Cheap Flights to Boulder County from $20 (2026/2027)

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Boulder

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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, Feb 23 - Sat, Feb 27
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$40 Roundtrip, found 3 hours ago
$40
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Tue, Feb 23 from Dallas-Fort Worth Intl. to Denver Intl., returning Sat, Feb 27, priced at $40 found 3 hours ago
Wed, Jan 20 - Sat, Jan 23
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$66 Roundtrip, found 2 hours ago
$66
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Wed, Jan 20 from Dallas-Fort Worth Intl. to Denver Intl., returning Sat, Jan 23, priced at $66 found 2 hours ago
Sat, Dec 5 - Mon, Dec 7
LAX
Los Angeles Intl.
DEN
Denver Intl.
$72 Roundtrip, found 2 hours ago
$72
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sat, Dec 5 from Los Angeles Intl. to Denver Intl., returning Mon, Dec 7, priced at $72 found 2 hours ago
Tue, Feb 23 - Sat, Feb 27
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$74 Roundtrip, found 3 hours ago
$74
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Tue, Feb 23 from Dallas-Fort Worth Intl. to Denver Intl., returning Sat, Feb 27, priced at $74 found 3 hours ago
Wed, Nov 4 - Wed, Nov 11
ORD
O'Hare Intl.
DEN
Denver Intl.
$80 Roundtrip, just found
$80
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Nov 4 from O'Hare Intl. to Denver Intl., returning Wed, Nov 11, priced at $80 just found
Tue, Nov 3 - Tue, Nov 10
IAH
George Bush Intercontinental
DEN
Denver Intl.
$90 Roundtrip, just found
$90
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Nov 3 from George Bush Intercontinental to Denver Intl., returning Tue, Nov 10, priced at $90 just found
Sat, Nov 7 - Mon, Nov 16
ATL
Hartsfield-Jackson Atlanta Intl.
DEN
Denver Intl.
$111 Roundtrip, found 5 days ago
$111
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Nov 7 from Hartsfield-Jackson Atlanta Intl. to Denver Intl., returning Mon, Nov 16, priced at $111 found 5 days ago
Fri, Feb 5 - Mon, Feb 8
DAL
Love Field
DEN
Denver Intl.
$132 Roundtrip, found 6 days ago
$132
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Fri, Feb 5 from Love Field to Denver Intl., returning Mon, Feb 8, priced at $132 found 6 days ago
OriginDestinationTravel DatesFlights From*
DFWDenverJanuary 20 to January 23$66
LAXDenverNovember 17 to November 18$77
ORDDenverNovember 4 to November 11$80
MSPDenverJanuary 5 to January 9$88
PHXDenverNovember 2 to November 6$88
ATLDenverNovember 11 to November 16$113
MIADenverNovember 7 to November 9$128
PHLDenverDecember 7 to December 8$140
BOSDenverJanuary 12 to January 14$189
LGADenverJanuary 19 to February 4$199
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
LAXDenverOctober 17 to October 24$215
PHXDenverOctober 18 to October 20$263
DFWDenverOctober 16 to October 18$279
MIADenverOctober 17 to October 20$293
TTNDenverOctober 17 to November 18$347
MSPDenverOctober 17 to October 19$355
ORDDenverOctober 17 to October 19$372
EWRDenverOctober 17 to October 21$454
ATLDenverOctober 18 to October 21$457
BOSDenverOctober 16 to October 24$474
*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

Nov 27 - Dec 1

4 night stay

Dallas (DFW) to Denver (DEN)

American Airlines • Coach

Denver (DEN) to Dallas (DFW)

Frontier Airlines • Coach
Save 100% on your flight
Price was $548, price is now $339 per person
$339
per person
found 1 day ago
Tivoli Lodge
4.0-star property

Tivoli Lodge

Dec 14 - Dec 19

5 night stay

Atlanta (ATL) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,266, price is now $817 per person
$817
per person
found 16 hours ago
Pine Ridge Condominiums
3.0-star property

Pine Ridge Condominiums

Dec 19 - Dec 23

4 night stay

Atlanta (ATL) to Denver (DEN)

Southwest Airlines • Coach

Denver (DEN) to Atlanta (ATL)

Frontier Airlines • Coach
Save 100% on your flight
Price was $2,036, price is now $1,353 per person
$1,353
per person
found 1 day ago
Don't see what you're looking for?
See all available trips from Dallas to Boulder County
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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 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! (409 reviews)
"Nicest staff and property. We love to stay here. Used the shuttle service which as great and had a cocktail on the patio - lovely. Only areas for improvement: our mattress was lumpy and needs replacement. The coffee bar was great but needed more attending - half and half was empty and needed refilling ..."

Reviewed on Oct 11, 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.
Opens in a new windowHotel Longmont
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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 $40. 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 $40. 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 $40 and $474 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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