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).

HK$3,691+ Flights to Boulder

Flights to Boulder in 2025

Return from	HK$6,162
One-way from	HK$3,691
Popular in	August
Cheapest in	February
Average price	HK$6,574

United Airlines
20-3-26-3
3 total stops
42h 39m total
Hong Kong to Denver

Search Deals

24-3
2 total stops
33h 26m total
Hong Kong to Boulder

Search Deals

Highest demand for flights based on searches. 23% potential increase in price (HK$22,256 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (HK$4,001 potential savings vs. average return price).

Search Deals

Average for return flights in February 2025

Search Deals

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 22 February 2025.

Sun 23-221:05HKG - DEN

1 stop36h 10mUnited Airlines

Sat 1-319:00DEN - HKG

1 stop33h 20mUnited Airlines

Deal found 21-2HK$6,162

Fri 21-311:20HKG - DEN

2 stops26h 38m星宇航空

Wed 26-319:57DEN - HKG

2 stops32h 33m星宇航空

Deal found 21-2HK$7,468

Mon 3-310:45HKG - DEN

2 stops21h 35mMultiple Airlines

Thu 10-418:00DEN - HKG

1 stop32h 05mMultiple Airlines

Deal found 21-2HK$7,724

Thu 20-300:55HKG - DEN

2 stops36h 23mKorean Air

Wed 26-306:00DEN - HKG

2 stops27h 10mKorean Air

Deal found 21-2HK$7,771

Wed 19-300:55HKG - DEN

2 stops36h 19mDelta

Wed 26-306:10DEN - HKG

2 stops41h 55mDelta

Deal found 21-2HK$7,779

Mon 3-323:20HKG - DEN

1 stop33h 20mTurkish Airlines

Thu 10-419:50DEN - HKG

1 stop31h 25mTurkish Airlines

Deal found 21-2HK$8,796

Wed 19-300:15HKG - DEN

1 stop28h 15mLufthansa

Wed 26-316:50DEN - HKG

1 stop33h 50mLufthansa

Deal found 21-2HK$11,780

Sat 22-200:50HKG - DEN

2 stops30h 18mAsiana Airlines

Sat 1-319:45DEN - HKG

2 stops35h 55mAsiana Airlines

Deal found 21-2HK$14,088

Tue 22-400:05HKG - DEN

2 stops36h 07mEmirates

Sun 4-511:25DEN - HKG

3 stops40h 40mEmirates

Deal found 21-2HK$19,295

Mon 3-322:50HKG - DEN

4 stops52h 22mEthiopian Air

Thu 10-413:25DEN - HKG

3 stops35h 30mEthiopian Air

Deal found 21-2HK$22,193

Best flights to Boulder
Discover carefully curated flight deals to Boulder that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 February 2025.

Thu 20-309:30HKG - DEN

1 stop19h 19mUnited Airlines

Wed 26-306:00DEN - HKG

2 stops23h 20mUnited Airlines

Deal found 21-2HK$6,162

Fri 21-311:20HKG - DEN

2 stops26h 38m星宇航空

Wed 26-319:57DEN - HKG

2 stops32h 33m星宇航空

Deal found 21-2HK$7,468

Thu 20-300:55HKG - DEN

2 stops36h 23mKorean Air

Wed 26-306:00DEN - HKG

2 stops27h 10mKorean Air

Deal found 21-2HK$7,771

Wed 19-300:55HKG - DEN

2 stops36h 19mDelta

Wed 26-306:10DEN - HKG

2 stops41h 55mDelta

Deal found 21-2HK$7,779

Tue 22-400:45HKG - DEN

2 stops32h 12mMultiple Airlines

Sun 4-519:05DEN - HKG

1 stop31h 00mMultiple Airlines

Deal found 21-2HK$9,706

Wed 19-300:15HKG - DEN

1 stop28h 15mLufthansa

Wed 26-316:50DEN - HKG

1 stop33h 50mLufthansa

Deal found 21-2HK$11,780

Tue 22-400:05HKG - DEN

2 stops36h 07mEmirates

Sun 4-511:25DEN - HKG

3 stops40h 40mEmirates

Deal found 21-2HK$19,295

Last-minute flights to Boulder
Discover last-minute flight deals to Boulder. Data last updated 22 February 2025 and is based on user searches.

Sat 22-200:50HKG - DEN

2 stops30h 18mAsiana Airlines

Sat 1-319:45DEN - HKG

2 stops35h 55mAsiana Airlines

Deal found 21-2HK$14,088

Sun 23-221:05HKG - DEN

1 stop16h 23mUnited Airlines

Fri 28-213:30DEN - HKG

1 stop26h 15mUnited Airlines

Deal found 21-2HK$6,162

Sun 2-300:55HKG - DEN

2 stops33h 02mDelta

Thu 10-406:55DEN - HKG

2 stops43h 25mDelta

Deal found 21-2HK$9,721

Mon 3-310:45HKG - DEN

2 stops21h 35mMultiple Airlines

Thu 10-418:00DEN - HKG

1 stop32h 05mMultiple Airlines

Deal found 21-2HK$7,724

Mon 3-310:30HKG - DEN

2 stops19h 11mUnited Airlines

Thu 10-416:05DEN - HKG

2 stops22h 55mUnited Airlines

Deal found 21-2HK$7,740

Mon 3-323:20HKG - DEN

1 stop33h 20mTurkish Airlines

Thu 10-419:50DEN - HKG

1 stop31h 25mTurkish Airlines

Deal found 21-2HK$8,796

Mon 3-321:00HKG - DEN

3 stops38h 23mEmirates

Thu 10-414:50DEN - HKG

2 stops40h 25mEmirates

Deal found 21-2HK$20,864

Mon 3-322:50HKG - DEN

4 stops52h 22mEthiopian Air

Thu 10-413:25DEN - HKG

3 stops35h 30mEthiopian Air

Deal found 21-2HK$22,193

Wed 19-300:55HKG - DEN

2 stops36h 19mDelta

Wed 26-306:10DEN - HKG

2 stops41h 55mDelta

Deal found 21-2HK$7,779

Wed 19-300:15HKG - DEN

1 stop28h 15mLufthansa

Wed 26-316:50DEN - HKG

1 stop33h 50mLufthansa

Deal found 21-2HK$11,780

Wed 19-300:35HKG - DEN

2 stops33h 20mEmirates

Wed 26-313:35DEN - HKG

3 stops38h 05mEmirates

Deal found 21-2HK$20,352

Thu 20-300:55HKG - DEN

2 stops36h 23mKorean Air

Wed 26-306:00DEN - HKG

2 stops27h 10mKorean Air

Deal found 21-2HK$7,771

One-way flights to Boulder
Search for one-way flight options to Boulder. Find affordable one-way fares based on user searches. Data last updated 22 February 2025.

Mon 24-314:35HKG - DEN

2 stops33h 26mMultiple Airlines

Deal found 21-2HK$3,691

Mon 7-711:20HKG - DEN

2 stops25h 19m星宇航空

Deal found 21-2HK$5,214

Mon 24-319:25HKG - DEN

1 stop16h 28mAir Canada

Deal found 21-2HK$5,269

Sat 22-300:55HKG - DEN

2 stops36h 23mDelta

Deal found 21-2HK$5,750

Sun 6-701:25HKG - DEN

2 stops35h 31mQatar Airways

Deal found 21-2HK$6,893

Mon 7-722:30HKG - DEN

1 stop33h 25mTurkish Airlines

Deal found 21-2HK$7,460

Mon 11-822:30HKG - DEN

3 stops27h 05mUnited Airlines

Deal found 21-2HK$9,814

Mon 7-721:30HKG - DEN

3 stops37h 03mEmirates

Deal found 21-2HK$10,055

Sun 10-800:25HKG - DEN

3 stops52h 17mEthiopian Air

Deal found 21-2HK$15,083

Fri 21-300:40HKG - DEN

2 stops36h 55mAsiana Airlines

Deal found 21-2HK$22,963

Thu 20-300:55HKG - DEN

2 stops31h 17mKorean Air

Deal found 21-2HK$27,532

Find flights to Boulder within your budget

Fly from

Route

Departure

Return

Price

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Thu 20-3

09:30-12:31

1 stop17h 01m

Denver Intl

Wed 26-3

15:40-05:55

1 stop24h 15m

HK$6,162

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Fri 21-3

11:20-23:58

2 stops26h 38m

Denver Intl

Wed 26-3

19:57-18:30

2 stops32h 33m

HK$7,468

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Thu 20-3

00:55-23:18

2 stops36h 23m

Denver Intl

Wed 26-3

06:00-23:10

2 stops27h 10m

HK$7,771

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Wed 19-3

00:55-23:14

2 stops36h 19m

Denver Intl

Wed 26-3

06:10-14:05

2 stops41h 55m

HK$7,779

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Tue 22-4

00:45-18:57

2 stops32h 12m

Denver Intl

Sun 4-5

19:05-16:05

1 stop31h 00m

HK$9,706

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Wed 19-3

00:15-14:30

1 stop28h 15m

Denver Intl

Wed 26-3

16:50-16:40

1 stop33h 50m

HK$11,780

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Tue 22-4

00:05-22:12

2 stops36h 07m

Denver Intl

Sun 4-5

11:25-18:05

3 stops40h 40m

HK$19,295

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Mon 24-3

14:35-10:01

2 stops33h 26m

HK$3,691

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Mon 7-7

11:20-22:39

2 stops25h 19m

HK$5,214

Hong KongDenver

HKG - DEN

HKGDEN

Hong Kong Intl

Mon 24-3

19:25-21:53

1 stop16h 28m

HK$5,269

Flights are sorted by cheapest return flights first.

Deals found on 21-2

Showing 1-10 of 18 results

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.

Travel insights for flights to Boulder

Get recent, data-driven insights about flights to Boulder including ideal travel times, pricing trends, and more.

How long is the flight to Boulder?

On average, a flight from Hong Kong to Boulder takes 20 hours 38 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

From HK$845

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

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

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

Read through reviews of airlines servicing Boulder, such as 星宇航空, Korean Air and Asiana Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

星宇航空

9.1

Wonderful

Check prices

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

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

1,036 reviews

星宇航空

9.1

Wonderful

Check prices

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.

Asiana Airlines

8.3

Very Good

444 reviews

星宇航空

9.1

Wonderful

Check prices

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

8.1

Very Good

3,276 reviews

星宇航空

9.1

Wonderful

Check prices

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

8,203 reviews

星宇航空

9.1

Wonderful

Check prices

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.

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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Why should you use Cheapflights to find cheap flight tickets to Boulder?

Cheapflights helps you find that perfect flight to Boulder by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights to Boulder with no change fees?

Yes, we can. To see specific flights to Boulder with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights to Boulder become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Boulder today and book when you’re ready!

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HK$3,691+ 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 24-3. Fares are subject to change and may not be available on all flights or dates of travel.

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 22 February 2025.

Return from

One-way from

Popular in

Cheapest in

Average price

Find flight deals to Boulder

Cheapest flights to BoulderExplore the most affordable flight options available to Boulder. Find the lowest fares based on data from user searches, with prices last updated on 22 February 2025.

Explore the most affordable flight options available to Boulder. Find the lowest fares based on data from user searches, with prices last updated on 22 February 2025.

Find flights to Boulder within your budget

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 22 February 2025.

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.

Travel insights for flights to Boulder

Get recent, data-driven insights about flights to Boulder including ideal travel times, pricing trends, and more.

How long is the flight to Boulder?

What are the most popular airlines that fly to Boulder?

What are the cheapest airlines that fly to Boulder?

Rainfall in Boulder by month

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

Temperature in Boulder by month

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

Reviews of airlines servicing Boulder

Read through reviews of airlines servicing Boulder, such as 星宇航空, Korean Air and Asiana Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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

What is the best airline to fly to Boulder?

How much is a return flight to Boulder?

Does Denver Intl have rental cars?

Are there hotels close to Denver Intl?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Boulder by cabin class

Find flights to Boulder, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Boulder?

Why should you use Cheapflights to find cheap flight tickets to Boulder?

Can Cheapflights find flights to Boulder with no change fees?

Can Cheapflights notify me if prices for flights to Boulder become cheaper?

100% Free

Book with Flexibility

Travel Smart

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 22 February 2025.