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$406+ 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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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 octubre 28, 2025.

This Priceline deal was found by Cheapflights users on 10/26. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/2611:44 amDEN - BNE
2 stops28h 01mAir Canada
mié. 12/310:45 amBNE - DEN
1 stop18h 52mAir Canada
Deal found 10/26$765
This Air Canada deal was found by Cheapflights users on 10/27. 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.
mar. 11/2511:44 amDEN - BNE
2 stops28h 01mAir Canada
jue. 12/2510:45 amBNE - DEN
2 stops24h 23mAir Canada
Deal found 10/27$768
This Air Canada deal was found by Cheapflights users on 10/26. 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.
lun. 11/247:05 pmDEN - BNE
2 stops25h 20mMultiple Airlines
lun. 12/110:45 amBNE - DEN
1 stop18h 52mMultiple Airlines
Deal found 10/26$782
This Air Canada deal was found by Cheapflights users on 10/27. 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.
lun. 11/103:53 pmDEN - BNE
1 stop23h 52mAir Canada
mar. 11/256:35 amBNE - DEN
2 stops22h 48mAir Canada
Deal found 10/27$788
This Air Canada deal was found by Cheapflights users on 10/27. 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.
lun. 11/101:25 pmDEN - BNE
2 stops26h 20mMultiple Airlines
mar. 11/256:05 amBNE - DEN
2 stops23h 18mMultiple Airlines
Deal found 10/27$793
This Air Canada deal was found by Cheapflights users on 10/26. 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.
mié. 12/248:45 amDEN - BNE
1 stop31h 00mAir Canada
jue. 1/1510:45 amBNE - DEN
1 stop22h 45mAir Canada
Deal found 10/26$825
This Air Canada deal was found by Cheapflights users on 10/26. 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.
jue. 12/2511:20 amDEN - BNE
2 stops28h 25mAir Canada
jue. 1/1510:45 amBNE - DEN
2 stops23h 00mAir Canada
Deal found 10/26$828
This Air Canada deal was found by Cheapflights users on 10/26. 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.
mar. 12/239:11 pmDEN - BNE
2 stops42h 34mAir Canada
jue. 1/1510:45 amBNE - DEN
2 stops39h 10mAir Canada
Deal found 10/26$829
This American Airlines deal was found by Cheapflights users on 10/26. 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.
sáb. 11/18:11 amDEN - BNE
1 stop29h 19mAmerican Airlines
sáb. 11/89:40 amBNE - DEN
1 stop21h 15mAmerican Airlines
Deal found 10/26$844
This Air Canada deal was found by Cheapflights users on 10/26. 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.
dom. 11/27:05 pmDEN - BNE
1 stop20h 40mAir Canada
mié. 11/196:35 amBNE - DEN
2 stops26h 51mAir Canada
Deal found 10/26$845
This United Airlines deal was found by Cheapflights users on 10/27. 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.
dom. 11/27:05 pmDEN - BNE
1 stop19h 25mUnited Airlines
mié. 11/1911:40 amBNE - DEN
1 stop27h 40mUnited Airlines
Deal found 10/27$847
This Cheapflightsfares deal was found by Cheapflights users on 10/26. 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.
mié. 11/512:55 pmDEN - MEL
2 stops27h 40mQantas Airways
lun. 11/1012:30 pmMEL - DEN
2 stops24h 13mQantas Airways
Deal found 10/26$1,050

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 octubre 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$763
(Air Canada)

One-way from

$406
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$1,310
Provider with most accurate pricing for Denver Intl-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Sydney Kingsford Smith flights.
Search Deals
From Denver Intl to Australia
Search Deals
One-way flight from Denver Intl to Australia
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($269 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 octubre 28, 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

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

lun. 11/24

7:05 pm-8:45 am

1 stop20h 40m

Brisbane

lun. 12/1

10:45 am-12:37 pm

1 stop18h 52m

$765

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

mar. 11/25

11:44 am-8:45 am

2 stops28h 01m

Brisbane

jue. 12/25

10:45 am-6:08 pm

2 stops24h 23m

$768

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

mié. 11/26

11:44 am-8:45 am

2 stops28h 01m

Brisbane

mié. 12/3

10:45 am-6:25 pm

2 stops24h 40m

$827

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

dom. 11/2

7:05 pm-8:45 am

1 stop20h 40m

Brisbane

mié. 11/19

6:35 am-4:26 pm

2 stops26h 51m

$845

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

lun. 11/17

8:45 am-8:45 am

1 stop31h 00m

Brisbane

lun. 11/24

12:05 pm-4:26 pm

2 stops45h 21m

$845

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

dom. 11/2

3:59 pm-7:30 am

1 stop22h 31m

Brisbane

mié. 11/19

11:40 am-6:24 pm

1 stop23h 44m

$847

DenverMelbourne

DEN - AVV

DENAVV

Denver Intl

lun. 4/20

8:19 pm-4:05 pm

2 stops27h 46m

Melbourne Avalon

mié. 5/13

10:35 am-12:28 pm

2 stops41h 53m

$999

DenverCairns

DEN - CNS

DENCNS

Denver Intl

mar. 12/2

12:55 pm-11:05 pm

2 stops41h 10m

Cairns

jue. 12/11

5:35 pm-5:39 pm

2 stops65h 04m

$1,070

DenverSydney

DEN - SYD

DENSYD

Denver Intl

mié. 3/4

1:45 pm-6:20 am

2 stops22h 35m

Sydney Kingsford Smith

mié. 3/11

12:10 pm-4:12 pm

2 stops21h 02m

$1,110

DenverCairns

DEN - CNS

DENCNS

Denver Intl

vie. 1/16

7:23 pm-9:00 pm

2 stops56h 37m

Cairns

sáb. 1/24

11:45 am-12:18 pm

2 stops41h 33m

$1,115

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

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 $421). Flying from Denver to Australia in October is currently the most expensive (average of $825). 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 octubre 28, 2025.

One of the essential ways to save on airfare from Denver to Australia is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 24% on airfare.

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

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

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

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 octubre 28, 2025.
Get a feel of what it's like to fly with Air New Zealand, Qantas Airways, and United Airlines from Denver to Australia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very good
519 reviews

Overall

8.0

Food

7.4

Entertainment

7.5

Comfort

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Air New Zealand
8.0
Very good
519 reviews
Air New Zealand
8.0
Very good
519 reviews

Overall

8.0

Food

7.4

Entertainment

7.5

Comfort

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Qantas Airways
7.5
Good
924 reviews
Air New Zealand
8.0
Very good
519 reviews

Overall

8.0

Food

7.4

Entertainment

7.5

Comfort

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
United Airlines
7.4
Good
8,996 reviews
Air New Zealand
8.0
Very good
519 reviews

Overall

8.0

Food

7.4

Entertainment

7.5

Comfort

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
American Airlines
7.2
Good
11,034 reviews
Air New Zealand
8.0
Very good
519 reviews

Overall

8.0

Food

7.4

Entertainment

7.5

Comfort

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Air Canada
7.1
Good
10,371 reviews
Air New Zealand
8.0
Very good
519 reviews

Overall

8.0

Food

7.4

Entertainment

7.5

Comfort

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

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.

  • How long is the flight from Denver to Australia?

    Air Canada, Qantas Airways, and United Airlines can get you from Denver to Australia in just under 20h 40m. Your travel time can differ by up to 20h 30m. Airlines will cover a distance of 8012 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $412. Users have also found prices from $417 and $428 on American Airlines and United 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 $421). Flying from Denver to Australia in October is currently the most expensive (average of $825). 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

Browse thousands of different options on Cheapflights for your next trip

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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 octubre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$645Average$1,278FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$693Average$992FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$745Average$856FlexibilityNo cancel feeOn-time75%
DeltaCheapest$786Average$1,394FlexibilityNo cancel feeOn-timeN/A
Air New ZealandCheapest$834Average$1,303FlexibilityNo cancel feeOn-time78%
Air CanadaCheapest$1,009Average$1,313FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$1,159Average$1,283FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$1,261Average$1,535FlexibilityNo cancel feeOn-time69%

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