$57 Find Cheap Flights from New York 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 New York to Boulder departing on 1/27. 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.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$131
Overall average: $262
Frontier
Thu 1/8Thu 1/15
JFK - DEN • Non-stop
Cheapest non-stop
$132
Typical prices: $194-$340
Multiple Airlines
Mon 1/12Thu 1/15
JFK - DEN • Non-stop
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from New York to Boulder (NYC-DEN)

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

Thu, Jan 8 - Thu, Jan 15
Frontier Logo
1:00 pm - 3:33 pm
JFK
-
DEN
4h 33mnonstop
Frontier Logo
6:49 pm - 1:13 am
DEN
-
JFK
28h 24m2 stops
$131Frontier
Fri, Feb 20 - Tue, Feb 24
Frontier Logo
4:35 pm - 9:49 pm
LGA
-
DEN
7h 14m1 stop
Frontier Logo
4:50 pm - 11:03 am
DEN
-
LGA
16h 13m1 stop
$131Frontier
Mon, Jan 12 - Thu, Jan 15
Multiple Airlines Logo
8:00 am - 10:42 am
JFK
-
DEN
4h 42mnonstop
Multiple Airlines Logo
9:50 am - 3:25 pm
DEN
-
JFK
3h 35mnonstop
$132Multiple Airlines
Sun, Jan 11 - Wed, Jan 14
Multiple Airlines Logo
8:39 pm - 12:21 pm
LGA
-
DEN
17h 42m2 stops
Multiple Airlines Logo
4:27 pm - 10:00 pm
DEN
-
LGA
3h 33mnonstop
$132Multiple Airlines
Fri, Jan 16 - Thu, Jan 22
Frontier Logo
10:55 pm - 1:37 am
LGA
-
DEN
4h 42mnonstop
Frontier Logo
6:00 am - 3:59 pm
DEN
-
LGA
7h 59m1 stop
$133Frontier
Wed, Dec 31 - Mon, Jan 12
Frontier Logo
10:55 pm - 1:23 am
LGA
-
DEN
4h 28mnonstop
Frontier Logo
4:25 pm - 10:00 pm
DEN
-
LGA
3h 35mnonstop
$134Frontier
Tue, Jan 6 - Sun, Jan 11
Frontier Logo
1:00 pm - 3:33 pm
JFK
-
DEN
4h 33mnonstop
Frontier Logo
5:17 pm - 11:59 am
DEN
-
JFK
16h 42m1 stop
$135Frontier
Fri, Jan 9 - Wed, Jan 14
Multiple Airlines Logo
8:54 am - 5:59 pm
LGA
-
DEN
11h 05m1 stop
Multiple Airlines Logo
4:27 pm - 10:00 pm
DEN
-
LGA
3h 33mnonstop
$135Multiple Airlines
Sun, Jan 25 - Wed, Jan 28
Frontier Logo
6:20 am - 12:19 pm
LGA
-
DEN
7h 59m1 stop
Frontier Logo
7:30 am - 3:59 pm
DEN
-
LGA
6h 29m1 stop
$136Frontier
Sat, Jan 24 - Mon, Jan 26
American Airlines Logo
1:30 pm - 8:53 pm
EWR
-
DEN
9h 23m2 stops
American Airlines Logo
6:23 am - 4:29 pm
DEN
-
EWR
8h 06m1 stop
$202American Airlines
Useful Info

Good to know

Low seasonNovember
Cheapest flight$57
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Newark Liberty Airport to Denver

When to book flights from New York to Boulder

Are your dates flexible? Find out the best times to travel from New York 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 New York to Boulder: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from New York to Boulder 
DavidFlew with JetBlue
JFK
-
DEN
Jan 2025
JetBlue leaves from JFK which can be a plus or minus depending on your plans in New York. Arrive early and check out the TWA hotel—with a great public lounge, bar, and food court in the restored 1960’s Eero Saarinen-designed building outside of terminal 5. The AirTran accepts OMNY tap to pay with your phone or credit card, take it to Jamaica station to transfer to the LIRR to go to Penn Station in Manhattan or check the MTA TrainTime app for schedules and tickets for other destinations.
JeffreyFlew with Delta
JFK
-
DEN
Jan 2024
Leave a lot of time to get to your gate.

FAQs for booking flights from New York to Boulder

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

    When flying out of New York you’ll be using one of these airports: Newark, New York John F Kennedy Intl or New York LaGuardia. 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 New York to Boulder take?

    Direct flights cover the 1,609 miles separating New York and Boulder in about 4h 22m.

  • How many flights are there between New York and Boulder?

    65 direct flights run between New York and Boulder on a daily basis. On average, there are about 458 departures each week.

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

    Consider leaving on a Tuesday and avoid Saturdays if you are looking for the best rates. For your return to New York, 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 New York 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 New York to Boulder.

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

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

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

    In the last 72 hours, the cheapest one-way ticket between New York and Boulder found on KAYAK was with Frontier for $40. Frontier offered a round-trip connection from $54 and JetBlue from $113.

Top tips for finding cheap flights from New York to Boulder

  • There is no airport in Boulder. Instead, you’ll be flying into Denver Airport when flying between New York and Boulder.
  • The cheapest flight from New York to Boulder was found 27 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 October.

Reviews of the top 5 airlines serving New York to Boulder

 
Need help choosing which airline to fly with from New York 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
SouthwestOverall score based on 4253 reviews
7.5Entertainment
7.0Food
8.0Comfort
8.6Crew
8.1Boarding
Airline reviews

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

8.0 ExcellentRussell, Dec 2025
SAN - OAK
Read more Southwest reviews

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

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

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

I truly love flying with Delta. They have always treated me with the upmost respect

The flight was great. The gate location was way to far away!!!

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

I believe that a four-hour trip should have a meal. Delta had none.

Was charged for my luggage despite having been on one ticket from an international flight. Too tired to argue after 15 hours on flight. Was charged for rechecking it at JFK airport. Not sure why those off Kenya Airways were required to do that.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

At first, we were on the runway for about an hour, literally. The Captain did explain that the Control Tower just had a change shift (sounds like an unrealistic excuse) and then that we had to change a runway. A regular economy seat is made for 12 yo twiggy. I understand Delta wants to push for an upgrade, but after sitting in a Comfort seat and in First class. I would say First class is not worthy of my money. The landing was delayed because of the weather in NYC, I don't hold that against Delta, of course. The Captain did alert us to that upon takeoff in Vegas and again as we reached NY.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

Survey sent before we actually left. Delay after delay. Now a crew problem.

I love flying with United. Unfortunately, I flew on an older plane with minimal upgraded technology (no Bluetooth functionality or handy charging ports). Otherwise, the flight was great and even arrived early.

They changed my seats after I checked in and I was stressed from the time I saw that information until just before boarding, when the gate attendant fixed it, but it shouldn't have happened. And if it couldn't be prevented, then the people on the phone I spoke with should have done something to help, which they did not, nor did they offer me compensation, just meaningless apologies.

Smooth flight, especially take off and landing, and great crew on board. Really loved the stroopwaffles!

Deplaning was delayed because of Jetbridge equipment issues in MKE, causing an issue on an otherwise great flight.

Not really their fault, but a 4.5 hour delay is pretty brutal

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

No internet on a flight over three hours in this age is criminal. Staff inattentive and dismissive

Worst flight experience ever flights canceled. JetBlue told us just did not even bother standing in line to come back in one and a half hours then without any information we had to go pick up all of our luggage and spend over $2000 in accommodation just to get home. JetBlue said that the next flight available for us to get home would be three days later. Absolutely absurd hasn’t offered to give us any compensation do not fly JetBlue horrible company. They said it was based on the weather and the weather is great in all locations that we would’ve been flying to total hoax. I think it’s a conspiracy theory.

flight was delayed for hours with no explanation. The plane was a very old aircraft.

The flight departed more than 1 hour late. Leg room is bigger than most airlines

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

No music app working: no economy meal on five hour flight; hour on tarmac at the end waiting for a gate. Flight itself was smooth and easy.

Communication with the customer and stay is important. Staff off with a minor inconvenience but it worked out of course. Also this was a very old Mint Class plane. They snuck this one in on us. The updated aircraft are much better.

The flight itself was fine, but the boarding process was extremely frustrating. There is no one scanning boarding passes - passengers just scan themselves and enter the jetway. By the time my husband and I got on the plane and were halfway to our seats they determined there were too many bags on the plane and everything at that point needed to be checked. This created a lot of unnecessary chaos. They should have alerted people before getting on the plane that they would need to start checking bags instead of waiting until people were already on the plane.

In flight on demand didn't work at our seats. Only a single beverage/snack run.

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!!!

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.

The worst. They don’t follow procedure for boarding per group. Flight got delayed for no understandably reasons, they changed our destination from PR to Miami, left us inside a plane for more than 8 hours, then cancelled flight in Miami leaving us stranded. Poorly managed re-accommodation for a new flight and overnight stay so I have to spend in a new ticket and my own hotel room to been able to get to my office next day. Lost 2 days of work and as a doctor, patients loosing their appointments. to other flights and besides

I was 2 hr arrive in the airport and 45 min in the line . After take to my turn . The agent tell me I’m later . I can not board . So my vacation was going to the floor . Just for their bad customer service agent in the airline

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 New York to Boulder

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