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

$251+ Cheap flights from Seattle (SEA) 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — POS
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle 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.

Find flight deals from Seattle to Port of Spain

Cheapest flights from Seattle to Port of Spain
Explore the most affordable flight options available from Seattle to Port of Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2025.

This Orbitz deal was found by Cheapflights users on 11/10. 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.
Sat 11/298:00 pmSEA - POS
2 stops25h 10mAir Canada
Tue 12/22:15 amPOS - SEA
2 stops16h 16mAir Canada
Deal found 11/10$684
This United Airlines deal was found by Cheapflights users on 11/10. 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.
Sat 11/297:10 amSEA - POS
1 stop13h 13mUnited Airlines
Tue 12/21:30 amPOS - SEA
1 stop25h 17mUnited Airlines
Deal found 11/10$728
This United Airlines deal was found by Cheapflights users on 11/10. 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.
Sat 11/157:10 amSEA - POS
1 stop13h 13mUnited Airlines
Sat 12/271:30 amPOS - SEA
1 stop15h 17mUnited Airlines
Deal found 11/10$756
This United Airlines deal was found by Cheapflights users on 11/10. 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 12/165:00 amSEA - POS
2 stops15h 23mUnited Airlines
Mon 12/221:30 amPOS - SEA
2 stops20h 36mUnited Airlines
Deal found 11/10$759
This American Airlines deal was found by Cheapflights users on 11/10. 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 11/1510:08 pmSEA - POS
1 stop13h 22mAmerican Airlines
Sun 12/284:46 pmPOS - SEA
1 stop22h 44mAmerican Airlines
Deal found 11/10$774
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
Sat 11/293:20 pmSEA - POS
2 stops26h 40mMultiple Airlines
Wed 12/39:10 amPOS - SEA
1 stop17h 20mMultiple Airlines
Deal found 11/10$830
This American Airlines deal was found by Cheapflights users on 11/10. 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 11/2812:59 amSEA - POS
2 stops18h 39mAmerican Airlines
Wed 12/37:10 amPOS - SEA
1 stop20h 06mAmerican Airlines
Deal found 11/10$870

Cheap flight deals from Seattle to Port of Spain

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Port of Spain (POS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$583
(United Airlines)

One-way from

$251
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$746
Provider with most accurate pricing for Seattle/Tacoma Intl-Port of Spain Piarco Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Port of Spain Piarco Intl flights.
Search Deals
From Seattle/Tacoma Intl to Port of Spain Piarco Intl
Search Deals
One-way flight from Seattle/Tacoma Intl to Port of Spain Piarco Intl
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($198 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($67 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle 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 November 10, 2025.
Use the filters below to find and compare flights from Seattle to Port of Spain that are best for you.

Fly from

Seattle

Fly to

Port of Spain

Route

Depart

Return

Price

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Sun 1/11

7:00 am-12:23 am

1 stop13h 23m

Port of Spain Piarco Intl

Sun 1/18

1:30 am-4:01 pm

2 stops18h 31m

$583

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Sun 1/11

7:00 am-12:23 am

1 stop13h 23m

Port of Spain Piarco Intl

Thu 1/15

1:30 am-12:49 pm

1 stop15h 19m

$583

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Sat 1/3

1:55 pm-12:23 am

2 stops30h 28m

Port of Spain Piarco Intl

Fri 1/16

1:30 am-4:29 pm

2 stops18h 59m

$587

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Sun 1/11

11:11 pm-3:25 pm

1 stop12h 14m

Port of Spain Piarco Intl

Mon 1/19

6:30 am-11:42 pm

1 stop21h 12m

$601

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Sat 11/15

10:08 pm-3:30 pm

1 stop13h 22m

$251

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Sat 11/15

12:41 pm-12:23 am

3 stops31h 42m

$312

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Fri 12/19

12:44 pm-12:23 am

2 stops31h 39m

$586

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Mon 12/8

10:05 am-1:10 am

2 stops35h 05m

$771

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Thu 12/18

12:59 am-11:46 pm

2 stops18h 47m

$1,050

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Compare providers for flights from Seattle to Port of Spain

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Port of Spain in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Port of Spain flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Port of Spain flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Port of Spain flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Port of Spain flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Port of Spain flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Port of Spain

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

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

Currently, October is the cheapest month in which you can book a flight from Seattle to Port of Spain (average of $482). Flying from Seattle to Port of Spain in December is currently the most expensive (average of $1,135). 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 SEA to POS?

Find hourly flight availability from Seattle 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 November 10, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 25% on flights from Seattle to Port of Spain by exploring options for tickets in the morning.

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 November 10, 2025.
Get a feel of what it's like to fly with United Airlines and American Airlines from Seattle to Port of Spain by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,012 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,012 reviews
United Airlines
7.4
Good
9,012 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,045 reviews
United Airlines
7.4
Good
9,012 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Seattle 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.

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

    There are many flights that can get you from Seattle to Port of Spain in 13h 23m. Fly via United Airlines to get the fastest option. Seattle and Port of Spain are separated by a distance of 4332 mi.

  • What are the cheapest airlines flying from Seattle to Port of Spain round-trip?

    American Airlines, at $472, was found to be the cheapest airline from Seattle to Port of Spain. An alternate airline flying to your destination would be United Airlines. American Airlines is 35% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

  • How can I find direct flights from Seattle 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 Seattle to Port of Spain.

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

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

    Currently, October is the cheapest month in which you can book a flight from Seattle to Port of Spain (average of $482). Flying from Seattle to Port of Spain in December is currently the most expensive (average of $1,135). 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 Seattle to Port of Spain

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Port of Spain flights

Top 2 airlines flying from Seattle to Port of Spain

Discover the top 2 airlines that operate flights from Seattle 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 November 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$472Average$729FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$493Average$649FlexibilityNo cancel feeOn-time69%

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.