HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Colorado

$545+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — DEN
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sydney to Colorado with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find 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 October 30, 2025.

This BYOjet deal was found by Cheapflights users on 10/30. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:00 amSYD - DEN
2 stops21h 23mMultiple Airlines
Thu 12/410:06 amDEN - SYD
2 stops26h 49mMultiple Airlines
Deal found 10/30$834
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 11/1712:10 pmSYD - COS
2 stops20h 19mUnited Airlines
Sat 1/1711:43 amCOS - SYD
2 stops49h 17mUnited Airlines
Deal found 10/30$931
This Qantas Airways deal was found by Cheapflights users on 10/30. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/172:05 pmSYD - COS
1 stop22h 01mQantas Airways
Sat 1/173:05 pmCOS - SYD
1 stop21h 50mQantas Airways
Deal found 10/30$972
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 11/1711:20 amSYD - COS
2 stops24h 46mAmerican Airlines
Sat 1/178:16 amCOS - SYD
1 stop28h 39mAmerican Airlines
Deal found 10/30$979
This Trip.com deal was found by Cheapflights users on 10/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1711:45 amSYD - COS
2 stops41h 42mAir New Zealand
Mon 11/2412:10 pmCOS - SYD
2 stops26h 35mAir New Zealand
Deal found 10/28$1,239
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/1712:10 pmSYD - DEN
1 stop18h 00mUnited Airlines
Sat 1/37:48 pmDEN - SYD
1 stop41h 12mUnited Airlines
Deal found 10/30$1,524
This American Airlines deal was found by Cheapflights users on 10/30. 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 12/177:05 amSYD - DEN
2 stops26h 44mAmerican Airlines
Sun 1/45:05 pmDEN - SYD
2 stops22h 45mAmerican Airlines
Deal found 10/30$1,557
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Mon 12/152:05 pmSYD - DEN
1 stop26h 17mAmerican Airlines
Wed 1/217:23 pmDEN - SYD
1 stop19h 37mAmerican Airlines
Deal found 10/29$1,562
This Qantas Airways deal was found by Cheapflights users on 10/30. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/145:45 pmSYD - DEN
1 stop18h 59mQantas Airways
Sun 12/285:05 pmDEN - SYD
1 stop20h 20mQantas Airways
Deal found 10/30$1,570
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Mon 11/1712:10 pmSYD - COS
2 stops23h 30mUnited Airlines
Mon 11/2412:10 pmCOS - SYD
1 stop24h 50mUnited Airlines
Deal found 10/28$1,591
This United Airlines deal was found by Cheapflights users on 10/29. 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 12/1911:50 amSYD - DEN
1 stop36h 51mUnited Airlines
Sat 1/39:05 pmDEN - SYD
1 stop39h 55mUnited Airlines
Deal found 10/29$1,591
This Qantas Airways deal was found by Cheapflights users on 10/29. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:45 pmSYD - DEN
1 stop36h 21mQantas Airways
Wed 1/2112:53 pmDEN - SYD
1 stop24h 32mQantas Airways
Deal found 10/29$1,594

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$810
(BestPriceTravel)

One-way from

$545
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$1,026
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. 17% potential increase in price ($224 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 30, 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

Mon 3/23

10:25 am-12:37 pm

1 stop19h 12m

Denver Intl

Tue 4/7

9:58 am-7:20 am

2 stops29h 22m

$817

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 2/3

11:20 am-4:30 pm

1 stop23h 10m

Denver Intl

Tue 3/3

7:05 pm-9:35 am

1 stop20h 30m

$866

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Thu 1/29

11:20 am-5:44 pm

1 stop24h 24m

Denver Intl

Tue 3/3

7:05 pm-9:35 am

1 stop20h 30m

$866

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Fri 1/30

11:20 am-12:37 pm

1 stop19h 17m

Denver Intl

Sun 3/8

8:05 am-8:35 am

1 stop31h 30m

$913

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 2/1

11:20 am-6:07 pm

2 stops24h 47m

Denver Intl

Mon 3/9

7:05 pm-8:35 am

1 stop20h 30m

$915

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 1/25

11:20 am-7:29 pm

1 stop26h 09m

Denver Intl

Sun 3/8

5:30 pm-8:35 am

2 stops46h 05m

$922

SydneyColorado Springs

SYD - COS

SYDCOS

Sydney Kingsford Smith

Mon 11/17

12:10 pm-2:29 pm

2 stops20h 19m

Colorado Springs

Sat 1/17

11:43 am-7:00 am

2 stops49h 17m

$931

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 1/27

2:00 pm-4:37 pm

1 stop20h 37m

Denver Intl

Wed 3/4

7:45 am-7:00 am

1 stop29h 15m

$931

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 2/3

12:10 pm-12:23 pm

1 stop18h 13m

Denver Intl

Wed 3/4

7:45 am-7:00 am

1 stop29h 15m

$931

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Mon 1/26

11:20 am-12:19 pm

1 stop18h 59m

Denver Intl

Wed 3/4

7:45 am-7:00 am

1 stop29h 15m

$931

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 37 results
1
2
3
4

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 $609). Flying from Sydney to Colorado in December is currently the most expensive (average of $1,116). 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 October 30, 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 October 30, 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
925 reviews

Food

7.0

Crew

8.2

Comfort

7.5

Overall

7.5

Boarding

7.7

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
Qantas Airways
7.5
Good
925 reviews
Qantas Airways
7.5
Good
925 reviews

Food

7.0

Crew

8.2

Comfort

7.5

Overall

7.5

Boarding

7.7

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
United Airlines
7.4
Good
8,998 reviews
Qantas Airways
7.5
Good
925 reviews

Food

7.0

Crew

8.2

Comfort

7.5

Overall

7.5

Boarding

7.7

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
American Airlines
7.2
Good
11,030 reviews
Qantas Airways
7.5
Good
925 reviews

Food

7.0

Crew

8.2

Comfort

7.5

Overall

7.5

Boarding

7.7

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.

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 19h 12m. Sydney and Colorado are separated by a distance of 8348 mi. This flight may include one or multiple 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 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 $609). Flying from Sydney to Colorado in December is currently the most expensive (average of $1,116). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sydney to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Los Angeles flights
Sydney to Honolulu flights
Sydney to Dallas/Fort Worth flights
Sydney to John F Kennedy Intl flights
Sydney to San Francisco flights
Sydney to LaGuardia flights
Sydney to Newark flights
Sydney to Ontario flights
Sydney to Seattle flights
Sydney to Hobby flights
Sydney to George Bush Intcntl flights
Sydney to O'Hare Intl flights
Sydney to Las Vegas flights
Sydney to Miami flights
Sydney to Kailua-Kona flights
Sydney to Denver flights
Sydney to Orlando flights
Sydney to Santa Ana flights
Sydney to Fort Lauderdale flights
Sydney to Atlanta flights
Sydney to Portland flights
Sydney to Midway flights
Sydney to Dulles Intl flights
Sydney to Minneapolis flights
Sydney to San Jose flights
Sydney to West Palm Beach flights
Sydney to Nashville flights
Sydney to Kahului flights
Coolangatta to Honolulu flights
Sydney to Reagan-National flights
Sydney to Salt Lake City flights
Sydney to Boston flights
Sydney to Oakland flights
Sydney to Baltimore flights
Sydney to Sky Harbor Intl flights
Sydney to Detroit flights
Sydney to Long Beach flights
Coolangatta to Los Angeles flights
Coolangatta to San Francisco flights
Sydney to Pittsburgh flights
Coolangatta to John F Kennedy Intl flights
Sydney to Melbourne flights
Coolangatta to Newark flights
Sydney to San Diego flights
Sydney to Raleigh flights
Sydney to El Paso flights
Sydney to Kansas City flights

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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$693Average$802FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$775Average$1,423FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$977Average$1,555FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.