$210 Cheap Flights from Seattle (SEA) to Port of Spain (POS)

View $210 flight on Sat, Dec 6, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Piarco Intl. Airport (POS)

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Cheap Flights from Seattle to Port of Spain (SEA-POS)

Prices were available within the past 7 days and start at $210 for one-way flights and $473 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Jan 23 - Sun, Feb 1
SEA
Seattle
POS
Trinidad
$473 Roundtrip, found 18 hours ago
$473
Roundtrip
found 18 hours ago
Select United flight, departing Fri, Jan 23 from Seattle to Trinidad, returning Sun, Feb 1, priced at $473 found 18 hours ago
American Airlines
Tue, May 19 - Wed, May 27
SEA
Seattle
POS
Trinidad
$477 Roundtrip, found 7 hours ago
$477
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Tue, May 19 from Seattle to Trinidad, returning Wed, May 27, priced at $477 found 7 hours ago
American Airlines
Mon, May 18 - Sun, May 31
SEA
Seattle
POS
Trinidad
$482 Roundtrip, found 5 hours ago
$482
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Mon, May 18 from Seattle to Trinidad, returning Sun, May 31, priced at $482 found 5 hours ago
United
Fri, Jan 23 - Sun, Feb 1
SEA
Seattle
POS
Trinidad
$483 Roundtrip, found 18 hours ago
$483
Roundtrip
found 18 hours ago
Select United flight, departing Fri, Jan 23 from Seattle to Trinidad, returning Sun, Feb 1, priced at $483 found 18 hours ago
United
Sun, Feb 1 - Mon, Feb 16
SEA
Seattle
POS
Trinidad
$485 Roundtrip, found 6 days ago
$485
Roundtrip
found 6 days ago
Select United flight, departing Sun, Feb 1 from Seattle to Trinidad, returning Mon, Feb 16, priced at $485 found 6 days ago
American Airlines
Tue, May 19 - Wed, May 27
SEA
Seattle
POS
Trinidad
$485 Roundtrip, found 7 hours ago
$485
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Tue, May 19 from Seattle to Trinidad, returning Wed, May 27, priced at $485 found 7 hours ago
American Airlines
Sun, Jan 11 - Thu, Jan 22
SEA
Seattle
POS
Trinidad
$486 Roundtrip, found 1 day ago
$486
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Jan 11 from Seattle to Trinidad, returning Thu, Jan 22, priced at $486 found 1 day ago
JetBlue Airways
Sun, May 10 - Wed, May 27
SEA
Seattle
POS
Trinidad
$559 Roundtrip, found 2 days ago
$559
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Sun, May 10 from Seattle to Trinidad, returning Wed, May 27, priced at $559 found 2 days ago
Air Canada
Tue, Jan 27 - Wed, Feb 4
SEA
Seattle
POS
Trinidad
$673 Roundtrip, found 2 days ago
$673
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue, Jan 27 from Seattle to Trinidad, returning Wed, Feb 4, priced at $673 found 2 days ago
Copa
Tue, May 19 - Wed, May 27
SEA
Seattle
POS
Trinidad
$701 Roundtrip, found 7 hours ago
$701
Roundtrip
found 7 hours ago
Select Copa flight, departing Tue, May 19 from Seattle to Trinidad, returning Wed, May 27, priced at $701 found 7 hours ago

Find the cheapest month to fly from Seattle (SEA) to Piarco (POS)

October is typically the cheapest month to fly

From $458 - $1,845 per traveler.

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 $624
POS
Piarco Intl.
Cheapest
Flights from $624

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Piarco Intl. Airport (POS) cost?
Snag a cheap one-way flight from $210 or cheap return flight from $473 from Seattle - Tacoma Intl. Airport (SEA) to Piarco Intl. Airport (POS) 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 Seattle - Tacoma Intl. Airport (SEA) to Piarco Intl. Airport (POS)?
The cheapest month to fly from SEA to POS is January, when demand is low. Off-peak months are typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Piarco Intl. Airport (POS)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SEA to POS flight.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Piarco Intl. Airport (POS)?
You'll need to take a flight with a layover when traveling from Seattle - Tacoma Intl. Airport (SEA) to Piarco Intl. Airport (POS). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from SEA to POS?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary depending on a range of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Piarco Intl. Airport (POS)?
Choose a flight from Seattle - Tacoma Intl. Airport (SEA) to Piarco Intl. Airport (POS) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this hour are on average 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.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Piarco Intl. Airport (POS) last-minute?
Last-minute bookings from SEA to POS are typically more expensive. To lock in the lowest prices, start looking for flights ahead of time. That said, if you're flexible with your travel dates, it's possible to land a cheap fare right before you leave.
Is it cheaper to book a SEA to POS flight and hotel package?
You'll generally save money by booking a SEA to POS flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've chosen your ideal accommodations and flights, consider other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Piarco Intl. Airport (POS)?
If you reserved your SEA to POS flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Piarco Intl.
Airlines serving
Air Canada, American Airlines, Copa, JetBlue Airways, United
Roundtrip price
$472
Distance
4333 mi

Book with confidence

Seattle to Port of Spain Flights

The cheapest times to fly from Seattle 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 Seattle to Port of Spain are during the month of January. You can find some of the cheapest flights from Seattle to Port of Spain with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Seattle 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 Seattle 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 Seattle to Port of Spain in 2025. You can also book with separate airlines for your outbound and return journeys, from $210 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 Seattle 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 Seattle 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.

 

Seattle to Port of Spain Flights

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*Available to One Key members.