DTT - SYD

$621 Find Cheap Flights from Detroit to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Detroit to Sydney departing on 23/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Detroit to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Detroit to Sydney, as well as popular online travel agencies
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Cheap Flights from Detroit to Sydney (DTT-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Detroit to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Detroit to Sydney

Thu, 14 Aug - Tue, 9 Sep
Air Canada Logo
09:55 - 07:20DTW-SYD
31h 25m2 stops
Air Canada Logo
09:20 - 21:29SYD-DTW
26h 09m2 stops
$1,224Air Canada
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Sat, 16 Aug - Thu, 25 Sep
Air Canada Logo
20:35 - 07:20DTW-SYD
44h 45m2 stops
Air Canada Logo
09:20 - 21:29SYD-DTW
26h 09m2 stops
$1,229Air Canada
Find Deal
Sat, 16 Aug - Wed, 10 Sep
Air Canada Logo
20:35 - 07:20DTW-SYD
44h 45m2 stops
Air Canada Logo
09:20 - 21:29SYD-DTW
26h 09m2 stops
$1,232Air Canada
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Mon, 1 Sep - Sun, 14 Sep
Qantas Airways Logo
19:44 - 06:55DTW-SYD
21h 11m1 stop
Qantas Airways Logo
12:10 - 22:33SYD-DTW
24h 23m1 stop
$1,251Qantas Airways
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Mon, 1 Sep - Mon, 15 Sep
Qantas Airways Logo
19:44 - 06:55DTW-SYD
21h 11m1 stop
Qantas Airways Logo
12:10 - 22:33SYD-DTW
24h 23m1 stop
$1,265Qantas Airways
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Wed, 24 Sep - Tue, 7 Oct
United Airlines Logo
09:01 - 07:00DTW-SYD
31h 59m2 stops
United Airlines Logo
11:20 - 16:40SYD-DTW
20h 20m1 stop
$1,273United Airlines
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Wed, 24 Sep - Tue, 7 Oct
Delta Logo
12:30 - 06:35DTW-SYD
28h 05m2 stops
Delta Logo
10:25 - 18:49SYD-DTW
23h 24m2 stops
$1,276Delta
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Fri, 12 Sep - Fri, 19 Sep
 Logo
16:53 - 07:20DTW-SYD
24h 27m2 stops
 Logo
09:20 - 15:27SYD-DTW
44h 07m2 stops
$1,288
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Thu, 4 Sep - Thu, 18 Sep
United Airlines Logo
17:32 - 06:55DTW-SYD
23h 23m1 stop
United Airlines Logo
09:30 - 22:22SYD-DTW
26h 52m2 stops
$1,290United Airlines
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Mon, 1 Sep - Mon, 15 Sep
Delta Logo
12:20 - 06:35DTW-SYD
28h 15m2 stops
Delta Logo
09:25 - 20:45SYD-DTW
25h 20m2 stops
$1,297Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Detroit to Sydney flights

Get data-powered insights and trends into flights from Detroit to Sydney to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Detroit to Sydney?

The average price of all round-trip flights from Detroit to Sydney clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Detroit to Sydney, look for departures on Wednesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Sydney, Thursday is the cheapest day to fly and Saturday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Detroit to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Detroit to Sydney is February, where tickets cost $1,442 (return) on average. On the other hand, the most expensive months are September and December, where the average cost of round-trip tickets is $2,129 and $1,920 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Detroit to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Detroit to Sydney, you should book around 2 weeks before departure, which saves you about 7% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.


Good to know

Low seasonApril
Cheapest flight$621
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (16% more expensive on average)
Flight from Detroit to Sydney

When to book flights from Detroit to Sydney

Are your dates flexible? Find out the best times to travel from Detroit to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Detroit to Sydney

  • What is the cheapest flight from Detroit to Sydney?

    In the last 3 days, the lowest price for a flight from Detroit to Sydney was $400 for a one-way ticket and $789 for a return.

  • Which airports will I be using when flying from Detroit to Sydney?

    When flying out of Detroit you will be using Detroit Metropolitan Wayne County. You will be landing at Sydney, also known as Sydney Kingsford Smith.

  • Which aircraft models fly most regularly from Detroit to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Detroit to Sydney?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Detroit and Sydney, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Detroit to Sydney, Qantas Airways or United Airlines?

    The two airlines most popular with KAYAK users for flights from Detroit to Sydney are Qantas Airways and United Airlines. With an average price for the route of $1,823 and an overall rating of 7.5, Qantas Airways is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,793 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Detroit to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Detroit to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Detroit to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Detroit is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Detroit to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Sydney with an airline and back to Detroit with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Detroit to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Detroit up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Detroit to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Detroit to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Detroit to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Qantas AirwaysOverall score based on 887 reviews
6.9Food
7.2Entertainment
7.7Boarding
8.2Crew
7.4Comfort
Airline reviews

Business class points redemption - good value for points paid, dubious value if out of your own pocket, domestic class business product okay for this length of flight. The flight left and arrived on time, crew were good, aircraft was a bit old and tired, but still miles ahead of their competitors in Virgin and Jetstar.

8.0 ExcellentMarcus, July 2025SYD - ADL
Read more Qantas Airways reviews

Business class points redemption - good value for points paid, dubious value if out of your own pocket, domestic class business product okay for this length of flight. The flight left and arrived on time, crew were good, aircraft was a bit old and tired, but still miles ahead of their competitors in Virgin and Jetstar.

Airline running better than post Covid, proper boarding process now implemented, some aircraft feeling a bit old and tired, crew fine, online experience better.

Five hour flight instead of four hours due to westerly headwinds which wasn’t the fault of Qantas !

The wifi was out. Otherwise it was great flight. Richard, as CSM, was excellent.

Was bumped to a later flight because of inefficiency on part of the airline.

The Emerits/Qantas flight was cancelled to Wellington. We need a refund. Had to buy another airline ticket. How do we get the refund. Still not in Wellington.

Delayed QF59 flight once again, Qantas doesn't fail in maintaining there delayed departures and arrivals. USB points do not work nor do the power point sockets on the plane, Qantas staff admitted that on the flight. Don't expect to your charge devices. Saving grace, was the ice cream. Bottom line, if you expect to fly to HND and make it on time avoid Qantas and if you're interested in ice cream - visit 7/11.

Pretty excellent. I don’t know what the pilot could have done better with the bumping ( there was a storm) nor what happened to my ears coming down into bendigo. It doesn’t happen coming down into Sydney just the return flight. I wonder why?

Loved the staff. The economy seats could have been bigger.

Airport and crew experience was excellent. We had to queue for the runway - no one’s fault, but it did mean we were 30 minutes late leaving

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Everything you need to know for your flight from Detroit to Sydney

Information on your arrival and departure airports

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