$333 Cheap Flights from Portland (PDX) to Port of Spain (POS)

View $333 flight on Tue, Dec 2, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Piarco Intl. Airport (POS)

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Cheap Flights from Portland to Port of Spain (PDX-POS)

Prices were available within the past 7 days and start at $333 for one-way flights and $658 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Dec 2 - Mon, Dec 8
PDX
Portland
POS
Trinidad
$658 Roundtrip, found 18 hours ago
$658
Roundtrip
found 18 hours ago
Select United flight, departing Tue, Dec 2 from Portland to Trinidad, returning Mon, Dec 8, priced at $658 found 18 hours ago
United
Tue, Dec 2 - Mon, Dec 8
PDX
Portland
POS
Trinidad
$663 Roundtrip, found 18 hours ago
$663
Roundtrip
found 18 hours ago
Select United flight, departing Tue, Dec 2 from Portland to Trinidad, returning Mon, Dec 8, priced at $663 found 18 hours ago
United
Wed, Dec 3 - Mon, Dec 8
PDX
Portland
POS
Trinidad
$679 Roundtrip, found 2 days ago
$679
Roundtrip
found 2 days ago
Select United flight, departing Wed, Dec 3 from Portland to Trinidad, returning Mon, Dec 8, priced at $679 found 2 days ago
United
Tue, Dec 2 - Mon, Dec 8
PDX
Portland
POS
Trinidad
$683 Roundtrip, found 18 hours ago
$683
Roundtrip
found 18 hours ago
Select United flight, departing Tue, Dec 2 from Portland to Trinidad, returning Mon, Dec 8, priced at $683 found 18 hours ago
United
Wed, Dec 3 - Mon, Dec 8
PDX
Portland
POS
Trinidad
$685 Roundtrip, found 2 days ago
$685
Roundtrip
found 2 days ago
Select United flight, departing Wed, Dec 3 from Portland to Trinidad, returning Mon, Dec 8, priced at $685 found 2 days ago
United
Tue, Dec 2 - Mon, Dec 8
PDX
Portland
POS
Trinidad
$687 Roundtrip, found 18 hours ago
$687
Roundtrip
found 18 hours ago
Select United flight, departing Tue, Dec 2 from Portland to Trinidad, returning Mon, Dec 8, priced at $687 found 18 hours ago
United
Tue, Dec 2 - Mon, Dec 8
PDX
Portland
POS
Trinidad
$693 Roundtrip, found 18 hours ago
$693
Roundtrip
found 18 hours ago
Select United flight, departing Tue, Dec 2 from Portland to Trinidad, returning Mon, Dec 8, priced at $693 found 18 hours ago
American Airlines
Thu, Aug 21 - Mon, Aug 25
PDX
Portland
POS
Trinidad
$703 Roundtrip, found 1 day ago
$703
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Aug 21 from Portland to Trinidad, returning Mon, Aug 25, priced at $703 found 1 day ago
Air Canada
Mon, Dec 1 - Sat, Dec 6
PDX
Portland
POS
Trinidad
$704 Roundtrip, found 19 hours ago
$704
Roundtrip
found 19 hours ago
Select Air Canada flight, departing Mon, Dec 1 from Portland to Trinidad, returning Sat, Dec 6, priced at $704 found 19 hours ago
JetBlue Airways
Thu, Aug 21 - Mon, Aug 25
PDX
Portland
POS
Trinidad
$1,085 Roundtrip, found 1 day ago
$1,085
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Thu, Aug 21 from Portland to Trinidad, returning Mon, Aug 25, priced at $1,085 found 1 day ago

Alternative airports near Piarco

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Piarco Intl. POS. Cheapest option available. Flights from $803
POS
Piarco Intl.
Cheapest
Flights from $803
Flights from Portland (PDX) to Port of Spain (POS)
Origin airport
Portland Intl.
Destination airport
Piarco Intl.
Airlines serving
Air Canada, American Airlines, Copa, JetBlue Airways, United
Roundtrip price
$658
Distance
4315 mi

Portland to Port of Spain Flights

The cheapest times to fly from Portland to Port of Spain

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 Portland to Port of Spain are during the month of December. You can find some of the cheapest flights from Portland to Port of Spain with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Port of Spain

Sunday is one of the best days to book for cheap flights from Portland to Port of Spain: 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 Portland to Port of Spain

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 Portland to Port of Spain in 2025. You can also book with separate airlines for your outbound and return journeys, from $333 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 Portland to Port of Spain 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 Portland to Port of Spain 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.

 

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Piarco Intl. Airport (POS) cost?
Lock in a cheap one-way flight from $333 or cheap return flight from $658 from Portland Intl. Airport (PDX) to Piarco Intl. Airport (POS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Piarco Intl. Airport (POS)?
December is the most affordable month to fly from PDX to POS. Avoiding peak travel times is often the key to scoring lower fares.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Piarco Intl. Airport (POS)?
To find the cheapest airline flying from PDX to POS, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Portland Intl. Airport (PDX) to Piarco Intl. Airport (POS)?
You'll have to book a flight with a layover if you're traveling from Portland Intl. Airport (PDX) to Piarco Intl. Airport (POS). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from PDX to POS?
Usually you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the airline, time of year 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 Portland Intl. Airport (PDX) to Piarco Intl. Airport (POS)?
To avoid possible delays on the Portland Intl. Airport (PDX) to Piarco Intl. Airport (POS) route, aim to fly before 3 PM. Flights after this time have a 22% higher chance of being 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.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Piarco Intl. Airport (POS) last-minute?
Last-minute bookings from PDX to POS are usually more expensive. To secure the lowest rates, start looking for flights well ahead of time. That said, if your travel plans are flexible, you may find a cheap fare just before your departure.
Is it cheaper to book a PDX to POS flight and hotel package?
Booking a PDX to POS flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Select from our wide range of hotels and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Piarco Intl. Airport (POS)?
In most instances, you can modify or cancel your PDX to POS flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you need further details, visit our Customer Service portal.

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*Available to One Key members.