SYD - DEN

$612 Find Cheap Flights from Sydney 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 from Sydney to Denver departing on 1/15. 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 in flight searches from Sydney to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Denver, as well as popular online travel agencies
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$863
Overall average: $1,336
Multiple Airlines
Fri 1/30Fri 2/6
SYD - DEN • 2 stops
Cheapest one-way
$622
Typical prices: $605-$1,504
Multiple Airlines
Thu 1/15
SYD - DEN • 2 stops
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 29% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 30% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sydney to Denver (SYD-DEN)

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

Fri, Jan 30 - Fri, Feb 6
Multiple Airlines Logo
2:00 pm - 11:31 pm
SYD
-
DEN
27h 31m2 stops
Multiple Airlines Logo
6:05 am - 10:05 pm
DEN
-
SYD
46h 00m2 stops
$863Multiple Airlines
Fri, Jan 30 - Fri, Feb 6
Multiple Airlines Logo
2:00 pm - 11:31 pm
SYD
-
DEN
27h 31m2 stops
Multiple Airlines Logo
6:05 am - 12:35 pm
DEN
-
SYD
36h 30m2 stops
$875Multiple Airlines
Sun, Feb 1 - Sun, Feb 8
Multiple Airlines Logo
2:00 pm - 11:31 pm
SYD
-
DEN
27h 31m2 stops
Multiple Airlines Logo
6:05 am - 12:35 pm
DEN
-
SYD
36h 30m2 stops
$905Multiple Airlines
Thu, Feb 19 - Fri, Feb 20
Air New Zealand Logo
1:55 pm - 6:23 pm
SYD
-
DEN
22h 28m2 stops
Air New Zealand Logo
4:03 pm - 10:30 am
DEN
-
SYD
24h 27m2 stops
$1,035Air New Zealand
Sat, May 9 - Sun, May 24
Air New Zealand Logo
11:55 am - 7:40 pm
SYD
-
DEN
23h 45m2 stops
Air New Zealand Logo
9:52 am - 8:45 am
DEN
-
SYD
30h 53m2 stops
$1,062Air New Zealand
Mon, Jan 26 - Mon, Feb 9
British Airways Logo
11:20 am - 6:06 pm
SYD
-
DEN
24h 46m2 stops
British Airways Logo
11:43 am - 9:00 am
DEN
-
SYD
27h 17m2 stops
$1,090British Airways
Mon, Jan 26 - Mon, Feb 9
British Airways Logo
11:20 am - 6:06 pm
SYD
-
DEN
24h 46m2 stops
British Airways Logo
12:53 pm - 9:00 am
DEN
-
SYD
26h 07m1 stop
$1,093British Airways
Mon, Jan 26 - Mon, Feb 9
British Airways Logo
11:20 am - 12:18 pm
SYD
-
DEN
18h 58m1 stop
British Airways Logo
7:23 pm - 9:00 am
DEN
-
SYD
19h 37m1 stop
$1,095British Airways
Wed, Mar 4 - Sun, May 24
Qantas Airways Logo
11:20 am - 12:11 pm
SYD
-
DEN
18h 51m1 stop
Qantas Airways Logo
5:36 pm - 7:05 am
DEN
-
SYD
21h 29m1 stop
$1,105Qantas Airways
Wed, Mar 4 - Sun, May 24
Qantas Airways Logo
11:20 am - 12:11 pm
SYD
-
DEN
18h 51m1 stop
Qantas Airways Logo
5:36 pm - 7:05 am
DEN
-
SYD
21h 29m1 stop
$1,106Qantas Airways
Booking Insights

KAYAK's insights & trends for Sydney to Denver flights

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

What’s the cheapest day of the week to fly from Sydney to Denver?

The average price of all round-trip flights from Sydney to Denver clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Denver on a Tuesday and more expensive on a Friday. On your return trip to Sydney, you should consider flying back on a Tuesday, and avoid Thursdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney 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 from Sydney to Denver is February, where tickets cost $733 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $1,457 and $1,336 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sydney 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 on the flight from Sydney to Denver, you should book around 4 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$622
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Sydney to Denver

When to book flights from Sydney to Denver

Are your dates flexible? Find out the best times to travel from Sydney to Denver 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 Sydney to Denver

  • What is the cheapest flight from Sydney to Denver?

    In the last 3 days, the lowest price for a flight from Sydney to Denver was $622 for a one-way ticket and $863 for a round-trip.

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

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

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

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

  • Which airline alliances offer flights from Sydney to Denver?

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

  • Which is the best airline for flights from Sydney to Denver, Qantas Airways or United Airlines?

    The two airlines most popular with KAYAK users for flights from Sydney to Denver are Qantas Airways and United Airlines. With an average price for the route of $787 and an overall rating of 7.5, Qantas Airways is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,528 and an overall rating of 7.4.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Sydney 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 Sydney 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 to Sydney with another airline. Booking your flights between Sydney and DEN 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 Sydney 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 from Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Sydney to Denver

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Denver. 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 Sydney 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 948 reviews
7.7Boarding
7.5Comfort
7.2Entertainment
8.1Crew
7.0Food
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 2025
SYD - 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.

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

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 were upgraded and after just a short delay in attending to a safety check we were on our way. Would definately fly Qantas International on their Dreamliner again.

I tried to check in online but was unable to do so. I stood in line for nearly two hours to check in. American Airlines was understaffed. When I finally got to the kiosk to check in, I was still unable to check in. No AA staff was available to help. Finally one of the airport security agents who was helping passengers became of lack of AA Staff told me: “I think the reason you can’t check in is that you are starting your name with an upper case letter when you write it. Just write it with all lower case letters.” That did allow me to check in. HOW COULD ANYONE POSSIBLY KNOW THAT IF THEY USE AN INITIAL UPPER CASE LETTER TO SPELL THEIR OWN NAME, AA WOULD NOT ALLOW THEM TO CHECK IN?????? Then I had to wait in line over half an hour again to drop off my baggage. Although I arrived at the airport 3 hours early, by the time I got to the gate, they had already started boarding.

United have really come back. Airport and boarding process is clear and good, app and information also very good

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.

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Attendants were pleasant and the flight was smooth and relaxed.

A little late at the start but all worked out well.

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

Information on your arrival and departure airports