$109+ 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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
NYC — DEN
Jul 1 — Jul 81
1 adult, Economy
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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”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 June 26, 2025.
Round-trip from | $175 (Priceline) |
|---|---|
One-way from | $109 (Priceline) |
Popular in | December |
Cheapest in | September |
Average price | $334 |
Find flight deals from New York to Boulder
Cheapest flights from New York to BoulderExplore 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 June 26, 2025.
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 June 26, 2025.
This Delta deal was found by Cheapflights users on 6/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/157:55 pmJFK - DEN
Nonstop4h 54mDelta
Tue 7/227:20 amDEN - JFK
Nonstop3h 59mDelta
Deal found 6/26![Delta logo]()
$177
This Southwest deal was found by Cheapflights users on 6/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/179:55 pmLGA - DEN
Nonstop4h 25mSouthwest
Sat 7/265:35 pmDEN - LGA
Nonstop3h 45mSouthwest
Deal found 6/25![Southwest logo]()
$177
This Expedia deal was found by Cheapflights users on 6/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1410:55 pmLGA - DEN
Nonstop4h 20mFrontier
Sat 8/164:14 pmDEN - LGA
Nonstop3h 55mFrontier
Deal found 6/25![Frontier logo]()
$178
This Trip.com deal was found by Cheapflights users on 6/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/228:18 pmJFK - DEN
Nonstop4h 41mJetBlue
Tue 7/2911:54 pmDEN - JFK
Nonstop3h 46mJetBlue
Deal found 6/24![JetBlue logo]()
$179
This Priceline deal was found by Cheapflights users on 6/26. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:59 amJFK - DEN
1 stop10h 25mFrontier
Wed 9/173:15 pmDEN - JFK
1 stop7h 28mFrontier
Deal found 6/26![Frontier logo]()
$180
This American Airlines deal was found by Cheapflights users on 6/25. 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 8/123:25 pmJFK - DEN
1 stop9h 30mAmerican Airlines
Wed 8/2010:35 amDEN - JFK
1 stop8h 25mAmerican Airlines
Deal found 6/25![American Airlines logo]()
$197
This American Airlines deal was found by Cheapflights users on 6/25. 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 7/107:27 amLGA - DEN
1 stop6h 04mAmerican Airlines
Wed 7/1612:44 pmDEN - LGA
1 stop7h 03mAmerican Airlines
Deal found 6/25![American Airlines logo]()
$199
This Delta deal was found by Cheapflights users on 6/25. 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.
Sun 9/147:30 amLGA - DEN
Nonstop4h 31mDelta
Tue 9/2311:00 amDEN - LGA
Nonstop3h 48mDelta
Deal found 6/25![Delta logo]()
$207
This Hawaiian Airlines deal was found by Cheapflights users on 6/26. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/301:00 pmJFK - DEN
1 stop10h 47mHawaiian Airlines
Wed 8/135:50 pmDEN - JFK
1 stop11h 12mHawaiian Airlines
Deal found 6/26![Hawaiian Airlines logo]()
$224
This Trip.com deal was found by Cheapflights users on 6/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1010:55 pmLGA - DEN
Nonstop4h 20mMultiple Airlines
Wed 7/164:00 pmDEN - LGA
Nonstop3h 51mMultiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$234
This Delta deal was found by Cheapflights users on 6/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/153:29 pmEWR - DEN
1 stop9h 26mDelta
Sun 8/1712:45 amDEN - EWR
1 stop5h 58mDelta
Deal found 6/26![Delta logo]()
$252
This Alaska Airlines deal was found by Cheapflights users on 6/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/85:30 pmEWR - DEN
1 stop20h 40mAlaska Airlines
Thu 9/116:17 pmDEN - EWR
1 stop22h 42mAlaska Airlines
Deal found 6/26![Alaska Airlines logo]()
$255
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 June 26, 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
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Tue 7/15
7:55 pm-10:49 pm
Nonstop4h 54m
Denver Intl
Tue 7/22
7:20 am-1:19 pm
Nonstop3h 59m
$177
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Thu 7/17
9:55 pm-12:20 am
Nonstop4h 25m
Denver Intl
Sat 7/26
5:35 pm-11:20 pm
Nonstop3h 45m
$177
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Thu 8/14
10:55 pm-1:15 am
Nonstop4h 20m
Denver Intl
Sat 8/16
4:14 pm-10:09 pm
Nonstop3h 55m
$178
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Tue 7/22
8:18 pm-10:59 pm
Nonstop4h 41m
Denver Intl
Tue 7/29
11:54 pm-5:40 am
Nonstop3h 46m
$179
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Wed 9/10
6:59 am-3:24 pm
1 stop10h 25m
Denver Intl
Wed 9/17
3:15 pm-12:43 am
1 stop7h 28m
$180
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Tue 8/12
3:25 pm-10:55 pm
1 stop9h 30m
Denver Intl
Wed 8/20
10:35 am-9:00 pm
1 stop8h 25m
$197
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Thu 7/10
7:27 am-11:31 am
1 stop6h 04m
Denver Intl
Wed 7/16
12:44 pm-9:47 pm
1 stop7h 03m
$199
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Sun 9/14
7:30 am-10:01 am
Nonstop4h 31m
Denver Intl
Tue 9/23
11:00 am-4:48 pm
Nonstop3h 48m
$207
New YorkDenver
JFK - DEN
JFKDEN
New York John F Kennedy Intl
Wed 7/30
1:00 pm-9:47 pm
1 stop10h 47m
Denver Intl
Wed 8/13
5:50 pm-7:02 am
1 stop11h 12m
$224
New YorkDenver
LGA - DEN
LGADEN
New York LaGuardia
Thu 7/10
10:55 pm-1:15 am
Nonstop4h 20m
Denver Intl
Wed 7/16
4:00 pm-9:51 pm
Nonstop3h 51m
$234
Showing 1-10 of 45 results
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 June 20, 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 June 26, 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 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 June 26, 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 (12 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 June 26, 2025.
Read through reviews of airlines operating flights from New York to Boulder, such as Breeze Airways, Alaska Airlines, and Southwest. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.4
Comfort
8.2
Food
6.8
Crew
8.8
Entertainment
6.6
Overall
8.1
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Boarding
8.4
Comfort
8.2
Food
6.8
Crew
8.8
Entertainment
6.6
Overall
8.1
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Boarding
8.4
Comfort
8.2
Food
6.8
Crew
8.8
Entertainment
6.6
Overall
8.1
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Boarding
8.4
Comfort
8.2
Food
6.8
Crew
8.8
Entertainment
6.6
Overall
8.1
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Boarding
8.4
Comfort
8.2
Food
6.8
Crew
8.8
Entertainment
6.6
Overall
8.1
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Boarding
8.4
Comfort
8.2
Food
6.8
Crew
8.8
Entertainment
6.6
Overall
8.1
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
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.
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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 June 26, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$67 | Average$204 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$124 | Average$315 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$148 | Average$375 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$190 | Average$371 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$203 | Average$442 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$221 | Average$434 | FlexibilityNo cancel fee | On-time63% |