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Due to coronavirus (COVID-19) travel advisories, some destinations may be unavailable for certain dates. Find out more.
Due to coronavirus (COVID-19) travel advisories, some destinations may be unavailable for certain dates. Find out more.

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How much is the cheapest flight to Boulder?

Prices were available within the past 7 days and starts at CA $50 for one-way flights and CA $99 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Trending flights to Boulder

Prices were available within the past 7 days and starts at CA $50 for one-way flights and CA $99 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ready to feel a little bit bolder in Boulder? Visiting this mountainous city in Colorado will definitely give you wings. Travel to the majestic foothills of the Rocky Mountains to explore Boulder Creek Path, the Flatirons, Eldorado Canyon, and Chautauqua Park. Get a dose of culture on a tour of the beautiful campus of the University of Colorado at Boulder. Boulder is bursting with scientific institutions, groovy festivals, and quirky museums. This charming city is also full of fresh air, refreshing landscapes, and intriguing neighborhoods. Are you ready to change into your favourite pair of sneakers and take on all the most popular things to do in Boulder? Reach the summit of saving money by booking cheap flights to Boulder here on Expedia.ca. Our discount specials to the Berkeley of the Rockies are downright countercultural.

Book Blissful Boulder Airfare Specials Today

Do you love the idea of enjoying an urban environment while being surrounded by stunning mountain peaks? Don’t miss your opportunity to find exclusive airfare bargains to this naturally thrilling city. Saving money is as easy as entering your departure airport and anticipated travel dates into our fabulous online travel tools. We work with nearly every airport and airline to give you a versatile selection of ticket options.

The Cheapest Way to Get to Colorado

The best route to Boulder starts with a landing at Denver International Airport (DEN). This major airport offers all the convenience you could ever hope for. What's more, you'll have no trouble renting an affordable car as soon as you touch down. When you’re ready to bust out of Boulder, take a flight from Denver International Airport back home with a little help from our amazing discounts.

Reserve Epic Deals on Boulder Flights and Vacation Packages

Put on your climbing gear and get ready to scale our huge pile of travel deals. Now is the perfect time to grab hold of all-inclusive offers featuring great flights and stays at the best hotels in Boulder. Are you ready to embrace the restless spirit of the Rockies on a vacation to remember? Start climbing the towering trail of cheap tickets on Expedia.ca before your perfect flight to Boulder, CO rolls down the mountain.

Flights to Denver information

Destination Airport Denver Intl.
Destination Airport IATA Code DEN
Destination City Name Denver

Reviews from verified customers

Mar 20, 2020

We were very pleased with United. Service was good, the check-in was quick and easy, the flight was on time, United sent text messages for updates etc. It was about as good as it could get.

Mar 16, 2020

Great flying experience

Mar 15, 2020

Baggage can’t be located yet

Mar 4, 2020

You need to have electrical outlets to power phones, ipads etc

Mar 2, 2020

Like the info given on the iPhone

Feb 28, 2020

Friendly staff!

Feb 20, 2020

1st time flying United. Was a great experience.

Feb 18, 2020

We were unable to check in through the app as we needed to provide proof of a return ticket/additional flights, this was just a bit inconvenient but the service was so great at the airport and was so quick!

Feb 17, 2020

Seat power should be standard

Feb 15, 2020

Seats were not that comfortable. Felt that the seat sloped down toward the front.