$43 Find Cheap Flights from Dallas to Boulder

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dallas to Boulder departing on 12/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$76
Overall average: $194
Frontier
Wed 12/31Thu 1/1
DFW - DEN • Non-stop
Cheapest one-way
$43
Typical prices: $88-$259
Frontier
Wed 12/24
DFW - DEN • Non-stop
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Flight Deals

Cheap Flights from Dallas to Boulder (DFW-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dallas to Boulder that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dallas to Boulder

Wed, Dec 31 - Thu, Jan 1
Frontier Logo
7:43 pm - 9:03 pmDFW-DEN
2h 20mnonstop
Frontier Logo
9:05 pm - 12:09 amDEN-DFW
2h 04mnonstop
$76Frontier
Find Deal
Wed, Dec 31 - Thu, Jan 1
Frontier Logo
7:43 pm - 9:03 pmDFW-DEN
2h 20mnonstop
Frontier Logo
9:05 pm - 12:09 amDEN-DFW
2h 04mnonstop
$77Frontier
Find Deal
Wed, Dec 24 - Fri, Jan 9
Frontier Logo
2:02 pm - 3:17 pmDFW-DEN
2h 15mnonstop
Frontier Logo
12:13 pm - 3:14 pmDEN-DFW
2h 01mnonstop
$78Frontier
Find Deal
Tue, Dec 16 - Wed, Dec 17
Frontier Logo
8:00 am - 10:29 pmDFW-DEN
15h 29m1 stop
Frontier Logo
8:00 am - 11:07 amDEN-DFW
2h 07mnonstop
$79Frontier
Find Deal
Thu, Jan 29 - Thu, Jan 29
Frontier Logo
10:55 am - 12:19 pmDFW-DEN
2h 24mnonstop
Frontier Logo
9:05 pm - 12:11 amDEN-DFW
2h 06mnonstop
$80Frontier
Find Deal
Wed, Jan 21 - Sat, Jan 24
Frontier Logo
8:45 am - 3:54 pmDFW-DEN
8h 09m1 stop
Frontier Logo
5:25 pm - 8:33 pmDEN-DFW
2h 08mnonstop
$81Frontier
Find Deal
Sat, Jan 10 - Sun, Jan 11
Frontier Logo
4:44 pm - 6:03 pmDFW-DEN
2h 19mnonstop
Frontier Logo
9:44 am - 12:53 pmDEN-DFW
2h 09mnonstop
$82Frontier
Find Deal
Sat, Jan 31 - Sat, Jan 31
Frontier Logo
1:05 pm - 5:49 pmDFW-DEN
5h 44m1 stop
Frontier Logo
7:59 pm - 11:07 pmDEN-DFW
2h 08mnonstop
$83Frontier
Find Deal
Sat, Dec 13 - Tue, Dec 16
Frontier Logo
6:00 am - 7:15 amDFW-DEN
2h 15mnonstop
Frontier Logo
10:50 am - 1:57 pmDEN-DFW
2h 07mnonstop
$84Frontier
Find Deal
Fri, Feb 13 - Sun, Feb 15
Frontier Logo
6:00 am - 7:15 amDFW-DEN
2h 15mnonstop
Frontier Logo
9:05 pm - 12:09 amDEN-DFW
2h 04mnonstop
$85Frontier
Find Deal
Useful Info

Good to know

Low seasonApril
Cheapest flight$43
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly with an average 11% increase in price.
Flight from Dallas/Fort Worth Airport to Denver

When to book flights from Dallas to Boulder

Are your dates flexible? Find out the best times to travel from Dallas to Boulder based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Dallas to Boulder

  • Which airports will I be using when flying from Dallas/Fort Worth Airport to Boulder?

    When flying out of Dallas/Fort Worth Airport you’ll be using Dallas/Fort Worth. Boulder does not have its own airport so you’ll be flying into nearby Denver Intl airport, which is 33.4 mi away.

  • How long does a flight from Dallas/Fort Worth Airport to Boulder take?

    Direct flights cover the 641 miles separating Dallas/Fort Worth Airport and Boulder in about 2h 02m.

  • How many flights are there between Dallas/Fort Worth Airport and Boulder?

    71 direct flights run between Dallas/Fort Worth Airport and Boulder on a daily basis. On average, there are about 500 departures each week.

  • What’s the cheapest day of the week to fly between Dallas/Fort Worth Airport and Boulder?

    Consider leaving on a Tuesday and avoid Saturdays if you are looking for the best rates. For your return to Dallas/Fort Worth Airport, you’ll find the best rates on Thursdays and the most expensive ones on Saturdays.

  • How does KAYAK find such low prices on flights from Dallas to Boulder?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Dallas to Boulder.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Dallas to Boulder?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boulder from Dallas is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Dallas to Boulder?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boulder with an airline and back to Dallas with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dallas to Boulder?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boulder from Dallas up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Dallas/Fort Worth Airport to Boulder?

    In the last 72 hours, the cheapest one-way ticket between Dallas/Fort Worth Airport and Boulder found on KAYAK was with Frontier for $36. Frontier offered a round-trip connection from $56 and Denver Air Connection from $80.

Top tips for finding cheap flights from Dallas/Fort Worth Airport to Boulder

  • There is no airport in Boulder. Instead, you’ll be flying into Denver Airport when flying between Dallas/Fort Worth Airport and Boulder.
  • The cheapest flight from Dallas to Boulder was found 77 days before departure, on average.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly is February.

Reviews of the top 5 airlines serving Dallas to Boulder

 
Need help choosing which airline to fly with from Dallas to Boulder? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11392 reviews
8.1Boarding
7.8Comfort
7.1Food
8.5Crew
7.0Entertainment
Airline reviews

Sitting on the ground for 2 hours waiting for a gate wasn't fun.

4.0 OkayJack, Oct 2025SAN - DEN
Read more Alaska Airlines reviews

Sitting on the ground for 2 hours waiting for a gate wasn't fun.

The crew was great! Passengers were nice. Just an fyi that I heard several of them complain that the snack was not gluten free. Many people got handed the snack and then promptly gave it back to the flight attendant. Might be good to look into another option as such a high percentage of people in CO and WA are gf. Cheers!

No issues at all other than the seats. Of all the airlines I've flown on in my life (this was my first with Alaska Airlines), these were significantly the most uncomfortable seats I've had - more so than Spirit Airlines. I'm a relatively young guy and mostly fit but oof, i was aching in muscles I didn't even know I had. Not sure if the seats are standard for the plane (if it even works like that) or if the choice to use cardboard as cushion and 90 degree angle back rests was a decision, but it wouldn't honestly make me think twice about flying with them again. Other than that - perfect flight. It was quick, crew was nice, ride was smooth so all things considered I appreciate the last minute availability offered after a sudden relocation on my part.

First time flying with Alaska, and it went great. Thank you for a great experience flying to PDX.

Seats hurt and can't recline far enough no screens in the back of the seats food or snacks not good

Flight attendant was rude when I advised her that the bathroom had no paper towels or tissue paper.

I was pleasantly surprised to discover that Alaskan Airlines allows normal leg space in the economy class cabin, offers free movies and other entertainment programs via WiFi. The staff was friendly and worked hard to make this long flight enjoyable.

Not a fan of a 5 hour delay. I received a text from Alaska Airlines advising I would get a $100 travel voucher via email. Several days later I still haven’t received it.

There was no entertainment - perhaps they need to upgrade the planes that service a route that is more that 2 hours long? Otherwise, everything was perfect.

We have always flown with Alaska when we can. As they have great customer service. This trip we had to transfer to Air LINGUS in Denver to go to Dublin. That’s where things went bad! Our checked luggage didn’t arrive. The process to make a claim was way more complicated than it should be. It took 5 days to recover our luggage. The whole time we couldn’t talk to a real person who could tell us anything. The whole time Alaska blamed Air lingus and vis a versa. No one seemed want to help us. That was the worst part.

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

Terrible. They wouldn't allow me on my flight on the 14th..

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

A little bit more leg room in premium economy. I am 6’4”.

Things were delayed a little. But that didn’t affect my plans. It was fine. I was surprised it was so full thanksgiving day. The crew were friendly and professional.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

I have a gluten allergy so did have any food

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

The only thing to like was that we eventually got to our destination

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

We were delayed for a “couple of maintenance issues.” They were resolved rather quickly but a computer glitch caused someone in the airport to have to bring a physical copy of the paperwork so we could leave. I don’t know where they had to drive from to get to our plane but it took forever & we were 1 1/2 hrs late in leaving. The flight itself was fine.

We didn't take off until an hour after we boarded.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

Everything you need to know for your flight from Dallas to Boulder

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