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$349+ Cheap flights from Port of Spain (POS) to Seattle (SEA)

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
POS — SEA
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheap flight deals from Port of Spain to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Port of Spain (POS) to Seattle (SEA). 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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$640
(United Airlines)

One-way from

$349
(United Airlines)

Popular in

November

Cheapest in

October

Average price

$1,230
Provider with most accurate pricing for Port of Spain Piarco Intl-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Port of Spain Piarco Intl-Seattle/Tacoma Intl flights.
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From Port of Spain Piarco Intl to Seattle/Tacoma Intl
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One-way flight from Port of Spain Piarco Intl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 1% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Port of Spain to Seattle

Cheapest flights from Port of Spain to Seattle
Explore the most affordable flight options available from Port of Spain to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

This United Airlines deal was found by Cheapflights users on 1/8. 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 3/1612:30 amPOS - SEA
1 stop15h 37mUnited Airlines
Tue 3/246:45 amSEA - POS
1 stop13h 38mUnited Airlines
Deal found 1/8$640
This United Airlines deal was found by Cheapflights users on 1/8. 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.
Thu 9/1712:30 amPOS - SEA
1 stop25h 18mUnited Airlines
Sun 9/2711:59 pmSEA - POS
1 stop20h 24mUnited Airlines
Deal found 1/8$642
This American Airlines deal was found by Cheapflights users on 1/7. 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 3/173:10 pmPOS - SEA
2 stops24h 44mAmerican Airlines
Tue 3/246:22 pmSEA - POS
2 stops16h 48mAmerican Airlines
Deal found 1/7$645
This Air Canada deal was found by Cheapflights users on 1/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/202:20 amPOS - SEA
1 stop23h 56mAir Canada
Thu 2/265:45 amSEA - POS
2 stops15h 35mAir Canada
Deal found 1/7$729
This Kiwi.com deal was found by Cheapflights users on 1/8. 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.
Fri 2/612:10 amPOS - SEA
1 stop23h 40mMultiple Airlines
Sat 2/1410:51 pmSEA - POS
1 stop34h 14mMultiple Airlines
Deal found 1/8$769
This Booking.com deal was found by Cheapflights users on 1/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:15 amPOS - SEA
3 stops29h 00mMultiple Airlines
Sun 9/277:45 pmSEA - POS
2 stops50h 50mMultiple Airlines
Deal found 1/8$920

Cheapflights Fare Finder

 
Customize your flight search to find flights from Port of Spain to Seattle 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 January 8, 2026.
Use the filters below to find and compare flights from Port of Spain to Seattle that are best for you.

Fly from

Port of Spain

Fly to

Seattle

Route

Depart

Return

Price

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Mon 3/16

12:30 am-1:07 pm

1 stop15h 37m

Seattle/Tacoma Intl

Tue 3/24

6:45 am-11:23 pm

1 stop13h 38m

$640

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Fri 2/6

1:30 am-12:49 pm

1 stop15h 19m

Seattle/Tacoma Intl

Sat 2/14

11:59 pm-12:23 am

2 stops20h 24m

$640

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Tue 3/17

3:10 pm-12:54 pm

2 stops24h 44m

Seattle/Tacoma Intl

Tue 3/24

10:16 pm-2:10 pm

1 stop12h 54m

$645

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Tue 1/20

2:20 am-10:16 pm

1 stop23h 56m

Seattle/Tacoma Intl

Thu 2/26

8:10 am-1:20 am

1 stop13h 10m

$729

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Sat 7/4

12:30 am-1:58 pm

2 stops16h 28m

$349

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Fri 7/3

12:30 am-10:59 pm

2 stops25h 29m

$349

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Wed 7/1

12:30 am-3:54 pm

2 stops18h 24m

$352

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Thu 7/2

12:30 am-1:58 pm

2 stops40h 28m

$354

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Wed 7/1

1:25 am-6:32 pm

2 stops44h 07m

$397

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Fri 7/3

7:00 am-11:59 pm

1 stop19h 59m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Compare providers for flights from Port of Spain to Seattle

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 Port of Spain to Seattle in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Port of Spain-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Port of Spain-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Port of Spain-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Port of Spain-Seattle 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 Port of Spain-Seattle 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 Port of Spain to Seattle

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

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated January 8, 2026.
Read through reviews of airlines operating flights from Port of Spain to Seattle, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,139 reviews

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,139 reviews
United Airlines
7.4
Good
9,139 reviews

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Related info for your journey

Find useful and relevant information for your journey from Port of Spain to Seattle. 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 Port of Spain to Seattle?

    Airlines like United Airlines fly from Port of Spain to Seattle in about 15h 37m. The time it takes to get you to your destination can typically vary by up to . The distance from Port of Spain to Seattle is about 4332 mi.

  • What is the cheapest airline to fly from Port of Spain to Seattle round-trip?

    Our cheapest airline available from Port of Spain to Seattle is United Airlines. Our recent data shows that you can find tickets from as low as $631 on this airline. United Airlines is priced at 26% lower than the current average price of a flight leaving 3 months from now.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Port of Spain to Seattle.

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

    Yes. Cheapflights offers flight deals from Port of Spain to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
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Lakewood
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Kirkland
Kent
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Top airline flying from Port of Spain to Seattle

Discover the top airline that operate flights from Port of Spain to Seattle. 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$631Average$750FlexibilityNo cancel feeOn-time69%

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