DEN - SYD

$465 Find Cheap Flights from Denver to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Sydney departing on 6/6. 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 Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Sydney.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Sydney.
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Everything you should know

Cheapest round-trip
$917
Typical prices: $1,545-$1,149
Multiple Airlines
Thu 5/14Mon 5/18
DEN - SYD • 3 stops
Cheapest one-way
$468
Typical prices: $800-$961
Multiple Airlines
Sat 6/6
DEN - SYD • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Denver and Sydney. You'll need at least 1 connection.
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Top layover airports
Cheapest • Avg $1,137 (round-trip)
Shortest trip • 19h 45m (one-way)
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When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 23% compared to booking last minute.
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When to travel
Cheapest • 13% price drop
Most popular
Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Sydney (DEN-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Sydney 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 Denver to Sydney

Thu, May 14 - Mon, May 18
Multiple Airlines Logo
6:00 am - 11:50 am
DEN
-
SYD
37h 50m
3 stops
Multiple Airlines Logo
6:00 am - 12:38 am
SYD
-
DEN
34h 38m
2 stops
$917Multiple Airlines
Fri, Jun 5 - Thu, Jun 11
Multiple Airlines Logo
2:00 pm - 11:50 am
DEN
-
SYD
29h 50m
2 stops
Multiple Airlines Logo
6:00 am - 12:40 am
SYD
-
DEN
34h 40m
2 stops
$932Multiple Airlines
Thu, May 14 - Mon, May 18
Multiple Airlines Logo
8:41 am - 11:50 am
DEN
-
SYD
35h 09m
2 stops
Multiple Airlines Logo
6:00 am - 12:38 am
SYD
-
DEN
34h 38m
2 stops
$941Multiple Airlines
Fri, Jun 5 - Thu, Jun 11
Multiple Airlines Logo
2:00 pm - 11:50 am
DEN
-
SYD
29h 50m
2 stops
Multiple Airlines Logo
1:15 pm - 3:58 am
SYD
-
DEN
30h 43m
3 stops
$991Multiple Airlines
Wed, May 13 - Sat, May 16
Multiple Airlines Logo
7:20 am - 11:50 am
DEN
-
SYD
36h 30m
2 stops
Multiple Airlines Logo
6:00 am - 8:08 am
SYD
-
DEN
42h 08m
3 stops
$1,002Multiple Airlines
Sun, Aug 23 - Thu, Sep 3
Multiple Airlines Logo
7:00 am - 11:50 am
DEN
-
SYD
36h 50m
2 stops
Multiple Airlines Logo
1:15 pm - 12:40 am
SYD
-
DEN
27h 25m
2 stops
$1,013Multiple Airlines
Wed, May 13 - Sat, May 16
Multiple Airlines Logo
9:52 am - 11:50 am
DEN
-
SYD
33h 58m
3 stops
Multiple Airlines Logo
6:00 am - 8:08 am
SYD
-
DEN
42h 08m
3 stops
$1,018Multiple Airlines
Fri, Aug 14 - Thu, Aug 27
Multiple Airlines Logo
7:00 am - 11:50 am
DEN
-
SYD
36h 50m
2 stops
Multiple Airlines Logo
1:15 pm - 12:40 am
SYD
-
DEN
27h 25m
2 stops
$1,019Multiple Airlines
Tue, Aug 18 - Mon, Aug 31
Multiple Airlines Logo
10:39 pm - 7:30 am
DEN
-
SYD
40h 51m
1 stop
Multiple Airlines Logo
1:15 pm - 12:40 am
SYD
-
DEN
27h 25m
2 stops
$1,130Multiple Airlines
Thu, Jul 2 - Sun, Jul 26
Multiple Airlines Logo
12:32 pm - 11:50 am
DEN
-
SYD
31h 18m
2 stops
Multiple Airlines Logo
2:10 pm - 12:36 am
SYD
-
DEN
26h 26m
2 stops
$1,151Multiple Airlines
Booking Insights

KAYAK's insights & trends for Denver to Sydney flights

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

How much is a round-trip flight from Denver to Sydney?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Sydney departing in May.

What is the cheapest month to fly from Denver to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Sydney, 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 from Denver to Sydney is April, where tickets cost $1,183 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $1,746 and $1,504 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Sydney, 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 on the flight from Denver to Sydney, you should book around 4 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$468
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 28% increase in price.
Flight from Denver to Sydney

When to book flights from Denver to Sydney

Are your dates flexible? Find out the best times to travel from Denver to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Sydney

  • Where can I sleep at Sydney Airport?

    Book your stay at Mantra Hotel Sydney Airport, Rydges Sydney Airport, or Ibis Budget Sydney Airport. All three establishments are at the airport, with the first being a short walk from terminals 1 and 2. They offer both day rooms and overnight stays. Rydges Sydney Airport is in the international terminal and offers shuttle services from the domestic terminal. Ibis Budget Sydney Airport is located in the domestic terminal and has a paid shuttle service.

  • What family-friendly facilities are available at Sydney Airport?

    SYD has provided baby care facilities throughout the airport. In terminal 1, there's a nursing lounge with a sink and microwave around the baggage claim area. In terminal 2, the Parents' Rooms can be found both before and after security. If you're traveling with slightly older kids, take them to the children's play areas at SYD. The play areas are around gates 50, 10, and 53. The airport also has a kids' cinema, a kid-friendly place where kids can sit and watch TV shows. The children's cinema is near Gate 33.

  • How do I get to downtown Sydney from Sydney Airport?

    The train is the most efficient way of getting downtown from SYD. You can take the train from both terminals and tickets are available at the train stations. The public bus also serves the airport, Sydney Bus route 400 connects SYD to downtown Sydney. The bus has stops on the arrivals level of terminals 1 and 3. Shuttles are another great option - Redy2Go and Mozio offer door-to-door shuttle services from SYD to downtown and the surrounding areas. You can request these services from the SYD Travel Desk in the arrivals halls. Sheltered taxi lines are available in each terminal and car rental companies have counters in the arrivals halls of both terminals.

  • Is Denver International Airport suitable for disabled passengers?

    DEN offers wheelchair assistance to passengers with limited mobility visiting the airport. This service must be booked through your airline. There are also reserved parking spots, fast-track services, and accessible restrooms available. Barrier-free access is provided in the form of elevators and ramps. Low-vision passengers will find Aira services and deaf passengers have visual paging services and TDD telephones.

  • What is the cheapest flight from Denver to Sydney?

    In the last 3 days, the lowest price for a flight from Denver to Sydney was $468 for a one-way ticket and $917 for a round-trip.

  • Do I need a passport to fly between Denver and Sydney?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Denver and on arrival in Sydney.

  • Which airports will I be using when flying from Denver to Sydney?

    Denver airport is called Denver Intl and the only airport in Sydney is Sydney Kingsford Smith.

  • Which aircraft models fly most regularly from Denver to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Sydney?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Denver and Sydney, with SkyTeam being the most commonly used for this route.

  • What is the most popular layover when flying to Sydney from Denver?

    Los Angeles is the most popular layover city among KAYAK users traveling from Denver to Sydney.

  • Which is the best airline for flights from Denver to Sydney, Fiji Airways or Air New Zealand?

    The two airlines most popular with KAYAK users for flights from Denver to Sydney are Fiji Airways and Air New Zealand. With an average price for the route of $1,114 and an overall rating of 8.1, Fiji Airways is the most popular choice. Air New Zealand is also a great choice for the route, with an average price of $1,282 and an overall rating of 8.0.

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

    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 from Denver to Sydney.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from 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 from Denver to Sydney?

    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 Sydney with an airline and back to Denver with another airline. Booking your flights between Denver and SYD can sometimes prove cheaper using this method.

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

    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 Sydney from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Sydney

  • Denver International Airport (DEN) has a hub and spoke layout with one main terminal and three concourses. You can get around the airport using the walkways or the underground train that runs every 10 minutes.
  • Unwind with a relaxing massage, pedicure, or manicure before your flight at XpresSpa at DEN. XpresSpa offers express spa services taking less than 30 minutes at DEN, and they are available inside security at gate C30 and in the center core.
  • There are no non-stop flights from Denver to Sydney. If you're on a single-layover flight on this route, the most common layover cities are San Francisco and Los Angeles.
  • Around 3,868 kg of carbon is emitted on flights from Denver to Sydney. Fly more sustainably with Delta Airlines - they offer a flight emitting 40% less carbon per passenger on this route.
  • If you need banking services as soon as you land at Sydney Airport (SYD), ANZ Bank runs a full-service branch at the airport that offers banking and currency exchange services. The bank is in the international terminal on level 2 near check-in counter J.

Reviews of the top 5 airlines serving from Denver to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Denver to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Sydney? 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.
7.9
DeltaOverall score based on 8465 reviews
7.2Food
7.8Entertainment
8.1Boarding
8.5Crew
7.9Comfort
Airline reviews

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

6.0 GoodSilvestre, Apr 2026
MCO - GRU
Read more Delta reviews

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

PREMIUM ECONOMY - excellent !Brilliant new plane. Excellent tv catalogue. Good food. Good communication and service from all friend Australian crew. Good communication from captain. Best travel experience in years.

Very good overall. However, your choices of free movies was limited and there was no music Channel???

I couldn't hear all of the announcements. It was nice when they put them on the screen.

This was the worst flight I’ve been on. Getting on the plane where is was 30 degrees outside was hotter on board cabin must’ve been 33 degrees. This is a health hazard. They cannot be doing this to save on fuel. People could die from this!!. Fans and a/c was, off entertainment was off. Poor excuse given. Crew made the excuse that the system didn’t have enough power. They basically were operating on one engine to save on jet fuel till 3 hours later on cruising altitude and they then started the second engine. And finally the cabin was cooled. On a 7hour red eye flight this made it so uncomfortable and impossible to sleep.

My experience was great overall. Tanya was particularly friendly and helpful the entire trip. I was very pleased with her customer service skills. The plane was an older aircraft but the entire way was comfortable with barely any turbulence at all. Qantas should speed up its fleet renovation. Totally recommend using this airline.

Qantas is always subpar beyond comfy chairs for a domestic flight

I liked boarding the plane. The staff were rude, the food was appalling and the chairs the most uncomfortable I have ever experienced

an hour late, then had to disembark on back stairs and take 4 flights up to get to main airport. No warning, and difficulty for those with canes and poor knees.

Well my expórtenle with Qantas it wasn’t that good KLM from Bs Aires was delay Santiago Chile Qantas QF 028 was still in the airport but the crew didn’t opened the door for me soo I lost my fly And I stuck in the airport 13 hrs waiting for next fly by Latam Arline My question is can I have my money back for business class

It was ok, the additional baggage charges were a bit excessive given winter is a time for skiing. To have to pay $600 extra for skis was tantamount to robbery. Airlines should consider sporting goods as baggage. Likewise, they should consider increasing the number of bags allowed on international flights to known ski destinations.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Putting people that close to the bathroom, where you have to look into the bathroom as people are exiting and entering was not great and the smell was also not great. I know the airlines are desperate for more chairs, but that seat is a crime.

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

one staffer was frustrated (it happen); the flight was late and the pilot mentioned they'll make amend but the snacks were the same, other than that the aircraft was clean and everything went smooth, no complaints

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

No seat back entertainment. And app had a hard time getting entertainment loaded.

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Terrible. Our first time back on United for 10 years, the seats in Polaris class are small and uncomfortable. They have squished too many people in to get more $$$. The staff are not friendly and not wanting to accommodate. I asked for two salads rather than a main meal and was advised no we wont do that. Then asked what I would like for breakfast and given something else anyway. I will not be flying United International anytime soon.

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

On time departure and early arrival. Flight attendant very nice.

shittiest airline in the hemisphere. To improve - start thinking you're flying people, not cattle

Easy boarding, inflight refreshments came on time and comfortable seat

It was good that our flight left early. It was a nice smooth flight and landing.

All good……but luggage didn’t make it on the airplane. Had to wait 3 days. Was a bummer.

Small suitcase used for carryon the last time was refused by boarding crew this time. Appears to be at the discretion and mood of the person on the day. Flight was only half booked, there would have been no problem with space.

It was a problem because there was a delay where we sat before taking off from newark,then when landed in Toronto we sat on tarmac and they wouldn't let us out for a long period of time. When we finally were released to the airport in Toronto the attendant scanned our boarding pass that we were here for our connection to Brazil. We ran all the way to the gate and they said at the gate the door is shut so we can not let you on the plane. We explained that we were checked in by the attendant when we arrived at Toronto airport to go to Brazil and they should not have shut the door. We were ignored at the gate

Flight home was delayed multiple times, did not get home until 2am

the check-in lady at ORD was extremely rude and unprofessional. very disappointed as it was supposed to be a celebration for my wife's birthday and it really put a damper on things. if i wanted to be treated like trash, i would have flown Economy! (as opposed to business class)

My original flight was cancelled and then rebooked four hours later on a recovery flight, but I was checked in as stanby and had no seats so as a family of four we were concerned about not being seated altogether. Our flight then got delayed by another 1.5 hours and when seats were assigned at the gate, three of the four of us were together and we could get my wife closer, they offered no assistance.

My original booking was through AirCanada and unbeknownst to me they altered flights and providers which caused a complete disaster for checking in for my flights and seat assignments. The original gate agent in Auckland had me basically doing gymnastics to get onto the future flights and have my luggage follow me.

Everything you need to know for your flight from Denver to Sydney

Information on your arrival and departure airports