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 San Francisco. Air New Zealand ticket prices will depend on when and where you need to fly from - deals as low as $1,322 (from Adelaide) have been found by momondo users. In 527 reviews, momondo users have rated Air New Zealand at an average score of 8.0/10.

Qantas Airways Flights to Denver

Qantas Airways (7.6/10, 938 reviews) is also a popular choice for flights to Denver, with deals from as low as $982 from Adelaide, return. With 17 Qantas Airways 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 20h 41m on average. If you fly from Melbourne (another popular airport in Australia) to Denver Intl, then the average flight time is 22h 58m.

$826 Cheap Flights to Denver in 2025/26

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11:50 - 18:30SYD-DEN

22h 40m2 stops

17:30 - 08:45DEN-SYD

23h 15m2 stops

$1,715Air New Zealand

Find Deal

Fri, 1 May - Sat, 16 May

07:00 - 12:38SYD-DEN

21h 38m2 stops

11:21 - 07:20DEN-SYD

27h 59m2 stops

$1,761Air Canada

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Wed, 8 Apr - Thu, 23 Apr

19:40 - 15:09BNE-DEN

36h 29m2 stops

12:55 - 05:30DEN-BNE

24h 35m1 stop

$1,784American Airlines

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Fri, 6 Mar - Tue, 10 Mar

19:40 - 15:09BNE-DEN

36h 29m2 stops

12:55 - 05:30DEN-BNE

24h 35m1 stop

$1,785American Airlines

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Fri, 6 Mar - Tue, 10 Mar

10:45 - 16:53BNE-DEN

23h 08m2 stops

11:49 - 08:45DEN-BNE

27h 56m1 stop

$1,809Air Canada

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Thu, 19 Feb - Thu, 5 Mar

13:55 - 00:30SYD-DEN

27h 35m2 stops

16:10 - 08:45DEN-SYD

23h 35m2 stops

$1,875Air New Zealand

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Sat, 21 Mar - Wed, 1 Apr

11:40 - 08:24BNE-DEN

37h 44m2 stops

19:41 - 07:30DEN-BNE

18h 49m1 stop

$1,967United Airlines

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Wed, 17 Dec - Wed, 28 Jan

11:40 - 12:26BNE-DEN

41h 46m2 stops

19:41 - 07:30DEN-BNE

18h 49m1 stop

$1,968United Airlines

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Wed, 14 Jan - Thu, 29 Jan

23:55 - 12:19PER-DEN

27h 24m2 stops

19:41 - 14:45DEN-PER

28h 04m2 stops

$2,664Virgin Australia

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Sun, 11 Jan - Tue, 3 Feb

06:25 - 00:43HBA-DEN

34h 18m2 stops

19:45 - 19:40DEN-HBA

31h 55m2 stops

$2,865Virgin Australia

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Thu, 7 May - Mon, 11 May

Fly from

Route

Depart

Return

Price

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Fri 1/5

11:50-18:30

2 stops22h 40m

Denver Intl

Sat 16/5

17:30-08:45

2 stops23h 15m

$1,715

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Wed 8/4

07:00-12:38

2 stops21h 38m

Denver Intl

Thu 23/4

11:21-07:20

2 stops27h 59m

$1,761

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Fri 6/3

19:40-15:09

2 stops36h 29m

Denver Intl

Tue 10/3

12:55-05:30

1 stop24h 35m

$1,784

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Fri 6/3

19:40-15:09

2 stops36h 29m

Denver Intl

Tue 10/3

12:55-05:30

1 stop24h 35m

$1,785

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Thu 19/2

10:45-16:53

2 stops23h 08m

Denver Intl

Thu 5/3

11:49-08:45

1 stop27h 56m

$1,809

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sat 21/3

13:55-00:30

2 stops27h 35m

Denver Intl

Wed 1/4

16:10-08:45

2 stops23h 35m

$1,875

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Wed 17/12

11:40-08:24

2 stops37h 44m

Denver Intl

Wed 28/1

19:41-07:30

1 stop18h 49m

$1,967

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Wed 14/1

11:40-12:26

2 stops41h 46m

Denver Intl

Thu 29/1

19:41-07:30

1 stop18h 49m

$1,968

PerthDenver

PER - DEN

PERDEN

Perth

Sun 11/1

23:55-12:19

2 stops27h 24m

Denver Intl

Tue 3/2

19:41-14:45

2 stops28h 04m

$2,664

HobartDenver

HBA - DEN

HBADEN

Hobart

Thu 7/5

06:25-00:43

2 stops34h 18m

Denver Intl

Mon 11/5

19:45-19:40

2 stops31h 55m

$2,865

Flights are sorted by cheapest return flights first.

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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 $1,127. 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 $1,176.

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 $1,818. 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 $2,421.

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 $1,717. 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 $2,041.

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 $1,617 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 $1,359 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 $1,127 in February
MOST EXPENSIVE MONTH TO FLY TO DENVER FROM SYDNEY	December	43% more expensive	It costs about $2,320 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	$826
Best Round-Trip Price	$1,715
Fastest flight time	32h 56m
Popular in	December

The best one-way flight price to Denver from Australia in the last 72 hours is $826 (Perth to Denver Intl).

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The best round-trip flight price to Denver from Australia in the last 72 hours is $1,715 (Sydney Kingsford Smith to Denver Intl).

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The fastest flight to Denver from Australia takes 32h 56m (Perth 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 $1,617. In the past 72 hours, momondo users found flights from Australia to Denver for as low as $715.

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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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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