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Cheap flights from Sydney to Colorado from $870

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — DEN
17 Dec — 24 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Sydney to Colorado

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Colorado
Explore the most affordable flight options available from Sydney to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 November 2025.

Fri 21/1121:40SYD - DEN
2 stops32h 00mAlaska Airlines
Sun 23/1118:56DEN - SYD
2 stops30h 49mAlaska Airlines
Deal found 17/11$2,015
Sun 16/1121:40SYD - DEN
2 stops32h 47mHawaiian Airlines
Thu 20/1113:23DEN - SYD
2 stops36h 22mHawaiian Airlines
Deal found 15/11$2,096
Fri 12/1217:30SYD - DEN
2 stops24h 47mMultiple Airlines
Sat 24/111:02DEN - SYD
1 stop26h 23mMultiple Airlines
Deal found 16/11$2,224
Fri 26/1211:20SYD - DEN
1 stop24h 24mAir Canada
Wed 14/111:46DEN - SYD
2 stops36h 19mAir Canada
Deal found 15/11$2,236
Thu 25/1214:15SYD - DEN
1 stop26h 02mDelta
Wed 14/118:23DEN - SYD
2 stops20h 07mDelta
Deal found 15/11$2,272
Thu 25/1211:20SYD - DEN
2 stops39h 35mAir Canada
Wed 14/111:46DEN - SYD
2 stops36h 19mAir Canada
Deal found 15/11$2,304
Sat 15/1119:40SYD - DEN
2 stops38h 46mMultiple Airlines
Fri 21/1119:26DEN - SYD
2 stops44h 09mMultiple Airlines
Deal found 14/11$2,342
Fri 26/1210:40SYD - DEN
1 stop24h 16mDelta
Mon 12/107:00DEN - SYD
2 stops31h 30mDelta
Deal found 15/11$2,347
Wed 24/1211:20SYD - DEN
1 stop25h 54mAir Canada
Fri 16/119:05DEN - SYD
2 stops29h 00mAir Canada
Deal found 15/11$2,379
Thu 4/1217:45SYD - COS
2 stops34h 02mAmerican Airlines
Mon 8/1205:33COS - SYD
1 stop31h 22mAmerican Airlines
Deal found 16/11$2,386
Wed 24/1220:15SYD - DEN
2 stops41h 33mMultiple Airlines
Sat 17/110:42DEN - SYD
1 stop26h 43mMultiple Airlines
Deal found 15/11$2,406
Fri 26/1211:20SYD - DEN
1 stop18h 58mUnited Airlines
Fri 16/119:40DEN - SYD
1 stop19h 25mUnited Airlines
Deal found 15/11$2,422

Cheap flight deals from Sydney to Colorado

Keep the following information in mind while searching for Sydney to Colorado flight deals. Data was last updated 17 November 2025.

Round-trip from

$1,709

One-way from

$870

Popular in

December

Cheapest in

February

Average price

$1,517
Air New Zealand
  • Air New Zealand
  • 1/5-16/5
  • 4 total stops
  • 45h 55m total
  • Sydney to Colorado
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 22/1
  • 2 total stops
  • 31h 13m total
  • Sydney to Colorado
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($530 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($98 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Colorado 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, Cheapflights users made 647,157 searches. Data last updated 17 November 2025.
Use the filters below to find and compare flights from Sydney to Colorado that are best for you.

Fly from

Sydney

Fly to

Colorado

Route

Depart

Return

Price

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Thu 9/4

09:20-12:38

1 stop19h 18m

Denver Intl

Fri 24/4

11:59-07:20

1 stop27h 21m

$1,908

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sat 21/3

10:20-12:37

1 stop19h 17m

Denver Intl

Wed 1/4

11:59-08:20

1 stop27h 21m

$1,908

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Mon 12/1

10:40-23:25

2 stops30h 45m

Denver Intl

Sun 25/1

18:23-08:30

2 stops20h 07m

$1,973

SydneyAspen

SYD - ASE

SYDASE

Sydney Kingsford Smith

Fri 6/3

10:40-12:50

1 stop20h 10m

Aspen Pitkin County

Tue 10/3

13:37-07:30

1 stop24h 53m

$1,982

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Fri 10/4

07:00-12:38

2 stops21h 38m

Denver Intl

Sat 25/4

19:05-11:40

2 stops24h 35m

$1,993

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Fri 12/12

17:30-00:17

2 stops24h 47m

Denver Intl

Sat 24/1

11:02-07:25

1 stop26h 23m

$2,224

SydneyAspen

SYD - ASE

SYDASE

Sydney Kingsford Smith

Thu 19/3

13:15-14:03

1 stop17h 48m

Aspen Pitkin County

Mon 23/3

13:37-07:25

1 stop24h 48m

$2,241

SydneyAspen

SYD - ASE

SYDASE

Sydney Kingsford Smith

Fri 6/3

09:55-22:15

2 stops30h 20m

Aspen Pitkin County

Tue 10/3

13:40-10:30

2 stops27h 50m

$2,250

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Thu 25/12

14:00-18:11

1 stop22h 11m

Denver Intl

Wed 14/1

13:35-09:15

1 stop25h 40m

$2,272

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Mon 29/12

10:40-19:13

2 stops26h 33m

Denver Intl

Wed 14/1

12:30-08:30

2 stops26h 00m

$2,272

Flights are sorted by cheapest return flights first.

Deals found on 15/11

Showing 1-10 of 27 results
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Best time to book a flight from Sydney to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Sydney with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Colorado

What is the cheapest month to book a flight from Sydney to Colorado?

Currently, March is the cheapest month in which you can book a flight from Sydney to Colorado (average of $932). Flying from Sydney to Colorado in December is currently the most expensive (average of $1,605). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SYD to CO?

Find hourly flight availability from Sydney to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 November 2025.

A simple way to save on the total cost of your ticket is to fly from Sydney to Colorado in the evening. If you’re flexible enough to do this you can expect to save up to 47% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated 17 November 2025.
See what other customers who have flown with Air New Zealand, Qantas Airways, andUnited Airlines from Sydney to Colorado have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very Good
527 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
Air New Zealand
8.0
Very Good
527 reviews
Air New Zealand
8.0
Very Good
527 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
Qantas Airways
7.6
Good
938 reviews
Air New Zealand
8.0
Very Good
527 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
United Airlines
7.4
Good
9,014 reviews
Air New Zealand
8.0
Very Good
527 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
Air Canada
7.1
Good
10,457 reviews
Air New Zealand
8.0
Very Good
527 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sydney to Colorado?

    Sydney Kingsford Smith (SYD), located 7.5 km from the city centre, is the airport you fly out of when you book flights from Sydney to Colorado.

  • How long is the flight from Sydney to Colorado?

    For as low as $1,908, Air Canada can have you in Colorado from Sydney in 19h 18m. Airlines will cover a distance of 13435 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Sydney to Colorado?

    The most popular flight routes from Sydney to Colorado are Sydney Kingsford Smith - Denver Intl, Sydney Kingsford Smith - Colorado Springs and Sydney Kingsford Smith - Aspen Pitkin County.

  • Can I find deals for flights from Sydney to Colorado that include hotel bookings?

    Yes. In addition to deals on Sydney to Colorado flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Colorado?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Colorado.

  • Can I find deals for business class flights from Sydney to Colorado?

    Yes. Cheapflights offers flight deals from Sydney to Colorado by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sydney to Colorado?

    Currently, March is the cheapest month in which you can book a flight from Sydney to Colorado (average of $932). Flying from Sydney to Colorado in December is currently the most expensive (average of $1,605). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Sydney to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Sydney to Colorado

Discover the top 4 airlines that operate flights from Sydney to Colorado. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 17 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,040Average$1,231FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air CanadaCheapest$1,311Average$1,658FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapest$1,325Average$1,553FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,423Average$2,042FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to Colorado?

Deals for Sydney to Colorado flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Colorado?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Sydney to Colorado.

Can Cheapflights find flights from Sydney to Colorado with no change fees?

Yes, we can. To see specific flights from Sydney to Colorado with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Sydney to Colorado become cheaper?

Yes, Cheapflights offers price alerts on Sydney to Colorado flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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