$62+ 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 6/13. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — MIA
Jun 8 — Jun 151
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 August or July, booked 60 days in advance, depart on a Friday or Monday 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 May 9, 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 May 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/76:30 pm
JAX
- MIA
1 stop21h 57m
Frontier
Sat 6/135:51 pm
MIA
- JAX
1 stop23h 42m
Frontier
Deal found 5/4![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:28 pm
JAX
- MIA
1 stop19h 21m
Frontier
Thu 6/1811:19 am
MIA
- JAX
1 stop6h 14m
Frontier
Deal found 5/4![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:30 pm
JAX
- MIA
1 stop28h 17m
Frontier
Wed 6/1011:19 am
MIA
- JAX
1 stop6h 14m
Frontier
Deal found 5/5![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/156:28 pm
JAX
- MIA
1 stop19h 21m
Frontier
Thu 6/188:30 am
MIA
- JAX
1 stop9h 03m
Frontier
Deal found 5/5![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/196:28 pm
JAX
- MIA
1 stop26h 07m
Frontier
Fri 6/268:30 am
MIA
- JAX
1 stop9h 03m
Frontier
Deal found 5/5![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:30 pm
JAX
- MIA
1 stop18h 50m
Frontier
Wed 6/1011:19 am
MIA
- JAX
1 stop6h 14m
Frontier
Deal found 5/4![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Sat 6/136:28 pm
JAX
- MIA
1 stop5h 06m
Frontier
Thu 7/28:30 am
MIA
- JAX
1 stop9h 03m
Frontier
Deal found 5/8![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Fri 6/126:28 pm
JAX
- MIA
2 stops24h 59m
Frontier
Wed 6/1711:19 am
MIA
- JAX
1 stop6h 14m
Frontier
Deal found 5/8![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:28 pm
JAX
- MIA
2 stops26h 00m
Frontier
Fri 7/108:30 am
MIA
- JAX
1 stop9h 03m
Frontier
Deal found 5/4![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Wed 6/36:30 pm
JAX
- MIA
2 stops15h 57m
Frontier
Thu 6/118:30 am
MIA
- JAX
1 stop9h 03m
Frontier
Deal found 5/8![Frontier logo]()
$173
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 May 9, 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 May 9, 2026.
This Southwest deal was found by Cheapflights users on 5/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/211:50 am
JAX
- MIA
2 stops10h 05m
Southwest
Wed 6/312:35 pm
MIA
- JAX
1 stop8h 10m
Southwest
Deal found 5/5![Southwest logo]()
$332
This Southwest deal was found by Cheapflights users on 5/6. 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.
Sat 10/176:35 am
JAX
- MIA
2 stops8h 00m
Southwest
Sat 10/245:55 am
MIA
- JAX
1 stop7h 20m
Southwest
Deal found 5/6![Southwest logo]()
$338
This Southwest deal was found by Cheapflights users on 5/8. 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.
Thu 9/247:50 am
JAX
- MIA
2 stops8h 20m
Southwest
Wed 10/76:35 am
MIA
- JAX
2 stops10h 20m
Southwest
Deal found 5/8![Southwest logo]()
$340
This Southwest deal was found by Cheapflights users on 5/8. 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.
Wed 7/227:55 am
JAX
- MIA
1 stop6h 30m
Southwest
Fri 7/245:25 am
MIA
- JAX
2 stops7h 10m
Southwest
Deal found 5/8![Southwest logo]()
$355
This Southwest deal was found by Cheapflights users on 5/6. 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.
Thu 8/61:00 pm
JAX
- MIA
2 stops9h 05m
Southwest
Tue 8/119:15 am
MIA
- JAX
2 stops10h 30m
Southwest
Deal found 5/6![Southwest logo]()
$360
This Southwest deal was found by Cheapflights users on 5/8. 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.
Mon 6/157:45 am
JAX
- MIA
2 stops8h 40m
Southwest
Tue 6/3011:45 am
MIA
- JAX
2 stops9h 55m
Southwest
Deal found 5/8![Southwest logo]()
$360
This Southwest deal was found by Cheapflights users on 5/8. 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.
Thu 6/412:55 pm
JAX
- MIA
2 stops9h 10m
Southwest
Thu 6/115:25 am
MIA
- JAX
2 stops8h 10m
Southwest
Deal found 5/8![Southwest logo]()
$363
This Southwest deal was found by Cheapflights users on 5/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3012:30 pm
JAX
- MIA
2 stops9h 35m
Southwest
Mon 6/85:25 am
MIA
- JAX
2 stops8h 10m
Southwest
Deal found 5/4![Southwest logo]()
$363
This Southwest deal was found by Cheapflights users on 5/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/512:40 pm
JAX
- MIA
2 stops9h 25m
Southwest
Tue 6/95:45 am
MIA
- JAX
2 stops7h 55m
Southwest
Deal found 5/7![Southwest logo]()
$368
This Southwest deal was found by Cheapflights users on 5/8. 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 5/293:25 pm
JAX
- MIA
2 stops6h 35m
Southwest
Sat 5/306:15 am
MIA
- JAX
2 stops7h 55m
Southwest
Deal found 5/8![Southwest logo]()
$371
Last-minute flights from Jacksonville to Key LargoDiscover last-minute flight deals from Jacksonville to Key Largo. Data last updated May 9, 2026 and is based on user searches.
Discover last-minute flight deals from Jacksonville to Key Largo. Data last updated May 9, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:30 pm
JAX
- MIA
1 stop28h 17m
Frontier
Wed 6/1011:19 am
MIA
- JAX
1 stop6h 14m
Frontier
Deal found 5/5![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:30 pm
JAX
- MIA
1 stop18h 50m
Frontier
Wed 6/1011:19 am
MIA
- JAX
1 stop6h 14m
Frontier
Deal found 5/4![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Wed 6/36:30 pm
JAX
- MIA
2 stops15h 57m
Frontier
Thu 6/118:30 am
MIA
- JAX
1 stop9h 03m
Frontier
Deal found 5/8![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/76:30 pm
JAX
- MIA
1 stop21h 57m
Frontier
Sat 6/135:51 pm
MIA
- JAX
1 stop23h 42m
Frontier
Deal found 5/4![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Fri 6/126:28 pm
JAX
- MIA
2 stops24h 59m
Frontier
Wed 6/1711:19 am
MIA
- JAX
1 stop6h 14m
Frontier
Deal found 5/8![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Sat 6/136:28 pm
JAX
- MIA
1 stop5h 06m
Frontier
Thu 7/28:30 am
MIA
- JAX
1 stop9h 03m
Frontier
Deal found 5/8![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/156:28 pm
JAX
- MIA
1 stop19h 21m
Frontier
Thu 6/188:30 am
MIA
- JAX
1 stop9h 03m
Frontier
Deal found 5/5![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:28 pm
JAX
- MIA
1 stop19h 21m
Frontier
Thu 6/1811:19 am
MIA
- JAX
1 stop6h 14m
Frontier
Deal found 5/4![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:28 pm
JAX
- MIA
2 stops26h 00m
Frontier
Fri 7/108:30 am
MIA
- JAX
1 stop9h 03m
Frontier
Deal found 5/4![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/196:28 pm
JAX
- MIA
1 stop26h 07m
Frontier
Fri 6/268:30 am
MIA
- JAX
1 stop9h 03m
Frontier
Deal found 5/5![Frontier logo]()
$147
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 May 9, 2026.
Search for one-way flight options from Jacksonville to Key Largo. Find affordable one-way fares based on user searches. Data last updated May 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/136:28 pm
JAX
- MIA
1 stop5h 06m
Frontier
Deal found 5/4![Frontier logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:30 pm
JAX
- MIA
1 stop28h 17m
Frontier
Deal found 5/5![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:30 pm
JAX
- MIA
1 stop28h 17m
Frontier
Deal found 5/5![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 6/126:28 pm
JAX
- MIA
1 stop29h 06m
Frontier
Deal found 5/7![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:28 pm
JAX
- MIA
1 stop22h 05m
Frontier
Deal found 5/5![Frontier logo]()
$90
This Super.com deal was found by Cheapflights users on 5/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/103:59 pm
JAX
- MIA
1 stop6h 38m
Frontier
Deal found 5/5![Frontier logo]()
$94
This Frontier deal was found by Cheapflights users on 5/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:28 pm
JAX
- MIA
1 stop4h 35m
Frontier
Deal found 5/8![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Tue 6/26:30 pm
JAX
- MIA
1 stop28h 17m
Frontier
Deal found 5/6![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 6/76:30 pm
JAX
- MIA
2 stops15h 57m
Frontier
Deal found 5/9![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 5/9. 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.
Tue 7/76:28 pm
JAX
- MIA
2 stops27h 51m
Frontier
Deal found 5/9![Frontier logo]()
$102
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 May 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $123 (Kiwi.com) |
One-way from | $62 (Kiwi.com) |
Popular in | October |
Cheapest in | August |
Average price | $530 |
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 May 9, 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 - MIA
JAXMIA
Jacksonville
Tue 6/2
11:50 am-9:55 pm
2 stops10h 05m
Miami
Wed 6/3
12:35 pm-8:45 pm
1 stop8h 10m
$332
JacksonvilleMiami
JAX - MIA
JAXMIA
Jacksonville
Sat 10/17
6:35 am-2:35 pm
2 stops8h 00m
Miami
Sat 10/24
5:55 am-1:15 pm
1 stop7h 20m
$338
JacksonvilleMiami
JAX - MIA
JAXMIA
Jacksonville
Thu 9/24
7:50 am-4:10 pm
2 stops8h 20m
Miami
Wed 10/7
6:35 am-4:55 pm
2 stops10h 20m
$340
Quickest round-trip
JacksonvilleMiami
JAX - MIA
JAXMIA
Jacksonville
Wed 7/22
7:55 am-2:25 pm
1 stop6h 30m
Miami
Fri 7/24
5:25 am-12:35 pm
2 stops7h 10m
$355
JacksonvilleMiami
JAX - MIA
JAXMIA
Jacksonville
Thu 8/6
1:00 pm-10:05 pm
2 stops9h 05m
Miami
Tue 8/11
9:15 am-7:45 pm
2 stops10h 30m
$360
JacksonvilleMiami
JAX - MIA
JAXMIA
Jacksonville
Mon 6/15
7:45 am-4:25 pm
2 stops8h 40m
Miami
Tue 6/30
11:45 am-9:40 pm
2 stops9h 55m
$360
JacksonvilleMiami
JAX - MIA
JAXMIA
Jacksonville
Thu 6/4
12:55 pm-10:05 pm
2 stops9h 10m
Miami
Thu 6/11
5:25 am-1:35 pm
2 stops8h 10m
$363
JacksonvilleMiami
JAX - MIA
JAXMIA
Jacksonville
Sat 5/30
12:30 pm-10:05 pm
2 stops9h 35m
Miami
Mon 6/8
5:25 am-1:35 pm
2 stops8h 10m
$363
JacksonvilleMiami
JAX - MIA
JAXMIA
Jacksonville
Fri 6/5
12:40 pm-10:05 pm
2 stops9h 25m
Miami
Tue 6/9
5:45 am-1:40 pm
2 stops7h 55m
$368
JacksonvilleMiami
JAX - MIA
JAXMIA
Jacksonville
Fri 5/29
3:25 pm-10:00 pm
2 stops6h 35m
Miami
Sat 5/30
6:15 am-2:10 pm
2 stops7h 55m
$371
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 May 9, 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 at noon tend to be the most expensive. A flight in the evening could potentially save you up to 46% on airfare.
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 May 2, 2026.
Travelers seeking maximum savings on their Jacksonville to Key Largo flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday 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 May 9, 2026.
The most flights from JAX to KE9 are scheduled on a Wednesday (13 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 on average).
How much does it cost to fly round-trip from Jacksonville to Key Largo?
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 May 9, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andAmerican Airlines 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.
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
7.9
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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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Jacksonville and Key Largo flights
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Top 5 airlines flying from Jacksonville to Key Largo
Discover the top 5 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 May 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$147 | Average$233 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$158 | Average$472 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$160 | Average$244 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$176 | Average$351 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$201 | Average$416 | FlexibilityNo cancel fee | On-time71% |