
Cheap Flights to Boulder from HK$1,060
View HK$1,060 flight on Tue, 1 Sept 2026Opens in a new windowPopular airlines to Boulder
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Cheap round-trip flights to Boulder
Prices were available within the past 7 days and start at HK$1,060 for one-way flights and HK$2,120 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, 1 Sept - Wed, 2 Sept
BWI
Baltimore
DEN
Denver
HK$2,120
Return
just found

Tue, 1 Sept - Wed, 2 Sept
BWI
Baltimore
DEN
Denver
HK$2,475
Return
just found

Tue, 1 Sept - Wed, 2 Sept
BWI
Baltimore
DEN
Denver
HK$2,752
Return
just found

Thu, 10 Sept - Tue, 15 Sept
YYZ
Toronto
DEN
Denver
HK$3,764
Return
found 3 days ago

Sun, 6 Sept - Thu, 10 Sept
HKG
Hong Kong SAR
DEN
Denver
HK$7,839
Return
found 11 hours ago
Find the cheapest month to fly from Columbus (CMH) to Denver (DEN)
From HK$1,270 - HK$2,572 per traveller.
Frequently asked questions
What is the name of Boulder's airport?
Boulder is served by just one airport, Denver Intl. Airport (DEN).
What airport is best to fly into Boulder?
Travellers from all corners of the globe go through DEN each day. Hop off the plane, get your bags and you'll be 56 kilometres from the downtown Boulder streets.
How many airlines fly to Boulder?
There are 24 air carriers that jet into Boulder from 204 airports around the world.
Which airlines fly to Boulder?
Southwest Airlines, United Airlines and Frontier Airlines are the most frequent fliers to Boulder. The majority of these flights originate in Phoenix, with Southwest Airlines having the most services on this route.
How many nonstop flights are there to Boulder?
Flying to someplace new is much easier when there aren't any lengthy stopovers. If you're travelling to Boulder, the great news is that there are around 5,892 nonstop flights operating each week.
Where are the most popular flights to Boulder departing from?
Flights to Boulder departing from Phoenix, Dallas and Salt Lake City airports are always popular.
How long is the flight to Boulder Airport?
If you're going to Boulder from Phoenix, you're looking at a flight duration of 1 hour and 51 minutes. Those departing from Dallas can expect to be in the air for 2 hours and 10 minutes. From Salt Lake City it's about 1 hour and 40 minutes away.
How to book the cheapest flight to Boulder?
We all know those fortunate travellers who somehow nab super cheap fares every time they fly. Want to know how to do it for your Boulder holiday? Don't leave it until the very last minute to lock in your flight. Don't stop there, however. Do some research and see if there are a few airports at your destination. Prices often differ depending on the airport you use. Make sure you compare prices across airlines too. And finally, remember that the early bird catches the worm. Know what a typical airfare costs and be ready to reserve your seat as soon as you spot a bargain. The best deals don't last long.
Do you have any tips for my flight to Boulder?
Wherever you're jetting in from, flying can be an enjoyable experience if you prepare well enough. We've put together a list of handy tips and tricks that will help get your Boulder escape started on the right foot. What to pack in your hand luggage:
- Flying can be a comfortable experience if you pack the right things. Firstly, you'll need toiletry items, such as a toothbrush and some deodorant, a spare pair of socks and a few magazines. Next, find a spot in your hand luggage for your laptop, a charger, any daily medications and perhaps a proper neck pillow too. Lastly, and most importantly, don't forget to take your passport, travel documents and some money.
- Make sure you don't have a sharp object hiding in the bottom of your carry-on luggage. Other prohibited items include flammable or explosive products, like aerosols and matches, and liquids and gels in containers larger than 3.4 ounces (100 millilitres).
- The aisles of an aircraft are no place for a fashion parade. Layer your clothing and opt for shoes that are roomy, flat and easy to remove.
- Most of us have heard about deep vein thrombosis (DVT), a blood clotting condition caused by prolonged periods of inactivity. To minimize your risk on board, drink plenty of water, consider wearing compression socks or tights and move your lower limbs often.
How to get through airport security fast when flying to Boulder?
The secret is to be well prepared before you get to airport security. That way, you'll be stepping onto that plane to Boulder in next to no time. Follow these helpful tips and get your holiday off to a terrific start:
- Airport security personnel first need to determine that you have a valid passport and travel documents before anything else. Have them within easy reach, ready for inspection.
- Next up is the X-ray machine. Remove anything on you that is likely to beep. This includes items like earphones or headphones, as well as your coat or jacket. They'll all need to go on the X-ray conveyor belt.
- For just a few minutes, you'll have to unplug from the digital world. Your phone, laptop and any other electronic devices must also go through the scanner.
- Remove all gels and liquids from your hand luggage. They often need to be sent through the X-ray separately. Each item should be no larger than 3.4 ounces (100 millilitres) and everything must fit inside a single quart-size (one litre), clear zip-lock bag.
- It's also possible you'll need to remove your shoes for scanning, so wearing slip-on shoes is always a clever idea.
- Pocket knives and other sharp items can't be taken on board. They'll be confiscated at security, so put them in your checked luggage.
Travel information
Destination airport | Denver Intl. |
|---|---|
Destination airport IATA code | DEN |
Destination city name | Denver |
Return price | HK$1,502 |
Trending flights to Boulder
Prices were available within the past 7 days and start at HK$1,060 for one-way flights and HK$2,120 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, 6 Sept - Thu, 10 Sept
HKG
Hong Kong SAR
DEN
Denver
HK$7,839
Return
found 11 hours ago
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