$64 Find Cheap Flights from Atlanta 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 Atlanta to Boulder departing on 4/3. 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
$88
Overall average: $237
Frontier
Fri 4/24Sun 4/26
ATL - DEN • Non-stop
Cheapest non-stop
$88
Typical prices: $155-$319
Frontier
Fri 4/24Mon 4/27
ATL - DEN • Non-stop
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Flight Deals
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Flight Deals

Cheap Flights from Atlanta to Boulder (ATL-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Atlanta 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 Atlanta to Boulder

Fri, Apr 24 - Sun, Apr 26
Frontier Logo
9:20 pm - 11:03 pm
ATL
-
DEN
3h 43mnonstop
Frontier Logo
1:09 pm - 6:22 pm
DEN
-
ATL
3h 13mnonstop
$88Frontier
Sat, Apr 18 - Tue, Apr 21
Frontier Logo
10:30 am - 12:09 pm
ATL
-
DEN
3h 39mnonstop
Frontier Logo
9:06 pm - 9:20 am
DEN
-
ATL
10h 14m
1 stop
$89Frontier
Sun, May 3 - Sun, May 10
Frontier Logo
10:30 am - 12:09 pm
ATL
-
DEN
3h 39mnonstop
Frontier Logo
11:59 pm - 5:11 am
DEN
-
ATL
3h 12mnonstop
$90Frontier
Wed, Mar 11 - Mon, Mar 16
Frontier Logo
9:20 pm - 11:04 pm
ATL
-
DEN
3h 44mnonstop
Frontier Logo
11:59 pm - 5:01 am
DEN
-
ATL
3h 02mnonstop
$91Frontier
Sun, Apr 5 - Tue, Apr 14
Frontier Logo
9:21 pm - 11:04 pm
ATL
-
DEN
3h 43mnonstop
Frontier Logo
1:09 pm - 6:22 pm
DEN
-
ATL
3h 13mnonstop
$92Frontier
Fri, Apr 24 - Mon, Apr 27
Frontier Logo
10:30 am - 12:09 pm
ATL
-
DEN
3h 39mnonstop
Frontier Logo
11:59 pm - 5:11 am
DEN
-
ATL
3h 12mnonstop
$93Frontier
Tue, Apr 7 - Tue, Apr 7
Frontier Logo
10:30 am - 12:09 pm
ATL
-
DEN
3h 39mnonstop
Frontier Logo
11:59 pm - 5:11 am
DEN
-
ATL
3h 12mnonstop
$96Frontier
Sat, May 9 - Sat, May 16
Frontier Logo
9:20 pm - 11:03 pm
ATL
-
DEN
3h 43mnonstop
Frontier Logo
8:00 am - 9:07 pm
DEN
-
ATL
11h 07m
1 stop
$97Frontier
Mon, Mar 2 - Sat, Mar 7
Frontier Logo
6:00 am - 7:39 am
ATL
-
DEN
3h 39mnonstop
Frontier Logo
11:49 pm - 4:51 am
DEN
-
ATL
3h 02mnonstop
$98Frontier
Tue, Mar 3 - Thu, Mar 5
Frontier Logo
8:00 pm - 9:41 pm
ATL
-
DEN
3h 41mnonstop
Frontier Logo
12:42 pm - 9:19 pm
DEN
-
ATL
6h 37m
1 stop
$99Frontier
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$64
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Atlanta to Denver

When to book flights from Atlanta to Boulder

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

Flights from Atlanta to Boulder: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Atlanta to Boulder 
DanaFlew with United Airlines
ATL
-
DEN
Nov 2024
Bring your own headset if you want to plug into the in chair TV. They don’t have any to pass out.
KristofferFlew with United Airlines
ATL
-
DEN
Feb 2024
Check prices all the time as they fluctuate often

FAQs for booking flights from Atlanta to Boulder

  • Which airports will I be using when flying from Atlanta to Boulder?

    When flying out of Atlanta you’ll be using Atlanta Hartsfield-Jackson. 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 Atlanta to Boulder take?

    Direct flights cover the 1,196 miles separating Atlanta and Boulder in about 3h 18m.

  • How many flights are there between Atlanta and Boulder?

    50 direct flights run between Atlanta and Boulder on a daily basis. On average, there are about 353 departures each week.

  • What’s the cheapest day of the week to fly between Atlanta and Boulder?

    Consider leaving on a Monday and avoid Saturdays if you are looking for the best rates. For your return to Atlanta, you’ll find the best rates on Tuesdays and the most expensive ones on Saturdays.

  • How does KAYAK find such low prices on flights from Atlanta 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 Atlanta to Boulder.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boulder from Atlanta 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 Atlanta 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 Atlanta with another airline.

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

    In the last 72 hours, the cheapest one-way ticket between Atlanta and Boulder found on KAYAK was with Frontier for $45. Frontier offered a round-trip connection from $67 and Delta from $119.

Top tips for finding cheap flights from Atlanta to Boulder

  • There is no airport in Boulder. Instead, you’ll be flying into Denver Airport when flying between Atlanta and Boulder.
  • The cheapest flight from Atlanta to Boulder was found 41 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is January.

Reviews of the top 5 airlines serving Atlanta to Boulder

 
Need help choosing which airline to fly with from Atlanta 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
SouthwestOverall score based on 4286 reviews
7.0Food
7.5Entertainment
8.0Comfort
8.6Crew
8.1Boarding
Airline reviews

The WiFi and crew on the plane were good, however, the boarding experience was awful. I paid for the Choice Preferred and was boarded in group 5 so all overhead storage was full. They found room for our luggage, but further back making getting off the plane a nightmare. Also, we were in row 6 and the seats were extremely uncomfortable. Both my daughter and I had no leg room and couldn’t wait to get off the plane.

4.0 OkayAnonymous, Feb 2026
BOI - LAS
Read more Southwest reviews

The WiFi and crew on the plane were good, however, the boarding experience was awful. I paid for the Choice Preferred and was boarded in group 5 so all overhead storage was full. They found room for our luggage, but further back making getting off the plane a nightmare. Also, we were in row 6 and the seats were extremely uncomfortable. Both my daughter and I had no leg room and couldn’t wait to get off the plane.

The charges were ridiculous for an hour flight and the turbulence was very scary.

Still need to work out the kinks on the new assigned seating boarding process. Otherwise, a very good flight.

WiFi did not work. Boarding with the new seating assignments took too long. The temperature in the terminal was obnoxious. +/- 80°

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

I was assigned seat 7E, yet my boarding was Group 5, which caused me to have to put my luggage in the back of the plance above `19 or 20 aisle, as passengers who had boarded earlier took the overhead bins in the front. SW needs to monitor bin space and ensure that bin space above the seat are aligned to those sitting near their seats. Also the seating assignments needs to align with group number. Maybe board those last first and so on? Having said the ALL the passengers on the plane were gracious enough to allow me and other passengers in this dilema to retrieve our luggage and helped us along the way. I always love the flight staff, as always their fantastic and I can't rave about them enough!

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Flight attendants very hospitable and friendly. Pilot flew a smooth take off and landing.

Smallest leg room I've ever had on a plane.

They took all carry-on luggage from Groups 6 -9 - I was group 5 and waiting in line to board - they made me check my luggage too. That then went to baggage claim and delayed departure from the airport. There was overhead room in my seating area - Delta over reacted. Also, had a gentleman next to me that took up 1/2 my seat.

The gate agent was most helpful in getting me on to fly standby. I greatly appreciate it.

Sorry I didn't realize I was writing a review for each leg. Please see my previous review - it applies to the entire flight, not just a single leg.

Only freetext wifi was available in flight; browsing WiFi required payment. Since the seats had no in flight entertainment, Delta should revisit this policy on this longer flight.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

The flight was delayed and oversold. I volunteered to give up my seat for compensation. Thinking I could get a good night's sleep instead of arriving home at 2 am. It took over an hour to get the new reservation confirmed, three different gate attendants, and two red coats. It took even longer to confirm the overnight hotel, and when I arrived, the line was 45 minutes long, with two people checking in, and at least 15 people slowly, very slowly—no food except frozen convenience food, no coupon for food from airlines. Slept, headed back to the airport, and that flight had an equipment change and a gate change just as they were about to board. It took an additional hour to board as they cleaned the plane from storage.

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

It was good because we traveled without luggage, carry on only.

Both of my flights arrived early and check in process was smooth

Everything was on time Will use united again for sure

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Gate agent at Frankfurt was terrible. She denied PRE boarding even as it was printed on the boarding pass. Refused to look at the boarding pass and literally shouting for no reason. Frankfurt airport has horrible and rude staff who avoids trying to answer any question at all. Overall, horrible experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

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.

Excellent experience. Starting with the agent at the Premier bag drop who noticed I was very early for my scheduled flight and offered to rebook me on an earlier flight with my seat preference. She would not let me leave the counter until she knew that all of the changes and new boarding pass showed up on my United app. At the gate, the flight boarded quickly such that we departed early and the flight was smooth. We arrived 20 minutes early at ORD and I was able to be home in time for dinner. One of the best flights I've had.

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

Didn't get a seat assignment until the last minute even though i picked a seat.

American has been able to implement an algorithm that makes it possible for nearly every one of my evening flights to be late. Congratulations!

I was on a small regional flight from Detroit to Philadelphia. When we landed the outside cruise needed to turn something off with the engine, which took quite a long time. Then, when they allowed us to get off the plane it was outside. They took their time, unloading all the luggage and waited till they unloaded all the luggage before they brought it over to us. It was 9 o’clock at night freezing cold out, and there was no proactive hustle to try to get people their luggage. It was really one of the worst experiences I think I’ve ever had with American until a manager came over. I don’t think they were going to even consider pulling the luggage over to the people that had been waiting outside for at least 10 minutes in the freezing cold.

The flight was fine, once we got underway. It was more than hour delayed

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

Waited for oxygen tanks for 30 minutes after boarding was complete.

The seats are too uncomfortable for anyone over 5ft 8in. I'm 5'10" with a back and hip issue and I was in pai for the full duration of the flight.

The flight was on time/early, attentive crew, and everything overall went smoothly. Disappointed that WIFI was not working for the flight.

One day, I do so hope for a gluten free snack! Seems like with the rest of the world FINALLY figuring out what gluten free is, American Airlines would too. Fingers crossed!!

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

Inbound plane was on time and flight departed on time with no issues while boarding.

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!!!

Too many extra fees, uncomfortable, little leg room. Will not recommend this airline.

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.

Disaster. They lied every step of the way. We ended up being delayed due to crew and then allegedly abandoned the flight because of a curfew at LGA. No rebooking to LGA at any reasonable time. No hotel. No meal vouchers. Had to sleep in the airport and fly to Newark instead. Will never fly Frontier again.

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

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