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$638+ 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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — DEN
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
1 adult, Economy
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1. Tell us where you want to go

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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 March 21, 2026.

This BYOjet deal was found by Cheapflights users on 3/20. 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.
Mon 11/169:00 am
SYD
-
DEN
2 stops26h 44m
Air Canada
Tue 11/247:05 pm
DEN
-
SYD
1 stop20h 30m
Air Canada
Deal found 3/20$989
This Air Canada deal was found by Cheapflights users on 3/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:20 am
SYD
-
DEN
2 stops22h 43m
Air Canada
Tue 6/167:50 pm
DEN
-
SYD
1 stop19h 30m
Air Canada
Deal found 3/20$997
This Gotogate deal was found by Cheapflights users on 3/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:20 am
SYD
-
DEN
1 stop19h 15m
Air Canada
Mon 5/47:50 pm
DEN
-
SYD
1 stop19h 30m
Air Canada
Deal found 3/20$998
This Air Canada deal was found by Cheapflights users on 3/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/49:20 am
SYD
-
DEN
2 stops24h 47m
Air Canada
Mon 5/117:50 pm
DEN
-
SYD
1 stop19h 30m
Air Canada
Deal found 3/20$1,002
This Air Canada deal was found by Cheapflights users on 3/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:20 am
SYD
-
DEN
1 stop19h 15m
Air Canada
Mon 4/274:13 pm
DEN
-
SYD
2 stops47h 07m
Air Canada
Deal found 3/16$1,018
This Trip.com deal was found by Cheapflights users on 3/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:10 am
SYD
-
DEN
1 stop20h 02m
Multiple Airlines
Tue 6/161:30 pm
DEN
-
SYD
1 stop25h 35m
Multiple Airlines
Deal found 3/16$1,021

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 March 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$975
(BYOjet)

One-way from

$629
(Jetabroad)

Popular in

January

Cheapest in

November

Average price

$985
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. 10% potential increase in price ($126 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 21, 2026.
Use the filters below to find and compare flights from Sydney to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Mon 5/4

9:20 am-6:07 pm

2 stops24h 47m

Denver Intl

Mon 5/11

7:50 pm-7:20 am

1 stop19h 30m

$1,002

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 5/5

9:20 am-4:03 pm

2 stops22h 43m

Denver Intl

Tue 6/16

7:18 pm-7:20 am

2 stops44h 02m

$1,029

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 4/21

9:20 am-4:03 pm

2 stops22h 43m

Denver Intl

Fri 5/29

7:50 pm-7:20 am

1 stop19h 30m

$1,048

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 5/3

9:20 am-11:10 pm

1 stop29h 50m

Denver Intl

Sun 5/10

6:10 pm-7:20 am

2 stops45h 10m

$1,075

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Thu 4/23

9:20 am-12:35 pm

1 stop19h 15m

Denver Intl

Mon 4/27

4:13 pm-7:20 am

2 stops47h 07m

$1,081

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 5/5

9:10 am-12:06 pm

1 stop18h 56m

Denver Intl

Tue 6/16

6:08 pm-7:05 am

1 stop20h 57m

$1,087
Quickest round-trip

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Mon 8/10

9:10 am-11:28 am

1 stop18h 18m

Denver Intl

Mon 8/24

5:59 pm-7:05 am

1 stop21h 06m

$1,087

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 5/5

9:10 am-4:19 pm

2 stops23h 09m

Denver Intl

Tue 6/16

3:11 pm-7:05 am

2 stops23h 54m

$1,089

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 8/11

9:25 pm-8:12 am

2 stops26h 47m

Denver Intl

Wed 8/26

4:21 pm-6:55 am

1 stop22h 34m

$1,098

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 8/11

10:20 am-12:22 pm

1 stop18h 02m

Denver Intl

Sat 8/22

9:25 pm-7:00 am

1 stop41h 35m

$1,103

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 19 resultsSorted by cheapest first
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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-Denver flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 March 13, 2026.

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 53 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, April is the cheapest month in which you can book a flight from Sydney to Denver (average of $477). Flying from Sydney to Denver in January is currently the most expensive (average of $1,009). 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.

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 March 21, 2026.
Get a feel of what it's like to fly with Qantas Airways and United 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
1,006 reviews

Boarding

7.7

Comfort

7.4

Entertainment

7.2

Food

7.0

Overall

7.5

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.
Qantas Airways
7.5
Good
1,006 reviews
Qantas Airways
7.5
Good
1,006 reviews

Boarding

7.7

Comfort

7.4

Entertainment

7.2

Food

7.0

Overall

7.5

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.
United Airlines
7.4
Good
9,452 reviews
Qantas Airways
7.5
Good
1,006 reviews

Boarding

7.7

Comfort

7.4

Entertainment

7.2

Food

7.0

Overall

7.5

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.

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 18h 56m. Fly via Air Canada or Qantas Airways 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 $787 on this airline. An additional option worth looking into is United Airlines, starting at $977. You may be able to fly from Sydney to Denver for 29% 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 $446. Air Canada flights start at $582 while deals on United Airlines start at $809 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, April is the cheapest month in which you can book a flight from Sydney to Denver (average of $477). Flying from Sydney to Denver in January is currently the most expensive (average of $1,009). 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
Thornton
Black Hawk
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Glendale
Manitou Springs
Frisco
Englewood
Fort Morgan
Brighton

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.

Top 2 airlines flying from Sydney to Denver

Discover the top 2 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 March 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$787Average$1,336FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$977Average$1,528FlexibilityNo cancel feeOn-time69%

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