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$90+ Cheap flights from Charlotte (CLT) to Boulder, CO

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
CLT — DEN
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheapflights Tip: The best prices from Charlotte Douglas to Boulder are usually found in September or October, booked 36 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap flight deals from Charlotte to Boulder

Keep the following information in mind while searching for Charlotte to Boulder flight deals. Data was last updated March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$138
(Frontier)

One-way from

$90
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$285
Provider with most accurate pricing for Charlotte Douglas-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Charlotte Douglas-Denver Intl flights.
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From Charlotte Douglas to Boulder
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One-way flight from Charlotte Douglas to Boulder
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Highest demand for flights based on searches. 4% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Charlotte to Boulder

Cheapest flights from Charlotte to Boulder
Explore the most affordable flight options available from Charlotte to Boulder. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

This Frontier deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/105:06 pmCLT - DEN
Nonstop3h 58mFrontier
Sat 5/1710:45 amDEN - CLT
Nonstop3h 20mFrontier
Deal found 3/24$138
This American Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/177:19 pmCLT - DEN
Nonstop3h 37mAmerican Airlines
Sat 5/1711:59 pmDEN - CLT
Nonstop3h 21mAmerican Airlines
Deal found 3/25$174
This Gotogate deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2012:12 pmCLT - DEN
1 stop7h 03mMultiple Airlines
Sat 4/2610:45 amDEN - CLT
Nonstop3h 17mMultiple Airlines
Deal found 3/25$186
This United Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/54:15 pmCLT - DEN
Nonstop3h 55mUnited Airlines
Sat 5/105:29 pmDEN - CLT
Nonstop3h 16mUnited Airlines
Deal found 3/25$204
This Southwest deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/105:25 pmCLT - DEN
1 stop6h 30mSouthwest
Sat 5/176:05 pmDEN - CLT
Nonstop3h 20mSouthwest
Deal found 3/25$218
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/265:55 pmCLT - DEN
1 stop7h 45mDelta
Tue 4/2912:55 amDEN - CLT
1 stop5h 58mDelta
Deal found 3/24$237
This Sun Country Air deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1611:36 amCLT - DEN
1 stop23h 24mSun Country Air
Mon 10/2010:15 amDEN - CLT
1 stop5h 50mSun Country Air
Deal found 3/25$285

Cheapflights Fare Finder

Customize your flight search to find flights from Charlotte to Boulder that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 26, 2025.
Use the filters below to find and compare flights from Charlotte to Boulder that are best for you.

Fly from

Charlotte

Fly to

Boulder

Route

Depart

Return

Price

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Sat 5/10

5:06 pm-7:04 pm

Nonstop3h 58m

Denver Intl

Sat 5/17

10:45 am-4:05 pm

Nonstop3h 20m

$138

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Sat 5/17

7:19 pm-8:56 pm

Nonstop3h 37m

Denver Intl

Sat 5/17

11:59 pm-5:20 am

Nonstop3h 21m

$174

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Sun 4/20

12:12 pm-5:15 pm

1 stop7h 03m

Denver Intl

Sat 4/26

10:45 am-4:02 pm

Nonstop3h 17m

$186

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Mon 5/5

4:15 pm-6:10 pm

Nonstop3h 55m

Denver Intl

Sat 5/10

5:29 pm-10:45 pm

Nonstop3h 16m

$204

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Sat 5/10

5:25 pm-9:55 pm

1 stop6h 30m

Denver Intl

Sat 5/17

6:05 pm-11:25 pm

Nonstop3h 20m

$218

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Sat 4/26

6:00 am-12:22 pm

1 stop8h 22m

Denver Intl

Wed 4/30

3:10 pm-11:35 pm

1 stop6h 25m

$237

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Thu 5/29

5:40 pm-5:27 pm

1 stop25h 47m

Denver Intl

Sat 6/14

10:27 am-2:37 pm

1 stop26h 10m

$310

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Wed 4/30

4:18 pm-6:12 pm

Nonstop3h 54m

$90

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Thu 5/8

5:06 pm-7:04 pm

Nonstop3h 58m

$94

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Wed 4/16

7:35 pm-9:16 pm

Nonstop3h 41m

$100

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 14 results
1
2

Best time to book a flight from Charlotte to Boulder

Have a flexible travel schedule? Discover the best time to fly to Boulder from Charlotte with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Charlotte to Boulder

How far ahead should I book a flight from Charlotte to Boulder?

Use this chart to determine the optimal time to book a round-trip flight from Charlotte to Boulder. Price data was last updated on March 21, 2025.

Booking 36 days in advance of your planned departure date is, on average, the best time to get cheap flights from Charlotte to Boulder. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Charlotte to Boulder?

Currently, October is the cheapest month in which you can book a flight from Charlotte to Boulder (average of $197). Flying from Charlotte to Boulder in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CLT to BD9?

Find hourly flight availability from Charlotte to Boulder. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 26, 2025.

When flying from Charlotte to Boulder, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Charlotte to Boulder?

Use this chart to determine the cheapest time to fly round-trip from Charlotte to Boulder. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Charlotte to Boulder flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Boulder by month

Plan your trip to Boulder by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boulder ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Boulder when rainfall is around 0.5 in.

Temperature in Boulder by month

Plan your trip to Boulder by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boulder, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Boulder

Get insights into the airlines that provide service to Boulder. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boulder. Reviews last updated March 26, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta and United Airlines from Charlotte to Boulder to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,891 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,608 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Sun Country Air
6.9
Okay
348 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Charlotte to Boulder. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Charlotte to Boulder?

    Charlotte Douglas (CLT), located 5.7 mi from the city center, is the airport you fly out of when you book flights from Charlotte to Boulder. 5 airlines have flights from Douglas to Boulder on a regular basis. Booking flights from Charlotte Douglas to Boulder should not be difficult; the airport handles an average of 3 outbound flights to Boulder per day.

  • How popular is this Charlotte to Boulder flight route?

    Flights from Charlotte Douglas to Boulder have been viewed 150 times in the past calendar month.

  • What are the cheapest airlines to fly from Charlotte to Boulder one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $90. Users have also found prices from $94 and $100 on Frontier and American Airlines, respectively.

  • What are the most reliable airlines from Charlotte to Boulder?

    No one likes to see their flight delayed. When booking a flight from Charlotte to Boulder consider choosing Frontier (88%), United Airlines (82%) or Southwest (82%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Charlotte to Boulder?

    Looking for the cheapest flight from Charlotte to Boulder? While on average our users pay $943, our data indicates the cheapest price to be $78. The most popular route (Charlotte Douglas - Denver Intl), is priced around $179.

  • Can I find deals for flights from Charlotte to Boulder that include hotel bookings?

    Yes. In addition to deals on Charlotte to Boulder flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Charlotte to Boulder?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Charlotte to Boulder.

  • Can I find deals for business class flights from Charlotte to Boulder?

    Yes. Cheapflights offers flight deals from Charlotte to Boulder by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Charlotte to Boulder?

    Currently, October is the cheapest month in which you can book a flight from Charlotte to Boulder (average of $197). Flying from Charlotte to Boulder in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 5 airlines flying from Charlotte to Boulder

Discover the top 5 airlines that operate flights from Charlotte to Boulder. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$67Average$158FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$138Average$414FlexibilityNo cancel feeOn-time69%
DeltaCheapest$144Average$356FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$159Average$353FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$199Average$375FlexibilityNo cancel feeOn-time63%
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