Cheap Flights to Boulder County from $28 (2026/2027)

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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.

Wed, Aug 5 - Sat, Aug 8
AUS
Austin-Bergstrom Intl.
DEN
Denver Intl.
$56 Roundtrip, found 1 hour ago
$56
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Wed, Aug 5 from Austin-Bergstrom Intl. to Denver Intl., returning Sat, Aug 8, priced at $56 found 1 hour ago
Fri, Aug 7 - Fri, Aug 7
AUS
Austin-Bergstrom Intl.
DEN
Denver Intl.
$62 Roundtrip, just found
$62
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Aug 7 from Austin-Bergstrom Intl. to Denver Intl., returning Fri, Aug 7, priced at $62 just found
Tue, Aug 4 - Tue, Aug 11
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$64 Roundtrip, found 1 hour ago
$64
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Tue, Aug 4 from Dallas-Fort Worth Intl. to Denver Intl., returning Tue, Aug 11, priced at $64 found 1 hour ago
Tue, Sep 29 - Tue, Sep 29
LAX
Los Angeles Intl.
DEN
Denver Intl.
$76 Roundtrip, just found
$76
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Sep 29 from Los Angeles Intl. to Denver Intl., returning Tue, Sep 29, priced at $76 just found
Wed, Sep 9 - Mon, Sep 14
ORD
O'Hare Intl.
DEN
Denver Intl.
$76 Roundtrip, just found
$76
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Sep 9 from O'Hare Intl. to Denver Intl., returning Mon, Sep 14, priced at $76 just found
Wed, Sep 30 - Sat, Oct 3
MSP
Minneapolis - St. Paul Intl.
DEN
Denver Intl.
$82 Roundtrip, just found
$82
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Sep 30 from Minneapolis - St. Paul Intl. to Denver Intl., returning Sat, Oct 3, priced at $82 just found
Wed, Aug 5 - Sat, Aug 8
AUS
Austin-Bergstrom Intl.
DEN
Denver Intl.
$147 Roundtrip, found 1 hour ago
$147
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Aug 5 from Austin-Bergstrom Intl. to Denver Intl., returning Sat, Aug 8, priced at $147 found 1 hour ago
Sat, Oct 3 - Mon, Oct 5
AUS
Austin-Bergstrom Intl.
DEN
Denver Intl.
$147 Roundtrip, found 1 hour ago
$147
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Sat, Oct 3 from Austin-Bergstrom Intl. to Denver Intl., returning Mon, Oct 5, priced at $147 found 1 hour ago
OriginDestinationTravel DatesFlights From*
PHXDenverSeptember 30 to October 7$64
DFWDenverAugust 19 to August 19$70
LAXDenverSeptember 17 to September 22$76
ORDDenverSeptember 9 to September 15$76
MSPDenverSeptember 1 to September 2$84
ATLDenverOctober 20 to October 31$104
PHLDenverOctober 14 to October 20$104
BOSDenverOctober 1 to October 5$119
MIADenverSeptember 21 to September 22$177
JFKDenverOctober 22 to October 22$196
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
MSPDenverJuly 18 to July 19$183
PHXDenverJuly 18 to July 25$233
ORDDenverJuly 19 to August 24$251
LAXDenverJuly 18 to July 25$274
TTNDenverJuly 18 to August 22$293
DFWDenverJuly 19 to July 21$311
EWRDenverJuly 18 to July 25$312
BOSDenverJuly 17 to July 25$325
MIADenverJuly 18 to July 22$336
ATLDenverJuly 17 to July 27$350
*Prices include taxes and fees

Best Boulder County Flight and Hotel Packages

Price found within the past 48 hours. Click for updated prices.
The Green Mountain Falls Lodge
3.0-star property

The Green Mountain Falls Lodge

Aug 11 - Aug 18

7 night stay

Dallas (DFW) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Price was $711, price is now $373 per person
$373
per person
found 1 day ago
Glenwood Springs Inn
2.0-star property

Glenwood Springs Inn

Sep 4 - Sep 7

3 night stay

Dallas (DFW) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $765, price is now $408 per person
$408
per person
found 10 hours ago
The Brown Palace Hotel and Spa, Autograph Collection
4.5-star property

The Brown Palace Hotel and Spa, Autograph Collection

Sep 23 - Sep 28

5 night stay

Dallas (DFW) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,070, price is now $609 per person
$609
per person
found 1 day ago
Don't see what you're looking for?
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Travelers ❤️ These Boulder County 🏨

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! (286 reviews)
"Great place"

Reviewed on Jul 9, 2026

Opens in a new windowLimelight Boulder
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.
9.6/10 Exceptional! (1,759 reviews)
"Great room. Great location. Great food & beverage options around there. We will definitely come back."

Reviewed on Jul 9, 2026

Opens in a new windowHotel Boulderado
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.
8.6/10 Excellent! (970 reviews)
"Very nice stay!"

Reviewed on Jul 9, 2026

Opens in a new windowComfort Inn & Suites 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 Folsom Field and Pearl Street Mall are located nearby.
9/10 Wonderful! (1,003 reviews)
"Nice area, felt safe. I was told we had free breakfast and then told we did not because we booked on Expedia and got a great rate. I am an awards member. I will stay somewhere else next time"

Reviewed on Jul 6, 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 August. 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 $350 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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