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$345+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
POS — SEA
Dec 24 — Dec 311
Wed 12/24
Wed 12/31
1 adult, Economy
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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 November 24, 2025.

This United Airlines deal was found by Cheapflights users on 11/23. 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.
Sat 12/201:30 amPOS - SEA
1 stop25h 22mUnited Airlines
Wed 12/245:02 amSEA - POS
2 stops39h 21mUnited Airlines
Deal found 11/23$636
This United Airlines deal was found by Cheapflights users on 11/22. 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 12/201:30 amPOS - SEA
2 stops25h 42mUnited Airlines
Thu 1/15:00 amSEA - POS
2 stops15h 23mUnited Airlines
Deal found 11/22$637
This United Airlines deal was found by Cheapflights users on 11/23. 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.
Sat 12/201:30 amPOS - SEA
2 stops25h 17mUnited Airlines
Sun 12/2811:59 pmSEA - POS
1 stop20h 24mUnited Airlines
Deal found 11/23$722
This United Airlines deal was found by Cheapflights users on 11/22. 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.
Sun 12/211:30 amPOS - SEA
3 stops23h 37mUnited Airlines
Thu 1/15:00 amSEA - POS
2 stops15h 23mUnited Airlines
Deal found 11/22$723
This Priceline deal was found by Cheapflights users on 11/23. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/302:15 amPOS - SEA
2 stops40h 16mAir Canada
Sun 12/78:10 amSEA - POS
1 stop13h 00mAir Canada
Deal found 11/23$760
This United Airlines deal was found by Cheapflights users on 11/24. 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 12/221:30 amPOS - SEA
2 stops36h 26mUnited Airlines
Fri 1/212:35 pmSEA - POS
2 stops31h 48mUnited Airlines
Deal found 11/24$815
This United Airlines deal was found by Cheapflights users on 11/22. 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 12/201:30 amPOS - SEA
1 stop22h 14mUnited Airlines
Fri 1/212:35 pmSEA - POS
2 stops31h 48mUnited Airlines
Deal found 11/22$816
This Kiwi.com deal was found by Cheapflights users on 11/22. 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.
Thu 12/2510:10 amPOS - SEA
1 stop16h 19mMultiple Airlines
Thu 1/18:16 amSEA - POS
1 stop16h 59mMultiple Airlines
Deal found 11/22$843

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 November 24, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$636
(United Airlines)

One-way from

$345
(United Airlines)

Popular in

January

Cheapest in

May

Average price

$1,081
Provider with most accurate pricing for Port of Spain Piarco Intl-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Port of Spain Piarco Intl-Seattle/Tacoma Intl flights.
Search Deals
From Port of Spain Piarco Intl to Seattle/Tacoma Intl
Search Deals
One-way flight from Port of Spain Piarco Intl to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($137 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($40 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 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 November 24, 2025.
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

Thu 2/5

1:30 am-6:26 pm

2 stops20h 56m

Seattle/Tacoma Intl

Tue 2/24

6:45 am-12:23 am

1 stop13h 38m

$636

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Thu 2/5

1:30 am-12:49 pm

1 stop15h 19m

Seattle/Tacoma Intl

Fri 2/27

6:45 am-12:23 am

1 stop13h 38m

$636

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Tue 2/10

1:30 am-12:49 pm

1 stop15h 19m

Seattle/Tacoma Intl

Tue 2/24

6:45 am-12:23 am

1 stop13h 38m

$636

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Sat 12/20

1:30 am-10:52 pm

1 stop25h 22m

Seattle/Tacoma Intl

Wed 12/24

5:02 am-12:23 am

2 stops39h 21m

$636

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Mon 2/9

1:30 am-12:49 pm

1 stop15h 19m

Seattle/Tacoma Intl

Sat 2/21

6:45 am-12:23 am

1 stop13h 38m

$636

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

Wed 2/25

6:45 am-12:23 am

1 stop13h 38m

$636

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Sun 2/8

2:20 am-9:12 pm

2 stops22h 52m

Seattle/Tacoma Intl

Tue 2/24

11:59 pm-12:23 am

2 stops20h 24m

$636

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Mon 2/9

2:20 am-9:12 pm

3 stops22h 52m

Seattle/Tacoma Intl

Tue 2/24

6:45 am-12:23 am

1 stop13h 38m

$636

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Sat 2/7

1:30 am-12:49 pm

1 stop15h 19m

Seattle/Tacoma Intl

Sat 2/21

6:45 am-12:23 am

1 stop13h 38m

$636

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Thu 2/5

1:30 am-6:26 pm

2 stops20h 56m

Seattle/Tacoma Intl

Thu 2/26

6:45 am-12:23 am

1 stop13h 38m

$636

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/23

Showing 1-10 of 20 results
1
2

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 November 24, 2025.
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
9,037 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

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
9,037 reviews
United Airlines
7.4
Good
9,037 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

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 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 20h 56m. 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 $617 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
SeaTac
Tacoma
Tukwila
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Edmonds
Leavenworth
Renton
Kirkland
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Cle Elum
Marysville
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Federal Way
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Issaquah
Aberdeen

Browse thousands of different options on Cheapflights for your next trip

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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 November 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$617Average$718FlexibilityNo cancel feeOn-time69%

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