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

Currently priced at $354, 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. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from $394 and $437, respectively. Copa Airlines is priced at 36% lower than the current average price of a flight leaving 3 months from now.

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

The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $243. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Port of Spain to Washington, D.C. Dulles Intl Airport for a low price.

What is the cheapest day to fly from Port of Spain to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Port of Spain to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Port of Spain to Washington, D.C. Dulles Intl Airport?

American Airlines, Copa Airlines and United Airlines are the most popular airlines when flying from Port of Spain to Washington, D.C. Dulles Intl Airport.

What is the cheapest day to fly round-trip from Port of Spain to Washington, D.C. Dulles Intl Airport?

It’s generally more expensive to depart on a Wednesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Port of Spain to Washington, D.C. Dulles Intl Airport?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 48 days in advance, which can save you up to 117% on flights from Port of Spain to Washington, D.C. Dulles Intl Airport compared to booking the week you need them. Waiting 48 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $498. For sooner than that we have options available in the next 3 days from $603.

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

Due to multiple factors, expect to potentially pay more when booking in April. For low rates, February can be a great choice for travel to Washington, D.C. Dulles Intl Airport. Flights to Washington, D.C. Dulles Intl Airport from Port of Spain in February are about $528 on average during February, but can be found for as low as $326.

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 eDreams the most. eDreams 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.

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. 3 airlines have flights to Washington, D.C. Dulles Intl from Port of Spain Piarco Intl on a regular basis.

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.

$243+ Flights from Port of Spain to Washington, D.C. Dulles Intl Airport

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1. Tell us where you want to go

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Cheap flight deals from Port of Spain to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$354 (Copa Airlines)
One-way from	$243 (Air Canada)
Popular in	August
Cheapest in	May
Average price	$610

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.

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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. 28% potential increase in price ($217 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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Find 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 April 29, 2025.

Mon 6/23:44 amPOS - IAD

1 stop11h 20mCopa Airlines

Fri 6/64:34 pmIAD - POS

1 stop9h 13mCopa Airlines

Deal found 4/28

$354

Tue 7/2912:30 amPOS - IAD

1 stop11h 02mUnited Airlines

Mon 8/1110:32 pmIAD - POS

1 stop24h 51mUnited Airlines

Deal found 4/28

$394

Wed 5/213:05 pmPOS - IAD

2 stops17h 33mAmerican Airlines

Sun 5/255:26 pmIAD - POS

2 stops20h 39mAmerican Airlines

Deal found 4/28

$437

Mon 6/22:25 amPOS - IAD

2 stops18h 43mAir Canada

Fri 6/62:25 pmIAD - POS

1 stop11h 00mAir Canada

Deal found 4/28

$438

Thu 6/129:10 amPOS - IAD

1 stop9h 20mMultiple Airlines

Thu 6/197:25 pmIAD - POS

1 stop23h 30mMultiple Airlines

Deal found 4/28

$524

Best flights from Port of Spain to Dulles Intl
Discover carefully curated flight deals from Port of Spain to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2025.

Mon 6/23:44 amPOS - IAD

1 stop11h 20mCopa Airlines

Fri 6/64:34 pmIAD - POS

1 stop9h 13mCopa Airlines

Deal found 4/28

$354

Tue 7/2912:30 amPOS - IAD

1 stop11h 02mUnited Airlines

Mon 8/1110:32 pmIAD - POS

1 stop24h 51mUnited Airlines

Deal found 4/28

$394

Wed 5/213:05 pmPOS - IAD

2 stops17h 33mAmerican Airlines

Sun 5/255:26 pmIAD - POS

2 stops20h 39mAmerican Airlines

Deal found 4/28

$437

Mon 6/22:25 amPOS - IAD

2 stops18h 43mAir Canada

Fri 6/62:25 pmIAD - POS

1 stop11h 00mAir Canada

Deal found 4/28

$438

Thu 6/129:10 amPOS - IAD

1 stop9h 20mMultiple Airlines

Thu 6/197:25 pmIAD - POS

1 stop23h 30mMultiple Airlines

Deal found 4/28

$524

Last-minute flights from Port of Spain to Dulles Intl
Discover last-minute flight deals from Port of Spain to Dulles Intl. Data last updated April 29, 2025 and is based on user searches.

Wed 5/712:30 amPOS - IAD

1 stop23h 28mUnited Airlines

Sun 5/115:40 pmIAD - POS

1 stop29h 43mUnited Airlines

Deal found 4/28

$644

Fri 5/162:25 amPOS - IAD

2 stops18h 43mAir Canada

Fri 5/232:25 pmIAD - POS

1 stop11h 00mAir Canada

Deal found 4/28

$447

Fri 5/162:25 amPOS - IAD

2 stops18h 43mMultiple Airlines

Thu 5/229:32 amIAD - POS

1 stop16h 15mMultiple Airlines

Deal found 4/28

$587

Sun 5/183:44 amPOS - IAD

1 stop11h 20mCopa Airlines

Sat 5/244:34 pmIAD - POS

1 stop9h 13mCopa Airlines

Deal found 4/28

$507

Tue 5/2012:30 amPOS - IAD

1 stop23h 28mUnited Airlines

Sun 5/255:50 pmIAD - POS

1 stop29h 33mUnited Airlines

Deal found 4/28

$428

Wed 5/213:05 pmPOS - IAD

2 stops17h 33mAmerican Airlines

Sun 5/255:26 pmIAD - POS

2 stops20h 39mAmerican Airlines

Deal found 4/28

$437

One-way flights from Port of Spain to Dulles Intl
Search for one-way flight options from Port of Spain to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated April 29, 2025.

Mon 5/52:25 amPOS - IAD

2 stops18h 43mAir Canada

Deal found 4/28

$243

Thu 7/312:30 amPOS - IAD

1 stop23h 28mUnited Airlines

Deal found 4/28

$262

Fri 7/47:09 amPOS - IAD

2 stops27h 28mAmerican Airlines

Deal found 4/28

$273

Sat 7/129:30 amPOS - IAD

1 stop10h 48mMultiple Airlines

Deal found 4/28

$690

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Mon 6/2

3:44 am-3:04 pm

1 stop11h 20m

Washington, D.C. Dulles Intl

Fri 6/6

4:34 pm-1:47 am

1 stop9h 13m

$354

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Tue 5/20

12:30 am-11:58 pm

1 stop23h 28m

Washington, D.C. Dulles Intl

Sun 5/25

5:50 pm-11:23 pm

1 stop29h 33m

$428

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Wed 5/21

3:05 pm-8:38 am

2 stops17h 33m

Washington, D.C. Dulles Intl

Sun 5/25

5:26 pm-2:05 pm

2 stops20h 39m

$437

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Mon 6/2

2:25 am-9:08 pm

2 stops18h 43m

Washington, D.C. Dulles Intl

Fri 6/6

9:45 am-1:25 am

2 stops15h 40m

$438

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Thu 6/12

9:10 am-6:30 pm

1 stop9h 20m

Washington, D.C. Dulles Intl

Thu 6/19

7:25 pm-6:55 pm

1 stop23h 30m

$524

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Mon 5/5

2:25 am-9:08 pm

2 stops18h 43m

$243

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Thu 7/3

12:30 am-11:58 pm

1 stop23h 28m

$262

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Fri 7/4

7:09 am-10:37 am

2 stops27h 28m

$273

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Sat 7/12

9:30 am-8:18 pm

1 stop10h 48m

$690

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Compare providers for flights from Port of Spain to Dulles Intl

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 April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
CheapTicketsDeal	Price Accuracy3 stars	Trust 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 eDreams the most. eDreams 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.

Cheapflights Insights

Everything you need to know about your flight from Port of Spain to Washington, D.C. Dulles Intl Airport

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

Currently, August is the cheapest month in which you can book a flight from Port of Spain to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Port of Spain to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). 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 POS to IAD?

It’s typically best to fly out from Port of Spain to Washington, D.C. Dulles Intl Airport at noon. Doing so could potentially save you 22% on the flight price compared to flying in the evening, which is usually more expensive.

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July 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 35.6 F).

Reviews of airlines servicing Dulles Intl

Copa Airlines

7.5

Good

1,410 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Mar 2025

PTY - JFK

There was no chance for me to choose a seat even if I were willing to pay extra for it when I was doing the check-in on line. My seats were the last row on the plane and they didn't have enough food to give me. I had to eat what was left after everybody else had their choice of food. This is unacceptable. Everyone should have a choice. I paid money just like everybody else. Never had this happened on any other airlines even if my seats were last row on the plane.

Copa Airlines

7.5

Good

1,410 reviews

Copa Airlines

7.5

Good

1,410 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Mar 2025

PTY - JFK

United Airlines

7.4

Good

8,696 reviews

Copa Airlines

7.5

Good

1,410 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Mar 2025

PTY - JFK

American Airlines

7.2

Good

10,000 reviews

Copa Airlines

7.5

Good

1,410 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Mar 2025

PTY - JFK

Air Canada

7.0

Good

9,240 reviews

Copa Airlines

7.5

Good

1,410 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Mar 2025

PTY - JFK

Related info for your journey

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. 3 airlines have flights to Washington, D.C. Dulles Intl from Port of Spain Piarco Intl on a regular basis.
What are the cheapest airlines flying from Port of Spain to Washington, D.C. Dulles Intl Airport round-trip?
Currently priced at $354, 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. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from $394 and $437, respectively. Copa Airlines is priced at 36% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Port of Spain to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $243. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Port of Spain to Washington, D.C. Dulles Intl Airport for a low price.
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.
What is the cheapest month to book a flight from Port of Spain to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Port of Spain to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Port of Spain to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). 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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Top 3 airlines flying from Port of Spain to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Copa Airlines	Cheapest$335	Average$496	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$396	Average$527	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$424	Average$648	FlexibilityNo cancel fee	On-time71%

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$243+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Port of Spain to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

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Find flight deals from Port of Spain to Dulles Intl

Cheapest flights from Port of Spain to Dulles IntlExplore 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 April 29, 2025.

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 April 29, 2025.

Cheapflights Fare Finder

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.

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 April.

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.

Cheapflights Insights

Everything you need to know about your flight from Port of Spain to Washington, D.C. Dulles Intl Airport

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

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

Find hourly flight availability from Port of Spain to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

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?

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

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

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

How can I 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?

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

Traveling to a place near Port of Spain?

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Alternative routes for Port of Spain to Dulles Intl

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Top 3 airlines flying from Port of Spain to Dulles Intl

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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 April 29, 2025.