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Cheap Flights from Australia to Denver

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Australia to Denver

Thu, Mar 18 - Tue, Mar 30
Qantas Airways Logo
11:15 am - 1:11 pmSYD  Sydney Kingsford Smith-DEN Denver Intl
18h 56m1 stop Los Angeles
Qantas Airways Logo
1:42 pm - 6:30 amDEN  Denver Intl-SYD Sydney Kingsford Smith
23h 48m1 stop Los Angeles
$732Qantas Airways
Thu, Mar 18 - Tue, Mar 30
Multiple Airlines Logo
11:20 am - 1:11 pmSYD  Sydney Kingsford Smith-DEN Denver Intl
18h 51m1 stop Los Angeles
Multiple Airlines Logo
3:45 pm - 6:30 amDEN  Denver Intl-SYD Sydney Kingsford Smith
21h 45m2 stops Phoenix Sky Harbor Intl Los Angeles
$735Multiple Airlines
Thu, Jan 21 - Sun, Jan 31
Delta Logo
10:40 am - 10:36 pmSYD  Sydney Kingsford Smith-DEN Denver Intl
29h 56m2 stops Los Angeles Salt Lake City
Delta Logo
6:53 pm - 8:30 amDEN  Denver Intl-SYD Sydney Kingsford Smith
19h 37m1 stop Los Angeles
$739Delta
Fri, Feb 12 - Tue, Feb 16
Air Canada Logo
7:10 am - 6:13 pmMEL  Melbourne-DEN Denver Intl
29h 03m2 stops Brisbane Vancouver Intl
Air Canada Logo
7:00 pm - 2:35 pmDEN  Denver Intl-MEL Melbourne
25h 35m2 stops Vancouver Intl Sydney Kingsford Smith
$1,219Air Canada
Fri, Feb 12 - Tue, Feb 16
Air Canada Logo
8:10 am - 6:13 pmMEL  Melbourne-DEN Denver Intl
28h 03m2 stops Brisbane Vancouver Intl
Air Canada Logo
8:15 am - 2:35 pmDEN  Denver Intl-MEL Melbourne
36h 20m2 stops Vancouver Intl Sydney Kingsford Smith
$1,220Air Canada
Fri, Feb 12 - Tue, Feb 16
Air Canada Logo
7:10 am - 6:13 pmMEL  Melbourne-DEN Denver Intl
29h 03m2 stops Brisbane Vancouver Intl
Air Canada Logo
7:00 pm - 2:35 pmDEN  Denver Intl-MEL Melbourne
25h 35m2 stops Vancouver Intl Sydney Kingsford Smith
$1,221Air Canada
Wed, Dec 2 - Tue, Dec 8
United Airlines Logo
12:45 pm - 8:17 amMEL  Melbourne-DEN Denver Intl
37h 32m2 stops San Francisco Ontario
United Airlines Logo
4:02 pm - 10:30 amDEN  Denver Intl-MEL Melbourne
24h 28m1 stop San Francisco
$1,272United Airlines
Fri, Apr 2 - Fri, Apr 16
United Airlines Logo
11:55 am - 8:11 amMEL  Melbourne-DEN Denver Intl
37h 16m2 stops San Francisco Ontario
United Airlines Logo
7:45 pm - 7:30 amDEN  Denver Intl-MEL Melbourne
19h 45m1 stop Los Angeles
$1,380United Airlines
Fri, Feb 12 - Tue, Feb 16
American Airlines Logo
10:45 pm - 2:53 pmMEL  Melbourne-DEN Denver Intl
34h 08m2 stops Los Angeles Dallas/Fort Worth
American Airlines Logo
5:05 am - 5:00 amDEN  Denver Intl-MEL Melbourne
29h 55m1 stop Dallas/Fort Worth
$1,387American Airlines
Thu, Nov 12 - Mon, Nov 16
American Airlines Logo
11:45 pm - 7:53 pmPER  Perth-DEN Denver Intl
35h 08m2 stops Sydney Kingsford Smith Dallas/Fort Worth
American Airlines Logo
7:09 am - 2:20 pmDEN  Denver Intl-PER Perth
40h 11m2 stops Los Angeles Sydney Kingsford Smith
$1,889American Airlines
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 flight to Denver?

In the last 5 days, the cheapest flight deal to Denver was found on the route from Sydney, at $732 return. The most popular connection is from Brisbane to Denver and KAYAK users have found round-trip deals for as low as $1,694 in the last 5 days.

What is the cheapest month to fly to Denver?

The cheapest month for flights to Denver is March, where tickets cost $1,044 on average for return flights. On the other hand, the most expensive months are July and September, where the average cost of tickets from Australia is $1,563 and $1,543 respectively. For one-way flights, the best month to travel is March with an average price of $708.

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

To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low season

March

Cheapest flight

$386
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 12% 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.

  • What is the cheapest flight to Denver?

    In the last 5 days, the cheapest flight deal to Denver was found on the route from Sydney, at $732 return. The most popular connection is from Brisbane to Denver and KAYAK users have found round-trip deals for as low as $1,694 in the last 5 days.

  • 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.

  • 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.

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

    Each week there are around 10,496 direct flights from within Australia to Denver. The most common day for departures is Sunday, with 17% 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

 
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.
7.3
United AirlinesOverall score based on 10463 reviews
8.1Crew
7.7Boarding
6.7Food
7.1Entertainment
7.3Comfort
Airline reviews

I need to note that this flight experience was generally fine but the boarding situation was absolutely a mess and there wasn’t any actual priority boarding. I rated the experience poorly because I’m am genuinely so frustrated with the crew on United taking the baggage space in first class. This flight it didn’t happen, but the last few flights (when I ironically don’t get an opportunity to provide feedback) have been spoiled because upon entering the first class cabin as one of the first few seated passengers, the overhead bins are full and ‘crew’’ tags are on the bags of those taking space. I don’t intend to infer some sort of a class or caste system but it’s absolutely ridiculous that the crew takes the overhead storage above and beyond their most loyal and lucrative customers. They should not even have economy space IMO. And I’ve gotten grief when I’ve noted to the crew the ridiculousness of the notion that the crew (who are the last off the plane) should have priority over flyers who pay. I hope you find a way to convey this message to United because it’s happening with increasing frequency and I intend to find a way to expose the specific crew members who are doing this on a flight by flight basis. (And I have a day job)

10.0 ExcellentKristi, Oct 2026
Read more United Airlines reviews

I need to note that this flight experience was generally fine but the boarding situation was absolutely a mess and there wasn’t any actual priority boarding. I rated the experience poorly because I’m am genuinely so frustrated with the crew on United taking the baggage space in first class. This flight it didn’t happen, but the last few flights (when I ironically don’t get an opportunity to provide feedback) have been spoiled because upon entering the first class cabin as one of the first few seated passengers, the overhead bins are full and ‘crew’’ tags are on the bags of those taking space. I don’t intend to infer some sort of a class or caste system but it’s absolutely ridiculous that the crew takes the overhead storage above and beyond their most loyal and lucrative customers. They should not even have economy space IMO. And I’ve gotten grief when I’ve noted to the crew the ridiculousness of the notion that the crew (who are the last off the plane) should have priority over flyers who pay. I hope you find a way to convey this message to United because it’s happening with increasing frequency and I intend to find a way to expose the specific crew members who are doing this on a flight by flight basis. (And I have a day job)

Seats needs to be wirer and food is very poor

Pretty much the exact same comments for this flight, there was crazy weather!

I have been flying united for a long time but now I’m done

1) United economy seats barely recline. 2) I have yet to get United WiFi to work, after numerous flights.

Return flight was perfect. All on time and no hiccups. However, going was another story. I don't blame United for the weather, but I am rather disappointed in its response to my getting stranded in my layover city for the night. United gave me a $20 food voucher. That's it. But besides this policy, the employees were incredibly helpful rerouting me to my final destination in Fort Lauderdale, FL. So overall, 8 out of 10. 10 out of 10 for flight comfort, inflight service and before flight service. 5 out of 10 for layover handling.

Santa Barbara is a super small and easy airport. Breezed through rental car return, breezed through Security, ordered a coffee and muffin and to my gate in less than 30 minutes. Maybe because it was a small airport we got the oldest plane. Hardly any overhead space and absolutely zero internet. Its NFL Sunday man! That hurt.

There were no vegan options for first class. Even though we were promised the satellite internet for free, we received NO wifi at all. Even though we were promised a 20-min early arrival, we ended up over 30 mins late.

Flight attendant incredibly rude. Stuck her finger in my drink and didn’t even have the courtesy to apologize.

food /beverage service was limited to one time which was unexpected for a flight that long. food wasn't very good.

After we boarded, we sat on the tarmac at least a half hour. Not that big a deal really but kept me from giving the survey an excellent.

Staff never asked passengers to bring their seat backs forward during landing. Was hoping to get a little relief from the passenger in front of me (I have long legs that I cannot stow in the overhead). Otherwise the flight was very pleasant.

We were told every hour that the flight was delayed until finally late in the day the flight was cancelled. We had to wait in line over an hour to finally get another flight. Once on the flight the host was ridiculously incoherent in the loudspeaker in flight - very inhospitable. Not happy with our experience.

Another good flight experience with Air Canada. The business section did not feature the full length sleeping arrangement, but this was a shorter trip. The food was excellent. But the flight crew was truly top tier: friendly, cheerful, helpful at all the right times. Air Canada truly outshines all U.S. carriers.

Wifi was great. Kind air crew and comfortable seating. Also liked the entertainment options.

I did not noticed baggage was separate - I had assumed international flights included luggage, so it surprised me I had to pay to check a bag.

In a nutshell, my bag, the one I have to pay for, because now you can’t even bring a carry on, did not make it. I am still waiting for an update. The fact that not only were have to pay for it, but on top of that we are stuck without getting it, it’s ridiculous..

flight landed late almost 1.00hr and we 4 passengers missed our connected flight to indianapolis, we need to get the hotel and taxi for the next day flight to home in indianapolis, cost us $ 300 more

Overall good experience. The flight from Toronto to Denver does not have entertainment - movies to watch.

Staff was friendly helpful also good timing I rate it a 10 out of 10

My feedback from the trip to Columbia to Chicago was meant for Chicago to Denver.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The flight attendant use 1.5 hours to answer my call. My dirty food tray was unattended.

Our bags took a long time to get unloaded once we landed.

Terrible. The flight was delayed two hours due to weather. Then when we got on the plane, the first pilot ended up timing out and we had to wait for a second pilot. Second pile came on board and we tax it out. Had to return back to the gate because of an unruly passenger. Then the copilot timed out. Had to wait for new copilot. Also had to wait for maintenance to check for fuel. Then found out the second pilot timed out and we had to wait for a third pilot. Was ready to go and then needed maintenance again for another issue. In the end, it was 2 o’clock in the morning when they announced that the flight couldn’t go because the third pilot and the second copilot had timed out.

One of the best flights I’ve had. So smooth.

Because I can’t stand very long in one place, I was allowed to reword.

Traveling to a place near Denver?

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

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