$313+ Cheap flights from Jacksonville, NC (OAJ) to Key Largo, FL
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
OAJ — MIA
Oct 7 — Oct 141
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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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 September 7, 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 September 7, 2026.
This American Airlines deal was found by Cheapflights users on 9/3. 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.
Wed 11/47:11 pm -
1 stop5h 18m
Sun 11/86:00 am -
1 stop6h 45m
Deal found 9/3![American Airlines logo]()
$342
This Delta deal was found by Cheapflights users on 9/6. 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.
Wed 10/212:21 pm -
1 stop7h 00m
Mon 10/266:04 am -
1 stop5h 05m
Deal found 9/6![Delta logo]()
$362
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 11/121:14 pm -
1 stop5h 26m
Sun 11/226:00 am -
1 stop6h 49m
Deal found 9/7![American Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 9/7. 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.
Mon 11/2311:56 am -
1 stop5h 24m
Sat 11/286:00 am -
1 stop5h 16m
Deal found 9/7![Delta logo]()
$382
This Delta deal was found by Cheapflights users on 9/7. 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.
Sun 12/136:37 pm -
1 stop6h 20m
Sun 12/2011:30 am -
1 stop6h 34m
Deal found 9/7![Delta logo]()
$387
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:20 pm -
1 stop4h 39m
Sat 10/38:52 am -
1 stop4h 35m
Deal found 9/4![American Airlines logo]()
$403
This American Airlines deal was found by Cheapflights users on 9/7. 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 10/98:19 pm -
1 stop4h 33m
Tue 10/137:40 am -
1 stop5h 44m
Deal found 9/7![American Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 9/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:34 pm -
1 stop6h 21m
Sat 10/36:00 am -
1 stop5h 15m
Deal found 9/4![Delta logo]()
$450
This Delta deal was found by Cheapflights users on 9/6. 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 9/1112:00 pm -
1 stop5h 19m
Tue 9/154:35 pm -
1 stop5h 47m
Deal found 9/6![Delta logo]()
$455
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:20 pm -
1 stop4h 39m
Sun 10/46:12 am -
1 stop6h 04m
Deal found 9/4![American Airlines logo]()
$465
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/116:06 am -
1 stop5h 10m
Mon 9/148:15 am -
1 stop5h 12m
Deal found 9/3![American Airlines logo]()
$467
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Thu 9/171:52 pm -
1 stop6h 47m
Tue 9/228:52 am -
1 stop4h 35m
Deal found 9/6![American Airlines logo]()
$477
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 September 7, 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 September 7, 2026.
This American Airlines deal was found by Cheapflights users on 9/5. 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 11/47:11 pm -
1 stop5h 18m
Sun 11/86:00 am -
1 stop6h 45m
Deal found 9/5![American Airlines logo]()
$342
This Delta deal was found by Cheapflights users on 9/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:21 pm -
1 stop7h 00m
Mon 10/266:04 am -
1 stop5h 05m
Deal found 9/3![Delta logo]()
$342
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 11/121:14 pm -
1 stop5h 26m
Sun 11/226:00 am -
1 stop6h 49m
Deal found 9/7![American Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 9/7. 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.
Mon 11/2311:56 am -
1 stop5h 24m
Sat 11/286:00 am -
1 stop5h 16m
Deal found 9/7![Delta logo]()
$382
This Delta deal was found by Cheapflights users on 9/7. 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.
Sun 12/136:37 pm -
1 stop6h 20m
Sun 12/2011:30 am -
1 stop6h 34m
Deal found 9/7![Delta logo]()
$387
This Delta deal was found by Cheapflights users on 9/6. 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 1/2311:58 am -
1 stop6h 51m
Sun 1/318:05 am -
1 stop5h 34m
Deal found 9/6![Delta logo]()
$397
This Delta deal was found by Cheapflights users on 9/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:34 pm -
1 stop6h 21m
Sat 10/36:00 am -
1 stop5h 15m
Deal found 9/4![Delta logo]()
$450
This Delta deal was found by Cheapflights users on 9/6. 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 9/172:26 pm -
1 stop6h 44m
Tue 9/226:00 am -
1 stop5h 15m
Deal found 9/6![Delta logo]()
$455
Last-minute flights from Jacksonville to Key LargoDiscover last-minute flight deals from Jacksonville to Key Largo. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Jacksonville to Key Largo. Data last updated September 7, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/6. 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 9/1112:00 pm -
1 stop5h 19m
Tue 9/154:35 pm -
1 stop5h 47m
Deal found 9/6![Delta logo]()
$455
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/116:06 am -
1 stop5h 10m
Mon 9/148:15 am -
1 stop5h 12m
Deal found 9/3![American Airlines logo]()
$467
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Thu 9/171:52 pm -
1 stop6h 47m
Tue 9/228:52 am -
1 stop4h 35m
Deal found 9/6![American Airlines logo]()
$477
This Delta deal was found by Cheapflights users on 9/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:34 pm -
1 stop6h 21m
Sat 10/36:00 am -
1 stop5h 15m
Deal found 9/4![Delta logo]()
$450
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:18 pm -
1 stop4h 33m
Sun 10/48:15 am -
1 stop6h 09m
Deal found 9/4![American Airlines logo]()
$492
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:20 pm -
1 stop4h 39m
Sat 10/38:52 am -
1 stop4h 35m
Deal found 9/4![American Airlines logo]()
$403
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:20 pm -
1 stop4h 39m
Sun 10/46:12 am -
1 stop6h 04m
Deal found 9/4![American Airlines logo]()
$465
This Delta deal was found by Cheapflights users on 9/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:15 pm -
1 stop4h 54m
Sat 10/37:06 am -
2 stops15h 16m
Deal found 9/4![Delta logo]()
$579
This American Airlines deal was found by Cheapflights users on 9/7. 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 10/98:19 pm -
1 stop4h 33m
Wed 10/145:32 pm -
1 stop4h 38m
Deal found 9/7![American Airlines logo]()
$342
This American Airlines deal was found by Cheapflights users on 9/7. 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 10/98:19 pm -
1 stop4h 33m
Tue 10/137:40 am -
1 stop5h 44m
Deal found 9/7![American Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 9/7. 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 10/212:21 pm -
1 stop7h 00m
Mon 10/266:04 am -
1 stop5h 05m
Deal found 9/7![Delta logo]()
$362
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 September 7, 2026.
Search for one-way flight options from Jacksonville to Key Largo. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Delta deal was found by Cheapflights users on 9/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:56 am -
1 stop5h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$313
This Delta deal was found by Cheapflights users on 9/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:34 pm -
1 stop6h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Delta logo]()
$383
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Fri 2/267:55 pm -
2 stops11h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$433
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $317 (American Airlines) |
One-way from | $313 (Delta) |
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 7,457,451 searches. Data last updated September 7, 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 Jacksonville Albert J Ellis - MIA Miami
OAJMIA
Jacksonville Albert J Ellis
Fri 2/26
4:10 pm-10:54 pm
1 stop6h 44m
Miami
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$313
Quickest round-trip
JacksonvilleMiami
OAJ Jacksonville Albert J Ellis - MIA Miami
OAJMIA
Jacksonville Albert J Ellis
Mon 11/9
11:56 am-5:20 pm
1 stop5h 24m
Miami
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$313
JacksonvilleMiami
OAJ Jacksonville Albert J Ellis - MIA Miami
OAJMIA
Jacksonville Albert J Ellis
Wed 11/4
7:11 pm-12:29 am
1 stop5h 18m
Miami
Sun 11/8
6:00 am-12:45 pm
1 stop6h 45m
$342
JacksonvilleMiami
OAJ Jacksonville Albert J Ellis - MIA Miami
OAJMIA
Jacksonville Albert J Ellis
Wed 10/21
2:21 pm-9:21 pm
1 stop7h 00m
Miami
Mon 10/26
6:04 am-11:09 am
1 stop5h 05m
$342
JacksonvilleMiami
OAJ Jacksonville Albert J Ellis - MIA Miami
OAJMIA
Jacksonville Albert J Ellis
Thu 11/12
1:14 pm-6:40 pm
1 stop5h 26m
Miami
Sun 11/22
6:00 am-12:49 pm
1 stop6h 49m
$367
JacksonvilleMiami
OAJ Jacksonville Albert J Ellis - MIA Miami
OAJMIA
Jacksonville Albert J Ellis
Mon 11/23
11:56 am-5:20 pm
1 stop5h 24m
Miami
Sat 11/28
6:00 am-11:16 am
1 stop5h 16m
$382
JacksonvilleMiami
OAJ Jacksonville Albert J Ellis - MIA Miami
OAJMIA
Jacksonville Albert J Ellis
Mon 9/21
6:34 pm-12:55 am
1 stop6h 21m
Miami
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$383
JacksonvilleMiami
OAJ Jacksonville Albert J Ellis - MIA Miami
OAJMIA
Jacksonville Albert J Ellis
Sun 12/13
6:37 pm-12:57 am
1 stop6h 20m
Miami
Sun 12/20
11:30 am-6:04 pm
1 stop6h 34m
$387
JacksonvilleMiami
OAJ Jacksonville Albert J Ellis - MIA Miami
OAJMIA
Jacksonville Albert J Ellis
Sat 1/23
11:58 am-6:49 pm
1 stop6h 51m
Miami
Sun 1/31
8:05 am-1:39 pm
1 stop5h 34m
$397
JacksonvilleMiami
OAJ Jacksonville Albert J Ellis - MIA Miami
OAJMIA
Jacksonville Albert J Ellis
Fri 9/25
6:34 pm-12:55 am
1 stop6h 21m
Miami
Sat 10/3
6:00 am-11:15 am
1 stop5h 15m
$450
Showing 1-10 of 11 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
No data available for this route at this time. Please check back soon.
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 September 7, 2026.
Peruse reviews from past customers who have flown with Delta 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.
Entertainment
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Entertainment
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
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
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Jacksonville and Key Largo flights
Browse other Jacksonville and Key Largo flight options. Last updated on September 7, 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 September 7, 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 airline flying from Jacksonville to Key Largo
Discover the top airline 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 7,457,451 searches. Data last updated September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$206 | Average$357 | FlexibilityNo cancel fee | On-timeN/A |