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$353+ Cheap flights from Port of Spain (POS) to Washington

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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
POS — SEA
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Port of Spain to Washington

Cheapest flights from Port of Spain to Washington
Explore the most affordable flight options available from Port of Spain to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This United Airlines deal was found by Cheapflights users on 2/3. 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 5/1912:30 am
POS
-
SEA
1 stop25h 22m
United Airlines
Sat 5/305:00 am
SEA
-
POS
1 stop15h 23m
United Airlines
Deal found 2/3$659
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/1812:30 am
POS
-
SEA
1 stop15h 37m
United Airlines
Thu 3/262:15 pm
SEA
-
POS
1 stop30h 08m
United Airlines
Deal found 2/2$662
This United Airlines deal was found by Cheapflights users on 2/3. 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 am
POS
-
SEA
1 stop21h 55m
United Airlines
Tue 3/2411:59 pm
SEA
-
POS
1 stop20h 24m
United Airlines
Deal found 2/3$663
This American Airlines deal was found by Cheapflights users on 2/2. 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 pm
POS
-
SEA
2 stops22h 41m
American Airlines
Tue 3/246:22 pm
SEA
-
POS
2 stops16h 48m
American Airlines
Deal found 2/2$667
This Gotogate deal was found by Cheapflights users on 2/4. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/82:20 am
POS
-
SEA
2 stops34h 55m
Air Canada
Sun 2/155:50 am
SEA
-
POS
2 stops15h 30m
Air Canada
Deal found 2/4$680
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/41:30 am
POS
-
SEA
1 stop21h 55m
United Airlines
Thu 3/126:45 am
SEA
-
POS
1 stop13h 38m
United Airlines
Deal found 2/2$693
This Gotogate deal was found by Cheapflights users on 2/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/271:20 am
POS
-
SEA
1 stop23h 56m
Air Canada
Tue 4/75:40 am
SEA
-
POS
2 stops15h 40m
Air Canada
Deal found 2/2$736
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/2712:30 am
POS
-
SEA
2 stops23h 40m
United Airlines
Tue 4/711:35 am
SEA
-
POS
2 stops32h 48m
United Airlines
Deal found 2/2$809
This Mytrip deal was found by Cheapflights users on 2/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/41:55 am
POS
-
SEA
3 stops25h 01m
Multiple Airlines
Thu 3/125:40 am
SEA
-
POS
2 stops15h 40m
Multiple Airlines
Deal found 2/2$956

Find flight deals from Port of Spain to Washington

Keep the following information in mind while searching for Port of Spain to Washington flight deals. Data was last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$659
(United Airlines)

One-way from

$353
(Kiwi.com)

Popular in

November

Cheapest in

October
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 Washington
Search Deals
One-way flight from Port of Spain Piarco Intl to Washington
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($9 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Port of Spain to Washington 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 February 4, 2026.
Use the filters below to find and compare flights from Port of Spain to Washington that are best for you.

Fly from

Port of Spain

Fly to

Washington

Route

Depart

Return

Price

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Mon 6/29

2:00 am-2:16 pm

1 stop15h 16m

Seattle/Tacoma Intl

Sat 7/4

2:36 pm-11:23 pm

2 stops29h 47m

$659

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Wed 3/4

1:30 am-7:03 pm

2 stops21h 33m

Seattle/Tacoma Intl

Thu 3/12

7:10 pm-11:23 pm

2 stops25h 13m

$659

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Tue 5/19

12:30 am-10:52 pm

1 stop25h 22m

Seattle/Tacoma Intl

Sat 5/30

5:00 am-11:23 pm

1 stop15h 23m

$659

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Tue 5/19

12:30 am-10:52 pm

1 stop25h 22m

Seattle/Tacoma Intl

Fri 5/29

5:00 am-11:23 pm

1 stop15h 23m

$659

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Wed 3/18

12:30 am-11:16 pm

2 stops25h 46m

Seattle/Tacoma Intl

Thu 3/26

6:45 am-11:23 pm

1 stop13h 38m

$662

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Wed 3/18

9:10 am-5:39 pm

3 stops59h 29m

$353

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Tue 3/17

12:30 am-1:07 pm

1 stop15h 37m

$358

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Wed 3/18

12:30 am-7:28 pm

2 stops21h 58m

$358

Port of SpainSeattle

POS - SEA

POSSEA

Port of Spain Piarco Intl

Fri 7/3

12:30 am-7:12 pm

1 stop21h 42m

$358

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

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

Have a flexible travel schedule? Discover the best time to fly to Washington 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 Washington
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated February 4, 2026.
See what other customers who have flown with United Airlines from Port of Spain to Washington have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,236 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,236 reviews
United Airlines
7.4
Good
9,236 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

Find useful and relevant information for your journey from Port of Spain to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Port of Spain to Washington?

    Most people fly from Port of Spain Piarco Intl (POS) if they book a flight from Port of Spain to Washington. Port of Spain Piarco Intl is conveniently located just 12.6 mi from Port of Spain’s city center.

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

    A quick flight from Port of Spain to State of Washington can take about 15h 16m. United Airlines provides one of the quickest options available for as low as $659. There are 4332 mi between Port of Spain and State of Washington.

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

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

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

    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 Washington.

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

    Yes. Cheapflights offers flight deals from Port of Spain to Washington 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

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Alternative routes for Port of Spain to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Port of Spain to Washington

Discover the top airline that operate flights from Port of Spain to Washington. 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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$631Average$750FlexibilityNo cancel feeOn-time69%

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