Port of Spain

$173+ 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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — POS
Oct 11 — Oct 181
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Cheap 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 September 11, 2025.

Round-trip from

$352
(Copa Airlines)

One-way from

$173
(Copa Airlines)

Popular in

March

Cheapest in

November

Average price

$419
From Washington, D.C. Dulles Intl to Port of Spain Piarco Intl
One-way flight from Washington, D.C. Dulles Intl to Port of Spain Piarco Intl
Highest demand for flights based on searches. 16% potential increase in price ($112 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($34 potential savings vs. average RT price).
Average for round-trip flights in September 2025

Find 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 September 11, 2025.

This Copa Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 10/232:25 amIAD - POS
1 stop10h 52mCopa Airlines
Mon 11/32:26 pmPOS - IAD
1 stop13h 56mCopa Airlines
Deal found 9/11$352
This Copa Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 10/139:34 amIAD - POS
1 stop16h 12mCopa Airlines
Tue 10/143:51 amPOS - IAD
1 stop11h 14mCopa Airlines
Deal found 9/11$367
This Copa Airlines deal was found by Cheapflights users on 9/10. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/144:41 pmIAD - POS
1 stop9h 05mCopa Airlines
Wed 10/222:40 pmPOS - IAD
1 stop9h 50mCopa Airlines
Deal found 9/10$372
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:01 amIAD - POS
1 stop17h 22mUnited Airlines
Tue 10/2812:30 amPOS - IAD
1 stop20h 21mUnited Airlines
Deal found 9/9$378
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Tue 10/144:41 pmIAD - POS
1 stop9h 05mCopa Airlines
Wed 10/152:40 pmPOS - IAD
1 stop9h 50mCopa Airlines
Deal found 9/11$380
This American Airlines deal was found by Cheapflights users on 9/11. 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 10/288:09 amIAD - POS
2 stops13h 11mAmerican Airlines
Mon 11/34:30 pmPOS - IAD
2 stops18h 49mAmerican Airlines
Deal found 9/11$383
This United Airlines deal was found by Cheapflights users on 9/11. 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 11/66:00 amIAD - POS
1 stop17h 23mUnited Airlines
Sun 11/91:30 amPOS - IAD
1 stop21h 42mUnited Airlines
Deal found 9/11$386
This Copa Airlines deal was found by Cheapflights users on 9/10. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/72:25 amIAD - POS
1 stop10h 52mCopa Airlines
Sat 10/113:51 amPOS - IAD
1 stop11h 14mCopa Airlines
Deal found 9/10$387
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:00 amIAD - POS
1 stop17h 23mUnited Airlines
Mon 11/101:30 amPOS - IAD
1 stop20h 21mUnited Airlines
Deal found 9/10$388
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sat 10/114:41 pmIAD - POS
1 stop9h 05mCopa Airlines
Fri 10/172:40 pmPOS - IAD
1 stop9h 50mCopa Airlines
Deal found 9/11$392
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Tue 10/284:41 pmIAD - POS
1 stop20h 36mCopa Airlines
Sun 11/23:48 amPOS - IAD
1 stop24h 34mCopa Airlines
Deal found 9/11$393
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sat 10/114:41 pmIAD - POS
1 stop9h 05mCopa Airlines
Wed 10/152:40 pmPOS - IAD
1 stop9h 50mCopa Airlines
Deal found 9/11$397

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 September 11, 2025.
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

Thu 10/16

4:41 pm-1:46 am

1 stop9h 05m

Port of Spain Piarco Intl

Wed 10/29

3:51 am-3:05 pm

1 stop11h 14m

$367

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Wed 10/22

10:45 am-11:23 pm

1 stop12h 38m

Port of Spain Piarco Intl

Sun 10/26

12:30 am-8:51 pm

1 stop20h 21m

$378

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Thu 10/23

9:34 am-1:46 am

1 stop16h 12m

Port of Spain Piarco Intl

Wed 10/29

3:51 am-3:05 pm

1 stop11h 14m

$404

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Thu 1/29

1:12 am-1:11 pm

1 stop10h 59m

Port of Spain Piarco Intl

Mon 3/2

3:46 am-2:02 pm

1 stop11h 16m

$404

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Tue 10/14

4:41 pm-1:46 am

1 stop9h 05m

Port of Spain Piarco Intl

Sat 10/18

3:51 am-3:05 pm

1 stop11h 14m

$404

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Fri 10/3

10:45 am-11:23 pm

1 stop12h 38m

Port of Spain Piarco Intl

Sun 10/5

12:30 am-7:03 pm

1 stop18h 33m

$408

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Thu 10/2

4:41 pm-1:46 am

1 stop9h 05m

Port of Spain Piarco Intl

Sat 10/4

3:51 am-3:05 pm

1 stop11h 14m

$411

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Tue 10/7

2:25 am-1:17 pm

1 stop10h 52m

Port of Spain Piarco Intl

Sat 10/11

3:51 am-3:05 pm

1 stop11h 14m

$411

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Thu 10/30

12:55 pm-11:23 pm

1 stop10h 28m

Port of Spain Piarco Intl

Sun 11/2

1:30 am-8:51 pm

1 stop20h 21m

$423

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Sat 11/1

4:32 pm-1:48 am

1 stop9h 16m

Port of Spain Piarco Intl

Mon 11/3

3:48 am-2:02 pm

1 stop11h 14m

$448

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 21 results
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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, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Port of Spain (average of $435). Flying from Washington, D.C. Dulles Intl Airport to Port of Spain in December is currently the most expensive (average of $710). 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.

What is the cheapest time of day to fly from IAD to POS?

Find hourly flight availability from Dulles Intl to Port of Spain. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 31% on flights from Washington, D.C. Dulles Intl Airport to Port of Spain by exploring options for tickets in the evening.

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 September 11, 2025.
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.

Comfort

7.4

Entertainment

6.8

Overall

7.6

Food

6.8

Crew

8.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip

Comfort

7.4

Entertainment

6.8

Overall

7.6

Food

6.8

Crew

8.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip

Comfort

7.4

Entertainment

6.8

Overall

7.6

Food

6.8

Crew

8.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip

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 05m. 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 $312, Copa Airlines will fly you from Washington, D.C. Dulles Intl Airport to Port of Spain 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 $367. Copa 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, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Port of Spain (average of $435). Flying from Washington, D.C. Dulles Intl Airport to Port of Spain in December is currently the most expensive (average of $710). 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.

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$312Average$545FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$367Average$578FlexibilityNo cancel feeOn-time69%

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