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$509+ Cheap flights from Denver (DEN) 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Sydney Kingsford Smith are usually found in April or March, booked 4 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Denver to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) 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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$837
(Gurufare)

One-way from

$509
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$892
Provider with most accurate pricing for Denver Intl-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Sydney Kingsford Smith flights.
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From Denver Intl to Sydney Kingsford Smith
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One-way flight from Denver Intl to Sydney Kingsford Smith
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Highest demand for flights based on searches. 11% potential increase in price ($149 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Denver to Sydney

Cheapest flights from Denver to Sydney
Explore the most affordable flight options available from Denver to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

This Gurufare deal was found by Cheapflights users on 3/24. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/272:45 pmDEN - SYD
1 stop24h 10mQantas Airways
Tue 6/39:10 amSYD - DEN
1 stop19h 03mQantas Airways
Deal found 3/24$837
This Trip.com deal was found by Cheapflights users on 3/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/226:00 amDEN - SYD
2 stops37h 45mMultiple Airlines
Tue 4/291:15 pmSYD - DEN
2 stops25h 54mMultiple Airlines
Deal found 3/24$876
This Air Canada deal was found by Cheapflights users on 3/25. 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.
Tue 5/1311:23 amDEN - SYD
2 stops27h 57mAir Canada
Tue 6/109:20 amSYD - DEN
2 stops24h 41mAir Canada
Deal found 3/25$1,036
This Fiji Airways deal was found by Cheapflights users on 3/25. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:51 pmDEN - SYD
2 stops25h 24mFiji Airways
Sat 11/82:30 pmSYD - DEN
2 stops23h 28mFiji Airways
Deal found 3/25$1,191
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2812:35 pmDEN - SYD
2 stops25h 50mAlaska Airlines
Mon 11/105:25 pmSYD - DEN
2 stops35h 07mAlaska Airlines
Deal found 3/24$1,299
This Fareboom deal was found by Cheapflights users on 3/24. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/277:00 pmDEN - SYD
2 stops21h 45mAir New Zealand
Tue 6/2411:50 amSYD - DEN
2 stops23h 50mAir New Zealand
Deal found 3/24$1,340
This American Airlines deal was found by Cheapflights users on 3/25. 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.
Tue 5/2712:58 pmDEN - SYD
1 stop26h 07mAmerican Airlines
Tue 6/249:10 amSYD - DEN
2 stops24h 58mAmerican Airlines
Deal found 3/25$1,345
This United Airlines deal was found by Cheapflights users on 3/25. 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.
Tue 6/247:00 pmDEN - SYD
1 stop19h 55mUnited Airlines
Sun 7/69:30 amSYD - DEN
1 stop24h 38mUnited Airlines
Deal found 3/25$1,356
This Delta deal was found by Cheapflights users on 3/25. 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.
Tue 6/2412:51 pmDEN - SYD
2 stops25h 44mDelta
Sun 7/69:25 amSYD - DEN
2 stops28h 51mDelta
Deal found 3/25$1,370
This KAYAK deal was found by Cheapflights users on 3/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/291:29 pmDEN - SYD
2 stops37h 46mANA
Tue 10/79:45 pmSYD - DEN
2 stops40h 44mANA
Deal found 3/25$1,578
This Turkish Airlines deal was found by Cheapflights users on 3/25. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/287:50 pmDEN - SYD
2 stops55h 10mTurkish Airlines
Fri 10/109:55 pmSYD - DEN
2 stops37h 00mTurkish Airlines
Deal found 3/25$1,671
This Singapore Airlines deal was found by Cheapflights users on 3/25. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/26:00 amDEN - SYD
2 stops31h 55mSingapore Airlines
Tue 9/306:05 pmSYD - DEN
3 stops41h 16mSingapore Airlines
Deal found 3/25$1,866

Cheapflights Fare Finder

Customize your flight search to find flights from Denver 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 March 26, 2025.
Use the filters below to find and compare flights from Denver to Sydney that are best for you.

Fly from

Denver

Fly to

Sydney

Route

Depart

Return

Price

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 5/27

2:45 pm-6:55 am

1 stop24h 10m

Sydney Kingsford Smith

Tue 6/3

9:10 am-12:13 pm

1 stop19h 03m

$837

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 4/22

6:00 am-11:45 am

2 stops37h 45m

Sydney Kingsford Smith

Tue 4/29

1:15 pm-11:09 pm

2 stops25h 54m

$876

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 5/13

11:23 am-7:20 am

2 stops27h 57m

Sydney Kingsford Smith

Tue 6/10

9:20 am-6:01 pm

2 stops24h 41m

$1,036

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 5/27

7:00 pm-8:45 am

2 stops21h 45m

Sydney Kingsford Smith

Tue 6/24

11:50 am-7:40 pm

2 stops23h 50m

$1,340

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 5/27

12:58 pm-7:05 am

1 stop26h 07m

Sydney Kingsford Smith

Tue 6/24

9:10 am-6:08 pm

2 stops24h 58m

$1,345

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 5/27

4:30 pm-11:45 am

2 stops27h 15m

Sydney Kingsford Smith

Tue 6/24

1:15 pm-8:01 pm

2 stops22h 46m

$1,360

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 5/9

7:55 pm-7:45 pm

2 stops31h 50m

Sydney Kingsford Smith

Fri 5/16

9:40 pm-4:49 pm

2 stops35h 09m

$1,361

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 5/3

9:21 pm-7:00 am

1 stop41h 39m

Sydney Kingsford Smith

Fri 5/16

10:20 am-11:12 pm

2 stops28h 52m

$1,570

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 4/24

6:59 pm-6:35 am

1 stop19h 36m

Sydney Kingsford Smith

Thu 5/1

9:25 am-6:19 pm

1 stop24h 54m

$1,615

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 4/5

7:50 pm-7:00 pm

2 stops55h 10m

Sydney Kingsford Smith

Fri 4/11

8:55 pm-5:55 pm

2 stops37h 00m

$1,836

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 22 results
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Compare providers for flights from Denver 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 Denver to Sydney in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 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 Denver-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Sydney 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 Denver-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 Denver to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Denver 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 Denver to Sydney

How far ahead should I book a flight from Denver to Sydney?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Sydney. Price data was last updated on March 21, 2025.

The price you pay for your flight from Denver to Sydney may vary depending on when you book. For the best chance of a lower fare, look to book 4 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Denver to Sydney (average of $1,044). Flying from Denver to Sydney in December is currently the most expensive (average of $1,643). 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 DEN to SYD?

Find hourly flight availability from Denver 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 March 26, 2025.

A simple way to save on the total cost of your ticket is to fly from Denver to Sydney at noon. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Denver to Sydney?

Use this chart to determine the cheapest time to fly round-trip from Denver to Sydney. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Denver to Sydney flight should consider departing on Saturday at noon when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

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 March 26, 2025.
See what other customers who have flown with Air Tahiti Nui, China Airlines and Fiji Airways from Denver to Sydney have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Entertainment

7.2

Food

7.8

Boarding

8.7

Overall

8.7

Comfort

8.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.7
Very good
61 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Entertainment

7.2

Food

7.8

Boarding

8.7

Overall

8.7

Comfort

8.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
China Airlines
8.2
Very good
722 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Entertainment

7.2

Food

7.8

Boarding

8.7

Overall

8.7

Comfort

8.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Fiji Airways
8.0
Very good
182 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Entertainment

7.2

Food

7.8

Boarding

8.7

Overall

8.7

Comfort

8.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Delta
8.0
Very good
7,891 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Entertainment

7.2

Food

7.8

Boarding

8.7

Overall

8.7

Comfort

8.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Alaska Airlines
8.0
Very good
9,789 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Entertainment

7.2

Food

7.8

Boarding

8.7

Overall

8.7

Comfort

8.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Related info for your journey

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

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

    Currently priced at $837, Qantas Airways will fly you from Denver to Sydney and back. In addition to Qantas Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and Air New Zealand - these airlines can fly you to your destination from $1,036 and $1,340, respectively. These flights start at 26% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Denver to Sydney one-way?

    The cheapest airline one-way is Fiji Airways, with whom users have recently found tickets for as low as $625. However, be on the lookout for offers from Air Canada and Qantas Airways, as they are both options that can get you from Denver to Sydney for a low price.

  • Where are the most common layover locations when flying from Denver to Sydney?

    Most of the time, Denver to Sydney flights that have layovers will stop in Los Angeles. Vancouver sees the second most layovers for non-direct flights flying from Denver to Sydney.

  • What are some popular things to do or see while on a layover in Los Angeles?

    Hollywood Bowl, Hollywood Walk of Fame, and L.A. Live are the most popular attractions in Los Angeles if you're in need of something to do during your layover. Hollywood Bowl, Hollywood Walk of Fame, and L.A. Live are located about 12.5 mi, 11.7 mi, and 10.8 mi, respectively from Los Angeles. Travelers in need of a car in Los Angeles can rent one for about $38 per day.

  • What are some popular points of interest to see during a layover in Vancouver?

    Pacific Central Station, Queen Elizabeth Theatre, and Vancouver Harbour Centre are the most popular attractions in Vancouver if you're in need of something to do during your layover. Pacific Central Station, Queen Elizabeth Theatre and Vancouver Harbour Centre are located about 6.6 mi, 6.6 mi, and 6.9 mi, respectively from Vancouver Intl if you are interested in checking them out. Those landing in Vancouver looking to spend some time exploring during their layover can rent a car for about $34 per day.

  • Where are the least popular layover locations for Denver to Sydney flights?

    Flights departing from Denver and landing in Sydney layover in San Francisco least frequently.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Denver to Sydney (average of $1,044). Flying from Denver to Sydney in December is currently the most expensive (average of $1,643). 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 Denver?

Book flights to Denver if you plan to visit one of these locations
Wollongong
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Coogee
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Alternative routes for Denver to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Denver to Sydney

Discover the top 7 airlines that operate flights from Denver 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$768Average$856FlexibilityNo cancel feeOn-time75%
Qantas AirwaysCheapest$811Average$971FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$827Average$868FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$834Average$1,593FlexibilityNo cancel feeOn-time78%
DeltaCheapest$848Average$1,319FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$949Average$1,245FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,079Average$1,485FlexibilityNo cancel feeOn-time69%
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