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Cheap flights from Florida Keys to New Hampshire from $71

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Florida Keys to New Hampshire departing on 2/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Florida Keys to New Hampshire

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:49 pm - 1:19 am
MIA
-
BOS
12h 30m1 stop
Multiple Airlines Logo
5:23 pm - 9:05 pm
BOS
-
MIA
3h 42mnonstop
$121Multiple Airlines
Tue, Jan 6 - Sat, Jan 10
Multiple Airlines Logo
7:09 pm - 1:13 am
MIA
-
BOS
6h 04m1 stop
Multiple Airlines Logo
5:23 pm - 9:05 pm
BOS
-
MIA
3h 42mnonstop
$122Multiple Airlines
Thu, Feb 5 - Sat, Feb 7
Spirit Airlines Logo
7:00 am - 11:57 pm
MIA
-
BOS
16h 57m2 stops
Spirit Airlines Logo
5:23 pm - 9:05 pm
BOS
-
MIA
3h 42mnonstop
$127Spirit Airlines
Thu, Jan 15 - Mon, Jan 19
Frontier Logo
6:59 pm - 1:03 am
MIA
-
BOS
6h 04m1 stop
Frontier Logo
6:00 am - 4:46 pm
BOS
-
MIA
10h 46m1 stop
$128Frontier
Tue, Feb 3 - Tue, Feb 10
Frontier Logo
2:57 pm - 1:03 am
MIA
-
BOS
10h 06m1 stop
Frontier Logo
6:00 am - 12:47 pm
BOS
-
MIA
6h 47m1 stop
$129Frontier
Wed, Jan 21 - Wed, Jan 28
Southwest Logo
7:00 am - 2:30 pm
MIA
-
MHT
7h 30m1 stop
Southwest Logo
3:25 pm - 9:00 pm
MHT
-
MIA
5h 35m1 stop
$159Southwest
Sat, Jan 10 - Mon, Jan 12
Spirit Airlines Logo
2:25 pm - 11:57 pm
EYW
-
BOS
9h 32m1 stop
Spirit Airlines Logo
5:34 am - 1:30 pm
BOS
-
EYW
7h 56m1 stop
$187Spirit Airlines
Mon, Jan 26 - Fri, Jan 30
American Airlines Logo
9:30 am - 3:46 pm
MIA
-
MHT
6h 16m1 stop
American Airlines Logo
11:41 am - 7:20 pm
MHT
-
MIA
7h 39m1 stop
$218American Airlines
Thu, Feb 19 - Mon, Feb 23
American Airlines Logo
5:36 pm - 11:46 pm
MIA
-
MHT
6h 10m1 stop
American Airlines Logo
1:48 pm - 9:10 pm
MHT
-
MIA
7h 22m1 stop
$228American Airlines
Fri, Jan 16 - Fri, Jan 23
Southwest Logo
7:55 am - 8:35 pm
MIA
-
MHT
12h 40m2 stops
Southwest Logo
8:45 am - 2:50 pm
MHT
-
MIA
6h 05m1 stop
$239Southwest
Mon, Feb 2 - Sat, Feb 7

Spirit Airlines flights from Florida Keys to New Hampshire

Our best Spirit Airlines deals on Florida Keys to New Hampshire flight tickets
Spirit Airlines
Jan 15
MIA7:00 amMiami
16h 57m
2 stops
BOS11:57 pmBoston Logan Intl
Jan 19
BOS5:23 pmBoston Logan Intl
3h 42m
MIA9:05 pmMiami
$127
Find similar
Spirit Airlines
Jan 14
MIA12:56 pmMiami
3h 23m
BOS4:19 pmBoston Logan Intl
Jan 20
BOS5:34 amBoston Logan Intl
18h 25m
3 stops
MIA11:59 pmMiami
$133
Find similar
Spirit Airlines
Jan 13
MIA12:56 pmMiami
3h 23m
BOS4:19 pmBoston Logan Intl
Jan 20
BOS5:34 amBoston Logan Intl
18h 25m
3 stops
MIA11:59 pmMiami
$134
Find similar

Frontier flights from Florida Keys to New Hampshire

Our best Frontier deals on Florida Keys to New Hampshire flight tickets
Frontier
Feb 3
MIA6:59 pmMiami
6h 04m
1 stop
BOS1:03 amBoston Logan Intl
Feb 10
BOS6:00 amBoston Logan Intl
10h 46m
1 stop
MIA4:46 pmMiami
$128
Find similar
Frontier
Jan 21
MIA2:57 pmMiami
10h 06m
1 stop
BOS1:03 amBoston Logan Intl
Jan 28
BOS6:00 amBoston Logan Intl
6h 47m
1 stop
MIA12:47 pmMiami
$129
Find similar
Frontier
Feb 3
MIA6:59 pmMiami
6h 04m
1 stop
BOS1:03 amBoston Logan Intl
Feb 8
BOS6:00 amBoston Logan Intl
11h 48m
1 stop
MIA5:48 pmMiami
$141
Find similar

momondo 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, momondo users made 832,500 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

Fly to

Route

Depart

Return

Price

MiamiBoston

MIA - BOS

MIABOS

Miami

Tue 1/6

12:49 pm-1:19 am

1 stop12h 30m

Boston Logan Intl

Sat 1/10

5:23 pm-9:05 pm

Nonstop3h 42m

$121

MiamiBoston

MIA - BOS

MIABOS

Miami

Thu 2/5

7:09 pm-1:13 am

1 stop6h 04m

Boston Logan Intl

Sat 2/7

5:23 pm-9:05 pm

Nonstop3h 42m

$122

MiamiBoston

MIA - BOS

MIABOS

Miami

Thu 1/15

7:00 am-11:57 pm

2 stops16h 57m

Boston Logan Intl

Mon 1/19

5:23 pm-9:05 pm

Nonstop3h 42m

$127

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

MiamiBoston

MIA - BOS

MIABOS

Miami

Wed 1/21

2:57 pm-1:03 am

1 stop10h 06m

Boston Logan Intl

Wed 1/28

6:00 am-12:47 pm

1 stop6h 47m

$129

MiamiManchester

MIA - MHT

MIAMHT

Miami

Sat 1/10

7:00 am-2:30 pm

1 stop7h 30m

Manchester

Mon 1/12

3:25 pm-9:00 pm

1 stop5h 35m

$159

Key WestBoston

EYW - BOS

EYWBOS

Key West

Mon 1/26

2:25 pm-11:57 pm

1 stop9h 32m

Boston Logan Intl

Fri 1/30

5:34 am-1:30 pm

1 stop7h 56m

$187

MiamiManchester

MIA - MHT

MIAMHT

Miami

Thu 2/19

9:30 am-3:46 pm

1 stop6h 16m

Manchester

Mon 2/23

11:41 am-7:20 pm

1 stop7h 39m

$218

MiamiManchester

MIA - MHT

MIAMHT

Miami

Fri 1/16

5:36 pm-11:46 pm

1 stop6h 10m

Manchester

Fri 1/23

1:48 pm-9:10 pm

1 stop7h 22m

$228

MiamiManchester

MIA - MHT

MIAMHT

Miami

Mon 2/2

7:55 am-8:35 pm

2 stops12h 40m

Manchester

Sat 2/7

8:45 am-2:50 pm

1 stop6h 05m

$239

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to New Hampshire from

How to get the cheapest flight ticket from Florida Keys to New Hampshire

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to New Hampshire?

The month of March is another great option to travel to New Hampshire, with average flight prices from Florida Keys averaging around $167.

What is the cheapest day to depart on your flight to New Hampshire?

The cheapest day to depart on your flight to New Hampshire is on a Sunday when prices can be found for as low as $332. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to New Hampshire is Monday, with ticket prices averaging around $583.

What is the cheapest time of day to depart on your flight to New Hampshire?

According to our data, the cheapest time of day to fly to New Hampshire is in the afternoon. momondo users have found flights departing from Florida Keys to New Hampshire in the afternoon for as low as $332. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $475. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to New Hampshire?

You are more likely to see cheaper flights to New Hampshire from Florida Keys when booking weeks ahead of your departure date. In general, you can expect to find flights to New Hampshire for around $202 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to New Hampshire from Florida Keys for as low as $162 on momondo.

Can stopping save me money on Florida Keys to New Hampshire flights?

No. A direct flight is the cheapest option for a flight between Florida Keys to New Hampshire.

Cheap Florida Keys to New Hampshire flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Florida Keys to New Hampshire

Fastest flight time

3h 15m

Direct flights

Every day

Airports in New Hampshire

52 airports
The fastest flight from Florida Keys to New Hampshire takes 3h 15m
Direct flights go from Florida Keys to New Hampshire every day.
There are 52 airports in New Hampshire. From Florida Keys there are direct flights to Boston Logan Intl (BOS).
Search flight deals

  • When did momondo last update prices for flights from Florida Keys to New Hampshire?

    Prices for flights from Florida Keys to New Hampshire are refreshed on a daily basis.

  • How many operators does momondo search for flights from Florida Keys to New Hampshire?

  • How old do you have to be to fly from Florida Keys to New Hampshire?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Florida Keys to New Hampshire.

  • What documentation or ID do you need to fly to New Hampshire?

    The required travel and health documents for your New Hampshire trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at New Hampshire. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Florida Keys to New Hampshire?

Why use momondo?

Why should I use momondo to find a flight deal from Florida Keys to New Hampshire?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Florida Keys to New Hampshire for you.

Can I find flights from Florida Keys to New Hampshire with flexible booking policies on momondo?

Flights from Florida Keys to New Hampshire with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Florida Keys to New Hampshire?

momondo provides multiple filters to help you find the best flight to New Hampshire from Florida Keys. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Florida Keys to New Hampshire right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Florida Keys to New Hampshire flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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