Which airlines fly to Denver?

When flying to Denver from Australia, momondo travellers will most often fly with one of these popular airlines: Qantas Airways, Air Canada, United Airlines or Air New Zealand. Depending on what airport in Australia you fly from, you may be able to find flights with any of these popular airlines.

Air New Zealand Flights to Denver

Air New Zealand is a popular choice for users travelling to Denver. It operates 62 flights every week to Denver, most often flying from Houston George Bush Intcntl. Air New Zealand ticket prices will depend on when and where you need to fly from - deals as low as $1,333 (from Adelaide) have been found by momondo users. In 534 reviews, momondo users have rated Air New Zealand at an average score of 8.0/10.

Virgin Australia Flights to Denver

Virgin Australia (7.6/10, 424 reviews) is also a popular choice for flights to Denver, with deals from as low as $1,384 from Brisbane, return. With 56 Virgin Australia flights to Denver on average each week, prices can vary significantly by origin and availability.

How long does it take to fly to Denver?

The flight from Australia to Denver depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Sydney Kingsford Smith (a popular airport in Australia) to Denver Intl (the most popular airport in Denver), then the flight time is 19h 07m on average. If you fly from Melbourne (another popular airport in Australia) to Denver Intl, then the average flight time is 23h 25m.

$629 Cheap Flights to Denver in 2025/26

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14:00 - 23:31SYD-DEN

27h 31m2 stops

07:10 - 12:35DEN-SYD

35h 25m2 stops

$1,432Multiple Airlines

Find Deal

Fri, 30 Jan - Sat, 14 Feb

21:30 - 00:05SYD-DEN

44h 35m2 stops

21:44 - 07:25DEN-SYD

39h 41m1 stop

$1,728Multiple Airlines

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Thu, 15 Jan - Sat, 31 Jan

09:55 - 22:01SYD-DEN

28h 06m2 stops

15:45 - 08:45DEN-SYD

25h 00m2 stops

$1,785Air New Zealand

Find Deal

Thu, 30 Apr - Fri, 29 May

09:20 - 12:38SYD-DEN

19h 18m1 stop

08:45 - 07:20DEN-SYD

30h 35m1 stop

$1,805Air Canada

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Wed, 15 Apr - Thu, 30 Apr

09:20 - 12:38SYD-DEN

19h 18m1 stop

11:21 - 07:20DEN-SYD

27h 59m2 stops

$1,811Air Canada

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Tue, 14 Apr - Wed, 29 Apr

11:40 - 08:16BNE-DEN

37h 36m2 stops

15:54 - 07:30DEN-BNE

22h 36m1 stop

$2,003United Airlines

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Fri, 13 Feb - Tue, 17 Feb

23:50 - 20:28PER-DEN

34h 38m2 stops

17:50 - 16:00DEN-PER

32h 10m2 stops

$2,160Air New Zealand

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Sat, 9 May - Sat, 23 May

11:40 - 00:26BNE-DEN

29h 46m1 stop

19:41 - 07:30DEN-BNE

18h 49m1 stop

$2,884United Airlines

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Tue, 30 Dec - Fri, 16 Jan

06:00 - 19:49HBA-DEN

29h 49m2 stops

13:08 - 13:55DEN-HBA

32h 47m2 stops

$2,908Qantas Airways

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Fri, 1 May - Mon, 4 May

06:00 - 16:04HBA-DEN

26h 04m2 stops

13:08 - 13:55DEN-HBA

32h 47m2 stops

$2,912Qantas Airways

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Fri, 1 May - Mon, 4 May

Fly from

Route

Depart

Return

Price

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Fri 30/1

14:00-23:31

2 stops27h 31m

Denver Intl

Sat 14/2

07:10-12:35

2 stops35h 25m

$1,432

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Thu 15/1

21:30-00:05

2 stops44h 35m

Denver Intl

Sat 31/1

21:44-07:25

1 stop39h 41m

$1,728

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Thu 30/4

09:55-22:01

2 stops28h 06m

Denver Intl

Fri 29/5

15:45-08:45

2 stops25h 00m

$1,785

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Wed 15/4

09:20-12:38

1 stop19h 18m

Denver Intl

Thu 30/4

08:45-07:20

1 stop30h 35m

$1,805

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 14/4

09:20-12:38

1 stop19h 18m

Denver Intl

Wed 29/4

11:21-07:20

2 stops27h 59m

$1,811

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Fri 13/2

11:40-08:16

2 stops37h 36m

Denver Intl

Tue 17/2

15:54-07:30

1 stop22h 36m

$2,003

PerthDenver

PER - DEN

PERDEN

Perth

Sat 9/5

23:50-20:28

2 stops34h 38m

Denver Intl

Sat 23/5

17:50-16:00

2 stops32h 10m

$2,160

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Tue 30/12

11:40-00:26

1 stop29h 46m

Denver Intl

Fri 16/1

19:41-07:30

1 stop18h 49m

$2,884

HobartDenver

HBA - DEN

HBADEN

Hobart

Fri 1/5

06:00-19:49

2 stops29h 49m

Denver Intl

Mon 4/5

13:08-13:55

2 stops32h 47m

$2,908

HobartDenver

HBA - DEN

HBADEN

Hobart

Fri 1/5

06:00-16:04

2 stops26h 04m

Denver Intl

Mon 4/5

13:08-13:55

2 stops32h 47m

$2,912

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Denver flights insights and trends

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Prices

Other information

What is the cheapest month to fly to Denver?

In general, February is the cheapest month to fly from Australia to Denver. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,136. If you aren’t able to travel during the month of February, then book flights to Denver from Australia during March instead. Flights to Denver in March, while not as cheap as those in February, still average around $1,186.

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

According to our data, Monday is the cheapest day to fly to Denver from Australia. The lowest ticket price found for a Monday departure recently was $1,834. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Australia to Denver for around $2,442.

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

According to our data, the cheapest time of day to fly to Denver is at midday. momondo users have found flights departing from Australia to Denver at midday for as low as $1,731. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Denver is in the morning when prices are around $2,059.

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

You are more likely to see cheaper flights to Denver from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $1,632 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Australia for as low as $1,370 on momondo.

Cheapest flights to Denver Intl

Find the cheapest flights to Denver Intl from your nearest city or airport

Find flights from Sydney to Denver

CHEAPEST MONTH TO FLY TO DENVER FROM SYDNEY	February	31% cheaper	Flying from Sydney to Denver costs on average just $1,136 in February
MOST EXPENSIVE MONTH TO FLY TO DENVER FROM SYDNEY	December	43% more expensive	It costs about $2,339 for flights to Denver from Sydney in December
MOST POPULAR MONTH TO FLY TO DENVER FROM SYDNEY	January	1,125% more users visited	More momondo users searched in flights to Denver from Sydney in January than any other month

Cheap Denver flight deals and tips

Summary info about Denver flight prices, duration and airlines

Best One-Way Price	$629
Best Round-Trip Price	$1,432
Fastest flight time	22h 19m
Popular in	December

The best one-way flight price to Denver from Australia in the last 72 hours is $629 (Sydney Kingsford Smith to Denver Intl).

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The best round-trip flight price to Denver from Australia in the last 72 hours is $1,432 (Sydney Kingsford Smith to Denver Intl).

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The fastest flight to Denver from Australia takes 22h 19m (Melbourne to Denver Intl).

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December has the highest demand for flights to Denver, with a 8% price increase on average.

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Frequently asked questions about flying to Denver

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

The ideal time to book your flight to Denver is 46 days in advance, when prices tend to average $1,632. In the past 72 hours, momondo users found flights from Australia to Denver for as low as $721.

Is there an alternative airport near Denver?

Denver Rocky Mountain Metropolitan Airport, Denver Arapahoe Co Airport, Loveland Northern Colorado Airport, Colorado Springs Airport or Cheyenne Airport can be an alternative airport used for travel to Denver.

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

Prices for flights to Denver Intl Airport refresh daily.

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

The number of operators available for flights to Denver Intl Airport is 7 as of November 2025.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

momondo does allow users to show only those flights to Denver which offer a flexible booking policy as well as other useful filters and features.

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If you are not ready to book a flight to Denver now, use our insights above to find helpful tips or alternatively set up a price alert; this is where momondo will track prices on flights to Denver and let you know when they change.