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Port of Spain

$472+ Cheap flights from Seattle (SEA) to Port of Spain (POS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — POS
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
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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 September 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$472
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$541
Provider with most accurate pricing for Seattle/Tacoma Intl-Port of Spain Piarco Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Port of Spain Piarco Intl flights.
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From Seattle/Tacoma Intl to Port of Spain Piarco Intl
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Highest demand for flights based on searches. 24% potential increase in price ($246 potential increase over avg. RT price).
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Cheapest flight prices on average. 12% potential price decrease ($84 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 25, 2025.

This United Airlines deal was found by Cheapflights users on 9/25. 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 10/216:35 amSEA - POS
2 stops13h 48mUnited Airlines
Fri 10/3112:30 amPOS - SEA
1 stop15h 17mUnited Airlines
Deal found 9/25$472
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Fri 9/266:35 amSEA - POS
2 stops13h 48mUnited Airlines
Sat 9/2712:30 amPOS - SEA
1 stop25h 45mUnited Airlines
Deal found 9/23$566
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Mon 11/37:10 amSEA - POS
1 stop13h 13mUnited Airlines
Thu 11/61:30 amPOS - SEA
1 stop21h 55mUnited Airlines
Deal found 9/24$582
This United Airlines deal was found by Cheapflights users on 9/25. 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 10/285:20 pmSEA - POS
2 stops27h 03mUnited Airlines
Sat 11/151:30 amPOS - SEA
2 stops25h 40mUnited Airlines
Deal found 9/25$587
This American Airlines deal was found by Cheapflights users on 9/24. 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.
Tue 10/2111:49 pmSEA - POS
2 stops18h 31mAmerican Airlines
Sat 11/17:00 amPOS - SEA
1 stop19h 35mAmerican Airlines
Deal found 9/24$605
This American Airlines deal was found by Cheapflights users on 9/24. 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.
Tue 10/288:49 pmSEA - POS
1 stop14h 36mAmerican Airlines
Sun 11/167:19 amPOS - SEA
1 stop20h 07mAmerican Airlines
Deal found 9/24$650
This American Airlines deal was found by Cheapflights users on 9/23. 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 9/265:43 pmSEA - POS
2 stops17h 33mAmerican Airlines
Sun 9/283:25 pmPOS - SEA
2 stops22h 54mAmerican Airlines
Deal found 9/23$654

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 September 25, 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

Tue 10/21

6:35 am-11:23 pm

2 stops13h 48m

Port of Spain Piarco Intl

Fri 10/31

12:30 am-6:00 pm

2 stops20h 30m

$472

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Mon 11/3

10:08 pm-3:30 pm

1 stop13h 22m

Port of Spain Piarco Intl

Fri 11/7

7:19 am-11:26 pm

1 stop20h 07m

$582

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Mon 11/3

11:59 pm-12:23 am

1 stop20h 24m

Port of Spain Piarco Intl

Thu 11/6

1:30 am-6:10 pm

2 stops20h 40m

$582

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Tue 10/28

5:05 am-11:23 pm

2 stops15h 18m

Port of Spain Piarco Intl

Sat 11/15

1:30 am-6:10 pm

2 stops20h 40m

$587

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Fri 12/19

5:05 pm-1:48 am

2 stops28h 43m

$820

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Fri 12/19

8:10 am-1:10 am

1 stop13h 00m

$915

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Fri 12/19

11:59 pm-1:05 am

2 stops21h 06m

$1,031

SeattlePort of Spain

SEA - POS

SEAPOS

Seattle/Tacoma Intl

Thu 12/18

12:59 am-11:46 pm

2 stops18h 47m

$1,509

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/24

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 September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Port of Spain flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 $435). Flying from Seattle 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 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 September 25, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 26% 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 September 25, 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
8,926 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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 48m. 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 37% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Seattle to Port of Spain one-way?

    One-way options have recently been found by users for as low as $820 on Copa Airlines. Other airlines that offer cheap prices include Air Canada from $915 and United Airlines from $1,031 one-way.

  • 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 $435). Flying from Seattle 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

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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 September 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$472Average$659FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$493Average$646FlexibilityNo cancel feeOn-time69%

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