$509 Find Cheap Flights from Sydney to Colorado

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 Colorado departing on 12/8. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Colorado, 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 Colorado, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Sydney to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denver2 stops$757
Aspen
Aspen1 stop$958
Denver
Denver2 stops$757
Aspen
Aspen1 stop$958

Book Cheap Sydney to Colorado Plane Tickets

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

Fri, Oct 31 - Fri, Nov 7
Multiple Airlines Logo
2:15 pm - 12:57 amSYD-DEN
27h 42m2 stops
Multiple Airlines Logo
6:30 am - 12:30 pmDEN-SYD
36h 00m2 stops
$757Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Multiple Airlines Logo
5:45 pm - 10:18 amSYD-DEN
33h 33m1 stop
Multiple Airlines Logo
11:45 am - 7:25 amDEN-SYD
25h 40m1 stop
$803Multiple Airlines
Find Deal
Thu, Feb 5 - Mon, Feb 23
Air Canada Logo
11:20 am - 12:37 pmSYD-DEN
19h 17m1 stop
Air Canada Logo
8:45 am - 9:35 amDEN-SYD
30h 50m1 stop
$853Air Canada
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Thu, Feb 5 - Mon, Feb 23
Air Canada Logo
11:20 am - 6:10 pmSYD-DEN
48h 50m2 stops
Air Canada Logo
7:05 pm - 9:35 amDEN-SYD
20h 30m1 stop
$859Air Canada
Find Deal
Tue, Feb 17 - Tue, Mar 3
American Airlines Logo
11:15 am - 3:07 pmSYD-DEN
21h 52m2 stops
American Airlines Logo
12:21 pm - 9:00 amDEN-SYD
26h 39m2 stops
$920American Airlines
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Mon, Feb 16 - Sun, Mar 1
American Airlines Logo
11:15 am - 11:38 pmSYD-DEN
30h 23m2 stops
American Airlines Logo
12:56 pm - 6:55 amDEN-SYD
23h 59m1 stop
$927American Airlines
Find Deal
Fri, Feb 6 - Tue, Feb 24
Qantas Airways Logo
11:15 am - 12:29 pmSYD-DEN
19h 14m1 stop
Qantas Airways Logo
1:00 pm - 9:00 amDEN-SYD
26h 00m1 stop
$932Qantas Airways
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Sat, Feb 7 - Wed, Feb 25
Qantas Airways Logo
5:45 pm - 7:15 pmSYD-DEN
19h 30m1 stop
Qantas Airways Logo
1:00 pm - 7:25 amDEN-SYD
24h 25m1 stop
$1,065Qantas Airways
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Fri, Sep 26 - Tue, Sep 30
United Airlines Logo
10:20 am - 8:25 amSYD-DEN
38h 05m2 stops
United Airlines Logo
3:46 pm - 7:00 amDEN-SYD
23h 14m1 stop
$1,390United Airlines
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Wed, Dec 24 - Wed, Jan 7
United Airlines Logo
2:00 pm - 6:19 pmSYD-DEN
22h 19m2 stops
United Airlines Logo
9:05 pm - 6:20 amDEN-SYD
39h 15m1 stop
$1,424United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Sydney to Colorado flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Colorado, 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 Colorado is February, when tickets cost $733 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of round-trip tickets is $1,603 and $1,338 respectively.

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

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

Your flight ticket price will generally be cheaper if you fly to Colorado 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.

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

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 Colorado, 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 Colorado, you should book around 4 weeks before departure, which saves you about 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$509
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 49% increase in price.
Flight from Sydney to Aspen

FAQs - booking Colorado flights

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

    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 Colorado.

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

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

    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 from Sydney to Colorado 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 from Sydney to Colorado?

    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 from Sydney to Colorado 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 Colorado?

    The cheapest time of day to fly to Colorado is generally in the morning, when round-trip flights cost $1,393 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Colorado is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,394.

Reviews of the top 3 airlines serving from Sydney to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Colorado. 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 Colorado? 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 907 reviews
7.2Entertainment
8.2Crew
7.7Boarding
7.0Food
7.5Comfort
Airline reviews

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.

2.0 MediocreAnonymous, Aug 2025BDL - DFW
Read more Qantas Airways reviews

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.

Airline running better than post Covid, proper boarding process now implemented, some aircraft feeling a bit old and tired, crew fine, online experience better.

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.

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.

I found the staff to not be very attentive at all. When paying for Business Class you expect a certain type of service and that was not found. They were almost rude even

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.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

The delayed flight was awful and moving the departure gate twice was annoying

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

The flight was on time and crew were nice, seats were tight and there was entertainment available

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

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

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