HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Maarten

$97+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SXM
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Key Largo to St. Maarten 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.

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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$311
(American Airlines)

One-way from

$116
(Frontier)

Popular in

December

Cheapest in

September

Average price

$417
Provider with most accurate pricing for Miami-Simpson Bay Princess Juliana flight deals.
Search Deals
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. 18% potential increase in price ($107 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

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 May 1, 2025.

This American Airlines deal was found by Cheapflights users on 4/30. 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 6/3010:19 amMIA - SXM
Nonstop3h 15mAmerican Airlines
Mon 7/74:25 pmSXM - MIA
Nonstop3h 15mAmerican Airlines
Deal found 4/30$311
This Copa Airlines deal was found by Cheapflights users on 4/30. 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 6/56:27 pmMIA - SXM
1 stop16h 56mCopa Airlines
Sun 6/812:18 pmSXM - MIA
1 stop10h 25mCopa Airlines
Deal found 4/30$313
This Expedia deal was found by Cheapflights users on 4/30. 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.
Sat 6/217:25 pmMIA - SXM
1 stop12h 44mMultiple Airlines
Sat 6/286:26 pmSXM - MIA
1 stop22h 33mMultiple Airlines
Deal found 4/30$314
This Booking.com deal was found by Cheapflights users on 4/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/217:30 amMIA - SXM
1 stop9h 46mFrontier
Fri 6/276:26 pmSXM - MIA
1 stop19h 50mFrontier
Deal found 4/30$324
This Delta deal was found by Cheapflights users on 4/30. 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.
Fri 8/17:00 amMIA - SXM
1 stop6h 56mDelta
Mon 8/43:21 pmSXM - MIA
1 stop9h 34mDelta
Deal found 4/30$325
This Orbitz deal was found by Cheapflights users on 4/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/227:25 pmMIA - SXM
1 stop12h 47mArajet
Sun 7/279:14 amSXM - MIA
1 stop8h 41mArajet
Deal found 4/30$364
This Mytrip deal was found by Cheapflights users on 4/30. 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.
Thu 5/2912:28 pmMIA - SXM
3 stops25h 32mSpirit Airlines
Mon 6/23:05 pmSXM - MIA
2 stops23h 05mSpirit Airlines
Deal found 4/30$478
This Gotogate deal was found by Cheapflights users on 4/30. 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.
Thu 5/83:10 pmMIA - SXM
1 stop19h 40mCaribbean Airlines
Mon 5/1211:35 amSXM - MIA
1 stop25h 40mCaribbean Airlines
Deal found 4/30$489
This United Airlines deal was found by Cheapflights users on 4/30. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:40 amMIA - SXM
1 stop8h 11mUnited Airlines
Sat 11/11:53 pmSXM - MIA
1 stop10h 03mUnited Airlines
Deal found 4/30$532

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 May 1, 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

Mon 6/30

10:19 am-1:34 pm

Nonstop3h 15m

Simpson Bay Princess Juliana

Mon 7/7

4:25 pm-7:40 pm

Nonstop3h 15m

$311

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Thu 6/5

6:27 pm-11:23 am

1 stop16h 56m

Simpson Bay Princess Juliana

Sun 6/8

12:18 pm-10:43 pm

1 stop10h 25m

$313

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Sat 6/21

7:25 pm-8:09 am

1 stop12h 44m

Simpson Bay Princess Juliana

Sat 6/28

6:26 pm-4:59 pm

1 stop22h 33m

$314

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Sat 6/21

7:30 am-5:16 pm

1 stop9h 46m

Simpson Bay Princess Juliana

Fri 6/27

6:26 pm-2:16 pm

1 stop19h 50m

$324

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Fri 8/1

7:00 am-1:56 pm

1 stop6h 56m

Simpson Bay Princess Juliana

Mon 8/4

3:21 pm-12:55 am

1 stop9h 34m

$325

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Tue 7/22

7:25 pm-8:12 am

1 stop12h 47m

Simpson Bay Princess Juliana

Sun 7/27

9:14 am-5:55 pm

1 stop8h 41m

$364

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Thu 5/29

12:28 pm-2:00 pm

3 stops25h 32m

Simpson Bay Princess Juliana

Mon 6/2

3:05 pm-2:10 pm

2 stops23h 05m

$478

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Mon 10/27

3:10 pm-10:45 am

2 stops19h 35m

Simpson Bay Princess Juliana

Fri 11/7

11:35 am-12:15 pm

1 stop25h 40m

$496

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Tue 10/28

6:40 am-2:51 pm

1 stop8h 11m

Simpson Bay Princess Juliana

Sat 11/1

1:53 pm-11:56 pm

1 stop10h 03m

$532

MiamiSimpson Bay

MIA - SXM

MIASXM

Miami

Thu 8/21

7:25 pm-8:12 am

1 stop12h 47m

$97

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 20 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 July is currently the most expensive (average of $669). 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 May 1, 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.

What is the cheapest day to fly from Key Largo to St. Maarten?

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

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

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 May 1, 2025.

The most flights from KE9 to SX0 are scheduled on a Monday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 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 May 1, 2025.
Peruse reviews from past customers who have flown with Caribbean Airlines, Delta and Copa Airlines from Key Largo to St. Maarten to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Caribbean Airlines
8.2
Very good
151 reviews

Overall

8.2

Boarding

8.2

Entertainment

6.8

Comfort

7.9

Food

6.8

Crew

8.5

Reviews

1 / 9
6.0
Good

Anonymous,Mar 2025

JFK - GEO

Air hostesses were friendly. There should be more options for tea.
Caribbean Airlines
8.2
Very good
151 reviews
Caribbean Airlines
8.2
Very good
151 reviews

Overall

8.2

Boarding

8.2

Entertainment

6.8

Comfort

7.9

Food

6.8

Crew

8.5

Reviews

1 / 9
6.0
Good

Anonymous,Mar 2025

JFK - GEO

Air hostesses were friendly. There should be more options for tea.
Delta
8.0
Very good
7,934 reviews
Caribbean Airlines
8.2
Very good
151 reviews

Overall

8.2

Boarding

8.2

Entertainment

6.8

Comfort

7.9

Food

6.8

Crew

8.5

Reviews

1 / 9
6.0
Good

Anonymous,Mar 2025

JFK - GEO

Air hostesses were friendly. There should be more options for tea.
Copa Airlines
7.5
Good
1,415 reviews
Caribbean Airlines
8.2
Very good
151 reviews

Overall

8.2

Boarding

8.2

Entertainment

6.8

Comfort

7.9

Food

6.8

Crew

8.5

Reviews

1 / 9
6.0
Good

Anonymous,Mar 2025

JFK - GEO

Air hostesses were friendly. There should be more options for tea.
United Airlines
7.4
Good
8,696 reviews
Caribbean Airlines
8.2
Very good
151 reviews

Overall

8.2

Boarding

8.2

Entertainment

6.8

Comfort

7.9

Food

6.8

Crew

8.5

Reviews

1 / 9
6.0
Good

Anonymous,Mar 2025

JFK - GEO

Air hostesses were friendly. There should be more options for tea.
JetBlue
7.3
Good
2,922 reviews
Caribbean Airlines
8.2
Very good
151 reviews

Overall

8.2

Boarding

8.2

Entertainment

6.8

Comfort

7.9

Food

6.8

Crew

8.5

Reviews

1 / 9
6.0
Good

Anonymous,Mar 2025

JFK - GEO

Air hostesses were friendly. There should be more options for tea.

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.

  • What are the cheapest airlines to fly from Key Largo to St. Maarten one-way?

    One-way options have recently been found by users for as low as $116 on Frontier. Other airlines that offer cheap prices include Arajet from $122 and Copa Airlines from $206 one-way.

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

    The cheapest flight price from Key Largo to St. Maarten is $243. On average you can expect to pay $370. The most popular route, (Miami - Simpson Bay Princess Juliana), can usually be booked for $291.

  • 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 July is currently the most expensive (average of $669). 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 Key Largo to St. Maarten

See prices for flight routes from nearby airports that may be better suited for you.
Orlando to Luis Munoz Marin Intl flights
Fort Lauderdale to Luis Munoz Marin Intl flights
Tampa to Luis Munoz Marin Intl flights
Miami to Luis Munoz Marin Intl flights
Orlando to Punta Cana flights
Orlando to Montego Bay flights
Orlando to Ponce flights
Fort Lauderdale to Punta Cana flights
Fort Lauderdale to Montego Bay flights
Orlando to Santo Domingo flights
Miami to Nassau flights
Miami to Punta Cana flights
Fort Lauderdale to Nassau flights
Orlando to Santiago de los Caballeros flights
Miami to Castries flights
Fort Lauderdale to Santo Domingo flights
Miami to Santo Domingo flights
Fort Lauderdale to Kingston flights
Orlando to Saint Thomas Island flights
Miami to Montego Bay flights
Miami to Oranjestad flights
Orlando to Nassau flights
Jacksonville to Luis Munoz Marin Intl flights
Miami to Havana flights
Orlando to Aguadilla flights
Miami to Santiago de los Caballeros flights
Miami to Cap Haitien flights
Miami to Port of Spain flights
Fort Lauderdale to Saint Thomas Island flights
Miami to Willemstad flights
Miami to Providenciales flights
Miami to Simpson Bay flights
Miami to Saint Thomas Island flights
Orlando to Castries flights
Orlando to Oranjestad flights
Miami to Castries flights
Miami to George Town flights
Miami to Kingston flights
Fort Lauderdale to Santiago de los Caballeros flights
Miami to Bridgetown flights
Tampa to Punta Cana flights
Tampa to Nassau flights
Tampa to Saint Thomas Island flights
Miami to St. John's flights
Tampa to Santo Domingo flights
Miami to St. George's flights
Jacksonville to Montego Bay flights
West Palm Beach to Luis Munoz Marin Intl flights
Orlando to Simpson Bay flights
Fort Lauderdale to Marsh Harbour flights

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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$181Average$244FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$225Average$298FlexibilityNo cancel feeOn-time65%
DeltaCheapest$260Average$487FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$299Average$566FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$438Average$721FlexibilityNo cancel feeOn-time62%

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.