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Key Largo

$91+ Cheap flights from Greenville (GSP) 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — MIA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Greenville to Key Largo are usually found in September or November, booked 81 days in advance, depart on a Saturday or Friday and return on a Wednesday

Cheap flight deals from Greenville to Key Largo

Keep the following information in mind while searching for Greenville to Key Largo flight deals. Data was last updated September 11, 2025.

Round-trip from

$179
(American Airlines)

One-way from

$91
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$362
From Greenville to Key Largo
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One-way flight from Greenville to Key Largo
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Highest demand for flights based on searches. 2% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Greenville to Key Largo

Cheapest flights from Greenville to Key Largo
Explore the most affordable flight options available from Greenville to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:46 pmGSP - MIA
Nonstop2h 04mAmerican Airlines
Sat 11/12:07 pmMIA - GSP
Nonstop1h 51mAmerican Airlines
Deal found 9/10$182
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/125:00 amGSP - MIA
Nonstop1h 54mAmerican Airlines
Sat 11/153:32 pmMIA - GSP
Nonstop2h 09mAmerican Airlines
Deal found 9/9$185
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/411:34 amGSP - MIA
Nonstop1h 55mAmerican Airlines
Wed 11/129:02 amMIA - GSP
Nonstop2h 02mAmerican Airlines
Deal found 9/10$189
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/274:46 pmGSP - MIA
Nonstop2h 04mAmerican Airlines
Sat 11/12:07 pmMIA - GSP
Nonstop1h 51mAmerican Airlines
Deal found 9/11$193
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:15 amGSP - MIA
Nonstop2h 00mAmerican Airlines
Mon 12/88:01 amMIA - GSP
Nonstop1h 55mAmerican Airlines
Deal found 9/10$197
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/164:46 pmGSP - MIA
Nonstop2h 04mAmerican Airlines
Mon 10/209:27 pmMIA - GSP
Nonstop1h 54mAmerican Airlines
Deal found 9/10$205
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/45:30 amGSP - MIA
1 stop4h 05mDelta
Wed 11/128:05 amMIA - GSP
1 stop6h 12mDelta
Deal found 9/11$209
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/277:41 pmGSP - MIA
1 stop4h 48mDelta
Sat 11/16:00 amMIA - GSP
1 stop4h 09mDelta
Deal found 9/11$213
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/67:41 pmGSP - MIA
1 stop4h 48mDelta
Wed 10/86:00 amMIA - GSP
1 stop6h 50mDelta
Deal found 9/10$217
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/314:46 pmGSP - MIA
Nonstop2h 04mAmerican Airlines
Sat 11/89:02 amMIA - GSP
Nonstop2h 02mAmerican Airlines
Deal found 9/9$218

Cheapflights Fare Finder

 
Customize your flight search to find flights from Greenville 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 September 11, 2025.
Use the filters below to find and compare flights from Greenville to Key Largo that are best for you.

Fly from

Greenville

Fly to

Key Largo

Route

Depart

Return

Price

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Tue 9/30

7:35 am-1:28 pm

1 stop5h 53m

Miami

Wed 10/1

7:30 am-11:24 am

1 stop3h 54m

$209

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Mon 10/27

7:41 pm-12:29 am

1 stop4h 48m

Miami

Sat 11/1

6:00 am-10:09 am

1 stop4h 09m

$213

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Mon 10/6

7:41 pm-12:29 am

1 stop4h 48m

Miami

Wed 10/8

6:00 am-12:50 pm

1 stop6h 50m

$217

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Thu 10/16

5:30 am-9:35 am

1 stop4h 05m

Miami

Mon 10/20

7:39 pm-11:55 pm

1 stop4h 16m

$225

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Thu 10/2

10:03 am-3:17 pm

1 stop5h 14m

Miami

Mon 10/6

7:10 am-12:50 pm

1 stop5h 40m

$225

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Wed 12/3

7:45 am-1:06 pm

1 stop5h 21m

Miami

Mon 12/8

6:30 pm-11:56 pm

1 stop5h 26m

$225

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Fri 11/14

6:01 am-11:12 am

1 stop5h 11m

Miami

Mon 11/17

10:03 pm-11:59 pm

Nonstop1h 56m

$240

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Wed 11/12

7:40 am-8:25 pm

2 stops12h 45m

Miami

Sat 11/15

8:15 am-1:00 pm

1 stop4h 45m

$248

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Tue 9/30

10:25 am-4:20 pm

1 stop5h 55m

Miami

Wed 10/1

9:00 am-7:55 pm

2 stops10h 55m

$248

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Fri 1/30

6:45 am-10:52 am

1 stop4h 07m

Miami

Mon 2/2

7:00 am-1:54 pm

1 stop6h 54m

$250

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 20 results
1
2

Best time to book a flight from Greenville to Key Largo

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

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

Use this chart to determine the optimal time to book a round-trip flight from Greenville to Key Largo. Price data was last updated on August 29, 2025.

Booking 81 days in advance of your planned departure date is, on average, the best time to get cheap flights from Greenville to Key Largo. 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 Greenville to Key Largo?

Currently, September is the cheapest month in which you can book a flight from Greenville to Key Largo (average of $232). Flying from Greenville 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 GSP to KE9?

Find hourly flight availability from Greenville 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 September 11, 2025.

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

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

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

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

Weekly flight availability from Greenville to Key Largo

Explore weekly flight availability from Greenville 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 September 11, 2025.

The most flights from GSP to KE9 are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

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 September 11, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and American Airlines from Greenville to Key Largo 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
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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
Allegiant Air
7.2
Good
702 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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 Greenville 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 Greenville to Key Largo?

    Greenville (GSP) is the airport you will fly out of if you book a flight from Greenville to Key Largo. You should not have trouble finding flights to Key Largo from Greenville; the airport handles an average of 2 outbound flights to Key Largo per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the Greenville airport to Key Largo. It is only a 10.4 mi journey to Greenville (GSP) from Greenville’s city center.

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

    Departing from Greenville to Key Largo will take you 5h 53m. There are 639 mi between Greenville and Key Largo.

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

    Consider Republic Airways (80%), American Airlines (77%) or Envoy Air (75%) when booking your flight. These represent the most reliable airlines when flying from Greenville to Key Largo.

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

    The cheapest flight price from Greenville to Key Largo is $98. On average you can expect to pay $618. The most popular route, (Greenville - Miami), can usually be booked for $205.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Greenville to Key Largo (average of $232). Flying from Greenville 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

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Top 4 airlines flying from Greenville to Key Largo

Discover the top 4 airlines that operate flights from Greenville 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$80Average$154FlexibilityNo cancel feeOn-time88%
DeltaCheapest$198Average$382FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$227Average$441FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$253Average$406FlexibilityNo cancel feeOn-time71%

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