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New Hampshire

$69+ 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — MHT
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap 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 July 31, 2025.

Round-trip from

$129
(Spirit)

One-way from

$68
(Frontier)

Popular in

December

Cheapest in

September

Average price

$431
From Florida Keys to New Hampshire
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One-way flight from Florida Keys to New Hampshire
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Highest demand for flights based on searches. 16% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 31, 2025.

This Spirit deal was found by Cheapflights users on 7/31. 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 Spirit is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3011:09 amMIA - BOS
Nonstop3h 21mSpirit Airlines
Sat 9/62:18 pmBOS - MIA
Nonstop3h 32mSpirit Airlines
Deal found 7/31$129
This American Airlines deal was found by Cheapflights users on 7/31. 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 10/812:58 pmMIA - BOS
Nonstop3h 14mAmerican Airlines
Sun 10/125:30 amBOS - MIA
Nonstop3h 35mAmerican Airlines
Deal found 7/31$131
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:59 pmMIA - BOS
Nonstop3h 27mDelta
Tue 9/233:24 pmBOS - MIA
Nonstop3h 35mDelta
Deal found 7/30$132
This Southwest deal was found by Cheapflights users on 7/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/45:00 pmMIA - BOS
1 stop5h 15mSouthwest
Wed 10/85:30 amBOS - MIA
1 stop5h 25mSouthwest
Deal found 7/30$154
This JetBlue deal was found by Cheapflights users on 7/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1311:42 amMIA - BOS
Nonstop3h 29mJetBlue
Tue 8/197:25 amBOS - MIA
Nonstop3h 29mJetBlue
Deal found 7/28$167
This CheapOair deal was found by Cheapflights users on 7/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/304:53 pmMIA - BOS
1 stop5h 50mMultiple Airlines
Sun 11/211:25 amBOS - MIA
Nonstop3h 36mMultiple Airlines
Deal found 7/29$170
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/236:17 pmEYW - BOS
1 stop5h 27mAmerican Airlines
Tue 10/76:00 amBOS - EYW
1 stop6h 58mAmerican Airlines
Deal found 7/30$171
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/233:29 pmMIA - PWM
1 stop7h 34mDelta
Sat 10/411:34 amPWM - MIA
1 stop7h 17mDelta
Deal found 7/31$217
This United Airlines deal was found by Cheapflights users on 7/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:50 pmMIA - PWM
2 stops10h 13mUnited Airlines
Tue 9/97:30 amPWM - MIA
1 stop6h 41mUnited Airlines
Deal found 7/30$222
This American Airlines deal was found by Cheapflights users on 7/31. 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 10/152:20 pmMIA - PWM
1 stop5h 54mAmerican Airlines
Sat 10/185:59 pmPWM - MIA
1 stop5h 33mAmerican Airlines
Deal found 7/31$257
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/176:10 pmEYW - PWM
1 stop6h 01mDelta
Wed 9/241:35 pmPWM - EYW
1 stop6h 32mDelta
Deal found 7/30$269
This Southwest deal was found by Cheapflights users on 7/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:00 pmMIA - PWM
1 stop5h 05mSouthwest
Sun 10/55:30 amPWM - MIA
1 stop5h 10mSouthwest
Deal found 7/30$279

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 July 31, 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

Sat 8/30

11:09 am-2:30 pm

Nonstop3h 21m

Boston Logan Intl

Sat 9/6

2:18 pm-5:50 pm

Nonstop3h 32m

$129

MiamiBoston

MIA - BOS

MIABOS

Miami

Wed 10/8

8:38 am-11:54 am

Nonstop3h 16m

Boston Logan Intl

Sun 10/12

5:30 am-9:05 am

Nonstop3h 35m

$131

MiamiBoston

MIA - BOS

MIABOS

Miami

Mon 9/15

7:59 pm-11:26 pm

Nonstop3h 27m

Boston Logan Intl

Wed 9/24

7:10 am-10:43 am

Nonstop3h 33m

$132

MiamiBoston

MIA - BOS

MIABOS

Miami

Sat 10/4

5:00 pm-10:15 pm

1 stop5h 15m

Boston Logan Intl

Wed 10/8

5:30 am-10:55 am

1 stop5h 25m

$154

MiamiBoston

MIA - BOS

MIABOS

Miami

Wed 8/13

11:42 am-3:11 pm

Nonstop3h 29m

Boston Logan Intl

Tue 8/19

7:25 am-10:54 am

Nonstop3h 29m

$167

Key WestBoston

EYW - BOS

EYWBOS

Key West

Tue 9/23

6:17 pm-11:44 pm

1 stop5h 27m

Boston Logan Intl

Tue 10/7

6:00 am-12:58 pm

1 stop6h 58m

$171

MiamiPortland

MIA - PWM

MIAPWM

Miami

Tue 9/23

3:29 pm-11:03 pm

1 stop7h 34m

Portland

Sat 10/4

11:34 am-6:51 pm

1 stop7h 17m

$217

MiamiPortland

MIA - PWM

MIAPWM

Miami

Fri 9/5

12:50 pm-11:03 pm

2 stops10h 13m

Portland

Tue 9/9

7:30 am-2:11 pm

1 stop6h 41m

$222

MiamiPortland

MIA - PWM

MIAPWM

Miami

Wed 10/15

2:20 pm-8:14 pm

1 stop5h 54m

Portland

Sat 10/18

5:59 pm-11:32 pm

1 stop5h 33m

$257

Key WestPortland

EYW - PWM

EYWPWM

Key West

Wed 9/17

6:10 pm-12:11 am

1 stop6h 01m

Portland

Wed 9/24

1:35 pm-8:07 pm

1 stop6h 32m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 53 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 July 31, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Breeze Airways
8.0
Very good
191 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

  • 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 Frontier ($68), Delta ($69), and Southwest ($71).

  • 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.

  • What is the cheapest month to book a flight from Florida Keys to New Hampshire?

    Currently, January is the cheapest month in which you can book a flight from Florida Keys to New Hampshire (average of $334). Flying from Florida Keys to New Hampshire in April is currently the most expensive (average of $396). 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 Florida Keys to New Hampshire

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