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Dulles Intl

$217+ Cheap flights from Port of Spain (POS) to Dulles Intl (IAD)

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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
POS — IAD
Mar 12 — Mar 191
Thu 3/12
Thu 3/19
1 adult, Economy
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Cheap flight deals from Port of Spain to Dulles Intl

Cheapest flights from Port of Spain to Dulles Intl
Explore the most affordable flight options available from Port of Spain to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 10, 2026.

This Air Canada deal was found by Cheapflights users on 2/9. 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 3/32:20 am
POS
-
IAD
1 stop19h 06m
Air Canada
Wed 3/1810:09 pm
IAD
-
POS
1 stop26h 11m
Air Canada
Deal found 2/9$373
This Priceline deal was found by Cheapflights users on 2/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/21:20 am
POS
-
IAD
1 stop14h 19m
Air Canada
Mon 4/610:14 pm
IAD
-
POS
1 stop26h 06m
Air Canada
Deal found 2/7$383
This FlightHub deal was found by Cheapflights users on 2/10. 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.
Thu 4/21:20 am
POS
-
IAD
2 stops19h 58m
Air Canada
Sat 4/185:10 pm
IAD
-
POS
2 stops31h 10m
Air Canada
Deal found 2/10$384
This Air Canada deal was found by Cheapflights users on 2/7. 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.
Fri 2/132:20 am
POS
-
IAD
1 stop19h 09m
Air Canada
Fri 2/209:00 am
IAD
-
POS
1 stop15h 20m
Air Canada
Deal found 2/7$386
This Air Canada deal was found by Cheapflights users on 2/9. 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 2/272:20 am
POS
-
IAD
1 stop19h 09m
Air Canada
Wed 3/181:13 pm
IAD
-
POS
2 stops35h 07m
Air Canada
Deal found 2/9$387
This Air Canada deal was found by Cheapflights users on 2/8. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/122:20 am
POS
-
IAD
2 stops14h 51m
Air Canada
Sun 2/159:00 am
IAD
-
POS
1 stop15h 20m
Air Canada
Deal found 2/8$392
This FlightHub deal was found by Cheapflights users on 2/9. 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.
Thu 2/122:20 am
POS
-
IAD
2 stops14h 51m
Air Canada
Sat 2/215:46 pm
IAD
-
POS
2 stops30h 34m
Air Canada
Deal found 2/9$400
This Priceline deal was found by Cheapflights users on 2/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/101:20 am
POS
-
IAD
1 stop14h 19m
Air Canada
Sat 4/2510:08 pm
IAD
-
POS
2 stops26h 12m
Air Canada
Deal found 2/7$414

Find flight deals from Port of Spain to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Port of Spain (POS) to Dulles Intl (IAD). 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 February 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$373
(Air Canada)

One-way from

$217
(Air Canada)

Popular in

January

Cheapest in

April

Average price

$643
Provider with most accurate pricing for Port of Spain Piarco Intl-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Port of Spain Piarco Intl-Washington, D.C. Dulles Intl flights.
Search Deals
From Port of Spain Piarco Intl to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Port of Spain Piarco Intl to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($174 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Port of Spain to Dulles Intl 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 10, 2026.
Use the filters below to find and compare flights from Port of Spain to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Port of Spain

Fly to

Dulles Intl

Route

Depart

Return

Price

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Tue 3/3

2:20 am-4:11 pm

2 stops14h 51m

Washington, D.C. Dulles Intl

Wed 3/18

10:09 pm-12:20 am

1 stop26h 11m

$373

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Fri 2/27

2:20 am-8:29 pm

1 stop19h 09m

Washington, D.C. Dulles Intl

Wed 3/18

10:09 pm-12:20 am

1 stop26h 11m

$373

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Thu 4/2

1:20 am-3:39 pm

1 stop14h 19m

Washington, D.C. Dulles Intl

Mon 4/6

10:14 pm-12:20 am

1 stop26h 06m

$383

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Thu 4/2

1:20 am-4:30 pm

2 stops15h 10m

Washington, D.C. Dulles Intl

Sun 4/19

8:15 am-12:20 am

2 stops16h 05m

$383

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Thu 3/5

2:20 am-4:11 pm

2 stops38h 51m

Washington, D.C. Dulles Intl

Wed 3/18

10:09 pm-12:20 am

1 stop26h 11m

$384

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Fri 4/10

1:20 am-3:39 pm

1 stop14h 19m

Washington, D.C. Dulles Intl

Sat 4/25

10:08 pm-12:20 am

2 stops26h 12m

$414

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Fri 3/13

1:20 am-8:26 pm

1 stop19h 06m

$217

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Thu 3/5

2:20 am-8:26 pm

1 stop19h 06m

$223

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Tue 3/3

2:20 am-9:21 pm

1 stop20h 01m

$223

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Wed 5/6

9:10 am-8:56 am

2 stops23h 46m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 11 results
1
2

Compare providers for flights from Port of Spain to Dulles Intl

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 Dulles Intl in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Port of Spain-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Port of Spain-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Port of Spain-Washington, D.C. Dulles Intl Airport 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 Port of Spain-Washington, D.C. Dulles Intl Airport 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 Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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 Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated February 10, 2026.
Peruse reviews from past customers who have flown with Copa Airlines and United Airlines from Port of Spain to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.5
Good
1,557 reviews

Food

6.8

Boarding

7.8

Entertainment

6.8

Comfort

7.4

Crew

8.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.
Copa Airlines
7.5
Good
1,557 reviews
Copa Airlines
7.5
Good
1,557 reviews

Food

6.8

Boarding

7.8

Entertainment

6.8

Comfort

7.4

Crew

8.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.
United Airlines
7.4
Good
9,267 reviews
Copa Airlines
7.5
Good
1,557 reviews

Food

6.8

Boarding

7.8

Entertainment

6.8

Comfort

7.4

Crew

8.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.

Related info for your journey

Find useful and relevant information for your journey from Port of Spain to Dulles Intl. 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, D.C. Dulles Intl?

    For a flight from Port of Spain to Washington, D.C. Dulles Intl, you will be flying from Piarco Intl. Port of Spain Piarco Intl (POS) is just 12.6 mi from the center of the city. Piarco Intl is the only Port of Spain airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 2 airlines have flights to Washington, D.C. Dulles Intl from Port of Spain Piarco Intl on a regular basis.

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

    There are many flights that can get you from Port of Spain to Washington, D.C. Dulles Intl Airport in 14h 51m. Fly via Air Canada to get the fastest option. There are 2195 mi between Port of Spain and Washington, D.C. Dulles Intl Airport.

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

    Currently priced at $222, Copa Airlines will fly you from Port of Spain to Washington, D.C. Dulles Intl Airport and back. In addition to Copa Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $404. Copa Airlines is priced at 62% 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 Dulles Intl that include hotel bookings?

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

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

    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 Dulles Intl.

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

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

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Laurel
Linthicum Heights
Rockville
Upper Marlboro
Manassas
Bowie
Largo
McLean
Clinton
Towson

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Alternative routes for Port of Spain to Dulles Intl

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

Top 2 airlines flying from Port of Spain to Dulles Intl

Discover the top 2 airlines that operate flights from Port of Spain to Dulles Intl. 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 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$222Average$448FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$404Average$549FlexibilityNo cancel feeOn-time69%

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