Cheap Flights from Port of Spain (POS) to Union Island (UNI)

Popular airlines from Piarco Intl. Airport (POS) to Union Island (UNI)

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Frequently asked questions

How much does a flight from Piarco Intl. Airport (POS) to Union Island (UNI) cost?
Secure a cheap one-way flight or cheap return flight from Piarco Intl. Airport (POS) to Union Island (UNI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Piarco Intl. Airport (POS) to Union Island (UNI)?
Traveling in may help you find better deals, as it's the cheapest month for flights between POS and UNI. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Piarco Intl. Airport (POS) to Union Island (UNI)?
To find the cheapest airline flying from POS to UNI, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Piarco Intl. Airport (POS) to Union Island (UNI)?
You'll have to book a flight with a layover if you're traveling from Piarco Intl. Airport (POS) to Union Island (UNI). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from POS to UNI?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Piarco Intl. Airport (POS) to Union Island (UNI)?
To avoid possible delays on the Piarco Intl. Airport (POS) to Union Island (UNI) route, fly before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Union Island from Piarco Intl. Airport (POS)?
If you're on a direct flight from Piarco Intl. Airport (POS) to Union Island, Argyle Intl. Airport (SVD) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Piarco Intl. Airport (POS) to Union Island (UNI) last-minute?
Booking your ticket from POS to UNI right before your journey is generally more expensive. But if there's some wiggle room with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book a POS to UNI flight and hotel package?
You'll typically save money by securing a POS to UNI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. After choosing your preferred flights and accommodations, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Piarco Intl. Airport (POS) to Union Island (UNI)?
Typically, you're able to cancel or reschedule your POS to UNI flight. However, additional charges may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you'd like more information, visit our Customer Service portal.

Travel information

Travel information

Origin airport
Piarco Intl.
Destination airport
Union Island
Distance
138 mi

Book with confidence

Book with confidence

Port of Spain to Union Island Flights

The cheapest times to fly from Port of Spain to Union Island

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Port of Spain to Union Island are during the month of . You can find some of the cheapest flights from Port of Spain to Union Island with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Port of Spain to Union Island

Sunday is one of the best days to book for cheap flights from Port of Spain to Union Island: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Port of Spain to Union Island

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Port of Spain to Union Island in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Port of Spain to Union Island flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Port of Spain to Union Island airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Port of Spain to Union Island Flights

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*Available to One Key members.