Cheap Flights to Boulder County from $39 (2026/2027)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Jet to one of Boulder County's top cities

A street corner with a traffic light, a street sign reading "Pearl St Mall 1900", and a brick building with multiple windows.

Boulder

Flights
Boulder

How Much Does it Cost To Fly To Boulder County?

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Tue, Dec 8 - Wed, Dec 9
LAX
Los Angeles Intl.
DEN
Denver Intl.
$58 Roundtrip, found 1 hour ago
$58
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Tue, Dec 8 from Los Angeles Intl. to Denver Intl., returning Wed, Dec 9, priced at $58 found 1 hour ago
Fri, Dec 11 - Tue, Dec 15
LAX
Los Angeles Intl.
DEN
Denver Intl.
$63 Roundtrip, found 5 hours ago
$63
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Fri, Dec 11 from Los Angeles Intl. to Denver Intl., returning Tue, Dec 15, priced at $63 found 5 hours ago
Mon, Jan 11 - Mon, Jan 11
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$66 Roundtrip, found 7 hours ago
$66
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Mon, Jan 11 from Dallas-Fort Worth Intl. to Denver Intl., returning Mon, Jan 11, priced at $66 found 7 hours ago
Wed, Dec 9 - Tue, Dec 15
LAX
Los Angeles Intl.
DEN
Denver Intl.
$68 Roundtrip, found 9 hours ago
$68
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Wed, Dec 9 from Los Angeles Intl. to Denver Intl., returning Tue, Dec 15, priced at $68 found 9 hours ago
Tue, Feb 23 - Sat, Feb 27
ORD
O'Hare Intl.
DEN
Denver Intl.
$100 Roundtrip, found 5 days ago
$100
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Tue, Feb 23 from O'Hare Intl. to Denver Intl., returning Sat, Feb 27, priced at $100 found 5 days ago
Thu, Oct 29 - Fri, Oct 30
IAH
George Bush Intercontinental
DEN
Denver Intl.
$130 Roundtrip, found 22 hours ago
$130
Roundtrip
found 22 hours ago
Select Frontier Airlines flight, departing Thu, Oct 29 from George Bush Intercontinental to Denver Intl., returning Fri, Oct 30, priced at $130 found 22 hours ago
Mon, Jan 11 - Mon, Jan 11
DAL
Love Field
DEN
Denver Intl.
$157 Roundtrip, found 7 hours ago
$157
Roundtrip
found 7 hours ago
Select Southwest Airlines flight, departing Mon, Jan 11 from Love Field to Denver Intl., returning Mon, Jan 11, priced at $157 found 7 hours ago
Mon, Mar 15 - Sat, Mar 20
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$157 Roundtrip, found 6 hours ago
$157
Roundtrip
found 6 hours ago
Select United flight, departing Mon, Mar 15 from Dallas-Fort Worth Intl. to Denver Intl., returning Sat, Mar 20, priced at $157 found 6 hours ago
OriginDestinationTravel DatesFlights From*
LAXDenverDecember 8 to December 9$58
DFWDenverJanuary 11 to January 11$66
PHXDenverDecember 7 to December 10$80
MSPDenverNovember 17 to November 18$80
ATLDenverJanuary 9 to January 13$123
ORDDenverDecember 2 to December 5$138
MIADenverDecember 9 to December 15$165
LGADenverJanuary 19 to February 4$211
PHLDenverNovember 18 to November 25$219
BOSDenverNovember 17 to November 19$253
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
MSPDenverOctober 24 to October 27$194
PHXDenverOctober 25 to October 29$273
LAXDenverOctober 24 to November 3$280
ORDDenverOctober 24 to October 26$341
MIADenverOctober 24 to October 25$345
ATLDenverOctober 24 to October 25$348
PHLDenverOctober 24 to November 4$363
BOSDenverOctober 23 to October 30$416
LGADenverOctober 25 to October 30$417
DALDenverOctober 25 to October 26$426
*Prices include taxes and fees

Best Boulder County Flight and Hotel Packages

Price found within the past 48 hours. Click for updated prices.
Glenwood Springs Inn
2.0-star property

Glenwood Springs Inn

Dec 19 - Dec 22

3 night stay

Dallas (DFW) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $546, price is now $334 per person
$334
per person
found 1 day ago
Timbers & Lone Eagle by Vail Resorts
4.0-star property

Timbers & Lone Eagle by Vail Resorts

Dec 22 - Dec 29

7 night stay

Atlanta (ATL) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $6,829, price is now $3,825 per person
$3,825
per person
found 1 day ago
One Ski Hill Place, a RockResort, by Vail Resorts
4.0-star property

One Ski Hill Place, a RockResort, by Vail Resorts

Nov 12 - Nov 16

4 night stay

Atlanta (ATL) to Denver (DEN)

Frontier Airlines • Non-stop roundtrip • Coach
Save 100% on your flight
Price was $835, price is now $495 per person
$495
per person
found 1 day ago
Don't see what you're looking for?
See all available trips from Dallas to Boulder County
View all trips

Travelers ❤️ These Boulder County 🏨

Hotel Boulderado

Hotel Boulderado

4 out of 5
2115 13th St Boulder CO
Book a stay at this luxury hotel in Boulder. Enjoy free WiFi, 2 restaurants, and breakfast (surcharge). Our guests praise the restaurant and the bar in our reviews. Popular attractions Pearl Street Mall and Folsom Field are located nearby.
Opens in a new windowHotel Boulderado
Limelight Boulder

Limelight Boulder

4 out of 5
1295 University Ave Boulder CO
Book a stay at this family-friendly hotel in Boulder. Enjoy free WiFi, 2 bars/lounges, and a rooftop terrace. Popular attractions Pearl Street Mall and Folsom Field are located nearby.
9.8/10 Exceptional! (415 reviews)
"This was a perfect spot for our family to explore Boulder and RMNP. It has so many great amenities: outdoor lounge with yard games, outdoor pool, great restaurant, and walkable distance to downtown. We will definitely stay here again!"

Reviewed on Oct 14, 2026

Opens in a new windowLimelight Boulder
Hotel Longmont

Hotel Longmont

3 out of 5
508 3rd Ave Longmont CO
Stay at this hotel in Longmont. Enjoy free WiFi, breakfast (surcharge), and parking (surcharge). Popular attractions Wibby Brewing and City of Longmont Callahan House are located nearby.
9.8/10 Exceptional! (95 reviews)
"Good location, great sized rooms and well-equipped gym."

Reviewed on Oct 15, 2026

Opens in a new windowHotel Longmont
Save an average of 15% on thousands of hotels when you're signed in
Sign in
Sign up, it's free
Comfort Inn & Suites Boulder

Comfort Inn & Suites Boulder

3 out of 5
4777 North Broadway Boulder CO
Book a stay at this business-friendly hotel in Boulder. Enjoy free breakfast, free WiFi, and an outdoor pool. Our guests praise the breakfast and the helpful staff in our reviews. Popular attractions Pearl Street Mall and Folsom Field are located nearby.
Opens in a new windowComfort Inn & Suites Boulder
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

How much is the cheapest flight to Boulder County?
Based on prices found over the last seven days on Travelocity, a roundtrip flight to Boulder County was as low as $58. If you can be flexible with your dates, it's easier to land a great bargain. This price was available on Travelocity for flights to Boulder County departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly to Boulder County?
For the greatest chance at scoring an excellent flight deal, time your escape in December. Based on Travelocity's direct flight demand from January to December last year, it's the cheapest time to jet to Boulder County.
How can I check my flight status to Boulder County?
Whether you'd like to view the status of your flight to Boulder County or amend your journey, you'll find all the important info on our customer portal, Trips. Click on "Trips" at the top of our homepage, then sign in or create a new account. Another convenient way to manage all your bookings is with the Travelocity app. Get alerts about flight delays or gate changes and easily share details with any family flying with you.
How do I find the best deals on flights to Boulder County?
Being flexible with your travel dates is one way to walk away with an incredible deal. Travelocity makes it super simple to find your perfect fare through the "Flexible dates" function. First, search for your flight to Boulder County, then compare the cheapest prices for nearby dates by hitting the "Flexible dates" box above. Booking ahead of schedule and avoiding peak periods are other suggestions. In the last seven days, the cheapest price for a return flight to Boulder County was $58. This price was available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Why should I book my flight to Boulder County with Travelocity?
If you're after cheap flights to Boulder County, you'll track down some enticing deals with Travelocity. From cheap family flights with low-cost air carriers to flexible tickets, we can help with your journey. Enjoy a hassle-free break with our 24/7 Virtual Agent online chat, Price Match Guarantee and free cancellations with most hotels. Start packing your case and get ready to fly away to this interesting destination.
What are the most popular flight routes to Boulder County?
Whether you have plans for a short break or a lengthy stay, Travelocity can help you find your flight to Boulder County. The busiest flight routes to this destination include:

  • Chicago, IL (ORD-O'Hare Intl.) to Denver Intl. Airport (DEN) - 4,138 flights a month.
  • Los Angeles, CA (LAX-Los Angeles Intl.) to Denver Intl. Airport (DEN) - 3,683 flights a month.
  • Salt Lake City, UT (SLC-Salt Lake City Intl.) to Denver Intl. Airport (DEN) - 3,549 flights a month.

How much is a flight to Boulder County on average?
Plane tickets for roundtrip flights to Boulder County cost between $58 and $426 in the last seven days. As soon as you find a fantastic deal, lock it in and get ready to take off on your next big adventure with Travelocity. These prices were available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
How long is the average flight to Boulder County?
To get a feel for the average travel time of a direct flight to Boulder County, have a look at these in-demand routes:

  • Chicago, IL (ORD-O'Hare Intl.) to Denver Intl. Airport (DEN) - 2 hours and 38 minutes
  • Los Angeles, CA (LAX-Los Angeles Intl.) to Denver Intl. Airport (DEN) - 2 hours and 24 minutes
  • Salt Lake City, UT (SLC-Salt Lake City Intl.) to Denver Intl. Airport (DEN) - 1 hour and 48 minutes

What can I expect on a flight to Boulder County?
This mainly depends on where you're flying from and which airline company you go with. You'll likely find all types of flights to Boulder County, from business class journeys to cheap flights for family vacations. For long-haul flights, airlines will usually provide food and drinks, a variety of entertainment programs as well as games to keep your little ones amused.

Explore More Ways to Travel with Travelocity