$653 Find Cheap Flights 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 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.
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Cheap Flight Deals to Boulder

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights 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.

Recent return flight deals to Boulder

Recommended return deals departing in the coming months from the most popular airlines that fly to Boulder.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
06:25 - 17:20AKL-DEN
30h 55m2 stops
18:00 - 10:00DEN-AKL
21h 00m1 stop
$1,393Air Canada
Find Deal
Fri, 7 Mar - Sun, 16 Mar
06:25 - 17:20AKL-DEN
30h 55m2 stops
18:00 - 17:20DEN-AKL
28h 20m2 stops
$1,397Air Canada
Find Deal
Fri, 7 Mar - Sun, 16 Mar
13:55 - 09:48AKL-DEN
37h 53m2 stops
10:00 - 12:40DEN-AKL
32h 40m2 stops
$1,427
Find Deal
Fri, 9 May - Fri, 16 May
13:30 - 23:57AKL-DEN
28h 27m3 stops
18:34 - 14:00DEN-AKL
25h 26m2 stops
$1,618
Find Deal
Sat, 10 May - Sun, 18 May
14:50 - 18:05AKL-DEN
22h 15m1 stop
20:55 - 09:10DEN-AKL
17h 15m1 stop
$1,781United Airlines
Find Deal
Tue, 11 Mar - Mon, 17 Mar
20:15 - 06:54AKL-DEN
28h 39m2 stops
21:21 - 06:00DEN-AKL
38h 39m1 stop
$1,811United Airlines
Find Deal
Sat, 10 May - Sun, 18 May
19:45 - 10:08AKL-DEN
32h 23m1 stop
07:46 - 06:00DEN-AKL
28h 14m1 stop
$1,836Air New Zealand
Find Deal
Fri, 9 May - Fri, 16 May
20:15 - 22:15AKL-DEN
20h 00m1 stop
05:20 - 06:00DEN-AKL
30h 40m1 stop
$1,963Air New Zealand
Find Deal
Sat, 10 May - Sun, 18 May
06:00 - 12:46AKL-DEN
24h 46m2 stops
13:18 - 14:05DEN-AKL
30h 47m2 stops
$2,394Qantas Airways
Find Deal
Fri, 18 Apr - Sat, 3 May
20:35 - 12:46AKL-DEN
34h 11m2 stops
18:40 - 14:05DEN-AKL
25h 25m2 stops
$7,517Qantas Airways
Find Deal
Sun, 6 Apr - Thu, 17 Apr

Good to know

Low season

April

High season

September

Cheapest flight

$653
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly (8% more expensive on average)
Flight from Auckland to Denver

FAQs - booking Boulder flights

  • How to fly to Boulder?

    You cannot fly directly to Boulder. KAYAK recommends you fly to Denver Intl (DEN) (53.76 km from Boulder). From there you can rent a car or get a taxi.

  • What airports are near Boulder?

    The closest airport is Denver Intl (DEN) (53.76 km). KAYAK recommends you fly to Denver Intl.

  • How far is Denver Intl Airport from central Denver?

    The distance between Denver Intl Airport and the city centre of Denver is 30 km.

  • What is the name of Denver’s airport?

    There is only 1 airport in Denver, called Denver Intl Airport (DEN). It can also be referred to as Denver or Denver Intl.

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

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

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

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Boulder

  • There is no major airport in Boulder. It is instead served by Denver Intl Airport.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be August, September and October. The cheapest month to fly from New Zealand is November.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boulder flight deals.
See more tips

Top 4 airlines flying to Boulder

Need help choosing which airline to fly with from New Zealand 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.
7.9
Air New ZealandOverall score based on 467 reviews
7.9Comfort
8.2Boarding
7.4Entertainment
8.5Crew
7.2Food
Airline reviews

The flight we had booked was cancelled due to bad weather conditions, but we were lucky to arrive at the airport quite early and got a seat on an earlier flight. The flight was mostly nice, but there were some hefty turbulences towards Queenstown. One of the passengers behaved hysterically. It would have been great if the crew had done something to calm her.

8.0 ExcellentSamuel, Jan 2025AKL - ZQN
Read more Air New Zealand reviews

The flight we had booked was cancelled due to bad weather conditions, but we were lucky to arrive at the airport quite early and got a seat on an earlier flight. The flight was mostly nice, but there were some hefty turbulences towards Queenstown. One of the passengers behaved hysterically. It would have been great if the crew had done something to calm her.

Sitting in an aisle seat equals getting hit by food cart and spilled on multiple times Food: gross and minimalistic Crew: frumpy and kurt Sound on multiple entertainment platforms poor Not an earplug problem, system soundboard poor

Major hassle with the weight of carryon luggage Having to repack bags at airport Not an issue in most of world Ridiculous issue considering the 400 pound gentleman sitting behind us

Overall experience was poor. In general crew was polite in speaking but that was all about it. I am vegetarian so I always carry a cup noodle box with me just in case. So I pressed "CALL" button for hot water for my cup noodle on my seat and waited for 10-15 minutes but nobody came. I personally took the box and went all the way to back of the plane. When I requested stewardess to put hot water in my cup noodle she refused as it was a "safety" hazard. I told her that you always serve coffee and tea these are also hot. But she still refused. I went back to my seat and from the seat I ordered hot water and it was brought to me without any problem. I poured THAT hot water in my cup noodle and ate. I was sitting in seat 36A, which was 2nd row in economy class. After eating my noodle I took the box and went 2 rows in the front where there was a kitchen to throw it. Again the stewardess there told me she didn't have a waste bin there and asked me to go back of the plane and throw it there. Tell me if above experiences are 'ok' for your airline??

Everything very good except the sofa couch not as comfortable as expected.

Liked the non-stop option, can always use more leg room!

Wonderful Airlines…our American Airlines could learn from ANZ. From boarding to landing everyone was professional and gracious. Kiwi’s really are the nicest of all people! Thank you

typical long haul economy flight. Food was mediocre, inflight service was average. Offered in flight snacks but in seat ordering didn't work. Entertainment was good.

Would have been nice to have decaf coffee as an option, and perhaps a scone

Overall, a great experience from food and crew. The only setback was that this was the Second flight from Air New Zealand within a week that was an hour late for boarding.

It’s a two prop flight so I had problems with my ears on re- entering ! But otherwise fine

Complaint is with American Airlines which delayed our flight from salt lake to Dallas reaulting in us missing our connection to Brisbane. Had to spend 24 hours in Dallas to wait for the next flight. Awful experience and ruined my wife’s birthday.

The food was terrible. And the flight attendants were very rude. One flight attendant wouldn’t help a passenger lift their carry-on. Another flight attendant wouldn’t give a man an extra blanket. And they walked by not even looking at the passengers to see if they needed a glass of water.

The old Plane had not been cleaned properly in a long time.

I disliked the fact that they forced people to put up their seats during meal service

Headphone jacks worked poorly, seat recline was broken. Planes were rundown.

American Airlines was their usual junk service — but at least it got us down to LA. I was more irritated that while they codeshare with Alaska Airlines in Seattle, they could not out our flight on one of these, opting for one of the small SkyWest operated American Eagle flights — and causing a 14 hour layover. Which I accepted due to a $2000 difference in airfare — that said it was irritating for a flight that usually would have cost around $100 extra, if that.

same as previous comments. i hate being on a plane that long. no problems w/anything else.

nothing to complain about w/the food, and professionalism of the crew. i just cant stand being on a flight for that long of a time.

Everything was great from the staff to the seats and food. The plane was timely taking off and landing.. I couldn't have asked for a better experience (especially on such a long flight)

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Not as good as expected Air Can needs to improve totally rated on internet as worst

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

It was 4 hours late. Almost missed my connecting flight no food or drinks on connecting flight. Overall terrible experience

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

I was at the back of the plane with earphones, and I could still hear the chatty flight attendants; I wasn't able to sleep at all.

Terrible all around. Flight was late and airplane was very uncomfortable. The crew were unhelpful and hid in the back. Did zero work. No entertainment.

Because I am quite tall a bit more leg room would have been more comfortable. Out of three seats I had the middle one, unfortunately.

I like the free beer and wine but not the delays to the departure time.

Never again flying economy on Rouge!!! Literally like sardines!!! Will try to change to better seats 3 seat arrangement only so so if traveling with family. Who wants to squished to stranger!!😖 Can’t say enough bad about this!!!

I booked and paid extra for exit door seats also pre paid for my luggage air Canada changed plains and I never got what I paid for and they made me pay for luggage again they also did this to my wife. They are the most unorganized company I have ever dealt with. I am sure I will never see the extra money I paid for the seats or the recharge for the luggage. They are subsidized by the taxpayers and don’t give a dam just a horrible way to do business

Overall the experience was excellent. Plane was clean but more importantly quiet. Recently, I’ve noticed that Airbus planes seem quieter than their Boeing counterparts. I definitely prefer flying in an Airbus plane.

Delay after delay.......they are awful Delayed because of cold wx really!!!!! We live in Canada

My one complaint was that while we boarded using the standard enclosed gangway, when we arrived at SEATAC, the ground crew were slow to hook up the stairs. After reaching the tarmac we had to walk up a long ramp all outside in 35° weather. We just came from Bali and did not have warm weather clothes. This was in addition to having to collect our bags in Vancouver, take them through security again and then having to show our passports 4 more times all within the Air Canada section.

So we didn't actually go. We were hoping to go for the Inauguration of the first female president. When That Guy got elected, we bailed. Unfortunately, we got basically none of our money back, despite having travel insurance. Would not fly with Air Canada again unless I had to.

flight was delayed, there was open communication about the delay the delay pushed way past the posted delay time and

Book Cheap Boulder Plane Tickets

Recent return flight deals

7/3Fri
2 stopsAir Canada
30h 55mAKL-DEN
16/3Sun
1 stopAir Canada
21h 00mDEN-AKL
$1,393
7/3Fri
2 stopsAir Canada
30h 55mAKL-DEN
16/3Sun
2 stopsAir Canada
28h 20mDEN-AKL
$1,397
9/5Fri
2 stops
37h 53mAKL-DEN
16/5Fri
2 stops
32h 40mDEN-AKL
$1,427
10/5Sat
3 stops
28h 27mAKL-DEN
18/5Sun
2 stops
25h 26mDEN-AKL
$1,618
11/3Tue
1 stopUnited Airlines
22h 15mAKL-DEN
17/3Mon
1 stopUnited Airlines
17h 15mDEN-AKL
$1,781
10/5Sat
2 stopsUnited Airlines
28h 39mAKL-DEN
18/5Sun
1 stopUnited Airlines
38h 39mDEN-AKL
$1,811
9/5Fri
1 stopAir New Zealand
32h 23mAKL-DEN
16/5Fri
1 stopAir New Zealand
28h 14mDEN-AKL
$1,836
10/5Sat
1 stopAir New Zealand
20h 00mAKL-DEN
18/5Sun
1 stopAir New Zealand
30h 40mDEN-AKL
$1,963
18/4Fri
2 stopsQantas Airways
24h 46mAKL-DEN
3/5Sat
2 stopsQantas Airways
30h 47mDEN-AKL
$2,394
6/4Sun
2 stopsQantas Airways
34h 11mAKL-DEN
17/4Thu
2 stopsQantas Airways
25h 25mDEN-AKL
$7,517

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Recent one-way flight deals

4/3Tue
2 stops
29h 19mAKL-DEN
$653
13/3Thu
2 stops
28h 46mAKL-DEN
$660
4/3Tue
1 stopAir Canada
34h 14mAKL-DEN
$749
13/3Thu
1 stopAir Canada
21h 50mAKL-DEN
$752
4/3Tue
3 stops
28h 54mAKL-DEN
$800
11/3Tue
2 stopsQantas Airways
31h 30mZQN-DEN
$926
11/3Tue
2 stopsQantas Airways
31h 30mZQN-DEN
$928
29/3Sat
1 stopUnited Airlines
31h 13mAKL-DEN
$1,537
30/3Sun
1 stopAir New Zealand
23h 14mAKL-DEN
$1,735
4/3Tue
2 stopsUnited Airlines
29h 08mAKL-DEN
$3,644

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Last minute flights to Boulder

Last minute flight, train and bus deals

13/2Thu
multi-stop
30h 20mAKL-DEN
20/2Thu
multi-stop
41h 55mDEN-AKL
$1,478
13/2Thu
multi-stopQantas Airways
33h 07mAKL-DEN
20/2Thu
multi-stopQantas Airways
22h 31mDEN-AKL
$1,608

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Everything you need to know for your flight to Boulder

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