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

Currently priced at $370, 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 $387 and $416, respectively. Copa Airlines is priced at 31% 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 $254. 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.

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.

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).

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 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 December. 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 $504 on average during February, but can be found for as low as $326.

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.

$254+ Flights from Port of Spain to Washington, D.C. Dulles Intl Airport

Q: 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.

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Cheap flight deals from Port of Spain to Dulles Intl

Round-trip from	$370 (Copa Airlines)
One-way from	$254 (Air Canada)
Popular in	August
Cheapest in	April
Average price	$654

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

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Highest demand for flights based on searches. 30% potential increase in price ($242 potential increase over avg. RT price).

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Cheapest flight prices on average. 5% potential price decrease ($30 potential savings vs. average RT price).

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Average for round-trip flights in July 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 July 2, 2025.

Fri 10/172:39 pmPOS - IAD

1 stop13h 43mCopa Airlines

Fri 10/312:13 amIAD - POS

1 stop11h 04mCopa Airlines

Deal found 7/2

$370

Wed 12/31:30 amPOS - IAD

1 stop21h 44mUnited Airlines

Wed 12/3110:06 pmIAD - POS

1 stop25h 17mUnited Airlines

Deal found 7/1

$387

Fri 9/123:25 pmPOS - IAD

2 stops18h 42mAmerican Airlines

Tue 9/237:21 pmIAD - POS

2 stops18h 55mAmerican Airlines

Deal found 7/2

$416

Sun 7/202:20 amPOS - IAD

1 stop11h 22mAir Canada

Mon 7/289:35 amIAD - POS

2 stops15h 45mAir Canada

Deal found 6/30

$460

Wed 8/202:38 pmPOS - IAD

2 stops28h 46mMultiple Airlines

Thu 8/282:25 amIAD - POS

1 stop10h 52mMultiple Airlines

Deal found 6/30

$571

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 July 2, 2025.

Fri 10/172:39 pmPOS - IAD

1 stop13h 43mCopa Airlines

Fri 10/312:13 amIAD - POS

1 stop11h 04mCopa Airlines

Deal found 7/2

$370

Wed 12/31:30 amPOS - IAD

1 stop21h 44mUnited Airlines

Wed 12/3110:06 pmIAD - POS

1 stop25h 17mUnited Airlines

Deal found 7/1

$387

Fri 9/123:25 pmPOS - IAD

2 stops18h 42mAmerican Airlines

Tue 9/237:21 pmIAD - POS

2 stops18h 55mAmerican Airlines

Deal found 7/2

$416

Sun 7/202:20 amPOS - IAD

1 stop11h 22mAir Canada

Mon 7/289:35 amIAD - POS

2 stops15h 45mAir Canada

Deal found 6/30

$460

Wed 8/202:38 pmPOS - IAD

2 stops28h 46mMultiple Airlines

Thu 8/282:25 amIAD - POS

1 stop10h 52mMultiple Airlines

Deal found 6/30

$571

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 July 2, 2025 and is based on user searches.

Wed 7/912:30 amPOS - IAD

1 stop21h 48mUnited Airlines

Wed 9/2410:05 pmIAD - POS

1 stop25h 18mUnited Airlines

Deal found 7/2

$404

Thu 7/103:05 pmPOS - IAD

2 stops21h 44mAmerican Airlines

Wed 8/207:25 pmIAD - POS

2 stops26h 11mAmerican Airlines

Deal found 7/2

$520

Thu 7/108:30 amPOS - IAD

3 stops25h 07mMultiple Airlines

Sun 9/219:35 amIAD - POS

2 stops15h 50mMultiple Airlines

Deal found 7/2

$714

Fri 7/112:35 pmPOS - IAD

1 stop10h 45mCopa Airlines

Sat 8/234:34 pmIAD - POS

1 stop9h 12mCopa Airlines

Deal found 7/2

$667

Fri 7/112:20 amPOS - IAD

1 stop11h 22mAir Canada

Sat 8/239:35 amIAD - POS

2 stops39h 45mAir Canada

Deal found 7/2

$1,064

Sun 7/202:20 amPOS - IAD

1 stop11h 22mAir Canada

Mon 7/289:35 amIAD - POS

2 stops15h 45mAir Canada

Deal found 6/30

$460

Wed 8/62:38 pmPOS - IAD

1 stop13h 40mCopa Airlines

Thu 8/212:25 amIAD - POS

1 stop10h 52mCopa Airlines

Deal found 6/30

$589

Thu 8/143:35 pmPOS - IAD

2 stops18h 18mAmerican Airlines

Sun 9/75:26 pmIAD - POS

2 stops20h 50mAmerican Airlines

Deal found 6/30

$459

Wed 8/202:38 pmPOS - IAD

2 stops28h 46mMultiple Airlines

Thu 8/282:25 amIAD - POS

1 stop10h 52mMultiple Airlines

Deal found 6/30

$571

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 July 2, 2025.

Mon 7/212:20 amPOS - IAD

1 stop11h 59mAir Canada

Deal found 6/30

$254

Sat 9/1312:30 amPOS - IAD

1 stop10h 58mUnited Airlines

Deal found 6/30

$269

Sun 9/143:25 pmPOS - IAD

2 stops18h 42mAmerican Airlines

Deal found 6/30

$279

Sun 7/133:48 amPOS - IAD

1 stop11h 16mCopa Airlines

Deal found 6/30

$288

Thu 7/106:25 pmPOS - IAD

1 stop26h 48mMultiple Airlines

Deal found 7/2

$356

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

Fri 10/17

2:39 pm-4:22 am

1 stop13h 43m

Washington, D.C. Dulles Intl

Fri 10/31

2:13 am-1:17 pm

1 stop11h 04m

$370

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Wed 12/3

1:30 am-10:14 pm

1 stop21h 44m

Washington, D.C. Dulles Intl

Wed 12/31

10:06 pm-12:23 am

1 stop25h 17m

$387

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Fri 9/12

3:25 pm-10:07 am

2 stops18h 42m

Washington, D.C. Dulles Intl

Tue 9/23

7:21 pm-2:16 pm

2 stops18h 55m

$416

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Sun 7/20

2:20 am-1:42 pm

1 stop11h 22m

Washington, D.C. Dulles Intl

Mon 7/28

9:35 am-1:20 am

2 stops15h 45m

$460

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Wed 8/20

2:38 pm-7:24 pm

2 stops28h 46m

Washington, D.C. Dulles Intl

Thu 8/28

2:25 am-1:17 pm

1 stop10h 52m

$571

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Mon 7/21

2:20 am-2:19 pm

1 stop11h 59m

$254

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Sat 9/13

12:30 am-11:28 am

1 stop10h 58m

$269

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Sun 9/14

3:25 pm-10:07 am

2 stops18h 42m

$279

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Sun 7/13

3:48 am-3:04 pm

1 stop11h 16m

$288

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Thu 7/10

6:25 pm-9:13 pm

1 stop26h 48m

$356

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 July is currently the most expensive (average of $345). 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.

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

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with Copa Airlines, United Airlines, and American 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

1,465 reviews

Reviews

1 / 20

4.0

Okay

Paul,Jun 2025

PTY - MIA

The boarding process was terrible. No one followed the group numbers. Everyone got up and stood in the tiles upon landing. People kept getting up during the meal and beverage service to go the bathrooms, the crew had to go back and forth in the isles, the service took forever.

Copa Airlines

7.5

Good

1,465 reviews

Copa Airlines

7.5

Good

1,465 reviews

Reviews

1 / 20

4.0

Okay

Paul,Jun 2025

PTY - MIA

United Airlines

7.4

Good

8,861 reviews

Copa Airlines

7.5

Good

1,465 reviews

Reviews

1 / 20

4.0

Okay

Paul,Jun 2025

PTY - MIA

American Airlines

7.2

Good

10,000 reviews

Copa Airlines

7.5

Good

1,465 reviews

Reviews

1 / 20

4.0

Okay

Paul,Jun 2025

PTY - MIA

Air Canada

7.1

Good

9,669 reviews

Copa Airlines

7.5

Good

1,465 reviews

Reviews

1 / 20

4.0

Okay

Paul,Jun 2025

PTY - MIA

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 $370, 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 $387 and $416, respectively. Copa Airlines is priced at 31% 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 $254. 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 July is currently the most expensive (average of $345). 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.

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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$458	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$395	Average$471	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$424	Average$648	FlexibilityNo cancel fee	On-time71%

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$254+ 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 7/21. 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

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Cheap flight deals from Port of Spain to Dulles Intl

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Popular in

Cheapest in

Average price

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 July 2, 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 July 2, 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.

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 July 2, 2025.

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

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 July 2, 2025.