Cheap Flights to Boulder County from $35 (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.

Tue, Oct 27 - Tue, Oct 27
LAX
Los Angeles Intl.
DEN
Denver Intl.
$71 Roundtrip, found 5 hours ago
$71
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Tue, Oct 27 from Los Angeles Intl. to Denver Intl., returning Tue, Oct 27, priced at $71 found 5 hours ago
Wed, Jul 8 - Wed, Jul 15
LAX
Los Angeles Intl.
DEN
Denver Intl.
$76 Roundtrip, found 3 hours ago
$76
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Wed, Jul 8 from Los Angeles Intl. to Denver Intl., returning Wed, Jul 15, priced at $76 found 3 hours ago
Tue, Aug 11 - Wed, Aug 19
LAX
Los Angeles Intl.
DEN
Denver Intl.
$80 Roundtrip, found 16 hours ago
$80
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Tue, Aug 11 from Los Angeles Intl. to Denver Intl., returning Wed, Aug 19, priced at $80 found 16 hours ago
Tue, Aug 18 - Tue, Aug 18
LAX
Los Angeles Intl.
DEN
Denver Intl.
$84 Roundtrip, found 4 hours ago
$84
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Tue, Aug 18 from Los Angeles Intl. to Denver Intl., returning Tue, Aug 18, priced at $84 found 4 hours ago
Wed, Jul 15 - Wed, Jul 22
LAX
Los Angeles Intl.
DEN
Denver Intl.
$86 Roundtrip, just found
$86
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Jul 15 from Los Angeles Intl. to Denver Intl., returning Wed, Jul 22, priced at $86 just found
Mon, Oct 5 - Wed, Oct 7
ORD
O'Hare Intl.
DEN
Denver Intl.
$98 Roundtrip, found 5 days ago
$98
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Mon, Oct 5 from O'Hare Intl. to Denver Intl., returning Wed, Oct 7, priced at $98 found 5 days ago
Wed, Sep 16 - Wed, Sep 16
LAX
Los Angeles Intl.
DEN
Denver Intl.
$137 Roundtrip, found 3 days ago
$137
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Wed, Sep 16 from Los Angeles Intl. to Denver Intl., returning Wed, Sep 16, priced at $137 found 3 days ago
Wed, Sep 16 - Wed, Sep 16
LAX
Los Angeles Intl.
DEN
Denver Intl.
$137 Roundtrip, found 3 days ago
$137
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 16 from Los Angeles Intl. to Denver Intl., returning Wed, Sep 16, priced at $137 found 3 days ago
Wed, Aug 19 - Tue, Aug 25
EWR
Newark Liberty Intl. Airport
DEN
Denver Intl.
$240 Roundtrip, found 7 hours ago
$240
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Wed, Aug 19 from Newark Liberty Intl. Airport to Denver Intl., returning Tue, Aug 25, priced at $240 found 7 hours ago
OriginDestinationTravel DatesFlights From*
LAXDenverAugust 18 to August 18$84
PHXDenverJuly 19 to July 22$117
DFWDenverJune 30 to July 4$142
ORDDenverAugust 11 to August 18$148
MSPDenverAugust 24 to September 1$167
BOSDenverJune 12 to June 18$183
ATLDenverJuly 29 to July 29$203
MIADenverAugust 25 to August 29$238
EWRDenverAugust 20 to August 26$250
PHLDenverSeptember 1 to September 6$253
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
PHXDenverMay 29 to June 2$196
LAXDenverMay 29 to May 30$221
MSPDenverMay 31 to June 1$284
ORDDenverMay 29 to May 31$318
MIADenverMay 30 to June 2$323
LGADenverMay 30 to June 10$324
BOSDenverMay 31 to June 4$385
DALDenverMay 29 to May 31$386
ATLDenverMay 29 to June 1$408
TTNDenverMay 31 to June 13$430
*Prices include taxes and fees

Best Boulder County Flight and Hotel Packages

Price found within the past 48 hours. Click for updated prices.
The Residences at Main Street Station, Breckenridge
4.0-star property

The Residences at Main Street Station, Breckenridge

Jul 15 - Jul 19

4 night stay

Dallas (DFW) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $910, price is now $573 per person
$573
per person
found 1 day ago
Hyatt Vacation Club at The Ranahan
4.0-star property

Hyatt Vacation Club at The Ranahan

Jul 13 - Jul 18

5 night stay

Dallas (DFW) to Denver (DEN)

Southwest Airlines • Coach

Denver (DEN) to Dallas (DFW)

Frontier Airlines • Coach
Save 100% on your flight
Price was $993, price is now $629 per person
$629
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.
9.6/10 Exceptional! (1,746 reviews)
"I have never stayed at a nicer, cleaner or more friendly hotel! Loved it!"

Reviewed on May 25, 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! (929 reviews)
"Overall it was a good stay. The bed linens were dirty the first day in our room. The management and staff however were very prompt in fixing the issue. Staff were very friendly and check with guests every morning on how they were doing. Breakfast was good and the rooms were cleaned every day with ..."

Reviewed on May 24, 2026

Opens in a new windowComfort Inn & Suites 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 Folsom Field are located nearby.
9.8/10 Exceptional! (229 reviews)
"Service at the restaurant (Ajax) and hotel was extremely poor. Tried calling the front desk and housekeeping multiple times and calls were not answered. Would not stay here again."

Reviewed on May 25, 2026

Opens in a new windowLimelight Boulder
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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 Pearl Street Mall are located nearby.
8.8/10 Excellent! (1,249 reviews)
"Front desk is very helpful and friendly. Rooms clean and spacious. Highly recommend!"

Reviewed on May 24, 2026

Opens in a new windowHyatt Place Boulder/Pearl Street
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 $71. 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 October. 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 $71. 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 $71 and $430 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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