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Cheap flights from Colorado to Sydney from $495

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 10/22. 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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0 bags

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Find the cheapest flights from Colorado to Sydney

Cheap round-trip flights

Alaska Airlines Logo
6:20 pm - 7:45 pmDEN-SYD
32h 25m2 stops
Alaska Airlines Logo
9:40 pm - 12:27 pmSYD-DEN
31h 47m2 stops
$1,025Alaska Airlines
Find Deal
Tue, Oct 21 - Fri, Oct 31
Alaska Airlines Logo
7:50 pm - 7:45 pmDEN-SYD
29h 55m2 stops
Alaska Airlines Logo
9:40 pm - 11:39 amSYD-DEN
31h 59m2 stops
$1,034Alaska Airlines
Find Deal
Sat, Jan 17 - Tue, Feb 10
Alaska Airlines Logo
3:37 pm - 7:45 pmDEN-SYD
34h 08m2 stops
Alaska Airlines Logo
9:40 pm - 12:27 pmSYD-DEN
32h 47m2 stops
$1,044Alaska Airlines
Find Deal
Fri, Nov 7 - Fri, Nov 14
Multiple Airlines Logo
8:10 am - 3:40 pmDEN-SYD
38h 30m2 stops
Multiple Airlines Logo
5:45 pm - 10:18 amSYD-DEN
34h 33m1 stop
$1,063Multiple Airlines
Find Deal
Tue, Oct 21 - Sat, Nov 15
Multiple Airlines Logo
8:10 am - 3:40 pmDEN-SYD
38h 30m2 stops
Multiple Airlines Logo
5:45 pm - 10:18 amSYD-DEN
33h 33m1 stop
$1,072Multiple Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 28
Hawaiian Airlines Logo
3:02 pm - 7:45 pmDEN-SYD
35h 43m2 stops
Hawaiian Airlines Logo
9:40 pm - 2:41 pmSYD-DEN
34h 01m2 stops
$1,080Hawaiian Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 28
Hawaiian Airlines Logo
3:02 pm - 7:45 pmDEN-SYD
35h 43m2 stops
Hawaiian Airlines Logo
9:40 pm - 12:27 pmSYD-DEN
32h 47m2 stops
$1,099Hawaiian Airlines
Find Deal
Tue, Oct 14 - Sat, Nov 8
Air Canada Logo
7:05 pm - 9:35 amDEN-SYD
20h 30m1 stop
Air Canada Logo
11:20 am - 12:37 pmSYD-DEN
19h 17m1 stop
$1,177Air Canada
Find Deal
Sun, Feb 1 - Fri, Feb 13
Air Canada Logo
7:05 pm - 9:35 amDEN-SYD
20h 30m1 stop
Air Canada Logo
11:20 am - 12:37 pmSYD-DEN
19h 17m1 stop
$1,178Air Canada
Find Deal
Sun, Feb 1 - Fri, Feb 13
Fiji Airways Logo
5:01 pm - 12:30 pmDEN-SYD
25h 29m2 stops
Fiji Airways Logo
2:10 pm - 8:02 pmSYD-DEN
23h 52m2 stops
$1,181Fiji Airways
Find Deal
Sat, Feb 7 - Sat, Feb 21

Qantas Airways flights from Colorado to Sydney

Our best Qantas Airways deals on Colorado to Sydney flight tickets
Qantas Airways
Sep 27
DEN6:00 pmDenver Intl
21h 05m
1 stop
SYD7:05 amSydney Kingsford Smith
Sep 29
SYD5:45 pmSydney Kingsford Smith
21h 20m
1 stop
DEN11:05 pmDenver Intl
$1,950
Find similar
Qantas Airways
Sep 28
DEN6:00 amDenver Intl
33h 05m
1 stop
SYD7:05 amSydney Kingsford Smith
Sep 30
SYD9:10 amSydney Kingsford Smith
18h 13m
1 stop
DEN11:23 amDenver Intl
$1,962
Find similar
Qantas Airways
Nov 7
COS12:45 pmColorado Springs
24h 10m
1 stop
SYD6:55 amSydney Kingsford Smith
Nov 14
SYD2:05 pmSydney Kingsford Smith
22h 01m
1 stop
COS6:06 pmColorado Springs
$2,446
Find similar

Alaska Airlines flights from Colorado to Sydney

Our best Alaska Airlines deals on Colorado to Sydney flight tickets
Alaska Airlines
Oct 21
DEN6:20 pmDenver Intl
32h 25m
2 stops
SYD7:45 pmSydney Kingsford Smith
Oct 31
SYD9:40 pmSydney Kingsford Smith
31h 47m
2 stops
DEN12:27 pmDenver Intl
$1,025
Find similar
Alaska Airlines
Jan 17
DEN7:50 pmDenver Intl
29h 55m
2 stops
SYD7:45 pmSydney Kingsford Smith
Feb 10
SYD9:40 pmSydney Kingsford Smith
31h 59m
2 stops
DEN11:39 amDenver Intl
$1,034
Find similar
Alaska Airlines
Nov 7
DEN3:37 pmDenver Intl
34h 08m
2 stops
SYD7:45 pmSydney Kingsford Smith
Nov 14
SYD9:40 pmSydney Kingsford Smith
32h 47m
2 stops
DEN12:27 pmDenver Intl
$1,044
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated September 25, 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 10/21

6:20 pm-7:45 pm

2 stops32h 25m

Sydney Kingsford Smith

Fri 10/31

9:40 pm-12:27 pm

2 stops31h 47m

$1,025

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 1/17

7:50 pm-7:45 pm

2 stops29h 55m

Sydney Kingsford Smith

Tue 2/10

9:40 pm-11:39 am

2 stops31h 59m

$1,034

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 11/7

3:37 pm-7:45 pm

2 stops34h 08m

Sydney Kingsford Smith

Fri 11/14

9:40 pm-12:27 pm

2 stops32h 47m

$1,044

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 10/21

8:10 am-3:40 pm

2 stops38h 30m

Sydney Kingsford Smith

Sat 11/15

5:45 pm-10:18 am

1 stop34h 33m

$1,063

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 10/21

8:10 am-3:40 pm

2 stops38h 30m

Sydney Kingsford Smith

Tue 10/28

5:45 pm-10:18 am

1 stop33h 33m

$1,072

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 10/14

3:02 pm-7:45 pm

2 stops35h 43m

Sydney Kingsford Smith

Tue 10/28

9:40 pm-2:41 pm

2 stops34h 01m

$1,080

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 10/14

3:02 pm-7:45 pm

2 stops35h 43m

Sydney Kingsford Smith

Sat 11/8

9:40 pm-12:27 pm

2 stops32h 47m

$1,099

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 2/1

7:05 pm-9:35 am

1 stop20h 30m

Sydney Kingsford Smith

Fri 2/13

11:20 am-12:37 pm

1 stop19h 17m

$1,177

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 2/1

7:05 pm-9:35 am

1 stop20h 30m

Sydney Kingsford Smith

Fri 2/13

11:20 am-12:37 pm

1 stop19h 17m

$1,178

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 2/7

5:01 pm-12:30 pm

2 stops25h 29m

Sydney Kingsford Smith

Sat 2/21

2:10 pm-8:02 pm

2 stops23h 52m

$1,181

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

In general, April is the cheapest month to fly from Colorado to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $871. If you are unable to visit Sydney during the month of April, then departing from Colorado during the month May is also very affordable. Most momondo users find prices during this month for around $874.

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

The cheapest day to depart from Colorado to Sydney is on a Tuesday when prices can be found for as low as $1,197. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,362.

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 noon. momondo users have found flights departing from Colorado to Sydney at noon for as low as $933. 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 Sydney are more costly in the evening, with an average ticket price of $1,292. 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 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 $1,072 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Colorado for as low as $924 on momondo.

Can stopping save me money on Colorado to Sydney flights?

You could potentially save up to 33% on your flight if you consider stops on a Colorado to Sydney flight.

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 are refreshed on a daily basis.

  • 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 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 layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Sydney Kingsford Smith Airport.

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

    The required travel and health documents for your Sydney Kingsford Smith Airport 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 license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable 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
Alaska AirlinesPriceFrom $745Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
DeltaPriceFrom $786Free CancellationRating
7.9
7,973 reviews
Search Delta flights
Qantas AirwaysPriceFrom $806Free CancellationRating
7.5
908 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $832Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air New ZealandPriceFrom $834Free CancellationRating
7.9
506 reviews
Search Air New Zealand flights
Air CanadaPriceFrom $1,009Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,261Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights

Traveling to a place near Sydney?

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

Why use momondo?

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

Finding the right flight to Sydney from Colorado is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Sydney quick and easy, saving you time and money.

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

Yes. All flights to Sydney from Colorado on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Colorado and Sydney by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Sydney from Colorado are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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