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Cheap flights from Colorado to Sydney from $809

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Sydney departing on 18/2. 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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Find the cheapest flights from Colorado to Sydney

Cheap return flights

Alaska Airlines Logo
20:02 - 19:45DEN-SYD
29h 43m2 stops
Alaska Airlines Logo
21:40 - 12:27SYD-DEN
32h 47m2 stops
$1,552Alaska Airlines
Find Deal
Tue, 4 Nov - Tue, 11 Nov
Alaska Airlines Logo
18:20 - 19:45DEN-SYD
32h 25m2 stops
Alaska Airlines Logo
21:40 - 12:27SYD-DEN
31h 47m2 stops
$1,567Alaska Airlines
Find Deal
Tue, 21 Oct - Fri, 31 Oct
Multiple Airlines Logo
08:10 - 15:40DEN-SYD
38h 30m2 stops
Multiple Airlines Logo
17:45 - 10:18SYD-DEN
34h 33m1 stop
$1,625Multiple Airlines
Find Deal
Tue, 21 Oct - Sat, 15 Nov
Multiple Airlines Logo
08:10 - 15:40DEN-SYD
38h 30m2 stops
Multiple Airlines Logo
17:45 - 10:18SYD-DEN
33h 33m1 stop
$1,639Multiple Airlines
Find Deal
Tue, 21 Oct - Tue, 28 Oct
Hawaiian Airlines Logo
15:02 - 19:45DEN-SYD
35h 43m2 stops
Hawaiian Airlines Logo
21:40 - 14:41SYD-DEN
34h 01m2 stops
$1,651Hawaiian Airlines
Find Deal
Tue, 14 Oct - Tue, 28 Oct
Hawaiian Airlines Logo
15:02 - 19:45DEN-SYD
35h 43m2 stops
Hawaiian Airlines Logo
21:40 - 12:27SYD-DEN
32h 47m2 stops
$1,680Hawaiian Airlines
Find Deal
Tue, 14 Oct - Sat, 8 Nov
Air Canada Logo
19:05 - 09:35DEN-SYD
20h 30m1 stop
Air Canada Logo
11:20 - 18:03SYD-DEN
24h 43m2 stops
$1,718Air Canada
Find Deal
Sun, 9 Nov - Tue, 25 Nov
Air Canada Logo
08:45 - 09:35DEN-SYD
30h 50m1 stop
Air Canada Logo
11:20 - 17:59SYD-DEN
24h 39m1 stop
$1,757Air Canada
Find Deal
Tue, 24 Feb - Sat, 28 Feb
Air New Zealand Logo
11:15 - 08:45DEN-SYD
27h 30m2 stops
Air New Zealand Logo
11:45 - 19:46SYD-DEN
26h 01m2 stops
$1,813Air New Zealand
Find Deal
Wed, 12 Nov - Wed, 26 Nov
Air New Zealand Logo
07:30 - 10:30COS-SYD
33h 00m2 stops
Air New Zealand Logo
11:45 - 11:27SYD-COS
41h 42m2 stops
$1,815Air New Zealand
Find Deal
Mon, 10 Nov - Mon, 17 Nov

Alaska Airlines flights from Colorado to Sydney

Our best Alaska Airlines deals on Colorado to Sydney flight tickets
Alaska Airlines
4 Nov
DEN20:02Denver Intl
29h 43m
2 stops
SYD19:45Sydney Kingsford Smith
11 Nov
SYD21:40Sydney Kingsford Smith
32h 47m
2 stops
DEN12:27Denver Intl
$1,552
Find similar
Alaska Airlines
21 Oct
DEN18:20Denver Intl
32h 25m
2 stops
SYD19:45Sydney Kingsford Smith
28 Oct
SYD21:40Sydney Kingsford Smith
31h 47m
2 stops
DEN12:27Denver Intl
$1,567
Find similar
Alaska Airlines
17 Jan
DEN19:50Denver Intl
29h 55m
2 stops
SYD19:45Sydney Kingsford Smith
10 Feb
SYD21:40Sydney Kingsford Smith
31h 59m
2 stops
DEN11:39Denver Intl
$1,581
Find similar

Air Canada flights from Colorado to Sydney

Our best Air Canada deals on Colorado to Sydney flight tickets
Air Canada
9 Nov
DEN19:05Denver Intl
20h 30m
1 stop
SYD09:35Sydney Kingsford Smith
25 Nov
SYD11:20Sydney Kingsford Smith
24h 43m
2 stops
DEN18:03Denver Intl
$1,718
Find similar
Air Canada
24 Feb
DEN08:45Denver Intl
30h 50m
1 stop
SYD09:35Sydney Kingsford Smith
28 Feb
SYD11:20Sydney Kingsford Smith
24h 39m
1 stop
DEN17:59Denver Intl
$1,757
Find similar
Air Canada
24 Feb
DEN09:58Denver Intl
29h 37m
2 stops
SYD09:35Sydney Kingsford Smith
28 Feb
SYD11:20Sydney Kingsford Smith
24h 39m
1 stop
DEN17:59Denver Intl
$1,766
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Colorado to Sydney 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 27 September 2025.
Use the filters below to find and compare flights from Colorado to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 4/11

20:02-19:45

2 stops29h 43m

Sydney Kingsford Smith

Tue 11/11

21:40-12:27

2 stops32h 47m

$1,552

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 21/10

18:20-19:45

2 stops32h 25m

Sydney Kingsford Smith

Fri 31/10

21:40-12:27

2 stops31h 47m

$1,567

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 21/10

08:10-15:40

2 stops38h 30m

Sydney Kingsford Smith

Sat 15/11

17:45-10:18

1 stop34h 33m

$1,625

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 21/10

08:10-15:40

2 stops38h 30m

Sydney Kingsford Smith

Tue 28/10

17:45-10:18

1 stop33h 33m

$1,639

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 14/10

15:02-19:45

2 stops35h 43m

Sydney Kingsford Smith

Tue 28/10

21:40-14:41

2 stops34h 01m

$1,651

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 14/10

15:02-19:45

2 stops35h 43m

Sydney Kingsford Smith

Sat 8/11

21:40-12:27

2 stops32h 47m

$1,680

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 9/11

19:05-09:35

1 stop20h 30m

Sydney Kingsford Smith

Tue 25/11

11:20-18:03

2 stops24h 43m

$1,718

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 24/2

08:45-09:35

1 stop30h 50m

Sydney Kingsford Smith

Sat 28/2

11:20-17:59

1 stop24h 39m

$1,757

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 12/11

11:15-08:45

2 stops27h 30m

Sydney Kingsford Smith

Wed 26/11

11:45-19:46

2 stops26h 01m

$1,813

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Mon 10/11

07:30-10:30

2 stops33h 00m

Sydney Kingsford Smith

Mon 17/11

11:45-11:27

2 stops41h 42m

$1,815

Flights are sorted by cheapest return flights first.

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

How to get the cheapest flight ticket from Colorado to Sydney

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 Sydney?

The month of April is, on average, the cheapest month to fly to Sydney from Colorado, with most prices found around $1,332. If you aren’t able to travel to Sydney during the month of April, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $1,338.

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

Our data shows that Wednesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $1,740. The most expensive day to fly to Sydney is Tuesday, with ticket prices averaging around $2,364.

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

According to our data, the cheapest time of day to fly to Sydney is at midday. momondo users have found flights departing from Colorado to Sydney at midday for as low as $1,433. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $2,136 on average. Flights to Sydney from Colorado in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to Sydney from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,647 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Colorado for as low as $1,414 on momondo.

Cheap Colorado to Sydney flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Sydney

Direct flights

None
There are no direct flights from Colorado to Sydney. There are no popular flight routes from Colorado to Sydney.
Search flight deals

  • When did momondo last update prices for flights from Colorado to Sydney Kingsford Smith Airport?

    Prices for flights from Colorado to Sydney Kingsford Smith Airport were last updated today.

  • How many operators does momondo search for flights from Colorado to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Colorado to Sydney Kingsford Smith Airport?

    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 Colorado to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The necessary travel and health documents for your Sydney Kingsford Smith 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.

Best airlines flying from Colorado to Sydney

Compare and see reviews for airlines that fly from Colorado to Sydney with momondo
Airline
Rating
Free cancellation
Price
American AirlinesPriceFrom $305Free cancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $473Free cancellationRating
7.4
8,926 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $1,257Free cancellationRating
7.5
908 reviews
Search Qantas Airways flights

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Terrigal
Penrith
Katoomba
Lithgow
Leura
Manly
Bondi Beach
Coogee
Randwick
Cronulla
Charlestown
Newport
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Sydney?

It is quick and easy to find Colorado to Sydney 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 Sydney that suits you.

Can I find flights from Colorado to Sydney with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Sydney from Colorado with this policy.

How can momondo help me find flights from Colorado to Sydney?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Colorado.

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

Yes. momondo can track prices for Colorado to Sydney flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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