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HK$4,167+ 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 29-5. Fares are subject to change and may not be available on all flights or dates of travel.
— DEN
29 Apr — 6 May1
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 24 April 2025.

Return from

HK$7,643

One-way from

HK$4,167

Popular in

August

Cheapest in

February

Average price

HK$6,564
星宇航空
  • 星宇航空
  • 6-6-13-6
  • 4 total stops
  • 64h 37m total
  • Hong Kong to Denver
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29-5
  • 29-5
  • 2 total stops
  • 25h 52m total
  • Hong Kong to Boulder
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Highest demand for flights based on searches. 23% potential increase in price (HK$21,462 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (HK$3,918 potential savings vs. average return price).
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Average for return flights in April 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 24 April 2025.

Wed 23-422:30HKG - DEN
1 stop25h 50mUnited Airlines
Sun 4-515:51DEN - HKG
1 stop23h 49mUnited Airlines
Deal found 23-4HK$6,479
Wed 16-718:00HKG - DEN
2 stops42h 04mAir Canada
Tue 6-111:21DEN - HKG
2 stops40h 19mAir Canada
Deal found 24-4HK$8,690
Mon 14-723:15HKG - DEN
2 stops35h 23mSWISS
Fri 9-117:35DEN - HKG
2 stops56h 30mSWISS
Deal found 24-4HK$9,691
Tue 22-723:15HKG - DEN
1 stop31h 05mMultiple Airlines
Tue 6-117:45DEN - HKG
1 stop31h 55mMultiple Airlines
Deal found 23-4HK$9,994
Tue 15-722:30HKG - DEN
1 stop33h 25mTurkish Airlines
Tue 6-119:35DEN - HKG
1 stop30h 30mTurkish Airlines
Deal found 24-4HK$10,320
Mon 21-701:25HKG - DEN
2 stops33h 59mQatar Airways
Tue 6-123:14DEN - HKG
2 stops31h 16mQatar Airways
Deal found 23-4HK$11,654
Sun 13-723:25HKG - DEN
1 stop28h 00mLufthansa
Mon 5-117:45DEN - HKG
1 stop31h 55mLufthansa
Deal found 24-4HK$12,686
Mon 14-723:00HKG - DEN
1 stop31h 25mBritish Airways
Sat 3-114:24DEN - HKG
2 stops33h 06mBritish Airways
Deal found 23-4HK$13,889
Sat 12-700:30HKG - DEN
2 stops36h 17mAsiana Airlines
Thu 8-119:00DEN - HKG
2 stops25h 50mAsiana Airlines
Deal found 23-4HK$14,719
Tue 22-708:10HKG - DEN
3 stops28h 59mJapan Airlines
Tue 6-119:53DEN - HKG
2 stops26h 47mJapan Airlines
Deal found 23-4HK$14,866
Tue 15-700:40HKG - DEN
2 stops33h 56mEmirates
Tue 6-113:25DEN - HKG
3 stops37h 15mEmirates
Deal found 24-4HK$17,598

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 24 April 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 16-7

18:00-22:04

2 stops42h 04m

Denver Intl

Tue 6-1

11:21-18:40

2 stops40h 19m

HK$8,690

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Mon 14-7

23:15-20:38

2 stops35h 23m

Denver Intl

Fri 9-1

17:35-17:05

2 stops56h 30m

HK$9,691

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Tue 22-7

23:15-16:20

1 stop31h 05m

Denver Intl

Tue 6-1

17:45-16:40

1 stop31h 55m

HK$9,994

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Tue 15-7

22:30-17:55

1 stop33h 25m

Denver Intl

Tue 6-1

19:35-17:05

1 stop30h 30m

HK$10,320

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Mon 21-7

01:25-21:24

2 stops33h 59m

Denver Intl

Tue 6-1

23:14-21:30

2 stops31h 16m

HK$11,654

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Sun 13-7

23:25-13:25

1 stop28h 00m

Denver Intl

Wed 7-1

17:45-16:40

1 stop31h 55m

HK$12,686

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Mon 14-7

23:00-16:25

1 stop31h 25m

Denver Intl

Sat 3-1

14:24-14:30

2 stops33h 06m

HK$13,889

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Sat 12-7

00:30-22:47

2 stops36h 17m

Denver Intl

Thu 8-1

19:00-11:50

2 stops25h 50m

HK$14,719

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Tue 22-7

08:10-23:09

3 stops28h 59m

Denver Intl

Tue 6-1

19:53-13:40

2 stops26h 47m

HK$14,866

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Tue 15-7

00:40-20:36

2 stops33h 56m

Denver Intl

Tue 6-1

13:25-17:40

3 stops37h 15m

HK$17,598

Flights are sorted by cheapest return flights first.

Deals found on 23-4

Showing 1-10 of 20 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 27 hours 50 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 24 April 2025.
星宇航空
9.1
Wonderful
Check prices

Crew

9.3

Food

8.9

Boarding

9.0

Overall

9.1

Comfort

9.0

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
星宇航空
9.1
Wonderful
星宇航空
9.1
Wonderful
Check prices

Crew

9.3

Food

8.9

Boarding

9.0

Overall

9.1

Comfort

9.0

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Japan Airlines
8.3
Very Good
1,453 reviews
星宇航空
9.1
Wonderful
Check prices

Crew

9.3

Food

8.9

Boarding

9.0

Overall

9.1

Comfort

9.0

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Emirates
8.0
Very Good
3,206 reviews
星宇航空
9.1
Wonderful
Check prices

Crew

9.3

Food

8.9

Boarding

9.0

Overall

9.1

Comfort

9.0

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Delta
8.0
Very Good
7,920 reviews
星宇航空
9.1
Wonderful
Check prices

Crew

9.3

Food

8.9

Boarding

9.0

Overall

9.1

Comfort

9.0

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Cathay Pacific
7.5
Good
850 reviews
星宇航空
9.1
Wonderful
Check prices

Crew

9.3

Food

8.9

Boarding

9.0

Overall

9.1

Comfort

9.0

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

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$160, however they can be found for as little as HK$137.

  • 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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