
Popular airlines from Boulder
- American Airlines 
- Frontier Airlines 
- Delta 
- United 
- Alaska Airlines 
- Southwest Airlines 
- JetBlue Airways 
- Be in the knowGet alerts if flight prices drop or rise*
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Today's featured flight deals from Boulder
- Denver (DEN) to New York (JFK).JetBlue Airways, nonstop.Departing on Wed, Nov 12 at 11:50am from Denver, arriving at 5:29pm in New York.Returning on Sun, Nov 16 at 8:25am from New York, arriving at 11:05am in Denver.Select JetBlue Airways flight departing on Wed, Nov 12 at 11:50am from Denver, returning on Sun, Nov 16 at 8:25am from New York priced at $22645% less than typical$226
- Denver (DEN) to New York (JFK).JetBlue Airways, nonstop.Departing on Tue, Nov 25 at 11:25pm from Denver, arriving on Wed, Nov 26 at 5:00am in New York.Returning on Tue, Dec 2 at 8:05am from New York, arriving at 3:46pm in Denver.Select JetBlue Airways flight departing on Tue, Nov 25 at 11:25pm from Denver, returning on Tue, Dec 2 at 8:05am from New York priced at $24740% less than typical$247
- Denver (DEN) to New York (JFK).Delta, nonstop.Departing on Sat, Dec 6 at 7:10am from Denver, arriving at 12:59pm in New York.Returning on Tue, Dec 9 at 4:30pm from New York, arriving at 7:01pm in Denver.Select Delta flight departing on Sat, Dec 6 at 7:10am from Denver, returning on Tue, Dec 9 at 4:30pm from New York priced at $16750% less than typical$167
- Denver (DEN) to Phoenix (PHX).Southwest Airlines, nonstop.Departing on Thu, Nov 27 at 12:30pm from Denver, arriving at 2:25pm in Phoenix.Returning on Sun, Nov 30 at 10:15pm from Phoenix, arriving on Mon, Dec 1 at 6:30am in Denver.Select Southwest Airlines flight departing on Thu, Nov 27 at 12:30pm from Denver, returning on Sun, Nov 30 at 10:15pm from Phoenix priced at $31340% less than typical$313
- Denver (DEN) to Phoenix (PHX).Southwest Airlines, nonstop.Departing on Sat, Nov 22 at 11:10am from Denver, arriving at 1:10pm in Phoenix.Returning on Fri, Nov 28 at 8:10am from Phoenix, arriving at 12:40pm in Denver.Select Southwest Airlines flight departing on Sat, Nov 22 at 11:10am from Denver, returning on Fri, Nov 28 at 8:10am from Phoenix priced at $28335% less than typical$283
- Denver (DEN) to Phoenix (PHX).Southwest Airlines, nonstop.Departing on Mon, Nov 24 at 7:10pm from Denver, arriving at 9:10pm in Phoenix.Returning on Sat, Nov 29 at 10:40pm from Phoenix, arriving on Sun, Nov 30 at 8:25am in Denver.Select Southwest Airlines flight departing on Mon, Nov 24 at 7:10pm from Denver, returning on Sat, Nov 29 at 10:40pm from Phoenix priced at $30330% less than typical$303
- Denver (DEN) to Boston (BOS).Delta, nonstop.Departing on Thu, Nov 27 at 11:49am from Denver, arriving at 5:43pm in Boston.Returning on Sun, Dec 7 at 6:10am from Boston, arriving at 9:00am in Denver.Select Delta flight departing on Thu, Nov 27 at 11:49am from Denver, returning on Sun, Dec 7 at 6:10am from Boston priced at $17755% less than typical$177
- Denver (DEN) to Boston (BOS).Delta, nonstop.Departing on Thu, Nov 27 at 11:49am from Denver, arriving at 5:43pm in Boston.Returning on Sun, Dec 7 at 6:20pm from Boston, arriving at 9:05pm in Denver.Select Delta flight departing on Thu, Nov 27 at 11:49am from Denver, returning on Sun, Dec 7 at 6:20pm from Boston priced at $17755% less than typical$177
- Denver (DEN) to Boston (BOS).Southwest Airlines, nonstop.Departing on Fri, Nov 14 at 12:50pm from Denver, arriving at 6:40pm in Boston.Returning on Fri, Nov 21 at 6:10am from Boston, arriving at 9:00am in Denver.Select Southwest Airlines flight departing on Fri, Nov 14 at 12:50pm from Denver, returning on Fri, Nov 21 at 6:10am from Boston priced at $21245% less than typical$212
Cheapest flights from Boulder
These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










How to Find Cheap Flights from Boulder, CO
How much is a flight from Boulder?
This week, flights from Boulder are available between $66 – $201.
How to find cheap flights from Boulder?
Expedia makes it easy to compare cheap flights from Boulder to many destinations. Check out excellent deals on domestic and international flights from Boulder. Once you select an offer, use our filters and sort by “Price (Lowest)” to see some of the cheapest and suitable options.
How can I get the best deal on flights from Boulder?
On Expedia, you have some of best airline ticket deals at your fingertips. Whether it’s a beach escape with your partner, a family vacation with your kids, or business trip with colleagues, these low airline ticket prices mean more savings for you. An excellent strategy for finding some of the best deals on flights from Boulder is to be flexible with your dates. Within each offer, you can compare prices for similar timeframes using our “Show flexible dates” feature. Depending on your destination, direct flights from Boulder may be more expensive. Airlines with strict bag policies or fees can also impact your costs.
What is the best airline to fly from Boulder?
At Expedia, we give you all the available options from our reputable partners. Select the airline that best suits your preferences and membership loyalties. You can fly from Boulder with: Frontier Airlines, Southwest Airlines, United, American Airlines, Delta.
What is the best month to fly from Boulder?
One of the cheapest times to fly from Boulder airport(s) is January, based on the current list of flights available now. Prices on plane tickets vary considerably throughout the year due to availability and seasonal demand.
Are there any last-minute flights from Boulder?
Expedia is the place to find last-minute flights from Boulder, making it easy for you to compare prices on flights in the near future for different combinations of travel dates and from multiple airlines. We source some of the best deals for you and display some of the best offers available over the next 2 weeks.
Why book your ticket with Expedia?
Booking flights from Boulder with Expedia is the obvious choice to get low prices, save money, and see more value from every dollar spent. We show you some of the best deals happening right now and provide a vast inventory of airlines and flight routes to choose from, so you can find some of the cheapest flights from Boulder. You can customize your journey to your timeline, route preferences, budget, rewards programs, and more.
Can I change/cancel my flight?
Some flights can be changed or canceled, but fees and refunds will depend on the unique terms of your flight agreement. Airlines have different rules and restrictions for exchanging or refunding flights. For more information, go to your itinerary or visit our customer service portal. We recommend choosing flights with no change fees for the most flexibility. Filter by “Flexible change policies” to see flights with no change fees.
*Data specialists from both ARC and Expedia Group analysed ARC's global flight data to distil actionable information to help people save money on travel. While it's impossible to guarantee when to find the lowest prices, after examining the variables, we were able to observe trends. Analysis based on ARC, round-trip flight data between 1 October 2017 - 30 September 2018 for Economy and Premium cabin ATPs on a global basis.
Travel information
Flights from Boulder: Essential Travel Information
| Cheapest flight from Boulder | $66 (roundtrip) | 
|---|---|
| Best airlines to fly from Boulder | Frontier Airlines, Southwest Airlines, United, American Airlines, Delta | 
| Cheapest month to fly from Boulder | January | 
| Boulder IATA code | DEN | 
| Boulder Country/State | Colorado | 
| Airline ticket deals from Boulder | $66 - $201 | 
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- Boulder High School
- Upstart Crow Theatre Company
- Naropa University
- University of Colorado Boulder
- Boulder Museum of Contemporary Art
- Folsom Field
- Boulder Theater
- Pearl Street Mall
- CU Museum of Natural History
- Guild Theatre
- Dairy Center for the Arts
- Visit University Hill
- Scott Carpenter Park
- Fiske Planetarium
- Sommer Bausch Observatory
- Colorado Chautauqua
- North Boulder Park
- Eben G Fine Park
- Chautauqua Park
- Centennial Trailhead
- NIST Headquarters
- NOAA's Earth System Research Laboratory
- Flagstaff Mountain
- Mary Williams Fine Arts
- Valmont City Park
- Nomad Theater
- National Center for Atmospheric Research
- Car rentals near Upstart Crow Theatre Company
- Car rentals near University of Colorado Boulder
- Car rentals near Folsom Field
- Car rentals near CU Museum of Natural History
- Car rentals near University Hill
- Car rentals near The Spot Bouldering Gym
- Car rentals near NIST Headquarters
- Hertz Rental Cars in Frasier Meadows