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 65 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 $1,323 (from Adelaide) have been found by momondo users. In 521 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 $1,374 from Brisbane, return. With 59 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 18h 10m on average. If you fly from Melbourne (another popular airport in Australia) to Denver Intl, then the average flight time is 18h 33m.

$610 Cheap Flights to Denver in 2025/26

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14:00 - 18:25SYD-DEN

22h 25m2 stops

07:51 - 12:35DEN-SYD

34h 44m2 stops

$1,137Multiple Airlines

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Tue, 18 Nov - Tue, 25 Nov

11:20 - 16:45SYD-DEN

23h 25m2 stops

15:59 - 09:35DEN-SYD

23h 36m2 stops

$1,248Air Canada

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Tue, 2 Dec - Tue, 9 Dec

17:45 - 09:02SYD-DEN

33h 17m2 stops

07:51 - 07:25DEN-SYD

29h 34m1 stop

$1,251Multiple Airlines

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Tue, 18 Nov - Tue, 25 Nov

11:20 - 17:39SYD-DEN

24h 19m1 stop

18:10 - 09:00DEN-SYD

20h 50m1 stop

$1,379Qantas Airways

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Wed, 3 Dec - Wed, 17 Dec

13:05 - 15:45SYD-DEN

19h 40m1 stop

13:08 - 07:05DEN-SYD

25h 57m1 stop

$1,451Qantas Airways

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Sat, 28 Mar - Sun, 12 Apr

13:00 - 16:26MEL-DEN

21h 26m2 stops

17:55 - 10:00DEN-MEL

22h 05m1 stop

$1,482United Airlines

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Wed, 19 Nov - Mon, 1 Dec

12:10 - 12:09SYD-DEN

17h 59m1 stop

21:04 - 06:20DEN-SYD

39h 16m1 stop

$1,496United Airlines

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Fri, 21 Nov - Sat, 6 Dec

07:35 - 12:10BNE-DEN

21h 35m2 stops

05:45 - 07:30DEN-BNE

32h 45m1 stop

$2,579Virgin Australia

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Mon, 15 Dec - Mon, 22 Dec

08:10 - 16:32BNE-DEN

25h 22m3 stops

07:50 - 07:00DEN-BNE

30h 10m2 stops

$2,662Air New Zealand

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Tue, 13 Jan - Tue, 20 Jan

11:10 - 16:22BNE-DEN

22h 12m2 stops

13:43 - 07:00DEN-BNE

24h 17m2 stops

$3,239Air New Zealand

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Mon, 15 Dec - Mon, 22 Dec

Fly from

Route

Depart

Return

Price

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 18/11

14:00-18:25

2 stops22h 25m

Denver Intl

Tue 25/11

07:51-12:35

2 stops34h 44m

$1,137

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 2/12

11:20-16:45

2 stops23h 25m

Denver Intl

Tue 9/12

15:59-09:35

2 stops23h 36m

$1,248

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 18/11

17:45-09:02

2 stops33h 17m

Denver Intl

Tue 25/11

07:51-07:25

1 stop29h 34m

$1,251

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Wed 3/12

11:20-17:39

1 stop24h 19m

Denver Intl

Wed 17/12

18:10-09:00

1 stop20h 50m

$1,379

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sat 28/3

13:05-15:45

1 stop19h 40m

Denver Intl

Sun 12/4

13:08-07:05

1 stop25h 57m

$1,451

MelbourneDenver

MEL - DEN

MELDEN

Melbourne

Wed 19/11

13:00-16:26

2 stops21h 26m

Denver Intl

Mon 1/12

17:55-10:00

1 stop22h 05m

$1,482

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Fri 21/11

12:10-12:09

1 stop17h 59m

Denver Intl

Sat 6/12

21:04-06:20

1 stop39h 16m

$1,496

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Mon 15/12

07:35-12:10

2 stops21h 35m

Denver Intl

Mon 22/12

05:45-07:30

1 stop32h 45m

$2,579

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Tue 13/1

08:10-16:32

3 stops25h 22m

Denver Intl

Tue 20/1

07:50-07:00

2 stops30h 10m

$2,662

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Mon 15/12

11:10-16:22

2 stops22h 12m

Denver Intl

Mon 22/12

13:43-07:00

2 stops24h 17m

$3,239

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 $1,131. 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 $1,177.

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 $1,821. 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 $2,424.

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 $1,719. 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 $2,044.

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 $1,629 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 $1,437 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 $1,131 in February
MOST EXPENSIVE MONTH TO FLY TO DENVER FROM SYDNEY	December	42% more expensive	It costs about $2,323 for flights to Denver from Sydney in December
MOST POPULAR MONTH TO FLY TO DENVER FROM SYDNEY	December	555% more users visited	More momondo users searched in flights to Denver from Sydney in December than any other month

Cheap Denver flight deals and tips

Summary info about Denver flight prices, duration and airlines

Best One-Way Price	$610
Best Round-Trip Price	$1,137
Fastest flight time	21h 22m
Popular in	December

The best one-way flight price to Denver from Australia in the last 72 hours is $610 (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 $1,137 (Sydney Kingsford Smith to Denver Intl).

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The fastest flight to Denver from Australia takes 21h 22m (Brisbane to Denver Intl).

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December has the highest demand for flights to Denver, with a 6% 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 $1,629. In the past 72 hours, momondo users found flights from Australia to Denver for as low as $716.

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.