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$55+ Cheap flights from Dallas/Fort Worth (DFW) 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — DEN
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheapflights Tip: The best prices from Dallas/Fort Worth to Boulder are usually found in February or January, booked 76 days in advance, depart on a Saturday or Friday and return on a Friday

Find flight deals from Dallas/Fort Worth to Boulder

Cheapest flights from Dallas/Fort Worth to Boulder
Explore the most affordable flight options available from Dallas/Fort Worth to Boulder. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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.
Wed 12/38:30 amDFW - DEN
Nonstop2h 25mFrontier
Sat 12/62:22 pmDEN - DFW
1 stop20h 19mFrontier
Deal found 10/27$82
This Frontier deal was found by Cheapflights users on 10/27. 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.
Wed 11/127:45 amDFW - DEN
Nonstop2h 17mFrontier
Wed 11/1211:26 amDEN - DFW
Nonstop2h 10mFrontier
Deal found 10/27$83
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Wed 12/38:30 amDFW - DEN
Nonstop2h 25mFrontier
Sun 12/79:05 pmDEN - DFW
Nonstop2h 04mFrontier
Deal found 10/27$84
This Frontier deal was found by Cheapflights users on 10/27. 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 12/48:38 pmDFW - DEN
Nonstop2h 21mFrontier
Sun 12/79:05 pmDEN - DFW
Nonstop2h 04mFrontier
Deal found 10/27$85
This Cheapflightsfares deal was found by Cheapflights users on 10/26. 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 12/58:38 pmDFW - DEN
Nonstop2h 21mFrontier
Mon 12/81:02 pmDEN - DFW
1 stop5h 58mFrontier
Deal found 10/26$86
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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.
Tue 11/114:06 pmDFW - DEN
Nonstop2h 19mFrontier
Wed 11/1212:34 amDEN - DFW
1 stop11h 55mFrontier
Deal found 10/28$87
This Flightnetwork deal was found by Cheapflights users on 10/27. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:38 pmDFW - DEN
Nonstop2h 21mFrontier
Sun 12/76:35 amDEN - DFW
Nonstop2h 09mFrontier
Deal found 10/27$89
This Trip.com deal was found by Cheapflights users on 10/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1510:30 amDFW - DEN
Nonstop2h 19mFrontier
Sun 11/166:00 amDEN - DFW
Nonstop2h 08mFrontier
Deal found 10/27$91
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Mon 11/105:35 amDFW - DEN
Nonstop2h 16mFrontier
Wed 11/128:00 amDEN - DFW
Nonstop2h 09mFrontier
Deal found 10/27$92
This Frontier deal was found by Cheapflights users on 10/27. 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 11/278:48 amDFW - DEN
Nonstop2h 27mFrontier
Thu 12/43:15 pmDEN - DFW
1 stop7h 35mFrontier
Deal found 10/27$94

Cheap flight deals from Dallas/Fort Worth to Boulder

Keep the following information in mind while searching for Dallas/Fort Worth to Boulder flight deals. Data was last updated October 29, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$82
(Frontier)

One-way from

$55
(Cheapflightsfares)

Popular in

June

Cheapest in

February

Average price

$170
Provider with most accurate pricing for Dallas-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dallas-Denver Intl flights.
Search Deals
From Dallas/Fort Worth to Boulder
Search Deals
One-way flight from Dallas/Fort Worth to Boulder
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($2 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas/Fort Worth 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 October 29, 2025.
Use the filters below to find and compare flights from Dallas/Fort Worth Airport to Boulder that are best for you.

Fly from

Dallas/Fort Worth

Fly to

Boulder

Route

Depart

Return

Price

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Sat 1/17

5:35 pm-10:06 pm

1 stop5h 31m

Denver Intl

Sat 1/24

5:42 pm-8:45 pm

Nonstop2h 03m

$152

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Tue 2/3

5:19 am-8:55 am

1 stop4h 36m

Denver Intl

Thu 2/5

5:01 am-11:25 am

1 stop5h 24m

$172

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Sat 2/28

12:30 pm-7:14 pm

1 stop7h 44m

Denver Intl

Tue 3/3

4:40 pm-12:17 am

1 stop6h 37m

$177

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Sat 2/21

3:35 pm-10:22 pm

1 stop7h 47m

Denver Intl

Thu 2/26

7:05 am-1:57 pm

1 stop5h 52m

$177

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Mon 12/15

5:19 am-12:11 pm

1 stop7h 52m

Denver Intl

Thu 12/18

7:05 am-2:40 pm

1 stop6h 35m

$177

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Wed 2/4

6:01 pm-10:36 pm

1 stop5h 35m

Denver Intl

Fri 2/6

12:30 am-10:51 am

1 stop9h 21m

$177

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Mon 2/16

7:23 pm-11:35 pm

1 stop5h 12m

Denver Intl

Wed 2/18

3:40 pm-6:43 pm

Nonstop2h 03m

$212

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Sat 1/10

7:00 am-2:05 pm

1 stop8h 05m

Denver Intl

Wed 1/14

7:00 am-1:43 pm

1 stop5h 43m

$218

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Tue 2/24

2:29 pm-7:14 pm

1 stop5h 45m

Denver Intl

Fri 2/27

12:59 am-9:00 am

1 stop7h 01m

$218

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Sat 1/3

8:05 am-3:13 pm

1 stop8h 08m

Denver Intl

Thu 1/8

1:15 pm-9:57 pm

1 stop7h 42m

$232

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 22 results
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Best time to book a flight from Dallas/Fort Worth to Boulder

Have a flexible travel schedule? Discover the best time to fly to Boulder from Dallas/Fort Worth 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 Dallas/Fort Worth Airport to Boulder

How far ahead should I book a flight from Dallas/Fort Worth Airport to Boulder?

Use this chart to determine the optimal time to book a round-trip flight from Dallas/Fort Worth to Boulder. Price data was last updated on October 24, 2025.

To ensure you get the cheapest price possible for a flight from Dallas/Fort Worth Airport to Boulder, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Dallas/Fort Worth Airport to Boulder?

Currently, February is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Boulder (average of $37). Flying from Dallas/Fort Worth Airport to Boulder in July is currently the most expensive (average of $99). 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 DFW to BD9?

Find hourly flight availability from Dallas/Fort Worth 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 October 29, 2025.

One of the essential ways to save on airfare from Dallas/Fort Worth Airport to Boulder is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 31% on airfare.

What is the cheapest day to fly from Dallas/Fort Worth Airport to Boulder?

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

Travelers seeking maximum savings on their Dallas/Fort Worth Airport to Boulder flight should consider departing on Sunday evenings when fares are most often at their lowest. Tuesday at noon 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 October 29, 2025.
Read through reviews of airlines operating flights from Dallas/Fort Worth Airport to Boulder, such as Denver Air Connection, Southwest, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Denver Air Connection
8.7
Very good

Food

8.4

Boarding

8.7

Comfort

8.9

Entertainment

8.1

Overall

8.7

Crew

9.4
Denver Air Connection
8.7
Very good
Denver Air Connection
8.7
Very good

Food

8.4

Boarding

8.7

Comfort

8.9

Entertainment

8.1

Overall

8.7

Crew

9.4
Southwest
8.0
Very good
4,241 reviews
Denver Air Connection
8.7
Very good

Food

8.4

Boarding

8.7

Comfort

8.9

Entertainment

8.1

Overall

8.7

Crew

9.4
United Airlines
7.4
Good
8,999 reviews
Denver Air Connection
8.7
Very good

Food

8.4

Boarding

8.7

Comfort

8.9

Entertainment

8.1

Overall

8.7

Crew

9.4
American Airlines
7.2
Good
11,032 reviews
Denver Air Connection
8.7
Very good

Food

8.4

Boarding

8.7

Comfort

8.9

Entertainment

8.1

Overall

8.7

Crew

9.4
Frontier
5.8
Fair
3,124 reviews
Denver Air Connection
8.7
Very good

Food

8.4

Boarding

8.7

Comfort

8.9

Entertainment

8.1

Overall

8.7

Crew

9.4

Related info for your journey

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

  • How long is the flight from Dallas/Fort Worth Airport to Boulder?

    Departing from Dallas/Fort Worth Airport to Boulder will take you 5h 31m. Dallas/Fort Worth Airport and Boulder are separated by a distance of 641 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Dallas/Fort Worth Airport to Boulder?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Dallas/Fort Worth Airport to Boulder on time: SkyWest Airlines (100%), GOL (84%), United Airlines (82%).

  • What are the cheapest flights from Dallas/Fort Worth Airport to Boulder?

    On average you can expect to pay $545 for a flight from Dallas/Fort Worth Airport to Boulder. The cheapest flight overall is $54 while the most popular route, (Dallas/Fort Worth - Denver Intl) is currently priced at $83.

  • Can I find deals for flights from Dallas/Fort Worth to Boulder that include hotel bookings?

    Yes. In addition to deals on Dallas/Fort Worth to Boulder flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dallas/Fort Worth to Boulder?

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

  • Can I find deals for business class flights from Dallas/Fort Worth to Boulder?

    Yes. Cheapflights offers flight deals from Dallas/Fort Worth 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 Dallas/Fort Worth Airport to Boulder?

    Currently, February is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Boulder (average of $37). Flying from Dallas/Fort Worth Airport to Boulder in July is currently the most expensive (average of $99). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Dallas/Fort Worth to Boulder

Discover the top 6 airlines that operate flights from Dallas/Fort Worth 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$140FlexibilityNo cancel feeOn-time62%
Denver Air ConnectionCheapest$104Average$209FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$132Average$191FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$148Average$290FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$149Average$360FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$154Average$284FlexibilityNo cancel feeOn-time63%

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