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$414+ Cheap flights from Denver (DEN) to Australia

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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Denver to Australia

Keep the following information in mind while searching for Denver to Australia flight deals. Data was last updated June 12, 2025.

Round-trip from

$836
(Cheapflightsfares)

One-way from

$429
(Justfly.com)

Popular in

December

Cheapest in

April

Average price

$902
From Denver Intl to Australia
Search Deals
One-way flight from Denver Intl to Australia
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($174 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Denver to Australia

Cheapest flights from Denver to Australia
Explore the most affordable flight options available from Denver to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Justfly.com deal was found by Cheapflights users on 6/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/285:42 pmDEN - SYD
1 stop20h 43mQantas Airways
Mon 11/1011:15 amSYD - DEN
1 stop19h 09mQantas Airways
Deal found 6/11$835
This Delta deal was found by Cheapflights users on 6/11. 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.
Sun 10/266:30 amDEN - SYD
1 stop32h 05mDelta
Wed 11/1211:05 amSYD - DEN
1 stop18h 25mDelta
Deal found 6/11$861
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2511:40 amDEN - SYD
1 stop27h 50mMultiple Airlines
Sun 9/74:20 pmSYD - DEN
2 stops35h 50mMultiple Airlines
Deal found 6/11$934
This Travelocity deal was found by Cheapflights users on 6/11. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/267:49 pmDEN - MEL
2 stops23h 41mMultiple Airlines
Wed 9/246:00 amMEL - DEN
2 stops24h 53mMultiple Airlines
Deal found 6/11$934
This Air Canada deal was found by Cheapflights users on 6/11. 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 8/57:05 pmDEN - MEL
2 stops24h 30mAir Canada
Tue 8/196:00 amMEL - DEN
2 stops22h 28mAir Canada
Deal found 6/11$940
This American Airlines deal was found by Cheapflights users on 6/11. 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 7/246:35 pmDEN - SYD
1 stop20h 20mAmerican Airlines
Thu 7/319:10 amSYD - DEN
2 stops22h 36mAmerican Airlines
Deal found 6/11$950
This Orbitz deal was found by Cheapflights users on 6/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1511:40 amDEN - AVV
2 stops36h 25mMultiple Airlines
Tue 6/178:55 pmAVV - DEN
2 stops42h 14mMultiple Airlines
Deal found 6/11$984
This Air Canada deal was found by Cheapflights users on 6/12. 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 11/211:50 amDEN - BNE
1 stop27h 50mAir Canada
Wed 11/1910:45 amBNE - DEN
1 stop22h 41mAir Canada
Deal found 6/12$1,001
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:40 amDEN - MEL
2 stops31h 25mQantas Airways
Wed 9/176:15 amMEL - DEN
2 stops20h 55mQantas Airways
Deal found 6/11$1,041
This Expedia deal was found by Cheapflights users on 6/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/128:57 pmDEN - BNE
2 stops45h 53mMultiple Airlines
Sat 10/187:45 pmBNE - DEN
2 stops31h 36mMultiple Airlines
Deal found 6/11$1,075
This Justfly.com deal was found by Cheapflights users on 6/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/184:18 pmDEN - HBA
2 stops35h 17mQantas Airways
Sun 11/304:45 pmHBA - DEN
2 stops44h 01mQantas Airways
Deal found 6/11$1,086
This Justfly.com deal was found by Cheapflights users on 6/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/71:00 pmDEN - CBR
2 stops27h 25mQantas Airways
Tue 12/237:10 pmCBR - DEN
2 stops41h 41mQantas Airways
Deal found 6/11$1,110

Cheapflights Fare Finder

Customize your flight search to find flights from Denver to Australia 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 June 12, 2025.
Use the filters below to find and compare flights from Denver to Australia that are best for you.

Fly from

Denver

Fly to

Australia

Route

Depart

Return

Price

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 10/28

5:42 pm-7:25 am

1 stop20h 43m

Sydney Kingsford Smith

Mon 11/10

11:15 am-12:24 pm

1 stop19h 09m

$835

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 10/26

6:30 am-7:35 am

1 stop32h 05m

Sydney Kingsford Smith

Wed 11/12

11:05 am-11:30 am

1 stop18h 25m

$861

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 6/25

11:40 am-7:30 am

1 stop27h 50m

Sydney Kingsford Smith

Sun 9/7

4:20 pm-12:10 pm

2 stops35h 50m

$934

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Tue 8/26

7:49 pm-11:30 am

2 stops23h 41m

Melbourne

Wed 9/24

6:00 am-2:53 pm

2 stops24h 53m

$934

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Tue 8/5

7:05 pm-11:35 am

2 stops24h 30m

Melbourne

Tue 8/19

6:00 am-12:28 pm

2 stops22h 28m

$940

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 7/24

6:35 pm-6:55 am

1 stop20h 20m

Sydney Kingsford Smith

Thu 7/31

9:10 am-3:46 pm

2 stops22h 36m

$950

DenverMelbourne

DEN - AVV

DENAVV

Denver Intl

Sun 6/15

11:40 am-4:05 pm

2 stops36h 25m

Melbourne Avalon

Tue 6/17

8:55 pm-11:09 pm

2 stops42h 14m

$984

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Sun 11/2

11:21 am-8:40 am

2 stops28h 19m

Brisbane

Wed 11/19

10:45 am-6:04 pm

2 stops24h 19m

$1,001

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Wed 9/3

11:40 am-11:05 am

2 stops31h 25m

Melbourne

Wed 9/17

6:15 am-11:10 am

2 stops20h 55m

$1,041

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Sun 10/12

8:57 pm-10:50 am

2 stops45h 53m

Brisbane

Sat 10/18

7:45 pm-11:21 am

2 stops31h 36m

$1,075

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 60 results
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Best time to book a flight from Denver to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia 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 Australia

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

Currently, March is the cheapest month in which you can book a flight from Denver to Australia (average of $1,041). Flying from Denver to Australia in December is currently the most expensive (average of $1,635). 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 AU?

Find hourly flight availability from Denver to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denver to Australia as you normally would.

Rainfall in Australia by month

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

In terms of precipitation, rainfall in Australia 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 Australia when rainfall is around 2.0 in.

Temperature in Australia by month

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

If weather is an important factor for your trip to Australia, 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 Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Denver to Australia, such as Air Tahiti Nui, Korean Air and ANA. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
64 reviews

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

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
64 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

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.
Korean Air
8.4
Very good
1,088 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

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.
ANA
8.3
Very good
882 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

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
8.1
Very good
194 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

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.
Singapore Airlines
8.1
Very good
1,302 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

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 Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to Australia?

    If you book a flight to Australia from Denver, you will be flying from Denver Intl, which is the city’s only airport. Denver Intl (DEN) is located 18.5 mi from the center of Denver.

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

    For one-way options, check prices for Qantas Airways. According to our data, you can fly for as low as $429. Users have also found prices from $447 and $958 on Delta and American Airlines, respectively.

  • What are the most popular routes from Denver to Australia?

    The most popular flight routes from Denver to Australia are Denver Intl - Sydney Kingsford Smith, Denver Intl - Melbourne and Denver Intl - Brisbane.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Denver to Australia (average of $1,041). Flying from Denver to Australia in December is currently the most expensive (average of $1,635). 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

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Alternative routes for Denver to Australia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Denver to Australia

Discover the top 8 airlines that operate flights from Denver to Australia. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$645Average$1,243FlexibilityNo cancel feeOn-time74%
Fiji AirwaysCheapest$679Average$1,283FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$686Average$1,004FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$768Average$856FlexibilityNo cancel feeOn-time75%
DeltaCheapest$830Average$1,286FlexibilityNo cancel feeOn-timeN/A
Air New ZealandCheapest$834Average$1,408FlexibilityNo cancel feeOn-time78%
Air CanadaCheapest$951Average$1,314FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,157Average$1,560FlexibilityNo cancel feeOn-time69%

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