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Cheap flights from Colorado to Sydney from $457

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 9/8. 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

Logo
3:53 pm - 9:35 amDEN-SYD
23h 42m1 stop
Logo
8:30 am - 12:23 pmSYD-DEN
21h 53m2 stops
$935
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Wed, Nov 19 - Mon, Nov 24
Air Canada Logo
7:05 pm - 6:05 pmDEN-SYD
29h 00m2 stops
Air Canada Logo
11:20 am - 6:04 pmSYD-DEN
24h 44m2 stops
$945Air Canada
Find Deal
Mon, Jan 12 - Mon, Jan 19
Logo
9:48 am - 12:30 pmDEN-SYD
32h 42m2 stops
Logo
2:30 pm - 7:21 pmSYD-DEN
22h 51m2 stops
$947
Find Deal
Mon, Nov 10 - Sat, Nov 15
Air Canada Logo
3:53 pm - 9:35 amDEN-SYD
23h 42m1 stop
Air Canada Logo
7:15 pm - 12:37 pmSYD-DEN
35h 22m2 stops
$967Air Canada
Find Deal
Tue, Nov 18 - Tue, Dec 9
Air New Zealand Logo
3:46 pm - 8:45 amDEN-SYD
23h 59m2 stops
Air New Zealand Logo
1:55 pm - 5:58 pmSYD-DEN
22h 03m2 stops
$1,117Air New Zealand
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Wed, Oct 22 - Wed, Nov 5
Air New Zealand Logo
8:31 pm - 8:45 amDEN-SYD
44h 14m2 stops
Air New Zealand Logo
11:50 am - 7:40 pmSYD-DEN
23h 50m2 stops
$1,124Air New Zealand
Find Deal
Sat, Sep 13 - Tue, Sep 23
Delta Logo
12:02 pm - 6:35 amASE-SYD
26h 33m1 stop
Delta Logo
9:25 am - 5:53 pmSYD-ASE
24h 28m1 stop
$1,375Delta
Find Deal
Tue, Sep 23 - Tue, Sep 30
United Airlines Logo
2:40 pm - 7:00 amASE-SYD
24h 20m2 stops
United Airlines Logo
9:30 am - 12:36 pmSYD-ASE
19h 06m1 stop
$1,457United Airlines
Find Deal
Tue, Sep 23 - Tue, Sep 30
United Airlines Logo
12:50 pm - 6:55 amCOS-SYD
26h 05m2 stops
United Airlines Logo
9:30 am - 2:36 pmSYD-COS
21h 06m2 stops
$1,515United Airlines
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Tue, Sep 23 - Tue, Sep 30
Delta Logo
12:00 pm - 8:30 amASE-SYD
26h 30m1 stop
Delta Logo
10:40 am - 6:44 pmSYD-ASE
26h 04m1 stop
$1,569Delta
Find Deal
Thu, Nov 13 - Mon, Nov 17

Air Canada flights from Colorado to Sydney

Our best Air Canada deals on Colorado to Sydney flight tickets
Air Canada
Jan 12
DEN7:05 pmDenver Intl
29h 00m
2 stops
SYD6:05 pmSydney Kingsford Smith
Jan 19
SYD11:20 amSydney Kingsford Smith
24h 44m
2 stops
DEN6:04 pmDenver Intl
$945
Find similar
Air Canada
Nov 18
DEN3:53 pmDenver Intl
23h 42m
1 stop
SYD9:35 amSydney Kingsford Smith
Dec 9
SYD7:15 pmSydney Kingsford Smith
35h 22m
2 stops
DEN12:37 pmDenver Intl
$967
Find similar
Air Canada
Nov 16
DEN7:05 pmDenver Intl
20h 30m
1 stop
SYD9:35 amSydney Kingsford Smith
Nov 30
SYD7:15 pmSydney Kingsford Smith
39h 11m
2 stops
DEN4:26 pmDenver Intl
$968
Find similar

Air New Zealand flights from Colorado to Sydney

Our best Air New Zealand deals on Colorado to Sydney flight tickets
Air New Zealand
Oct 22
DEN3:46 pmDenver Intl
23h 59m
2 stops
SYD8:45 amSydney Kingsford Smith
Nov 5
SYD1:55 pmSydney Kingsford Smith
22h 03m
2 stops
DEN5:58 pmDenver Intl
$1,117
Find similar
Air New Zealand
Sep 13
DEN8:31 pmDenver Intl
44h 14m
2 stops
SYD8:45 amSydney Kingsford Smith
Sep 23
SYD11:50 amSydney Kingsford Smith
23h 50m
2 stops
DEN7:40 pmDenver Intl
$1,124
Find similar
Air New Zealand
Nov 30
DEN11:58 pmDenver Intl
40h 32m
2 stops
SYD10:30 amSydney Kingsford Smith
Dec 14
SYD9:55 amSydney Kingsford Smith
26h 00m
2 stops
DEN5:55 pmDenver Intl
$1,141
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 August 11, 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

Wed 11/19

3:53 pm-9:35 am

1 stop23h 42m

Sydney Kingsford Smith

Mon 11/24

8:30 am-12:23 pm

2 stops21h 53m

$935

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 1/12

7:05 pm-6:05 pm

2 stops29h 00m

Sydney Kingsford Smith

Mon 1/19

11:20 am-6:04 pm

2 stops24h 44m

$945

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 11/10

9:48 am-12:30 pm

2 stops32h 42m

Sydney Kingsford Smith

Sat 11/15

2:30 pm-7:21 pm

2 stops22h 51m

$947

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 11/18

3:53 pm-9:35 am

1 stop23h 42m

Sydney Kingsford Smith

Tue 12/9

7:15 pm-12:37 pm

2 stops35h 22m

$967

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 10/22

3:46 pm-8:45 am

2 stops23h 59m

Sydney Kingsford Smith

Wed 11/5

1:55 pm-5:58 pm

2 stops22h 03m

$1,117

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 9/13

8:31 pm-8:45 am

2 stops44h 14m

Sydney Kingsford Smith

Tue 9/23

11:50 am-7:40 pm

2 stops23h 50m

$1,124

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Tue 9/23

12:02 pm-6:35 am

1 stop26h 33m

Sydney Kingsford Smith

Tue 9/30

9:25 am-5:53 pm

1 stop24h 28m

$1,375

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Tue 9/23

2:40 pm-7:00 am

2 stops24h 20m

Sydney Kingsford Smith

Tue 9/30

9:30 am-12:36 pm

1 stop19h 06m

$1,457

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Tue 9/23

12:50 pm-6:55 am

2 stops26h 05m

Sydney Kingsford Smith

Tue 9/30

9:30 am-2:36 pm

2 stops21h 06m

$1,515

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 11/13

12:00 pm-8:30 am

1 stop26h 30m

Sydney Kingsford Smith

Mon 11/17

10:40 am-6:44 pm

1 stop26h 04m

$1,569

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 $879.

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 $1,075 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 $909 on momondo.

Can stopping save me money on Colorado to Sydney flights?

You could potentially save up to 49% 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

Best Price Found

$457

Fastest flight time

20h 05m

Direct flights

None

Airports in Sydney

1 airport
The best one-way flight to Sydney from Colorado in the past 72 hours is $457. The best round-trip flight deal from Colorado to Sydney found on momondo in the last 72 hours is $935.
The fastest flight from Colorado to Sydney takes 20h 05m
There are no direct flights from Colorado to Sydney. Popular non-direct route for this connection is Denver Intl Airport - Sydney Kingsford Smith Airport.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)
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
Qantas AirwaysPriceFrom $802Free CancellationRating
7.5
893 reviews
Search Qantas Airways flights
DeltaPriceFrom $830Free CancellationRating
8.0
7,979 reviews
Search Delta flights
American AirlinesPriceFrom $832Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air New ZealandPriceFrom $834Free CancellationRating
8.0
503 reviews
Search Air New Zealand flights
Air CanadaPriceFrom $980Free CancellationRating
7.1
9,915 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,260Free CancellationRating
7.4
8,920 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
Coogee
Cronulla
Penrith
Manly
Lithgow
Charlestown
Swansea
Leura
Terrigal

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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