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, February is the cheapest month in which you can book a flight from Detroit to Sydney (average of $1,046). Flying from Detroit to Sydney in December is currently the most expensive (average of $1,643). 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

Wollongong

Parramatta

Coogee

Manly

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Detroit to Sydney

O'Hare Intl to Sydney flights

Detroit to Sydney flights

Midway to Sydney flights

O'Hare Intl to Coolangatta flights

Grand Rapids to Sydney flights

Flint to Sydney flights

Lansing to Sydney flights

South Bend to Sydney flights

Kalamazoo to Sydney flights

Muskegon to Sydney flights

Traverse City to Sydney flights

Complete your trip

Sydney car rentals

Sydney Kingsford Smith Airport car rentals

Newcastle Williamtown Airport car rentals

Port Macquarie car rentals

Orange car rentals

Sydney CBD car rentals

Potts Point car rentals

Millers Point car rentals

Elizabeth Bay car rentals

Waterloo car rentals

The Rocks car rentals

Chippendale car rentals

Other flights to Sydney

Top 7 airlines flying from Detroit to Sydney

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$152	Average$206	FlexibilityNo cancel fee	On-time65%
Qantas Airways	Cheapest$802	Average$1,168	FlexibilityNo cancel fee	On-time74%
American Airlines	Cheapest$833	Average$910	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$841	Average$1,150	FlexibilityNo cancel fee	On-time69%
Air New Zealand	Cheapest$864	Average$1,647	FlexibilityNo cancel fee	On-time78%
Delta	Cheapest$971	Average$1,622	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$1,222	Average$1,531	FlexibilityNo cancel fee	On-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$450+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Detroit to Sydney with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Detroit All airports to Sydney Kingsford Smith are usually found in February or March, booked 22 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Detroit to Sydney

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Detroit to Sydney

Cheapest flights from Detroit to SydneyExplore 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 March 31, 2025.

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 March 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Detroit to Sydney that are best for you.

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 March.

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.

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 March 28, 2025.

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

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 March 31, 2025.

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.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

Reviews of airlines servicing Sydney

See what other customers who have flown with ANA, Alaska Airlines and Delta from Detroit to Sydney have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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

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

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

How can I find direct flights from Detroit to Sydney?

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

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

Traveling to a place near Detroit?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Detroit to Sydney

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Detroit to Sydney

100% Free

Book with Flexibility

Travel Smart

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 March 31, 2025.