$619 Cheap Flights from Detroit (DTW) to Perth (PER)

View $619 flight on Wed, Aug 13, 2025Opens in a new window

Popular airlines from Detroit Metropolitan Wayne County Airport (DTW) to Perth Airport (PER)

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Cheap Flights from Detroit to Perth (DTW-PER)

Prices were available within the past 7 days and start at $619 for one-way flights and $1,252 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
Thu, Aug 28 - Wed, Sep 10
DTW
Detroit
PER
Perth
$1,252 Roundtrip, found 5 days ago
$1,252
Roundtrip
found 5 days ago
Select Cathay Pacific flight, departing Thu, Aug 28 from Detroit to Perth, returning Wed, Sep 10, priced at $1,252 found 5 days ago
Qantas Airways
Mon, Aug 18 - Mon, Aug 25
DTW
Detroit
PER
Perth
$1,262 Roundtrip, found 6 days ago
$1,262
Roundtrip
found 6 days ago
Select Qantas Airways flight, departing Mon, Aug 18 from Detroit to Perth, returning Mon, Aug 25, priced at $1,262 found 6 days ago
Qantas Airways
Wed, Aug 13 - Wed, Sep 3
DTW
Detroit
PER
Perth
$1,264 Roundtrip, found 15 hours ago
$1,264
Roundtrip
found 15 hours ago
Select Qantas Airways flight, departing Wed, Aug 13 from Detroit to Perth, returning Wed, Sep 3, priced at $1,264 found 15 hours ago
Cathay Pacific
Thu, Aug 28 - Wed, Sep 10
DTW
Detroit
PER
Perth
$1,268 Roundtrip, found 5 days ago
$1,268
Roundtrip
found 5 days ago
Select Cathay Pacific flight, departing Thu, Aug 28 from Detroit to Perth, returning Wed, Sep 10, priced at $1,268 found 5 days ago
Cathay Pacific
Fri, Oct 24 - Mon, Nov 10
DTW
Detroit
PER
Perth
$1,280 Roundtrip, found 4 days ago
$1,280
Roundtrip
found 4 days ago
Select Cathay Pacific flight, departing Fri, Oct 24 from Detroit to Perth, returning Mon, Nov 10, priced at $1,280 found 4 days ago
Air Canada
Mon, Feb 23 - Mon, Mar 2
DTW
Detroit
PER
Perth
$1,306 Roundtrip, found 5 days ago
$1,306
Roundtrip
found 5 days ago
Select Air Canada flight, departing Mon, Feb 23 from Detroit to Perth, returning Mon, Mar 2, priced at $1,306 found 5 days ago
Qantas Airways
Mon, Mar 9 - Sat, Mar 28
DTW
Detroit
PER
Perth
$1,308 Roundtrip, found 6 days ago
$1,308
Roundtrip
found 6 days ago
Select Qantas Airways flight, departing Mon, Mar 9 from Detroit to Perth, returning Sat, Mar 28, priced at $1,308 found 6 days ago
Qantas Airways
Wed, Aug 13 - Wed, Sep 3
DTW
Detroit
PER
Perth
$1,310 Roundtrip, found 15 hours ago
$1,310
Roundtrip
found 15 hours ago
Select Qantas Airways flight, departing Wed, Aug 13 from Detroit to Perth, returning Wed, Sep 3, priced at $1,310 found 15 hours ago
American Airlines
Mon, Aug 18 - Mon, Aug 25
DTW
Detroit
PER
Perth
$1,311 Roundtrip, found 6 days ago
$1,311
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, Aug 18 from Detroit to Perth, returning Mon, Aug 25, priced at $1,311 found 6 days ago
United
Mon, Aug 18 - Thu, Aug 28
DTW
Detroit
PER
Perth
$1,517 Roundtrip, found 5 days ago
$1,517
Roundtrip
found 5 days ago
Select United flight, departing Mon, Aug 18 from Detroit to Perth, returning Thu, Aug 28, priced at $1,517 found 5 days ago

Alternative airports near Perth

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

Select flight to Perth Airport PER. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $1,388
PER
Perth Airport
CheapestClosest
Average driving time to city center14 min
Flights from $1,388
Flights from Detroit (DTW) to Perth (PER)
Origin airport
Detroit Metropolitan Wayne County
Destination airport
Perth
Airlines serving
Air Canada, Air France, Air New Zealand, All Nippon Airways, Cathay Pacific, Qantas Airways, Qatar Airways, United
Roundtrip price
$1,252
Distance
11161 mi

Detroit to Perth Flights

The cheapest times to fly from Detroit to Perth

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 Perth are during the month of August. You can find some of the cheapest flights from Detroit to Perth with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Detroit to Perth

Sunday is one of the best days to book for cheap flights from Detroit to Perth: 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 Perth

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 Perth in 2025. You can also book with separate airlines for your outbound and return journeys, from $619 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 Perth 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 Perth 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 Perth Airport (PER) cost?
Grab a cheap one-way flight from $619 or cheap return flight from $1,252 from Detroit Metropolitan Wayne County Airport (DTW) to Perth Airport (PER) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Detroit Metropolitan Wayne County Airport (DTW) to Perth Airport (PER)?
Planning your getaway for August is a good way to save, as it's the cheapest month for flights between DTW and PER. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Detroit Metropolitan Wayne County Airport (DTW) to Perth Airport (PER)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from DTW to PER. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Detroit Metropolitan Wayne County Airport (DTW) to Perth Airport (PER)?
There are no daily direct flights departing from Detroit Metropolitan Wayne County Airport (DTW) to Perth Airport (PER). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from DTW to PER?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a number of factors, such as the time of year and airline.*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 Perth Airport (PER)?
To touch down at Perth Airport (PER) without delays, pick a flight that leaves 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 Perth Airport (PER) last-minute?
Holding off until just before your departure to book a ticket from DTW to PER often results in higher prices. Although you may find some last-minute offers, they're not always guaranteed. Be flexible with your travel plans for the best chance of scoring a bargain.
Is it cheaper to book a DTW to PER flight and hotel package?
Securing a DTW to PER flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our extensive range of hotels and then add activities, flights 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 Perth Airport (PER)?
If you booked your DTW to PER flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

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*Available to One Key members.