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Cheap flights from Detroit to Perth from $1,112

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to Perth departing on 14/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Detroit to Perth

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:40 - 06:50DTW  Detroit Metropolitan Wayne County-PER Perth
36h 10m2 stops Chicago O'Hare Intl Hong Kong Intl
Multiple Airlines Logo
00:10 - 23:43PER  Perth-DTW Detroit Metropolitan Wayne County
35h 33m2 stops Hong Kong Intl Dallas/Fort Worth
$1,988Multiple Airlines
Tue, 8 Sep - Mon, 14 Sep
Multiple Airlines Logo
14:55 - 15:25DTW  Detroit Metropolitan Wayne County-PER Perth
36h 30m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
13:15 - 14:12PER  Perth-DTW Detroit Metropolitan Wayne County
60h 57m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$2,185Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Cathay Pacific Logo
12:56 - 06:50DTW  Detroit Metropolitan Wayne County-PER Perth
29h 54m2 stops Chicago O'Hare Intl Hong Kong Intl
Cathay Pacific Logo
00:10 - 19:36PER  Perth-DTW Detroit Metropolitan Wayne County
31h 26m2 stops Hong Kong Intl Chicago O'Hare Intl
$2,253Cathay Pacific
Fri, 25 Sep - Thu, 1 Oct
Multiple Airlines Logo
06:00 - 18:45DTW  Detroit Metropolitan Wayne County-PER Perth
47h 45m2 stops New York John F Kennedy Intl Doha Hamad Intl
Multiple Airlines Logo
22:45 - 15:48PER  Perth-DTW Detroit Metropolitan Wayne County
54h 03m2 stops Doha Hamad Intl Seattle/Tacoma Intl
$2,392Multiple Airlines
Sun, 24 Jan - Fri, 5 Feb
United Airlines Logo
07:00 - 12:30DTW  Detroit Metropolitan Wayne County-PER Perth
40h 30m2 stops San Francisco Brisbane
United Airlines Logo
23:45 - 20:40PER  Perth-DTW Detroit Metropolitan Wayne County
33h 55m2 stops Melbourne San Francisco
$2,471United Airlines
Tue, 26 Jan - Tue, 9 Mar
United Airlines Logo
10:59 - 11:20DTW  Detroit Metropolitan Wayne County-PER Perth
35h 21m2 stops Houston George Bush Intcntl Sydney Kingsford Smith
United Airlines Logo
07:20 - 20:40PER  Perth-DTW Detroit Metropolitan Wayne County
26h 20m2 stops Adelaide San Francisco
$2,478United Airlines
Tue, 26 Jan - Wed, 3 Feb
United Airlines Logo
10:59 - 11:20DTW  Detroit Metropolitan Wayne County-PER Perth
35h 21m2 stops Houston George Bush Intcntl Sydney Kingsford Smith
United Airlines Logo
22:30 - 20:40PER  Perth-DTW Detroit Metropolitan Wayne County
35h 10m2 stops Brisbane San Francisco
$2,479United Airlines
Mon, 25 Jan - Mon, 8 Feb
United Airlines Logo
10:59 - 11:20DTW  Detroit Metropolitan Wayne County-PER Perth
35h 21m2 stops Houston George Bush Intcntl Sydney Kingsford Smith
United Airlines Logo
23:45 - 20:40PER  Perth-DTW Detroit Metropolitan Wayne County
33h 55m2 stops Melbourne San Francisco
$2,484United Airlines
Mon, 25 Jan - Tue, 2 Feb
United Airlines Logo
07:00 - 11:20DTW  Detroit Metropolitan Wayne County-PER Perth
39h 20m2 stops San Francisco Sydney Kingsford Smith
United Airlines Logo
23:45 - 20:40PER  Perth-DTW Detroit Metropolitan Wayne County
33h 55m2 stops Melbourne San Francisco
$2,485United Airlines
Tue, 26 Jan - Tue, 9 Mar
United Airlines Logo
10:59 - 11:20DTW  Detroit Metropolitan Wayne County-PER Perth
35h 21m2 stops Houston George Bush Intcntl Sydney Kingsford Smith
United Airlines Logo
15:15 - 13:45PER  Perth-DTW Detroit Metropolitan Wayne County
35h 30m2 stops Sydney Kingsford Smith Houston George Bush Intcntl
$2,487United Airlines
Mon, 25 Jan - Sat, 6 Feb

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Cathay Pacific flights from Detroit to Perth

Our best Cathay Pacific deals on Detroit to Perth flight tickets
Cathay Pacific
25 Sept
DTW12:56Detroit Metropolitan Wayne County
29h 54m
2 stops
PER06:50Perth
1 Oct
PER00:10Perth
31h 26m
2 stops
DTW19:36Detroit Metropolitan Wayne County
$2,253
Cathay Pacific
22 Oct
DTW13:30Detroit Metropolitan Wayne County
29h 20m
2 stops
PER06:50Perth
26 Oct
PER08:30Perth
57h 10m
2 stops
DTW05:40Detroit Metropolitan Wayne County
$2,775
Cathay Pacific
15 Aug
DTW18:50Detroit Metropolitan Wayne County
48h 00m
2 stops
PER06:50Perth
28 Aug
PER00:10Perth
30h 00m
2 stops
DTW18:10Detroit Metropolitan Wayne County
$2,921

Qantas Airways flights from Detroit to Perth

Our best Qantas Airways deals on Detroit to Perth flight tickets
Qantas Airways
26 Jan
DTW17:35Detroit Metropolitan Wayne County
33h 25m
2 stops
PER16:00Perth
9 Mar
PER23:10Perth
31h 35m
2 stops
DTW17:45Detroit Metropolitan Wayne County
$2,518
Qantas Airways
22 Jan
DTW16:36Detroit Metropolitan Wayne County
30h 54m
2 stops
PER12:30Perth
4 Feb
PER23:10Perth
29h 36m
2 stops
DTW15:46Detroit Metropolitan Wayne County
$2,526
Qantas Airways
22 Jan
DTW16:36Detroit Metropolitan Wayne County
30h 54m
2 stops
PER12:30Perth
6 Feb
PER17:00Perth
35h 46m
2 stops
DTW15:46Detroit Metropolitan Wayne County
$2,529

momondo Fare Finder

 
Customise your flight search to find flights from Detroit to Perth 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, momondo users made 78,305 searches. Data last updated 11 August 2026.
Use the filters below to find and compare flights from Detroit to Perth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DetroitPerth

DTW Detroit Metropolitan Wayne County - PER Perth

DTWPER

Detroit Metropolitan Wayne County

Tue 8/9

06:40-06:50

2 stops36h 10m

Perth

Mon 14/9

00:10-23:43

2 stops35h 33m

$1,988

DetroitPerth

DTW Detroit Metropolitan Wayne County - PER Perth

DTWPER

Detroit Metropolitan Wayne County

Tue 8/9

14:55-15:25

3 stops36h 30m

Perth

Tue 15/9

13:15-14:12

3 stops60h 57m

$2,185
Fastest return journey

DetroitPerth

DTW Detroit Metropolitan Wayne County - PER Perth

DTWPER

Detroit Metropolitan Wayne County

Fri 25/9

12:56-06:50

2 stops29h 54m

Perth

Thu 1/10

00:10-19:36

2 stops31h 26m

$2,253

DetroitPerth

DTW Detroit Metropolitan Wayne County - PER Perth

DTWPER

Detroit Metropolitan Wayne County

Sun 24/1

06:00-18:45

2 stops47h 45m

Perth

Fri 5/2

22:45-15:48

2 stops54h 03m

$2,392

DetroitPerth

DTW Detroit Metropolitan Wayne County - PER Perth

DTWPER

Detroit Metropolitan Wayne County

Tue 26/1

07:00-12:30

2 stops40h 30m

Perth

Tue 9/3

23:45-20:40

2 stops33h 55m

$2,471

DetroitPerth

DTW Detroit Metropolitan Wayne County - PER Perth

DTWPER

Detroit Metropolitan Wayne County

Tue 26/1

10:59-11:20

2 stops35h 21m

Perth

Wed 3/2

07:20-20:40

2 stops26h 20m

$2,478

DetroitPerth

DTW Detroit Metropolitan Wayne County - PER Perth

DTWPER

Detroit Metropolitan Wayne County

Mon 25/1

10:59-11:20

2 stops35h 21m

Perth

Mon 8/2

22:30-20:40

2 stops35h 10m

$2,479

DetroitPerth

DTW Detroit Metropolitan Wayne County - PER Perth

DTWPER

Detroit Metropolitan Wayne County

Mon 25/1

10:59-11:20

2 stops35h 21m

Perth

Tue 2/2

23:45-20:40

2 stops33h 55m

$2,484

DetroitPerth

DTW Detroit Metropolitan Wayne County - PER Perth

DTWPER

Detroit Metropolitan Wayne County

Tue 26/1

07:00-11:20

2 stops39h 20m

Perth

Tue 9/3

23:45-20:40

2 stops33h 55m

$2,485

DetroitPerth

DTW Detroit Metropolitan Wayne County - PER Perth

DTWPER

Detroit Metropolitan Wayne County

Mon 25/1

10:59-11:20

2 stops35h 21m

Perth

Sat 6/2

15:15-13:45

2 stops35h 30m

$2,487

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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When to book flights from Detroit to Perth

Are you open to changing your travel dates? Check out the ideal times to fly from Detroit to Perth according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Detroit to Perth (DTT to PER) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Detroit to Perth

Fastest flight time

29h 20m

Direct flights

None
The fastest flight from Detroit to Perth takes 29h 20m
There are no direct flights from Detroit to Perth. There are no popular flight routes from Detroit to Perth.
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Frequently asked questions about flying from Detroit to Perth

  • How far is Detroit to Perth by plane?

    Perth is 17974.5 km away from Detroit. 29h 20m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Detroit to Perth Airport?

    Prices for flights from Detroit to Perth Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Detroit to Perth Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Detroit to Perth Airport.

  • What documentation or ID do you need to fly to Perth Airport?

    The necessary travel and health documents for your Perth Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Detroit to Perth

  • How do I get Price Alerts for flights from Detroit to Perth?

    Confirm your travel details to search for the latest offers for flights from Detroit to Perth. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Detroit to Perth with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Travelling to a place near Perth?

Book flights to Perth if you plan to visit one of these locations
Mandurah
Fremantle
Scarborough
Rottnest Island

Why use momondo?

Why should I use momondo to find a flight deal from Detroit to Perth?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Detroit to Perth . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Detroit to Perth with flexible booking policies on momondo?

Flights from Detroit to Perth with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Detroit to Perth?

momondo provides multiple filters to help you find the best flight to Perth from Detroit. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Detroit to Perth right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Perth, momondo offers a useful price alert feature which will track prices for flights to Perth from Detroit and alert you when they change.

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