HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Port of Spain

$111+ Cheap flights from Key Largo, FL to Port of Spain (POS)

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — POS
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Key Largo to Port of Spain 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.

Cheapflights Tip: The best prices from Key Largo to Port of Spain Piarco Intl are usually found in January or October, booked 69 days in advance, depart on a Monday or Thursday and return on a Thursday

Cheap flight deals from Key Largo to Port of Spain

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

Round-trip from

$284
(Cheapflightsfares)

One-way from

$111
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$312
From Key Largo to Port of Spain Piarco Intl
Search Deals
One-way flight from Key Largo to Port of Spain Piarco Intl
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Key Largo to Port of Spain

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

This Mytrip deal was found by Cheapflights users on 9/13. 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.
Sun 9/1412:30 amMIA - POS
Nonstop3h 45mCaribbean Airlines
Mon 9/229:10 amPOS - MIA
Nonstop4h 05mCaribbean Airlines
Deal found 9/13$278
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/153:10 pmMIA - POS
Nonstop3h 45mCaribbean Airlines
Sun 9/216:25 pmPOS - MIA
Nonstop4h 05mCaribbean Airlines
Deal found 9/14$279
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.
Sun 10/512:30 amMIA - POS
Nonstop3h 45mCaribbean Airlines
Sat 10/119:10 amPOS - MIA
Nonstop4h 05mCaribbean Airlines
Deal found 9/14$289
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.
Thu 11/136:54 pmMIA - POS
Nonstop3h 45mAmerican Airlines
Mon 11/177:19 amPOS - MIA
Nonstop4h 06mAmerican Airlines
Deal found 9/15$294
This Copa 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:09 amMIA - POS
1 stop7h 08mCopa Airlines
Fri 10/242:40 pmPOS - MIA
1 stop8h 02mCopa Airlines
Deal found 9/15$296
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 11/206:53 pmMIA - POS
Nonstop3h 45mAmerican Airlines
Fri 11/287:19 amPOS - MIA
Nonstop4h 06mAmerican Airlines
Deal found 9/14$299
This American Airlines deal was found by Cheapflights users on 9/13. 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 11/76:54 pmMIA - POS
Nonstop3h 45mAmerican Airlines
Wed 11/124:30 pmPOS - MIA
Nonstop4h 14mAmerican Airlines
Deal found 9/13$300
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.
Sat 11/156:54 pmMIA - POS
Nonstop3h 45mAmerican Airlines
Sun 11/237:19 amPOS - MIA
Nonstop4h 06mAmerican Airlines
Deal found 9/14$304
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1412:30 amMIA - POS
Nonstop3h 45mMultiple Airlines
Sat 9/203:51 amPOS - MIA
1 stop21h 45mMultiple Airlines
Deal found 9/14$307
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/255:27 pmMIA - POS
1 stop18h 50mCopa Airlines
Mon 12/13:47 amPOS - MIA
1 stop12h 58mCopa Airlines
Deal found 9/14$312
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1212:30 amMIA - POS
Nonstop3h 45mCaribbean Airlines
Wed 10/229:10 amPOS - MIA
Nonstop4h 05mCaribbean Airlines
Deal found 9/14$313
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/205:27 pmMIA - POS
1 stop18h 50mCopa Airlines
Mon 12/12:23 pmPOS - MIA
1 stop8h 22mCopa Airlines
Deal found 9/14$315

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Port of Spain 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 Port of Spain that are best for you.

Fly from

Key Largo

Fly to

Port of Spain

Route

Depart

Return

Price

MiamiPort of Spain

MIA - POS

MIAPOS

Miami

Tue 11/11

4:59 am-1:17 pm

1 stop7h 18m

Port of Spain Piarco Intl

Wed 11/19

2:26 pm-12:45 am

1 stop11h 19m

$296

MiamiPort of Spain

MIA - POS

MIAPOS

Miami

Fri 11/7

12:46 pm-1:48 am

1 stop12h 02m

Port of Spain Piarco Intl

Wed 11/12

2:26 pm-12:45 am

1 stop11h 19m

$296

MiamiPort of Spain

MIA - POS

MIAPOS

Miami

Fri 10/10

2:19 pm-1:46 am

1 stop11h 27m

Port of Spain Piarco Intl

Sat 10/18

3:51 am-4:59 pm

1 stop13h 08m

$296

MiamiPort of Spain

MIA - POS

MIAPOS

Miami

Thu 12/4

4:59 am-1:17 pm

1 stop7h 18m

Port of Spain Piarco Intl

Mon 12/8

2:23 pm-9:22 pm

1 stop7h 59m

$296

MiamiPort of Spain

MIA - POS

MIAPOS

Miami

Fri 1/23

4:12 pm-1:44 am

1 stop8h 32m

Port of Spain Piarco Intl

Sun 1/25

3:40 am-3:41 pm

1 stop13h 01m

$296

MiamiPort of Spain

MIA - POS

MIAPOS

Miami

Thu 1/22

12:49 pm-1:44 am

1 stop11h 55m

Port of Spain Piarco Intl

Mon 1/26

2:16 pm-12:37 am

1 stop11h 21m

$317

MiamiPort of Spain

MIA - POS

MIAPOS

Miami

Fri 10/3

6:09 am-1:17 pm

1 stop7h 08m

Port of Spain Piarco Intl

Mon 10/6

3:51 am-12:20 pm

1 stop8h 29m

$338

MiamiPort of Spain

MIA - POS

MIAPOS

Miami

Fri 3/13

6:26 am-1:15 pm

1 stop6h 49m

Port of Spain Piarco Intl

Wed 3/18

3:46 am-4:40 pm

1 stop12h 54m

$343

MiamiPort of Spain

MIA - POS

MIAPOS

Miami

Sun 10/26

12:30 am-4:15 am

Nonstop3h 45m

$123

MiamiPort of Spain

MIA - POS

MIAPOS

Miami

Wed 11/12

2:10 pm-6:55 pm

Nonstop3h 45m

$123

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 19 results
1
2

Best time to book a flight from Key Largo to Port of Spain

Have a flexible travel schedule? Discover the best time to fly to Port of Spain 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 Port of Spain

How far ahead should I book a flight from Key Largo to Port of Spain?

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Port of Spain. Price data was last updated on September 12, 2025.

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Key Largo to Port of Spain. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Key Largo to Port of Spain?

Currently, October is the cheapest month in which you can book a flight from Key Largo to Port of Spain (average of $435). Flying from Key Largo to Port of Spain in December is currently the most expensive (average of $710). 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 POS?

Find hourly flight availability from Key Largo to Port of Spain. 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 Port of Spain, 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 Port of Spain?

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

Travelers seeking maximum savings on their Key Largo to Port of Spain flight should consider departing on Wednesday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Key Largo to Port of Spain

Explore weekly flight availability from Key Largo to Port of Spain. 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 POS are scheduled on a Monday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Port of Spain

Get insights into the airlines that provide service to Port of Spain. 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 Port of Spain. Reviews last updated September 15, 2025.
Read reviews from past customers who have flown Caribbean Airlines, Copa Airlines, and United Airlines from Key Largo to Port of Spain. 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
8.1
Very good
177 reviews

Crew

8.4

Boarding

8.1

Entertainment

6.7

Food

6.8

Comfort

7.9

Overall

8.1

Reviews

1 / 10
6.0
Good

Anonymous,Jul 2025

GEO - POS

The crew was welcoming and helpful. No entertainment no meal only a drink.
Caribbean Airlines
8.1
Very good
177 reviews
Caribbean Airlines
8.1
Very good
177 reviews

Crew

8.4

Boarding

8.1

Entertainment

6.7

Food

6.8

Comfort

7.9

Overall

8.1

Reviews

1 / 10
6.0
Good

Anonymous,Jul 2025

GEO - POS

The crew was welcoming and helpful. No entertainment no meal only a drink.
Copa Airlines
7.6
Good
1,531 reviews
Caribbean Airlines
8.1
Very good
177 reviews

Crew

8.4

Boarding

8.1

Entertainment

6.7

Food

6.8

Comfort

7.9

Overall

8.1

Reviews

1 / 10
6.0
Good

Anonymous,Jul 2025

GEO - POS

The crew was welcoming and helpful. No entertainment no meal only a drink.
United Airlines
7.4
Good
8,929 reviews
Caribbean Airlines
8.1
Very good
177 reviews

Crew

8.4

Boarding

8.1

Entertainment

6.7

Food

6.8

Comfort

7.9

Overall

8.1

Reviews

1 / 10
6.0
Good

Anonymous,Jul 2025

GEO - POS

The crew was welcoming and helpful. No entertainment no meal only a drink.
American Airlines
7.2
Good
10,000 reviews
Caribbean Airlines
8.1
Very good
177 reviews

Crew

8.4

Boarding

8.1

Entertainment

6.7

Food

6.8

Comfort

7.9

Overall

8.1

Reviews

1 / 10
6.0
Good

Anonymous,Jul 2025

GEO - POS

The crew was welcoming and helpful. No entertainment no meal only a drink.
Frontier
5.8
Fair
3,172 reviews
Caribbean Airlines
8.1
Very good
177 reviews

Crew

8.4

Boarding

8.1

Entertainment

6.7

Food

6.8

Comfort

7.9

Overall

8.1

Reviews

1 / 10
6.0
Good

Anonymous,Jul 2025

GEO - POS

The crew was welcoming and helpful. No entertainment no meal only a drink.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Port of Spain. 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 into for flights to Port of Spain from Key Largo?

    If you book a flight to Port of Spain from Key Largo, you will be flying to Piarco Intl, which is the city’s only airport. Port of Spain Piarco Intl (POS) is located 12.6 mi from the center of Port of Spain. There are 3 flights from Key Largo to Piarco Intl per day from 5 different airlines.

  • How popular is this Key Largo to Port of Spain flight route?

    Within the past month, 36 users have taken a look at flights from Key Largo to Port of Spain Piarco Intl.

  • How long is the flight from Key Largo to Port of Spain?

    Departing from Key Largo to Port of Spain will take you 7h 18m. Airlines will cover a distance of 1623 mi.

  • What are the most reliable airlines from Key Largo to Port of Spain?

    The top 3 most reliable airlines when flying from Key Largo to Port of Spain are Caribbean Airlines (91%), American Airlines (73%) and Qatar Airways (70%).

  • What are the cheapest flights from Key Largo to Port of Spain?

    Looking for the cheapest flight from Key Largo to Port of Spain? While on average our users pay $271, our data indicates the cheapest price to be $112. The most popular route (Miami - Port of Spain Piarco Intl), is priced around $264.

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

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

  • How can I find direct flights from Key Largo to Port of Spain?

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

  • Can I find deals for business class flights from Key Largo to Port of Spain?

    Yes. Cheapflights offers flight deals from Key Largo to Port of Spain 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 Port of Spain?

    Currently, October is the cheapest month in which you can book a flight from Key Largo to Port of Spain (average of $435). Flying from Key Largo to Port of Spain in December is currently the most expensive (average of $710). 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.

Top 5 airlines flying from Key Largo to Port of Spain

Discover the top 5 airlines that operate flights from Key Largo to Port of Spain. 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$86Average$277FlexibilityNo cancel feeOn-time62%
Copa AirlinesCheapest$160Average$413FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$208Average$423FlexibilityNo cancel feeOn-time69%
Caribbean AirlinesCheapest$273Average$393FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$292Average$395FlexibilityNo cancel feeOn-time71%

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.