$179+ 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 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
OAJ — MIA
May 10 — May 171
Round-trip
1 adult, Economy
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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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Jacksonville to Key Largo
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Best
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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 April 10, 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 April 10, 2026.
This Delta deal was found by Cheapflights users on 4/6. 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.
Fri 10/26:25 pm
OAJ
- MIA
1 stop6h 29m
Delta
Sat 10/108:05 am
MIA
- OAJ
1 stop5h 34m
Delta
Deal found 4/6![Delta logo]()
$267
This Delta deal was found by Cheapflights users on 4/7. 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 4/222:20 pm
OAJ
- MIA
1 stop4h 15m
Delta
Sat 4/256:00 am
MIA
- OAJ
1 stop5h 18m
Delta
Deal found 4/7![Delta logo]()
$287
This American Airlines deal was found by Cheapflights users on 4/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/234:17 pm
OAJ
- MIA
1 stop6h 34m
American Airlines
Mon 4/276:54 am
MIA
- OAJ
1 stop6h 07m
American Airlines
Deal found 4/9![American Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 4/6. 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.
Thu 4/166:49 pm
OAJ
- MIA
1 stop6h 05m
Delta
Mon 4/208:05 am
MIA
- OAJ
1 stop5h 35m
Delta
Deal found 4/6![Delta logo]()
$322
This Delta deal was found by Cheapflights users on 4/10. 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.
Thu 4/2312:05 pm
OAJ
- MIA
1 stop5h 03m
Delta
Mon 4/276:00 am
MIA
- OAJ
1 stop5h 18m
Delta
Deal found 4/10![Delta logo]()
$332
This Delta deal was found by Cheapflights users on 4/7. 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 4/176:49 pm
OAJ
- MIA
1 stop6h 05m
Delta
Tue 4/216:00 am
MIA
- OAJ
1 stop5h 18m
Delta
Deal found 4/7![Delta logo]()
$342
This American Airlines deal was found by Cheapflights users on 4/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:55 am
OAJ
- MIA
1 stop6h 00m
American Airlines
Mon 5/46:55 pm
MIA
- OAJ
1 stop5h 02m
American Airlines
Deal found 4/5![American Airlines logo]()
$383
This American Airlines deal was found by Cheapflights users on 4/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/24:17 pm
OAJ
- MIA
1 stop6h 34m
American Airlines
Mon 5/46:55 pm
MIA
- OAJ
1 stop5h 02m
American Airlines
Deal found 4/10![American Airlines logo]()
$419
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 April 10, 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 April 10, 2026.
This Delta deal was found by Cheapflights users on 4/6. 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.
Sat 10/34:00 pm
OAJ
- MIA
1 stop6h 48m
Delta
Sat 10/106:00 am
MIA
- OAJ
1 stop5h 12m
Delta
Deal found 4/6![Delta logo]()
$267
This American Airlines deal was found by Cheapflights users on 4/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/234:17 pm
OAJ
- MIA
1 stop6h 34m
American Airlines
Mon 4/276:54 am
MIA
- OAJ
1 stop6h 07m
American Airlines
Deal found 4/9![American Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 4/6. 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.
Fri 10/26:25 pm
OAJ
- MIA
1 stop6h 29m
Delta
Sat 10/108:05 am
MIA
- OAJ
1 stop5h 34m
Delta
Deal found 4/6![Delta logo]()
$267
This Delta deal was found by Cheapflights users on 4/7. 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 4/222:20 pm
OAJ
- MIA
1 stop4h 15m
Delta
Sat 4/256:00 am
MIA
- OAJ
1 stop5h 18m
Delta
Deal found 4/7![Delta logo]()
$287
This Delta deal was found by Cheapflights users on 4/7. 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 8/146:25 pm
OAJ
- MIA
1 stop6h 29m
Delta
Tue 8/186:00 am
MIA
- OAJ
1 stop5h 15m
Delta
Deal found 4/7![Delta logo]()
$287
This American Airlines deal was found by Cheapflights users on 4/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/24:17 pm
OAJ
- MIA
1 stop6h 34m
American Airlines
Mon 5/46:55 pm
MIA
- OAJ
1 stop5h 02m
American Airlines
Deal found 4/10![American Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 4/10. 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.
Thu 4/2312:05 pm
OAJ
- MIA
1 stop5h 03m
Delta
Mon 4/276:00 am
MIA
- OAJ
1 stop5h 18m
Delta
Deal found 4/10![Delta logo]()
$332
This American Airlines deal was found by Cheapflights users on 4/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/223:07 pm
OAJ
- MIA
1 stop4h 56m
American Airlines
Fri 5/295:18 pm
MIA
- OAJ
1 stop4h 57m
American Airlines
Deal found 4/7![American Airlines logo]()
$516
This American Airlines deal was found by Cheapflights users on 4/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:23 pm
OAJ
- MIA
1 stop6h 09m
American Airlines
Sat 10/108:30 am
MIA
- OAJ
2 stops5h 49m
American Airlines
Deal found 4/6![American Airlines logo]()
$718
This American Airlines deal was found by Cheapflights users on 4/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:27 pm
OAJ
- MIA
1 stop7h 20m
American Airlines
Sat 4/258:35 am
MIA
- OAJ
2 stops7h 14m
American Airlines
Deal found 4/6![American Airlines logo]()
$733
Last-minute flights from Jacksonville to Key LargoDiscover last-minute flight deals from Jacksonville to Key Largo. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from Jacksonville to Key Largo. Data last updated April 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/6. 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.
Thu 4/166:49 pm
OAJ
- MIA
1 stop6h 05m
Delta
Mon 4/208:05 am
MIA
- OAJ
1 stop5h 35m
Delta
Deal found 4/6![Delta logo]()
$322
This Delta deal was found by Cheapflights users on 4/7. 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 4/176:49 pm
OAJ
- MIA
1 stop6h 05m
Delta
Tue 4/216:00 am
MIA
- OAJ
1 stop5h 18m
Delta
Deal found 4/7![Delta logo]()
$342
This Delta deal was found by Cheapflights users on 4/7. 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 4/222:20 pm
OAJ
- MIA
1 stop4h 15m
Delta
Sat 4/256:00 am
MIA
- OAJ
1 stop5h 18m
Delta
Deal found 4/7![Delta logo]()
$287
This American Airlines deal was found by Cheapflights users on 4/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/234:17 pm
OAJ
- MIA
1 stop6h 34m
American Airlines
Mon 4/276:54 am
MIA
- OAJ
1 stop6h 07m
American Airlines
Deal found 4/9![American Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 4/10. 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.
Thu 4/2312:05 pm
OAJ
- MIA
1 stop5h 03m
Delta
Mon 4/276:00 am
MIA
- OAJ
1 stop5h 18m
Delta
Deal found 4/10![Delta logo]()
$332
This American Airlines deal was found by Cheapflights users on 4/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/264:17 pm
OAJ
- MIA
1 stop6h 34m
American Airlines
Mon 4/277:45 am
MIA
- OAJ
1 stop5h 16m
American Airlines
Deal found 4/8![American Airlines logo]()
$457
This American Airlines deal was found by Cheapflights users on 4/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:55 am
OAJ
- MIA
1 stop4h 16m
American Airlines
Mon 5/46:55 pm
MIA
- OAJ
1 stop5h 02m
American Airlines
Deal found 4/8![American Airlines logo]()
$407
This American Airlines deal was found by Cheapflights users on 4/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/281:14 pm
OAJ
- MIA
1 stop6h 49m
American Airlines
Thu 6/115:18 pm
MIA
- OAJ
1 stop6h 38m
American Airlines
Deal found 4/10![American Airlines logo]()
$337
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 April 10, 2026.
Search for one-way flight options from Jacksonville to Key Largo. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
This Delta deal was found by Cheapflights users on 4/9. 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.
Mon 6/226:44 pm
OAJ
- MIA
1 stop4h 57m
Delta
Deal found 4/9![Delta logo]()
$179
This Delta deal was found by Cheapflights users on 4/9. 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.
Mon 5/42:20 pm
OAJ
- MIA
1 stop4h 15m
Delta
Deal found 4/9![Delta logo]()
$199
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 April 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $267 (Delta) |
One-way from | $179 (Delta) |
Popular in | March |
Cheapest in | April |
Average price | $226 |
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 April 10, 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
OAJ - MIA
OAJMIA
Jacksonville Albert J Ellis
Sat 10/3
4:00 pm-10:48 pm
1 stop6h 48m
Miami
Sat 10/10
6:00 am-11:12 am
1 stop5h 12m
$267
JacksonvilleMiami
OAJ - MIA
OAJMIA
Jacksonville Albert J Ellis
Fri 10/2
6:25 pm-12:54 am
1 stop6h 29m
Miami
Sat 10/10
8:05 am-1:39 pm
1 stop5h 34m
$267
Quickest round-trip
JacksonvilleMiami
OAJ - MIA
OAJMIA
Jacksonville Albert J Ellis
Wed 4/22
2:20 pm-6:35 pm
1 stop4h 15m
Miami
Sat 4/25
6:00 am-11:18 am
1 stop5h 18m
$287
JacksonvilleMiami
OAJ - MIA
OAJMIA
Jacksonville Albert J Ellis
Fri 8/14
6:25 pm-12:54 am
1 stop6h 29m
Miami
Tue 8/18
6:00 am-11:15 am
1 stop5h 15m
$287
JacksonvilleMiami
OAJ - MIA
OAJMIA
Jacksonville Albert J Ellis
Thu 4/23
4:17 pm-10:51 pm
1 stop6h 34m
Miami
Mon 4/27
6:54 am-1:01 pm
1 stop6h 07m
$313
JacksonvilleMiami
OAJ - MIA
OAJMIA
Jacksonville Albert J Ellis
Thu 4/23
12:05 pm-5:08 pm
1 stop5h 03m
Miami
Mon 4/27
6:00 am-11:18 am
1 stop5h 18m
$332
JacksonvilleMiami
OAJ - MIA
OAJMIA
Jacksonville Albert J Ellis
Sat 5/2
4:17 pm-10:51 pm
1 stop6h 34m
Miami
Mon 5/4
6:55 pm-11:57 pm
1 stop5h 02m
$419
JacksonvilleMiami
OAJ - MIA
OAJMIA
Jacksonville Albert J Ellis
Fri 5/22
3:07 pm-8:03 pm
1 stop4h 56m
Miami
Fri 5/29
5:18 pm-10:15 pm
1 stop4h 57m
$516
JacksonvilleMiami
OAJ - MIA
OAJMIA
Jacksonville Albert J Ellis
Sat 10/3
6:23 pm-12:32 am
1 stop6h 09m
Miami
Sat 10/10
8:30 am-2:19 pm
2 stops5h 49m
$718
JacksonvilleMiami
OAJ - MIA
OAJMIA
Jacksonville Albert J Ellis
Wed 4/22
1:27 pm-8:47 pm
1 stop7h 20m
Miami
Sat 4/25
8:35 am-3:49 pm
2 stops7h 14m
$733
Showing 1-10 of 12 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.
OAJ-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
OAJ-KE9
OAJ-MIA
What is the cheapest month to book a flight from Jacksonville, North Carolina to Key Largo?
Currently, January is the cheapest month in which you can book a flight from Jacksonville, North Carolina to Key Largo (average of $59). Flying from Jacksonville, North Carolina to Key Largo in September is currently the most expensive (average of $189). 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.
How much does it cost to fly round-trip from Jacksonville, North Carolina 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 April 10, 2026.
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.
Food
7.2
Overall
7.9
Comfort
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Overall
7.9
Comfort
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Overall
7.9
Comfort
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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
Complete your trip to Key Largo by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Jacksonville to Key Largo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Jacksonville and Key Largo flights
Browse other Jacksonville and Key Largo flight options. Last updated on April 10, 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 April 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Jacksonville to Key Largo flights
Consider these flights traveling from Jacksonville to Key Largo.
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 April 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$206 | Average$355 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$226 | Average$311 | FlexibilityNo cancel fee | On-time71% |