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Denver

$543+ Cheap flights from Sydney (SYD) to Denver (DEN)

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — DEN
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Find cheap flights from Sydney to Denver 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

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Cheapflights Tip: The best prices from Sydney Kingsford Smith to Denver Intl are usually found in February or March, booked 46 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Sydney to Denver

Cheapest flights from Sydney to Denver
Explore the most affordable flight options available from Sydney to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This United Airlines deal was found by Cheapflights users on 12/4. 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.
Sun 12/1411:20 amSYD - DEN
1 stop21h 07mUnited Airlines
Sun 12/283:55 pmDEN - SYD
1 stop23h 10mUnited Airlines
Deal found 12/4$1,160
This United Airlines deal was found by Cheapflights users on 12/2. 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
2 stops23h 16mUnited Airlines
Sun 1/43:55 pmDEN - SYD
2 stops23h 20mUnited Airlines
Deal found 12/2$1,514
This Cheapflightsfares deal was found by Cheapflights users on 12/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1411:20 amSYD - DEN
1 stop22h 34mQantas Airways
Sun 12/288:11 pmDEN - SYD
1 stop18h 49mQantas Airways
Deal found 12/2$1,539
This United Airlines deal was found by Cheapflights users on 12/4. 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
2 stops23h 16mUnited Airlines
Sat 1/39:05 pmDEN - SYD
1 stop39h 55mUnited Airlines
Deal found 12/4$1,561
This United Airlines deal was found by Cheapflights users on 12/4. 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 12/812:10 pmSYD - DEN
2 stops38h 10mUnited Airlines
Wed 12/107:45 amDEN - SYD
1 stop29h 15mUnited Airlines
Deal found 12/4$1,565
This oojo deal was found by Cheapflights users on 12/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/811:20 amSYD - DEN
1 stop18h 46mQantas Airways
Wed 12/106:10 pmDEN - SYD
1 stop20h 50mQantas Airways
Deal found 12/4$1,576
This American Airlines deal was found by Cheapflights users on 12/4. 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 12/811:20 amSYD - DEN
2 stops23h 00mAmerican Airlines
Wed 12/102:19 pmDEN - SYD
2 stops24h 41mAmerican Airlines
Deal found 12/4$1,585
This United Airlines deal was found by Cheapflights users on 12/1. 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 12/192:00 pmSYD - DEN
1 stop18h 44mUnited Airlines
Sat 1/37:47 amDEN - SYD
1 stop28h 33mUnited Airlines
Deal found 12/1$1,616
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Sat 12/2011:50 amSYD - DEN
1 stop24h 29mUnited Airlines
Sat 1/36:00 pmDEN - SYD
1 stop43h 00mUnited Airlines
Deal found 12/3$1,629

Find flight deals from Sydney to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$864
(Air Canada)

One-way from

$543
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,511
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 Denver Intl
Search Deals
One-way flight from Sydney Kingsford Smith to Denver Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($227 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 December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sydney to Denver 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 4, 2025.
Use the filters below to find and compare flights from Sydney to Denver that are best for you.

Fly from

Sydney

Fly to

Denver

Route

Depart

Return

Price

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 1/18

2:05 pm-6:13 pm

1 stop22h 08m

Denver Intl

Sun 1/25

7:23 pm-9:00 am

1 stop19h 37m

$1,074

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 12/14

11:20 am-2:27 pm

1 stop21h 07m

Denver Intl

Sun 12/28

3:55 pm-9:05 am

1 stop23h 10m

$1,160

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 1/18

7:45 am-6:18 pm

2 stops28h 33m

Denver Intl

Mon 1/26

3:48 pm-7:05 pm

2 stops33h 17m

$1,182

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 1/18

2:00 pm-10:12 am

2 stops38h 12m

Denver Intl

Mon 1/26

6:05 am-7:25 am

1 stop31h 20m

$1,265

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 3/3

11:20 am-5:44 pm

1 stop24h 24m

Denver Intl

Sat 3/7

8:59 pm-8:35 am

1 stop41h 36m

$1,337

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 1/18

2:00 pm-10:12 am

2 stops38h 12m

Denver Intl

Sun 1/25

6:05 am-7:25 am

1 stop31h 20m

$1,340

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Thu 1/29

11:20 am-4:40 pm

2 stops47h 20m

Denver Intl

Sun 2/1

5:30 pm-9:35 am

2 stops46h 05m

$1,509

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Wed 12/17

11:20 am-4:36 pm

2 stops23h 16m

Denver Intl

Sun 1/4

3:55 pm-9:15 am

2 stops23h 20m

$1,514

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Wed 12/17

11:20 am-4:36 pm

2 stops23h 16m

Denver Intl

Sat 1/3

9:11 pm-9:15 am

1 stop42h 04m

$1,514

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Wed 2/4

5:00 pm-4:25 pm

3 stops41h 25m

$543

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 18 results
1
2

Compare providers for flights from Sydney to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to Denver in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sydney-Denver flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sydney-Denver flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Sydney-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sydney-Denver flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sydney-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sydney to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver 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 Denver

How far ahead should I book a flight from Sydney to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Sydney to Denver. Price data was last updated on November 28, 2025.

The price you pay for your flight from Sydney to Denver may vary depending on when you book. For the best chance of a lower fare, look to book 46 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Sydney to Denver (average of $609). Flying from Sydney to Denver in December is currently the most expensive (average of $1,050). 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 DEN?

Find hourly flight availability from Sydney to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.

When flying from Sydney to Denver, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 31% versus a flight in the evening.

How much does it cost to fly round-trip from Sydney to Denver?

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated December 4, 2025.
Get a feel of what it's like to fly with Qantas Airways, United Airlines, and American Airlines from Sydney to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
947 reviews

Boarding

7.7

Entertainment

7.2

Food

7.0

Comfort

7.5

Crew

8.1

Overall

7.5

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
947 reviews
Qantas Airways
7.5
Good
947 reviews

Boarding

7.7

Entertainment

7.2

Food

7.0

Comfort

7.5

Crew

8.1

Overall

7.5

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
9,066 reviews
Qantas Airways
7.5
Good
947 reviews

Boarding

7.7

Entertainment

7.2

Food

7.0

Comfort

7.5

Crew

8.1

Overall

7.5

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
11,044 reviews
Qantas Airways
7.5
Good
947 reviews

Boarding

7.7

Entertainment

7.2

Food

7.0

Comfort

7.5

Crew

8.1

Overall

7.5

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 Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Sydney to Denver?

    There are many flights that can get you from Sydney to Denver in 21h 07m. Fly via Qantas Airways, United Airlines, or Air New Zealand to get the fastest option. The distance between Sydney and Denver is about 8348 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Sydney to Denver round-trip?

    Our cheapest airline available from Sydney to Denver is Qantas Airways. Our recent data shows that you can find tickets from as low as $693 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $775 and $977 round-trip. You may be able to fly from Sydney to Denver for 34% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with Qantas Airways, which is currently one of the cheapest options available, starting at $353. United Airlines flights start at $809 while deals on Delta start at $820 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sydney to Denver 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 Denver?

    Currently, March is the cheapest month in which you can book a flight from Sydney to Denver (average of $609). Flying from Sydney to Denver in December is currently the most expensive (average of $1,050). 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Broomfield
Lakewood
Golden
Winter Park
Thornton
Greeley
Lone Tree
Cripple Creek
Silverthorne
Central City
Frisco
Wheat Ridge
Manitou Springs
Fort Morgan
Brighton
Longmont
Idaho Springs
Parker

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sydney to Denver

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Aspen flights
Sydney to Colorado Springs flights

Top 3 airlines flying from Sydney to Denver

Discover the top 3 airlines that operate flights from Sydney to Denver. 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 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$693Average$787FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$775Average$1,204FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$977Average$1,529FlexibilityNo cancel feeOn-time69%

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