$1,396+ Cheap flights from Detroit (DTT) to Perth (PER)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — PER
Oct 5 — Oct 121
Round-trip
1 adult, Economy
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Find cheap flights from Detroit to Perth 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.Cheap flight deals from Detroit to Perth
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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 September 5, 2026.
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 September 5, 2026.
This SmartFares deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:01 am -
2 stops35h 49m
Sun 10/48:20 am -
2 stops57h 20m
Deal found 9/2![Multiple Airlines logo]()
$1,396
This Cathay Pacific deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:36 am -
2 stops36h 14m
Fri 10/98:20 am -
2 stops47h 45m
Deal found 9/2![Multiple Airlines logo]()
$1,455
This Cathay Pacific deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:54 pm -
2 stops45h 56m
Sun 10/258:30 am -
2 stops47h 36m
Deal found 9/3![Multiple Airlines logo]()
$1,461
This Air Canada deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:15 pm -
3 stops61h 25m
Sun 10/2510:55 pm -
3 stops54h 45m
Deal found 9/3![Air Canada logo]()
$1,480
This Cathay Pacific deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:47 am -
2 stops36h 03m
Fri 10/2312:10 am -
2 stops41h 30m
Deal found 9/2![Multiple Airlines logo]()
$1,514
This Cathay Pacific deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am -
2 stops28h 40m
Tue 9/1512:10 am -
2 stops35h 33m
Deal found 8/31![Multiple Airlines logo]()
$1,836
This Qatar Airways deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:10 am -
2 stops47h 35m
Thu 11/1210:45 pm -
2 stops38h 11m
Deal found 9/3![Qatar Airways logo]()
$1,920
This United Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:00 am -
2 stops43h 40m
Sun 10/2510:30 pm -
2 stops29h 39m
Deal found 9/3![United Airlines logo]()
$1,928
This United Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/148:25 am -
2 stops41h 20m
Mon 1/47:20 am -
2 stops36h 29m
Deal found 9/1![United Airlines logo]()
$2,071
Best flights from Detroit to PerthDiscover carefully curated flight deals from Detroit to Perth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
Discover carefully curated flight deals from Detroit to Perth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
This Cathay Pacific deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:36 am -
2 stops36h 14m
Fri 10/98:20 am -
2 stops47h 45m
Deal found 9/2![Multiple Airlines logo]()
$1,455
This Qatar Airways deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:10 am -
2 stops47h 35m
Thu 11/1210:45 pm -
2 stops38h 11m
Deal found 9/4![Qatar Airways logo]()
$1,920
This United Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:00 am -
2 stops43h 40m
Sun 10/2510:30 pm -
2 stops29h 39m
Deal found 9/3![United Airlines logo]()
$1,928
This Cathay Pacific deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:54 pm -
2 stops45h 56m
Sun 10/258:30 am -
2 stops47h 36m
Deal found 9/3![Multiple Airlines logo]()
$1,461
This Cathay Pacific deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:47 am -
2 stops36h 03m
Fri 10/2312:10 am -
2 stops41h 30m
Deal found 9/2![Multiple Airlines logo]()
$1,514
This United Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/148:25 am -
2 stops41h 20m
Mon 1/47:20 am -
2 stops36h 29m
Deal found 9/1![United Airlines logo]()
$2,071
This BusinessClass deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/12:49 pm -
2 stops34h 21m
Sun 3/1411:10 pm -
3 stops36h 32m
Deal found 9/4![Qantas Airways logo]()
$7,193
This Cathay Pacific deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/19:24 pm -
2 stops44h 31m
Sun 3/148:30 am -
2 stops47h 36m
Deal found 9/4![Multiple Airlines logo]()
$5,788
This KLM deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/146:10 pm -
1 stop26h 50m
Mon 1/410:30 am -
2 stops45h 35m
Deal found 9/1![Multiple Airlines logo]()
$10,084
Last-minute flights from Detroit to PerthDiscover last-minute flight deals from Detroit to Perth. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Detroit to Perth. Data last updated September 5, 2026 and is based on user searches.
This Cathay Pacific deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am -
2 stops28h 40m
Tue 9/1512:10 am -
2 stops35h 33m
Deal found 8/31![Multiple Airlines logo]()
$1,836
This SmartFares deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:01 am -
2 stops35h 49m
Sun 10/48:20 am -
2 stops57h 20m
Deal found 9/2![Multiple Airlines logo]()
$1,396
This Cathay Pacific deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:36 am -
2 stops36h 14m
Fri 10/98:20 am -
2 stops47h 45m
Deal found 9/2![Multiple Airlines logo]()
$1,455
This Cathay Pacific deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:47 am -
2 stops36h 03m
Fri 10/2312:10 am -
2 stops41h 30m
Deal found 9/2![Multiple Airlines logo]()
$1,514
This Cathay Pacific deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:54 pm -
2 stops45h 56m
Sun 10/258:30 am -
2 stops47h 36m
Deal found 9/3![Multiple Airlines logo]()
$1,461
This Air Canada deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:15 pm -
3 stops61h 25m
Sun 10/2510:55 pm -
3 stops54h 45m
Deal found 9/3![Air Canada logo]()
$1,480
This United Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:00 am -
2 stops43h 40m
Sun 10/2510:30 pm -
2 stops29h 39m
Deal found 9/3![United Airlines logo]()
$1,928
Find flight deals from Detroit to Perth
Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) to Perth (PER). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,396 (SmartFares) |
Cheapflights Fare Finder
Customize 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, Cheapflights users made 7,457,451 searches. Data last updated September 5, 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
Cheapest round-trip
DetroitPerth
DTW Detroit Metropolitan Wayne County - PER Perth
DTWPER
Detroit Metropolitan Wayne County
Thu 10/1
6:36 am-6:50 am
2 stops36h 14m
Perth
Fri 10/9
8:20 am-8:05 pm
2 stops47h 45m
$1,455
DetroitPerth
DTW Detroit Metropolitan Wayne County - PER Perth
DTWPER
Detroit Metropolitan Wayne County
Sun 10/18
8:54 pm-6:50 am
2 stops45h 56m
Perth
Sun 10/25
8:30 am-8:06 pm
2 stops47h 36m
$1,461
DetroitPerth
DTW Detroit Metropolitan Wayne County - PER Perth
DTWPER
Detroit Metropolitan Wayne County
Sat 10/17
6:47 am-6:50 am
2 stops36h 03m
Perth
Fri 10/23
12:10 am-5:40 am
2 stops41h 30m
$1,514
DetroitPerth
DTW Detroit Metropolitan Wayne County - PER Perth
DTWPER
Detroit Metropolitan Wayne County
Sun 11/8
6:10 am-6:45 pm
2 stops47h 35m
Perth
Thu 11/12
10:45 pm-11:56 pm
2 stops38h 11m
$1,920
DetroitPerth
DTW Detroit Metropolitan Wayne County - PER Perth
DTWPER
Detroit Metropolitan Wayne County
Sun 10/18
7:00 am-2:40 pm
2 stops43h 40m
Perth
Sun 10/25
10:30 pm-4:09 pm
2 stops29h 39m
$1,928
DetroitPerth
DTW Detroit Metropolitan Wayne County - PER Perth
DTWPER
Detroit Metropolitan Wayne County
Mon 12/14
8:25 am-2:45 pm
2 stops41h 20m
Perth
Mon 1/4
7:20 am-6:49 am
2 stops36h 29m
$2,071
DetroitPerth
DTW Detroit Metropolitan Wayne County - PER Perth
DTWPER
Detroit Metropolitan Wayne County
Mon 3/1
9:24 pm-6:55 am
2 stops44h 31m
Perth
Sun 3/14
8:30 am-7:06 pm
2 stops47h 36m
$5,788
Quickest round-trip
DetroitPerth
DTW Detroit Metropolitan Wayne County - PER Perth
DTWPER
Detroit Metropolitan Wayne County
Mon 3/1
2:49 pm-2:10 pm
2 stops34h 21m
Perth
Sun 3/14
11:10 pm-11:42 pm
3 stops36h 32m
$7,193
DetroitPerth
DTW Detroit Metropolitan Wayne County - PER Perth
DTWPER
Detroit Metropolitan Wayne County
Mon 12/14
6:10 pm-10:00 am
1 stop26h 50m
Perth
Mon 1/4
10:30 am-7:05 pm
2 stops45h 35m
$10,084
Sorted by cheapest first
Compare providers for flights from Detroit to Perth
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 Perth in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Detroit-Perth flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit-Perth flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit-Perth flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Detroit-Perth 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-Perth 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 Perth
Have a flexible travel schedule? Discover the best time to fly to Perth from Detroit with our price prediction graph.
DTT-PER
DTW-PER
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 Perth
DTT-PER
DTW-PER
No data available for this route at this time. Please check back soon.
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.
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