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Key Largo

$18+ Cheap flights from Boston (BOS) to Key Largo, 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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — MIA
Nov 10 — Nov 171
1 adult
Sun 11/10
Sun 11/17
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The best prices from Boston Logan Intl to Key Largo are usually found in September or January, booked 30 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Boston to Key Largo

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Key Largo (KE9). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 5, 2024.

Popular in

April

Cheapest in

September

Round-trip from

$31
(eDestinos)

One-way from

$18
(Cheapflightsfares)
High demand for flights, 18% potential price rise
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Best time to find cheap flights, 29% potential price drop
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From Boston Logan Intl to Key Largo
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One-way flight from Boston Logan Intl to Key Largo
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Find flight deals from Boston to Key Largo

Cheapest flights from Boston to Key Largo
Explore the most affordable flight options available from Boston to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2024.

This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/75:45 pmBOS - MIA
Nonstop3h 45mSpirit Airlines
Sat 12/215:45 amMIA - BOS
Nonstop3h 14mSpirit Airlines
Deal found 11/4$77
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3111:42 amBOS - MIA
Nonstop3h 45mFrontier
Thu 1/95:30 amMIA - BOS
Nonstop3h 33mFrontier
Deal found 11/4$79
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/105:45 pmBOS - MIA
Nonstop3h 45mMultiple Airlines
Wed 12/116:40 pmMIA - BOS
1 stop5h 50mMultiple Airlines
Deal found 11/4$81
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/41:50 pmBOS - MIA
Nonstop3h 35mJetBlue
Tue 12/1011:19 amMIA - BOS
Nonstop3h 16mJetBlue
Deal found 11/4$127
This Delta deal was found by Cheapflights users on 11/5. 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 12/117:05 amBOS - MIA
Nonstop3h 49mDelta
Mon 12/167:59 pmMIA - BOS
Nonstop3h 30mDelta
Deal found 11/5$143
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Fri 11/225:16 amBOS - MIA
Nonstop3h 41mAmerican Airlines
Thu 12/57:59 pmMIA - BOS
Nonstop3h 31mAmerican Airlines
Deal found 11/5$187

Find flights from Boston to Key Largo within your budget

Customize your flight search to find flights from Boston to Key Largo 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 2,554,862 searches. Data last updated November 5, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Mon 12/9

8:54 am-3:35 pm

1 stop6h 41m

$59

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Wed 12/4

1:50 pm-5:25 pm

Nonstop3h 35m

$63

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Tue 12/3

7:10 am-10:55 am

Nonstop3h 45m

$64

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Fri 1/3

6:30 am-10:11 am

Nonstop3h 41m

$67

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Mon 12/30

7:08 am-11:11 am

Nonstop4h 03m

$85

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Mon 11/25

5:45 am-2:43 pm

2 stops8h 58m

$103

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Mon 11/11

8:57 am-9:48 pm

1 stop12h 51m

$105

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Mon 11/11

5:40 am-6:10 pm

2 stops12h 30m

$184

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Mon 1/13

10:19 am-2:07 pm

Nonstop3h 48m

Miami

Fri 1/17

5:45 am-9:18 am

Nonstop3h 33m

$77

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Wed 1/8

6:30 am-10:11 am

Nonstop3h 41m

Miami

Fri 1/10

5:45 am-9:18 am

Nonstop3h 33m

$78

Flights are sorted by cheapest first

Deals found on 11/4

Showing 1-10 of 15 results
1
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Best time to book a flight from Boston to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo 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.

Travel insights for flights from Boston to Key Largo

Get recent, data-driven insights about flights from Boston to Key Largo including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Boston to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Key Largo. Price data was last updated on November 1, 2024.

The price you pay for your flight from Boston to Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 30 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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What is the cheapest month to book a flight from Boston to Key Largo?

Currently, September is the cheapest month in which you can book a flight from Boston to Key Largo (average of $218). Flying from Boston to Key Largo in March is currently the most expensive (average of $287). 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 KE9?

Find hourly flight availability from Boston to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 5, 2024.

When flying from Boston to Key Largo, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Boston to Key Largo?

Use this chart to determine the cheapest time to fly round-trip from Boston to Key Largo. Price data was last updated on November 3, 2024.

Travelers seeking maximum savings on their Boston to Key Largo flight should consider departing on Tuesday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Find deals

Weekly flight availability from Boston to Key Largo

Explore weekly flight availability from Boston to Key Largo. 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 November 5, 2024.

The most flights from BOS to KE9 are scheduled on a Tuesday (23 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Key Largo by month

Plan your trip to Key Largo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key Largo ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Key Largo when rainfall is around 1.6 in.

Temperature in Key Largo by month

Plan your trip to Key Largo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key Largo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. 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 Key Largo. Reviews last updated November 5, 2024.
To help decide which airline to fly from Boston to Key Largo, see what other customers have to say about Frontier, Spirit Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,082 reviews

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.3

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,082 reviews
Southwest
8.1
Very good
5,082 reviews

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.3

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,830 reviews
Southwest
8.1
Very good
5,082 reviews

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.3

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,486 reviews
Southwest
8.1
Very good
5,082 reviews

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.3

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,215 reviews
Southwest
8.1
Very good
5,082 reviews

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.3

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,082 reviews

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.3

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Boston to Key Largo. 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 Key Largo?

    If you book a flight to Key Largo from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston. There are 14 flights from Logan Intl to Key Largo per day from 6 different airlines.

  • Can I find flights from Boston to Key Largo for under $100 on Cheapflights?

    Yes, there are multiple flights from Boston to Key Largo for under $100. The cheapest flight booked recently is on Frontier for just $31, but on average you can expect to pay $105.

  • Are there nonstop flights from Boston to Key Largo for under $100 on Cheapflights?

    Cheapflights has at least 6 direct flights from Boston to Key Largo under $100. A good price for a nonstop flight from Boston to Key Largo is less than $90.

  • Are there last-minute flights available from Boston to Key Largo for under $100?

    There are currently 7+ open flights from Boston to Key Largo within the next 7 days for less than $100.

  • What days are nonstop flights available from Boston to Key Largo?

    Nonstop flights can be found on the following days: Sunday, Tuesday, Wednesday, Saturday.

  • How popular is this Boston to Key Largo flight route?

    The Boston Logan Intl to Key Largo flight path was viewed by 188 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How many flights depart from Boston to Key Largo on average per day?

    Travelers can expect 15 flights from Boston to Key Largo on average per day.
    Morning (6am - Noon) - 13% of flight departures
    Afternoon (Noon - 6pm) - 67% of flight departures
    Evening (6pm - Midnight) - 20% of flight departures

  • How long is the flight from Boston to Key Largo?

    Departing from Boston to Key Largo will take you 3h 35m. There are 1267 mi between Boston and Key Largo. All flights are typically nonstop.

  • What are the cheapest airlines to fly from Boston to Key Largo one-way?

    $18 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and JetBlue, with prices starting from $25 and $63, respectively.

  • What are the most reliable airlines from Boston to Key Largo?

    Before booking your flight to Key Largo from Boston, check out the most reliable airlines to get you to your destination on time: Etihad Airways (100%), Spirit Airlines (100%), British Airways( 100%).

  • What are the cheapest flights from Boston to Key Largo?

    The cheapest flight price from Boston to Key Largo is $58. On average you can expect to pay $778. The most popular route, (Boston Logan Intl - Miami), can usually be booked for $44.

  • What does BOS to MIA mean?

    Great question - BOS to MIA just means Boston Logan Intl Airport to Miami Airport. Now you’ll know what these unique codes when you look for flights! Fort Lauderdale Airport (FLL), Key West Airport (EYW), Miami Opa Locka Airport (OPF), Fort Lauderdale Executive Airport (FXE), Boca Raton Airport (BCT) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Boston to Key Largo that include extra baggage allowance?

    The amount of baggage you can bring on your Boston to Key Largo flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Boston to Key Largo with specific airlines?

    Yes, Cheapflights allows you to browse and filter Boston to Key Largo flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Boston to Key Largo that include hotel bookings?

    Yes. In addition to deals on Boston to Key Largo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Key Largo?

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

  • Can I find deals for business class flights from Boston to Key Largo?

    Yes. Cheapflights offers flight deals from Boston to Key Largo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Boston to Key Largo that allow pets onboard?

    Many airlines flying from Boston to Key Largo offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Boston to Key Largo?

    Yes, you can often find last-minute deals on Boston to Key Largo flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Boston to Key Largo flight deals updated?

    The Boston to Key Largo flight deals you see on this page were last updated on 11/5.

  • What is the cheapest month to book a flight from Boston to Key Largo?

    Currently, September is the cheapest month in which you can book a flight from Boston to Key Largo (average of $218). Flying from Boston to Key Largo in March is currently the most expensive (average of $287). 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.

See more FAQs

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Top 6 airlines flying from Boston to Key Largo

Discover the top 6 airlines that operate flights from Boston to Key Largo. 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 2,554,862 searches. Data last updated November 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$68Average$258FlexibilityNo cancel feeOn-time65%
FrontierCheapest$81Average$187FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$98Average$399FlexibilityNo cancel feeOn-time62%
DeltaCheapest$121Average$312FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$151Average$356FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$196Average$394FlexibilityNo cancel feeOn-time69%
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