$33 Cheap flights to Boulder County

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Top places to visit in Boulder County

A street corner with a traffic light, a street sign reading "Pearl St Mall 1900", and a brick building with multiple windows.
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Boulder

Boulder
A snow-capped mountain range with a visible moon in the sky.
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Longmont

Longmont
A historic stone building with a reflection in calm water, surrounded by a fence and trees.
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FlightsFlights

Louisville

Louisville

Cheap flights to Boulder County from $33 One Way, $66 Round Trip

$66 return flights and $33 one-way flights to Boulder County were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Nov 7 - Sat, Nov 14
MSP
Minneapolis
DEN
Denver
$66 Roundtrip, just found
$66
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Nov 7 from Minneapolis to Denver, returning Sat, Nov 14, priced at $66 just found
Fri, Sep 11 - Sun, Sep 13
DFW
Dallas
DEN
Denver
$128 Roundtrip, just found
$128
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Sep 11 from Dallas to Denver, returning Sun, Sep 13, priced at $128 just found
Sat, Oct 10 - Tue, Oct 13
ORD
Chicago
DEN
Denver
$133 Roundtrip, found 1 hour ago
$133
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Oct 10 from Chicago to Denver, returning Tue, Oct 13, priced at $133 found 1 hour ago
Thu, Nov 5 - Sat, Nov 7
MSP
Minneapolis
DEN
Denver
$147 Roundtrip, just found
$147
Roundtrip
just found
Select Sun Country Airlines flight, departing Thu, Nov 5 from Minneapolis to Denver, returning Sat, Nov 7, priced at $147 just found
Sat, Nov 7 - Sat, Nov 14
MSP
Minneapolis
DEN
Denver
$157 Roundtrip, just found
$157
Roundtrip
just found
Select United flight, departing Sat, Nov 7 from Minneapolis to Denver, returning Sat, Nov 14, priced at $157 just found
Sat, Nov 7 - Sat, Nov 14
MSP
Minneapolis
DEN
Denver
$157 Roundtrip, just found
$157
Roundtrip
just found
Select Southwest Airlines flight, departing Sat, Nov 7 from Minneapolis to Denver, returning Sat, Nov 14, priced at $157 just found

Deals For This Weekend's Flights

OriginDestinationTravel DatesFlights From*
PHXDenverAugust 8 to August 9$283
DFWDenverAugust 8 to August 9$291
MSPDenverAugust 9 to August 10$302
MIADenverAugust 8 to August 12$308
LAXDenverAugust 9 to August 10$316
ORDDenverAugust 8 to August 13$339
TTNDenverAugust 9 to August 11$356
ATLDenverAugust 8 to August 8$365
BOSDenverAugust 8 to August 12$392
LGADenverAugust 8 to August 25$500
*Prices include taxes and fees

Find The Perfect Hotel For After Your Flight

Score Epic Boulder County Accommodation Deals

Hotel Boulderado

Hotel Boulderado

4 out of 5
2115 13th St Boulder CO
Fully refundableReserve now, pay when you stay
$216 nightly
The price is $248 total per night from Aug 31 to Sep 1
$248 total
Aug 31 - Sep 1
Total with taxes and fees
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. ...
9.6/10 Exceptional! (1,774 reviews)
"The room was welcoming and quiet. A refreshing change from how bustling the Boulder downtown can be."

Reviewed on Aug 5, 2026

Opens in a new windowHotel Boulderado
Limelight Boulder

Limelight Boulder

4 out of 5
1295 University Ave Boulder CO
$329 nightly
The price is $378 total per night from Aug 23 to Aug 24
$378 total
Aug 23 - Aug 24
Total with taxes and fees
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 ...
Opens in a new windowLimelight Boulder
A-Lodge Boulder

A-Lodge Boulder

3 out of 5
91 Four Mile Canyon Drive Boulder CO
Fully refundableReserve now, pay when you stay
$165 nightly
The price is $173 total per night from Aug 24 to Aug 25
$173 total
Aug 24 - Aug 25
Total with taxes and fees
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 ...
9/10 Wonderful! (1,002 reviews)
"Relaxing location. Quiet spot just minutes from town. Would stay again and for longer"

Reviewed on Aug 6, 2026

Opens in a new windowA-Lodge Boulder
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Moxy Boulder University

Moxy Boulder University

4 out of 5
1247 Pleasant Street Boulder CO
Fully refundableReserve now, pay when you stay
$155 nightly
The price is $178 total per night from Aug 30 to Aug 31
$178 total
Aug 30 - Aug 31
Total with taxes and fees
Stay at this hotel in Boulder. Enjoy free WiFi, a rooftop terrace, and breakfast (surcharge). Popular attractions Pearl Street Mall and Fox Theater are located ...
9.2/10 Wonderful! (432 reviews)
"My room was ridiculous. I booked a king and was given a room with two double beds head to head and 4 ft on one side of any livable space and one tiny desk space. Cleaning service missed a day. TV didn't work along with other things in the room. The front desk staff were incompetent and aloof. Community ..."

Reviewed on Aug 5, 2026

Opens in a new windowMoxy Boulder University
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.

Need a Car For After Your Flight?

Economy

Chevrolet Spark
  • 4 people
Chevrolet Spark
Economy Chevrolet Spark

Compact

Ford Focus
  • 4 people
Ford Focus
Compact Ford Focus

Midsize

Toyota Corolla
  • 5 people
Toyota Corolla
Midsize Toyota Corolla

SUV

Jeep Compass
  • 5 people
Jeep Compass
SUV Jeep Compass

Boulder County

Start your search for cheap flights to Boulder County on Orbitz. Orbitz is where you will discover guaranteed low prices on Boulder County flights, as well as all of the following conveniences:

Travel Updates on Your Mobile Device

Orbitz offers cutting-edge mobile tools for your smartphone. Whether you own an iPhone or an Android phone, you can benefit from Orbitz’s flight status updates and even book your future Boulder County flights. You can also review and reserve hotel rooms for when your Boulder County flights land and see other special offers.

Low Prices Guaranteed on Flights to Boulder County

Orbitz offers large discounts on a wide range of Boulder County flights. Through our easy-to-use site, you can find, plan, and reserve your desired flights to Boulder County while taking advantage of the lowest fares around.

Customer Care When You Need It

Orbitz is dedicated to making your flight booking experience as stress-free as possible. If you need to cancel your reservation, you can do so at your own convenience by going to the Orbitz website. If you need to change your flights to Boulder County to another time or date, you can contact our customer service representatives by phone, and they help you make the flight adjustments you need.

Loyalty Program Participation Opportunities

Orbitz lets you add your loyalty or frequent flyer account numbers when you book qualifying flights to Boulder County. So don’t worry about missing out on earning miles or points simply because you aren’t booking with the airline directly. You can save on your flights, and rack up miles too.

Frequently asked questions

Which airlines fly to Boulder County?
With 12 airlines waiting to spirit you away to Boulder County, finding a suitable flight will be a breeze. Book your fare with one of these top carriers that offer services to Denver Intl. Airport (DEN):

  • United Airlines - 269 flights to Boulder County per month
  • Southwest Airlines - 88 flights to Boulder County per month
  • Air Canada - 83 flights to Boulder County per month

How much is a flight to Boulder County?
If you're searching for flights back and forth, airfares ranged between $66 and $500 this past week. The lowest one-way ticket prices were $33, departing from Minneapolis (MSP).
How to book the cheapest flight to Boulder County?
With Orbitz, you'll find some of the most amazing flight deals around from a big range of airlines. But if you'd like to increase your chances of landing cheap flights to Boulder County, here are some suggestions we think will help:

  • Taking off from or arriving at other airports can sometimes be cheaper. Enter your preferred departure and arrival airports. Next, select the 'Nearby airports' function below to explore your options.
  • Also, click on the 'Show flexible dates' link to bring up the prices for days around your chosen departure. It's possible to score cheaper flight deals if you're flexible with your schedule.
  • To filter your results, hit 'Show options.' You can search based on airlines, seating class, nonstop flights and refundable flights. You can also choose your preferred flight times under 'Sort & Filter' to the left.
  • The early bird catches the best deals, so purchase your seats once you've settled on your travel dates. The most affordable airfares sell like hotcakes and prices normally climb as the departure date nears.
  • Bundle your flights, hotels and car rental into an impressive package deal. Save your money for things that really excite you, like discovering every corner of Boulder County.
  • Don't travel during peak seasons if possible. By avoiding summer and school vacations, you can make superb savings on your airfares.

What is the best time to book a flight to Boulder County?
Book your flights to Boulder County in January. This is the perfect time of the year for low prices, followed by February and August. Find cheap flights and make your dream journey a reality with Orbitz.
What day of the week is the cheapest to book a flight to Boulder County?
Get a great flight deal by booking on a Tuesday, Wednesday or Saturday. Typically, these are the best days to pick up cheap fares to Boulder County.
What is the cheapest day of the week to fly to Boulder County?
You can land cheap flights to Boulder County by flying out on a Monday, according to Orbitz data from 2020. Tuesday is also more affordable, while Saturday has the most expensive ticket prices. Whether you prefer to save cash or take off on any day that's convenient, you'll always find a terrific deal with Orbitz.
What is the cheapest month to fly to Boulder County?
To score cheap flights to Boulder County, you should depart in August. If getting a great deal on your ticket is your number one priority, Orbitz data has found that this is generally an excellent month to travel. June is when airfares are the most expensive.
Which airlines allow free cancellation?
Plans change, and your ticket should be able to do the same. That's why Orbitz makes it a cinch to search for flights with no change fees and free cancellation. Just enter your departure and arrival destinations and then select "Filter by flexible change policies." How's that for fuss-free?
What do I need for the flight to Boulder County?
Nothing's more fun than flying somewhere new, but it pays to be prepared. These top tips will help get your trip off to a smooth start:

  • Before you step foot on the plane, you'll need to show some form of government-issued ID, like a passport. You'll also need your boarding pass. If you're traveling with children, check with your airline about which documents they may need.
  • To keep you entertained on the short trip to Boulder County, download some new music or restock the audiobook library on your phone. Food can also be a good distraction while in the air, so maybe even bring some snacks.
  • It can get cool on the plane. If you'd prefer not to shiver your way through the flight, wear an extra layer of clothes.

How do I get cheap first-class/business deals to Boulder County?
There are ways of booking first or business-class fares to Boulder County that won't burn through your wallet. Pick up a seat at the front of the plane for less with these great tips:

  • Be flexible with your travel dates and hold out for huge sales on first or business-class airfares.
  • Many low-cost carriers nowadays have terrific business-class seating for a wallet-friendly price.
  • Bid for an upgrade in online auctions (if available) or upgrade your seat with points earned through loyalty programs.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.