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$112+ Cheap flights from New York, NY (NYC) to Boulder, CO

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
NYC — DEN
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: The best prices from New York to Boulder are usually found in September or October, booked 75 days in advance, depart on a Friday or Wednesday and return on a Friday

Cheap flight deals from New York to Boulder

Keep the following information in mind while searching for New York to Boulder flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$235
(Cheapflightsfares)

One-way from

$112
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$356
Provider with most accurate pricing for New York (NYC)-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Denver Intl flights.
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From New York (NYC) to Boulder
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One-way flight from New York (NYC) to Boulder
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Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from New York to Boulder

Cheapest flights from New York to Boulder
Explore the most affordable flight options available from New York to Boulder. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/310:55 pmLGA - DEN
Nonstop4h 22mFrontier
Tue 6/104:14 pmDEN - LGA
Nonstop3h 51mFrontier
Deal found 3/27$235
This Delta deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/37:25 amLGA - DEN
Nonstop4h 25mDelta
Wed 6/116:40 amDEN - LGA
Nonstop3h 46mDelta
Deal found 3/27$237
This Frontier deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/11:00 pmJFK - DEN
1 stop12h 17mFrontier
Sun 5/41:33 pmDEN - JFK
1 stop13h 57mFrontier
Deal found 3/27$238
This Delta deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/98:00 amJFK - DEN
Nonstop4h 44mDelta
Sat 4/126:10 amDEN - JFK
Nonstop3h 53mDelta
Deal found 3/27$242
This American Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/105:00 pmJFK - DEN
1 stop7h 56mAmerican Airlines
Tue 6/1011:59 pmDEN - JFK
1 stop8h 07mAmerican Airlines
Deal found 3/27$251
This American Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/244:59 pmLGA - DEN
1 stop6h 57mAmerican Airlines
Sat 5/2411:59 pmDEN - LGA
1 stop7h 14mAmerican Airlines
Deal found 3/27$251
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2611:21 amJFK - DEN
1 stop8h 21mSun Country Air
Mon 4/285:30 pmDEN - JFK
1 stop14h 53mSun Country Air
Deal found 3/27$255
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1211:29 amJFK - DEN
1 stop7h 58mMultiple Airlines
Mon 5/1212:30 amDEN - JFK
1 stop7h 55mMultiple Airlines
Deal found 3/27$262
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/97:15 amLGA - DEN
Nonstop4h 33mUnited Airlines
Tue 4/223:51 pmDEN - LGA
Nonstop3h 48mUnited Airlines
Deal found 3/26$262
This Mytrip deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/56:59 amEWR - DEN
2 stops12h 28mMultiple Airlines
Thu 5/88:21 amDEN - EWR
1 stop22h 44mMultiple Airlines
Deal found 3/27$269
This Mytrip deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/39:55 amEWR - DEN
1 stop23h 56mAllegiant Air
Mon 6/94:53 pmDEN - EWR
1 stop14h 12mAllegiant Air
Deal found 3/27$270
This American Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/175:59 amEWR - DEN
1 stop9h 50mAmerican Airlines
Wed 4/238:00 amDEN - EWR
1 stop9h 00mAmerican Airlines
Deal found 3/27$276

Cheapflights Fare Finder

Customize your flight search to find flights from New York to Boulder that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from New York to Boulder that are best for you.

Fly from

New York

Fly to

Boulder

Route

Depart

Return

Price

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Tue 6/3

10:55 pm-1:17 am

Nonstop4h 22m

Denver Intl

Tue 6/10

4:14 pm-10:05 pm

Nonstop3h 51m

$235

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Tue 6/3

7:25 am-9:50 am

Nonstop4h 25m

Denver Intl

Wed 6/11

6:40 am-12:26 pm

Nonstop3h 46m

$237

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Thu 5/1

1:00 pm-11:17 pm

1 stop12h 17m

Denver Intl

Sun 5/4

1:33 pm-5:30 am

1 stop13h 57m

$238

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Wed 4/9

8:00 am-10:44 am

Nonstop4h 44m

Denver Intl

Sat 4/12

6:10 am-12:03 pm

Nonstop3h 53m

$242

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Tue 6/10

5:00 pm-10:56 pm

1 stop7h 56m

Denver Intl

Tue 6/10

11:59 pm-10:06 am

1 stop8h 07m

$251

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Sat 5/24

4:59 pm-9:56 pm

1 stop6h 57m

Denver Intl

Sat 5/24

11:59 pm-9:13 am

1 stop7h 14m

$251

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Sat 4/26

11:21 am-5:42 pm

1 stop8h 21m

Denver Intl

Mon 4/28

5:30 pm-10:23 am

1 stop14h 53m

$255

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Mon 5/12

11:29 am-5:27 pm

1 stop7h 58m

Denver Intl

Mon 5/12

12:30 am-10:25 am

1 stop7h 55m

$262

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Wed 4/9

7:15 am-9:48 am

Nonstop4h 33m

Denver Intl

Tue 4/22

3:51 pm-9:39 pm

Nonstop3h 48m

$262

NewarkDenver

EWR - DEN

EWRDEN

Newark

Mon 5/5

6:59 am-5:27 pm

2 stops12h 28m

Denver Intl

Thu 5/8

8:21 am-9:05 am

1 stop22h 44m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 50 results
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Best time to book a flight from New York to Boulder

Have a flexible travel schedule? Discover the best time to fly to Boulder from New York with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from New York to Boulder

How far ahead should I book a flight from New York to Boulder?

Use this chart to determine the optimal time to book a round-trip flight from New York to Boulder. Price data was last updated on March 21, 2025.

The price you pay for your flight from New York to Boulder may vary depending on when you book. For the best chance of a lower fare, look to book 75 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from New York to Boulder?

Currently, October is the cheapest month in which you can book a flight from New York to Boulder (average of $197). Flying from New York to Boulder in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from NYC to BD9?

Find hourly flight availability from New York to Boulder. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from New York to Boulder as you normally would.

What is the cheapest day to fly from New York to Boulder?

Use this chart to determine the cheapest time to fly round-trip from New York to Boulder. Price data was last updated on June 30, 2024.

Travelers seeking maximum savings on their New York to Boulder flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from New York to Boulder

Explore weekly flight availability from New York to Boulder. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 28, 2025.

The most flights from NYC to BD9 are scheduled on a Friday (46 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Boulder by month

Plan your trip to Boulder by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boulder ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Boulder when rainfall is around 0.5 in.

Temperature in Boulder by month

Plan your trip to Boulder by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boulder, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Boulder

Get insights into the airlines that provide service to Boulder. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boulder. Reviews last updated March 28, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from New York to Boulder. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Hawaiian Airlines
7.9
Good
2,336 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from New York to Boulder. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from New York to Boulder one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $114. Users have also found prices from $117 and $118 on Allegiant Air and Frontier, respectively.

  • What are the most popular routes from New York to Boulder?

    The most popular flight routes from New York to Boulder are Newark - Denver Intl, New York John F Kennedy Intl - Denver Intl and New York LaGuardia - Denver Intl.

  • What are the most reliable airlines from New York to Boulder?

    The top 3 most reliable airlines when flying from New York to Boulder are TAP AIR PORTUGAL (88%), ITA Airways (85%) and Delta (83%).

  • What are the cheapest flights from New York to Boulder?

    Looking for the cheapest flight from New York to Boulder? While on average our users pay $594, our data indicates the cheapest price to be $113. The most popular route (Newark - Denver Intl), is priced around $250.

  • Can I find deals for flights from New York to Boulder that include hotel bookings?

    Yes. In addition to deals on New York to Boulder flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from New York to Boulder?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from New York to Boulder.

  • Can I find deals for business class flights from New York to Boulder?

    Yes. Cheapflights offers flight deals from New York to Boulder by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from New York to Boulder?

    Currently, October is the cheapest month in which you can book a flight from New York to Boulder (average of $197). Flying from New York to Boulder in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for New York to Boulder

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from New York to Boulder

Discover the top 6 airlines that operate flights from New York to Boulder. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$66Average$194FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$118Average$317FlexibilityNo cancel feeOn-time62%
DeltaCheapest$150Average$389FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$184Average$388FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$194Average$431FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$209Average$443FlexibilityNo cancel feeOn-time63%
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