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Key Largo

$90+ 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — MIA
mai 3 — mai 101
sam. 5/3
sam. 5/10
1 adult, Economy
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Cheapflights Tip: The best prices from Jacksonville to Key Largo are usually found in July or June, booked 73 days in advance, depart on a Friday or Wednesday and return on a Wednesday

Cheap flight deals from Jacksonville to Key Largo

Keep the following information in mind while searching for Jacksonville to Key Largo flight deals. Data was last updated avril 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$201
(Frontier)

One-way from

$90
(Frontier)

Popular in

December

Cheapest in

July

Average price

$311
Provider with most accurate pricing for Jacksonville-Miami flight deals.
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Provider most trusted by Cheapflights users for Jacksonville-Miami flights.
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From Jacksonville to Key Largo
Search Deals
One-way flight from Jacksonville to Key Largo
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($114 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in April 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 avril 28, 2025.

This Frontier deal was found by Cheapflights users on 4/28. 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.
sam. 5/2412:25 pmJAX - MIA
1 stop5h 54mFrontier
jeu. 5/299:42 pmMIA - JAX
1 stop13h 21mFrontier
Deal found 4/28$201
This American Airlines deal was found by Cheapflights users on 4/28. 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.
lun. 5/197:27 amJAX - MIA
Nonstop1h 22mAmerican Airlines
jeu. 5/225:30 pmMIA - JAX
Nonstop1h 18mAmerican Airlines
Deal found 4/28$207
This Delta deal was found by Cheapflights users on 4/27. 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.
lun. 5/195:37 pmJAX - MIA
1 stop7h 00mDelta
mar. 5/203:59 pmMIA - JAX
1 stop6h 07mDelta
Deal found 4/27$227
This JetBlue deal was found by Cheapflights users on 4/27. 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.
mar. 5/206:15 amJAX - MIA
1 stop7h 00mJetBlue
ven. 5/302:30 pmMIA - JAX
1 stop9h 08mJetBlue
Deal found 4/27$235
This Southwest deal was found by Cheapflights users on 4/27. 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.
mar. 6/38:00 amJAX - MIA
1 stop8h 15mSouthwest
mer. 6/1112:45 pmMIA - JAX
2 stops8h 10mSouthwest
Deal found 4/27$252
This Mytrip deal was found by Cheapflights users on 4/27. 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.
mar. 6/34:26 pmJAX - MIA
3 stops26h 19mMultiple Airlines
mer. 6/117:56 pmMIA - JAX
2 stops12h 58mMultiple Airlines
Deal found 4/27$332

Cheapflights Fare Finder

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 avril 28, 2025.
Use the filters below to find and compare flights from Jacksonville to Key Largo that are best for you.

Fly from

Jacksonville

Fly to

Key Largo

Route

Depart

Return

Price

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

sam. 5/24

12:25 pm-6:19 pm

1 stop5h 54m

Miami

jeu. 5/29

9:42 pm-11:03 am

1 stop13h 21m

$201

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

lun. 5/19

7:27 am-8:49 am

Nonstop1h 22m

Miami

jeu. 5/22

5:30 pm-6:48 pm

Nonstop1h 18m

$207

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

lun. 5/19

5:37 pm-12:37 am

1 stop7h 00m

Miami

mar. 5/20

3:59 pm-10:06 pm

1 stop6h 07m

$227

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

mar. 5/20

6:15 am-1:15 pm

1 stop7h 00m

Miami

ven. 5/30

2:30 pm-11:38 pm

1 stop9h 08m

$235

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

mar. 6/3

8:00 am-4:15 pm

1 stop8h 15m

Miami

mer. 6/11

12:45 pm-8:55 pm

2 stops8h 10m

$252

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

mar. 6/3

4:26 pm-6:45 pm

3 stops26h 19m

Miami

mer. 6/11

7:56 pm-8:54 am

2 stops12h 58m

$332

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

sam. 5/24

9:20 am-11:44 am

1 stop26h 24m

Miami

ven. 5/30

7:06 am-8:07 pm

2 stops13h 01m

$510

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

jeu. 5/15

9:28 am-5:13 pm

1 stop7h 45m

$90

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

dim. 5/18

7:28 pm-8:48 pm

Nonstop1h 20m

$104

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

dim. 5/18

5:10 am-9:31 am

1 stop4h 21m

$114

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 14 results
1
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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.

Cheapflights Insights

Everything you need to know about your flight from Jacksonville to Key Largo

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 April 25, 2025.

To ensure you get the cheapest price possible for a flight from Jacksonville to Key Largo, you should look to book at least 73 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 $228). 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 avril 28, 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. Thursday 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 avril 28, 2025.

The most flights from JAX to KE9 are scheduled on a Tuesday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (14 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 avril 28, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta and United Airlines 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
8.0
Very good
4,292 reviews

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.6

Food

7.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.
Southwest
8.0
Very good
4,292 reviews
Southwest
8.0
Very good
4,292 reviews

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.6

Food

7.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.
Delta
8.0
Very good
7,929 reviews
Southwest
8.0
Very good
4,292 reviews

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.6

Food

7.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,292 reviews

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.6

Food

7.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.
JetBlue
7.3
Good
2,922 reviews
Southwest
8.0
Very good
4,292 reviews

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.6

Food

7.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,292 reviews

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.6

Food

7.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 14 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, 62 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?

    $90 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $104 and $114, 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: Aer Lingus (91%), Envoy Air (77%), Royal Air Maroc( 77%).

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

    On average you can expect to pay $635 for a flight from Jacksonville to Key Largo. The cheapest flight overall is $152 while the most popular route, (Jacksonville - Miami) is currently priced at $200.

  • 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 $228). 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 avril 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$80Average$170FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$123Average$270FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$124Average$392FlexibilityNo cancel feeOn-time71%
DeltaCheapest$156Average$385FlexibilityNo cancel feeOn-timeN/A

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