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St. Maarten

$95+ Cheap flights from Key Largo, FL to St. Maarten

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SXM
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Key Largo to St. Maarten

Keep the following information in mind while searching for Key Largo to St. Maarten flight deals. Data was last updated September 15, 2025.

Round-trip from

$260
(American Airlines)

One-way from

$95
(Travelocity)

Popular in

December

Cheapest in

September

Average price

$400
From Key Largo to St. Maarten
Search Deals
One-way flight from Key Largo to St. Maarten
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Highest demand for flights based on searches. 14% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($27 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 Key Largo to St. Maarten

Cheapest flights from Key Largo to St. Maarten
Explore the most affordable flight options available from Key Largo to St. Maarten. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 10/612:15 pmMIA - SXM
Nonstop3h 00mAmerican Airlines
Thu 10/92:40 pmSXM - MIA
Nonstop3h 15mAmerican Airlines
Deal found 9/15$260
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1012:15 pmMIA - SXM
Nonstop3h 07mAmerican Airlines
Thu 11/133:20 pmSXM - MIA
Nonstop3h 35mAmerican Airlines
Deal found 9/14$261
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/612:15 pmMIA - SXM
Nonstop3h 00mAmerican Airlines
Mon 10/204:24 pmSXM - MIA
Nonstop3h 15mAmerican Airlines
Deal found 9/14$286
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 11/312:15 pmMIA - SXM
Nonstop3h 07mAmerican Airlines
Wed 11/125:24 pmSXM - MIA
Nonstop3h 31mAmerican Airlines
Deal found 9/15$301
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/1712:15 pmMIA - SXM
Nonstop3h 00mAmerican Airlines
Mon 10/204:24 pmSXM - MIA
Nonstop3h 15mAmerican Airlines
Deal found 9/15$312
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/99:38 pmMIA - SXM
1 stop15h 12mAmerican Airlines
Wed 11/125:24 pmSXM - MIA
Nonstop3h 31mAmerican Airlines
Deal found 9/14$314
This FlightHub deal was found by Cheapflights users on 9/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/51:09 pmMIA - SXM
1 stop5h 43mArajet
Sun 11/912:25 pmSXM - MIA
1 stop5h 30mArajet
Deal found 9/14$317
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:15 pmMIA - SXM
Nonstop3h 00mAmerican Airlines
Fri 11/75:24 pmSXM - MIA
Nonstop3h 31mAmerican Airlines
Deal found 9/14$326
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Tue 9/307:25 pmMIA - SXM
1 stop12h 47mMultiple Airlines
Fri 10/33:05 pmSXM - MIA
2 stops20h 52mMultiple Airlines
Deal found 9/15$336
This eDestinos deal was found by Cheapflights users on 9/14. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/292:09 pmMIA - SXM
1 stop5h 43mArajet
Sun 11/212:25 pmSXM - MIA
1 stop5h 30mArajet
Deal found 9/14$338
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 10/2010:27 amMIA - SXM
Nonstop3h 10mAmerican Airlines
Fri 10/242:40 pmSXM - MIA
Nonstop3h 15mAmerican Airlines
Deal found 9/15$341
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1412:15 pmMIA - SXM
Nonstop3h 07mAmerican Airlines
Sun 11/165:24 pmSXM - MIA
Nonstop3h 31mAmerican Airlines
Deal found 9/14$356

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to St. Maarten 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 15, 2025.
Use the filters below to find and compare flights from Key Largo to St. Maarten that are best for you.

Fly from

Key Largo

Fly to

St. Maarten

Route

Depart

Return

Price

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Tue 11/11

12:15 pm-4:22 pm

Nonstop3h 07m

Simpson Bay Princess Juliana

Mon 11/17

5:24 pm-7:55 pm

Nonstop3h 31m

$326

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Thu 10/30

12:15 pm-3:15 pm

Nonstop3h 00m

Simpson Bay Princess Juliana

Fri 11/7

5:24 pm-7:55 pm

Nonstop3h 31m

$366

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Mon 11/3

5:45 am-1:50 pm

1 stop7h 05m

Simpson Bay Princess Juliana

Mon 11/10

5:24 pm-7:55 pm

Nonstop3h 31m

$366

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Sun 12/7

12:13 pm-4:25 pm

Nonstop3h 12m

Simpson Bay Princess Juliana

Sun 12/14

5:25 pm-8:00 pm

Nonstop3h 35m

$368

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Thu 11/20

5:27 pm-11:28 am

1 stop17h 01m

Simpson Bay Princess Juliana

Sun 11/23

12:24 pm-9:45 pm

1 stop10h 21m

$388

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Mon 10/20

12:15 pm-3:15 pm

Nonstop3h 00m

Simpson Bay Princess Juliana

Sun 10/26

4:24 pm-7:39 pm

Nonstop3h 15m

$407

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Thu 11/20

5:27 pm-11:28 am

1 stop17h 01m

Simpson Bay Princess Juliana

Wed 11/26

12:24 pm-6:51 pm

1 stop7h 27m

$413

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Thu 10/30

6:29 pm-11:31 am

1 stop17h 02m

Simpson Bay Princess Juliana

Sun 11/2

12:24 pm-12:45 am

1 stop13h 21m

$415

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Thu 10/30

6:29 pm-11:31 am

1 stop17h 02m

Simpson Bay Princess Juliana

Fri 11/7

12:24 pm-6:51 pm

1 stop7h 27m

$415

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Sat 10/11

2:55 pm-7:30 pm

2 stops28h 35m

$181

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 18 results
1
2

Best time to book a flight from Key Largo to St. Maarten

Have a flexible travel schedule? Discover the best time to fly to St. Maarten 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 St. Maarten

What is the cheapest month to book a flight from Key Largo to St. Maarten?

Currently, September is the cheapest month in which you can book a flight from Key Largo to St. Maarten (average of $459). Flying from Key Largo to St. Maarten in March is currently the most expensive (average of $652). 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 SX?

Find hourly flight availability from Key Largo to St. Maarten. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Key Largo to St. Maarten, 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 St. Maarten

Explore weekly flight availability from Key Largo to St. Maarten. 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 15, 2025.

The most flights from KE9 to SX0 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 St. Maarten

Get insights into the airlines that provide service to St. Maarten. 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 St. Maarten. Reviews last updated September 15, 2025.
Get a feel of what it's like to fly with American Airlines, Spirit Airlines, and Frontier from Key Largo to St. Maarten by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Food

6.4

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Food

6.4

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
Spirit Airlines
6.3
Okay
8,015 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Food

6.4

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
Frontier
5.8
Fair
3,172 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Food

6.4

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

Related info for your journey

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

  • How long is the flight from Key Largo to St. Maarten?

    For as low as $326, American Airlines can have you in St. Maarten from Key Largo in 3h 07m. The distance between Key Largo and St. Maarten is about 1222 mi. This flight may include one or multiple stops.

  • What are the cheapest flights from Key Largo to St. Maarten?

    The cheapest flight price from Key Largo to St. Maarten is $248. On average you can expect to pay $420. The most popular route, (Miami - Simpson Bay Princess Juliana), can usually be booked for $295.

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

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

  • How can I find direct flights from Key Largo to St. Maarten?

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

  • Can I find deals for business class flights from Key Largo to St. Maarten?

    Yes. Cheapflights offers flight deals from Key Largo to St. Maarten 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 St. Maarten?

    Currently, September is the cheapest month in which you can book a flight from Key Largo to St. Maarten (average of $459). Flying from Key Largo to St. Maarten in March is currently the most expensive (average of $652). 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 5 airlines flying from Key Largo to St. Maarten

Discover the top 5 airlines that operate flights from Key Largo to St. Maarten. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$184Average$249FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$228Average$302FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$332Average$537FlexibilityNo cancel feeOn-time71%
DeltaCheapest$345Average$511FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$438Average$678FlexibilityNo cancel feeOn-time62%

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