HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$489+ Cheap flights from Sydney (SYD) to Denver (DEN)

SYD — DEN
Oct 2 — Oct 91
Fri 10/2
Fri 10/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

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

Cheap flight deals from Sydney to Denver

Cheapest flights from Sydney to Denver

Thu 10/222:15 pm -
3 stops26h 28m
Thu 10/299:10 am -
2 stops34h 25m
Deal found 8/28$861
Wed 9/301:15 pm -
3 stops26h 29m
Fri 10/301:10 pm -
2 stops30h 25m
Deal found 8/29$886
Thu 11/122:00 pm -
2 stops22h 03m
Thu 12/310:33 pm -
1 stop37h 52m
Deal found 9/1$920
Fri 10/92:15 pm -
3 stops35h 55m
Sun 10/189:00 am -
2 stops44h 25m
Deal found 8/29$926
Tue 9/2210:20 am -
2 stops38h 01m
Thu 9/246:00 am -
1 stop32h 55m
Deal found 9/1$990
Tue 10/136:50 pm -
1 stop31h 40m
Tue 10/201:10 pm -
1 stop25h 20m
Deal found 8/28$1,163
Wed 9/309:20 am -
1 stop23h 38m
Fri 10/3011:39 am -
2 stops27h 56m
Deal found 8/29$1,192

Find flight deals from Sydney to Denver

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$861
(Trip.com)

One-way from

$489
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$1,217
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. 15% potential increase in price ($242 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
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 Sydney Kingsford Smith - DEN Denver Intl

SYDDEN

Sydney Kingsford Smith

Thu 10/22

6:50 pm-11:43 pm

2 stops21h 53m

Denver Intl

Thu 10/29

1:10 pm-6:25 am

1 stop24h 15m

$1,233

SydneyDenver

SYD Sydney Kingsford Smith - DEN Denver Intl

SYDDEN

Sydney Kingsford Smith

Thu 10/22

10:20 am-6:04 pm

2 stops24h 44m

Denver Intl

Thu 10/29

11:39 am-8:35 am

2 stops27h 56m

$1,239

SydneyDenver

SYD Sydney Kingsford Smith - DEN Denver Intl

SYDDEN

Sydney Kingsford Smith

Thu 11/5

11:50 am-8:17 am

2 stops38h 27m

Denver Intl

Mon 11/9

3:35 pm-7:00 am

1 stop21h 25m

$1,403

SydneyDenver

SYD Sydney Kingsford Smith - DEN Denver Intl

SYDDEN

Sydney Kingsford Smith

Fri 2/5

3:50 pm-5:50 pm

3 stops44h 00m

Denver Intl

Tue 2/16

7:58 am-9:15 pm

2 stops43h 17m

$1,724

SydneyDenver

SYD Sydney Kingsford Smith - DEN Denver Intl

SYDDEN

Sydney Kingsford Smith

Fri 1/22

10:25 am-6:14 pm

2 stops25h 49m

Denver Intl

Sat 1/30

6:46 pm-6:25 am

1 stop41h 39m

$1,793

SydneyDenver

SYD Sydney Kingsford Smith - DEN Denver Intl

SYDDEN

Sydney Kingsford Smith

Tue 2/23

3:50 pm-10:59 pm

3 stops49h 09m

Denver Intl

Wed 3/3

12:59 pm-5:55 pm

2 stops34h 56m

$1,879
Quickest round-trip

SydneyDenver

SYD Sydney Kingsford Smith - DEN Denver Intl

SYDDEN

Sydney Kingsford Smith

Sun 1/10

11:20 am-2:21 pm

1 stop21h 01m

Denver Intl

Tue 1/19

11:30 am-6:20 am

2 stops24h 50m

$1,923
Cheapest one-way

SydneyDenver

SYD Sydney Kingsford Smith - DEN Denver Intl

SYDDEN

Sydney Kingsford Smith

Mon 11/30

11:20 am-12:43 pm

1 stop19h 23m

$724

SydneyDenver

SYD Sydney Kingsford Smith - DEN Denver Intl

SYDDEN

Sydney Kingsford Smith

Wed 9/9

9:30 am-3:07 pm

1 stop21h 37m

$730

SydneyDenver

SYD Sydney Kingsford Smith - DEN Denver Intl

SYDDEN

Sydney Kingsford Smith

Thu 10/1

1:15 pm-8:15 am

3 stops35h 00m

$810

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/1

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from Sydney to Denver

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to Denver in September.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*3 stars

*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

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?

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 26 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, January is the cheapest month in which you can book a flight from Sydney to Denver (average of $1,037). Flying from Sydney to Denver in July is currently the most expensive (average of $1,734). 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?

Airfare is below average for this route at the moment.

Sydney to Denver flights typically cost between $1,093 and $1,434 in October.
The cheapest round-trip price found within the last 5 days was $861 on Multiple Airlines (Oct 22-Oct 29).

Reviews of airlines servicing Denver

Get a feel of what it's like to fly with 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.
United Airlines
7.4
Good
10,158 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,158 reviews
United Airlines
7.4
Good
10,158 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Related info for your journey

  • How long is the flight from Sydney to Denver?

    There are many flights that can get you from Sydney to Denver in 24h 44m. Fly via Air Canada or United Airlines to get the fastest option. The distance between Sydney and Denver is about 8348 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Sydney to Denver round-trip?

    Our cheapest airline available from Sydney to Denver is United Airlines. Our recent data shows that you can find tickets from as low as $889 on this airline. You may be able to fly from Sydney to Denver for 32% less than the average price by searching for this airline.

  • 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, January is the cheapest month in which you can book a flight from Sydney to Denver (average of $1,037). Flying from Sydney to Denver in July is currently the most expensive (average of $1,734). 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
Westminster
Lakewood
Black Hawk
Centennial
Broomfield
Golden
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Greeley
Cripple Creek
Winter Park
Limon
Manitou Springs
Frisco
Englewood
Glendale
Evergreen

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Sydney to Denver

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$889Average$1,623FlexibilityNo 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.