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Find cheap flights to Boulder from $978

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 28/5. 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
Sat 18/5
Sat 25/5

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Low season

March

High season

May

Cheapest flight

$978
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly and prices are also 4% lower 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 from central Denver?

    The distance between Denver 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 (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.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boulder flight deals.

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.
8.2
Air New ZealandOverall score based on 670 reviews
8.1comfort
7.6food
8.8crew
8.4boarding
7.9entertainment
Airline reviews

Short flight so no entertainment, turbulence so no food service - overall flight as expected

8.0 ExcellentMichelle, Apr 2024NPL - AKL
Read more about Air New Zealand reviews

Short flight so no entertainment, turbulence so no food service - overall flight as expected

All was good, the only thing was it didn't run on time.

The staff and crew on board were excellent. Business class however, was very weird. I thought we would have individual pods, but the way it was set up was unexpected. Not very private and If you wanted to lay down, you had to have an entire bed made up for you by the crew, rather than how Delta one works where you could just lie down whenever you feel like it. It was a 16 hour flight. I chose not to have my bed made, and that turned out to be a good idea because everybody who had their bed made had to wait for the crew to roll up their mattresses. So strange!

Crew were pleasant, happy to be there and were a joy to be around. Entire operation was professional, well thought out and ran like a Swiss clock.

Couldn’t request a vegan meal somehow but I noticed other people getting them

United flight from SFO to PDX was cancelled. I will ask for a refund. Had to book on Alaska

Good food and entertainment options. Great Staff that were all welcoming and caregiving.

The recline on the seat in front of me came back so that I was staring at the top of the man’s head in front of me the whole trip. He refused to bring his seat back up twice every time he was instructed to do so and only relented when he had a tray of good in front of him. And then right back in my lap!!! Horrible man!! I complained to the staff multiple times, but no one would address the issue. Otherwise, it would have been a perfect flight.

Flight was canceled due to technical issue shortly before the check-in counters opened. Passengers were rebooked on a flight three days later. Request to be accommodated on Air Tahiti Nui could not be processed. Customer service sorted out the refund after calling and being put on hold for almost an hour.

Carring crew, nice ambiance of the cabin, comfortable beds, good food well served. We liked everything.

I was pleasantly surprised with my flight to LA with Qantas. Although seats were not the roomies, service was excellent.

Wonderful crew, good food. Absolutely loved the wine spritz and wish I could buy it!

Don’t like last minute airline change. Not able to choose seat earlier.

Enjoyed the new possibilities of in flight entertainment. Been awhile since I've flown, and that was a nice surprise. Being able to pick from such a variety was personalized and welcomed.

My bag didn’t make it but otherwise it was a great experience.

I was in premium economy. My seat didn’t recline much - it was broken. My phone charger didn’t work.

Short flight. Needed a smart phone to watch any movie.

They actually held the plane for a few minutes and had someone at the escalators from Qantas checking to see if we were almost at the gate and radioed ahead to tell them that we were on our way. We called down to the person and gave her our names, coming as fast as we could.

First time flying in Qantas. There is zero WiFi on the flight to/from Australia. Crew was great both routes - very attentive, personalized service. Pleasant staff throughout.

After flying Quantas (Prem Econ - SYD-SFO) which was Spectacular, we boarded AA flight SFO/PHL.. Prem Econ was NOT available on this flight so we were stuck in Econ - even though we paid $2600 EACH/ONE WAY for this ticket. I even had to BUY extra legroom seats - this AT LEAST should have been included on the AA flight. There were no screens in seatbacks, forcing passengers to use phones for entertainment. No water bottles were provided - only cups of water. The Quantas flight was FAR superior to the AA flight - even though we purchased Prem Econ for the FULL trip....

T hey did a great job. Flight was on time .

Positive: Entertainment via phone on the short was great and my first time. Good food and wine and head phones for free. Negative: Seat hardly reclined on the long flight. Breakfast was an egg with a bun. No egg choices and rather have something sweet like bun/jam and Youghurt.

They did get us booked on a later flight, but it made us miss our connecting flight. So, we had to stay and another state overnight with no luggage or clothes. Because they kept our luggage at airport for next flight on the next day.

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Crew is way too many times on the intercom re explaining the same thing

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

We waited too long to get water while the plane was on the Tarmac awaiting de-icing.

Easy peasy. Crew was great. Take-off and landing nice anc chill (good job by the pilot). Thank you UA!

Excellent as always. Had issues checking-in online. Please fix.

The plane was delayed coming in and on the tarmac. I was coming from another flight so it made for a very long day. The stewardess kept trying to slam the overhead bins closed and I was worried that she had damaged my new luggage. They ran out of snacks and lccdsddd me a hummus box which was nice. It took them a very long time to pick up the garbage so I could not go to the washroom and had little time. To prepare for disbarment. The TV system was hard to control from the armrest and picture wasn’t clear. The crew did apologize several times for the lateness. It took the Denver airport an unusually long time to de-ice the plane.

Fresh fuit or veg snacks would be so great, but there are two good restaurants in Denver airport. Try Etais UDIS or Freshens DIA for nutritious delicious pita sandwiches/ donairs and crepes in Freshens.

Crowded plane but it flew on time and had friendly staff

Headphones for the movies have too much bass and can't be adjusted. Almost impossible to hear. Great movie selections but can't really watch them because you can't hear them. Also the system is very slow.

This was the first AC flight in a long time that we experienced no delays or frustrations. The gate attendant was extremely polite and accommodating to my husband who has Parkinson’s disease which made boarding extremely stress free. Flight departed ON TIME and was a smooth ride. If only all my AC experiences could be like this.

The Air Canada agent was very helpful helping with my luggage and cat carrier when I went there instead of United.

United force you to download their App to do the check-in.

I didn’t like the fact that all the customs officers went to lunch so I was in line for 90 minutes due to where the staff directed me. We were told three very different reasons for why the plane was delayed. It was a crowded plane with difficult storage situations for the Carry On bags. The Air Canada airline staff were all very good and professional. I was so disappointed in my cheese and fruit box as the cheese had molded and the fruit wasn’t fresh so I couldn’t eat the majority of the food. This was the last meal I could find as the restaurants had closed when I got in to my destination. I think you could work on improving the food quality.

There was no entertainment at our seats. The flight was comfortable and we had leg room. The snack we had was really good.

Economy seats were surprisingly comfortable, and snacks not too bad. Checked luggage arrived at destination without problems. It was annoying to wait until last to board as lowest-tier seats but understand it’s difficult to gauge when loading a full plane At least checked carryon luggage seemed to come off first. Annoying to have to use app to order food/drink when wifi availability didn’t allow time for it. Advance communication would have helped Food on menu seemed highly processed and unpalatable, overpriced and over packaged. So maybe a good thing to have missed chance to order

Once again my complaint is how close the seats are together. Also, the bathrooms were not very clean by the second half of the flight.

Book Cheap Boulder Plane Tickets

Recent return flight deals

14/5Tue
2 stopsAmerican Airlines
33h 52mAKL-DEN
21/5Tue
2 stopsAmerican Airlines
30h 42mDEN-AKL
$1,938
14/5Tue
1 stopAir New Zealand
22h 04mAKL-DEN
21/5Tue
1 stopAir New Zealand
18h 55mDEN-AKL
$2,154
14/5Tue
3 stops
26h 45mAKL-DEN
21/5Tue
2 stops
26h 30mDEN-AKL
$2,188
22/6Sat
2 stopsUnited Airlines
23h 38mAKL-DEN
22/6Sat
2 stopsUnited Airlines
21h 30mDEN-AKL
$2,852
14/5Tue
2 stopsUnited Airlines
23h 40mAKL-DEN
21/5Tue
1 stopUnited Airlines
25h 23mDEN-AKL
$2,921
22/6Sat
1 stopAir New Zealand
20h 07mAKL-DEN
22/6Sat
1 stopAir New Zealand
38h 17mDEN-AKL
$3,112
17/5Fri
2 stopsDelta
28h 14mAKL-DEN
28/5Tue
2 stopsDelta
41h 51mDEN-AKL
$8,340
16/6Sun
2 stopsDelta
28h 37mAKL-DEN
27/6Thu
2 stopsDelta
47h 30mDEN-AKL
$8,394
23/4Tue
3 stopsSingapore Airlines
50h 15mAKL-DEN
4/5Sat
3 stopsSingapore Airlines
68h 55mDEN-AKL
$19,877
17/6Mon
3 stopsSingapore Airlines
37h 44mAKL-DEN
28/6Fri
3 stopsSingapore Airlines
58h 44mDEN-AKL
$19,878

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Recent one-way flight deals

28/5Tue
2 stops
49h 13mAKL-DEN
$978
28/5Tue
3 stops
40h 35mAKL-DEN
$985
20/5Mon
2 stops
57h 48mAKL-DEN
$1,004
19/5Sun
2 stopsAir Canada
34h 11mAKL-DEN
$1,027
22/5Wed
2 stopsQantas Airways
33h 32mAKL-DEN
$1,068
22/5Wed
2 stopsQantas Airways
33h 32mAKL-DEN
$1,071
22/6Sat
2 stopsAmerican Airlines
40h 25mAKL-DEN
$1,088
22/5Wed
1 stopAir New Zealand
29h 02mAKL-DEN
$1,092
4/7Thu
2 stopsAmerican Airlines
38h 03mAKL-DEN
$1,105
4/7Thu
1 stopAir New Zealand
38h 22mAKL-DEN
$1,229

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