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Key Largo

$89+ Cheap flights from Louisville (SDF) 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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — MIA
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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The best prices from Louisville Intl to Key Largo are usually found in January or April, booked 84 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Louisville to Key Largo

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Key Largo (KE9). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Round-trip from

$210
(American Airlines)

One-way from

$89
(American Airlines)

Popular in

March

Cheapest in

January

Average price

$375
From Louisville Intl to Key Largo
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One-way flight from Louisville Intl to Key Largo
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High demand for flights, 1% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Louisville to Key Largo

Cheapest flights from Louisville to Key Largo
Explore the most affordable flight options available from Louisville to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This American Airlines deal was found by Cheapflights users on 12/17. 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 12/316:00 amSDF - MIA
1 stop7h 14mAmerican Airlines
Thu 2/279:30 pmMIA - SDF
Nonstop2h 51mAmerican Airlines
Deal found 12/17$220
This Delta deal was found by Cheapflights users on 12/17. 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 12/311:58 pmSDF - MIA
1 stop7h 26mDelta
Thu 2/2710:28 amMIA - SDF
1 stop5h 27mDelta
Deal found 12/17$243
This United deal was found by Cheapflights users on 12/17. 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.
Tue 12/317:00 amSDF - MIA
1 stop8h 01mUnited Airlines
Thu 2/278:00 amMIA - SDF
2 stops12h 51mUnited Airlines
Deal found 12/17$319
This Southwest deal was found by Cheapflights users on 12/17. 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.
Wed 12/189:05 amSDF - MIA
2 stops12h 55mSouthwest
Wed 12/2512:00 pmMIA - SDF
2 stops9h 10mSouthwest
Deal found 12/17$417
This Mytrip deal was found by Cheapflights users on 12/16. 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 12/306:44 pmSDF - MIA
3 stops27h 16mSpirit Airlines
Wed 1/15:45 amMIA - SDF
3 stops37h 14mSpirit Airlines
Deal found 12/16$664
This Mytrip deal was found by Cheapflights users on 12/17. 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 12/239:11 amSDF - MIA
2 stops25h 00mMultiple Airlines
Thu 12/265:45 amMIA - SDF
3 stops34h 43mMultiple Airlines
Deal found 12/17$734

Find flights from Louisville to Key Largo within your budget

Customize your flight search to find flights from Louisville 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 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LouisvilleMiami

SDF - MIA

SDFMIA

Louisville Intl

Sun 1/26

6:00 am-8:46 am

Nonstop2h 46m

Miami

Sat 2/1

9:31 pm-12:19 am

Nonstop2h 48m

$210

LouisvilleMiami

SDF - MIA

SDFMIA

Louisville Intl

Mon 1/20

6:40 pm-12:51 am

1 stop6h 11m

Miami

Fri 1/31

7:00 am-11:29 am

1 stop4h 29m

$213

LouisvilleMiami

SDF - MIA

SDFMIA

Louisville Intl

Sun 2/16

10:05 am-8:26 pm

2 stops10h 21m

Miami

Sat 2/22

8:45 am-2:38 pm

1 stop5h 53m

$228

LouisvilleMiami

SDF - MIA

SDFMIA

Louisville Intl

Wed 1/8

7:54 pm-12:12 am

3 stops28h 18m

Miami

Sat 1/11

7:21 pm-6:30 pm

2 stops23h 09m

$318

LouisvilleMiami

SDF - MIA

SDFMIA

Louisville Intl

Wed 1/8

7:54 pm-7:41 pm

3 stops23h 47m

Miami

Sat 1/11

7:21 pm-6:30 pm

2 stops23h 09m

$340

LouisvilleMiami

SDF - MIA

SDFMIA

Louisville Intl

Mon 1/6

7:25 am-7:35 pm

2 stops12h 10m

Miami

Sat 1/11

8:10 am-1:40 pm

1 stop5h 30m

$412

LouisvilleMiami

SDF - MIA

SDFMIA

Louisville Intl

Tue 1/21

6:00 am-8:46 am

Nonstop2h 46m

$89

LouisvilleMiami

SDF - MIA

SDFMIA

Louisville Intl

Tue 1/21

6:00 am-10:53 am

1 stop4h 53m

$98

LouisvilleMiami

SDF - MIA

SDFMIA

Louisville Intl

Sat 1/18

3:30 pm-10:17 pm

1 stop6h 47m

$105

LouisvilleMiami

SDF - MIA

SDFMIA

Louisville Intl

Thu 1/30

7:25 pm-7:41 pm

2 stops24h 16m

$143

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 12 results
1
2

Best time to book a flight from Louisville to Key Largo

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

Travel insights for flights from Louisville to Key Largo

Get recent, data-driven insights about flights from Louisville to Key Largo including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Louisville to Key Largo. Price data was last updated on December 13, 2024.

The price you pay for your flight from Louisville to Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 84 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 Louisville to Key Largo?

Currently, September is the cheapest month in which you can book a flight from Louisville to Key Largo (average of $218). Flying from Louisville to Key Largo in March is currently the most expensive (average of $286). 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 SDF to KE9?

Find hourly flight availability from Louisville 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 18, 2024.

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

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

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

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

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 December 18, 2024.
See what other customers who have flown with United Airlines, American Airlines and Delta from Louisville to Key Largo have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,059 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Spirit Airlines
6.3
Okay
8,119 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

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

    Most people fly from Louisville Intl (SDF) if they book a flight from Louisville to Key Largo. On average, Louisville Intl has 0 outbound flights to Key Largo per day from 6 airlines. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

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

    Flights from Louisville Intl to Key Largo have been viewed 5 times in the past calendar month.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $89. Delta flights start at $98 while deals on United Airlines start at $105 one-way.

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

    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 Louisville to Key Largo on time: Qatar Airways (55%), American Airlines (54%), Envoy Air (0%).

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

    While on average a flight from Louisville to Key Largo is generally $365, our data shows the cheapest flight currently is $139. When looking at the most popular route, (Louisville Intl - Miami), you can expect to pay $196 for that flight.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Louisville to Key Largo (average of $218). Flying from Louisville to Key Largo in March is currently the most expensive (average of $286). 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.

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Top 6 airlines flying from Louisville to Key Largo

Discover the top 6 airlines that operate flights from Louisville 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 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$44Average$127FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$76Average$144FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$201Average$380FlexibilityNo cancel feeOn-time71%
DeltaCheapest$213Average$381FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$435FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$278Average$452FlexibilityNo cancel feeOn-time63%
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