Cheap flights from Sydney to Denver from $659

In general, November is the cheapest month to fly from Sydney to Denver. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,361. If you aren’t able to travel during the month of November, then book flights to Denver from Sydney during October instead. Flights to Denver in October, while not as cheap as those in November, still average around $1,471.

You are more likely to see cheaper flights to Denver from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $1,607 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Sydney for as low as $1,295 on momondo.

You could potentially save up to 33% on your flight if you consider stops on a Sydney to Denver flight.

As of April 2026, prices for Sydney to Denver flights are approximately 68% more expensive when compared to flights at the same time last year.

Air New Zealand and Delta are the most popular carriers operating from Sydney Kingsford Smith to Denver Intl

Air Canada, Qantas Airways and United Airlines are the top three most popular airlines that fly to Denver from Sydney according to our data. Air Canada is the first choice among our users, with 33% of people opting to fly with this airline when travelling to Denver. Keep in mind that there are 5 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

Los Angeles (LAX) was the most common stop: 50% of momondo users choosing one-stop flights on this route connected there.

Flights via Vancouver (YVR) offer the lowest average return price of $1,655.

Flights connecting via Los Angeles (LAX) have the shortest average one-way travel time: 18h 36m.

Los Angeles (LAX) has the shortest average stopover time for this route: 1h 55m.