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$92+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
NYC — DEN
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
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 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 August 21, 2025.

Round-trip from

$132
(Booking.com)

One-way from

$92
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$318
From New York (NYC) to Boulder
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One-way flight from New York (NYC) to Boulder
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 21, 2025.

This Booking.com deal was found by Cheapflights users on 8/21. 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 10/310:56 pmLGA - DEN
Nonstop4h 08mFrontier
Mon 10/610:55 amDEN - LGA
1 stop27h 34mFrontier
Deal found 8/21$132
This Frontier deal was found by Cheapflights users on 8/21. 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 9/115:30 pmLGA - DEN
1 stop6h 01mFrontier
Fri 9/124:14 pmDEN - LGA
Nonstop3h 57mFrontier
Deal found 8/21$135
This Cheapflightsfares deal was found by Cheapflights users on 8/21. 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.
Sun 8/3110:50 pmLGA - DEN
Nonstop4h 20mFrontier
Sat 9/134:14 pmDEN - LGA
Nonstop3h 57mFrontier
Deal found 8/21$136
This Frontier deal was found by Cheapflights users on 8/21. 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 9/1210:56 pmLGA - DEN
Nonstop4h 08mFrontier
Sat 9/1312:59 amDEN - LGA
1 stop7h 34mFrontier
Deal found 8/21$137
This Frontier deal was found by Cheapflights users on 8/21. 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.
Sun 8/3110:50 pmLGA - DEN
Nonstop4h 20mFrontier
Mon 9/84:14 pmDEN - LGA
Nonstop3h 57mFrontier
Deal found 8/21$138
This CheapOair deal was found by Cheapflights users on 8/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/313:30 pmJFK - DEN
Nonstop4h 26mFrontier
Sun 11/29:15 amDEN - JFK
1 stop23h 14mFrontier
Deal found 8/21$138
This Mytrip deal was found by Cheapflights users on 8/21. 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.
Thu 9/410:56 pmLGA - DEN
Nonstop4h 08mFrontier
Sun 9/76:55 pmDEN - LGA
1 stop25h 19mFrontier
Deal found 8/21$139
This Priceline deal was found by Cheapflights users on 8/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/313:30 pmJFK - DEN
Nonstop4h 26mFrontier
Mon 11/38:39 amDEN - JFK
Nonstop3h 51mFrontier
Deal found 8/20$139
This Mytrip deal was found by Cheapflights users on 8/21. 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.
Thu 9/410:56 pmLGA - DEN
Nonstop4h 08mFrontier
Tue 9/98:00 amDEN - LGA
1 stop10h 59mFrontier
Deal found 8/21$140
This Priceline deal was found by Cheapflights users on 8/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2010:56 pmLGA - DEN
Nonstop4h 08mFrontier
Fri 9/2612:04 amDEN - LGA
1 stop9h 57mFrontier
Deal found 8/21$141
This Priceline deal was found by Cheapflights users on 8/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/221:00 pmJFK - DEN
Nonstop4h 24mFrontier
Sun 10/2612:59 amDEN - JFK
1 stop9h 00mFrontier
Deal found 8/21$141
This Priceline deal was found by Cheapflights users on 8/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3010:50 pmLGA - DEN
Nonstop4h 20mFrontier
Thu 9/41:12 pmDEN - LGA
1 stop8h 45mFrontier
Deal found 8/21$142

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 August 21, 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 9/5

11:30 am-8:47 pm

1 stop11h 17m

Denver Intl

Mon 9/8

10:55 am-4:29 pm

1 stop27h 34m

$152

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Fri 9/26

10:56 pm-1:04 am

Nonstop4h 08m

Denver Intl

Mon 9/29

4:14 pm-10:11 pm

Nonstop3h 57m

$155

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Sun 8/31

10:50 pm-1:10 am

Nonstop4h 20m

Denver Intl

Thu 9/4

4:14 pm-10:11 pm

Nonstop3h 57m

$159

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Mon 9/8

12:56 pm-11:13 pm

1 stop12h 17m

Denver Intl

Sat 9/13

12:59 am-10:33 am

1 stop7h 34m

$162

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Wed 10/1

12:59 pm-8:09 am

1 stop21h 10m

Denver Intl

Sat 10/4

12:59 am-10:33 am

1 stop7h 34m

$162

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Tue 10/14

6:30 am-11:59 am

1 stop7h 29m

Denver Intl

Sat 10/18

10:01 am-7:00 pm

1 stop6h 59m

$163

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Thu 9/11

11:30 am-8:47 pm

1 stop11h 17m

Denver Intl

Mon 9/22

8:11 am-8:59 pm

1 stop10h 48m

$170

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Sun 9/14

10:56 pm-1:04 am

Nonstop4h 08m

Denver Intl

Wed 9/17

4:14 pm-10:11 pm

Nonstop3h 57m

$170

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Tue 10/7

10:55 pm-1:08 am

Nonstop4h 13m

Denver Intl

Tue 10/14

4:08 pm-10:00 pm

Nonstop3h 52m

$173

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Fri 9/12

5:59 pm-8:19 pm

Nonstop4h 20m

Denver Intl

Tue 9/23

6:25 am-12:09 pm

Nonstop3h 44m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

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 August 8, 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 August 21, 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 December 16, 2024.

Travelers seeking maximum savings on their New York to Boulder flight should consider departing on Tuesday 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 August 21, 2025.

The most flights from NYC to BD9 are scheduled on a Thursday (59 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).

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 August 21, 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.
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

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
Southwest
8.0
Very good
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

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
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

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
United Airlines
7.4
Good
8,930 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

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
JetBlue
7.2
Good
2,916 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

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
Frontier
5.8
Fair
3,207 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

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, Frontier can have you in Boulder from New York in 4h 54m. Airlines will cover a distance of 1621 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $92. Users have also found prices from $94 and $95 on United Airlines 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 New York John F Kennedy Intl - Denver Intl, Newark - 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 LATAM Airlines (85%), TAP AIR PORTUGAL (73%) and Delta (67%).

  • 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 $564, our data indicates the cheapest price to be $100. The most popular route (New York John F Kennedy Intl - Denver Intl), is priced around $132.

  • 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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$85Average$213FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$118Average$322FlexibilityNo cancel feeOn-time62%
DeltaCheapest$140Average$352FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$186Average$380FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$196Average$407FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$209Average$435FlexibilityNo cancel feeOn-time69%

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