HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
New Hampshire

$73+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — MHT
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Florida Keys to New Hampshire 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.

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 November 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Thu 12/117:09 pmMIA - BOS
1 stop15h 13mMultiple Airlines
Sat 1/109:27 amBOS - MIA
Nonstop3h 36mMultiple Airlines
Deal found 11/2$123
This Delta deal was found by Cheapflights users on 11/3. 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 11/196:55 amMIA - BOS
Nonstop3h 23mDelta
Wed 11/193:59 pmBOS - MIA
Nonstop3h 38mDelta
Deal found 11/3$127
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Thu 11/2012:28 pmMIA - BOS
1 stop8h 21mMultiple Airlines
Mon 11/248:24 amBOS - MIA
1 stop12h 25mMultiple Airlines
Deal found 11/3$129
This eDestinos deal was found by Cheapflights users on 11/2. 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 11/1211:19 amMIA - BOS
1 stop6h 12mSpirit Airlines
Wed 11/195:53 pmBOS - MIA
Nonstop3h 37mSpirit Airlines
Deal found 11/2$130
This Delta deal was found by Cheapflights users on 11/2. 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 11/1911:42 amMIA - BOS
Nonstop3h 17mDelta
Tue 12/27:59 pmBOS - MIA
Nonstop3h 38mDelta
Deal found 11/2$132
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Thu 12/117:09 pmMIA - BOS
1 stop15h 13mFrontier
Thu 1/86:00 amBOS - MIA
1 stop18h 46mFrontier
Deal found 11/2$133
This CheapOair deal was found by Cheapflights users on 11/4. 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 11/209:59 pmMIA - BOS
1 stop9h 30mFrontier
Fri 11/288:24 amBOS - MIA
1 stop8h 03mFrontier
Deal found 11/4$134
This Trip.com deal was found by Cheapflights users on 11/4. 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.
Fri 11/2112:28 pmMIA - BOS
1 stop8h 21mMultiple Airlines
Tue 11/259:57 amBOS - MIA
1 stop14h 00mMultiple Airlines
Deal found 11/4$136
This Delta deal was found by Cheapflights users on 11/4. 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.
Sat 12/66:53 amMIA - BOS
Nonstop3h 22mDelta
Sun 12/77:59 pmBOS - MIA
Nonstop3h 38mDelta
Deal found 11/4$137
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Fri 11/2112:28 pmMIA - BOS
1 stop8h 21mMultiple Airlines
Mon 11/248:24 amBOS - MIA
1 stop12h 25mMultiple Airlines
Deal found 11/3$140
This American Airlines deal was found by Cheapflights users on 11/3. 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 12/253:25 pmEYW - BOS
Nonstop3h 34mAmerican Airlines
Wed 12/3110:44 amBOS - EYW
Nonstop4h 11mAmerican Airlines
Deal found 11/3$203
This American Airlines deal was found by Cheapflights users on 11/4. 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 11/193:27 pmMIA - MHT
1 stop8h 21mAmerican Airlines
Sun 11/234:42 pmMHT - MIA
1 stop8h 04mAmerican Airlines
Deal found 11/4$205

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 November 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$105
(Kiwi.com)

One-way from

$73
(CheapOair)

Popular in

September

Cheapest in

June

Average price

$320
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. 4% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 November 4, 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

Wed 11/19

6:55 am-10:18 am

Nonstop3h 23m

Boston Logan Intl

Wed 11/19

3:59 pm-7:37 pm

Nonstop3h 38m

$127

MiamiBoston

MIA - BOS

MIABOS

Miami

Fri 12/5

11:45 am-3:10 pm

Nonstop3h 25m

Boston Logan Intl

Mon 12/8

7:05 am-10:50 am

Nonstop3h 45m

$137

MiamiBoston

MIA - BOS

MIABOS

Miami

Thu 12/4

7:00 am-2:27 pm

1 stop7h 27m

Boston Logan Intl

Sun 12/7

7:59 pm-11:37 pm

Nonstop3h 38m

$147

MiamiBoston

MIA - BOS

MIABOS

Miami

Sat 12/13

6:53 am-10:15 am

Nonstop3h 22m

Boston Logan Intl

Tue 12/16

10:00 am-6:50 pm

1 stop8h 50m

$147

MiamiBoston

MIA - BOS

MIABOS

Miami

Sun 12/14

6:20 am-12:50 pm

1 stop6h 30m

Boston Logan Intl

Tue 12/16

5:45 am-11:05 am

1 stop5h 20m

$157

MiamiBoston

MIA - BOS

MIABOS

Miami

Fri 12/12

7:00 am-2:27 pm

1 stop7h 27m

Boston Logan Intl

Mon 12/15

6:00 am-2:25 pm

1 stop8h 25m

$157

MiamiBoston

MIA - BOS

MIABOS

Miami

Fri 12/5

1:31 pm-7:30 pm

1 stop5h 59m

Boston Logan Intl

Sun 12/7

7:59 pm-11:37 pm

Nonstop3h 38m

$158

MiamiBoston

MIA - BOS

MIABOS

Miami

Tue 11/25

6:55 am-10:18 am

Nonstop3h 23m

Boston Logan Intl

Tue 12/2

7:59 pm-11:37 pm

Nonstop3h 38m

$167

MiamiBoston

MIA - BOS

MIABOS

Miami

Thu 11/27

12:36 pm-6:16 pm

1 stop5h 40m

Boston Logan Intl

Tue 12/2

6:45 am-1:06 pm

1 stop6h 21m

$168

MiamiBoston

MIA - BOS

MIABOS

Miami

Fri 12/12

7:59 pm-11:25 pm

Nonstop3h 26m

Boston Logan Intl

Sat 1/10

3:30 pm-7:16 pm

Nonstop3h 46m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 60 results
1
2
3
...
6

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 November 4, 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
4,239 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
4,239 reviews
Southwest
8.0
Very good
4,239 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
American Airlines
7.2
Good
11,040 reviews
Southwest
8.0
Very good
4,239 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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 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 23m. Delta provides one of the quickest options available for as low as $127. 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 Delta ($79), Southwest ($79), and American Airlines ($86).

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Florida Keys to New Hampshire

See prices for flight routes from nearby airports that may be better suited for you.
Fort Lauderdale to Newark flights
Orlando to John F Kennedy Intl flights
Miami to John F Kennedy Intl flights
Miami to Newark flights
Fort Lauderdale to John F Kennedy Intl flights
Fort Lauderdale to LaGuardia flights
Tampa to Newark flights
Miami to LaGuardia flights
Tampa to John F Kennedy Intl flights
Tampa to LaGuardia flights
Orlando to Las Vegas flights
Miami to Denver flights
Orlando to LaGuardia flights
Orlando to Denver flights
Orlando to Newark flights
Orlando to Los Angeles flights
Tampa to Denver flights
West Palm Beach to John F Kennedy Intl flights
Orlando to Dallas/Fort Worth flights
Fort Lauderdale to Dallas/Fort Worth flights
West Palm Beach to LaGuardia flights
Fort Lauderdale to Las Vegas flights
West Palm Beach to Newark flights
Tampa to Las Vegas flights
Fort Lauderdale to Denver flights
Fort Lauderdale to Atlanta flights
Fort Lauderdale to Los Angeles flights
Miami to Los Angeles flights
Jacksonville to John F Kennedy Intl flights
Jacksonville to LaGuardia flights
Orlando to Seattle flights
Orlando to Reagan-National flights
Fort Lauderdale to Baltimore flights
Miami to Las Vegas flights
Jacksonville to Newark flights
Miami to Atlanta flights
Tampa to Dulles Intl flights
Tampa to O'Hare Intl flights
Tampa to Los Angeles flights
Fort Myers to John F Kennedy Intl flights
Miami to Dallas/Fort Worth flights
Orlando to Sky Harbor Intl flights
Fort Lauderdale to Boston flights
Fort Lauderdale to O'Hare Intl flights
Miami to O'Hare Intl flights
Orlando to O'Hare Intl flights
Tampa to Dallas/Fort Worth flights
Orlando to Hobby flights
Tampa to Boston flights
Miami to San Francisco flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.