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$94+ Cheap flights from New Hampshire to Caribbean

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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SJU
Nov 30 — Dec 71
Sun 11/30
Sun 12/7
1 adult, Economy
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Cheap flight deals from New Hampshire to Caribbean

Keep the following information in mind while searching for New Hampshire to Caribbean flight deals. Data was last updated October 31, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$212
(Frontier)

One-way from

$94
(Delta)

Popular in

December

Cheapest in

January

Average price

$265
Provider with most accurate pricing for Boston Logan Intl-San Juan flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-San Juan flights.
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From New Hampshire to Caribbean
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One-way flight from New Hampshire to Caribbean
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from New Hampshire to Caribbean

Cheapest flights from New Hampshire to Caribbean
Explore the most affordable flight options available from New Hampshire to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Sun 11/166:16 amBOS - SJU
1 stop10h 03mMultiple Airlines
Fri 11/212:25 amSJU - BOS
1 stop30h 04mMultiple Airlines
Deal found 10/29$214
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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 12/78:11 pmBOS - SJU
1 stop13h 22mSpirit Airlines
Fri 12/1211:38 amSJU - BOS
1 stop8h 28mSpirit Airlines
Deal found 10/29$216
This Frontier deal was found by Cheapflights users on 10/31. 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 11/168:40 amBOS - SJU
2 stops15h 52mFrontier
Thu 11/207:11 amSJU - BOS
2 stops18h 33mFrontier
Deal found 10/31$218
This Frontier deal was found by Cheapflights users on 10/29. 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 11/168:40 amBOS - SJU
2 stops15h 52mFrontier
Mon 11/243:59 amSJU - BOS
1 stop7h 05mFrontier
Deal found 10/29$220
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Wed 12/317:34 pmBOS - SJU
Nonstop4h 07mSpirit Airlines
Wed 1/145:27 pmSJU - BOS
Nonstop4h 07mSpirit Airlines
Deal found 10/30$221
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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 11/166:16 amBOS - SJU
1 stop10h 03mSpirit Airlines
Thu 11/207:20 amSJU - BOS
1 stop10h 30mSpirit Airlines
Deal found 10/30$222
This Trip.com deal was found by Cheapflights users on 10/29. 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 12/26:55 pmBOS - SJU
Nonstop3h 59mJetBlue
Fri 12/51:41 pmSJU - BOS
Nonstop4h 13mJetBlue
Deal found 10/29$223
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Sat 11/159:23 amBOS - SJU
2 stops30h 56mMultiple Airlines
Fri 11/212:25 amSJU - BOS
1 stop30h 04mMultiple Airlines
Deal found 10/29$224
This Booking.com deal was found by Cheapflights users on 10/29. 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.
Mon 11/2410:59 amBOS - SJU
1 stop14h 55mFrontier
Thu 12/44:31 pmSJU - BOS
1 stop18h 51mFrontier
Deal found 10/29$226
This Trip.com deal was found by Cheapflights users on 10/30. 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 11/117:40 amBOS - SJU
Nonstop4h 04mJetBlue
Fri 11/148:10 pmSJU - BOS
Nonstop4h 06mJetBlue
Deal found 10/30$227
This Kiwi.com deal was found by Cheapflights users on 10/31. 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.
Sat 12/68:11 pmBOS - SJU
1 stop13h 22mSpirit Airlines
Tue 12/95:00 pmSJU - BOS
1 stop18h 01mSpirit Airlines
Deal found 10/31$228
This American Airlines deal was found by Cheapflights users on 10/31. 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.
Wed 12/105:34 amBOS - STT
1 stop8h 52mAmerican Airlines
Sat 12/202:55 pmSTT - BOS
1 stop9h 00mAmerican Airlines
Deal found 10/31$303

Cheapflights Fare Finder

 
Customize your flight search to find flights from New Hampshire to Caribbean 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 31, 2025.
Use the filters below to find and compare flights from New Hampshire to Caribbean that are best for you.

Fly from

New Hampshire

Fly to

Caribbean

Route

Depart

Return

Price

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Tue 11/18

1:55 pm-6:57 pm

Nonstop4h 02m

San Juan Luis Munoz Marin Intl

Wed 11/26

6:07 am-9:16 am

Nonstop4h 09m

$262

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Tue 11/18

7:40 am-12:44 pm

Nonstop4h 04m

San Juan Luis Munoz Marin Intl

Thu 11/27

6:06 am-9:15 am

Nonstop4h 09m

$262

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Sun 11/16

1:55 pm-6:57 pm

Nonstop4h 02m

San Juan Luis Munoz Marin Intl

Fri 11/21

1:59 am-7:42 am

1 stop6h 43m

$270

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Tue 1/20

5:29 am-2:10 pm

1 stop7h 41m

San Juan Luis Munoz Marin Intl

Fri 1/23

6:15 am-2:20 pm

1 stop9h 05m

$271

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Tue 12/2

6:55 pm-11:54 pm

Nonstop3h 59m

San Juan Luis Munoz Marin Intl

Thu 12/11

11:34 am-5:39 pm

1 stop7h 05m

$288

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Wed 12/3

7:50 pm-3:48 am

1 stop6h 58m

San Juan Luis Munoz Marin Intl

Tue 12/9

6:10 am-9:19 am

Nonstop4h 09m

$299

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Wed 12/3

7:50 pm-3:48 am

1 stop6h 58m

San Juan Luis Munoz Marin Intl

Thu 12/11

6:10 am-9:19 am

Nonstop4h 09m

$299

BostonSaint Thomas Island

BOS - STT

BOSSTT

Boston Logan Intl

Sun 1/18

8:00 am-1:05 pm

Nonstop4h 05m

Saint Thomas Island Cyril E King

Fri 1/23

2:00 pm-6:59 pm

1 stop5h 59m

$302

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Sun 12/7

12:55 pm-5:57 pm

Nonstop4h 02m

San Juan Luis Munoz Marin Intl

Sat 12/13

10:00 am-4:47 pm

1 stop7h 47m

$304

BostonSaint Thomas Island

BOS - STT

BOSSTT

Boston Logan Intl

Sun 12/28

5:01 am-2:00 pm

1 stop7h 59m

Saint Thomas Island Cyril E King

Fri 1/2

1:07 pm-5:55 pm

1 stop5h 48m

$313

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 60 results
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Best time to book a flight from New Hampshire to Caribbean

Have a flexible travel schedule? Discover the best time to fly to Caribbean from New Hampshire 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 Hampshire to Caribbean

What is the cheapest month to book a flight from New Hampshire to Caribbean?

Currently, September is the cheapest month in which you can book a flight from New Hampshire to Caribbean (average of $151). Flying from New Hampshire to Caribbean in July is currently the most expensive (average of $438). 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 NH to CB?

Find hourly flight availability from New Hampshire to Caribbean. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 31, 2025.

When flying from New Hampshire to Caribbean, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 24% versus a flight in the morning.

Related info for your journey

Find useful and relevant information for your journey from New Hampshire to Caribbean. 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 Hampshire to Caribbean?

    Airlines like JetBlue, Delta, and United Airlines fly from New Hampshire to Caribbean in about 4h 02m. The time it takes to get you to your destination can typically vary by up to 6h 28m. There are 1678 mi between New Hampshire and Caribbean. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from New Hampshire to Caribbean one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $94. However, be on the lookout for offers from JetBlue and United Airlines, as they are both options that can get you from New Hampshire to Caribbean for a low price.

  • Can I find deals for flights from New Hampshire to Caribbean that include hotel bookings?

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

  • How can I find direct flights from New Hampshire to Caribbean?

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

  • Can I find deals for business class flights from New Hampshire to Caribbean?

    Yes. Cheapflights offers flight deals from New Hampshire to Caribbean 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 Hampshire to Caribbean?

    Currently, September is the cheapest month in which you can book a flight from New Hampshire to Caribbean (average of $151). Flying from New Hampshire to Caribbean in July is currently the most expensive (average of $438). 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 Hampshire to Caribbean

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from New Hampshire to Caribbean

Discover the top 4 airlines that operate flights from New Hampshire to Caribbean. 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 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$290Average$596FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$313Average$813FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$325Average$589FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$350Average$561FlexibilityNo cancel feeOn-time62%

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