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Key Largo

$96+ 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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
ACY — MIA
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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 December 18, 2025.

This Mytrip deal was found by Cheapflights users on 12/17. 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.
Sun 12/2112:17 pmACY - MIA
2 stops24h 29mMultiple Airlines
Mon 12/299:59 pmMIA - ACY
2 stops12h 58mMultiple Airlines
Deal found 12/17$477
This Mytrip deal was found by Cheapflights users on 12/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:10 amACY - MIA
2 stops17h 11mSpirit Airlines
Sun 1/49:59 pmMIA - ACY
2 stops23h 23mSpirit Airlines
Deal found 12/16$508
This Mytrip deal was found by Cheapflights users on 12/17. 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.
Wed 12/315:10 amACY - MIA
2 stops28h 25mSpirit Airlines
Thu 1/19:59 pmMIA - ACY
2 stops23h 23mSpirit Airlines
Deal found 12/17$518
This Expedia deal was found by Cheapflights users on 12/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:10 amACY - MIA
2 stops15h 54mSpirit Airlines
Thu 12/257:00 amMIA - ACY
2 stops13h 42mSpirit Airlines
Deal found 12/17$569
This Mytrip deal was found by Cheapflights users on 12/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:17 pmACY - MIA
2 stops24h 49mMultiple Airlines
Mon 12/225:54 pmMIA - ACY
2 stops20h 36mMultiple Airlines
Deal found 12/16$577
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:10 amACY - MIA
2 stops15h 54mSpirit Airlines
Sat 12/278:00 amMIA - ACY
2 stops14h 19mSpirit Airlines
Deal found 12/16$585
This Mytrip deal was found by Cheapflights users on 12/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:49 pmACY - MIA
3 stops27h 15mMultiple Airlines
Mon 12/299:59 pmMIA - ACY
2 stops12h 58mMultiple Airlines
Deal found 12/16$600
This Expedia deal was found by Cheapflights users on 12/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:10 amACY - MIA
2 stops15h 54mSpirit Airlines
Wed 12/317:00 amMIA - ACY
2 stops13h 42mSpirit Airlines
Deal found 12/17$602

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 December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$177
(Expedia)

One-way from

$96
(Expedia)

Popular in

December

Cheapest in

August

Average price

$446
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. 15% potential increase in price ($47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 18, 2025.
Use the filters below to find and compare flights from Atlantic City to Key Largo that are best for you.

Fly from

Atlantic City

Fly to

Key Largo

Route

Depart

Return

Price

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Sun 1/11

8:20 pm-12:56 pm

2 stops16h 36m

Miami

Tue 1/13

7:00 am-11:53 pm

2 stops16h 53m

$177

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Mon 1/12

6:15 am-11:59 pm

2 stops17h 44m

Miami

Wed 1/14

7:00 am-11:53 pm

2 stops16h 53m

$190

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Tue 1/13

10:40 am-11:56 am

3 stops25h 16m

Miami

Tue 1/20

7:00 am-11:53 pm

2 stops16h 53m

$196

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Fri 1/9

8:20 pm-12:56 pm

2 stops16h 36m

Miami

Wed 1/14

7:00 am-11:53 pm

2 stops16h 53m

$204

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Thu 1/15

6:15 am-11:14 pm

2 stops16h 59m

Miami

Thu 1/22

7:00 am-11:53 pm

2 stops16h 53m

$205

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Sun 1/11

8:20 pm-7:46 pm

3 stops23h 26m

Miami

Sat 1/17

7:00 am-11:53 pm

2 stops16h 53m

$207

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Thu 1/29

1:07 pm-11:56 am

2 stops22h 49m

Miami

Mon 2/2

7:00 am-9:43 am

3 stops26h 43m

$209

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Thu 1/8

10:40 am-11:14 pm

2 stops12h 34m

Miami

Mon 1/12

7:00 am-11:53 pm

2 stops16h 53m

$216

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Thu 2/5

6:00 am-10:31 am

2 stops28h 31m

Miami

Mon 2/9

7:00 am-9:43 am

2 stops26h 43m

$223

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Thu 1/29

2:16 pm-12:56 pm

3 stops22h 40m

Miami

Mon 2/2

7:00 am-9:43 am

2 stops26h 43m

$228

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 17 results
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, December is the cheapest month in which you can book a flight from Atlantic City to Key Largo (average of $21). Flying from Atlantic City to Key Largo in June is currently the most expensive (average of $75). 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 December 18, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 52% on flights from Atlantic City to Key Largo by exploring options for tickets in the evening.

What is the cheapest day to fly from Atlantic City to Key Largo?

Use this chart to determine the cheapest time to fly round-trip from Atlantic City to Key Largo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Atlantic City to Key Largo flight should consider departing on Wednesday evenings when fares are most often at their lowest. Wednesday 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 December 18, 2025.
See what other customers who have flown with American Airlines, Spirit Airlines, and Frontier 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.
American Airlines
7.2
Good
11,054 reviews

Overall

7.2

Boarding

7.5

Crew

8.0

Comfort

7.2

Food

6.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
American Airlines
7.2
Good
11,054 reviews
American Airlines
7.2
Good
11,054 reviews

Overall

7.2

Boarding

7.5

Crew

8.0

Comfort

7.2

Food

6.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
Spirit Airlines
6.3
Okay
8,189 reviews
American Airlines
7.2
Good
11,054 reviews

Overall

7.2

Boarding

7.5

Crew

8.0

Comfort

7.2

Food

6.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
Frontier
5.8
Fair
3,080 reviews
American Airlines
7.2
Good
11,054 reviews

Overall

7.2

Boarding

7.5

Crew

8.0

Comfort

7.2

Food

6.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

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 $177, Spirit Airlines can have you in Key Largo from Atlantic City in 16h 36m. 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 $177.

  • 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, December is the cheapest month in which you can book a flight from Atlantic City to Key Largo (average of $21). Flying from Atlantic City to Key Largo in June is currently the most expensive (average of $75). 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$154FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$77Average$107FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$87Average$186FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$139Average$409FlexibilityNo cancel feeOn-time71%

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