Cheap flights from Denver to Sydney from $492
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Sydney departing on 11/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Fly from
Fly to
Route
Depart
Return
DenverSydney
DEN Denver Intl - SYD Sydney Kingsford Smith
DENSYD
Denver Intl
Mon 10/26
1:10 pm-12:35 pm
2 stops30h 25m
Sydney Kingsford Smith
Wed 11/11
6:00 am-11:44 pm
3 stops35h 44m
DenverSydney
DEN Denver Intl - SYD Sydney Kingsford Smith
DENSYD
Denver Intl
Mon 11/2
9:10 am-12:35 pm
2 stops33h 25m
Sydney Kingsford Smith
Mon 11/16
2:00 pm-6:03 pm
2 stops22h 03m
DenverSydney
DEN Denver Intl - SYD Sydney Kingsford Smith
DENSYD
Denver Intl
Wed 2/3
3:55 pm-8:35 am
2 stops22h 40m
Sydney Kingsford Smith
Wed 2/10
9:55 am-5:57 pm
2 stops26h 02m
DenverSydney
DEN Denver Intl - SYD Sydney Kingsford Smith
DENSYD
Denver Intl
Tue 2/23
3:58 pm-12:50 pm
2 stops26h 52m
Sydney Kingsford Smith
Tue 3/16
11:50 am-8:28 pm
2 stops25h 38m
DenverSydney
DEN Denver Intl - SYD Sydney Kingsford Smith
DENSYD
Denver Intl
Tue 2/16
7:09 pm-9:00 am
1 stop19h 51m
Sydney Kingsford Smith
Mon 2/22
5:50 pm-12:58 pm
2 stops37h 08m
DenverSydney
DEN Denver Intl - SYD Sydney Kingsford Smith
DENSYD
Denver Intl
Tue 2/16
7:09 pm-9:00 am
1 stop19h 51m
Sydney Kingsford Smith
Mon 2/22
7:15 pm-12:58 pm
2 stops35h 43m
DenverSydney
DEN Denver Intl - SYD Sydney Kingsford Smith
DENSYD
Denver Intl
Tue 10/27
11:39 am-8:35 am
2 stops27h 56m
Sydney Kingsford Smith
Thu 11/12
11:20 am-6:03 pm
2 stops24h 43m
DenverSydney
DEN Denver Intl - SYD Sydney Kingsford Smith
DENSYD
Denver Intl
Wed 2/3
7:00 pm-9:35 am
1 stop20h 35m
Sydney Kingsford Smith
Wed 2/10
11:20 am-12:38 pm
1 stop19h 18m
DenverSydney
DEN Denver Intl - SYD Sydney Kingsford Smith
DENSYD
Denver Intl
Mon 4/5
12:59 pm-6:50 am
1 stop25h 51m
Sydney Kingsford Smith
Mon 5/3
9:15 am-6:10 pm
1 stop24h 55m
DenverSydney
DEN Denver Intl - SYD Sydney Kingsford Smith
DENSYD
Denver Intl
Sun 4/4
12:59 pm-6:50 am
1 stop25h 51m
Sydney Kingsford Smith
Wed 5/5
9:15 am-11:29 am
1 stop18h 14m
See travel insights to Sydney from
How to get the cheapest flight ticket from Denver to Sydney
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Denver and Sydney?
Prices are currently low for flights on this route.
Typical prices usually range from $1,380 to $1,583.The lowest price recently found on this route was $1,035.
What is the cheapest month to fly to Sydney?
In general, September is the cheapest month to fly from Denver to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,180. If you are unable to visit Sydney during the month of September, then departing from Denver during the month May is also very affordable. Most momondo users find prices during this month for around $1,180.
How far in advance should I book a flight from Denver to Sydney?
You are more likely to see cheaper flights to Sydney from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,372 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Denver for as low as $1,061 on momondo.
Can stopping save me money on Denver to Sydney flights?
You could potentially save up to 9% on your flight if you consider stops on a Denver to Sydney flight.
How have Denver to Sydney flight prices changed over time?
As of October 2026, prices for Denver to Sydney flights are approximately 40% more expensive when compared to flights at the same time last year.
Which airport is the most popular layover for flights between Denver and Sydney?
Los Angeles (LAX) was the most common stop: 91% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Denver to Sydney?
Flights via San Francisco (SFO) offer the lowest average round-trip price of $1,804.
Which layover airport has the shortest travel time from Denver to Sydney?
Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 19h 34m.
Which layover airport has the shortest connection time from Denver to Sydney?
San Francisco (SFO) has the shortest average layover time for this route: 1h 33m.
When to book flights from Denver to Sydney
Cheap Denver to Sydney (DEN to SYD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Denver to Sydney
Frequently asked questions about flying from Denver to Sydney
How far is Denver Intl to Sydney Kingsford Smith by plane?
Denver Intl and Sydney Kingsford Smith are 8325.4 mi apart from one another. A reasonable flight in good conditions will take 18h 39m.
When did momondo last update prices for flights from Denver Intl Airport to Sydney Kingsford Smith Airport?
Prices for flights from Denver Intl Airport to Sydney Kingsford Smith Airport are updated daily.
How many operators does momondo search for flights from Denver Intl Airport to Sydney Kingsford Smith Airport?
As of October 2026, there are 7 operators available to choose from for flights from Denver Intl Airport to Sydney Kingsford Smith Airport.
How old do you have to be to fly from Denver Intl Airport to Sydney Kingsford Smith Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Denver to Sydney?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Denver to Sydney is Qantas Airways (31% of total bookings). The next most popular airlines are Air Canada (22%), United Airlines (17%), and Delta (13%).
Best airlines flying from Denver to Sydney
Compare and see reviews for airlines that fly from Denver to Sydney with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $197 | Free Cancellation | Rating 7.8 8,645 reviews | |||
| PriceFrom $684 | Free Cancellation | Rating 8.0 259 reviews | |||
| PriceFrom $844 | Free Cancellation | Rating 7.0 12,145 reviews | |||
| PriceFrom $847 | Free Cancellation | Rating 7.5 1,104 reviews | |||
| PriceFrom $850 | Free Cancellation | Rating 7.4 10,319 reviews | |||
| PriceFrom $1,093 | Free Cancellation | Rating 7.1 11,744 reviews | |||
| PriceFrom $1,180 | Free Cancellation | Rating 8.0 671 reviews |
Traveling to a place near Sydney?
Book flights to Sydney if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Denver to Sydney?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Sydney from Denver.
Can I find flights from Denver to Sydney with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Sydney from Denver with this policy.
How can momondo help me find flights from Denver to Sydney?
Once you have performed a search for Denver to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Denver to Sydney right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Denver to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.