Boulder

$106+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
CLT — DEN
Jun 20 — Jun 271
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Cheapflights Tip: The best prices from Charlotte Douglas to Boulder are usually found in February or January, booked 86 days in advance, depart on a Thursday or Friday and return on a Thursday

Cheap 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 May 21, 2026.

This Frontier deal was found by Cheapflights users on 5/16. 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.
Mon 7/135:57 pm
CLT
-
DEN
1 stop8h 00m
Frontier
Wed 7/293:56 pm
DEN
-
CLT
Nonstop3h 27m
Frontier
Deal found 5/16$253
This Cheapflightsfares deal was found by Cheapflights users on 5/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/310:14 pm
CLT
-
DEN
Nonstop3h 44m
Frontier
Wed 8/1211:49 pm
DEN
-
CLT
1 stop9h 40m
Frontier
Deal found 5/16$257
This Frontier deal was found by Cheapflights users on 5/16. 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 6/2710:14 pm
CLT
-
DEN
Nonstop4h 02m
Frontier
Wed 7/13:56 pm
DEN
-
CLT
Nonstop3h 29m
Frontier
Deal found 5/16$258
This Priceline deal was found by Cheapflights users on 5/16. 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.
Wed 8/1212:01 pm
CLT
-
DEN
1 stop10h 31m
Frontier
Sun 8/1612:59 pm
DEN
-
CLT
Nonstop3h 19m
Frontier
Deal found 5/16$259
This Cheapflightsfares deal was found by Cheapflights users on 5/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/110:14 pm
CLT
-
DEN
Nonstop3h 44m
Frontier
Sun 8/912:59 pm
DEN
-
CLT
Nonstop3h 19m
Frontier
Deal found 5/17$260
This Cheapflightsfares deal was found by Cheapflights users on 5/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/58:02 pm
CLT
-
DEN
1 stop21h 16m
Frontier
Sat 7/119:06 pm
DEN
-
CLT
1 stop13h 23m
Frontier
Deal found 5/17$261
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/3010:01 am
CLT
-
DEN
1 stop11h 57m
Frontier
Sun 7/56:05 am
DEN
-
CLT
1 stop9h 41m
Frontier
Deal found 5/18$263
This Frontier deal was found by Cheapflights users on 5/18. 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.
Thu 7/167:14 pm
CLT
-
DEN
Nonstop3h 51m
Frontier
Sat 7/183:56 pm
DEN
-
CLT
Nonstop3h 27m
Frontier
Deal found 5/18$264
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/293:52 pm
CLT
-
DEN
1 stop9h 07m
Frontier
Mon 7/611:40 pm
DEN
-
CLT
1 stop15h 32m
Frontier
Deal found 5/18$265
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:52 pm
CLT
-
DEN
1 stop9h 07m
Frontier
Mon 7/65:34 pm
DEN
-
CLT
1 stop16h 55m
Frontier
Deal found 5/18$266
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/263:52 pm
CLT
-
DEN
1 stop9h 07m
Frontier
Sun 7/56:05 am
DEN
-
CLT
1 stop9h 41m
Frontier
Deal found 5/18$267

Find flight deals from Charlotte to Boulder

Keep the following information in mind while searching for Charlotte to Boulder flight deals. Data was last updated May 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$253
(Frontier)

One-way from

$106
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$348
Provider with most accurate pricing for Charlotte Douglas-Denver Intl flight deals.
Provider most trusted by Cheapflights users for Charlotte Douglas-Denver Intl flights.
From Charlotte Douglas to Boulder
One-way flight from Charlotte Douglas to Boulder
Highest demand for flights based on searches. 17% potential increase in price ($57 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in May 2026

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 May 21, 2026.
Use the filters below to find and compare flights from Charlotte to Boulder that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Tue 7/7

1:25 pm-5:20 pm

1 stop5h 55m

Denver Intl

Wed 7/15

5:40 am-12:40 pm

1 stop5h 00m

$331

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Tue 6/2

11:26 am-3:36 pm

1 stop6h 10m

Denver Intl

Sun 6/14

12:40 am-8:53 am

1 stop6h 13m

$351

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Wed 6/10

7:50 am-2:55 pm

2 stops9h 05m

Denver Intl

Tue 6/23

6:15 am-3:40 pm

1 stop7h 25m

$357

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Tue 7/28

8:20 am-3:00 pm

2 stops8h 40m

Denver Intl

Sat 8/1

12:05 pm-8:45 pm

2 stops6h 40m

$361

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Sun 5/24

7:15 am-3:10 pm

2 stops9h 55m

Denver Intl

Tue 5/26

10:55 am-8:45 pm

2 stops7h 50m

$362

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Mon 7/27

4:00 pm-10:55 pm

2 stops8h 55m

Denver Intl

Thu 7/30

5:45 am-12:35 pm

1 stop4h 50m

$364

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Wed 6/10

1:25 pm-5:20 pm

1 stop5h 55m

Denver Intl

Tue 6/16

7:20 am-5:50 pm

2 stops8h 30m

$369

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Fri 8/7

7:40 am-6:15 pm

2 stops12h 35m

Denver Intl

Tue 8/11

11:15 am-9:10 pm

2 stops7h 55m

$370

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Sat 6/20

6:35 am-1:35 pm

2 stops9h 00m

Denver Intl

Thu 7/2

5:30 am-3:25 pm

1 stop7h 55m

$387

CharlotteDenver

CLT - DEN

CLTDEN

Charlotte Douglas

Tue 7/7

6:50 am-12:45 pm

2 stops7h 55m

Denver Intl

Thu 7/9

7:40 am-4:00 pm

2 stops6h 20m

$391

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/16

Showing 1-10 of 24 resultsSorted by cheapest first
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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

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 May 21, 2026.

It’s typically best to fly out from Charlotte to Boulder in the evening. Doing so could potentially save you 37% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from Charlotte to Boulder?

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 May 16, 2026.

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 mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 May 21, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Charlotte to Boulder. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.9

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Overall

7.9

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Overall

7.9

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Overall

7.9

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Overall

7.9

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Overall

7.9

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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. 7 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 2 outbound flights to Boulder per day.

  • How popular is this Charlotte to Boulder flight route?

  • How long is the flight from Charlotte to Boulder?

    There are many flights that can get you from Charlotte to Boulder in 5h 55m. Fly via Southwest or Delta to get the fastest option. There are 1334 mi between Charlotte and Boulder. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $64. Users have also found prices from $89 and $89 on Southwest 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 SkyWest Airlines (100%), Frontier (92%) or Volaris (92%) 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 $821, our data indicates the cheapest price to be $109. The most popular route (Charlotte Douglas - Denver Intl), is priced around $257.

  • 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.

See more FAQs

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Top 7 airlines flying from Charlotte to Boulder

Discover the top 7 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 May 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$75Average$198FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$113Average$257FlexibilityNo cancel feeOn-time83%
DeltaCheapest$118Average$348FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$146Average$377FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$177Average$371FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$177Average$353FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$281Average$396FlexibilityNo cancel feeOn-time62%

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