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Cheap flights from Denver to Australia from $672

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Australia departing on 15/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Logo
16:00 - 11:45DEN-SYD
27h 45m2 stops
Logo
13:15 - 00:36SYD-DEN
27h 21m2 stops
$1,526
Find Deal
Sat, 27 Sep - Fri, 3 Oct
Logo
18:39 - 12:45DEN-SYD
25h 06m2 stops
Logo
14:15 - 00:57SYD-DEN
27h 42m2 stops
$1,547
Find Deal
Sat, 4 Oct - Fri, 31 Oct
Alaska Airlines Logo
06:14 - 19:45DEN-SYD
43h 31m2 stops
Alaska Airlines Logo
21:40 - 14:46SYD-DEN
35h 06m2 stops
$1,568Alaska Airlines
Find Deal
Thu, 27 Nov - Thu, 4 Dec
Alaska Airlines Logo
19:50 - 19:45DEN-SYD
29h 55m2 stops
Alaska Airlines Logo
21:40 - 11:39SYD-DEN
31h 59m2 stops
$1,596Alaska Airlines
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Thu, 19 Feb - Fri, 27 Feb
Qantas Airways Logo
18:14 - 09:30DEN-MEL
21h 16m1 stop
Qantas Airways Logo
12:00 - 18:43MEL-DEN
24h 43m1 stop
$1,992Qantas Airways
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Sat, 15 Nov - Sun, 23 Nov
American Airlines Logo
13:00 - 09:30DEN-MEL
26h 30m1 stop
American Airlines Logo
12:00 - 19:15MEL-DEN
25h 15m1 stop
$2,002American Airlines
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Wed, 28 Jan - Tue, 10 Feb
Qantas Airways Logo
16:45 - 05:00DEN-BNE
19h 15m1 stop
Qantas Airways Logo
11:30 - 16:30BNE-DEN
22h 00m1 stop
$2,007Qantas Airways
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Tue, 25 Nov - Thu, 25 Dec
American Airlines Logo
14:46 - 09:30DEN-MEL
24h 44m2 stops
American Airlines Logo
12:00 - 19:15MEL-DEN
25h 15m1 stop
$2,008American Airlines
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Wed, 28 Jan - Tue, 10 Feb
United Airlines Logo
11:35 - 09:30DEN-ADL
28h 25m1 stop
United Airlines Logo
14:55 - 18:25ADL-DEN
21h 00m1 stop
$2,011United Airlines
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Mon, 16 Feb - Wed, 25 Feb
United Airlines Logo
13:45 - 09:30DEN-ADL
26h 15m2 stops
United Airlines Logo
14:55 - 20:04ADL-DEN
22h 39m1 stop
$2,019United Airlines
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Mon, 16 Feb - Wed, 25 Feb

Alaska Airlines flights from Denver to Australia

Our best Alaska Airlines deals on Denver to Australia flight tickets
Alaska Airlines
27 Nov
DEN06:14Denver Intl
43h 31m
2 stops
SYD19:45Sydney Kingsford Smith
4 Dec
SYD21:40Sydney Kingsford Smith
35h 06m
2 stops
DEN14:46Denver Intl
$1,568
Find similar
Alaska Airlines
19 Feb
DEN19:50Denver Intl
29h 55m
2 stops
SYD19:45Sydney Kingsford Smith
27 Feb
SYD21:40Sydney Kingsford Smith
31h 59m
2 stops
DEN11:39Denver Intl
$1,596
Find similar
Alaska Airlines
18 Feb
DEN19:50Denver Intl
29h 55m
2 stops
SYD19:45Sydney Kingsford Smith
27 Feb
SYD21:40Sydney Kingsford Smith
36h 44m
2 stops
DEN16:24Denver Intl
$1,635
Find similar

Air Canada flights from Denver to Australia

Our best Air Canada deals on Denver to Australia flight tickets
Air Canada
1 Feb
DEN19:05Denver Intl
20h 30m
1 stop
SYD09:35Sydney Kingsford Smith
13 Feb
SYD11:20Sydney Kingsford Smith
24h 43m
2 stops
DEN18:03Denver Intl
$1,772
Find similar
Air Canada
21 Oct
DEN11:22Denver Intl
27h 58m
2 stops
SYD08:20Sydney Kingsford Smith
31 Oct
SYD10:20Sydney Kingsford Smith
23h 25m
2 stops
DEN16:45Denver Intl
$1,774
Find similar
Air Canada
28 Feb
DEN19:05Denver Intl
25h 10m
2 stops
MEL14:15Melbourne
12 Mar
MEL07:10Melbourne
22h 27m
2 stops
DEN12:37Denver Intl
$1,780
Find similar

momondo Fare Finder

 
Customise 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, momondo users made 78,305 searches. Data last updated 14 September 2025.
Use the filters below to find and compare flights from Denver to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 27/9

16:00-11:45

2 stops27h 45m

Sydney Kingsford Smith

Fri 3/10

13:15-00:36

2 stops27h 21m

$1,526

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 4/10

18:39-12:45

2 stops25h 06m

Sydney Kingsford Smith

Fri 31/10

14:15-00:57

2 stops27h 42m

$1,547

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 27/11

06:14-19:45

2 stops43h 31m

Sydney Kingsford Smith

Thu 4/12

21:40-14:46

2 stops35h 06m

$1,568

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 19/2

19:50-19:45

2 stops29h 55m

Sydney Kingsford Smith

Fri 27/2

21:40-11:39

2 stops31h 59m

$1,596

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Sat 15/11

18:14-09:30

1 stop21h 16m

Melbourne

Sun 23/11

12:00-18:43

1 stop24h 43m

$1,992

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Wed 28/1

13:00-09:30

1 stop26h 30m

Melbourne

Tue 10/2

12:00-19:15

1 stop25h 15m

$2,002

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Tue 25/11

16:45-05:00

1 stop19h 15m

Brisbane

Thu 25/12

11:30-16:30

1 stop22h 00m

$2,007

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Wed 28/1

14:46-09:30

2 stops24h 44m

Melbourne

Tue 10/2

12:00-19:15

1 stop25h 15m

$2,008

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Mon 16/2

11:35-09:30

1 stop28h 25m

Adelaide

Wed 25/2

14:55-18:25

1 stop21h 00m

$2,011

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Mon 16/2

13:45-09:30

2 stops26h 15m

Adelaide

Wed 25/2

14:55-20:04

1 stop22h 39m

$2,019

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Australia from

How to get the cheapest flight ticket from Denver to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Australia?

In general, April is the cheapest month to fly from Denver to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,309. If you don’t want to visit Australia in April, then you should wait until May to fly from Denver, when ticket prices are also cheap, with an average price of $1,314.

What is the cheapest day to depart on your flight to Australia?

On average, the least expensive day to fly to Australia from Denver is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,711. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Denver to Australia on a Tuesday will generally be more expensive and average around $2,324. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Australia?

According to our data, the cheapest time of day to fly to Australia is at midday. momondo users have found flights departing from Denver to Australia at midday for as low as $1,409. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Australia are more costly in the evening, with an average ticket price of $2,100. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Australia?

You are more likely to see cheaper flights to Australia from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,600 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Denver for as low as $1,389 on momondo.

Can stopping save me money on Denver to Australia flights?

You could potentially save up to 44% on your flight if you consider stops on a Denver to Australia flight.

Cheap Denver to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Australia

Direct flights

None
There are no direct flights from Denver to Australia. There are no popular flight routes from Denver to Australia.
Search flight deals

  • When did momondo last update prices for flights from Denver Intl Airport to Australia?

    Prices for flights from Denver Intl Airport to Australia are refreshed on a daily basis.

  • How many operators does momondo search for flights from Denver Intl Airport to Australia?

  • How old do you have to be to fly from Denver Intl Airport to Australia?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Australia.

  • What documentation or ID do you need to fly to Australia?

    The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Denver to Australia

Compare and see reviews for airlines that fly from Denver to Australia with momondo
Airline
Rating
Free cancellation
Price
American AirlinesPriceFrom $300Free cancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $465Free cancellationRating
7.4
8,931 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $1,236Free cancellationRating
7.5
905 reviews
Search Qantas Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Australia?

It is quick and easy to find Denver to Australia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Australia that suits you.

Can I find flights from Denver to Australia with flexible booking policies on momondo?

All flight searches from Denver to Australia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Denver to Australia?

momondo provides multiple filters to help you find the best flight to Australia from Denver. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Denver to Australia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Australia, momondo offers a useful price alert feature which will track prices for flights to Australia from Denver and alert you when they change.

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