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Cheap Flights from Denver to Sydney

Compare Denver to Sydney flight deals

Find the cheapest month or even day of the year to fly to Sydney

Book the best Sydney fare with no extra fees

Flight deals from Denver to Sydney

Looking for a cheap last-minute deal or the best return flight from Denver to Sydney? Find the lowest prices on one-way and return tickets right here.
Sydney.R 7,043 per passenger.Departing Tue, 17 Mar.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Tue, 17 Mar, arriving in Sydney.Price includes taxes and charges.From R 7,043, select.
Sydney.R 7,257 per passenger.Departing Tue, 5 May.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Tue, 5 May, arriving in Sydney.Price includes taxes and charges.From R 7,257, select.
Sydney.R 7,304 per passenger.Departing Sun, 12 Apr.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Sun, 12 Apr, arriving in Sydney.Price includes taxes and charges.From R 7,304, select.
Sydney.R 7,752 per passenger.Departing Sat, 14 Feb.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Sat, 14 Feb, arriving in Sydney.Price includes taxes and charges.From R 7,752, select.
Sydney.R 9,075 per passenger.Departing Sat, 1 Aug.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Denver International on Sat, 1 Aug, arriving in Sydney.Price includes taxes and charges.From R 9,075, select.
Sydney.R 9,144 per passenger.Departing Sat, 5 Sep.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Denver International on Sat, 5 Sep, arriving in Sydney.Price includes taxes and charges.From R 9,144, select.
Sydney.R 9,582 per passenger.Departing Thu, 19 Nov.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Denver International on Thu, 19 Nov, arriving in Sydney.Price includes taxes and charges.From R 9,582, select.
Sydney.R 9,837 per passenger.Departing Tue, 2 Jun.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Denver International on Tue, 2 Jun, arriving in Sydney.Price includes taxes and charges.From R 9,837, select.

Find the cheapest month to fly from Denver to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver to Sydney flights are currently cheapest in March.
Feb
from R 7,752
Mar
from R 7,043
Apr
from R 7,304
May
from R 7,257
Jun
from R 9,837
Jul
from R 11,697
Aug
from R 9,075
Sep
from R 9,144
Oct
Find prices
Nov
from R 9,582
Dec
from R 11,573
Jan
from R 12,771

Denver to Sydney: Alternative routes

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

Sydney

9km from central Sydney
ClosestCheapest
from R 7,043
Search flights

Wollongong

87km from central Sydney
Search flights

Denver to Sydney: Flight information

The things to know before you go.
Cheapest flight foundR 7,043
Cheapest month to flyMarch

Finding cheap flights from Denver to Sydney: Frequently asked questions

The best price we found for a return flight from Denver to Sydney is R 13,311. 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.
Currently, there are no airlines that fly direct from Denver to Sydney. But we found flights with one stop from R 13,311.
As of February 2026, there are no flights flying from Denver to Sydney.
The cheapest month to fly from Denver to Sydney is usually March.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Denver to Sydney Airport on Tuesday, 17 March 2026.
No airlines currently offer direct flights between Denver and Sydney Airport. Most routes have one or more stops.
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.
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.
The cheapest airline that flies to Sydney is Frontier Airlines .

Flying from Denver to Sydney (Kingsford Smith) Airport (SYD): What you need to know

  • Denver International Airport (DEN) is Denver's main airport. Check out your options for booking a flight from Denver to Sydney (Kingsford Smith) Airport (SYD) jetting off from here.

  • Sydney is 17 hours ahead of Denver. Sydney (Kingsford Smith) Airport is located in Sydney, which follows the UTC+11 timezone.

  • Your flight from Denver to SYD won't wait if you're running late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • With more people on the move during peak seasons, it's wise to get to your terminal even earlier. Two hours for domestic flights and up to four for international journeys will allow for extra wait times.

Airports in Denver

Denver International Airport (DEN)

  • A stopover is the ideal opportunity to break up your trip and possibly even explore a different city. When searching for cheap flights from Denver to SYD departing from Denver International Airport (DEN), uncheck the 'Direct flights only' box to find all potential stops. Some popular options include:

    • Dallas/Fort Worth International Airport (DFW)

    • Los Angeles International Airport (LAX)

    • San Francisco International Airport (SFO)

  • The journey from central Denver to DEN takes around 1 hour 30 minutes by public transport. If you drive, ride-share or get a cab, you'll cover the 40 kilometres in 35 minutes or so, depending on traffic.

  • Need a convenient place to stay before your flight from Denver to Sydney (Kingsford Smith) Airport? Check out Baymont by Wyndham Denver International Airport. Get a good night's sleep here before heading to Denver International Airport.

  • Denver International Airport has an excellent on-time record, so you're less likely to experience disruptions. Departures from DEN make it to their destination as scheduled 80.23% of the time.

  • DEN is located at 8500 Pena Boulevard.

About Sydney (Kingsford Smith) Airport (SYD)

  • The last thing you need is a long journey to your hotel if you're arriving on a late flight from Denver to Sydney (Kingsford Smith) Airport. Get comfy at one of these accommodation options near SYD instead:

  • Go wherever you want, whenever you want with a Sydney (Kingsford Smith) Airport rental car. Pick up a set of wheels from simba car hire, Bargain Car Rentals or Yes Drive and see more of Sydney and beyond.

  • To lock in the lowest price, reserve your vehicle around two weeks in advance of your Denver to Sydney (Kingsford Smith) Airport flight.

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

  • Sydney (Kingsford Smith) Airport is around 18 kilometres from central Sydney. It takes around 20 minutes or so to drive to the city.

  • Travelling by public transport takes around 25 minutes.

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

  • The cheapest price we've found for a one-way ticket from Denver to Sydney (Kingsford Smith) Airport is R 7,043. For a return flight on this route, the best price is R 13,311. Depending on when you book and the availability, these fares may change.

  • To pick up cheap flights from Denver to SYD, book early. Airlines generally offer their most competitively priced fares when flights first go on sale.

  • Cheap Denver to Sydney (Kingsford Smith) Airport tickets are easier to find if you're not locked into specific dates. Use the 'Whole month' search function to compare fares across each month and then choose the cheapest day.

  • Never miss a deal on plane tickets from Denver to SYD by creating a Price Alert. We'll send you an email or notification through the app when a lower fare pops up.

  • Save on your flight from Denver to Sydney (Kingsford Smith) Airport by using filters. Choose your ideal duration, departure time and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Denver to Sydney (Kingsford Smith) Airport (SYD)

  • Think about the kind of holiday you want when deciding the best time to fly. April is the quietest month to visit Sydney. July is when most people book flights from Denver to Sydney (Kingsford Smith) Airport (SYD), which may be perfect if you're chasing more excitement.

  • The warmest month in Sydney is January, with temperatures ranging between 17ºC (63ºF) and 32ºC (90ºF). Lock in your Denver to SYD plane ticket then if that's your definition of good weather.

  • Search for cheap tickets from Denver to Sydney (Kingsford Smith) Airport in July if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 5ºC (41ºF) and 19ºC (66ºF).

More about Sydney

  • Once you've booked your flight from Denver to Sydney (Kingsford Smith) Airport, find a hotel that puts you in a great location. Make one of these options your base for exploring Sydney:

  • There are loads of things to do in Sydney when you're ready to sightsee. Head straight for Sydney Harbour followed by Sydney Harbour Bridge and Sydney Harbour.

Explore more of Australia

  • Canberra is just one of the many places in Australia waiting to be explored after you've seen Sydney. Around 241 kilometres away to the south-west, top sights here include Australian War Memorial, National Gallery of Australia and National Portrait Gallery.

  • If there's time to check out another side of Australia, head for Newcastle, about 129 kilometres north-east of Sydney. Merewether Beach, Bathers Way Coastal Walk and Nobbys Beach are key highlights.

Plan the rest of your trip from Denver to Sydney

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.