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$515+ Cheap flights from Port of Spain (POS) to Seattle (SEA)

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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
POS — SEA
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$515
(United Airlines)

Popular in

November

Cheapest in

May

Average price

$753
From Port of Spain Piarco Intl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 0% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 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 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 September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 11/191:30 amPOS - SEA
2 stops20h 40mUnited Airlines
Thu 11/277:10 amSEA - POS
1 stop13h 13mUnited Airlines
Deal found 9/16$516
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/1012:30 amPOS - SEA
3 stops23h 45mUnited Airlines
Tue 10/143:28 pmSEA - POS
2 stops28h 55mUnited Airlines
Deal found 9/15$520
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/201:30 amPOS - SEA
1 stop25h 16mUnited Airlines
Thu 11/2712:39 pmSEA - POS
1 stop31h 44mUnited Airlines
Deal found 9/15$537
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/117:00 amPOS - SEA
1 stop19h 35mAmerican Airlines
Tue 10/148:49 pmSEA - POS
1 stop14h 36mAmerican Airlines
Deal found 9/14$659
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 11/207:19 amPOS - SEA
1 stop20h 07mAmerican Airlines
Thu 11/2710:08 pmSEA - POS
1 stop13h 22mAmerican Airlines
Deal found 9/16$710

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 September 16, 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 2/26

1:30 am-1:10 pm

1 stop15h 40m

Seattle/Tacoma Intl

Tue 3/3

6:45 am-12:23 am

1 stop13h 38m

$515

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Wed 11/19

1:30 am-6:10 pm

2 stops20h 40m

Seattle/Tacoma Intl

Thu 11/27

7:10 am-12:23 am

1 stop13h 13m

$516

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Fri 10/10

12:30 am-7:16 pm

1 stop21h 46m

Seattle/Tacoma Intl

Tue 10/14

5:26 pm-11:23 pm

2 stops26h 57m

$520

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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.

Cheapflights Insights

Everything you need to know about your flight from Port of Spain to Seattle

How much does it cost to fly round-trip from Port of Spain to Seattle?

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 September 16, 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
8,924 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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 40m. 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 24% 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.

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

    Currently, January is the cheapest month in which you can book a flight from Port of Spain to Seattle (average of $238). Flying from Port of Spain to Seattle in June is currently the most expensive (average of $387). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
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Ocean Shores
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Leavenworth
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Olympia
Kent
Federal Way
Cle Elum
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Shoreline

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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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$617Average$718FlexibilityNo cancel feeOn-time69%

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