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

Currently priced at $1,865, Qantas Airways will fly you from Detroit to Perth and back. In addition to Qantas Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Cathay Pacific and Air Canada - these airlines can fly you to your destination from $2,320 and $2,388, respectively. You may be able to fly from Detroit to Perth for 26% less than the average price by searching for these airlines. Find deals

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

Currently, May is the cheapest month in which you can book a flight from Detroit to Perth (average of $286). Flying from Detroit to Perth in December is currently the most expensive (average of $409). 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. Find deals

In terms of precipitation, rainfall in Perth ranges from 0.0 - 170.0 inches per month. June is typically the wettest month, when rainfall can reach 170.0 mm. January is typically the driest time to visit Perth when rainfall is around 0.0 mm. Find deals

If weather is an important factor for your trip to Perth, 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 24.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 12.0 C). Find deals

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

The best pricing can be found in the month of March. Prices to Perth from Detroit average $2,522. You can even find prices in March for less than $2,522, as users have found deals to Perth from as low as $1,924. The month of July appears to be one of the more expensive times to travel to Perth from Detroit. Flying in the targeted month can save you up to 49%.

What is the cheapest time of day to fly from DTT to PER?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Detroit to Perth as you normally would.

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

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

How can I find direct flights from Detroit to Perth?

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

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

Yes. Cheapflights offers flight deals from Detroit to Perth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$1,865+ Flights from Detroit to Perth

Cheap flight deals from Detroit to Perth

Round-trip from	$1,865
Popular in	July
Cheapest in	March
Average price	$2,143

Qantas Airways
15/9-22/9
4 total stops
71h 45m total
Detroit to Perth

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($664 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($193 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Detroit to Perth

Cheapest flights from Detroit to Perth
Explore the most affordable flight options available from Detroit to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2025.

Mon 15/916:05DTW - PER

2 stops37h 00mQantas Airways

Mon 22/923:55PER - DTW

2 stops34h 45mQantas Airways

Deal found 31/7$1,865

Fri 21/1118:15DTW - PER

3 stops58h 05mMultiple Airlines

Tue 10/215:15PER - DTW

3 stops63h 21mMultiple Airlines

Deal found 30/7$2,120

Mon 15/913:04DTW - PER

2 stops30h 41mCathay Pacific

Sun 21/900:10PER - DTW

2 stops33h 38mCathay Pacific

Deal found 31/7$2,320

Mon 15/916:10DTW - PER

3 stops41h 20mAir Canada

Mon 22/915:30PER - DTW

3 stops40h 30mAir Canada

Deal found 31/7$2,388

Wed 8/1012:16DTW - PER

2 stops42h 24mQatar Airways

Wed 15/1022:45PER - DTW

2 stops36h 55mQatar Airways

Deal found 30/7$2,407

Thu 20/1121:20DTW - PER

2 stops37h 35mKLM

Tue 10/206:50PER - DTW

3 stops43h 30mKLM

Deal found 30/7$3,604

Thu 20/1121:20DTW - PER

2 stops37h 35mAir France

Mon 9/220:20PER - DTW

1 stop30h 25mAir France

Deal found 30/7$6,389

Best flights from Detroit to Perth
Discover carefully curated flight deals from Detroit to Perth that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 August 2025.

Mon 15/916:05DTW - PER

2 stops37h 00mQantas Airways

Mon 22/923:55PER - DTW

2 stops34h 45mQantas Airways

Deal found 31/7$1,865

Fri 21/1118:15DTW - PER

3 stops58h 05mMultiple Airlines

Tue 10/215:15PER - DTW

3 stops63h 21mMultiple Airlines

Deal found 30/7$2,120

Mon 15/913:04DTW - PER

2 stops30h 41mCathay Pacific

Sun 21/900:10PER - DTW

2 stops33h 38mCathay Pacific

Deal found 31/7$2,320

Mon 15/916:10DTW - PER

3 stops41h 20mAir Canada

Mon 22/915:30PER - DTW

3 stops40h 30mAir Canada

Deal found 31/7$2,388

Wed 8/1012:16DTW - PER

2 stops42h 24mQatar Airways

Wed 15/1022:45PER - DTW

2 stops36h 55mQatar Airways

Deal found 30/7$2,407

Thu 20/1121:20DTW - PER

2 stops37h 35mKLM

Tue 10/206:50PER - DTW

3 stops43h 30mKLM

Deal found 30/7$3,604

Thu 20/1121:20DTW - PER

2 stops37h 35mAir France

Mon 9/220:20PER - DTW

1 stop30h 25mAir France

Deal found 30/7$6,389

Last-minute flights from Detroit to Perth
Discover last-minute flight deals from Detroit to Perth. Data last updated 1 August 2025 and is based on user searches.

Wed 27/818:18DTW - PER

2 stops34h 47mQantas Airways

Wed 3/923:55PER - DTW

2 stops34h 38mQantas Airways

Deal found 30/7$1,962

Wed 27/809:33DTW - PER

2 stops34h 12mMultiple Airlines

Wed 3/918:25PER - DTW

3 stops47h 35mMultiple Airlines

Deal found 30/7$2,212

Wed 27/813:02DTW - PER

2 stops30h 43mCathay Pacific

Tue 2/900:10PER - DTW

2 stops33h 38mCathay Pacific

Deal found 30/7$2,848

Wed 27/818:40DTW - PER

1 stop26h 05mAir France

Wed 3/919:35PER - DTW

1 stop29h 23mAir France

Deal found 30/7$13,126

Fly from

Fly to

Route

Depart

Return

Price

DetroitPerth

DTW - PER

DTWPER

Detroit Metropolitan Wayne County

Mon 15/9

16:05-17:05

2 stops37h 00m

Perth

Mon 22/9

23:55-22:40

2 stops34h 45m

$1,865

DetroitPerth

DTW - PER

DTWPER

Detroit Metropolitan Wayne County

Fri 21/11

18:15-17:20

3 stops58h 05m

Perth

Tue 10/2

15:15-17:36

3 stops63h 21m

$2,120

DetroitPerth

DTW - PER

DTWPER

Detroit Metropolitan Wayne County

Mon 15/9

13:04-07:45

2 stops30h 41m

Perth

Sun 21/9

00:10-21:48

2 stops33h 38m

$2,320

DetroitPerth

DTW - PER

DTWPER

Detroit Metropolitan Wayne County

Mon 15/9

16:10-21:30

3 stops41h 20m

Perth

Mon 22/9

15:30-20:00

3 stops40h 30m

$2,388

DetroitPerth

DTW - PER

DTWPER

Detroit Metropolitan Wayne County

Wed 8/10

12:16-18:40

2 stops42h 24m

Perth

Wed 15/10

22:45-23:40

2 stops36h 55m

$2,407

DetroitPerth

DTW - PER

DTWPER

Detroit Metropolitan Wayne County

Thu 20/11

21:20-23:55

2 stops37h 35m

Perth

Tue 10/2

06:50-13:20

3 stops43h 30m

$3,604

DetroitPerth

DTW - PER

DTWPER

Detroit Metropolitan Wayne County

Thu 20/11

21:20-23:55

2 stops37h 35m

Perth

Mon 9/2

20:20-13:45

1 stop30h 25m

$6,389

Flights are sorted by cheapest return flights first.

Deals found on 31/7

Best time to book a flight from Detroit to Perth

Have a flexible travel schedule? Discover the best time to fly to Perth from Detroit with our price prediction graph.

Estimated return 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 Perth

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Perth

See what other customers who have flown with KLM, Cathay Pacific, andQantas Airways from Detroit to Perth have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,June 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,383 reviews

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,June 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Cathay Pacific

7.6

Good

949 reviews

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,June 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Qantas Airways

7.5

Good

887 reviews

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,June 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Air France

7.5

Good

1,465 reviews

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,June 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Qatar Airways

7.4

Good

3,609 reviews

KLM

7.8

Good

1,383 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,June 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

What are the cheapest airlines flying from Detroit to Perth round-trip?
Currently priced at $1,865, Qantas Airways will fly you from Detroit to Perth and back. In addition to Qantas Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Cathay Pacific and Air Canada - these airlines can fly you to your destination from $2,320 and $2,388, respectively. You may be able to fly from Detroit to Perth for 26% less than the average price by searching for these airlines.
Can I find deals for flights from Detroit to Perth that include hotel bookings?
Yes. In addition to deals on Detroit to Perth flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Detroit to Perth?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Detroit to Perth.
Can I find deals for business class flights from Detroit to Perth?
Yes. Cheapflights offers flight deals from Detroit to Perth 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 Perth?
Currently, May is the cheapest month in which you can book a flight from Detroit to Perth (average of $286). Flying from Detroit to Perth in December is currently the most expensive (average of $409). 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

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How does Cheapflights help users find flights from Detroit to Perth?

Deals for Detroit to Perth flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Detroit to Perth?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Detroit to Perth for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Detroit to Perth with no change fees?

Yes, we can. To see specific flights from Detroit to Perth with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Detroit to Perth become cheaper?

Not ready to book yet? You can track prices for flights from Detroit to Perth on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Detroit to Perth from $1,865

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Detroit to Perth

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Detroit to Perth

Cheapest flights from Detroit to PerthExplore the most affordable flight options available from Detroit to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2025.

Explore the most affordable flight options available from Detroit to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Detroit to Perth

Have a flexible travel schedule? Discover the best time to fly to Perth from Detroit with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Detroit to Perth

Reviews of airlines servicing Perth

Get insights into the airlines that provide service to Perth. 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 Perth. Reviews last updated 1 August 2025.

See what other customers who have flown with KLM, Cathay Pacific, andQantas Airways from Detroit to Perth have to say. You can also see how each airline compares 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 Perth. 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 Perth round-trip?

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

How can I find direct flights from Detroit to Perth?

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

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

Travelling to a place near Perth?

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 Perth

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

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Detroit to Perth?

Why should you use Cheapflights to find cheap flight tickets from Detroit to Perth?

Can Cheapflights find flights from Detroit to Perth with no change fees?

Can Cheapflights notify me if prices for flights from Detroit to Perth become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Detroit to Perth
Explore the most affordable flight options available from Detroit to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2025.