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Key Largo

$119+ Cheap flights from Jacksonville, NC (OAJ) 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
OAJ — MIA
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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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 July 3, 2025.

Round-trip from

$217
(Delta)

One-way from

$119
(Delta)

Popular in

February

Cheapest in

August

Average price

$311
From Jacksonville Albert J Ellis to Key Largo
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One-way flight from Jacksonville Albert J Ellis to Key Largo
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Highest demand for flights based on searches. 27% potential increase in price ($174 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This Delta deal was found by Cheapflights users on 7/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/17:14 pmOAJ - MIA
1 stop5h 41mDelta
Tue 8/56:55 amMIA - OAJ
1 stop4h 19mDelta
Deal found 7/2$217
This American Airlines deal was found by Cheapflights users on 7/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/318:03 pmOAJ - MIA
1 stop4h 26mAmerican Airlines
Sat 11/87:05 amMIA - OAJ
1 stop5h 24mAmerican Airlines
Deal found 7/3$247

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 July 3, 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

OAJ - MIA

OAJMIA

Jacksonville Albert J Ellis

Fri 8/1

7:14 pm-12:55 am

1 stop5h 41m

Miami

Tue 8/5

6:55 am-11:14 am

1 stop4h 19m

$217

JacksonvilleMiami

OAJ - MIA

OAJMIA

Jacksonville Albert J Ellis

Fri 10/31

8:03 pm-12:29 am

1 stop4h 26m

Miami

Sat 11/8

7:05 am-12:29 pm

1 stop5h 24m

$247

JacksonvilleMiami

OAJ - MIA

OAJMIA

Jacksonville Albert J Ellis

Thu 9/11

6:55 pm-12:23 am

1 stop5h 28m

$119

JacksonvilleMiami

OAJ - MIA

OAJMIA

Jacksonville Albert J Ellis

Thu 9/11

2:00 pm-8:39 pm

2 stops6h 39m

$492

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

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

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

Currently, September is the cheapest month in which you can book a flight from Jacksonville, North Carolina to Key Largo (average of $231). Flying from Jacksonville, North Carolina 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 OAJ 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 July 3, 2025.

When flying from Jacksonville, North Carolina 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, North Carolina 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, North Carolina to Key Largo flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 July 3, 2025.
Peruse reviews from past customers who have flown with Delta and American Airlines from Jacksonville to Key Largo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Brian,Sep 2023

GSO - LGA

Entire process from checking bags to flight to landing to luggage retrieval was very smooth.
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Brian,Sep 2023

GSO - LGA

Entire process from checking bags to flight to landing to luggage retrieval was very smooth.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Brian,Sep 2023

GSO - LGA

Entire process from checking bags to flight to landing to luggage retrieval was very smooth.

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?

    Most people fly from Jacksonville Albert J Ellis (OAJ) if they book a flight from Jacksonville to Key Largo. On average, Albert J Ellis has 0 outbound flights to Key Largo per day from 2 airlines. Jacksonville Albert J Ellis is conveniently located just 11.3 mi from Jacksonville’s city center.

  • 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, North Carolina to Key Largo?

    Currently, September is the cheapest month in which you can book a flight from Jacksonville, North Carolina to Key Largo (average of $231). Flying from Jacksonville, North Carolina 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 2 airlines flying from Jacksonville to Key Largo

Discover the top 2 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$222Average$427FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$464FlexibilityNo cancel feeOn-time71%

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