What airlines fly to Florida Keys?

American Airlines, JetBlue and Delta are the top three most popular airlines that fly to Florida Keys from Boston according to our data. American Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Florida Keys. Keep in mind that there are 5 different airlines that fly to Florida Keys on a routine basis, so you have a few additional options to choose from.

How many flights depart from Boston to Florida Keys on average per week?

As of July 2026, 135 flights take off from Boston and land in Florida Keys each week. The most common flight departure day for this route is Wed, with 19% of weekly flights taking off on this day.

What is the cheapest airline that flies from Boston Logan Intl to Florida Keys?

Southwest, United Airlines, and Delta are the most popular carriers operating from Boston Logan Intl to Florida Keys

When did momondo last update prices for flights from Boston Logan Intl Airport to Florida Keys?

Prices for flights from Boston Logan Intl Airport to Florida Keys were last updated today.

How many operators does momondo search for flights from Boston Logan Intl Airport to Florida Keys?

The number of operators available for flights from Boston Logan Intl Airport to Florida Keys is 6 as of July 2026.

How old do you have to be to fly from Boston Logan Intl Airport to Florida Keys?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Florida Keys.

What documentation or ID do you need to fly to Florida Keys?

The travel and health documents required for your trip to Florida Keys can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Florida Keys. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$113 Cheap Flights from Boston to Florida Keys in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Florida Keys

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:36 am - 4:21 pm

BOS

MIA

6h 45m

1 stop

5:28 pm - 11:50 am

MIA

BOS

18h 22m

2 stops

$237Frontier

Sun, Aug 23 - Wed, Aug 26

7:15 am - 10:52 am

BOS

MIA

3h 37mnonstop

7:59 pm - 11:33 pm

MIA

BOS

3h 34mnonstop

$238Delta

Wed, Oct 7 - Tue, Oct 13

3:21 pm - 7:00 pm

BOS

MIA

3h 39mnonstop

9:44 pm - 12:58 am

MIA

BOS

3h 14mnonstop

$238American Airlines

Tue, Aug 25 - Sat, Aug 29

5:00 am - 8:27 am

BOS

MIA

3h 27mnonstop

9:40 pm - 12:59 am

MIA

BOS

3h 19mnonstop

$238American Airlines

Wed, Oct 7 - Wed, Oct 14

7:10 pm - 12:55 am

BOS

MIA

5h 45m

1 stop

5:32 am - 12:09 pm

MIA

BOS

6h 37m

1 stop

$238Frontier

Wed, Sep 9 - Wed, Sep 16

7:05 am - 2:51 pm

BOS

MIA

7h 46m

1 stop

7:00 am - 12:47 pm

MIA

BOS

5h 47m

1 stop

$239United Airlines

Tue, Sep 8 - Sat, Sep 12

10:05 am - 8:15 pm

BOS

MIA

10h 10m

2 stops

12:50 pm - 10:20 pm

MIA

BOS

9h 30m

1 stop

$239Southwest

Wed, Sep 9 - Wed, Sep 16

7:00 am - 2:25 pm

BOS

MIA

7h 25m

1 stop

3:45 pm - 10:24 pm

MIA

BOS

6h 39m

1 stop

$239Delta

Sat, Oct 3 - Wed, Oct 7

5:35 am - 3:15 pm

BOS

MIA

9h 40m

1 stop

4:05 pm - 9:30 pm

MIA

BOS

5h 25m

1 stop

$240Southwest

Tue, Sep 8 - Tue, Sep 15

5:45 am - 2:59 pm

BOS

MIA

9h 14m

2 stops

1:26 pm - 7:06 pm

MIA

BOS

5h 40m

1 stop

$242United Airlines

Tue, Sep 29 - Wed, Sep 30

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Southwest flights from Boston to Florida Keys

Our best Southwest deals on Boston to Florida Keys flight tickets

Southwest

Sep 9

BOS10:05 amBoston Logan Intl

10h 10m

2 stops

MIA8:15 pmMiami

Sep 16

MIA12:50 pmMiami

9h 30m

1 stop

BOS10:20 pmBoston Logan Intl

$239

Southwest

Sep 8

BOS5:35 amBoston Logan Intl

9h 40m

1 stop

MIA3:15 pmMiami

Sep 15

MIA4:05 pmMiami

5h 25m

1 stop

BOS9:30 pmBoston Logan Intl

$240

Southwest

Aug 29

BOS8:10 amBoston Logan Intl

8h 05m

1 stop

MIA4:15 pmMiami

Sep 5

MIA7:45 amMiami

7h 30m

1 stop

BOS3:15 pmBoston Logan Intl

$258

Frontier flights from Boston to Florida Keys

Our best Frontier deals on Boston to Florida Keys flight tickets

Frontier

Aug 23

BOS9:36 amBoston Logan Intl

6h 45m

1 stop

MIA4:21 pmMiami

Aug 26

MIA5:28 pmMiami

18h 22m

2 stops

BOS11:50 amBoston Logan Intl

$237

Frontier

Sep 12

BOS12:54 pmBoston Logan Intl

7h 44m

1 stop

MIA8:38 pmMiami

Sep 15

MIA5:32 amMiami

6h 35m

1 stop

BOS12:07 pmBoston Logan Intl

$242

Frontier

Sep 24

BOS12:54 pmBoston Logan Intl

7h 39m

1 stop

MIA8:33 pmMiami

Oct 3

MIA5:22 amMiami

6h 37m

1 stop

BOS11:59 amBoston Logan Intl

$244

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Sun 8/23

9:36 am-4:21 pm

1 stop6h 45m

Miami

Wed 8/26

5:28 pm-11:50 am

2 stops18h 22m

$237

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Wed 10/7

7:15 am-10:52 am

Nonstop3h 37m

Miami

Tue 10/13

7:59 pm-11:33 pm

Nonstop3h 34m

$238

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Tue 8/25

3:21 pm-7:00 pm

Nonstop3h 39m

Miami

Sat 8/29

9:44 pm-12:58 am

Nonstop3h 14m

$238

Quickest round-trip

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Wed 10/7

5:00 am-8:27 am

Nonstop3h 27m

Miami

Wed 10/14

9:40 pm-12:59 am

Nonstop3h 19m

$238

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Wed 9/9

7:10 pm-12:55 am

1 stop5h 45m

Miami

Wed 9/16

5:32 am-12:09 pm

1 stop6h 37m

$238

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Tue 9/8

7:05 am-2:51 pm

1 stop7h 46m

Miami

Sat 9/12

7:00 am-12:47 pm

1 stop5h 47m

$239

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Wed 9/9

10:05 am-8:15 pm

2 stops10h 10m

Miami

Wed 9/16

12:50 pm-10:20 pm

1 stop9h 30m

$239

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Sat 10/3

7:00 am-2:25 pm

1 stop7h 25m

Miami

Wed 10/7

3:45 pm-10:24 pm

1 stop6h 39m

$239

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Tue 9/8

5:35 am-3:15 pm

1 stop9h 40m

Miami

Tue 9/15

4:05 pm-9:30 pm

1 stop5h 25m

$240

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Tue 9/29

5:45 am-2:59 pm

2 stops9h 14m

Miami

Wed 9/30

1:26 pm-7:06 pm

1 stop5h 40m

$242

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boston to Florida Keys

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

Prices

Airlines

Other information

What is the cheapest month to fly to Florida Keys?

The month of October is another great option to travel to Florida Keys, with average flight prices from Boston averaging around $270.

What is the cheapest day to depart on your flight to Florida Keys?

The cheapest day to depart from Boston to Florida Keys is on a Thursday when prices can be found for as low as $486. The most expensive day to fly to Florida Keys is Tuesday, with ticket prices averaging around $533.

What is the cheapest time of day to depart on your flight to Florida Keys?

According to our data, the cheapest time of day to fly to Florida Keys is in the evening. momondo users have found flights departing from Boston to Florida Keys in the evening for as low as $338. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $579.

What is the cheapest Boston Logan Intl to Florida Keys flight route?

Fly from Boston Logan Intl to Key West for the best Boston Logan Intl - Florida Keys flight prices

How far in advance should I book a flight from Boston to Florida Keys?

You are more likely to see cheaper flights to Florida Keys from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around $308 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Florida Keys from Boston for as low as $246 on momondo.

What cabin class options are available on Boston to Florida Keys flights?

There are 4 cabin classes available to choose from on Boston to Florida Keys flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to Florida Keys flights?

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

Cheap Boston to Florida Keys flight deals and tips

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

Fastest flight time	3h 30m
Direct flights	Every day
Airports in Florida Keys	3 airports

The fastest flight from Boston to Florida Keys takes 3h 30m

Direct flights go from Boston to Florida Keys every day.

There are 3 airports in Florida Keys. From Boston there are direct flights to Miami (MIA).

Search flight deals

Frequently asked questions about flying from Boston to Florida Keys

When did momondo last update prices for flights from Boston Logan Intl Airport to Florida Keys?
Prices for flights from Boston Logan Intl Airport to Florida Keys were last updated today.
How many operators does momondo search for flights from Boston Logan Intl Airport to Florida Keys?
The number of operators available for flights from Boston Logan Intl Airport to Florida Keys is 6 as of July 2026.
How old do you have to be to fly from Boston Logan Intl Airport to Florida Keys?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Florida Keys.
What documentation or ID do you need to fly to Florida Keys?
The travel and health documents required for your trip to Florida Keys can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Florida Keys. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Boston to Florida Keys?
Based on momondo bookings for flights between Boston and Florida Keys, the leading plane model is Airbus A321neo, making up 11.52% of the total bookings. Other popular models include Airbus A220-300 with 10.68%, Airbus A320-100/200 with 9.43%, and Airbus A321-100/200 with 8.23%.

Best airlines flying from Boston to Florida Keys

Compare and see reviews for airlines that fly from Boston to Florida Keys with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $148	Free Cancellation	Rating 7.8 8,486 reviews	Search Delta flights
United Airlines	PriceFrom $196	Free Cancellation	Rating 7.4 10,050 reviews	Search United Airlines flights
JetBlue	PriceFrom $208	Free Cancellation	Rating 7.1 3,024 reviews	Search JetBlue flights
American Airlines	PriceFrom $241	Free Cancellation	Rating 7.1 11,841 reviews	Search American Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Florida Keys from Boston.

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

Yes. momondo enables you to select and highlight flights to Florida Keys from Boston with this policy.

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

Once you have performed a search for Boston to Florida Keys flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Boston to Florida Keys now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Florida Keys and let you know when they change.