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Saint Lucia

$173+ Cheap flights from Key Largo, FL to Saint Lucia

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — UVF
ene. 26 — feb. 21
dom. 1/26
dom. 2/2
1 adult, Economy
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Cheap flight deals from Key Largo to Saint Lucia

Discover tips and strategies to find the most affordable flight options for your journey from Key Largo (KE9) to Saint Lucia (LC0). 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 enero 21, 2025.

Round-trip from

$446
(JetBlue)

One-way from

$173
(JetBlue)
From Key Largo to Saint Lucia
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One-way flight from Key Largo to Saint Lucia
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Find flight deals from Key Largo to Saint Lucia

Cheapest flights from Key Largo to Saint Lucia
Explore the most affordable flight options available from Key Largo to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2025.

This JetBlue deal was found by Cheapflights users on 1/21. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/287:17 pmMIA - UVF
1 stop16h 38mJetBlue
lun. 3/35:44 pmUVF - MIA
1 stop16h 23mJetBlue
Deal found 1/21$446
This American Airlines deal was found by Cheapflights users on 1/20. 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.
mar. 3/1110:10 amMIA - UVF
Nonstop3h 30mAmerican Airlines
mié. 3/262:40 pmUVF - MIA
Nonstop4h 05mAmerican Airlines
Deal found 1/20$473
This Delta deal was found by Cheapflights users on 1/20. 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.
mar. 3/116:00 amMIA - UVF
1 stop8h 00mDelta
mié. 3/263:20 pmUVF - MIA
1 stop9h 25mDelta
Deal found 1/20$487
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/12:10 pmMIA - SLU
1 stop20h 35mCaribbean Airlines
dom. 2/95:00 amSLU - MIA
1 stop8h 15mCaribbean Airlines
Deal found 1/20$506
This Kissandfly.com deal was found by Cheapflights users on 1/21. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/177:30 pmMIA - UVF
2 stops18h 40mBritish Airways
mar. 3/252:40 pmUVF - MIA
Nonstop4h 05mBritish Airways
Deal found 1/21$554
This Kiwi.com deal was found by Cheapflights users on 1/20. 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. 2/12:10 pmMIA - SLU
1 stop7h 00mMultiple Airlines
dom. 2/95:00 amSLU - MIA
2 stops41h 12mMultiple Airlines
Deal found 1/20$569
This Expedia deal was found by Cheapflights users on 1/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/67:45 amMIA - UVF
1 stop31h 00mAir Canada
dom. 2/94:45 pmUVF - MIA
1 stop30h 22mAir Canada
Deal found 1/20$625
This Mytrip deal was found by Cheapflights users on 1/21. 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.
jue. 4/31:55 pmMIA - UVF
2 stops24h 50mMultiple Airlines
lun. 4/73:45 pmUVF - MIA
3 stops28h 17mMultiple Airlines
Deal found 1/21$738

Find flights from Key Largo to Saint Lucia within your budget

Customize your flight search to find flights from Key Largo to Saint Lucia 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 enero 21, 2025.

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Depart

Return

Price

MiamiCastries

MIA - UVF

MIAUVF

Miami

vie. 3/28

7:17 pm-11:38 am

1 stop16h 21m

Castries Hewanorra

lun. 3/31

1:12 pm-11:51 pm

1 stop10h 39m

$446

MiamiCastries

MIA - UVF

MIAUVF

Miami

mar. 3/11

10:10 am-1:40 pm

Nonstop3h 30m

Castries Hewanorra

mié. 3/26

2:40 pm-6:45 pm

Nonstop4h 05m

$473

MiamiCastries

MIA - UVF

MIAUVF

Miami

vie. 3/14

6:00 am-2:00 pm

1 stop8h 00m

Castries Hewanorra

mar. 3/18

3:20 pm-12:45 am

1 stop9h 25m

$512

MiamiCastries

MIA - SLU

MIASLU

Miami

jue. 2/6

2:10 pm-11:30 am

1 stop20h 20m

Castries George F. L. Charle

dom. 2/9

5:00 am-12:15 pm

1 stop8h 15m

$549

MiamiCastries

MIA - UVF

MIAUVF

Miami

lun. 3/17

7:30 pm-2:10 pm

2 stops18h 40m

Castries Hewanorra

mar. 3/25

2:40 pm-6:45 pm

Nonstop4h 05m

$554

MiamiCastries

MIA - UVF

MIAUVF

Miami

mar. 2/4

10:30 pm-3:45 pm

1 stop16h 15m

Castries Hewanorra

mar. 2/11

4:45 pm-11:57 pm

1 stop32h 12m

$604

MiamiCastries

MIA - SLU

MIASLU

Miami

vie. 1/31

2:10 pm-12:55 pm

2 stops21h 45m

Castries George F. L. Charle

lun. 2/3

4:35 pm-12:15 pm

1 stop20h 40m

$686

MiamiCastries

MIA - UVF

MIAUVF

Miami

mié. 4/9

6:05 pm-2:45 pm

2 stops44h 40m

Castries Hewanorra

mié. 4/23

3:45 pm-10:08 pm

3 stops30h 23m

$736

MiamiCastries

MIA - UVF

MIAUVF

Miami

mar. 3/11

7:00 am-3:18 pm

1 stop8h 18m

$173

MiamiCastries

MIA - SLU

MIASLU

Miami

jue. 4/3

3:10 pm-11:30 am

1 stop20h 20m

$218

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 18 results
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Best time to book a flight from Key Largo to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia 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.

Travel insights for flights from Key Largo to Saint Lucia

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

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

Currently, January is the cheapest month in which you can book a flight from Key Largo to Saint Lucia (average of $556). Flying from Key Largo to Saint Lucia in December is currently the most expensive (average of $730). 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 LC?

Find hourly flight availability from Key Largo to Saint Lucia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 21, 2025.

When flying from Key Largo to Saint Lucia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Key Largo to Saint Lucia

Explore weekly flight availability from Key Largo to Saint Lucia. 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 enero 21, 2025.

The most flights from KE9 to LC0 are scheduled on a Monday (4 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Saint Lucia

Get insights into the airlines that provide service to Saint Lucia. 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 Saint Lucia. Reviews last updated enero 21, 2025.
To help decide which airline to fly from Key Largo to Saint Lucia, see what other customers have to say about Air Canada, American Airlines and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Caribbean Airlines
8.0
Very good
154 reviews

Food

6.7

Comfort

7.8

Crew

8.3

Boarding

8.1

Entertainment

6.6

Overall

8.0

Reviews

1 / 8

The flight attendants on my flight needs training on how to speak to people.

Caribbean Airlines
8.0
Very good
154 reviews
Caribbean Airlines
8.0
Very good
154 reviews

Food

6.7

Comfort

7.8

Crew

8.3

Boarding

8.1

Entertainment

6.6

Overall

8.0

Reviews

1 / 8

The flight attendants on my flight needs training on how to speak to people.

Delta
8.0
Very good
8,521 reviews
Caribbean Airlines
8.0
Very good
154 reviews

Food

6.7

Comfort

7.8

Crew

8.3

Boarding

8.1

Entertainment

6.6

Overall

8.0

Reviews

1 / 8

The flight attendants on my flight needs training on how to speak to people.

Finnair
7.6
Good
1,286 reviews
Caribbean Airlines
8.0
Very good
154 reviews

Food

6.7

Comfort

7.8

Crew

8.3

Boarding

8.1

Entertainment

6.6

Overall

8.0

Reviews

1 / 8

The flight attendants on my flight needs training on how to speak to people.

JetBlue
7.4
Good
3,200 reviews
Caribbean Airlines
8.0
Very good
154 reviews

Food

6.7

Comfort

7.8

Crew

8.3

Boarding

8.1

Entertainment

6.6

Overall

8.0

Reviews

1 / 8

The flight attendants on my flight needs training on how to speak to people.

United Airlines
7.4
Good
8,984 reviews
Caribbean Airlines
8.0
Very good
154 reviews

Food

6.7

Comfort

7.8

Crew

8.3

Boarding

8.1

Entertainment

6.6

Overall

8.0

Reviews

1 / 8

The flight attendants on my flight needs training on how to speak to people.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Saint Lucia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    $173 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on Caribbean Airlines and Air Canada, with prices starting from $218 and $245, respectively.

  • What are the cheapest flights from Key Largo to Saint Lucia?

    While on average a flight from Key Largo to Saint Lucia is generally $470, our data shows the cheapest flight currently is $298. When looking at the most popular route, (Miami - Castries Hewanorra), you can expect to pay $446 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key Largo to Saint Lucia 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 Saint Lucia?

    Currently, January is the cheapest month in which you can book a flight from Key Largo to Saint Lucia (average of $556). Flying from Key Largo to Saint Lucia in December is currently the most expensive (average of $730). 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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Alternative routes for Key Largo to Saint Lucia

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Top 3 airlines flying from Key Largo to Saint Lucia

Discover the top 3 airlines that operate flights from Key Largo to Saint Lucia. 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 enero 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$393Average$609FlexibilityNo cancel feeOn-time71%
Caribbean AirlinesCheapest$444Average$577FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$447Average$621FlexibilityNo cancel feeOn-timeN/A
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