HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Port of Spain

$185+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — POS
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Port of Spain with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$312
(Copa Airlines)

One-way from

$185
(Air Canada)

Popular in

December

Cheapest in

January

Average price

$706
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
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 March 26, 2025.

This Copa Airlines deal was found by Cheapflights users on 3/25. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/299:28 amIAD - POS
1 stop16h 15mCopa Airlines
Mon 5/53:44 amPOS - IAD
1 stop11h 20mCopa Airlines
Deal found 3/25$312
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/285:26 pmIAD - POS
2 stops20h 49mAmerican Airlines
Mon 6/23:05 pmPOS - IAD
2 stops22h 17mAmerican Airlines
Deal found 3/25$373
This United Airlines deal was found by Cheapflights users on 3/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2812:35 pmIAD - POS
1 stop10h 48mUnited Airlines
Wed 4/212:30 amPOS - IAD
1 stop11h 00mUnited Airlines
Deal found 3/25$398
This Gotogate deal was found by Cheapflights users on 3/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/49:45 amIAD - POS
2 stops15h 40mAir Canada
Fri 5/92:25 amPOS - IAD
2 stops18h 43mAir Canada
Deal found 3/25$399
This Booking.com deal was found by Cheapflights users on 3/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/179:45 amIAD - POS
2 stops39h 40mMultiple Airlines
Thu 5/223:44 amPOS - IAD
1 stop24h 36mMultiple Airlines
Deal found 3/25$432

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 March 26, 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

Tue 4/29

9:28 am-1:43 am

1 stop16h 15m

Port of Spain Piarco Intl

Mon 5/5

3:44 am-3:04 pm

1 stop11h 20m

$312

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Wed 5/28

5:26 pm-2:15 pm

2 stops20h 49m

Port of Spain Piarco Intl

Mon 6/2

3:05 pm-1:22 pm

2 stops22h 17m

$373

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Sun 5/4

9:45 am-1:25 am

2 stops15h 40m

Port of Spain Piarco Intl

Fri 5/9

2:25 am-9:08 pm

2 stops18h 43m

$399

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Sat 5/17

9:45 am-1:25 am

2 stops39h 40m

Port of Spain Piarco Intl

Thu 5/22

3:44 am-4:20 am

1 stop24h 36m

$432

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Thu 5/8

6:00 am-11:23 pm

1 stop17h 23m

Port of Spain Piarco Intl

Thu 5/15

12:30 am-10:13 pm

1 stop21h 43m

$453

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Mon 6/9

9:45 am-1:25 am

2 stops15h 40m

$185

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Thu 7/3

4:25 pm-1:47 am

1 stop9h 22m

$189

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Thu 7/24

5:39 pm-2:00 pm

2 stops20h 21m

$203

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Tue 4/15

6:09 am-11:23 pm

1 stop17h 14m

$248

Washington, D.C.Port of Spain

IAD - POS

IADPOS

Washington, D.C. Dulles Intl

Mon 6/9

6:45 pm-4:40 am

3 stops33h 55m

$410

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust 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, 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 March 26, 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.

Rainfall in Port of Spain by month

Plan your trip to Port of Spain by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Port of Spain ranges from 1.2 - 9.8 inches per month. June is typically the wettest month, when rainfall can reach 9.8 in. March is typically the driest time to visit Port of Spain when rainfall is around 1.2 in.

Temperature in Port of Spain by month

Plan your trip to Port of Spain by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Port of Spain, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 March 26, 2025.
Read reviews from past customers who have flown Copa Airlines, United Airlines and American Airlines from Washington, D.C. to Port of Spain. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,393 reviews

Overall

7.6

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Food

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LIM - PTY

you go security buy an expensive bottle of water to take on the plane and then you have to go to another security point where they confiscate your water, the planes left on time and arrived on time. excellent food was mostly tasteless and overheated, no entertainment. wifi was glitchy.
Copa Airlines
7.6
Good
1,393 reviews
Copa Airlines
7.6
Good
1,393 reviews

Overall

7.6

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Food

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LIM - PTY

you go security buy an expensive bottle of water to take on the plane and then you have to go to another security point where they confiscate your water, the planes left on time and arrived on time. excellent food was mostly tasteless and overheated, no entertainment. wifi was glitchy.
United Airlines
7.4
Good
8,608 reviews
Copa Airlines
7.6
Good
1,393 reviews

Overall

7.6

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Food

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LIM - PTY

you go security buy an expensive bottle of water to take on the plane and then you have to go to another security point where they confiscate your water, the planes left on time and arrived on time. excellent food was mostly tasteless and overheated, no entertainment. wifi was glitchy.
American Airlines
7.2
Good
10,000 reviews
Copa Airlines
7.6
Good
1,393 reviews

Overall

7.6

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Food

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LIM - PTY

you go security buy an expensive bottle of water to take on the plane and then you have to go to another security point where they confiscate your water, the planes left on time and arrived on time. excellent food was mostly tasteless and overheated, no entertainment. wifi was glitchy.
Air Canada
7.0
Good
8,967 reviews
Copa Airlines
7.6
Good
1,393 reviews

Overall

7.6

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Food

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LIM - PTY

you go security buy an expensive bottle of water to take on the plane and then you have to go to another security point where they confiscate your water, the planes left on time and arrived on time. excellent food was mostly tasteless and overheated, no entertainment. wifi was glitchy.

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. 3 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.

  • 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. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $373 and $398, respectively. Copa Airlines is 47% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Port of Spain one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $185. Users have also found prices from $248 and $279 on United Airlines and American Airlines, respectively.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 3 airlines flying from Dulles Intl to Port of Spain

Discover the top 3 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$312Average$584FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$355Average$613FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$426Average$654FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.