How far in advance should I book tickets for a flight with Frontier from Boston to Miami?

Generally, when trying to get a below average price for your ticket, try to book around 3 days before departure. For the cheapest possible price, our data suggests booking 36 days before departure.

Is Frontier the cheapest airline to fly with from Boston to Miami?

Yes, based on our data, Frontier is the cheapest airline to fly the route with an average price of $97 return. The next cheapest options are Spirit Airlines and Delta, with return flights costing on average $186 and $244 respectively.

What is the cheapest Frontier flight from Boston to Miami?

In the last 3 days, the lowest price for a flight with Frontier from Boston to Miami was $140 for a return flight and $83 for a one-way flight.

Does Frontier fly direct to Miami from Boston?

No, Frontier does not fly the route directly.

What’s the cheapest day of the week to fly from Boston to Miami with Frontier?

On average, the cheapest day of the week to fly from Boston to Miami with Frontier is Sunday, when prices are around $17. The most expensive day is generally Tuesday, where the average price is around $77.

What’s the cheapest month to fly from Boston to Miami with Frontier?

The cheapest month for Frontier flights to Miami from Boston is generally January, where plane tickets cost $54 on average. If possible, try to avoid the most expensive months of September and July, where tickets cost $184 and $241 respectively.

$71 Cheap Frontier Flights from Boston to Miami

Flight Deals

Cheap Frontier Flight Deals from Boston to Miami

Here are some of the best deals found on KAYAK recently from Frontier for round-trip flights from Boston to Miami that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip Frontier flight deals from Boston to Miami

Thu, Jan 8 - Fri, Jan 16

6:00 am - 12:46 am

BOS

MIA

18h 46m1 stop

7:09 pm - 1:13 am

MIA

BOS

30h 04m1 stop

$142Frontier

Sat, Feb 21 - Sun, Mar 1

12:25 pm - 10:32 am

BOS

MIA

22h 07m1 stop

5:15 am - 11:35 am

MIA

BOS

6h 20m1 stop

$151Frontier

Tue, Feb 3 - Thu, Feb 12

6:00 am - 12:47 pm

BOS

MIA

6h 47m1 stop

7:09 pm - 1:13 am

MIA

BOS

6h 04m1 stop

$155Frontier

Thu, Feb 19 - Sat, Feb 28

10:01 am - 4:56 pm

BOS

MIA

6h 55m1 stop

11:35 am - 11:35 am

MIA

BOS

24h 00m1 stop

$156Frontier

Sat, Feb 21 - Sat, Feb 28

12:25 pm - 10:32 am

BOS

MIA

22h 07m1 stop

11:35 am - 11:35 am

MIA

BOS

24h 00m1 stop

$160Frontier

Wed, Jan 7 - Sat, Jan 10

6:00 am - 2:34 pm

BOS

MIA

8h 34m1 stop

7:09 pm - 1:19 am

MIA

BOS

6h 10m1 stop

$161Frontier

Mon, Jan 5 - Wed, Jan 7

10:43 am - 9:09 pm

BOS

MIA

10h 26m1 stop

7:09 pm - 1:19 am

MIA

BOS

6h 10m1 stop

$162Frontier

Thu, Jan 15 - Sat, Jan 17

6:00 am - 12:42 am

BOS

MIA

18h 42m1 stop

7:09 pm - 1:13 am

MIA

BOS

6h 04m1 stop

$165Frontier

Sat, Feb 21 - Sun, Mar 1

12:25 pm - 10:32 am

BOS

MIA

22h 07m1 stop

5:15 am - 11:35 am

MIA

BOS

6h 20m1 stop

$167Frontier

Thu, Jan 8 - Mon, Jan 12

6:00 am - 12:46 am

BOS

MIA

18h 46m1 stop

10:24 pm - 1:13 am

MIA

BOS

26h 49m2 stops

$174Frontier

Useful Info

High season	February
Cheapest flight	$71
Average price round-trip	$269

Most popular time to fly and prices are also 43% lower on average.

Flight from Boston to Miami

(price for this month)

When to Book Flights with Frontier from Boston to Miami

Average price per month

Flight prices as travel date approaches

How far in advance should I book tickets for a flight with Frontier from Boston to Miami?
Generally, when trying to get a below average price for your ticket, try to book around 3 days before departure. For the cheapest possible price, our data suggests booking 36 days before departure.
Is Frontier the cheapest airline to fly with from Boston to Miami?
Yes, based on our data, Frontier is the cheapest airline to fly the route with an average price of $97 return. The next cheapest options are Spirit Airlines and Delta, with return flights costing on average $186 and $244 respectively.
What is the cheapest Frontier flight from Boston to Miami?
In the last 3 days, the lowest price for a flight with Frontier from Boston to Miami was $140 for a return flight and $83 for a one-way flight.
Does Frontier fly direct to Miami from Boston?
No, Frontier does not fly the route directly.
What’s the cheapest day of the week to fly from Boston to Miami with Frontier?
On average, the cheapest day of the week to fly from Boston to Miami with Frontier is Sunday, when prices are around $17. The most expensive day is generally Tuesday, where the average price is around $77.
What’s the cheapest month to fly from Boston to Miami with Frontier?
The cheapest month for Frontier flights to Miami from Boston is generally January, where plane tickets cost $54 on average. If possible, try to avoid the most expensive months of September and July, where tickets cost $184 and $241 respectively.

5.8

Fair3,081 verified ratings

6.7Crew

4.6Food

4.4Entertainment

6.0Boarding

5.5Comfort

Pros +

Crew was extremely pleasant. (in 1649 reviews)

Cons -

Several individuals used foul language 50% of of the 4hr flight. (in 4167 reviews)
The seats could be a bit bigger (in 2932 reviews)

Show reviews that mention

2.0 Poor

Verified traveler, Dec 2025

DEN

PHL

Not clean and was told I would get a great seat and it was not great at all

8.0 Very good

Yordanos, Dec 2025

SJU

PHL

Good- no snacks on a 4+ hour flight is painful but more painful was the lack of WiFi.

2.0 Poor

omnia, Dec 2025

MCO

CLE

Flight got delayed for 5 hours no good explanation was offered ;(

6.0 Okay

Verified traveler, Dec 2025

PHX

SEA

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

2.0 Poor

Daniel, Nov 2025

DEN

ATL

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

8.0 Very good

Jaime, Nov 2025

LAS

SLC

It was excellent everything

4.0 Mediocre

Verified traveler, Nov 2025

LAX

IAH

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

8.0 Very good

Lisa, Nov 2025

PHL

SRQ

Delayed on tarmac and boarding

8.0 Very good

Martha, Nov 2025

MDW

MCO

Better than expected. Staff were friendly and nice on both flights.

2.0 Poor

Justin, Nov 2025

DEN

AUS

Worst experience ever...never fly Frontier again.

Everything you need to know for your flight from Boston to Miami

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Delta flights from Boston to Miami

BOS - MIA

$71 Find Cheap Frontier Flights from Boston to Miami

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Cheap Frontier Flight Deals from Boston to Miami

Recent round-trip Frontier flight deals from Boston to Miami

Recent one-way Frontier flight deals from Boston to Miami

Recent last minute Frontier flight deals from Boston to Miami

Good to know

When to Book Flights with Frontier from Boston to Miami

FAQs for flying to Miami with Frontier

How far in advance should I book tickets for a flight with Frontier from Boston to Miami?

Generally, when trying to get a below average price for your ticket, try to book around 3 days before departure. For the cheapest possible price, our data suggests booking 36 days before departure.

Is Frontier the cheapest airline to fly with from Boston to Miami?

Yes, based on our data, Frontier is the cheapest airline to fly the route with an average price of $97 return. The next cheapest options are Spirit Airlines and Delta, with return flights costing on average $186 and $244 respectively.

What is the cheapest Frontier flight from Boston to Miami?

In the last 3 days, the lowest price for a flight with Frontier from Boston to Miami was $140 for a return flight and $83 for a one-way flight.

Does Frontier fly direct to Miami from Boston?

No, Frontier does not fly the route directly.

What’s the cheapest day of the week to fly from Boston to Miami with Frontier?

On average, the cheapest day of the week to fly from Boston to Miami with Frontier is Sunday, when prices are around $17. The most expensive day is generally Tuesday, where the average price is around $77.

What’s the cheapest month to fly from Boston to Miami with Frontier?

The cheapest month for Frontier flights to Miami from Boston is generally January, where plane tickets cost $54 on average. If possible, try to avoid the most expensive months of September and July, where tickets cost $184 and $241 respectively.

Frontier Customer Reviews

Pros +

Cons -

Traveler rating:

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Everything you need to know for your flight from Boston to Miami

Other airlines flying from Boston to Miami

Flight deals from the most popular airlines with KAYAK users flying the route

Cabin class types available on flights to Miami

Cabin classes available on flights to Boston. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Complete your trip to Miami with a hotel stay or car rental

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Top Frontier flights

The most popular destinations for flights with Frontier according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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