Cheap Flights to Boulder County from $29 (2026/2027)

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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.

Sat, Feb 21 - Sat, Feb 28
ATL
Hartsfield-Jackson Atlanta Intl.
DEN
Denver Intl.
$58 Roundtrip, just found
$58
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Feb 21 from Hartsfield-Jackson Atlanta Intl. to Denver Intl., returning Sat, Feb 28, priced at $58 just found
Tue, Feb 17 - Tue, Feb 24
LAX
Los Angeles Intl.
DEN
Denver Intl.
$58 Roundtrip, just found
$58
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Feb 17 from Los Angeles Intl. to Denver Intl., returning Tue, Feb 24, priced at $58 just found
Sat, Jan 24 - Sat, Feb 7
IAH
George Bush Intercontinental
DEN
Denver Intl.
$58 Roundtrip, just found
$58
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Jan 24 from George Bush Intercontinental to Denver Intl., returning Sat, Feb 7, priced at $58 just found
Fri, Feb 6 - Sun, Feb 8
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$58 Roundtrip, just found
$58
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Feb 6 from Dallas-Fort Worth Intl. to Denver Intl., returning Sun, Feb 8, priced at $58 just found
Thu, Feb 5 - Sun, Feb 8
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$59 Roundtrip, just found
$59
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Feb 5 from Dallas-Fort Worth Intl. to Denver Intl., returning Sun, Feb 8, priced at $59 just found
Wed, Feb 11 - Thu, Feb 12
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$60 Roundtrip, found 16 hours ago
$60
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Wed, Feb 11 from Dallas-Fort Worth Intl. to Denver Intl., returning Thu, Feb 12, priced at $60 found 16 hours ago
Sat, Feb 7 - Mon, Feb 9
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$62 Roundtrip, just found
$62
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Feb 7 from Dallas-Fort Worth Intl. to Denver Intl., returning Mon, Feb 9, priced at $62 just found
Sat, Jan 24 - Tue, Feb 3
DCA
Ronald Reagan Washington National
DEN
Denver Intl.
$78 Roundtrip, found 1 hour ago
$78
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Jan 24 from Ronald Reagan Washington National to Denver Intl., returning Tue, Feb 3, priced at $78 found 1 hour ago
OriginDestinationTravel DatesFlights From*
LAXDenverJanuary 18 to January 24$58
ATLDenverFebruary 3 to February 10$58
DFWDenverJanuary 27 to February 6$58
MSPDenverJanuary 27 to February 4$58
PHXDenverJanuary 28 to February 5$58
MIADenverFebruary 5 to February 11$74
ORDDenverFebruary 6 to February 12$78
LGADenverApril 1 to April 8$92
PHLDenverFebruary 19 to February 27$128
BOSDenverFebruary 28 to March 4$151
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
LAXDenverJanuary 10 to January 17$113
JFKDenverJanuary 11 to January 18$114
MSPDenverJanuary 11 to February 2$118
PHXDenverJanuary 11 to January 18$118
ATLDenverJanuary 9 to January 21$138
DFWDenverJanuary 10 to January 13$139
ORDDenverJanuary 11 to January 17$181
BOSDenverJanuary 10 to January 17$201
PHLDenverJanuary 10 to January 14$225
MIADenverJanuary 10 to January 14$252
*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

Feb 22 - Feb 25

3 night stay

Dallas (DFW) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $332, price is now $184 per person
$184
per person
found 24 hours ago
Hyatt Vacation Club at The Ranahan
4.0-star property

Hyatt Vacation Club at The Ranahan

Feb 9 - Feb 13

4 night stay

Atlanta (ATL) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $904, price is now $485 per person
$485
per person
found 1 day ago
Hyatt Regency Denver at Colorado Convention Center
4.0-star property

Hyatt Regency Denver at Colorado Convention Center

Feb 12 - Feb 15

3 night stay

Atlanta (ATL) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $550, price is now $304 per person
$304
per person
found 1 day ago
Don't see what you're looking for?
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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 Folsom Field and Pearl Street Mall are located nearby.
9.4/10 Exceptional! (1,640 reviews)
If you're into old amazing historic hotels, this should be on your list.

Reviewed on Jan 1, 2026

Opens in a new windowHotel Boulderado
Hyatt Place Boulder/Pearl Street

Hyatt Place Boulder/Pearl Street

3 out of 5
2280 Junction Pl Boulder CO
Book a stay at this business-friendly hotel in Boulder. Enjoy free breakfast, free WiFi, and room service. Our guests praise the breakfast and the helpful staff in our reviews. Popular attractions Folsom Field and The Spot Bouldering Gym are located nearby.
8.6/10 Excellent! (1,120 reviews)
Great customer service

Reviewed on Jan 1, 2026

Opens in a new windowHyatt Place Boulder/Pearl Street
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 Folsom Field and Media Archaeology Lab are located nearby.
9.8/10 Exceptional! (84 reviews)
All was excellent!

Reviewed on Dec 29, 2025

Opens in a new windowLimelight Boulder
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La Quinta Inn & Suites by Wyndham Denver Boulder-Louisville

La Quinta Inn & Suites by Wyndham Denver Boulder-Louisville

3 out of 5
902 W Dillon Rd Louisville CO
Book a stay at this golf hotel in Louisville. Enjoy free breakfast, free WiFi, and a fitness center. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Coal Creek Golf Course and Sport Stable are located nearby.
7.8/10 Good! (1,506 reviews)
The room was nice and clean The front desk lady was very friendly and helpful with us We really enjoyed our visit to the Quinta Hotel

Reviewed on Dec 26, 2025

Opens in a new windowLa Quinta Inn & Suites by Wyndham Denver Boulder-Louisville
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 February. 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 $252 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.

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