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$622+ Cheap flights from Sydney (SYD) to Colorado

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — DEN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Sydney to Colorado

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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1711:20 amSYD - DEN
1 stop19h 07mUnited Airlines
Sat 1/39:11 pmDEN - SYD
1 stop42h 04mUnited Airlines
Deal found 12/16$1,116
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1911:20 amSYD - DEN
1 stop23h 17mUnited Airlines
Sat 1/36:53 pmDEN - SYD
1 stop42h 07mUnited Airlines
Deal found 12/17$1,191
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1710:40 amSYD - DEN
2 stops26h 14mDelta
Sun 1/45:30 amDEN - SYD
2 stops31h 20mDelta
Deal found 12/16$2,032
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1710:40 amSYD - DEN
2 stops26h 14mDelta
Sat 1/35:30 amDEN - SYD
2 stops31h 20mDelta
Deal found 12/16$2,082
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1910:40 amSYD - DEN
2 stops30h 01mDelta
Sat 1/35:30 amDEN - SYD
2 stops31h 20mDelta
Deal found 12/17$2,129
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/179:55 pmSYD - DEN
2 stops36h 35mMultiple Airlines
Sun 1/42:45 pmDEN - SYD
1 stop22h 10mMultiple Airlines
Deal found 12/17$2,417
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/179:55 pmSYD - DEN
2 stops36h 35mMultiple Airlines
Sat 1/35:05 pmDEN - SYD
1 stop20h 20mMultiple Airlines
Deal found 12/17$2,768

Find flight deals from Sydney to Colorado

Keep the following information in mind while searching for Sydney to Colorado flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$863
(Trip.com)

One-way from

$622
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,457
Provider with most accurate pricing for Sydney Kingsford Smith-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Denver Intl flights.
Search Deals
From Sydney Kingsford Smith to Colorado
Search Deals
One-way flight from Sydney Kingsford Smith to Colorado
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($211 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 18, 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

Fri 1/30

2:00 pm-11:31 pm

2 stops27h 31m

Denver Intl

Fri 2/6

6:05 am-10:05 pm

2 stops46h 00m

$863

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 2/1

2:00 pm-11:31 pm

2 stops27h 31m

Denver Intl

Sun 2/8

6:05 am-12:35 pm

2 stops36h 30m

$905

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sat 5/9

11:55 am-7:40 pm

2 stops23h 45m

Denver Intl

Sun 5/24

9:52 am-8:45 am

2 stops30h 53m

$1,062

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Mon 1/26

11:20 am-6:06 pm

2 stops24h 46m

Denver Intl

Mon 2/9

11:43 am-9:00 am

2 stops27h 17m

$1,090

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Wed 3/4

11:20 am-12:11 pm

1 stop18h 51m

Denver Intl

Sun 5/24

5:36 pm-7:05 am

1 stop21h 29m

$1,109

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Wed 3/4

10:40 am-5:27 pm

2 stops24h 47m

Denver Intl

Sun 5/24

12:45 pm-6:35 am

2 stops25h 50m

$1,115

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sat 1/31

1:50 pm-9:59 am

2 stops38h 09m

Denver Intl

Sat 2/7

9:44 pm-7:25 am

1 stop39h 41m

$1,137

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 3/17

5:45 pm-7:14 pm

1 stop18h 29m

Denver Intl

Fri 4/17

4:42 pm-7:05 am

1 stop22h 23m

$1,162

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sat 1/31

1:55 pm-6:18 pm

2 stops22h 23m

Denver Intl

Sat 2/7

3:48 pm-8:45 am

2 stops22h 57m

$1,164

SydneyColorado Springs

SYD - COS

SYDCOS

Sydney Kingsford Smith

Thu 2/19

11:20 am-2:30 pm

2 stops21h 10m

Colorado Springs

Mon 2/23

3:40 pm-9:35 am

2 stops23h 55m

$1,580

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 20 results
1
2

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 round-trip 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 $591). Flying from Sydney to Colorado in December is currently the most expensive (average of $1,041). 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 December 18, 2025.

It’s optimal to fly from Sydney to Colorado at noon. By choosing this option you can save up to 20% on the cost of your flight, compared to 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 December 18, 2025.
Read through reviews of airlines operating flights from Sydney to Colorado, such as Qantas Airways, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
947 reviews

Comfort

7.5

Food

7.0

Crew

8.1

Overall

7.5

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
Qantas Airways
7.5
Good
947 reviews
Qantas Airways
7.5
Good
947 reviews

Comfort

7.5

Food

7.0

Crew

8.1

Overall

7.5

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
United Airlines
7.4
Good
9,090 reviews
Qantas Airways
7.5
Good
947 reviews

Comfort

7.5

Food

7.0

Crew

8.1

Overall

7.5

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
American Airlines
7.2
Good
11,054 reviews
Qantas Airways
7.5
Good
947 reviews

Comfort

7.5

Food

7.0

Crew

8.1

Overall

7.5

Entertainment

7.2

Boarding

7.7

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.

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?

    Located just 4.6 mi from the city center, Sydney Kingsford Smith (SYD) is the airport most travelers will use when flying to Colorado from Sydney.

  • How long is the flight from Sydney to Colorado?

    Departing from Sydney to Colorado will take you 21h 10m. Sydney and Colorado are separated by a distance of 8320 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Sydney to Colorado one-way?

    The cheapest airlines for a one-way flight from Sydney to Colorado are Qantas Airways ($353), United Airlines ($809), and Delta ($820).

  • 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 - Aspen Pitkin County and Sydney Kingsford Smith - Colorado Springs.

  • 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 vacation 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 $591). Flying from Sydney to Colorado in December is currently the most expensive (average of $1,041). 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 3 airlines flying from Sydney to Colorado

Discover the top 3 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 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$693Average$787FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$775Average$1,204FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$977Average$1,528FlexibilityNo cancel feeOn-time69%

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