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Key Largo

$54+ Cheap flights from Jacksonville (JAX) 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — MIA
Jan 27 — Feb 31
Mon 1/27
Mon 2/3
1 adult, Economy
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The best prices from Jacksonville to Key Largo are usually found in May or July, booked 55 days in advance, depart on a Friday or Monday and return on a Wednesday

Cheap flight deals from Jacksonville to Key Largo

Discover tips and strategies to find the most affordable flight options for your journey from Jacksonville (JAX) 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 January 22, 2025.

Round-trip from

$110
(Frontier)

One-way from

$54
(Flightnetwork)

Popular in

December

Cheapest in

May

Average price

$356
From Jacksonville to Key Largo
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One-way flight from Jacksonville to Key Largo
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Highest demand for flights based on searches. 28% potential increase in price ($115 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Jacksonville to Key Largo

Cheapest flights from Jacksonville to Key Largo
Explore the most affordable flight options available from Jacksonville to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 22, 2025.

This Frontier deal was found by Cheapflights users on 1/21. 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.
Sat 2/229:25 amJAX - MIA
1 stop11h 26mFrontier
Wed 2/266:23 pmMIA - JAX
1 stop13h 20mFrontier
Deal found 1/21$110
This eDestinos deal was found by Cheapflights users on 1/22. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/216:57 pmJAX - MIA
1 stop23h 02mMultiple Airlines
Fri 2/285:45 amMIA - JAX
1 stop26h 50mMultiple Airlines
Deal found 1/22$188
This JetBlue deal was found by Cheapflights users on 1/22. 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 3/510:34 amJAX - MIA
1 stop7h 48mJetBlue
Wed 3/127:00 amMIA - JAX
1 stop8h 40mJetBlue
Deal found 1/22$215
This Southwest deal was found by Cheapflights users on 1/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/266:45 amJAX - MIA
1 stop7h 05mSouthwest
Wed 2/263:50 pmMIA - JAX
1 stop3h 50mSouthwest
Deal found 1/22$269
This Delta deal was found by Cheapflights users on 1/22. 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.
Mon 2/106:07 amJAX - MIA
1 stop12h 47mDelta
Thu 2/136:00 amMIA - JAX
1 stop4h 13mDelta
Deal found 1/22$271
This American Airlines deal was found by Cheapflights users on 1/22. 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.
Sat 2/226:15 pmJAX - MIA
1 stop13h 53mAmerican Airlines
Sun 2/239:55 amMIA - JAX
Nonstop1h 29mAmerican Airlines
Deal found 1/22$366
This United Airlines deal was found by Cheapflights users on 1/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/199:25 amJAX - MIA
1 stop11h 01mUnited Airlines
Wed 2/267:00 amMIA - JAX
2 stops10h 46mUnited Airlines
Deal found 1/22$475

Find flights from Jacksonville to Key Largo within your budget

Customize your flight search to find flights from Jacksonville 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 2,558,603 searches. Data last updated January 22, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Sat 2/22

9:25 am-8:51 pm

1 stop11h 26m

Miami

Wed 2/26

6:23 pm-7:43 am

1 stop13h 20m

$110

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Fri 2/21

6:57 pm-5:59 pm

1 stop23h 02m

Miami

Fri 2/28

5:45 am-8:35 am

1 stop26h 50m

$188

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Wed 3/5

10:34 am-6:22 pm

1 stop7h 48m

Miami

Wed 3/12

7:00 am-3:40 pm

1 stop8h 40m

$215

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Wed 2/26

6:45 am-1:50 pm

1 stop7h 05m

Miami

Wed 2/26

3:50 pm-7:40 pm

1 stop3h 50m

$269

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Mon 2/10

6:07 am-6:54 pm

1 stop12h 47m

Miami

Thu 2/13

6:00 am-10:13 am

1 stop4h 13m

$271

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Sat 2/22

6:15 pm-8:08 am

1 stop13h 53m

Miami

Sun 2/23

9:55 am-11:24 am

Nonstop1h 29m

$366

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Wed 2/19

9:25 am-8:26 pm

1 stop11h 01m

Miami

Wed 2/26

7:00 am-5:46 pm

2 stops10h 46m

$475

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Tue 3/25

8:43 am-4:04 pm

1 stop7h 21m

$54

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Wed 2/5

11:46 am-6:15 pm

1 stop6h 29m

$126

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Mon 2/24

3:12 pm-8:53 am

2 stops17h 41m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

Showing 1-10 of 14 results
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Best time to book a flight from Jacksonville to Key Largo

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Jacksonville to Key Largo. Price data was last updated on January 17, 2025.

To ensure you get the cheapest price possible for a flight from Jacksonville to Key Largo, you should look to book at least 55 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Jacksonville to Key Largo (average of $230). Flying from Jacksonville to Key Largo in March is currently the most expensive (average of $289). 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 JAX to KE9?

Find hourly flight availability from Jacksonville 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 January 22, 2025.

When flying from Jacksonville 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 Jacksonville to Key Largo?

Use this chart to determine the cheapest time to fly round-trip from Jacksonville to Key Largo. Price data was last updated on December 16, 2024.

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

Weekly flight availability from Jacksonville to Key Largo

Explore weekly flight availability from Jacksonville 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 January 22, 2025.

The most flights from JAX to KE9 are scheduled on a Wednesday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 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 January 22, 2025.
Peruse reviews from past customers who have flown with Frontier, JetBlue and Southwest from Jacksonville to Key Largo to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,654 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Boarding

8.2

Food

7.2

Entertainment

7.7

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

Southwest
8.1
Very good
4,654 reviews
Southwest
8.1
Very good
4,654 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Boarding

8.2

Food

7.2

Entertainment

7.7

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

Delta
8.0
Very good
8,514 reviews
Southwest
8.1
Very good
4,654 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Boarding

8.2

Food

7.2

Entertainment

7.7

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

JetBlue
7.4
Good
3,190 reviews
Southwest
8.1
Very good
4,654 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Boarding

8.2

Food

7.2

Entertainment

7.7

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

United Airlines
7.4
Good
8,975 reviews
Southwest
8.1
Very good
4,654 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Boarding

8.2

Food

7.2

Entertainment

7.7

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,654 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Boarding

8.2

Food

7.2

Entertainment

7.7

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

Related info for your journey

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

    If you book a flight to Key Largo from Jacksonville, you will be flying from Jacksonville, which is the city’s only airport. Jacksonville (JAX) is located 11.2 mi from the center of Jacksonville. There are 17 flights from Jacksonville to Key Largo per day from 4 different airlines.

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

    Within the past month, 82 users have taken a look at flights from Jacksonville to Key Largo.

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

    $54 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on JetBlue and Delta, with prices starting from $126 and $138, respectively.

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

    Before booking your flight to Key Largo from Jacksonville, check out the most reliable airlines to get you to your destination on time: Atlas Air (100%), Envoy Air (90%), Qatar Airways( 89%).

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

    On average you can expect to pay $1,260 for a flight from Jacksonville to Key Largo. The cheapest flight overall is $150 while the most popular route, (Jacksonville - Miami) is currently priced at $120.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Jacksonville 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.

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

    Currently, September is the cheapest month in which you can book a flight from Jacksonville to Key Largo (average of $230). Flying from Jacksonville to Key Largo in March is currently the most expensive (average of $289). 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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Top 4 airlines flying from Jacksonville to Key Largo

Discover the top 4 airlines that operate flights from Jacksonville 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 2,558,603 searches. Data last updated January 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$224FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$126Average$354FlexibilityNo cancel feeOn-time71%
DeltaCheapest$156Average$391FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$312Average$338FlexibilityNo cancel feeOn-time63%
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