Cheap Flights from Denver International to Sydney

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Flight deals from Denver International to Sydney

Looking for a cheap last-minute deal or the best return flight from Denver International to Sydney? Find the lowest prices on one-way and return tickets right here.

Sydney.$1,658 per passenger.Departing Mon, 2 Feb, returning Mon, 16 Feb.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Denver International on Mon, 2 Feb, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Mon, 16 Feb, arriving in Denver International.Price includes taxes and charges.From $1,658, select.

Sydney.$1,658 per passenger.Departing Tue, 19 May, returning Sun, 31 May.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Denver International on Tue, 19 May, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Sun, 31 May, arriving in Denver International.Price includes taxes and charges.From $1,658, select.

Sydney.$1,666 per passenger.Departing Sun, 1 Mar, returning Tue, 10 Mar.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Denver International on Sun, 1 Mar, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Tue, 10 Mar, arriving in Denver International.Price includes taxes and charges.From $1,666, select.

Sydney.$1,666 per passenger.Departing Mon, 2 Feb, returning Tue, 17 Mar.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Denver International on Mon, 2 Feb, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Tue, 17 Mar, arriving in Denver International.Price includes taxes and charges.From $1,666, select.

Sydney.$1,769 per passenger.Departing Tue, 23 Jun, returning Tue, 6 Oct.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Denver International on Tue, 23 Jun, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Tue, 6 Oct, arriving in Denver International.Price includes taxes and charges.From $1,769, select.

Sydney.$1,850 per passenger.Departing Thu, 9 Apr, returning Sun, 19 Apr.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Denver International on Thu, 9 Apr, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Sun, 19 Apr, arriving in Denver International.Price includes taxes and charges.From $1,850, select.

Sydney.$1,880 per passenger.Departing Wed, 17 Jun, returning Wed, 8 Jul.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Denver International on Wed, 17 Jun, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Wed, 8 Jul, arriving in Denver International.Price includes taxes and charges.From $1,880, select.

Sydney.$1,916 per passenger.Departing Sat, 28 Feb, returning Thu, 30 Apr.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Denver International on Sat, 28 Feb, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Thu, 30 Apr, arriving in Denver International.Price includes taxes and charges.From $1,916, select.

1+ stops

Your route at a glance

Cheapest deal$1,658

Cheapest monthMay

Find the cheapest month to fly from Denver International to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver International to Sydney flights are currently cheapest in February.

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Denver International to Sydney: Alternative routes

Compare routes from Denver International to Sydney below. You may find an airport to fly into that's cheaper, faster, or easier than Sydney.

Finding cheap flights from Denver International to Sydney: Frequently asked questions

How much are return flights from Denver International to Sydney?

The best price we found for a return flight from Denver International to Sydney is $1,658. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Denver International to Sydney?

Currently, there are no airlines that fly direct from Denver International to Sydney. But we found flights with one or more stops from $1,658.

How many flights are there a week from Denver International to Sydney?

As of December 2025, there are no flights flying from Denver International to Sydney.

When is the cheapest time to fly from Denver International to Sydney?

The cheapest month to fly from Denver International to Sydney is usually May.

Which upcoming date is cheapest to fly from Denver International Airport to Sydney Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to Sydney Airport on Tuesday, 19 May 2026.

Can I get a direct flight from Denver International Airport to Sydney Airport?

No airlines currently offer direct flights between Denver International Airport and Sydney Airport. Most routes have one or more stops.

How can I find the best flight deal to Sydney?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sydney but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Sydney?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sydney is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Denver International Airport to Sydney with?

Currently, Air Canada offers the cheapest flight tickets to Sydney.

Flying from Denver International Airport (DEN) to Sydney (Kingsford Smith) Airport (SYD): what you need to know

The timezone in Sydney is UTC+11, which is 17 hours ahead of Denver.
Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Be at the airport on time to board your DEN to SYD flight.
You can expect longer queues during popular months like July. Arriving up to four hours in advance for an international flight and two hours for a domestic departure is a good idea.
We make it a cinch to book a flight with a stopover. To see all your options for tickets from Denver International Airport to Sydney (Kingsford Smith) Airport, uncheck 'Direct flights only.' Then, choose a flight offering a stop long enough to visit your chosen city. Worthwhile stopovers between DEN and SYD include:
- Los Angeles International Airport
- San Francisco International Airport
- Dallas/Fort Worth International Airport

How to find the cheapest flights from Denver International Airport (DEN) to Sydney (Kingsford Smith) Airport (SYD)

$1,235 is currently the lowest price for a one-way Denver International Airport to Sydney (Kingsford Smith) Airport flight. Return flights start at $1,658. These prices can change depending on availability and demand.
It's often best to book early if you want to get cheap tickets from DEN to SYD. That's because airlines change prices based on demand, which tends to rise closer to departure.
If you can be flexible with your travel dates, use the 'Whole month' tool. It'll give you the cheapest price in each month when searching for your flight from Denver International Airport to Sydney (Kingsford Smith) Airport.
Finding cheap flights from DEN to SYD couldn't be easier with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch when there's a better deal.
Choose your ideal departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Denver International Airport to Sydney (Kingsford Smith) Airport.

Handy information about Denver International Airport (DEN)

You'll find DEN at 8500 Pena Boulevard.
Denver International Airport maintains a solid on-time performance, so you're less likely to experience disruptions. Departures from DEN touch down on schedule 80.23% of the time.
Central Denver to Denver International Airport is approximately 40 kilometres. Depending on traffic, it'll take about 35 minutes to get there if you're catching a cab, ride-sharing or driving.
Expect a journey time of around 1 hour 30 minutes on public transport.
Get your flight from Denver International Airport to Sydney (Kingsford Smith) Airport off to a stress-free start. Just a short drive from DEN, book a night at Baymont by Wyndham Denver International Airport and be well-rested for the journey ahead.

Arriving at Sydney (Kingsford Smith) Airport (SYD)

The last thing you want is a lengthy journey to your hotel if you're arriving on a late Denver International Airport to Sydney (Kingsford Smith) Airport flight. Reserve one of these accommodation options near SYD instead:
Begin your adventure by picking up a Sydney (Kingsford Smith) Airport rental car. Grab your wheels from simba car hire, Bargain Car Rentals or Yes Drive to explore Sydney and beyond.
To lock in the lowest price, book your vehicle from Sydney (Kingsford Smith) Airport around two weeks before you set off.

Getting from Sydney (Kingsford Smith) Airport (SYD) to central Sydney

From Sydney (Kingsford Smith) Airport, Sydney is approximately 18 kilometres away. It takes around 20 minutes to drive to the centre.
Travelling by public transport takes about 25 minutes.

When to fly to Sydney (Kingsford Smith) Airport (SYD)

It's time to pick your travel dates for your flight from Denver International Airport to Sydney (Kingsford Smith) Airport. April is the most popular month to head to Sydney. If you're after a more relaxed vibe, go in April.
Lock in your flight from Denver International Airport to Sydney (Kingsford Smith) Airport for January if you want to visit Sydney during its warmest month. You can expect temperatures of between 17ºC and 32ºC.
If you'd rather travel in cooler conditions, look for a cheap ticket from DEN to SYD in July. Temperatures average between 5ºC and 19ºC then.

Explore more of Australia

Canberra is just one of the many cities in Australia waiting to be explored once you've seen the sights of Sydney. Around 241 kilometres away to the south-west, its best attractions include Australian War Memorial, National Gallery of Australia and Parliament House.
Around 121 kilometres north-east of Sydney, Newcastle is another essential stop in Australia. Experience the best of this destination with a visit to Newcastle Beach, Nobbys Beach and Merewether Beach.