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Port St. Lucie

$55+ Cheap flights from Boston (BOS) to Port St. Lucie, FL

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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — MCO
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Port St. Lucie are usually found in September or March, booked 19 days in advance, depart on a Wednesday or Thursday and return on a Friday

Cheap flight deals from Boston to Port St. Lucie

Cheapest flights from Boston to Port St. Lucie
Explore the most affordable flight options available from Boston to Port St. Lucie. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Mon 3/912:43 pm
BOS
-
FLL
1 stop7h 22m
Spirit Airlines
Thu 3/129:00 pm
FLL
-
BOS
Nonstop2h 59m
Spirit Airlines
Deal found 2/2$106
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Tue 3/35:27 am
BOS
-
FLL
Nonstop3h 33m
Spirit Airlines
Wed 3/46:35 am
FLL
-
BOS
1 stop5h 13m
Spirit Airlines
Deal found 2/1$107
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/55:27 am
BOS
-
FLL
Nonstop3h 33m
Spirit Airlines
Wed 3/112:02 pm
FLL
-
BOS
Nonstop3h 13m
Spirit Airlines
Deal found 2/2$108
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Mon 3/25:27 am
BOS
-
FLL
Nonstop3h 33m
Spirit Airlines
Wed 3/46:35 am
FLL
-
BOS
1 stop5h 13m
Spirit Airlines
Deal found 2/2$109
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Sun 3/16:10 pm
BOS
-
FLL
Nonstop3h 41m
Spirit Airlines
Wed 3/112:02 pm
FLL
-
BOS
Nonstop3h 13m
Spirit Airlines
Deal found 2/2$110
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Mon 2/236:10 pm
BOS
-
FLL
Nonstop3h 41m
Spirit Airlines
Tue 3/106:35 am
FLL
-
BOS
1 stop5h 13m
Spirit Airlines
Deal found 2/2$111
This Cheapflightsfares deal was found by Cheapflights users on 2/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:27 am
BOS
-
FLL
Nonstop3h 33m
Spirit Airlines
Tue 3/1012:40 pm
FLL
-
BOS
1 stop9h 21m
Spirit Airlines
Deal found 2/2$112
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:54 pm
BOS
-
FLL
2 stops17h 08m
Spirit Airlines
Tue 3/108:32 pm
FLL
-
BOS
Nonstop3h 12m
Spirit Airlines
Deal found 2/3$113
This Expedia deal was found by Cheapflights users on 2/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:10 pm
BOS
-
FLL
Nonstop3h 41m
Multiple Airlines
Tue 2/247:02 pm
FLL
-
BOS
1 stop6h 11m
Multiple Airlines
Deal found 2/3$114
This Spirit deal was found by Cheapflights users on 2/1. 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.
Fri 2/2011:31 am
BOS
-
FLL
Nonstop3h 36m
Spirit Airlines
Fri 2/278:32 pm
FLL
-
BOS
Nonstop3h 12m
Spirit Airlines
Deal found 2/1$115
This Kiwi.com deal was found by Cheapflights users on 2/3. 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.
Sat 2/218:32 pm
BOS
-
FLL
Nonstop3h 27m
Spirit Airlines
Tue 2/249:05 pm
FLL
-
BOS
2 stops19h 40m
Spirit Airlines
Deal found 2/3$116
This Expedia deal was found by Cheapflights users on 2/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1911:31 am
BOS
-
FLL
Nonstop3h 36m
Spirit Airlines
Sat 2/286:30 am
FLL
-
BOS
1 stop5h 22m
Spirit Airlines
Deal found 2/2$117

Find flight deals from Boston to Port St. Lucie

Keep the following information in mind while searching for Boston to Port St. Lucie flight deals. Data was last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$106
(Kiwi.com)

One-way from

$55
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$243
Provider with most accurate pricing for Boston Logan Intl-Fort Lauderdale flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Fort Lauderdale flights.
Search Deals
From Boston Logan Intl to Port St. Lucie
Search Deals
One-way flight from Boston Logan Intl to Port St. Lucie
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Port St. Lucie 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 February 3, 2026.
Use the filters below to find and compare flights from Boston to Port St. Lucie that are best for you.

Fly from

Boston

Fly to

Port St. Lucie

Route

Depart

Return

Price

BostonFort Lauderdale

BOS - FLL

BOSFLL

Boston Logan Intl

Tue 2/24

2:23 pm-8:05 pm

1 stop5h 42m

Fort Lauderdale

Wed 3/11

12:40 pm-10:01 pm

1 stop9h 21m

$126

BostonFort Lauderdale

BOS - FLL

BOSFLL

Boston Logan Intl

Thu 4/2

5:45 am-9:08 am

Nonstop3h 23m

Fort Lauderdale

Sat 4/4

12:20 pm-3:28 pm

Nonstop3h 08m

$135

BostonFort Lauderdale

BOS - FLL

BOSFLL

Boston Logan Intl

Wed 3/4

3:55 pm-7:30 pm

Nonstop3h 35m

Fort Lauderdale

Mon 3/9

8:35 pm-11:53 pm

Nonstop3h 18m

$167

BostonFort Lauderdale

BOS - FLL

BOSFLL

Boston Logan Intl

Wed 2/25

7:25 pm-10:57 pm

Nonstop3h 32m

Fort Lauderdale

Sat 3/7

5:00 pm-8:19 pm

Nonstop3h 19m

$167

BostonFort Lauderdale

BOS - FLL

BOSFLL

Boston Logan Intl

Thu 2/19

7:55 pm-11:31 pm

Nonstop3h 36m

Fort Lauderdale

Wed 2/25

7:00 am-10:10 am

Nonstop3h 10m

$167

BostonFort Lauderdale

BOS - FLL

BOSFLL

Boston Logan Intl

Sun 3/1

3:55 pm-7:30 pm

Nonstop3h 35m

Fort Lauderdale

Thu 3/5

8:40 pm-11:53 pm

Nonstop3h 13m

$167

BostonFort Lauderdale

BOS - FLL

BOSFLL

Boston Logan Intl

Sun 3/22

9:45 am-9:41 pm

1 stop11h 56m

Fort Lauderdale

Sat 3/28

6:50 am-6:09 pm

1 stop11h 19m

$176

BostonFort Lauderdale

BOS - FLL

BOSFLL

Boston Logan Intl

Wed 3/4

7:10 am-10:52 am

Nonstop3h 42m

Fort Lauderdale

Wed 3/11

9:05 am-3:09 pm

1 stop6h 04m

$177

BostonFort Lauderdale

BOS - FLL

BOSFLL

Boston Logan Intl

Wed 2/25

7:55 pm-11:31 pm

Nonstop3h 36m

Fort Lauderdale

Tue 3/10

7:00 am-12:15 pm

1 stop5h 15m

$177

BostonFort Lauderdale

BOS - FLL

BOSFLL

Boston Logan Intl

Sun 3/1

10:00 am-4:14 pm

1 stop6h 14m

Fort Lauderdale

Tue 3/3

8:40 pm-11:53 pm

Nonstop3h 13m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 23 results
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Best time to book a flight from Boston to Port St. Lucie

Have a flexible travel schedule? Discover the best time to fly to Port St. Lucie from Boston 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 Boston to Port St. Lucie

How far ahead should I book a flight from Boston to Port St. Lucie?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Port St. Lucie. Price data was last updated on January 30, 2026.

The price you pay for your flight from Boston to Port St. Lucie may vary depending on when you book. For the best chance of a lower fare, look to book 19 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boston to Port St. Lucie?

Currently, March is the cheapest month in which you can book a flight from Boston to Port St. Lucie (average of $56). Flying from Boston to Port St. Lucie in June is currently the most expensive (average of $87). 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.

What is the cheapest time of day to fly from BOS to LU5?

Find hourly flight availability from Boston to Port St. Lucie. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 3, 2026.

It’s optimal to fly from Boston to Port St. Lucie in the afternoon. By choosing this option you can save up to 11% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Boston to Port St. Lucie?

Use this chart to determine the cheapest time to fly round-trip from Boston to Port St. Lucie. Price data was last updated on January 31, 2026.

Travelers seeking maximum savings on their Boston to Port St. Lucie flight should consider departing on Sunday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Boston to Port St. Lucie

Explore weekly flight availability from Boston to Port St. Lucie. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 3, 2026.

The most flights from BOS to LU5 are scheduled on a Tuesday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (26 on average).

Reviews of airlines servicing Port St. Lucie

Get insights into the airlines that provide service to Port St. Lucie. 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 Port St. Lucie. Reviews last updated February 3, 2026.
Read reviews from past customers who have flown Delta, American Airlines, and JetBlue from Boston to Port St. Lucie. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,138 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Delta
7.9
Good
8,138 reviews
Delta
7.9
Good
8,138 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
American Airlines
7.2
Good
11,218 reviews
Delta
7.9
Good
8,138 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
JetBlue
7.2
Good
2,893 reviews
Delta
7.9
Good
8,138 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Spirit Airlines
6.3
Okay
8,407 reviews
Delta
7.9
Good
8,138 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Frontier
5.7
Fair
3,051 reviews
Delta
7.9
Good
8,138 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

Related info for your journey

Find useful and relevant information for your journey from Boston to Port St. Lucie. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to Port St. Lucie?

    Located just 2.6 mi from the city center, Boston Logan Intl is the airport most travelers will use when flying to Port St. Lucie from Boston. Booking flights from Logan Intl (BOS) to Port St. Lucie should be relatively easy as there are 27 daily outbound flights to Port St. Lucie from 9 different airlines.

  • How long is the flight from Boston to Port St. Lucie?

    A quick flight from Boston to Port St. Lucie can take about 3h 32m. Spirit Airlines provides one of the quickest options available for as low as $167. The distance from Boston to Port St. Lucie is about 1238 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Boston to Port St. Lucie one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $38. Users have also found prices from $64 and $69 on Frontier and Delta, respectively.

  • What are the most reliable airlines from Boston to Port St. Lucie?

    The top 3 most reliable airlines when flying from Boston to Port St. Lucie are Aeromexico (75%), American Airlines (68%) and Virgin Atlantic (67%).

  • What are the cheapest flights from Boston to Port St. Lucie?

    Looking for the cheapest flight from Boston to Port St. Lucie? While on average our users pay $408, our data indicates the cheapest price to be $51. The most popular route (Boston Logan Intl - Fort Lauderdale), is priced around $64.

  • Can I find deals for flights from Boston to Port St. Lucie that include hotel bookings?

    Yes. In addition to deals on Boston to Port St. Lucie flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Port St. Lucie?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Port St. Lucie.

  • Can I find deals for business class flights from Boston to Port St. Lucie?

    Yes. Cheapflights offers flight deals from Boston to Port St. Lucie 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 Boston to Port St. Lucie?

    Currently, March is the cheapest month in which you can book a flight from Boston to Port St. Lucie (average of $56). Flying from Boston to Port St. Lucie in June is currently the most expensive (average of $87). 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.

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Alternative routes for Boston to Port St. Lucie

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Top 9 airlines flying from Boston to Port St. Lucie

Discover the top 9 airlines that operate flights from Boston to Port St. Lucie. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$37Average$203FlexibilityNo cancel feeOn-time88%
FrontierCheapest$46Average$164FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$51Average$141FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$60Average$169FlexibilityNo cancel feeOn-time65%
DeltaCheapest$102Average$296FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$103Average$360FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$108Average$291FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$153Average$277FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$173Average$346FlexibilityNo cancel feeOn-time71%

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