HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key Largo

$129+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — MIA
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Greenville 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 Greenville to Key Largo are usually found in September or May, booked 56 days in advance, depart on a Friday or Thursday and return on a Tuesday

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 April 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$277
(Southwest)

One-way from

$129
(Delta)

Popular in

December

Cheapest in

September

Average price

$374
Provider with most accurate pricing for Greenville-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for Greenville-Miami flights.
Search Deals
From Greenville to Key Largo
Search Deals
One-way flight from Greenville to Key Largo
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($14 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 April 2025
Search Deals

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 April 15, 2025.

This Southwest deal was found by Cheapflights users on 4/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/254:45 pmGSP - MIA
1 stop5h 30mSouthwest
Wed 5/2812:45 pmMIA - GSP
1 stop7h 25mSouthwest
Deal found 4/14$277
This Mytrip deal was found by Cheapflights users on 4/15. 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 4/283:55 pmGSP - MIA
2 stops28h 30mMultiple Airlines
Thu 5/18:58 amMIA - GSP
2 stops30h 07mMultiple Airlines
Deal found 4/15$294
This Delta deal was found by Cheapflights users on 4/15. 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.
Sat 5/105:30 amGSP - MIA
1 stop5h 20mDelta
Sat 5/175:35 amMIA - GSP
1 stop5h 01mDelta
Deal found 4/15$316
This American Airlines deal was found by Cheapflights users on 4/15. 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 6/75:19 pmGSP - MIA
Nonstop1h 58mAmerican Airlines
Thu 6/129:58 pmMIA - GSP
Nonstop1h 59mAmerican Airlines
Deal found 4/15$355
This United deal was found by Cheapflights users on 4/15. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/36:00 amGSP - MIA
2 stops15h 51mUnited Airlines
Sat 5/106:25 amMIA - GSP
1 stop9h 05mUnited Airlines
Deal found 4/15$421

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 April 15, 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

Sun 5/25

4:45 pm-10:15 pm

1 stop5h 30m

Miami

Wed 5/28

12:45 pm-8:10 pm

1 stop7h 25m

$277

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Mon 4/28

3:55 pm-8:25 pm

2 stops28h 30m

Miami

Thu 5/1

8:58 am-3:05 pm

2 stops30h 07m

$294

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Sat 5/10

5:30 am-10:50 am

1 stop5h 20m

Miami

Sat 5/17

5:35 am-10:36 am

1 stop5h 01m

$316

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Sat 6/7

5:19 pm-7:17 pm

Nonstop1h 58m

Miami

Thu 6/12

9:58 pm-11:57 pm

Nonstop1h 59m

$355

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Sat 5/3

6:00 am-9:51 pm

2 stops15h 51m

Miami

Sat 5/10

6:25 am-3:30 pm

1 stop9h 05m

$421

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Sun 5/11

5:30 am-9:31 am

1 stop4h 01m

$129

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Mon 5/26

6:50 am-2:00 pm

1 stop7h 10m

$155

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Sun 5/11

3:18 pm-7:58 pm

3 stops28h 40m

$177

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Sun 5/11

5:54 am-7:46 am

Nonstop1h 52m

$185

GreenvilleMiami

GSP - MIA

GSPMIA

Greenville

Mon 5/26

6:00 am-11:17 am

2 stops29h 17m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

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 April 11, 2025.

Booking 56 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 $229). 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 April 15, 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 Saturday at noon when fares are most often at their lowest. Monday afternoons 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 April 15, 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).

Rainfall in Key Largo by month

Plan your trip to Key Largo by taking into account the average rainfall totals by month.

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.

Temperature in Key Largo by month

Plan your trip to Key Largo by taking into account the average temperature totals by month.

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).

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 April 15, 2025.
Read through reviews of airlines operating flights from Greenville to Key Largo, such as Southwest, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,279 reviews

Crew

8.6

Boarding

8.2

Food

7.1

Entertainment

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,279 reviews
Southwest
8.0
Very good
4,279 reviews

Crew

8.6

Boarding

8.2

Food

7.1

Entertainment

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,918 reviews
Southwest
8.0
Very good
4,279 reviews

Crew

8.6

Boarding

8.2

Food

7.1

Entertainment

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,658 reviews
Southwest
8.0
Very good
4,279 reviews

Crew

8.6

Boarding

8.2

Food

7.1

Entertainment

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,279 reviews

Crew

8.6

Boarding

8.2

Food

7.1

Entertainment

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $129. Users have also found prices from $155 and $185 on Southwest and American Airlines, respectively.

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

    Consider American Airlines (90%), Envoy Air (90%) or Qatar Airways (89%) 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 $121. On average you can expect to pay $410. The most popular route, (Greenville - Miami), can usually be booked for $277.

  • 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 $229). 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

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 Greenville to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
Charlotte to Fort Lauderdale flights
Charlotte to Orlando flights
Charlotte to Miami flights
Charlotte to Tampa flights
Charlotte to West Palm Beach flights
Charleston to Fort Lauderdale flights
Myrtle Beach to Orlando flights
Charlotte to Key West flights
Charleston to Miami flights
Charlotte to Pensacola flights
Myrtle Beach to Fort Lauderdale flights
Charlotte to Jacksonville flights
Greenville to Miami flights
Charlotte to Sarasota flights
Columbia to Miami flights
Charlotte to Fort Myers flights
Savannah to Miami flights
Columbia to Orlando flights
Charleston to Tampa flights
Greenville to Orlando flights
Charlotte to Panama City flights
Myrtle Beach to Miami flights
Greenville to Tampa flights
Columbia to Fort Lauderdale flights
Charlotte to Valparaiso flights
Savannah to Tampa flights
Charleston to Orlando flights
Charleston to Key West flights
Charlotte to St Petersburg flights
Augusta to Orlando flights
Charleston to West Palm Beach flights
Columbia to Key West flights
Charleston to Panama City flights
Greenville to West Palm Beach flights
Greenville to Pensacola flights
Charleston to Fort Myers flights
Savannah to Fort Lauderdale flights
Myrtle Beach to Tampa flights
Greenville to Panama City flights
Greenville to Jacksonville flights
Greenville to Fort Myers flights
Greenville to Fort Lauderdale flights
Charlotte to Melbourne flights
Greenville to Sarasota flights
Columbia to West Palm Beach flights
Charleston to Pensacola flights
Charleston to Valparaiso flights
Charlotte to Daytona Beach flights
Greenville to Key West flights
Augusta to Miami flights

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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$79Average$145FlexibilityNo cancel feeOn-time88%
DeltaCheapest$207Average$354FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$229Average$388FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$240Average$474FlexibilityNo cancel feeOn-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.