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St. Maarten

$76+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SXM
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap 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 February 3, 2026.

This American Airlines deal was found by Cheapflights users on 2/2. 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 3/212:09 pm
MIA
-
SXM
Nonstop3h 19m
American Airlines
Tue 3/35:28 pm
SXM
-
MIA
Nonstop3h 42m
American Airlines
Deal found 2/2$256
This Copa Airlines deal was found by Cheapflights users on 2/3. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:29 pm
MIA
-
SXM
1 stop16h 55m
Copa Airlines
Mon 3/212:25 pm
SXM
-
MIA
1 stop13h 15m
Copa Airlines
Deal found 2/3$279
This American Airlines deal was found by Cheapflights users on 2/2. 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 3/1012:09 pm
MIA
-
SXM
Nonstop3h 19m
American Airlines
Fri 5/84:35 pm
SXM
-
MIA
Nonstop3h 30m
American Airlines
Deal found 2/2$286
This Frontier deal was found by Cheapflights users on 2/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/285:05 am
MIA
-
SXM
1 stop7h 54m
Frontier
Sat 3/74:41 pm
SXM
-
MIA
1 stop9h 06m
Frontier
Deal found 2/1$287
This Copa Airlines deal was found by Cheapflights users on 2/2. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:27 pm
MIA
-
SXM
1 stop16h 55m
Copa Airlines
Mon 3/1612:25 pm
SXM
-
MIA
1 stop7h 30m
Copa Airlines
Deal found 2/2$289
This Delta deal was found by Cheapflights users on 2/2. 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.
Wed 3/116:00 am
MIA
-
SXM
1 stop7h 54m
Delta
Tue 3/3112:55 pm
SXM
-
MIA
1 stop9h 31m
Delta
Deal found 2/2$290
This American Airlines deal was found by Cheapflights users on 2/2. 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 4/88:36 am
MIA
-
SXM
Nonstop3h 02m
American Airlines
Fri 4/174:35 pm
SXM
-
MIA
Nonstop3h 30m
American Airlines
Deal found 2/2$292
This American Airlines deal was found by Cheapflights users on 2/1. 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 3/310:03 am
MIA
-
SXM
Nonstop3h 16m
American Airlines
Fri 3/63:17 pm
SXM
-
MIA
Nonstop3h 47m
American Airlines
Deal found 2/1$296
This American Airlines deal was found by Cheapflights users on 2/3. 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 4/2212:17 pm
MIA
-
SXM
Nonstop3h 05m
American Airlines
Wed 4/292:24 pm
SXM
-
MIA
1 stop16h 50m
American Airlines
Deal found 2/3$297

Find 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 February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$256
(American Airlines)

One-way from

$76
(Frontier)

Popular in

December

Cheapest in

January

Average price

$439
Provider with most accurate pricing for Miami-Simpson Bay Princess Juliana flight deals.
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Provider most trusted by Cheapflights users for Miami-Simpson Bay Princess Juliana flights.
Search Deals
From Key Largo to St. Maarten
Search Deals
One-way flight from Key Largo to St. Maarten
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($0 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 3, 2026.
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

Thu 2/26

5:29 pm-11:24 am

1 stop16h 55m

Simpson Bay Princess Juliana

Mon 3/2

12:25 pm-9:24 pm

1 stop9h 59m

$279

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Thu 3/12

6:27 pm-11:22 am

1 stop16h 55m

Simpson Bay Princess Juliana

Mon 3/16

12:25 pm-7:55 pm

1 stop7h 30m

$289

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Sat 5/23

6:29 pm-11:27 am

1 stop16h 58m

Simpson Bay Princess Juliana

Wed 5/27

12:25 pm-1:41 am

1 stop13h 16m

$289

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Thu 4/9

6:29 pm-11:26 am

1 stop16h 57m

Simpson Bay Princess Juliana

Mon 4/13

12:25 pm-7:58 pm

1 stop7h 33m

$289

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Tue 3/10

7:05 am-1:54 pm

1 stop6h 49m

Simpson Bay Princess Juliana

Wed 5/6

3:30 pm-10:24 am

1 stop18h 54m

$301

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Mon 3/9

6:00 am-1:54 pm

1 stop7h 54m

Simpson Bay Princess Juliana

Fri 5/8

3:20 pm-12:55 am

1 stop9h 35m

$301

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Tue 3/10

5:40 pm-11:29 am

1 stop17h 49m

Simpson Bay Princess Juliana

Thu 5/7

3:20 pm-9:27 am

1 stop18h 07m

$301

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Wed 3/11

6:00 am-1:54 pm

1 stop7h 54m

Simpson Bay Princess Juliana

Wed 5/6

3:30 pm-10:24 am

1 stop18h 54m

$301

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Sat 2/28

5:05 am-1:59 pm

1 stop7h 54m

$76

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Wed 2/18

6:00 am-2:50 pm

1 stop7h 50m

$116

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/31

Showing 1-10 of 17 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, November is the cheapest month in which you can book a flight from Key Largo to St. Maarten (average of $142). Flying from Key Largo to St. Maarten in July is currently the most expensive (average of $256). 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 February 3, 2026.

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 February 3, 2026.

The most flights from KE9 to SX0 are scheduled on a Friday (5 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (1 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 February 3, 2026.
Get a feel of what it's like to fly with American Airlines, JetBlue, and Spirit Airlines 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
11,218 reviews

Overall

7.2

Comfort

7.2

Crew

8.0

Entertainment

6.9

Food

6.4

Boarding

7.5

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
American Airlines
7.2
Good
11,218 reviews
American Airlines
7.2
Good
11,218 reviews

Overall

7.2

Comfort

7.2

Crew

8.0

Entertainment

6.9

Food

6.4

Boarding

7.5

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
JetBlue
7.2
Good
2,893 reviews
American Airlines
7.2
Good
11,218 reviews

Overall

7.2

Comfort

7.2

Crew

8.0

Entertainment

6.9

Food

6.4

Boarding

7.5

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
Spirit Airlines
6.3
Okay
8,407 reviews
American Airlines
7.2
Good
11,218 reviews

Overall

7.2

Comfort

7.2

Crew

8.0

Entertainment

6.9

Food

6.4

Boarding

7.5

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.

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 popular is this Key Largo to St. Maarten flight route?

    This flight path from Key Largo to St. Maarten was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    For as low as $279, Copa Airlines can have you in St. Maarten from Key Largo in 16h 55m. The distance between Key Largo and St. Maarten is about 1222 mi.

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

    The cheapest flight price from Key Largo to St. Maarten is $99. On average you can expect to pay $270. The most popular route, (Miami - Simpson Bay Princess Juliana), can usually be booked for $272.

  • 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, November is the cheapest month in which you can book a flight from Key Largo to St. Maarten (average of $142). Flying from Key Largo to St. Maarten in July is currently the most expensive (average of $256). 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 Key Largo to St. Maarten

Discover the top 4 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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$168Average$275FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$185Average$368FlexibilityNo cancel feeOn-time62%
DeltaCheapest$242Average$457FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$281Average$501FlexibilityNo cancel feeOn-time71%

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