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$1,240+ Cheap flights from Dayton (DAY) to Sydney (SYD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — SYD
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Dayton to Sydney

Best flights from Dayton to Sydney
Discover carefully curated flight deals from Dayton to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

This United Airlines deal was found by Cheapflights users on 12/20. 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.
Wed 2/410:24 amDAY - SYD
2 stops27h 56mUnited Airlines
Sun 2/811:50 amSYD - DAY
2 stops24h 32mUnited Airlines
Deal found 12/20$1,275
This Delta deal was found by Cheapflights users on 12/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/196:00 amDAY - SYD
2 stops33h 05mDelta
Mon 3/231:15 pmSYD - DAY
2 stops36h 31mDelta
Deal found 12/21$1,275
This American Airlines deal was found by Cheapflights users on 12/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/192:01 pmDAY - SYD
1 stop25h 54mAmerican Airlines
Mon 3/231:05 pmSYD - DAY
1 stop20h 37mAmerican Airlines
Deal found 12/21$2,098
This oojo deal was found by Cheapflights users on 12/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/236:14 pmDAY - SYD
2 stops25h 41mQantas Airways
Fri 2/132:05 pmSYD - DAY
1 stop20h 39mQantas Airways
Deal found 12/20$2,350
This Air Canada deal was found by Cheapflights users on 12/21. 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.
Thu 3/1910:50 amDAY - SYD
3 stops30h 45mMultiple Airlines
Mon 3/2310:25 amSYD - DAY
2 stops27h 05mMultiple Airlines
Deal found 12/21$2,370
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Fri 1/235:47 pmDAY - SYD
2 stops45h 13mUnited Airlines
Fri 2/1311:50 amSYD - DAY
2 stops27h 53mUnited Airlines
Deal found 12/21$1,442
This Delta deal was found by Cheapflights users on 12/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/236:00 amDAY - SYD
2 stops34h 30mDelta
Fri 2/1310:40 amSYD - DAY
2 stops28h 03mDelta
Deal found 12/20$1,699

Find flight deals from Dayton to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Dayton (DAY) to Sydney (SYD). 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 December 23, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$1,275
(United Airlines)

One-way from

$1,240
(Kiwi.com)

Popular in

April

Cheapest in

November

Average price

$1,640
Provider with most accurate pricing for Dayton-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dayton-Sydney Kingsford Smith flights.
Search Deals
From Dayton to Sydney Kingsford Smith
Search Deals
One-way flight from Dayton to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($577 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease ($227 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dayton to Sydney 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 2,558,603 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Dayton to Sydney that are best for you.

Fly from

Dayton

Fly to

Sydney

Route

Depart

Return

Price

DaytonSydney

DAY - SYD

DAYSYD

Dayton

Wed 2/4

10:24 am-6:20 am

2 stops27h 56m

Sydney Kingsford Smith

Sun 2/8

11:50 am-8:22 pm

2 stops24h 32m

$1,275

DaytonSydney

DAY - SYD

DAYSYD

Dayton

Thu 3/19

6:00 am-6:05 am

2 stops33h 05m

Sydney Kingsford Smith

Mon 3/23

1:15 pm-10:46 am

2 stops36h 31m

$1,275

DaytonSydney

DAY - SYD

DAYSYD

Dayton

Fri 1/23

5:47 pm-7:00 am

2 stops45h 13m

Sydney Kingsford Smith

Fri 2/13

11:50 am-11:43 pm

2 stops27h 53m

$1,442

DaytonSydney

DAY - SYD

DAYSYD

Dayton

Fri 1/23

6:00 am-8:30 am

2 stops34h 30m

Sydney Kingsford Smith

Fri 2/13

10:40 am-10:43 pm

2 stops28h 03m

$1,699

DaytonSydney

DAY - SYD

DAYSYD

Dayton

Thu 3/19

2:01 pm-6:55 am

1 stop25h 54m

Sydney Kingsford Smith

Mon 3/23

1:05 pm-6:42 pm

1 stop20h 37m

$2,098

DaytonSydney

DAY - SYD

DAYSYD

Dayton

Fri 1/23

6:14 pm-11:55 am

2 stops25h 41m

Sydney Kingsford Smith

Fri 2/13

2:05 pm-6:44 pm

1 stop20h 39m

$2,350

DaytonSydney

DAY - SYD

DAYSYD

Dayton

Thu 3/19

10:50 am-8:35 am

3 stops30h 45m

Sydney Kingsford Smith

Mon 3/23

10:25 am-10:30 pm

2 stops27h 05m

$2,370

DaytonSydney

DAY - SYD

DAYSYD

Dayton

Mon 1/5

5:40 pm-7:45 pm

3 stops58h 05m

$1,240

DaytonSydney

DAY - SYD

DAYSYD

Dayton

Mon 1/5

7:07 am-6:55 am

1 stop31h 48m

$1,417

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Compare providers for flights from Dayton to Sydney

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 Dayton to Sydney in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Dayton-Sydney flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Dayton-Sydney flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Dayton-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Dayton-Sydney flights, Cheapflights users trust Justfly.com the most. Justfly.com 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 Dayton-Sydney 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 Dayton to Sydney

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

What is the cheapest month to book a flight from Dayton to Sydney?

Currently, September is the cheapest month in which you can book a flight from Dayton to Sydney (average of $326). Flying from Dayton to Sydney in December is currently the most expensive (average of $1,253). 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.

What is the cheapest time of day to fly from DAY to SYD?

Find hourly flight availability from Dayton to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

When flying from Dayton to Sydney, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 72% versus a flight in the evening.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated December 23, 2025.
Read reviews from past customers who have flown United Airlines and American Airlines from Dayton to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,105 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,105 reviews
United Airlines
7.4
Good
9,105 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,054 reviews
United Airlines
7.4
Good
9,105 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from Dayton to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Dayton to Sydney?

    For as low as $1,275, United Airlines can have you in Sydney from Dayton in 27h 56m. Dayton and Sydney are separated by a distance of 9392 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Dayton to Sydney round-trip?

    Currently priced at $937, United Airlines will fly you from Dayton to Sydney and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on American Airlines for as low as $1,280. United Airlines is priced at 42% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Dayton to Sydney that include hotel bookings?

    Yes. In addition to deals on Dayton to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dayton to Sydney?

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

  • Can I find deals for business class flights from Dayton to Sydney?

    Yes. Cheapflights offers flight deals from Dayton to Sydney 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 Dayton to Sydney?

    Currently, September is the cheapest month in which you can book a flight from Dayton to Sydney (average of $326). Flying from Dayton to Sydney in December is currently the most expensive (average of $1,253). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly
Coogee

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Dayton to Sydney

Discover the top 2 airlines that operate flights from Dayton to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$937Average$1,311FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,280Average$1,447FlexibilityNo cancel feeOn-time71%

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