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Port of Spain

$175+ Cheap flights from Dulles Intl (IAD) to Port of Spain (POS)

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — POS
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Dulles Intl to Port of Spain

Cheapest flights from Dulles Intl to Port of Spain
Explore the most affordable flight options available from Dulles Intl to Port of Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Air Canada deal was found by Cheapflights users on 1/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/19:00 am
IAD
-
POS
1 stop15h 20m
Air Canada
Thu 3/52:20 am
POS
-
IAD
1 stop14h 26m
Air Canada
Deal found 1/25$448
This Air Canada deal was found by Cheapflights users on 1/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/69:45 am
IAD
-
POS
2 stops14h 35m
Air Canada
Sun 3/81:20 am
POS
-
IAD
1 stop19h 06m
Air Canada
Deal found 1/25$451
This Air Canada deal was found by Cheapflights users on 1/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/309:00 am
IAD
-
POS
1 stop15h 20m
Air Canada
Sun 2/12:20 am
POS
-
IAD
1 stop14h 29m
Air Canada
Deal found 1/25$454
This Air Canada deal was found by Cheapflights users on 1/26. 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.
Thu 1/299:00 am
IAD
-
POS
1 stop15h 20m
Air Canada
Fri 1/302:20 am
POS
-
IAD
1 stop19h 06m
Air Canada
Deal found 1/26$458
This FlightHub deal was found by Cheapflights users on 1/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/259:55 am
IAD
-
POS
2 stops38h 25m
Air Canada
Fri 4/31:20 am
POS
-
IAD
1 stop14h 19m
Air Canada
Deal found 1/26$461
This FlightHub deal was found by Cheapflights users on 1/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/319:45 am
IAD
-
POS
2 stops38h 35m
Air Canada
Thu 3/121:20 am
POS
-
IAD
2 stops19h 34m
Air Canada
Deal found 1/25$464
This Air Canada deal was found by Cheapflights users on 1/26. 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.
Sun 2/19:00 am
IAD
-
POS
1 stop15h 20m
Air Canada
Sun 2/82:20 am
POS
-
IAD
1 stop19h 09m
Air Canada
Deal found 1/26$468
This Air Canada deal was found by Cheapflights users on 1/26. 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 4/219:00 am
IAD
-
POS
1 stop15h 20m
Air Canada
Sun 4/261:20 am
POS
-
IAD
2 stops18h 20m
Air Canada
Deal found 1/26$471
This Air Canada deal was found by Cheapflights users on 1/26. 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 4/219:55 am
IAD
-
POS
2 stops14h 25m
Air Canada
Thu 4/231:20 am
POS
-
IAD
2 stops18h 20m
Air Canada
Deal found 1/26$474
This Copa Airlines deal was found by Cheapflights users on 1/24. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/48:29 am
IAD
-
POS
1 stop16h 15m
Copa Airlines
Wed 2/112:16 pm
POS
-
IAD
1 stop10h 16m
Copa Airlines
Deal found 1/24$475
This Air Canada deal was found by Cheapflights users on 1/26. 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.
Fri 1/309:00 am
IAD
-
POS
1 stop15h 20m
Air Canada
Fri 3/201:20 am
POS
-
IAD
1 stop14h 26m
Air Canada
Deal found 1/26$478

Find flight deals from Dulles Intl to Port of Spain

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$448
(Air Canada)

One-way from

$175
(Kiwi.com)

Popular in

March

Cheapest in

November

Average price

$382
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Port of Spain Piarco Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Port of Spain Piarco Intl flights.
Search Deals
From Washington, D.C. Dulles Intl to Port of Spain Piarco Intl
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Port of Spain Piarco Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 January 26, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Port of Spain that are best for you.

Fly from

Dulles Intl

Fly to

Port of Spain

Route

Depart

Return

Price

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Fri 5/8

9:55 am-12:15 am

1 stop14h 20m

Port of Spain Piarco Intl

Sun 5/10

1:25 am-6:58 pm

2 stops17h 33m

$451

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Mon 2/23

3:35 pm-1:44 am

1 stop9h 09m

Port of Spain Piarco Intl

Sun 3/1

3:46 am-2:00 pm

1 stop11h 14m

$496

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Wed 3/25

12:50 pm-11:23 pm

1 stop10h 33m

Port of Spain Piarco Intl

Sun 3/29

12:30 am-8:56 pm

1 stop20h 26m

$530

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Fri 4/10

2:21 am-1:10 pm

1 stop10h 49m

Port of Spain Piarco Intl

Sat 4/18

2:17 pm-4:22 am

1 stop14h 05m

$538

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Thu 4/23

9:32 am-1:40 am

1 stop16h 08m

Port of Spain Piarco Intl

Sat 4/25

3:44 am-3:06 pm

1 stop11h 22m

$538

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Tue 3/24

9:29 am-1:46 am

1 stop16h 17m

Port of Spain Piarco Intl

Mon 3/30

3:46 am-3:02 pm

1 stop11h 16m

$538

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Fri 2/27

1:18 am-1:11 pm

1 stop10h 53m

Port of Spain Piarco Intl

Sat 3/7

3:46 am-3:00 pm

1 stop11h 14m

$541

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Mon 6/1

6:30 am-11:23 pm

1 stop16h 53m

Port of Spain Piarco Intl

Sat 6/6

12:30 am-6:41 pm

1 stop18h 11m

$550

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Sat 3/14

6:00 am-11:23 pm

1 stop17h 23m

Port of Spain Piarco Intl

Fri 3/20

12:30 am-11:26 am

1 stop10h 56m

$570

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Tue 4/7

2:21 am-1:10 pm

1 stop10h 49m

Port of Spain Piarco Intl

Mon 4/13

3:44 am-3:06 pm

1 stop11h 22m

$583

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 17 results
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Compare providers for flights from Dulles Intl 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 Dulles Intl to Port of Spain in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star

*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 Washington, D.C. Dulles Intl Airport-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 Washington, D.C. Dulles Intl Airport-Port of Spain flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Port of Spain flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-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 Washington, D.C. Dulles Intl Airport-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 Dulles Intl to Port of Spain

Have a flexible travel schedule? Discover the best time to fly to Port of Spain from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Port of Spain

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Port of Spain?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Port of Spain (average of $196). Flying from Washington, D.C. Dulles Intl Airport to Port of Spain in December is currently the most expensive (average of $757). 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.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Port of Spain?

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 January 26, 2026.
See what other customers who have flown with Copa Airlines and United Airlines from Washington, D.C. Dulles Intl Airport to Port of Spain have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,558 reviews

Food

6.8

Entertainment

6.8

Overall

7.6

Crew

8.1

Boarding

7.8

Comfort

7.4

Reviews

1 / 20
6.0
Good

Maria,Dec 2025

MIA - PTY

The second flight to salta Argentina was terrible..the plain is old no entertainment no good food no nothing
Copa Airlines
7.6
Good
1,558 reviews
Copa Airlines
7.6
Good
1,558 reviews

Food

6.8

Entertainment

6.8

Overall

7.6

Crew

8.1

Boarding

7.8

Comfort

7.4

Reviews

1 / 20
6.0
Good

Maria,Dec 2025

MIA - PTY

The second flight to salta Argentina was terrible..the plain is old no entertainment no good food no nothing
United Airlines
7.4
Good
9,199 reviews
Copa Airlines
7.6
Good
1,558 reviews

Food

6.8

Entertainment

6.8

Overall

7.6

Crew

8.1

Boarding

7.8

Comfort

7.4

Reviews

1 / 20
6.0
Good

Maria,Dec 2025

MIA - PTY

The second flight to salta Argentina was terrible..the plain is old no entertainment no good food no nothing

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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.

  • What airport do you fly into for flights to Port of Spain from Washington, D.C. Dulles Intl?

    Port of Spain Piarco Intl (POS), located 12.6 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Port of Spain. 2 airlines have flights to Piarco Intl from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Port of Spain Piarco Intl should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Port of Spain?

    Departing from Washington, D.C. Dulles Intl Airport to Port of Spain will take you 9h 09m. Washington, D.C. Dulles Intl Airport and Port of Spain are separated by a distance of 2195 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Port of Spain round-trip?

    Currently priced at $283, United Airlines will fly you from Washington, D.C. Dulles Intl Airport to Port of Spain and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Copa Airlines for as low as $312. United Airlines is 45% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

  • How can I find direct flights from Dulles Intl 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 Dulles Intl to Port of Spain.

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Port of Spain?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Port of Spain (average of $196). Flying from Washington, D.C. Dulles Intl Airport to Port of Spain in December is currently the most expensive (average of $757). 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 Dulles Intl to Port of Spain

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Port of Spain flights
Baltimore to Port of Spain flights
Reagan-National to Scarborough flights
Dulles Intl to Scarborough flights
Baltimore to Scarborough flights

Top 2 airlines flying from Dulles Intl to Port of Spain

Discover the top 2 airlines that operate flights from Dulles Intl 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$283Average$458FlexibilityNo cancel feeOn-time69%
Copa AirlinesCheapest$312Average$478FlexibilityNo cancel feeOn-time70%

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