HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key Largo

$106+ 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
ACY — MIA
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Atlantic City 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.

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 14, 2025.

This Mytrip deal was found by Cheapflights users on 12/12. 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
Sun 12/289:59 pmMIA - ACY
2 stops23h 23mMultiple Airlines
Deal found 12/12$406
This Expedia deal was found by Cheapflights users on 12/13. 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
Tue 12/308:00 amMIA - ACY
2 stops14h 19mSpirit Airlines
Deal found 12/13$415
This Mytrip deal was found by Cheapflights users on 12/12. 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 12/305:10 amACY - MIA
2 stops15h 54mSpirit Airlines
Sun 1/49:59 pmMIA - ACY
2 stops23h 23mSpirit Airlines
Deal found 12/12$421
This Mytrip deal was found by Cheapflights users on 12/12. 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 12/225:10 amACY - MIA
2 stops15h 54mSpirit Airlines
Sun 12/289:59 pmMIA - ACY
2 stops23h 23mSpirit Airlines
Deal found 12/12$437
This Mytrip deal was found by Cheapflights users on 12/12. 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 12/233:20 pmACY - MIA
2 stops21h 46mMultiple Airlines
Sun 12/289:59 pmMIA - ACY
2 stops23h 23mMultiple Airlines
Deal found 12/12$440

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 14, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$187
(Expedia)

One-way from

$106
(Kiwi.com)

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 14, 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

Fri 1/9

8:20 pm-12:56 pm

2 stops16h 36m

Miami

Sat 1/17

7:00 am-11:53 pm

2 stops16h 53m

$204

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Thu 1/8

10:40 am-11:14 pm

2 stops12h 34m

Miami

Thu 1/15

7:00 am-11:53 pm

2 stops16h 53m

$216

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Thu 1/22

1:07 pm-11:56 am

2 stops22h 49m

Miami

Sun 1/25

7:00 am-9:43 am

2 stops26h 43m

$217

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Thu 2/5

6:00 am-8:13 pm

2 stops14h 13m

Miami

Tue 2/10

7:00 am-11:53 pm

2 stops16h 53m

$219

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Wed 1/21

8:20 pm-12:56 pm

2 stops16h 36m

Miami

Sun 1/25

7:00 am-9:43 am

2 stops26h 43m

$220

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Mon 1/12

6:00 am-8:13 pm

2 stops14h 13m

Miami

Fri 1/16

10:06 am-11:24 pm

2 stops13h 18m

$228

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Thu 1/8

1:07 pm-11:56 am

2 stops22h 49m

Miami

Sun 1/11

10:06 am-9:43 am

2 stops23h 37m

$231

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Sun 2/1

1:07 pm-11:56 am

2 stops22h 49m

Miami

Mon 2/2

8:51 pm-11:53 pm

2 stops27h 02m

$232

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Fri 1/9

8:20 pm-12:56 pm

2 stops16h 36m

Miami

Sun 1/18

5:54 am-11:24 pm

2 stops17h 30m

$247

Atlantic CityMiami

ACY - MIA

ACYMIA

Atlantic City

Fri 1/23

10:40 am-10:59 am

2 stops24h 19m

$106

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 16 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 14, 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 14, 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
11,051 reviews

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Overall

7.2

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
11,051 reviews
American Airlines
7.2
Good
11,051 reviews

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Overall

7.2

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
8,183 reviews
American Airlines
7.2
Good
11,051 reviews

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Overall

7.2

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
3,081 reviews
American Airlines
7.2
Good
11,051 reviews

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Overall

7.2

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 $204, 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 $204.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Atlantic City to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Miami flights
Newark to Miami flights
Newark to Fort Lauderdale flights
LaGuardia to Miami flights
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to Fort Lauderdale flights
John F Kennedy Intl to Orlando flights
Newark to West Palm Beach flights
Newark to Orlando flights
John F Kennedy Intl to West Palm Beach flights
John F Kennedy Intl to Tampa flights
LaGuardia to Orlando flights
LaGuardia to West Palm Beach flights
Philadelphia to Orlando flights
Newark to Tampa flights
LaGuardia to Tampa flights
Philadelphia to Miami flights
Philadelphia to Fort Lauderdale flights
Newark to Fort Myers flights
John F Kennedy Intl to Fort Myers flights
LaGuardia to Fort Myers flights
Atlantic City to Fort Lauderdale flights
John F Kennedy Intl to Sarasota flights
Philadelphia to Tampa flights
Newark to Sarasota flights
Newark to Jacksonville flights
Newark to Key West flights
Philadelphia to West Palm Beach flights
Atlantic City to Orlando flights
John F Kennedy Intl to Jacksonville flights
LaGuardia to Jacksonville flights
LaGuardia to Sarasota flights
Atlantic City to West Palm Beach flights
Atlantic City to Tampa flights
LaGuardia to Key West flights
John F Kennedy Intl to Key West flights
Philadelphia to Fort Myers flights
Trenton to Orlando flights
Philadelphia to Key West flights
Philadelphia to Jacksonville flights
John F Kennedy Intl to Daytona Beach flights
Newark to St Petersburg flights
Newark to Orlando Sanford Intl flights
Philadelphia to Sarasota flights
Atlantic City to Fort Myers flights
Newark to Daytona Beach flights
LaGuardia to Pensacola flights
Trenton to Tampa flights
Trenton to Fort Lauderdale flights
John F Kennedy Intl to Panama City flights

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 14, 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%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.