$545 Find Cheap Flights from Australia to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Denver departing on 4/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Denver, as well as popular online travel agencies
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Cheap Flights from Australia to Denver

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Australia to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Australia to Denver

Mon, Mar 23 - Tue, Apr 7
Air Canada Logo
10:25 am - 12:37 pmSYD-DEN
19h 12m1 stop
Air Canada Logo
7:10 pm - 7:20 amDEN-SYD
20h 10m1 stop
$810Air Canada
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Mon, Mar 23 - Tue, Apr 7
Air Canada Logo
10:25 am - 12:37 pmSYD-DEN
19h 12m1 stop
Air Canada Logo
9:58 am - 7:20 amDEN-SYD
29h 22m2 stops
$817Air Canada
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Thu, Nov 27 - Thu, Dec 4
Multiple Airlines Logo
9:00 am - 12:23 pmSYD-DEN
21h 23m2 stops
Multiple Airlines Logo
10:06 am - 6:55 amDEN-SYD
26h 49m2 stops
$834Multiple Airlines
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Thu, Nov 27 - Thu, Dec 4
Multiple Airlines Logo
11:15 am - 6:28 pmSYD-DEN
25h 13m1 stop
Multiple Airlines Logo
6:00 am - 7:25 amDEN-SYD
31h 25m1 stop
$874Multiple Airlines
Find Deal
Tue, Jan 27 - Mon, Mar 9
American Airlines Logo
11:20 am - 4:21 pmSYD-DEN
23h 01m2 stops
American Airlines Logo
6:47 pm - 9:00 amDEN-SYD
21h 13m2 stops
$914American Airlines
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Wed, Jan 28 - Sun, Mar 8
American Airlines Logo
11:20 am - 12:18 pmSYD-DEN
18h 58m1 stop
American Airlines Logo
5:01 pm - 6:55 amDEN-SYD
20h 54m1 stop
$920American Airlines
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Mon, Jan 26 - Wed, Mar 4
United Airlines Logo
11:20 am - 12:19 pmSYD-DEN
18h 59m1 stop
United Airlines Logo
7:45 am - 7:00 amDEN-SYD
29h 15m1 stop
$931United Airlines
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Sun, Jan 25 - Wed, Mar 4
United Airlines Logo
12:10 pm - 12:23 pmSYD-DEN
18h 13m1 stop
United Airlines Logo
5:00 am - 7:00 amDEN-SYD
32h 00m1 stop
$980United Airlines
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Sun, Dec 14 - Sun, Dec 21
Qantas Airways Logo
9:40 am - 3:48 pmBNE-DEN
23h 08m2 stops
Qantas Airways Logo
5:05 pm - 5:45 amDEN-BNE
19h 40m1 stop
$1,612Qantas Airways
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Sun, Dec 14 - Sun, Dec 21
Qantas Airways Logo
6:30 am - 6:44 pmCBR-DEN
30h 14m2 stops
Qantas Airways Logo
5:05 pm - 10:35 pmDEN-CBR
35h 30m2 stops
$1,773Qantas Airways
Find Deal

Everything you should know

When to travel
February
Cheapest • 31% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$810
Overall average: $766
Air Canada
Mon 3/23Tue 4/7
SYD - DEN • 1 stop
Cheapest one-way
$545
Typical prices: $444-$505
Multiple Airlines
Wed 4/15
SYD - DEN • 2 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Booking Insights

KAYAK's insights & trends for flights to Denver

Get data-powered insights and trends for flights to Denver to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Denver is February, where tickets cost $921 on average for one-way flights. On the other hand, the most expensive months are December and August, where the average cost of tickets from Australia is $1,500 and $1,414 respectively. For return trips, the best month to travel is February with an average price of $736.

How far in advance should I book a flight to Denver?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 46 days before departure.

Good to know

Low seasonAugust
Cheapest flight$545
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 35% increase in price.
Flight from Sydney to Denver

FAQs - booking Denver flights

  • What are my dining options at Denver International Airport?

    If you’re hungry after your flight, Denver International Airport offers a wide variety of dining options that cater to all price ranges. You can find everything from quick snacks and fast food to gluten-free treats and Asian cuisine. Most of the dining options can be found around Gates A, B and C, but there are also some at Jeppesen Terminal.

  • What can I do on my layover at Denver International Airport?

    If you have a layover at Denver International Airport, there’s plenty to explore in the airport itself. Between Jeppesen Terminal and Gate A, you can find a skywalk with an exhibition that will take you through the history of aviation in Colorado. If you’re an art lover, there are 20 or so permanent pieces of art (sculptures, exhibits and paintings) to discover as you explore the airport. For a dose of nature, head over to Gates C23 and C24, which feature a wide-open view of The Rocky Mountains.

  • What are the accommodation options near Denver International Airport (DEN)?

    Westin Hotel at Denver International Airport offers on-site accommodation with 519 rooms and a commuter train connection to downtown Denver. AmericanInn by Wyndham Denver Airport, Hyatt House Denver Airport, Best Western Plus Denver International Airport, and Holiday Inn Express Airport are all within a 5min drive from the airport, and each offers a shuttle bus service.

  • Can I smoke at Denver International Airport (DEN)?

    While smoking inside the airport is not allowed, there are a number of designated areas where you can smoke outside the Jeppesen Terminal. Smoking areas can be found on levels 4, 5, and 6 on both the east and west sides of the terminal.

  • What lounges are there in Denver International Airport (DEN)?

    The airport hosts American Airlines Admirals Club (Concourse A), United Club (various locations in East Wing and West Wing), Delta Sky Club (Concourse A), and USO Lounge (Concourse A). Economy class Passengers are welcome to buy a day pass or annual membership.

  • Do arriving Australian citizens have to pass through border control?

    Australian passengers who haven't yet cleared Customs will arrive to the A gate at Denver International Airport and will proceed to the Jeppesen Terminal to go through US Customs and Border Protection. Here, you will have your passport and documentation scanned before collecting your baggage. Denver International Airport offers both Mobile Passport Control and Global Entry for expedited processing.

  • Which cities are served by Denver International Airport (DEN)?

    Denver International Airport is convenient to passengers who wish to travel to Aurora (28.97 km), Colorado Springs (136.8 km), and Albuquerque, New Mexico (556.83 km).

  • Where is the train station at Denver International Airport (DEN)?

    The A Line commuter train runs between DEN and downtown Denver every 15min from 03:00-05:00 and 18:00-01:00. Travel time is approximately 37min. Catch the train at Denver Airport Station at the south end of the Jeppesen Terminal.

  • How far is Denver Intl Airport from central Denver?

    The city center of Denver is 18 miles from Denver Intl Airport.

  • What is the name of Denver’s airport?

    There is only 1 airport in Denver, called Denver Intl Airport (DEN). It can also be referred to as Denver or Denver Intl.

  • What is the cheapest day to fly to Denver?

    Based on KAYAK data, the cheapest day to fly to Denver is Monday where tickets can be as cheap as $1,184. On the other hand, the most expensive day to fly is Friday, where prices are $1,584 on average.

  • How does KAYAK find such low prices on flights to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Denver?

    The cheapest time of day to fly to Denver is generally in the morning, when flights cost $1,393 on average. The most expensive time of day to fly to Denver is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,394.

  • How many direct flights to Denver are there each week?

    Each week there are around 7,730 direct flights from within Australia to Denver. The most common day for departures is Monday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Denver

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Denver flight deals.
  • If you need help with mobility assistance while at Denver International Airport (DEN), there are wheelchairs available as well as an electric car service. It’s best to contact your airline at least two days before your flight to ensure easy access. On top of that, there are accessible parking spaces right near the entrance of Jeppesen Terminal.
  • Have some time to spare on a layover and feel like you need to relax after a long flight? If so, Denver International Airport features massage centres at Gate C’s centre core and Gate B’s mezzanine. There, you can get a table and chair massage by a trained professional or relax in the massage chairs.
  • If you need a moment for prayer or reflection, head to the sixth floor of Jeppesen Terminal, where you’ll find an interfaith chapel and prayer hall. On Sundays, at 13:00, they hold a Catholic Mass, and there is also an Islamic place of worship available. The chapel opens from approximately 04:00 to 00:00 (midnight).
  • Need to exchange your Australian dollars for US dollars? You can do so at the centre core of Gates A and B. You can also book an appointment to exchange money in Jeppesen Terminal or use the services at the credit union there. Plenty of ATMs can be found around the airport as well.
  • Denver International Airport (DEN) is one of the main airports in the United States, and it’s an important hub for United Airlines, Frontier Airlines and Southwest Airlines.
  • The airport operates a number of international flight routes, serving destinations in Central America, Asia, Canada, Europe, and Mexico.
  • For passengers traveling with infants, Denver International Airport (DEN) provides three nursing rooms with baby care facilities in each of the concourses. Facilities are located near the female restrooms at the center of gates A, B, and C.
  • If you're arriving at Denver International Airport (DEN) by car, there are different options of parking available, from about $ 3 (A$ 4.40) per hour and about $ 33 (A$ 48) for the daily rates. There is also the option of long-term parking starting from $ 8 (A$ 11) per day.
  • Passengers flying from Denver International Airport (DEN) to a domestic destination can use additional check in and bag check services at the Transit Center and Mt. Elbert and Pikes Peak shuttle. Conveniently drop off your luggage and continue to the airport bag free.
  • Pets travelling from Denver International Airport (DEN) get their own private room with turf flooring and artificial rock, where they can relieve themselves before security. The airport also features Paradise 4 Paws resort, which offers webcams, obedience training, massage therapy, and a pool for furry travellers.

Reviews of the top 3 airlines serving from Australia to Denver

 
See real verified KAYAK customer reviews for airlines flying to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Australia to Denver. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Qantas AirwaysOverall score based on 926 reviews
7.7Boarding
7.5Comfort
8.2Crew
7.0Food
7.2Entertainment
Airline reviews

Basic airline, aircraft and service. AA gets you from point A to B. My flight was delayed by 2 hours too.

6.0 GoodSandipan, Oct 2025SYD - DFW
Read more Qantas Airways reviews

Basic airline, aircraft and service. AA gets you from point A to B. My flight was delayed by 2 hours too.

No internet on flight, which makes log travels really hard.

Not great. The inflight entertainment was all on an app, and I did not want to watch a film on my phone. Also, the range of options of films was limited.

My flight from Dallas to Sydney was cancelled. My entire trip was rerouted to include the following: Hartford to Washington DC Washington DC to JFK JFK to Auckland Auckland to Christchurch I paid for an aisle seat on the flight to Auckland and was asked if I would take a window seat to accommodate a family. The agent at the podium failed to mention that the family had a 3 month old baby and that a bassinet would be used during the 16 hour flight. The only way I could get out of my seat was to crawl under the bassinet of the sleeping baby. I think it is wrong that I was no given the choice to sit in another seat, that the agent knew what she was doing and chose to not properly disclose my seating arrangement. Terrible treatment.

they ran out of fruit for breakfast and so I just had a yogurt instead. other than that the flight was good

by the time they got to our row, they were out of some of the food options. games and movies were great but maybe more game options like tetris or pac man would be great

A few more inches of legroom is all i ask

Great as usual, some delays but well communicated and made up for in the air

Poor! This flight was delayed 14 hours. There was no assistance in helping customers find other routes to their destination, nor any other kind of support. It was a chaotic experience. I'm not likely to fly with AA going forward.

Business class points redemption - good value for points paid, dubious value if out of your own pocket, domestic class business product okay for this length of flight. The flight left and arrived on time, crew were good, aircraft was a bit old and tired, but still miles ahead of their competitors in Virgin and Jetstar.

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Very rough getting into denver. my kid threw up it was so rough.

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Nice comfortable flight from Barcelona back to the states. The premium economy offers the extra room we need for my husband. The food was good and our flight attendants were excellent.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

Flight delayed and missed connection. Rescheduled flight cancelled after 6 hrs wait. Rerouted thru ORD, flight cancelled, overnight stay in ORD. Still in the air on new flight!

We are too tired and frustrated to comment politely at this point

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

The flight was flawless and we even arrived between 20 and 25 minutes early!

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Dillon
Westminster
Lakewood
Broomfield
Englewood
Central City
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Wheat Ridge
Limon
Brighton
Fort Morgan
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Erie

Everything you need to know for your flight to Denver

Information on the airport you'll fly into in Denver

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