$98 Find Cheap Flights from Atlanta to Boulder - Compare and Save

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 9/27. 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.
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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$135
Typical prices: $166-$322
Frontier
Thu 8/20Wed 8/26
ATL - DEN • 1 stop
Cheapest non-stop
$135
Typical prices: $162-$323
Frontier
Fri 8/14Sat 8/29
ATL - DEN • Non-stop
Arrival airport
You can't fly directly to Boulder. It is served by Denver (DEN), located 33.4 miles from Boulder.
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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

Thu, Aug 20 - Wed, Aug 26
Frontier Logo
4:28 pm - 9:25 pm
ATL
-
DEN
6h 57m
1 stop
Frontier Logo
11:59 pm - 5:21 am
DEN
-
ATL
3h 22mnonstop
$135Frontier
Fri, Aug 14 - Sat, Aug 29
Frontier Logo
12:34 pm - 2:01 pm
ATL
-
DEN
3h 27mnonstop
Frontier Logo
11:59 pm - 5:21 am
DEN
-
ATL
3h 22mnonstop
$135Frontier
Sat, Aug 29 - Sat, Sep 5
Delta Logo
9:45 pm - 11:05 pm
ATL
-
DEN
3h 20mnonstop
Delta Logo
4:33 pm - 9:52 pm
DEN
-
ATL
3h 19mnonstop
$197Delta
Sat, Oct 24 - Tue, Oct 27
Delta Logo
8:35 am - 9:50 am
ATL
-
DEN
3h 15mnonstop
Delta Logo
8:00 am - 12:57 pm
DEN
-
ATL
2h 57mnonstop
$197Delta
Sat, Aug 29 - Wed, Sep 2
Southwest Logo
7:05 am - 8:10 am
ATL
-
DEN
3h 05mnonstop
Southwest Logo
5:55 pm - 11:00 pm
DEN
-
ATL
3h 05mnonstop
$197Southwest
Sat, Aug 29 - Sat, Sep 5
Southwest Logo
7:05 am - 8:10 am
ATL
-
DEN
3h 05mnonstop
Southwest Logo
5:20 pm - 10:15 pm
DEN
-
ATL
2h 55mnonstop
$197Southwest
Wed, Sep 23 - Tue, Sep 29
United Airlines Logo
8:50 am - 10:13 am
ATL
-
DEN
3h 23mnonstop
United Airlines Logo
5:58 pm - 10:59 pm
DEN
-
ATL
3h 01mnonstop
$207United Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
11:23 am - 12:45 pm
ATL
-
DEN
3h 22mnonstop
United Airlines Logo
3:55 pm - 8:56 pm
DEN
-
ATL
3h 01mnonstop
$207United Airlines
Sat, Aug 15 - Wed, Aug 19
Multiple Airlines Logo
10:48 pm - 2:31 pm
ATL
-
DEN
41h 43m
2 stops
Multiple Airlines Logo
7:00 am - 8:04 pm
DEN
-
ATL
11h 04m
1 stop
$224Multiple Airlines
Thu, Aug 13 - Mon, Aug 17
Multiple Airlines Logo
10:42 pm - 12:32 pm
ATL
-
DEN
39h 50m
2 stops
Multiple Airlines Logo
9:06 pm - 9:32 am
DEN
-
ATL
10h 26m
1 stop
$229Multiple Airlines
Useful Info

Good to know

Low season

January

Cheapest flight

$98
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 19% 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 02m.

  • How many flights are there between Atlanta and Boulder?

    45 direct flights run between Atlanta and Boulder on a daily basis. On average, there are about 316 departures each week.

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

    Consider leaving on a Friday and avoid Saturdays if you are looking for the best rates. For your return to Atlanta, you’ll find the best rates on Fridays 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 5 days, the cheapest one-way ticket between Atlanta and Boulder found on KAYAK was with Frontier for $44. Frontier offered a round-trip connection from $68 and American Airlines from $106.

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 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 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 4228 reviews
8.1Boarding
8.6Crew
8.0Comfort
7.5Entertainment
7.0Food
Airline reviews

Friendly crew kept coming by to make sure all was ok, provide additional refreshments, etc.

10.0 ExcellentTamara, Jul 2026
MCO - DEN
Read more Southwest reviews

Friendly crew kept coming by to make sure all was ok, provide additional refreshments, etc.

Flight was delayed by 2 hours, meaning that a flight to Dwnver which should have arrived at 11pm came into the airport at 1 am. Made for a very long day.

Crew was rude, flight was late, wifi didn't work, no food, basically nothing about this flight was good.

Flight was constantly delayed with significant changes in time, it was supposed to get to Colorado Springs at 8:30 PM but it got there after midnight.

Gate agents were informative and friendly… flight attendants were as well. Had a fun time chatting about their legacy AirTran experiences as a former fan of the airline that Southwest acquired.

The fluidity of the entire process of boarding the plane the flight attendants attentiveness. The flight attendants also provided coloring books for my kids who loved it.

Excellent. The lady boarding the flight was awesome. Very efficient, and she got everyone on line.

It was great! The new boeing has much more space and charging ports!

I kept getting h notifications that the flight was delayed. At the airport it was only 2 mins delay. Very confusing. No WiFi on the plan. Snacks very salty. No alternative

I like the boarding procedure. A bumpy ride, but it couldn't be helped. Please make sure the exit seats are clearly indicated.

It was good delayed again but once on board the flight crew were very good the entertainment and wifi worked on this plane and we were offered snacks and drinks

The second half of terminal C at Hartsfield was 80 something degrees. I was sweating just sitting at the gate.

Seat was too small for someone as tall as I am. I was behind an exit row making my leg room even less. There flights were delayed by multiple hours. Some weather related and others staff related. The plane was hot. Horrible experience.

Flight was delayed and then "they did not have time to load food". No snack or drink at all for 1.5 how flight. Somebody wasn't prepared.

Friendly flight attendant Quick checking for baggage drop Quick TSA lines

It was okay. We were delayed for weather reasons, but the pilots and the flight control staff figured a way around the storm and were able to get us to Los Angeles safely. Not all the staff members were polite, but the entertainment on the flight was good.

So terrible. My flight was 4 hours delayed and we weren't notified til last second within an hour of boarding. WE had to sit on the plane for 4 hours. ridiculous.

Missed the Flight from Atlanta to Roanoke due to initial flight from Houston being 2hr. late. Now waiting 17hrs. till my first available flight.

Airline lost my luggage and set me back a day worth of travel due to having to stay in Denver to wait on my luggage

The flight attendants were friendly and seemed to like their jobs. I am not a high maintenance person, but they seemed to respond to people's needs and requests in a timely fashion with a smile.. I appreciate the benefits of complimentary snacks and beverages, as well as the relatively inexpensive checked baggage fee. (Although I would like it better if it were free! :) ) The only improvement that could be made to make the boarding process more efficient is to board the plane from the back. The alternative would be to board people with only a personal item first. This would reduce the wait time while others are stowing their baggage.

I had a terrible experience. My flight got delayed from Atlanta to Chicago on Monday April 6, 2026, and that led to me missing my next flight to Brussels. United Airlines didn’t provide me with any accommodation for shelter. I had to sleep at the airport in Chicago. The next flight I was put on didn’t leave until the evening hours of Tuesday 4/7/2026.

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

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.

Cramped seat even in economy plus seat 10A. Over booked flight, no space for the bags

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

Great onboard crew. Boarding was a zoo, I got in line before pre boarding in Group 2, still had my bag force checked. WiFi was glitchy all flight. Seat and bathroom are both tiny unless you pay $$$ for first class.

The passenger in the row in front of me was listening to a political speech on his phone at full volume with no headphones and it was disturbing all of the passengers around him for several rows. I asked 2 of the flight attendants to speak to this passenger but they only shrugged. It was obvious that they were afraid there might be conflict and would not say anything. I had to take it upon myself to tell the passenger that he needed to turn it off or wear headphones as it was disturbing everyone around him not wearing their own headphones. I was very disappointed in the United flight attendants.

Amazing comfortable chairs great snacks super friendly staff pilots did excellent job. Smooth sailing all the way. Definitely be flying United more.

I liked that handicap assistance was right inside the door. I was able to get help right away. It is stressful when I have to think of flying and know that an airport is a large place and there is always a great distance to get to the loading area. My walking is not great anymore. With so many people flying, it is so great to have someone to assist you. I am very grateful for the help.

Uncomfortable seats, spotty WiFi, only Biscoff for snack (no one likes those).

Booked flight at 8pm Sunday evening. Flight posted delay from 5:00 to 7:46AM Monday morning. At 12:26 AM (after I was asleep) pulled flight forward to 6:21AM. Had to scramble in morning to make the flight. Barely did

American Airlines flights are always delayed for some reason. It took 9 hours today from Atlanta to Austin. I will go back to Delta.

So overall the flight was just average and nothing special. They overbooked some of the flights and they ended up running out of overhead storage space so we had to check our carry-ons which wasn't terrible but we were inconvenienced because of the second connecting flight with a long layover we couldn't get our bags until the final destination. Most of the flight attendants were pretty good and overall the meals were not that great because the chicken was dry and overcooked. They also didn't provide butter or any kind of spread with the bread which is cheap and concerning. The American airlines staff at the check-in counter was kind of unprofessional because this lady just started singing in the middle of checking us in and that's weird. The worst part of the flights was the terrible conditions of the bathrooms which were unclean and did not have toilet paper or toilet tissue available which is kind of insane for a 14-hour and 8 and 1/2 hour flight.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Very disappointing. Flight was delayed by 1.5 hours and food options are very underwhelming even for first class seats (same food given to economy seats)

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

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

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

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.

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.

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

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.

My first flight was delayed 5 hours. The 2nd flight was canceled til the next day and the never even tried to compensate for it. Worse I was delayed again on the flight the rebooked me on.

My flight was canceled I was promised a reginf still not received.

They canceled flight. Hard to believe there was even a plane incoming for us to get on

Horrendous. I do not recommend Frontier. The passengers lack manners and decency, and the flight attendants lack professionalism. If I wasn’t in a bind to fly with 48 hours notice for a job interview, I would not have selected a flight with Frontier and I never plan to fly with them in the future.

I was not permitted on my flight and had to purchase another flight ticket to Las Vegas.

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

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