Boulder

$87+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
NYC — DEN
Nov 13 — Nov 201
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Find cheap flights from New York to Boulder with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from New York to Boulder are usually found in January or November, booked 75 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

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 October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$132
(Mytrip)

One-way from

$87
(Booking.com)

Popular in

December

Cheapest in

January

Average price

$282
Provider with most accurate pricing for New York (NYC)-Denver Intl flight deals.
Provider most trusted by Cheapflights users for New York (NYC)-Denver Intl flights.
From New York (NYC) to Boulder
One-way flight from New York (NYC) to Boulder
High demand for flights, 3% potential price rise
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in October 2025

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 October 14, 2025.

This Mytrip deal was found by Cheapflights users on 10/13. 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.
Fri 10/241:00 pmJFK - DEN
Nonstop4h 24mFrontier
Fri 10/319:09 amDEN - JFK
Nonstop3h 51mFrontier
Deal found 10/13$132
This Kiwi.com deal was found by Cheapflights users on 10/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1310:55 pmLGA - DEN
Nonstop4h 13mFrontier
Mon 11/171:42 pmDEN - LGA
1 stop7h 45mFrontier
Deal found 10/13$133
This Frontier deal was found by Cheapflights users on 10/13. 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.
Wed 10/294:00 pmJFK - DEN
Nonstop4h 26mFrontier
Mon 11/39:09 amDEN - JFK
Nonstop3h 51mFrontier
Deal found 10/13$133
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:30 pmLGA - DEN
1 stop11h 00mFrontier
Mon 11/312:59 amDEN - LGA
1 stop8h 30mFrontier
Deal found 10/14$134
This Frontier deal was found by Cheapflights users on 10/12. 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.
Sat 12/1311:35 amJFK - DEN
1 stop14h 16mFrontier
Mon 12/156:10 amDEN - JFK
Nonstop3h 51mFrontier
Deal found 10/12$134
This Frontier deal was found by Cheapflights users on 10/12. 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.
Tue 10/2110:55 pmLGA - DEN
Nonstop4h 13mFrontier
Mon 10/2712:59 amDEN - LGA
1 stop8h 30mFrontier
Deal found 10/12$135
This Gotogate deal was found by Cheapflights users on 10/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/271:01 pmJFK - DEN
Nonstop4h 41mFrontier
Wed 12/38:00 amDEN - JFK
1 stop8h 24mFrontier
Deal found 10/12$135
This Frontier deal was found by Cheapflights users on 10/12. 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.
Tue 11/1110:55 pmLGA - DEN
Nonstop4h 13mFrontier
Tue 11/184:08 pmDEN - LGA
Nonstop3h 52mFrontier
Deal found 10/12$136
This Frontier deal was found by Cheapflights users on 10/14. 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.
Fri 11/74:00 pmJFK - DEN
Nonstop4h 26mFrontier
Mon 11/109:09 amDEN - JFK
Nonstop3h 51mFrontier
Deal found 10/14$136
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/712:30 pmLGA - DEN
1 stop10h 58mFrontier
Mon 11/1012:59 amDEN - LGA
1 stop8h 30mFrontier
Deal found 10/14$137
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2811:00 amJFK - DEN
1 stop24h 09mFrontier
Fri 11/148:44 pmDEN - JFK
1 stop11h 19mFrontier
Deal found 10/14$137
This Booking.com deal was found by Cheapflights users on 10/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1410:55 pmLGA - DEN
1 stop20h 06mFrontier
Mon 11/1712:59 amDEN - LGA
1 stop8h 30mFrontier
Deal found 10/12$138

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 October 14, 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

Fri 12/5

6:10 pm-8:37 pm

Nonstop4h 27m

Denver Intl

Tue 12/9

11:23 am-5:01 pm

Nonstop3h 38m

$177

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Thu 11/13

8:25 am-11:05 am

Nonstop4h 40m

Denver Intl

Tue 11/18

11:50 am-5:29 pm

Nonstop3h 39m

$197

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Sat 11/8

6:59 pm-9:37 pm

Nonstop4h 38m

Denver Intl

Sun 11/9

11:59 pm-6:00 am

Nonstop4h 01m

$197

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Wed 11/5

7:00 pm-9:41 pm

Nonstop4h 41m

Denver Intl

Sun 11/16

7:10 am-12:53 pm

Nonstop3h 43m

$197

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Thu 10/30

7:00 pm-9:41 pm

Nonstop4h 41m

Denver Intl

Tue 11/11

11:59 pm-5:44 am

Nonstop3h 45m

$197

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Thu 11/6

7:00 pm-9:41 pm

Nonstop4h 41m

Denver Intl

Sat 11/15

12:20 pm-6:14 pm

Nonstop3h 54m

$197

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Sat 11/1

3:30 pm-5:48 pm

Nonstop4h 18m

Denver Intl

Mon 11/3

5:50 pm-11:34 pm

Nonstop3h 44m

$197

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Tue 1/13

5:59 pm-8:38 pm

Nonstop4h 39m

Denver Intl

Tue 1/20

7:00 am-12:48 pm

Nonstop3h 48m

$197

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Fri 1/23

6:29 pm-9:07 pm

Nonstop4h 38m

Denver Intl

Mon 1/26

3:45 pm-9:28 pm

Nonstop3h 43m

$207

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Fri 1/9

8:10 am-11:03 am

Nonstop4h 53m

Denver Intl

Sat 1/17

6:30 am-12:17 pm

Nonstop3h 47m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/13

Showing 1-10 of 60 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 October 10, 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, November is the cheapest month in which you can book a flight from New York to Boulder (average of $98). Flying from New York to Boulder in May is currently the most expensive (average of $143). 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 October 14, 2025.

A simple way to save on the total cost of your ticket is to fly from New York to Boulder in the evening. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight in the afternoon.

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 December 16, 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 afternoons 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 October 14, 2025.

The most flights from NYC to BD9 are scheduled on a Monday (59 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 on average).

How much does it cost to fly round-trip from New York to Boulder?

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 October 14, 2025.
Read through reviews of airlines operating flights from New York to Boulder, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
8.0
Very good

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.
  • How long is the flight from New York to Boulder?

    For as low as $177, Delta can have you in Boulder from New York in 4h 27m. Airlines will cover a distance of 1614 mi. All flights are typically nonstop.

  • 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 $89. Users have also found prices from $99 and $109 on United Airlines and JetBlue, respectively.

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

  • 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 (100%), LATAM Airlines (89%) and China Eastern (89%).

  • 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 $654, our data indicates the cheapest price to be $84. The most popular route (New York John F Kennedy Intl - Denver Intl), is priced around $118.

  • 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, November is the cheapest month in which you can book a flight from New York to Boulder (average of $98). Flying from New York to Boulder in May is currently the most expensive (average of $143). 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

Browse thousands of different options on Cheapflights for your next trip

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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.

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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$86Average$212FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$126Average$324FlexibilityNo cancel feeOn-time62%
DeltaCheapest$140Average$411FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$196Average$391FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$214Average$433FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$219Average$403FlexibilityNo cancel feeOn-time63%

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