Cheap Flights to Boulder County from $30 (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.

Wed, Jun 3 - Wed, Jun 10
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$56 Roundtrip, just found
$56
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Jun 3 from Dallas-Fort Worth Intl. to Denver Intl., returning Wed, Jun 10, priced at $56 just found
Thu, May 14 - Sat, May 16
IAH
George Bush Intercontinental
DEN
Denver Intl.
$58 Roundtrip, just found
$58
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, May 14 from George Bush Intercontinental to Denver Intl., returning Sat, May 16, priced at $58 just found
Sat, May 16 - Sat, May 16
IAH
George Bush Intercontinental
DEN
Denver Intl.
$61 Roundtrip, found 6 hours ago
$61
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sat, May 16 from George Bush Intercontinental to Denver Intl., returning Sat, May 16, priced at $61 found 6 hours ago
Tue, May 12 - Tue, May 12
IAH
George Bush Intercontinental
DEN
Denver Intl.
$62 Roundtrip, found 11 hours ago
$62
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Tue, May 12 from George Bush Intercontinental to Denver Intl., returning Tue, May 12, priced at $62 found 11 hours ago
Wed, May 13 - Sat, May 16
ORD
O'Hare Intl.
DEN
Denver Intl.
$62 Roundtrip, found 3 hours ago
$62
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Wed, May 13 from O'Hare Intl. to Denver Intl., returning Sat, May 16, priced at $62 found 3 hours ago
Tue, May 5 - Sat, May 16
ORD
O'Hare Intl.
DEN
Denver Intl.
$63 Roundtrip, just found
$63
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, May 5 from O'Hare Intl. to Denver Intl., returning Sat, May 16, priced at $63 just found
Tue, May 12 - Sat, May 16
DCA
Ronald Reagan Washington National
DEN
Denver Intl.
$115 Roundtrip, found 7 hours ago
$115
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Tue, May 12 from Ronald Reagan Washington National to Denver Intl., returning Sat, May 16, priced at $115 found 7 hours ago
Tue, May 19 - Wed, May 20
DAL
Love Field
DEN
Denver Intl.
$155 Roundtrip, found 10 hours ago
$155
Roundtrip
found 10 hours ago
Select Southwest Airlines flight, departing Tue, May 19 from Love Field to Denver Intl., returning Wed, May 20, priced at $155 found 10 hours ago
OriginDestinationTravel DatesFlights From*
PHXDenverMay 13 to May 16$68
DFWDenverMay 6 to May 20$68
LAXDenverMay 6 to May 20$68
PHLDenverMay 4 to May 5$68
ORDDenverMay 13 to May 16$73
MSPDenverMay 5 to May 16$86
MIADenverMay 14 to May 17$104
ATLDenverMay 19 to May 24$106
LGADenverApril 30 to May 1$163
BOSDenverMay 6 to May 10$165
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
DFWDenverApril 17 to April 23$175
PHXDenverApril 18 to April 21$209
ORDDenverApril 19 to April 22$220
LGADenverApril 19 to April 24$230
ATLDenverApril 17 to April 21$230
LAXDenverApril 18 to April 18$256
MIADenverApril 18 to April 25$261
PHLDenverApril 19 to April 24$268
MSPDenverApril 18 to April 27$278
BOSDenverApril 17 to April 21$388
*Prices include taxes and fees

Best Boulder County Flight and Hotel Packages

Price found within the past 48 hours. Click for updated prices.
Hotel Alpenrock Breckenridge, Curio Collection by Hilton
4.0-star property

Hotel Alpenrock Breckenridge, Curio Collection by Hilton

May 7 - May 12

5 night stay

Dallas (DFW) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $506, price is now $275 per person
$275
per person
found 14 hours ago
Glenwood Springs Inn
2.0-star property

Glenwood Springs Inn

May 29 - Jun 2

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 $708, price is now $390 per person
$390
per person
found 1 day ago
Mountain Retreat in Breckenridge
2.5-star property

Mountain Retreat in Breckenridge

May 23 - May 27

4 night stay

Minneapolis (MSP) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Price was $1,638, price is now $912 per person
$912
per person
found 22 hours 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 Boulder Theater are located nearby.
9.6/10 Exceptional! (1,703 reviews)
Breath stay easy to walk to campus

Reviewed on Apr 8, 2026

Opens in a new windowHotel Boulderado
Residence Inn By Marriott Boulder

Residence Inn By Marriott Boulder

3 out of 5
3030 Center Green Dr Boulder CO
Book a stay at this business-friendly hotel in Boulder. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our reviews. Popular attractions Pearl Street Mall and Ocean First Divers are located nearby.
9.2/10 Wonderful! (608 reviews)
Yes.

Reviewed on Apr 11, 2026

Opens in a new windowResidence Inn By Marriott Boulder
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 Media Archaeology Lab are located nearby.
9.8/10 Exceptional! (184 reviews)
Great experience

Reviewed on Apr 12, 2026

Opens in a new windowLimelight Boulder
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Courtyard by Marriott Boulder

Courtyard by Marriott Boulder

3 out of 5
4710 Pearl East Cir Boulder CO
Book a stay at this business-friendly hotel in Boulder. Enjoy free WiFi, breakfast (surcharge), and a fitness center. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Pearl Street Mall and The Spot Bouldering Gym are located nearby.
9/10 Wonderful! (1,008 reviews)
A microwave in the room would have been nice. The breakfast wasn’t free, but it was good and so was the service

Reviewed on Apr 12, 2026

Opens in a new windowCourtyard by Marriott 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 $56. 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 June. 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 $56. 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 $56 and $388 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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