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Key Largo

$100+ Cheap flights from Atlantic City (ACY) 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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
ACY — MIA
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
1 adult, Economy
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Cheap flight deals from Atlantic City to Key Largo

Cheapest flights from Atlantic City to Key Largo
Explore the most affordable flight options available from Atlantic City to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2026.

This CheapOair deal was found by Cheapflights users on 3/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:37 pm
ACY
-
MIA
2 stops27h 52m
Spirit Airlines
Sat 5/168:00 am
MIA
-
ACY
2 stops15h 38m
Spirit Airlines
Deal found 3/18$196
This Mytrip deal was found by Cheapflights users on 3/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:30 am
ACY
-
MIA
2 stops16h 01m
Spirit Airlines
Fri 4/2412:53 pm
MIA
-
ACY
2 stops10h 34m
Spirit Airlines
Deal found 3/19$201
This CheapOair deal was found by Cheapflights users on 3/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:30 am
ACY
-
MIA
2 stops26h 25m
Spirit Airlines
Mon 4/203:54 pm
MIA
-
ACY
2 stops26h 38m
Spirit Airlines
Deal found 3/16$206
This CheapOair deal was found by Cheapflights users on 3/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:10 am
ACY
-
MIA
2 stops27h 07m
Spirit Airlines
Sat 4/188:00 am
MIA
-
ACY
2 stops10h 32m
Spirit Airlines
Deal found 3/16$209
This Mytrip deal was found by Cheapflights users on 3/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:10 am
ACY
-
MIA
2 stops12h 57m
Spirit Airlines
Mon 4/203:54 pm
MIA
-
ACY
2 stops26h 38m
Spirit Airlines
Deal found 3/17$210
This CheapOair deal was found by Cheapflights users on 3/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:37 pm
ACY
-
MIA
2 stops17h 19m
Spirit Airlines
Mon 4/276:30 am
MIA
-
ACY
2 stops16h 57m
Spirit Airlines
Deal found 3/16$216
This CheapOair deal was found by Cheapflights users on 3/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:10 am
ACY
-
MIA
2 stops27h 07m
Spirit Airlines
Thu 4/1612:53 pm
MIA
-
ACY
2 stops10h 34m
Spirit Airlines
Deal found 3/17$220
This CheapOair deal was found by Cheapflights users on 3/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:37 pm
ACY
-
MIA
2 stops27h 52m
Spirit Airlines
Sun 5/179:34 am
MIA
-
ACY
2 stops8h 58m
Spirit Airlines
Deal found 3/17$225
This Mytrip deal was found by Cheapflights users on 3/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:37 pm
ACY
-
MIA
2 stops27h 52m
Spirit Airlines
Fri 5/86:11 pm
MIA
-
ACY
2 stops21h 20m
Spirit Airlines
Deal found 3/20$231

Find flight deals from Atlantic City to Key Largo

Keep the following information in mind while searching for Atlantic City to Key Largo flight deals. Data was last updated March 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$196
(CheapOair)

One-way from

$100
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$106
Provider with most accurate pricing for Philadelphia-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Miami flights.
Search Deals
From Atlantic City to Key Largo
Search Deals
One-way flight from Atlantic City to Key Largo
Search Deals
Highest demand for flights based on searches. 32% potential increase in price ($109 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Atlantic City 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 March 21, 2026.
Use the filters below to find and compare flights from Atlantic City to Key Largo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Fri 4/17

6:30 am-10:31 pm

3 stops16h 01m

Miami

Fri 4/24

12:53 pm-11:27 pm

2 stops10h 34m

$227

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Sat 4/18

7:37 pm-10:31 pm

2 stops26h 54m

Miami

Mon 4/20

3:54 pm-6:32 pm

2 stops26h 38m

$240

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Sat 4/11

7:10 am-10:17 am

2 stops27h 07m

Miami

Wed 4/15

5:49 pm-6:32 pm

3 stops24h 43m

$274

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Thu 4/23

7:37 pm-10:31 pm

2 stops26h 54m

Miami

Sun 4/26

6:30 am-11:27 pm

2 stops16h 57m

$321

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Sun 4/12

2:06 pm-8:44 pm

3 stops30h 38m

Miami

Wed 4/15

3:54 pm-6:32 pm

2 stops26h 38m

$344

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Tue 3/31

7:10 am-10:17 am

2 stops27h 07m

Miami

Tue 4/7

3:12 pm-12:26 am

2 stops9h 14m

$368

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Sat 6/13

4:33 pm-5:56 pm

2 stops25h 23m

Miami

Sat 6/20

6:20 pm-5:30 pm

1 stop23h 10m

$373
Cheapest one-way

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Sun 5/17

7:25 pm-1:20 pm

2 stops17h 55m

$100

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Sat 4/18

7:37 pm-10:31 pm

2 stops26h 54m

$107

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Sun 5/10

7:37 pm-10:47 pm

2 stops27h 10m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Atlantic City to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Atlantic City with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Atlantic City to Key Largo

What is the cheapest month to book a flight from Atlantic City to Key Largo?

Currently, March is the cheapest month in which you can book a flight from Atlantic City to Key Largo (average of $38). Flying from Atlantic City to Key Largo in June is currently the most expensive (average of $81). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ACY to KE9?

Find hourly flight availability from Atlantic City 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 March 21, 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 41% on flights from Atlantic City to Key Largo by exploring options for tickets at noon.

How much does it cost to fly round-trip from Atlantic City 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 March 21, 2026.
See what other customers who have flown with Allegiant Air,American Airlines, andSpirit Airlines from Atlantic City to Key Largo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Allegiant Air
7.3
Good
713 reviews

Overall

7.3

Boarding

7.6

Comfort

6.9

Food

5.9

Entertainment

5.5

Crew

8.1

Reviews

1 / 20
4.0
Okay

Michael,Feb 2026

PIE - IND

I appreciate the low cost but the seating is ridiculous. So packed it feels dangerous. Actually it was so bad today, I'm going to look for another airline next time I fly.
Allegiant Air
7.3
Good
713 reviews
Allegiant Air
7.3
Good
713 reviews

Overall

7.3

Boarding

7.6

Comfort

6.9

Food

5.9

Entertainment

5.5

Crew

8.1

Reviews

1 / 20
4.0
Okay

Michael,Feb 2026

PIE - IND

I appreciate the low cost but the seating is ridiculous. So packed it feels dangerous. Actually it was so bad today, I'm going to look for another airline next time I fly.
American Airlines
7.1
Good
11,487 reviews
Allegiant Air
7.3
Good
713 reviews

Overall

7.3

Boarding

7.6

Comfort

6.9

Food

5.9

Entertainment

5.5

Crew

8.1

Reviews

1 / 20
4.0
Okay

Michael,Feb 2026

PIE - IND

I appreciate the low cost but the seating is ridiculous. So packed it feels dangerous. Actually it was so bad today, I'm going to look for another airline next time I fly.
Spirit Airlines
6.3
Okay
8,535 reviews
Allegiant Air
7.3
Good
713 reviews

Overall

7.3

Boarding

7.6

Comfort

6.9

Food

5.9

Entertainment

5.5

Crew

8.1

Reviews

1 / 20
4.0
Okay

Michael,Feb 2026

PIE - IND

I appreciate the low cost but the seating is ridiculous. So packed it feels dangerous. Actually it was so bad today, I'm going to look for another airline next time I fly.
Frontier
5.7
Fair
3,024 reviews
Allegiant Air
7.3
Good
713 reviews

Overall

7.3

Boarding

7.6

Comfort

6.9

Food

5.9

Entertainment

5.5

Crew

8.1

Reviews

1 / 20
4.0
Okay

Michael,Feb 2026

PIE - IND

I appreciate the low cost but the seating is ridiculous. So packed it feels dangerous. Actually it was so bad today, I'm going to look for another airline next time I fly.

Related info for your journey

Find useful and relevant information for your journey from Atlantic City to Key Largo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Atlantic City to Key Largo?

    If you book a flight to Key Largo from Atlantic City, you will be flying from Atlantic City, which is the city’s only airport. Atlantic City (ACY) is located 10.5 mi from the center of Atlantic City. There are 0 flights from Atlantic City to Key Largo per day from 4 different airlines.

  • How popular is this Atlantic City to Key Largo flight route?

    This flight path from Atlantic City to Key Largo was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Atlantic City to Key Largo?

    For as low as $227, Spirit Airlines can have you in Key Largo from Atlantic City in 16h 01m. The distance from Atlantic City to Key Largo is about 999 mi.

  • What are the cheapest flights from Atlantic City to Key Largo?

    On average you can expect to pay $148 for a flight from Atlantic City to Key Largo. The cheapest flight overall is $146 while the most popular route, (Atlantic City - Miami) is currently priced at $196.

  • Can I find deals for flights from Atlantic City to Key Largo that include hotel bookings?

    Yes. In addition to deals on Atlantic City to Key Largo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Atlantic City to Key Largo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Atlantic City to Key Largo.

  • Can I find deals for business class flights from Atlantic City to Key Largo?

    Yes. Cheapflights offers flight deals from Atlantic City to Key Largo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Atlantic City to Key Largo?

    Currently, March is the cheapest month in which you can book a flight from Atlantic City to Key Largo (average of $38). Flying from Atlantic City to Key Largo in June is currently the most expensive (average of $81). 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.

See more FAQs

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Top 4 airlines flying from Atlantic City to Key Largo

Discover the top 4 airlines that operate flights from Atlantic City 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 March 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$38Average$105FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$69Average$179FlexibilityNo cancel feeOn-time65%
FrontierCheapest$77Average$163FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$206Average$334FlexibilityNo cancel feeOn-time71%

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