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New Hampshire

$71+ Cheap flights from Florida Keys to New Hampshire

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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — MHT
Jan 21 — Jan 281
Wed 1/21
Wed 1/28
1 adult, Economy
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Cheap flight deals from Florida Keys to New Hampshire

Cheapest flights from Florida Keys to New Hampshire
Explore the most affordable flight options available from Florida Keys to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 22, 2025.

This CheapOair deal was found by Cheapflights users on 12/21. 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.
Wed 12/317:05 pmMIA - BOS
1 stop6h 09mFrontier
Sun 1/411:03 amBOS - MIA
1 stop8h 27mFrontier
Deal found 12/21$184
This Kiwi.com deal was found by Cheapflights users on 12/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:05 pmMIA - BOS
1 stop6h 09mFrontier
Sat 1/311:37 amBOS - MIA
1 stop9h 32mFrontier
Deal found 12/21$194
This Delta deal was found by Cheapflights users on 12/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amMIA - BOS
Nonstop3h 19mDelta
Mon 1/53:30 pmBOS - MIA
Nonstop3h 46mDelta
Deal found 12/20$208
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:30 amMIA - BOS
1 stop19h 54mFrontier
Sun 1/411:03 amBOS - MIA
1 stop23h 55mFrontier
Deal found 12/20$222
This Kiwi.com deal was found by Cheapflights users on 12/19. 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 12/309:05 pmMIA - BOS
1 stop28h 09mFrontier
Mon 1/510:43 amBOS - MIA
1 stop10h 26mFrontier
Deal found 12/19$223
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:00 amMIA - BOS
1 stop17h 14mMultiple Airlines
Fri 1/210:57 amBOS - MIA
1 stop10h 12mMultiple Airlines
Deal found 12/20$230
This eDestinos deal was found by Cheapflights users on 12/21. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:05 pmMIA - BOS
1 stop6h 09mFrontier
Mon 1/510:43 amBOS - MIA
1 stop10h 26mFrontier
Deal found 12/21$232
This Expedia deal was found by Cheapflights users on 12/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:05 pmMIA - BOS
1 stop6h 09mFrontier
Sat 1/311:37 amBOS - MIA
1 stop13h 10mFrontier
Deal found 12/20$234
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:05 pmMIA - BOS
2 stops16h 22mFrontier
Mon 1/510:43 amBOS - MIA
1 stop10h 26mFrontier
Deal found 12/20$241
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:19 pmMIA - BOS
1 stop11h 23mMultiple Airlines
Sat 1/311:37 amBOS - MIA
1 stop25h 29mMultiple Airlines
Deal found 12/20$244
This American Airlines deal was found by Cheapflights users on 12/19. 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.
Mon 12/223:25 pmEYW - BOS
Nonstop3h 34mAmerican Airlines
Mon 12/2910:44 amBOS - EYW
Nonstop4h 11mAmerican Airlines
Deal found 12/19$323
This American Airlines deal was found by Cheapflights users on 12/22. 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.
Mon 12/295:44 pmMIA - PWM
1 stop5h 11mAmerican Airlines
Fri 1/25:48 amPWM - MIA
1 stop6h 48mAmerican Airlines
Deal found 12/22$363

Find flight deals from Florida Keys to New Hampshire

Keep the following information in mind while searching for Florida Keys to New Hampshire flight deals. Data was last updated December 22, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$121
(Kiwi.com)

One-way from

$71
(CheapOair)

Popular in

September

Cheapest in

November

Average price

$410
Provider with most accurate pricing for Key West-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Key West-Boston Logan Intl flights.
Search Deals
From Florida Keys to New Hampshire
Search Deals
One-way flight from Florida Keys to New Hampshire
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Florida Keys to New Hampshire 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 December 22, 2025.
Use the filters below to find and compare flights from Florida Keys to New Hampshire that are best for you.

Fly from

Florida Keys

Fly to

New Hampshire

Route

Depart

Return

Price

MiamiBoston

MIA - BOS

MIABOS

Miami

Tue 2/3

6:59 pm-1:03 am

1 stop6h 04m

Boston Logan Intl

Tue 2/10

6:00 am-4:46 pm

1 stop10h 46m

$128

MiamiManchester

MIA - MHT

MIAMHT

Miami

Sat 1/17

5:36 pm-11:59 pm

1 stop6h 23m

Manchester

Sat 1/24

1:48 pm-9:10 pm

1 stop7h 22m

$159

MiamiBoston

MIA - BOS

MIABOS

Miami

Thu 2/5

11:31 am-2:56 pm

Nonstop3h 25m

Boston Logan Intl

Sun 2/8

7:59 pm-11:51 pm

Nonstop3h 52m

$179

MiamiBoston

MIA - BOS

MIABOS

Miami

Thu 1/22

6:55 am-10:14 am

Nonstop3h 19m

Boston Logan Intl

Mon 1/26

3:50 pm-7:33 pm

Nonstop3h 43m

$179

Key WestBoston

EYW - BOS

EYWBOS

Key West

Mon 1/19

1:00 pm-4:36 pm

Nonstop3h 36m

Boston Logan Intl

Mon 1/26

8:09 am-12:05 pm

Nonstop3h 56m

$182

MiamiBoston

MIA - BOS

MIABOS

Miami

Thu 1/15

7:00 am-12:23 pm

1 stop5h 23m

Boston Logan Intl

Mon 1/19

10:05 am-4:30 pm

1 stop6h 25m

$183

MiamiBoston

MIA - BOS

MIABOS

Miami

Tue 1/13

7:00 am-3:22 pm

1 stop8h 22m

Boston Logan Intl

Tue 1/20

1:00 pm-7:04 pm

1 stop6h 04m

$183

Key WestBoston

EYW - BOS

EYWBOS

Key West

Fri 1/30

1:06 pm-11:19 pm

1 stop10h 13m

Boston Logan Intl

Mon 2/2

5:34 am-1:30 pm

1 stop7h 56m

$189

MiamiBoston

MIA - BOS

MIABOS

Miami

Thu 2/5

6:55 am-10:14 am

Nonstop3h 19m

Boston Logan Intl

Mon 2/9

10:05 am-6:54 pm

1 stop8h 49m

$189

MiamiBoston

MIA - BOS

MIABOS

Miami

Fri 1/16

8:25 pm-11:58 pm

Nonstop3h 33m

Boston Logan Intl

Mon 1/19

7:05 am-10:53 am

Nonstop3h 48m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

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

Have a flexible travel schedule? Discover the best time to fly to New Hampshire from Florida Keys 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 Florida Keys to New Hampshire
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing New Hampshire

Get insights into the airlines that provide service to New Hampshire. 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 New Hampshire. Reviews last updated December 22, 2025.
Peruse reviews from past customers who have flown with Southwest and American Airlines from Florida Keys to New Hampshire to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,253 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,253 reviews
Southwest
8.0
Very good
4,253 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,052 reviews
Southwest
8.0
Very good
4,253 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

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

    A quick flight from Florida Keys to New Hampshire can take about 3h 25m. Frontier provides one of the quickest options available for as low as $179. Airlines will cover a distance of 1259 mi. This flight may include one or multiple stops.

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

    The cheapest airlines for a one-way flight from Florida Keys to New Hampshire are Southwest ($93), American Airlines ($93), and JetBlue ($108).

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

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

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

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

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

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

See more FAQs

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Alternative routes for Florida Keys to New Hampshire

See prices for flight routes from nearby airports that may be better suited for you.
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