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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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
CLT — DEN
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
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 April 15, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$164
(Frontier)

One-way from

$90
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$249
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. 2% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 15, 2025.

This Frontier deal was found by Cheapflights users on 4/13. 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.
Tue 4/294:52 pmCLT - DEN
Nonstop4h 08mFrontier
Sun 5/1110:45 amDEN - CLT
Nonstop3h 20mFrontier
Deal found 4/13$149
This American Airlines deal was found by Cheapflights users on 4/13. 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.
Tue 5/139:24 pmCLT - DEN
Nonstop3h 35mAmerican Airlines
Tue 5/206:15 amDEN - CLT
Nonstop3h 19mAmerican Airlines
Deal found 4/13$179
This United Airlines deal was found by Cheapflights users on 4/14. 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.
Tue 5/134:15 pmCLT - DEN
Nonstop3h 55mUnited Airlines
Sat 5/175:29 pmDEN - CLT
Nonstop3h 16mUnited Airlines
Deal found 4/14$189
This Priceline deal was found by Cheapflights users on 4/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/155:06 pmCLT - DEN
Nonstop3h 58mMultiple Airlines
Fri 5/169:00 amDEN - CLT
1 stop6h 42mMultiple Airlines
Deal found 4/15$191
This Sun Country Air deal was found by Cheapflights users on 4/14. 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.
Mon 5/126:40 pmCLT - DEN
1 stop18h 50mSun Country Air
Thu 5/156:30 pmDEN - CLT
1 stop21h 12mSun Country Air
Deal found 4/14$205
This Southwest deal was found by Cheapflights users on 4/13. 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.
Wed 5/213:25 pmCLT - DEN
Nonstop3h 45mSouthwest
Sun 5/258:00 amDEN - CLT
1 stop10h 40mSouthwest
Deal found 4/13$229
This Delta deal was found by Cheapflights users on 4/14. 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.
Wed 5/2111:35 amCLT - DEN
1 stop5h 59mDelta
Fri 5/3012:55 amDEN - CLT
1 stop5h 58mDelta
Deal found 4/14$237

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 April 15, 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

Tue 4/29

4:52 pm-7:00 pm

Nonstop4h 08m

Denver Intl

Sun 5/11

10:45 am-4:05 pm

Nonstop3h 20m

$149

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Tue 5/13

9:24 pm-10:59 pm

Nonstop3h 35m

Denver Intl

Tue 5/20

6:15 am-11:34 am

Nonstop3h 19m

$179

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Tue 5/13

4:15 pm-6:10 pm

Nonstop3h 55m

Denver Intl

Sat 5/17

5:29 pm-10:45 pm

Nonstop3h 16m

$189

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Thu 5/15

5:06 pm-7:04 pm

Nonstop3h 58m

Denver Intl

Fri 5/16

9:00 am-5:42 pm

1 stop6h 42m

$191

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Mon 5/12

6:40 pm-11:30 am

1 stop18h 50m

Denver Intl

Thu 5/15

6:30 pm-5:42 pm

1 stop21h 12m

$205

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Wed 5/21

3:25 pm-5:10 pm

Nonstop3h 45m

Denver Intl

Sun 5/25

8:00 am-8:40 pm

1 stop10h 40m

$229

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Wed 5/21

11:35 am-3:34 pm

1 stop5h 59m

Denver Intl

Sat 5/31

2:35 pm-11:31 pm

1 stop6h 56m

$237

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Mon 5/12

6:40 pm-11:30 am

1 stop18h 50m

$98

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Sat 5/24

4:17 pm-6:03 pm

Nonstop3h 46m

$99

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Wed 6/4

7:30 pm-9:07 pm

Nonstop3h 37m

$100

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

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 April 11, 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 April 15, 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.

Weekly flight availability from Charlotte to Boulder

Explore weekly flight availability from Charlotte to Boulder. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 15, 2025.

The most flights from CLT to BD9 are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).

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 April 15, 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
8.0
Very good
4,279 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Overall

8.0

Crew

8.6

Food

7.1

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
8.0
Very good
4,279 reviews
Southwest
8.0
Very good
4,279 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Overall

8.0

Crew

8.6

Food

7.1

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
7,918 reviews
Southwest
8.0
Very good
4,279 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Overall

8.0

Crew

8.6

Food

7.1

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
8,658 reviews
Southwest
8.0
Very good
4,279 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Overall

8.0

Crew

8.6

Food

7.1

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
8.0
Very good
4,279 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Overall

8.0

Crew

8.6

Food

7.1

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
349 reviews
Southwest
8.0
Very good
4,279 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Overall

8.0

Crew

8.6

Food

7.1

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 7 outbound flights to Boulder per day.

  • How popular is this Charlotte to Boulder flight route?

    Flights from Charlotte Douglas to Boulder have been viewed 136 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 American Airlines. According to our data, you can fly for as low as $90. Users have also found prices from $98 and $99 on Sun Country Air and United 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 Sun Country Air (100%), United Airlines (85%) or Frontier (83%) 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 $622, our data indicates the cheapest price to be $98. The most popular route (Charlotte Douglas - Denver Intl), is priced around $166.

  • 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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$66Average$160FlexibilityNo cancel feeOn-time62%
DeltaCheapest$138Average$354FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$138Average$401FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$159Average$350FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$192Average$374FlexibilityNo cancel feeOn-time63%

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