$889+ Cheap flights to Colorado

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
— DEN
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to Colorado in 2025

Enter your travel dates to find the best prices.

Cheapest flights to Colorado
Explore the most affordable flight options available to Colorado. Find the lowest fares based on data from user searches, with prices last updated on 5 December 2025.

Sun 14/1211:20SYD - DEN
1 stop21h 07mUnited Airlines
Sun 28/1215:55DEN - SYD
1 stop23h 10mUnited Airlines
Deal found 4/12$1,754
Fri 19/1214:00SYD - DEN
2 stops20h 37mUnited Airlines
Fri 2/105:00DEN - SYD
1 stop32h 00mUnited Airlines
Deal found 4/12$1,824
Sat 20/1206:30SYD - DEN
2 stops35h 54mMultiple Airlines
Fri 2/106:00DEN - SYD
2 stops40h 30mMultiple Airlines
Deal found 4/12$2,317
Wed 17/1211:20SYD - DEN
2 stops23h 16mUnited Airlines
Sat 3/121:05DEN - SYD
1 stop39h 55mUnited Airlines
Deal found 4/12$2,361
Mon 8/1212:10SYD - DEN
2 stops38h 10mUnited Airlines
Wed 10/1207:45DEN - SYD
1 stop29h 15mUnited Airlines
Deal found 4/12$2,367
Mon 8/1211:20SYD - DEN
1 stop18h 46mQantas Airways
Wed 10/1218:10DEN - SYD
1 stop20h 50mQantas Airways
Deal found 4/12$2,383
Mon 8/1211:20SYD - DEN
2 stops23h 00mAmerican Airlines
Wed 10/1214:19DEN - SYD
2 stops24h 41mAmerican Airlines
Deal found 4/12$2,397
Wed 24/1214:00SYD - COS
2 stops20h 28mUnited Airlines
Tue 13/113:25COS - SYD
2 stops25h 40mUnited Airlines
Deal found 3/12$2,403
Fri 19/1211:50SYD - DEN
1 stop20h 39mUnited Airlines
Sat 3/107:47DEN - SYD
1 stop28h 33mUnited Airlines
Deal found 2/12$2,453
Sat 20/1211:50SYD - DEN
1 stop24h 29mUnited Airlines
Sat 3/118:00DEN - SYD
1 stop43h 00mUnited Airlines
Deal found 3/12$2,464
Tue 16/1211:20SYD - DEN
2 stops29h 09mMultiple Airlines
Tue 6/121:45DEN - SYD
2 stops41h 15mMultiple Airlines
Deal found 3/12$2,483
Tue 23/1210:40SYD - COS
2 stops29h 45mDelta
Tue 13/112:00COS - SYD
2 stops26h 30mDelta
Deal found 3/12$3,034

Find flights to Colorado

Browse one-way and return flights deals to Colorado on Cheapflights. Flight deals are based on user searches and were last updated on 5 December 2025
Explore Colorado

Find flight deals to Colorado

Find the latest flights to Colorado in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 5 December 2025.

Return from

$1,307

One-way from

$889

Popular in

December

Cheapest in

February

Average price

$2,285
Air Canada
  • Air Canada
  • 18/3-23/3
  • 3 total stops
  • 42h 07m total
  • Sydney to Denver
28/1
  • 28/1
  • 3 total stops
  • 41h 25m total
  • Sydney to Colorado
Highest demand for flights based on searches. 17% potential increase in price ($343 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($64 potential savings vs. average return price).
Average for return flights in December 2025

Cheapflights Fare Finder

 
Locate flights to Colorado that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 5 December 2025.
Use the filters below to find and compare flights to Colorado that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneyColorado Springs

SYD - COS

SYDCOS

Sydney Kingsford Smith

Thu 19/3

11:20-09:56

2 stops39h 36m

Colorado Springs

Mon 23/3

12:30-06:55

2 stops49h 25m

$1,382

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 18/1

14:05-18:13

1 stop22h 08m

Denver Intl

Sun 25/1

19:23-09:00

1 stop19h 37m

$1,624

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 26/4

11:55-22:30

2 stops26h 35m

Denver Intl

Mon 11/5

17:30-18:10

2 stops32h 40m

$1,748

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 14/12

11:20-14:27

1 stop21h 07m

Denver Intl

Sun 28/12

15:55-09:05

1 stop23h 10m

$1,754

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Mon 27/4

09:20-12:38

1 stop19h 18m

Denver Intl

Tue 12/5

15:58-07:20

2 stops23h 22m

$1,818

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Fri 19/12

11:20-12:18

1 stop18h 58m

Denver Intl

Fri 2/1

05:00-07:00

1 stop32h 00m

$1,824

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 18/1

14:00-10:12

2 stops38h 12m

Denver Intl

Mon 26/1

06:05-07:25

1 stop31h 20m

$1,913

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 26/4

09:10-16:04

1 stop22h 54m

Denver Intl

Mon 11/5

20:19-07:05

1 stop18h 46m

$1,996

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sat 21/3

10:20-18:06

2 stops24h 46m

Denver Intl

Wed 1/4

15:58-08:20

2 stops23h 22m

$2,013

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 26/4

12:00-15:46

1 stop19h 46m

Denver Intl

Mon 11/5

18:48-07:05

2 stops20h 17m

$2,016

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 33 results
1
2
3
4

Best time to book a flight to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Colorado

How long is the flight to Colorado?

On average, a flight from Sydney to Colorado takes 20 hours 2 minutes. Flights to Colorado from other popular cities in Australia will vary in length. Below are a few examples of popular routes and their flight times.

What are the cheapest airlines that fly to Colorado?

The cheapest airlines flying from Sydney to Colorado are Qantas Airways, Air Canada and Air New Zealand.

Rainfall in Colorado by month

Plan your trip to Colorado by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Colorado ranges from 13.0 - 58.0 mm per month. May is typically the wettest month, when rainfall can reach 58.0 mm. January is typically the driest time to visit Colorado when rainfall is around 13.0 mm.

Temperature in Colorado by month

Plan your trip to Colorado by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Colorado, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

What are the most popular places to fly to in Colorado?

Destination popularity is based on the amount of flight searches to Colorado in the last few years. This data was updated on 5 December 2025.
The most popular places in Colorado to fly to are Denver, Aspen, Colorado Springs, Vail and Montrose.

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated 5 December 2025.
See what other customers who have flown with Air New Zealand, Qantas Airways, andUnited Airlines to the United States have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Annabel,Dec 2025

WRE - AKL

Both my flights from Whangarei to Auckland and Auckland to Vancouver where late by an hour... That created a lot of anxiety that I would make it between flights, and had my husband waiting many hours for me in Vancouver to pick me up. Can there not be another plane on standby for when delays happen. The weather was not stormy, whatever the reason for the delay it happens a lot! Talking to local kiwis. No one is happy about it. The planes are also quite cold. I realise there is a belief that the cold helps one sleep, but that's a myth. It really doesn't. There is a certain warm temperature maybe a touch below body heat that is cosy to sleep. I dressed extra warm, with a t-shit, sweater and feather winter coat, still using the blanket for my legs, to stay warm on the flight back to Vancouver. It was uncomfortable in economy class. Not much room to stretch between two people. Everything else was lovely, the attendants, the food. I wish that there were more signs at the Auckland airport, knowing where to go would have been nice too. When I first landed in Auckland and had to go to domestic, it was my first time after 30 years. I asked someone where do I go? they said follow the line. They didn't say there was a bus, there were no signs saying free bus to and from domestic. It was pouring with rain, my plane again had arrived late from Brisbane, that time, air NZ all the way and I followed the line, hoping it was around the next corner, and the next corner, and the next... arriving soaked! With a few mins to spare to my auckland to whangarei flight. High anxiety that day too. When I went from Vancouver-Auckland-Brisbane. I again was confused with the signs to go international. And walking through the shops, would never have guest that was the way to go. I realise Auckland airport is getting construction done, maybe that will solve the way people go with better signs then. but for now its very confusing. Plus I saw someone purchase maple syrup at customs before their flight, and it was confiscated when they had their carry on bag checked. That doesn't seem right, made not want to purchase anything at customs. If its going to be confiscated. my recharger battery to use on the go to power charge my ipad and phone was confiscated that was over $100, would like my money back. It went from vancouver to brisbane to auckland and whangarei, then whangarei to auckland. but auckland to vancouver my luggage had the lock broken and a note saying they took it. kinda feel violated. Could customs not have called me over and asked me about it, and i could have carried it on in my carryon bag, because it seemed ok when i had it on my carry on, just not my suitcase. I ipad and phone have lithium batteries, didn't seem right. It was for charging when i was up north of newzealand on the beach. taking lots of photos needed it to recharge divices when there was no electricity driving in the car. anyway that was annoying. live and learn.

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Annabel,Dec 2025

WRE - AKL

Both my flights from Whangarei to Auckland and Auckland to Vancouver where late by an hour... That created a lot of anxiety that I would make it between flights, and had my husband waiting many hours for me in Vancouver to pick me up. Can there not be another plane on standby for when delays happen. The weather was not stormy, whatever the reason for the delay it happens a lot! Talking to local kiwis. No one is happy about it. The planes are also quite cold. I realise there is a belief that the cold helps one sleep, but that's a myth. It really doesn't. There is a certain warm temperature maybe a touch below body heat that is cosy to sleep. I dressed extra warm, with a t-shit, sweater and feather winter coat, still using the blanket for my legs, to stay warm on the flight back to Vancouver. It was uncomfortable in economy class. Not much room to stretch between two people. Everything else was lovely, the attendants, the food. I wish that there were more signs at the Auckland airport, knowing where to go would have been nice too. When I first landed in Auckland and had to go to domestic, it was my first time after 30 years. I asked someone where do I go? they said follow the line. They didn't say there was a bus, there were no signs saying free bus to and from domestic. It was pouring with rain, my plane again had arrived late from Brisbane, that time, air NZ all the way and I followed the line, hoping it was around the next corner, and the next corner, and the next... arriving soaked! With a few mins to spare to my auckland to whangarei flight. High anxiety that day too. When I went from Vancouver-Auckland-Brisbane. I again was confused with the signs to go international. And walking through the shops, would never have guest that was the way to go. I realise Auckland airport is getting construction done, maybe that will solve the way people go with better signs then. but for now its very confusing. Plus I saw someone purchase maple syrup at customs before their flight, and it was confiscated when they had their carry on bag checked. That doesn't seem right, made not want to purchase anything at customs. If its going to be confiscated. my recharger battery to use on the go to power charge my ipad and phone was confiscated that was over $100, would like my money back. It went from vancouver to brisbane to auckland and whangarei, then whangarei to auckland. but auckland to vancouver my luggage had the lock broken and a note saying they took it. kinda feel violated. Could customs not have called me over and asked me about it, and i could have carried it on in my carryon bag, because it seemed ok when i had it on my carry on, just not my suitcase. I ipad and phone have lithium batteries, didn't seem right. It was for charging when i was up north of newzealand on the beach. taking lots of photos needed it to recharge divices when there was no electricity driving in the car. anyway that was annoying. live and learn.

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Annabel,Dec 2025

WRE - AKL

Both my flights from Whangarei to Auckland and Auckland to Vancouver where late by an hour... That created a lot of anxiety that I would make it between flights, and had my husband waiting many hours for me in Vancouver to pick me up. Can there not be another plane on standby for when delays happen. The weather was not stormy, whatever the reason for the delay it happens a lot! Talking to local kiwis. No one is happy about it. The planes are also quite cold. I realise there is a belief that the cold helps one sleep, but that's a myth. It really doesn't. There is a certain warm temperature maybe a touch below body heat that is cosy to sleep. I dressed extra warm, with a t-shit, sweater and feather winter coat, still using the blanket for my legs, to stay warm on the flight back to Vancouver. It was uncomfortable in economy class. Not much room to stretch between two people. Everything else was lovely, the attendants, the food. I wish that there were more signs at the Auckland airport, knowing where to go would have been nice too. When I first landed in Auckland and had to go to domestic, it was my first time after 30 years. I asked someone where do I go? they said follow the line. They didn't say there was a bus, there were no signs saying free bus to and from domestic. It was pouring with rain, my plane again had arrived late from Brisbane, that time, air NZ all the way and I followed the line, hoping it was around the next corner, and the next corner, and the next... arriving soaked! With a few mins to spare to my auckland to whangarei flight. High anxiety that day too. When I went from Vancouver-Auckland-Brisbane. I again was confused with the signs to go international. And walking through the shops, would never have guest that was the way to go. I realise Auckland airport is getting construction done, maybe that will solve the way people go with better signs then. but for now its very confusing. Plus I saw someone purchase maple syrup at customs before their flight, and it was confiscated when they had their carry on bag checked. That doesn't seem right, made not want to purchase anything at customs. If its going to be confiscated. my recharger battery to use on the go to power charge my ipad and phone was confiscated that was over $100, would like my money back. It went from vancouver to brisbane to auckland and whangarei, then whangarei to auckland. but auckland to vancouver my luggage had the lock broken and a note saying they took it. kinda feel violated. Could customs not have called me over and asked me about it, and i could have carried it on in my carryon bag, because it seemed ok when i had it on my carry on, just not my suitcase. I ipad and phone have lithium batteries, didn't seem right. It was for charging when i was up north of newzealand on the beach. taking lots of photos needed it to recharge divices when there was no electricity driving in the car. anyway that was annoying. live and learn.

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Annabel,Dec 2025

WRE - AKL

Both my flights from Whangarei to Auckland and Auckland to Vancouver where late by an hour... That created a lot of anxiety that I would make it between flights, and had my husband waiting many hours for me in Vancouver to pick me up. Can there not be another plane on standby for when delays happen. The weather was not stormy, whatever the reason for the delay it happens a lot! Talking to local kiwis. No one is happy about it. The planes are also quite cold. I realise there is a belief that the cold helps one sleep, but that's a myth. It really doesn't. There is a certain warm temperature maybe a touch below body heat that is cosy to sleep. I dressed extra warm, with a t-shit, sweater and feather winter coat, still using the blanket for my legs, to stay warm on the flight back to Vancouver. It was uncomfortable in economy class. Not much room to stretch between two people. Everything else was lovely, the attendants, the food. I wish that there were more signs at the Auckland airport, knowing where to go would have been nice too. When I first landed in Auckland and had to go to domestic, it was my first time after 30 years. I asked someone where do I go? they said follow the line. They didn't say there was a bus, there were no signs saying free bus to and from domestic. It was pouring with rain, my plane again had arrived late from Brisbane, that time, air NZ all the way and I followed the line, hoping it was around the next corner, and the next corner, and the next... arriving soaked! With a few mins to spare to my auckland to whangarei flight. High anxiety that day too. When I went from Vancouver-Auckland-Brisbane. I again was confused with the signs to go international. And walking through the shops, would never have guest that was the way to go. I realise Auckland airport is getting construction done, maybe that will solve the way people go with better signs then. but for now its very confusing. Plus I saw someone purchase maple syrup at customs before their flight, and it was confiscated when they had their carry on bag checked. That doesn't seem right, made not want to purchase anything at customs. If its going to be confiscated. my recharger battery to use on the go to power charge my ipad and phone was confiscated that was over $100, would like my money back. It went from vancouver to brisbane to auckland and whangarei, then whangarei to auckland. but auckland to vancouver my luggage had the lock broken and a note saying they took it. kinda feel violated. Could customs not have called me over and asked me about it, and i could have carried it on in my carryon bag, because it seemed ok when i had it on my carry on, just not my suitcase. I ipad and phone have lithium batteries, didn't seem right. It was for charging when i was up north of newzealand on the beach. taking lots of photos needed it to recharge divices when there was no electricity driving in the car. anyway that was annoying. live and learn.

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Annabel,Dec 2025

WRE - AKL

Both my flights from Whangarei to Auckland and Auckland to Vancouver where late by an hour... That created a lot of anxiety that I would make it between flights, and had my husband waiting many hours for me in Vancouver to pick me up. Can there not be another plane on standby for when delays happen. The weather was not stormy, whatever the reason for the delay it happens a lot! Talking to local kiwis. No one is happy about it. The planes are also quite cold. I realise there is a belief that the cold helps one sleep, but that's a myth. It really doesn't. There is a certain warm temperature maybe a touch below body heat that is cosy to sleep. I dressed extra warm, with a t-shit, sweater and feather winter coat, still using the blanket for my legs, to stay warm on the flight back to Vancouver. It was uncomfortable in economy class. Not much room to stretch between two people. Everything else was lovely, the attendants, the food. I wish that there were more signs at the Auckland airport, knowing where to go would have been nice too. When I first landed in Auckland and had to go to domestic, it was my first time after 30 years. I asked someone where do I go? they said follow the line. They didn't say there was a bus, there were no signs saying free bus to and from domestic. It was pouring with rain, my plane again had arrived late from Brisbane, that time, air NZ all the way and I followed the line, hoping it was around the next corner, and the next corner, and the next... arriving soaked! With a few mins to spare to my auckland to whangarei flight. High anxiety that day too. When I went from Vancouver-Auckland-Brisbane. I again was confused with the signs to go international. And walking through the shops, would never have guest that was the way to go. I realise Auckland airport is getting construction done, maybe that will solve the way people go with better signs then. but for now its very confusing. Plus I saw someone purchase maple syrup at customs before their flight, and it was confiscated when they had their carry on bag checked. That doesn't seem right, made not want to purchase anything at customs. If its going to be confiscated. my recharger battery to use on the go to power charge my ipad and phone was confiscated that was over $100, would like my money back. It went from vancouver to brisbane to auckland and whangarei, then whangarei to auckland. but auckland to vancouver my luggage had the lock broken and a note saying they took it. kinda feel violated. Could customs not have called me over and asked me about it, and i could have carried it on in my carryon bag, because it seemed ok when i had it on my carry on, just not my suitcase. I ipad and phone have lithium batteries, didn't seem right. It was for charging when i was up north of newzealand on the beach. taking lots of photos needed it to recharge divices when there was no electricity driving in the car. anyway that was annoying. live and learn.

FAQs about flying to Colorado

  • Can I find cheaper flights to Colorado if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Colorado on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Colorado?

    Based on reviews from Cheapflights users, Qantas Airways is rated the highest out of the airlines that fly to Colorado.

  • What is the cheapest airport to fly to in Colorado?

    Denver Intl is currently the cheapest airport to fly to in Colorado. One-way flights to Denver Intl typically cost $45, while return flights cost around $259.

  • How much is a return flight to Colorado?

    A return flight to Colorado will typically cost around $505, however they can be found for as little as $259.

  • Where does the fastest flight to Colorado depart from?

    For those looking to save time traveling to Colorado, Sydney Kingsford Smith offers the quickest one-way flight (18 hours 8 minutes).

  • Does Denver Intl have car hire?

    Yes. Those touching down at Denver Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Denver Intl?

    Yes. Denver Intl has hotels nearby for those requiring accommodations. The Westin Denver International Airport is the closest property to Denver Intl (0.0 km away from Denver Intl).

See more FAQs

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