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Cheap flights from Dallas/Fort Worth (DFW) to Boulder, CO

DFW — DEN
Dec 4 — Dec 111
Fri 12/4
Fri 12/11
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 80 days in advance, depart on a Saturday or Thursday and return on a Friday

Find flight deals from Dallas/Fort Worth to Boulder

Popular in

September

Cheapest in

February

Average price

$206
Highest demand for flights based on searches. 13% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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Cheapflights Insights

Everything you need to know about your flight from Dallas/Fort Worth Airport to Boulder

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

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 afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 19% on airfare.

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

Travelers seeking maximum savings on their Dallas/Fort Worth Airport to Boulder flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Boulder

Read through reviews of airlines operating flights from Dallas/Fort Worth Airport to Boulder, such as Southwest,United Airlines, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,212 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.
Southwest
8.0
Very good
4,212 reviews
Southwest
8.0
Very good
4,212 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.
United Airlines
7.3
Good
10,460 reviews
Southwest
8.0
Very good
4,212 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.
JetBlue
7.1
Good
3,065 reviews
Southwest
8.0
Very good
4,212 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.
American Airlines
7.0
Good
12,230 reviews
Southwest
8.0
Very good
4,212 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.
Frontier
5.5
Fair
2,511 reviews
Southwest
8.0
Very good
4,212 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Related info for your journey

  • What are the cheapest airlines to fly from Dallas/Fort Worth Airport to Boulder one-way?

    One-way options have recently been found by users for as low as $31 on Frontier. Other airlines that offer cheap prices include American Airlines from $81 and Southwest from $89 one-way.

  • 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 (86%), United Airlines (82%), Frontier (81%).

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

    On average you can expect to pay $693 for a flight from Dallas/Fort Worth Airport to Boulder. The cheapest flight overall is $60 while the most popular route, (Dallas/Fort Worth - Denver Intl) is currently priced at $110.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Dallas/Fort Worth to Boulder

AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$205FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$157Average$339FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$158Average$337FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$165Average$344FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$168Average$234FlexibilityNo cancel feeOn-time62%

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