Cheap Flights to Boulder County from $33 (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.

Thu, Nov 12 - Mon, Nov 16
LAX
Los Angeles Intl.
DEN
Denver Intl.
$61 Roundtrip, just found
$61
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Nov 12 from Los Angeles Intl. to Denver Intl., returning Mon, Nov 16, priced at $61 just found
Tue, Nov 10 - Wed, Nov 11
LAX
Los Angeles Intl.
DEN
Denver Intl.
$66 Roundtrip, found 11 hours ago
$66
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Tue, Nov 10 from Los Angeles Intl. to Denver Intl., returning Wed, Nov 11, priced at $66 found 11 hours ago
Tue, Oct 20 - Wed, Oct 21
MSP
Minneapolis - St. Paul Intl.
DEN
Denver Intl.
$66 Roundtrip, just found
$66
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Oct 20 from Minneapolis - St. Paul Intl. to Denver Intl., returning Wed, Oct 21, priced at $66 just found
Thu, Sep 17 - Thu, Sep 17
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$73 Roundtrip, found 1 hour ago
$73
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Sep 17 from Dallas-Fort Worth Intl. to Denver Intl., returning Thu, Sep 17, priced at $73 found 1 hour ago
Sat, Dec 5 - Wed, Dec 9
ATL
Hartsfield-Jackson Atlanta Intl.
DEN
Denver Intl.
$88 Roundtrip, just found
$88
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Dec 5 from Hartsfield-Jackson Atlanta Intl. to Denver Intl., returning Wed, Dec 9, priced at $88 just found
Sat, Sep 19 - Tue, Sep 29
ORD
O'Hare Intl.
DEN
Denver Intl.
$110 Roundtrip, found 16 hours ago
$110
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Sat, Sep 19 from O'Hare Intl. to Denver Intl., returning Tue, Sep 29, priced at $110 found 16 hours ago
Wed, Dec 2 - Tue, Dec 8
IAH
George Bush Intercontinental
DEN
Denver Intl.
$148 Roundtrip, found 17 hours ago
$148
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Wed, Dec 2 from George Bush Intercontinental to Denver Intl., returning Tue, Dec 8, priced at $148 found 17 hours ago
Thu, Oct 29 - Tue, Nov 3
LAX
Los Angeles Intl.
DEN
Denver Intl.
$157 Roundtrip, found 11 hours ago
$157
Roundtrip
found 11 hours ago
Select Delta flight, departing Thu, Oct 29 from Los Angeles Intl. to Denver Intl., returning Tue, Nov 3, priced at $157 found 11 hours ago
Thu, Oct 29 - Tue, Nov 3
LAX
Los Angeles Intl.
DEN
Denver Intl.
$157 Roundtrip, found 11 hours ago
$157
Roundtrip
found 11 hours ago
Select United flight, departing Thu, Oct 29 from Los Angeles Intl. to Denver Intl., returning Tue, Nov 3, priced at $157 found 11 hours ago
OriginDestinationTravel DatesFlights From*
LAXDenverNovember 12 to November 16$61
MSPDenverOctober 20 to October 21$66
PHXDenverNovember 14 to November 16$78
DFWDenverOctober 29 to November 7$78
ATLDenverDecember 5 to December 9$88
ORDDenverSeptember 26 to October 3$118
BOSDenverOctober 28 to October 31$223
PHLDenverOctober 17 to October 23$228
MIADenverOctober 27 to November 2$228
EWRDenverOctober 7 to October 14$234
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
MIADenverAugust 29 to September 5$267
PHXDenverAugust 30 to September 2$270
LAXDenverAugust 30 to September 1$287
MSPDenverAugust 29 to September 2$293
ORDDenverAugust 30 to September 3$334
TTNDenverAugust 29 to September 8$345
DFWDenverAugust 30 to September 2$345
LGADenverAugust 29 to September 2$425
BOSDenverAugust 30 to September 3$428
ATLDenverAugust 29 to September 6$476
*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

Oct 8 - Oct 14

6 night stay

Atlanta (ATL) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $960, price is now $552 per person
$552
per person
found 1 day ago
Zephyr Mountain Lodge
3.5-star property

Zephyr Mountain Lodge

Nov 23 - Nov 28

5 night stay

Dallas (DFW) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,456, price is now $834 per person
$834
per person
found 13 hours ago
The Vintage Hotel
3.0-star property

The Vintage Hotel

Nov 23 - Nov 28

5 night stay

Dallas (DFW) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,356, price is now $782 per person
$782
per person
found 13 hours ago
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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! (1,771 reviews)
"Enjoyed the historic room. Very clean and comfortable. The staff were very friendly."

Reviewed on Aug 27, 2026

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 Media Archaeology Lab are located nearby.
9.8/10 Exceptional! (361 reviews)
"The room and hotel in general were very nice, as would be expected at a new hotel that was very expensive. The pool however, was a disappointment. It is incredibly small for a hotel of this size. We were unable to find available any seating around the pool at all during our only full day. Also, the ..."

Reviewed on Aug 26, 2026

Opens in a new windowLimelight Boulder
A-Lodge Boulder

A-Lodge Boulder

3 out of 5
91 Four Mile Canyon Drive Boulder CO
Stay at this lodge in Boulder. Enjoy free WiFi, free parking, and an outdoor pool. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Pearl Street Mall and Boulder Falls are located nearby.
Opens in a new windowA-Lodge Boulder
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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
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 $61. 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 November. 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 $61. 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 $61 and $476 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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