$68+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — MIA
Sep 10 — Sep 171
Round-trip
1 adult, Economy
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Find cheap flights from Jacksonville to Key Largo with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Jacksonville to Key Largo are usually found in December or April, booked 60 days in advance, depart on a Saturday or Friday and return on a Saturday
Cheap flight deals from Jacksonville to Key Largo
Cheapest
Best
Last-minute
One-way
Cheapest flights from Jacksonville to Key LargoExplore 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 August 11, 2026.
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 August 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 8/317:05 pm -
1 stop18h 27m
Mon 9/145:32 am -
1 stop13h 29m
Deal found 8/6![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 9/287:46 pm -
1 stop14h 44m
Thu 10/15:32 am -
1 stop13h 29m
Deal found 8/9![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 9/217:46 pm -
1 stop14h 44m
Thu 9/245:32 am -
1 stop13h 29m
Deal found 8/9![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 10/17:46 pm -
1 stop24h 47m
Mon 10/55:32 am -
1 stop13h 29m
Deal found 8/10![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 10/156:46 pm -
1 stop14h 12m
Mon 10/197:00 am -
1 stop10h 51m
Deal found 8/9![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 10/226:46 pm -
1 stop14h 12m
Wed 10/287:17 pm -
1 stop22h 34m
Deal found 8/10![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 9/67:05 pm -
1 stop18h 27m
Sun 9/139:30 pm -
1 stop21h 31m
Deal found 8/9![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 9/77:05 pm -
1 stop18h 27m
Mon 9/145:32 am -
1 stop13h 29m
Deal found 8/10![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Fri 9/47:05 pm -
1 stop28h 00m
Fri 9/115:32 am -
1 stop13h 29m
Deal found 8/7![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 8/10. 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.
Fri 10/96:46 pm -
1 stop14h 12m
Sun 10/117:00 am -
1 stop10h 51m
Deal found 8/10![Frontier logo]()
$145
Best flights from Jacksonville to Key LargoDiscover carefully curated flight deals from Jacksonville to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
Discover carefully curated flight deals from Jacksonville to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
This Delta deal was found by Cheapflights users on 8/7. 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 11/1112:59 pm -
1 stop5h 41m
Fri 11/138:00 am -
1 stop3h 54m
Deal found 8/7![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 8/6. 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.
Fri 9/111:00 pm -
2 stops9h 10m
Sat 9/196:30 am -
2 stops9h 30m
Deal found 8/6![Southwest logo]()
$272
This Delta deal was found by Cheapflights users on 8/9. 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 9/1611:15 am -
1 stop4h 15m
Wed 9/238:25 am -
1 stop6h 24m
Deal found 8/9![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 8/9. 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.
Fri 9/111:00 pm -
2 stops9h 10m
Sun 9/136:45 am -
2 stops6h 35m
Deal found 8/9![Southwest logo]()
$323
This Delta deal was found by Cheapflights users on 8/6. 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 11/23:53 pm -
1 stop3h 50m
Thu 11/56:00 am -
1 stop4h 20m
Deal found 8/6![Delta logo]()
$299
This Delta deal was found by Cheapflights users on 8/10. 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 9/166:00 am -
1 stop4h 58m
Wed 9/166:25 pm -
1 stop5h 33m
Deal found 8/10![Delta logo]()
$303
This Delta deal was found by Cheapflights users on 8/7. 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 10/27:59 pm -
1 stop4h 56m
Mon 10/57:40 pm -
1 stop4h 18m
Deal found 8/7![Delta logo]()
$303
This Southwest deal was found by Cheapflights users on 8/11. 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.
Sun 8/301:00 pm -
2 stops9h 50m
Thu 11/127:05 am -
2 stops7h 50m
Deal found 8/11![Southwest logo]()
$375
This Southwest deal was found by Cheapflights users on 8/8. 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.
Fri 11/63:35 pm -
1 stop7h 30m
Sun 11/86:50 am -
1 stop9h 15m
Deal found 8/8![Southwest logo]()
$383
This Southwest deal was found by Cheapflights users on 8/10. 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 9/306:15 am -
2 stops9h 15m
Sat 10/37:00 am -
2 stops8h 55m
Deal found 8/10![Southwest logo]()
$393
Last-minute flights from Jacksonville to Key LargoDiscover last-minute flight deals from Jacksonville to Key Largo. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Jacksonville to Key Largo. Data last updated August 11, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 8/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:08 am -
1 stop8h 37m
Tue 8/2511:10 am -
1 stop7h 00m
Deal found 8/10![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 8/317:05 pm -
1 stop18h 27m
Mon 9/145:32 am -
1 stop13h 29m
Deal found 8/6![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Fri 9/47:05 pm -
1 stop28h 00m
Fri 9/115:32 am -
1 stop13h 29m
Deal found 8/7![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 9/67:05 pm -
1 stop18h 27m
Sun 9/139:30 pm -
1 stop21h 31m
Deal found 8/9![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 9/77:05 pm -
1 stop18h 27m
Mon 9/145:32 am -
1 stop13h 29m
Deal found 8/10![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 8/10. 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.
Wed 9/97:46 pm -
1 stop19h 38m
Wed 9/169:43 pm -
1 stop21h 18m
Deal found 8/10![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Fri 9/117:46 pm -
1 stop14h 44m
Fri 9/185:32 am -
1 stop13h 29m
Deal found 8/7![Frontier logo]()
$145
This Frontier deal was found by Cheapflights users on 8/10. 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.
Mon 9/149:15 am -
1 stop10h 30m
Sat 9/198:50 pm -
1 stop11h 30m
Deal found 8/10![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 9/217:46 pm -
1 stop14h 44m
Thu 9/245:32 am -
1 stop13h 29m
Deal found 8/9![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 9/287:46 pm -
1 stop14h 44m
Thu 10/15:32 am -
1 stop13h 29m
Deal found 8/9![Frontier logo]()
$131
One-way flights from Jacksonville to Key LargoSearch for one-way flight options from Jacksonville to Key Largo. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
Search for one-way flight options from Jacksonville to Key Largo. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 8/317:05 pm -
1 stop18h 27m
Deal found 8/10![Frontier logo]()
$68
This Trip.com deal was found by Cheapflights users on 8/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:46 pm -
1 stop24h 52m
Deal found 8/6![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 10/57:46 pm -
1 stop24h 52m
Deal found 8/7![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 11/96:46 pm -
1 stop23h 26m
Deal found 8/11![Frontier logo]()
$72
This Super.com deal was found by Cheapflights users on 8/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:08 am -
1 stop8h 37m
Deal found 8/10![Frontier logo]()
$73
This Super.com deal was found by Cheapflights users on 8/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:08 am -
1 stop8h 37m
Deal found 8/9![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/67:05 pm -
1 stop18h 27m
Deal found 8/8![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Fri 10/96:46 pm -
1 stop14h 12m
Deal found 8/7![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 11/86:46 pm -
1 stop17h 19m
Deal found 8/11![Frontier logo]()
$77
This Trip.com deal was found by Cheapflights users on 8/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:05 pm -
1 stop21h 16m
Deal found 8/10![Frontier logo]()
$78
This Super.com deal was found by Cheapflights users on 8/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:15 am -
1 stop10h 30m
Deal found 8/9![Frontier logo]()
$79
Find 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 August 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $125 (Kiwi.com) |
One-way from | $68 (Kiwi.com) |
Popular in | October |
Cheapest in | December |
Average price | $519 |
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 August 11, 2026.
Use the filters below to find and compare flights from Jacksonville to Key Largo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
JacksonvilleMiami
JAX Jacksonville - MIA Miami
JAXMIA
Jacksonville
Wed 11/11
12:59 pm-6:40 pm
1 stop5h 41m
Miami
Fri 11/13
8:00 am-11:54 am
1 stop3h 54m
$247
JacksonvilleMiami
JAX Jacksonville - MIA Miami
JAXMIA
Jacksonville
Wed 9/16
11:15 am-3:30 pm
1 stop4h 15m
Miami
Wed 9/23
8:25 am-2:49 pm
1 stop6h 24m
$247
JacksonvilleMiami
JAX Jacksonville - MIA Miami
JAXMIA
Jacksonville
Fri 9/11
1:00 pm-10:10 pm
2 stops9h 10m
Miami
Sat 9/19
6:30 am-4:00 pm
2 stops9h 30m
$272
Quickest round-trip
JacksonvilleMiami
JAX Jacksonville - MIA Miami
JAXMIA
Jacksonville
Mon 11/2
3:53 pm-7:43 pm
1 stop3h 50m
Miami
Thu 11/5
6:00 am-10:20 am
1 stop4h 20m
$299
JacksonvilleMiami
JAX Jacksonville - MIA Miami
JAXMIA
Jacksonville
Wed 9/16
6:00 am-10:58 am
1 stop4h 58m
Miami
Wed 9/16
6:25 pm-11:58 pm
1 stop5h 33m
$303
JacksonvilleMiami
JAX Jacksonville - MIA Miami
JAXMIA
Jacksonville
Fri 10/2
7:59 pm-12:55 am
1 stop4h 56m
Miami
Mon 10/5
7:40 pm-11:58 pm
1 stop4h 18m
$303
JacksonvilleMiami
JAX Jacksonville - MIA Miami
JAXMIA
Jacksonville
Fri 9/11
1:00 pm-10:10 pm
2 stops9h 10m
Miami
Sun 9/13
6:45 am-1:20 pm
2 stops6h 35m
$323
JacksonvilleMiami
JAX Jacksonville - MIA Miami
JAXMIA
Jacksonville
Sun 8/30
1:00 pm-10:50 pm
2 stops9h 50m
Miami
Thu 11/12
7:05 am-2:55 pm
2 stops7h 50m
$375
JacksonvilleMiami
JAX Jacksonville - MIA Miami
JAXMIA
Jacksonville
Fri 11/6
3:35 pm-11:05 pm
1 stop7h 30m
Miami
Sun 11/8
6:50 am-4:05 pm
1 stop9h 15m
$383
JacksonvilleMiami
JAX Jacksonville - MIA Miami
JAXMIA
Jacksonville
Wed 9/30
6:15 am-3:30 pm
2 stops9h 15m
Miami
Sat 10/3
7:00 am-3:55 pm
2 stops8h 55m
$393
Showing 1-10 of 21 resultsSorted by cheapest first
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.
JAX-MIA
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
JAX-KE9
JAX-MIA
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 August 11, 2026.
One of the essential ways to save on airfare from Jacksonville to Key Largo is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 32% on airfare.
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 August 11, 2026.
The most flights from JAX to KE9 are scheduled on a Monday (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Jacksonville to Key Largo?
Airfare is below average for this route at the moment.
Jacksonville to Key Largo flights typically cost between $272 and $547 in August.The cheapest round-trip price found within the last 5 days was $125 on Frontier (Aug 31-Sep 14).
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 August 8, 2026.
Travelers seeking maximum savings on their Jacksonville to Key Largo flight should consider departing on Sunday evenings when fares are most often at their lowest. Tuesday at noon 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 August 11, 2026.
Get a feel of what it's like to fly with Southwest,American Airlines, andJetBlue from Jacksonville to Key Largo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
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.
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Alternative routes for Jacksonville to Key Largo
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Complete your trip to Key Largo by adding a car rental and/or hotel reservation to your travel itinerary.
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Jacksonville and Key Largo flights
Browse other Jacksonville and Key Largo flight options. Last updated on August 11, 2026.
Other flights from Jacksonville
Browse through other flights departing from Jacksonville. Flights are based on user searches made on Cheapflights and were last updated on August 11, 2026.
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Jacksonville to Key Largo flights
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Top 6 airlines flying from Jacksonville to Key Largo
Discover the top 6 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 August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$98 | Average$139 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$138 | Average$266 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$153 | Average$314 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$157 | Average$422 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$217 | Average$461 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$252 | Average$383 | FlexibilityNo cancel fee | On-time63% |