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$42+ Cheap flights from Key Largo, FL to Atlanta (ATL)

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — ATL
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Atlanta Hartsfield-Jackson are usually found in September or February, booked 68 days in advance, depart on a Saturday or Thursday and return on a Sunday

Cheap flight deals from Key Largo to Atlanta

Keep the following information in mind while searching for Key Largo to Atlanta flight deals. Data was last updated octubre 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$70
(Frontier)

One-way from

$42
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$154
Provider with most accurate pricing for Miami-Atlanta Hartsfield-Jackson flight deals.
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From Key Largo to Atlanta Hartsfield-Jackson
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One-way flight from Key Largo to Atlanta Hartsfield-Jackson
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Highest demand for flights based on searches. 3% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Key Largo to Atlanta

Cheapest flights from Key Largo to Atlanta
Explore the most affordable flight options available from Key Largo to Atlanta. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/256:21 pmMIA - ATL
Nonstop2h 14mFrontier
lun. 12/13:10 pmATL - MIA
Nonstop1h 59mFrontier
Deal found 10/28$70
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/265:30 amMIA - ATL
Nonstop2h 14mFrontier
lun. 12/19:40 pmATL - MIA
Nonstop2h 00mFrontier
Deal found 10/30$71
This CheapOair deal was found by Cheapflights users on 10/30. 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.
jue. 11/67:07 pmMIA - ATL
Nonstop2h 21mFrontier
lun. 11/243:10 pmATL - MIA
Nonstop1h 59mFrontier
Deal found 10/30$72
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/81:58 pmMIA - ATL
Nonstop2h 10mFrontier
lun. 11/1010:38 pmATL - MIA
Nonstop1h 56mFrontier
Deal found 10/28$73
This Frontier deal was found by Cheapflights users on 10/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/245:30 amMIA - ATL
Nonstop2h 14mFrontier
vie. 11/288:49 amATL - MIA
Nonstop2h 00mFrontier
Deal found 10/28$74
This Frontier deal was found by Cheapflights users on 10/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/265:30 amMIA - ATL
Nonstop2h 14mFrontier
vie. 11/281:29 pmATL - MIA
Nonstop1h 56mFrontier
Deal found 10/29$75
This Priceline deal was found by Cheapflights users on 10/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/125:27 pmMIA - ATL
1 stop6h 25mMultiple Airlines
mié. 11/1910:32 amATL - MIA
Nonstop1h 57mMultiple Airlines
Deal found 10/28$76
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/1312:17 pmMIA - ATL
1 stop11h 35mSpirit Airlines
dom. 11/169:00 amATL - MIA
Nonstop2h 00mSpirit Airlines
Deal found 10/28$77
This CheapOair deal was found by Cheapflights users on 10/28. 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.
vie. 11/285:30 amMIA - ATL
Nonstop2h 14mFrontier
lun. 12/19:40 pmATL - MIA
Nonstop2h 00mFrontier
Deal found 10/28$78
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/46:05 amMIA - ATL
Nonstop1h 57mSpirit Airlines
jue. 12/49:07 amATL - MIA
Nonstop2h 05mSpirit Airlines
Deal found 10/28$79
This Priceline deal was found by Cheapflights users on 10/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/1412:05 pmMIA - ATL
Nonstop2h 04mMultiple Airlines
sáb. 11/151:38 pmATL - MIA
1 stop7h 10mMultiple Airlines
Deal found 10/28$80
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/75:01 amMIA - ATL
Nonstop2h 12mFrontier
lun. 11/1010:38 pmATL - MIA
Nonstop1h 56mFrontier
Deal found 10/28$81

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Atlanta 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 octubre 30, 2025.
Use the filters below to find and compare flights from Key Largo to Atlanta that are best for you.

Fly from

Key Largo

Fly to

Atlanta

Route

Depart

Return

Price

MiamiAtlanta

MIA - ATL

MIAATL

Miami

sáb. 11/15

8:00 am-9:39 am

1 stop25h 39m

Atlanta Hartsfield-Jackson

sáb. 11/22

9:40 pm-11:40 pm

Nonstop2h 00m

$86

MiamiAtlanta

MIA - ATL

MIAATL

Miami

jue. 11/27

9:10 am-2:15 pm

1 stop5h 05m

Atlanta Hartsfield-Jackson

lun. 12/1

7:35 pm-11:00 pm

1 stop3h 25m

$185

MiamiAtlanta

MIA - ATL

MIAATL

Miami

vie. 1/16

4:50 pm-9:20 pm

1 stop4h 30m

Atlanta Hartsfield-Jackson

lun. 1/19

6:10 am-1:45 pm

1 stop7h 35m

$188

MiamiAtlanta

MIA - ATL

MIAATL

Miami

mié. 11/26

7:00 am-10:25 am

1 stop3h 25m

Atlanta Hartsfield-Jackson

mié. 12/31

11:35 am-7:50 pm

1 stop8h 15m

$194

MiamiAtlanta

MIA - ATL

MIAATL

Miami

sáb. 11/8

6:20 am-2:00 pm

2 stops7h 40m

Atlanta Hartsfield-Jackson

jue. 11/13

4:35 pm-11:45 pm

1 stop7h 10m

$209

MiamiAtlanta

MIA - ATL

MIAATL

Miami

mié. 11/19

4:52 pm-6:53 pm

Nonstop2h 01m

Atlanta Hartsfield-Jackson

jue. 11/20

4:30 pm-6:25 pm

Nonstop1h 55m

$217

MiamiAtlanta

MIA - ATL

MIAATL

Miami

jue. 12/25

5:05 pm-8:55 pm

1 stop3h 50m

Atlanta Hartsfield-Jackson

dom. 12/28

7:15 pm-12:05 am

1 stop4h 50m

$232

MiamiAtlanta

MIA - ATL

MIAATL

Miami

vie. 11/28

6:00 am-2:15 pm

1 stop8h 15m

Atlanta Hartsfield-Jackson

lun. 12/1

7:15 pm-12:05 am

1 stop4h 50m

$233

MiamiAtlanta

MIA - ATL

MIAATL

Miami

mié. 11/19

11:40 am-10:15 pm

2 stops10h 35m

Atlanta Hartsfield-Jackson

jue. 11/20

11:55 am-9:50 pm

2 stops9h 55m

$235

MiamiAtlanta

MIA - ATL

MIAATL

Miami

mar. 1/13

7:15 am-3:10 pm

2 stops7h 55m

Atlanta Hartsfield-Jackson

mié. 1/14

1:10 pm-10:00 pm

2 stops8h 50m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 21 results
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Best time to book a flight from Key Largo to Atlanta

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

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Atlanta. Price data was last updated on October 24, 2025.

Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from Key Largo to Atlanta. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from Key Largo to Atlanta (average of $47). Flying from Key Largo to Atlanta in June is currently the most expensive (average of $79). 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 KE9 to ATL?

Find hourly flight availability from Key Largo to Atlanta. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 30, 2025.

One of the essential ways to save on airfare from Key Largo to Atlanta is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 46% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Atlanta. Price data was last updated on October 26, 2025.

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

Reviews of airlines servicing Atlanta

Get insights into the airlines that provide service to Atlanta. 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 Atlanta. Reviews last updated octubre 30, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and American Airlines from Key Largo to Atlanta 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.
Southwest
8.0
Very good
4,243 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,998 reviews
Southwest
8.0
Very good
4,243 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,035 reviews
Southwest
8.0
Very good
4,243 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,116 reviews
Southwest
8.0
Very good
4,243 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,122 reviews
Southwest
8.0
Very good
4,243 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

    Atlanta Hartsfield-Jackson (ATL) is the airport you will fly into if you book a flight from Key Largo to Atlanta. You should not have trouble finding flights to Hartsfield-Jackson from Key Largo; the airport handles an average of 28 inbound flights from Key Largo per day. You should also have plenty of airline options to choose from since 6 airlines have flights to the Atlanta airport from Key Largo. It is only a 8.2 mi journey from Hartsfield-Jackson (ATL) to Atlanta’s city center.

  • How popular is this Key Largo to Atlanta flight route?

    Within the past month, 163 users have taken a look at flights from Key Largo to Atlanta Hartsfield-Jackson.

  • How long is the flight from Key Largo to Atlanta?

    For as low as $185, Frontier can have you in Atlanta from Key Largo in 5h 05m. The distance between Key Largo and Atlanta is about 596 mi. This flight may include one or multiple stops.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Key Largo to Atlanta on time: Republic Airways (88%), Spirit Airlines (84%), Frontier (82%).

  • What are the cheapest flights from Key Largo to Atlanta?

    The cheapest flight price from Key Largo to Atlanta is $38. On average you can expect to pay $592. The most popular route, (Miami - Atlanta Hartsfield-Jackson), can usually be booked for $47.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key Largo to Atlanta 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 Key Largo to Atlanta?

    Currently, February is the cheapest month in which you can book a flight from Key Largo to Atlanta (average of $47). Flying from Key Largo to Atlanta in June is currently the most expensive (average of $79). 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

Traveling to a place near Atlanta?

Book flights to Atlanta if you plan to visit one of these locations
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Top 6 airlines flying from Key Largo to Atlanta

Discover the top 6 airlines that operate flights from Key Largo to Atlanta. 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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$55Average$121FlexibilityNo cancel feeOn-time65%
FrontierCheapest$55Average$122FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$93Average$163FlexibilityNo cancel feeOn-time62%
DeltaCheapest$149Average$323FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$157Average$285FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$163Average$264FlexibilityNo cancel feeOn-time63%

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