How popular is this Atlanta to Key Largo flight route?

This flight path from Atlanta Hartsfield-Jackson to Key Largo was viewed by 402 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the cheapest airlines to fly from Atlanta to Key Largo one-way?

For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $55. Users have also found prices from $56 and $90 on Frontier and Southwest, respectively.

In terms of precipitation, rainfall in Key Largo ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Key Largo when rainfall is around 1.6 in.

If weather is an important factor for your trip to Key Largo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

What are the cheapest flights from Atlanta to Key Largo?

Looking at all options, your cheapest flight can be booked for $56. While the most popular route (Atlanta Hartsfield-Jackson - Miami) can be booked for $49 on average our data indicates $653 when flying from Atlanta to Key Largo.

What are the most reliable airlines from Atlanta to Key Largo?

No one likes to see their flight delayed. When booking a flight from Atlanta to Key Largo consider choosing Envoy Air (95%), American Airlines (68%) or Iberia (63%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Atlanta to Key Largo?

When booking a flight from Atlanta to Key Largo, you may want to consider flying on American Airlines, Delta or Frontier as they are the most popular for this route.

How far in advance should I book a flight from Atlanta to Key Largo?

Find a great deal and save up to 54% by booking at least 31 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Atlanta to Key Largo within the next two weeks, with the cheapest ticket starting at $140.

What is the cheapest month to fly from Atlanta to Key Largo?

September is one of the best times of the year to fly to Key Largo from Atlanta. Prices for September average $184 per person but you can even find prices for as low as $50. The most expensive prices can be found in the month of December. Opting for a September flight can save you 18% on your journey compared to booking in December

What airport do you fly from for flights from Atlanta to Key Largo?

For a flight from Atlanta to Key Largo, you will be flying from Hartsfield-Jackson. Atlanta Hartsfield-Jackson (ATL) is just 8.2 mi from the center of the city. Hartsfield-Jackson is the only Atlanta airport and it handles 65 outbound flights to Key Largo per day. 5 airlines have flights to Key Largo from Atlanta Hartsfield-Jackson on a regular basis.

Can I find deals for flights from Atlanta to Key Largo that include hotel bookings?

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

How can I find direct flights from Atlanta to Key Largo?

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

Can I find deals for business class flights from Atlanta to Key Largo?

Yes. Cheapflights offers flight deals from Atlanta 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.

$55+ Flights from Atlanta to Key Largo

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Atlanta 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.

Cheapflights Tip: The best prices from Atlanta Hartsfield-Jackson to Key Largo are usually found in September or October, booked 30 days in advance, depart on a Sunday or Friday and return on a Saturday

Cheap flight deals from Atlanta to Key Largo

Round-trip from	$95 (Frontier)
One-way from	$55 (FlightHub)
Popular in	December
Cheapest in	September
Average price	$185

From Atlanta Hartsfield-Jackson to Key Largo

Search Deals

One-way flight from Atlanta Hartsfield-Jackson to Key Largo

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($11 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Atlanta to Key Largo

Cheapest flights from Atlanta to Key Largo
Explore the most affordable flight options available from Atlanta to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Fri 9/196:30 amATL - MIA

Nonstop1h 59mFrontier

Mon 9/226:59 pmMIA - ATL

Nonstop2h 19mFrontier

Deal found 7/28

$95

Fri 11/149:30 amATL - MIA

Nonstop2h 00mSpirit Airlines

Fri 11/217:12 pmMIA - ATL

Nonstop2h 03mSpirit Airlines

Deal found 7/29

$96

Sat 9/203:42 pmATL - MIA

Nonstop2h 00mMultiple Airlines

Sun 9/215:30 amMIA - ATL

Nonstop2h 12mMultiple Airlines

Deal found 7/28

$98

Best flights from Atlanta to Key Largo
Discover carefully curated flight deals from Atlanta to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Fri 9/196:30 amATL - MIA

Nonstop1h 59mFrontier

Mon 9/226:59 pmMIA - ATL

Nonstop2h 19mFrontier

Deal found 7/28

$95

Fri 11/149:30 amATL - MIA

Nonstop2h 00mSpirit Airlines

Sun 11/235:56 pmMIA - ATL

Nonstop2h 03mSpirit Airlines

Deal found 7/29

$96

Sat 9/203:42 pmATL - MIA

Nonstop2h 00mMultiple Airlines

Sun 9/215:30 amMIA - ATL

Nonstop2h 12mMultiple Airlines

Deal found 7/28

$98

Last-minute flights from Atlanta to Key Largo
Discover last-minute flight deals from Atlanta to Key Largo. Data last updated July 29, 2025 and is based on user searches.

Mon 8/42:03 pmATL - MIA

Nonstop1h 53mSpirit Airlines

Fri 8/83:29 pmMIA - ATL

1 stop8h 00mSpirit Airlines

Deal found 7/27

$109

Thu 8/76:25 pmATL - MIA

Nonstop2h 14mFrontier

Sun 8/106:00 amMIA - ATL

Nonstop2h 12mFrontier

Deal found 7/28

$97

Thu 8/72:03 pmATL - MIA

Nonstop1h 53mMultiple Airlines

Sun 8/176:00 amMIA - ATL

Nonstop2h 12mMultiple Airlines

Deal found 7/29

$105

Thu 8/72:03 pmATL - MIA

Nonstop1h 53mMultiple Airlines

Mon 8/116:00 amMIA - ATL

Nonstop2h 12mMultiple Airlines

Deal found 7/29

$96

Sat 8/232:34 pmATL - MIA

1 stop5h 50mSpirit Airlines

Sat 8/301:45 pmMIA - ATL

Nonstop2h 01mSpirit Airlines

Deal found 7/29

$95

One-way flights from Atlanta to Key Largo
Search for one-way flight options from Atlanta to Key Largo. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Sun 8/32:03 pmATL - MIA

Nonstop1h 53mSpirit Airlines

Deal found 7/27

$55

Fri 10/109:56 pmATL - MIA

Nonstop1h 56mFrontier

Deal found 7/28

$56

Tue 10/78:40 amATL - MIA

1 stop7h 15mSouthwest

Deal found 7/27

$90

Fly from

Fly to

Route

Depart

Return

Price

AtlantaMiami

ATL - MIA

ATLMIA

Atlanta Hartsfield-Jackson

Fri 9/19

6:30 am-8:29 am

Nonstop1h 59m

Miami

Mon 9/22

6:59 pm-9:18 pm

Nonstop2h 19m

$95

AtlantaMiami

ATL - MIA

ATLMIA

Atlanta Hartsfield-Jackson

Fri 11/14

9:30 am-11:30 am

Nonstop2h 00m

Miami

Sun 11/23

5:56 pm-7:59 pm

Nonstop2h 03m

$96

AtlantaMiami

ATL - MIA

ATLMIA

Atlanta Hartsfield-Jackson

Sat 9/20

3:42 pm-5:42 pm

Nonstop2h 00m

Miami

Sun 9/21

5:30 am-7:42 am

Nonstop2h 12m

$98

AtlantaMiami

ATL - MIA

ATLMIA

Atlanta Hartsfield-Jackson

Sun 8/3

2:03 pm-3:56 pm

Nonstop1h 53m

$55

AtlantaMiami

ATL - MIA

ATLMIA

Atlanta Hartsfield-Jackson

Fri 10/10

9:56 pm-11:52 pm

Nonstop1h 56m

$56

AtlantaMiami

ATL - MIA

ATLMIA

Atlanta Hartsfield-Jackson

Tue 10/7

8:40 am-3:55 pm

1 stop7h 15m

$90

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Atlanta to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Atlanta 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 Atlanta to Key Largo

How far ahead should I book a flight from Atlanta to Key Largo?

The price you pay for your flight from Atlanta to Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 30 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Atlanta to Key Largo (average of $232). Flying from Atlanta to Key Largo in March is currently the most expensive (average of $289). 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 ATL to KE9?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Atlanta to Key Largo as you normally would.

What is the cheapest day to fly from Atlanta to Key Largo?

Travelers seeking maximum savings on their Atlanta to Key Largo flight should consider departing on Saturday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Atlanta to Key Largo

The most flights from ATL to KE9 are scheduled on a Monday (75 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (54 on average).

Reviews of airlines servicing Key Largo

Get a feel of what it's like to fly with Southwest, Spirit Airlines, and Frontier from Atlanta to Key Largo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Southwest

8.0

Very good

4,238 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Spirit Airlines

6.3

Okay

8,040 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Frontier

5.9

Fair

3,238 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Related info for your journey

What airport do you fly from for flights from Atlanta to Key Largo?
For a flight from Atlanta to Key Largo, you will be flying from Hartsfield-Jackson. Atlanta Hartsfield-Jackson (ATL) is just 8.2 mi from the center of the city. Hartsfield-Jackson is the only Atlanta airport and it handles 65 outbound flights to Key Largo per day. 5 airlines have flights to Key Largo from Atlanta Hartsfield-Jackson on a regular basis.
How popular is this Atlanta to Key Largo flight route?
This flight path from Atlanta Hartsfield-Jackson to Key Largo was viewed by 402 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
What are the cheapest airlines to fly from Atlanta to Key Largo one-way?
For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $55. Users have also found prices from $56 and $90 on Frontier and Southwest, respectively.
What are the most reliable airlines from Atlanta to Key Largo?
No one likes to see their flight delayed. When booking a flight from Atlanta to Key Largo consider choosing Envoy Air (95%), American Airlines (68%) or Iberia (63%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Atlanta to Key Largo?
Looking at all options, your cheapest flight can be booked for $56. While the most popular route (Atlanta Hartsfield-Jackson - Miami) can be booked for $49 on average our data indicates $653 when flying from Atlanta to Key Largo.
Can I find deals for flights from Atlanta to Key Largo that include hotel bookings?
Yes. In addition to deals on Atlanta to Key Largo flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Atlanta to Key Largo?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Atlanta to Key Largo.
Can I find deals for business class flights from Atlanta to Key Largo?
Yes. Cheapflights offers flight deals from Atlanta 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 Atlanta to Key Largo?
Currently, September is the cheapest month in which you can book a flight from Atlanta to Key Largo (average of $232). Flying from Atlanta to Key Largo in March is currently the most expensive (average of $289). 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

Alternative routes for Atlanta to Key Largo

Atlanta to Miami flights

Atlanta to Fort Lauderdale flights

Atlanta to Orlando flights

Atlanta to Tampa flights

Jacksonville to Miami flights

Atlanta to West Palm Beach flights

Atlanta to Sarasota flights

Atlanta to Fort Myers flights

Atlanta to Jacksonville flights

Asheville to West Palm Beach flights

Atlanta to Key West flights

Chattanooga to Orlando flights

Jacksonville to Fort Lauderdale flights

Tallahassee to Miami flights

Asheville to Fort Lauderdale flights

Chattanooga to Miami flights

Jacksonville to Key West flights

Savannah to Miami flights

Atlanta to Pensacola flights

Atlanta to Gainesville flights

Atlanta to Daytona Beach flights

Chattanooga to Tampa flights

Chattanooga to Orlando Sanford Intl flights

Savannah to Fort Lauderdale flights

Atlanta to Panama City flights

Chattanooga to Fort Lauderdale flights

Atlanta to Melbourne flights

Asheville to Miami flights

Asheville to Orlando Sanford Intl flights

Jacksonville to West Palm Beach flights

Tallahassee to Fort Lauderdale flights

Jacksonville to Tampa flights

Atlanta to Valparaiso flights

Chattanooga to Fort Myers flights

Asheville to Key West flights

Savannah to Tampa flights

Chattanooga to West Palm Beach flights

Asheville to Tampa flights

Augusta to Orlando flights

Chattanooga to Panama City flights

Chattanooga to Sarasota flights

Augusta to Miami flights

Asheville to Orlando flights

Chattanooga to Jacksonville flights

Asheville to St Petersburg flights

Savannah to Key West flights

Chattanooga to Pensacola flights

Jacksonville to Orlando flights

Asheville to Fort Myers flights

Savannah to Orlando flights

Complete your trip

Key Largo car rentals

Miami Airport car rentals

Fort Lauderdale Airport car rentals

Key West Airport car rentals

Orlando car rentals

Miami car rentals

Fort Lauderdale car rentals

Tampa car rentals

Fort Myers car rentals

Jacksonville car rentals

West Palm Beach car rentals

Pensacola car rentals

Top 5 airlines flying from Atlanta to Key Largo

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$54	Average$132	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$63	Average$133	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$114	Average$323	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$168	Average$344	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$174	Average$288	FlexibilityNo cancel fee	On-time63%

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.

$55+ Cheap flights from Atlanta (ATL) 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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Atlanta to Key Largo with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Atlanta Hartsfield-Jackson to Key Largo are usually found in September or October, booked 30 days in advance, depart on a Sunday or Friday and return on a Saturday

Cheap flight deals from Atlanta to Key Largo

Keep the following information in mind while searching for Atlanta to Key Largo flight deals. Data was last updated July 29, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Atlanta to Key Largo

Cheapest flights from Atlanta to Key LargoExplore the most affordable flight options available from Atlanta to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Atlanta to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Atlanta to Key Largo that are best for you.

Best time to book a flight from Atlanta to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Atlanta with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Atlanta to Key Largo

How far ahead should I book a flight from Atlanta to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Atlanta to Key Largo. Price data was last updated on July 25, 2025.

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

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

Find hourly flight availability from Atlanta 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 July 29, 2025.

What is the cheapest day to fly from Atlanta to Key Largo?

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

Weekly flight availability from Atlanta to Key Largo

Explore weekly flight availability from Atlanta to Key Largo. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 29, 2025.

Reviews of airlines servicing Key Largo

Get a feel of what it's like to fly with Southwest, Spirit Airlines, and Frontier from Atlanta to Key Largo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Atlanta 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 Atlanta to Key Largo?

How popular is this Atlanta to Key Largo flight route?

What are the cheapest airlines to fly from Atlanta to Key Largo one-way?

What are the most reliable airlines from Atlanta to Key Largo?

What are the cheapest flights from Atlanta to Key Largo?

Can I find deals for flights from Atlanta to Key Largo that include hotel bookings?

How can I find direct flights from Atlanta to Key Largo?

Can I find deals for business class flights from Atlanta to Key Largo?

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

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 Atlanta to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Atlanta to Key Largo

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Atlanta to Key Largo
Explore the most affordable flight options available from Atlanta to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.