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$59+ 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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — DEN
Okt 14 — Okt 211
Di 10/14
Di 10/21
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 Wednesday and return on a Friday

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 September 14, 2025.

Round-trip from

$86
(Kiwi.com)

One-way from

$59
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$167
From Dallas/Fort Worth to Boulder
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One-way flight from Dallas/Fort Worth to Boulder
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Highest demand for flights based on searches. 11% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
So 11/25:35 amDFW - DEN
Nonstop2h 16mFrontier
Di 11/119:05 pmDEN - DFW
Nonstop2h 05mFrontier
Deal found 9/12$86
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Mo 9/2210:25 pmDFW - DEN
Nonstop2h 17mFrontier
Fr 9/269:18 pmDEN - DFW
Nonstop2h 05mFrontier
Deal found 9/12$87
This Booking.com deal was found by Cheapflights users on 9/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 10/310:25 pmDFW - DEN
Nonstop2h 17mFrontier
Di 10/76:01 amDEN - DFW
Nonstop2h 08mFrontier
Deal found 9/13$88
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 10/910:30 pmDFW - DEN
Nonstop2h 18mFrontier
Mi 10/156:01 amDEN - DFW
Nonstop2h 08mFrontier
Deal found 9/13$90
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 12/512:22 pmDFW - DEN
Nonstop2h 15mFrontier
Di 12/99:05 pmDEN - DFW
Nonstop2h 04mFrontier
Deal found 9/13$91
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 10/245:14 amDFW - DEN
Nonstop2h 16mFrontier
Sa 10/258:00 amDEN - DFW
Nonstop2h 09mFrontier
Deal found 9/14$92
This Trip.com deal was found by Cheapflights users on 9/12. 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.
Mi 9/248:05 pmDFW - DEN
Nonstop2h 17mFrontier
Sa 9/277:30 amDEN - DFW
Nonstop2h 08mFrontier
Deal found 9/12$93
This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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.
Sa 10/48:05 pmDFW - DEN
Nonstop2h 17mFrontier
Mo 10/66:10 amDEN - DFW
Nonstop2h 06mFrontier
Deal found 9/12$95
This Frontier deal was found by Cheapflights users on 9/12. 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.
Sa 10/1110:25 pmDFW - DEN
Nonstop2h 18mFrontier
Di 10/1410:01 amDEN - DFW
Nonstop2h 11mFrontier
Deal found 9/12$96
This Frontier deal was found by Cheapflights users on 9/11. 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.
Di 9/308:05 pmDFW - DEN
Nonstop2h 17mFrontier
Mi 10/18:00 amDEN - DFW
Nonstop2h 15mFrontier
Deal found 9/11$97
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Do 10/26:00 amDFW - DEN
Nonstop2h 16mFrontier
Mo 10/68:11 amDEN - DFW
Nonstop2h 15mFrontier
Deal found 9/12$98
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 10/1110:25 pmDFW - DEN
Nonstop2h 18mFrontier
Do 10/163:27 pmDEN - DFW
Nonstop2h 08mFrontier
Deal found 9/14$99

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 September 14, 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

Sa 11/15

1:46 pm-2:54 pm

Nonstop2h 08m

Denver Intl

Mo 11/17

5:25 pm-10:59 pm

1 stop4h 34m

$157

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Sa 12/13

3:50 pm-7:46 pm

1 stop4h 56m

Denver Intl

Mo 12/15

3:40 pm-6:43 pm

Nonstop2h 03m

$159

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

So 10/12

7:35 pm-8:55 pm

Nonstop2h 20m

Denver Intl

So 10/19

6:15 am-9:23 am

Nonstop2h 08m

$173

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Sa 11/15

7:00 am-12:44 pm

1 stop6h 44m

Denver Intl

Sa 11/15

4:44 pm-11:58 pm

1 stop6h 14m

$191

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Fr 12/5

7:55 am-2:57 pm

1 stop8h 02m

Denver Intl

Di 12/9

7:05 am-5:17 pm

1 stop9h 12m

$197

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Di 10/28

3:15 pm-7:30 pm

1 stop5h 15m

Denver Intl

Fr 10/31

2:00 pm-9:52 pm

1 stop6h 52m

$197

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Fr 12/5

6:31 pm-11:16 pm

1 stop5h 45m

Denver Intl

Fr 12/12

12:50 am-9:05 am

1 stop7h 15m

$197

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Sa 11/1

2:54 pm-7:01 pm

1 stop5h 07m

Denver Intl

Fr 11/7

4:47 pm-11:59 pm

1 stop6h 12m

$197

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Sa 11/1

6:50 am-12:39 pm

1 stop6h 49m

Denver Intl

Mo 11/3

2:57 pm-10:18 pm

1 stop6h 21m

$197

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Sa 10/25

3:15 pm-7:30 pm

1 stop5h 15m

Denver Intl

Fr 10/31

4:47 pm-11:59 pm

1 stop6h 12m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

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 September 12, 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, October is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Boulder (average of $197). Flying from Dallas/Fort Worth Airport 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 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 September 14, 2025.

When flying from Dallas/Fort Worth Airport 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 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 Wednesday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Dallas/Fort Worth Airport to Boulder

Explore weekly flight availability from Dallas/Fort Worth 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 September 14, 2025.

The most flights from DFW to BD9 are scheduled on a Sunday (44 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (35 on average).

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 September 14, 2025.
Read through reviews of airlines operating flights from Dallas/Fort Worth Airport to Boulder, such as Southwest, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,931 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 2h 08m. 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 (76%), Avianca (75%).

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

    On average you can expect to pay $477 for a flight from Dallas/Fort Worth Airport to Boulder. The cheapest flight overall is $67 while the most popular route, (Dallas/Fort Worth - Denver Intl) is currently priced at $73.

  • 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, October is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Boulder (average of $197). Flying from Dallas/Fort Worth Airport 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

Browse thousands of different options on Cheapflights for your next trip

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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 September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$138FlexibilityNo cancel feeOn-time62%
Denver Air ConnectionCheapest$104Average$215FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$132Average$191FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$143Average$290FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$147Average$282FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$148Average$358FlexibilityNo cancel feeOn-time69%

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