$26 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 $26 One Way, $52 Round Trip

$52 return flights and $26 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, Jan 30 - Tue, Feb 2
MSP
Minneapolis
DEN
Denver
$52 Roundtrip, found 1 hour ago
$52
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Jan 30 from Minneapolis to Denver, returning Tue, Feb 2, priced at $52 found 1 hour ago
Wed, Oct 7 - Sat, Oct 10
IAH
Houston
DEN
Denver
$55 Roundtrip, found 2 hours ago
$55
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Wed, Oct 7 from Houston to Denver, returning Sat, Oct 10, priced at $55 found 2 hours ago
Wed, Oct 21 - Sat, Oct 24
DFW
Dallas
DEN
Denver
$88 Roundtrip, just found
$88
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Oct 21 from Dallas to Denver, returning Sat, Oct 24, priced at $88 just found
Sat, Jan 30 - Sat, Feb 6
ORD
Chicago
DEN
Denver
$100 Roundtrip, found 1 hour ago
$100
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Jan 30 from Chicago to Denver, returning Sat, Feb 6, priced at $100 found 1 hour ago
Thu, Apr 1 - Mon, Apr 5
MSP
Minneapolis
DEN
Denver
$147 Roundtrip, found 1 day ago
$147
Roundtrip
found 1 day ago
Select Sun Country Airlines flight, departing Thu, Apr 1 from Minneapolis to Denver, returning Mon, Apr 5, priced at $147 found 1 day ago
Wed, Nov 4 - Wed, Nov 4
MSP
Minneapolis
DEN
Denver
$154 Roundtrip, found 1 day ago
$154
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Nov 4 from Minneapolis to Denver, returning Wed, Nov 4, priced at $154 found 1 day ago
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Deals For This Weekend's Flights

OriginDestinationTravel DatesFlights From*
DFWDenverSeptember 25 to September 27$270
PHXDenverSeptember 26 to September 30$278
MSPDenverSeptember 26 to October 12$290
MIADenverSeptember 26 to September 28$320
LAXDenverSeptember 26 to September 28$326
ORDDenverSeptember 27 to October 1$360
TTNDenverSeptember 27 to September 30$389
LGADenverSeptember 26 to October 6$389
ATLDenverSeptember 27 to September 30$465
BOSDenverSeptember 26 to September 29$544
*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
$223 nightly
The price is $257 total per night from Oct 5 to Oct 6
$257 total
Oct 5 - Oct 6
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! (1,808 reviews)
"All was good!"

Reviewed on Sep 22, 2026

Opens in a new windowHotel Boulderado
Limelight Boulder

Limelight Boulder

4 out of 5
1295 University Ave Boulder CO
$349 nightly
The price is $401 total per night from Oct 19 to Oct 20
$401 total
Oct 19 - Oct 20
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
Hotel Longmont

Hotel Longmont

3 out of 5
508 3rd Ave Longmont CO
$134 nightly
The price is $151 total per night from Sep 27 to Sep 28
$151 total
Sep 27 - Sep 28
Total with taxes and fees
Stay at this hotel in Longmont. Enjoy free WiFi, breakfast (surcharge), and parking (surcharge). Popular attractions Wibby Brewing and City of Longmont Callahan ...
9.8/10 Exceptional! (75 reviews)
"Great location and an excellent property. We will definitely return the next time we come to the Longmont area."

Reviewed on Sep 22, 2026

Opens in a new windowHotel Longmont
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A-Lodge Boulder

A-Lodge Boulder

3 out of 5
91 Four Mile Canyon Drive Boulder CO
Fully refundableReserve now, pay when you stay
$139 nightly
The price is $146 total per night from Oct 11 to Oct 12
$146 total
Oct 11 - Oct 12
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 ...
8.8/10 Excellent! (1,000 reviews)
"Loved everything! The only downside was we had no hot water for showers due to a down broiler. However, ALL of the amenities were available and the stay was still fun. We were offered a discount for the inconvenience. Will be back."

Reviewed on Sep 20, 2026

Opens in a new windowA-Lodge 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.

Need a Car For After Your Flight?

Special

Choice of Supplier
  • 5 people
  • Unlimited mileage
COMMERCE CITY, USA
Choice of Supplier

$7

$83 total
found 1 day ago
Special Choice of Supplier

Midsize

Toyato Corolla
  • 5 people
  • Unlimited mileage
COMMERCE CITY, USA
Toyato Corolla

$8

$86 total
found 1 day ago
Midsize Toyato Corolla

Compact Crossover

Nissan Kicks
  • 5 people
  • Unlimited mileage
AURORA, USA
Nissan Kicks

$14

$27 total
found 1 day ago
Compact Crossover Nissan Kicks

Standard SUV

Toyota RAV4
  • 5 people
  • Unlimited mileage
Aurora, Colorado, USA
Toyota RAV4

$14

$27 total
found 1 day ago
Standard SUV Toyota RAV4

Boulder County

Orbitz uses cutting edge mobile technology to help get you the best deals on Boulder County flights. We offer guaranteed low prices on air tickets that can be combined with hotels and car rentals to save you even more money.

Find Cheap Boulder County Flights And Hotel Rooms Using Our Mobile App

Orbitz not only guarantees low prices for flights to Boulder County, we also offer Mobile Steals on our Orbitz on the Go mobile app where you can find great mobile-only deals on hotel rooms in the area.

Use the Orbitz Flight Matrix To Save Big On Car Rental

Discount flights to Boulder County can be combined with car rental to get you additional savings. Just use our Flight Matrix to see how your budget air ticket can be combined with a car rental to make your trip not only inexpensive but also more convenient.

Use Multiple Airlines To Ensure You Get The Best Deal

Orbitz allows you to use multiple airlines for flights to Boulder County. By using a combination of airlines for discount flights you are guaranteed to get the lowest fares each way and get the schedule that is most convenient for you.

Store Your Frequent Flyer Information on Orbitz For Easy Access

Booking with Orbitz will still allow you to apply miles for flights to Boulder County to your frequent flyer program. Not only that, but your frequent flyer information will be safely stored on our website, so it will be easy to access the next time you book a discount air ticket with Orbitz.

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 $52 and $544 this past week. The lowest one-way ticket prices were $26, 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.