$49 Cheap flights to Boulder County

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Top places to visit in Boulder County

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Boulder

Boulder
Moonset over Longs Peak
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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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Louisville

Louisville

Cheap flights to Boulder County from $49 One Way, $98 Round Trip

$98 return flights and $49 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.

Fri, Oct 30 - Fri, Nov 6
ORD
Chicago
DEN
Denver
$98 Roundtrip, found 15 hours ago
$98
Roundtrip
found 15 hours ago
Select Frontier Airlines flight, departing Fri, Oct 30 from Chicago to Denver, returning Fri, Nov 6, priced at $98 found 15 hours ago
Wed, Oct 21 - Sat, Oct 24
DFW
Dallas
DEN
Denver
$109 Roundtrip, found 5 days ago
$109
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Wed, Oct 21 from Dallas to Denver, returning Sat, Oct 24, priced at $109 found 5 days ago
Wed, Aug 26 - Sat, Aug 29
ORD
Chicago
DEN
Denver
$205 Roundtrip, found 5 hours ago
$205
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Aug 26 from Chicago to Denver, returning Sat, Aug 29, priced at $205 found 5 hours ago
Wed, Aug 26 - Sat, Aug 29
ORD
Chicago
DEN
Denver
$205 Roundtrip, found 5 hours ago
$205
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Wed, Aug 26 from Chicago to Denver, returning Sat, Aug 29, priced at $205 found 5 hours ago
Sat, Sep 12 - Tue, Sep 15
DAL
Dallas
DEN
Denver
$217 Roundtrip, found 7 hours ago
$217
Roundtrip
found 7 hours ago
Select Southwest Airlines flight, departing Sat, Sep 12 from Dallas to Denver, returning Tue, Sep 15, priced at $217 found 7 hours ago
Wed, Aug 26 - Sat, Aug 29
ORD
Chicago
DEN
Denver
$225 Roundtrip, found 5 hours ago
$225
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Aug 26 from Chicago to Denver, returning Sat, Aug 29, priced at $225 found 5 hours ago

Deals For This Weekend's Flights

OriginDestinationTravel DatesFlights From*
LAXDenverJune 27 to June 30$177
PHXDenverJune 26 to June 30$202
ORDDenverJune 27 to July 4$225
DFWDenverJune 26 to July 3$250
MSPDenverJune 27 to June 29$284
MIADenverJune 27 to June 30$285
PHLDenverJune 28 to July 4$302
ATLDenverJune 28 to July 3$378
EWRDenverJune 27 to June 30$378
BOSDenverJune 27 to July 6$406
*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
$284 nightly
The price is $327 total per night from Jun 28 to Jun 29
$327 total
Jun 28 - Jun 29
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! (1,755 reviews)
"."

Reviewed on Jun 22, 2026

Opens in a new windowHotel Boulderado
Limelight Boulder

Limelight Boulder

4 out of 5
1295 University Ave Boulder CO
Fully refundableReserve now, pay when you stay
$241 nightly
The price is $277 total per night from Jul 5 to Jul 6
$277 total
Jul 5 - Jul 6
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 Folsom ...
9.8/10 Exceptional! (258 reviews)
"Best hotel in boulder and perfect view of the flatirons. Great location"

Reviewed on Jun 22, 2026

Opens in a new windowLimelight Boulder
Courtyard by Marriott Boulder

Courtyard by Marriott Boulder

3 out of 5
4710 Pearl East Cir Boulder CO
Fully refundableReserve now, pay when you stay
$151 nightly
The price is $174 total per night from Jul 5 to Jul 6
$174 total
Jul 5 - Jul 6
Total with taxes and fees
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 ...
9/10 Wonderful! (1,001 reviews)
"Staff friendly and knowledgeable,grounds clean with nice flowers. Uber and Lyft drivers need to figure out how to get to your location, had alot of problems with them for pickups! Wonderful stay at your hotel!"

Reviewed on Jun 15, 2026

Opens in a new windowCourtyard by Marriott Boulder
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Hyatt Place Boulder/Pearl Street

Hyatt Place Boulder/Pearl Street

3 out of 5
2280 Junction Pl Boulder CO
Fully refundableReserve now, pay when you stay
$138 nightly
The price is $158 total per night from Jul 12 to Jul 13
$158 total
Jul 12 - Jul 13
Total with taxes and fees
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 ...
8.8/10 Excellent! (1,257 reviews)
"I really enjoyed staying here. The pull down curtain in room was broken but otherwise I’d stay here again."

Reviewed on Jun 22, 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.

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

When you plan to buy tickets for flights to Boulder County, you don’t have to look any further than Orbitz! We offer bargain rates and low fares on thousands of flights.

Reliable Customer Service

Along with our low prices, Orbitz is well known for exceptional customer care. We make it simple to find the best Boulder County flights for you. If you need to cancel your booking or change your flight plans, simply contact our Customer Service department to make any adjustments.

Bargain Tickets for Boulder County Flights

Orbitz offers deeply discounted flights to Boulder County, and we provide the resources to research your travel destination and plan your complete itinerary.

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Saving your frequent flyer miles for your flights to Boulder County? You can use Orbitz to make your budget ticket reservation for all your flights and still earn points or miles on your frequent flyer program! Just enter your program account number while you’re booking your ticket to have your points added automatically, every time you book with Orbitz.

Convenient Travel Planning Services

If you like the ease of making your travel plans on the move, you’ll love the free Orbitz apps for iPhones, iPads, and Android devices. You can use these apps to review your travel reservations or make a change to your itinerary. Orbitz also offers additional travel assistance such as free mobile alerts that keep you up-to-date about sudden changes to your upcoming flights. You can also browse Orbitz easily on your smartphone by using the mobile version of the website to find budget Boulder County flights.

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 $98 and $406 this past week. The lowest one-way ticket prices were $49, departing from Chicago (ORD).
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.