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HK$3,926+ Cheap flights to Boulder

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 31-3. Fares are subject to change and may not be available on all flights or dates of travel.
— DEN
31 Mar — 7 Apr1
1 adult

Flights to Boulder in 2025

Find the latest flights to Boulder in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 26 March 2025.

Return from

HK$6,476

One-way from

HK$3,926

Popular in

August

Cheapest in

February

Average price

HK$7,743
United Airlines
  • United Airlines
  • 23-4-4-5
  • 2 total stops
  • 45h 58m total
  • Hong Kong to Denver
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31-3
  • 31-3
  • 2 total stops
  • 47h 14m total
  • Hong Kong to Boulder
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Highest demand for flights based on searches. 24% potential increase in price (HK$22,691 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (HK$4,038 potential savings vs. average return price).
Search Deals
Average for return flights in March 2025
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Find flight deals to Boulder

Cheapest flights to Boulder
Explore the most affordable flight options available to Boulder. Find the lowest fares based on data from user searches, with prices last updated on 26 March 2025.

Wed 23-411:15HKG - DEN
1 stop17h 44mUnited Airlines
Sun 4-511:26DEN - HKG
1 stop28h 14mUnited Airlines
Deal found 25-3HK$6,476
Thu 26-620:10HKG - DEN
2 stops41h 49m星宇航空
Mon 30-620:32DEN - HKG
2 stops32h 23m星宇航空
Deal found 25-3HK$8,179
Tue 22-400:45HKG - DEN
2 stops36h 33mDelta
Sun 4-506:30DEN - HKG
2 stops38h 10mDelta
Deal found 25-3HK$9,314
Wed 25-600:50HKG - DEN
2 stops37h 09mMultiple Airlines
Mon 30-618:30DEN - HKG
1 stop20h 05mMultiple Airlines
Deal found 25-3HK$11,732
Wed 25-600:05HKG - DEN
1 stop25h 05mCathay Pacific
Mon 30-618:30DEN - HKG
1 stop20h 05mCathay Pacific
Deal found 25-3HK$15,316
Thu 26-619:00HKG - DEN
2 stops39h 36mEmirates
Mon 30-614:44DEN - HKG
3 stops37h 21mEmirates
Deal found 25-3HK$20,439

Cheapflights Fare Finder

Locate flights to Boulder that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 26 March 2025.
Use the filters below to find and compare flights to Boulder that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Wed 23-4

11:15-14:59

1 stop17h 44m

Denver Intl

Sun 4-5

11:15-05:00

2 stops27h 45m

HK$6,476

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Thu 26-6

20:10-23:59

2 stops41h 49m

Denver Intl

Mon 30-6

20:32-18:55

2 stops32h 23m

HK$8,179

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Tue 22-4

00:45-23:18

2 stops36h 33m

Denver Intl

Sun 4-5

06:30-10:40

2 stops38h 10m

HK$9,314

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Wed 25-6

00:50-23:59

2 stops37h 09m

Denver Intl

Mon 30-6

18:30-04:35

1 stop20h 05m

HK$11,732

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Wed 25-6

00:05-11:10

1 stop25h 05m

Denver Intl

Mon 30-6

18:30-04:35

1 stop20h 05m

HK$15,316

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Thu 26-6

19:00-20:36

2 stops39h 36m

Denver Intl

Mon 30-6

14:44-18:05

3 stops37h 21m

HK$20,439

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Mon 31-3

08:55-18:09

2 stops47h 14m

HK$3,926

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Mon 7-7

11:20-23:59

2 stops26h 39m

HK$5,738

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Sat 3-5

22:30-19:11

2 stops34h 41m

HK$6,313

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Sun 6-7

01:25-22:56

2 stops35h 31m

HK$7,168

Flights are sorted by cheapest return flights first.

Deals found on 25-3

Showing 1-10 of 15 results
1
2

Best time to book a flight to Boulder

Have a flexible travel schedule? Discover the best time to fly to Boulder 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 Boulder

How long is the flight to Boulder?

On average, a flight from Hong Kong to Boulder takes 17 hours 44 minutes. Flights to Boulder from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Boulder?

The most popular airlines flying from Hong Kong to Boulder are United Airlines and Air Canada.

United Airlines

United Airlines

From HK$831

Air Canada

Air Canada

From HK$902

What are the cheapest airlines that fly to Boulder?

The cheapest airlines flying from Hong Kong to Boulder are United Airlines and Air Canada.

Rainfall in Boulder by month

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

In terms of precipitation, rainfall in Boulder 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 Boulder when rainfall is around 13.0 mm.

Temperature in Boulder by month

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

If weather is an important factor for your trip to Boulder, 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).

Reviews of airlines servicing Boulder

Get insights into the airlines that provide service to Boulder. 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 Boulder. Reviews last updated 26 March 2025.
星宇航空
9.1
Wonderful
Check prices

Food

8.9

Overall

9.1

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Crew

9.3

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
星宇航空
9.1
Wonderful
星宇航空
9.1
Wonderful
Check prices

Food

8.9

Overall

9.1

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Crew

9.3

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Korean Air
8.4
Very Good
1,049 reviews
星宇航空
9.1
Wonderful
Check prices

Food

8.9

Overall

9.1

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Crew

9.3

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Japan Airlines
8.3
Very Good
1,440 reviews
星宇航空
9.1
Wonderful
Check prices

Food

8.9

Overall

9.1

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Crew

9.3

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Emirates
8.0
Very Good
3,190 reviews
星宇航空
9.1
Wonderful
Check prices

Food

8.9

Overall

9.1

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Crew

9.3

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Delta
8.0
Very Good
7,891 reviews
星宇航空
9.1
Wonderful
Check prices

Food

8.9

Overall

9.1

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Crew

9.3

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

FAQs about flying to Boulder

  • Can I find cheaper flights to Boulder 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 Boulder on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Boulder?

    Based on reviews from Cheapflights users, United Airlines is rated the highest out of the airlines that fly to Boulder.

  • How much is a return flight to Boulder?

    A return flight to Boulder will typically cost around HK$148, however they can be found for as little as HK$146.

  • Does Denver Intl have rental cars?

    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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