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

Currently priced at $335, 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 $395. Copa Airlines is priced at 31% lower than the current average price of a flight leaving 3 months from now.

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 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.

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 $487 on average during February, but can be found for as low as $324.

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.

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.

$230+ Cheap Flights from Port of Spain to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Port of Spain to Dulles Intl

Round-trip from	$383 (Copa Airlines)
One-way from	$230 (Copa Airlines)
Popular in	August
Cheapest in	April
Average price	$591

From Port of Spain Piarco Intl to Washington, D.C. Dulles Intl

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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. 24% potential increase in price ($161 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).

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Average for round-trip flights in September 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 September 15, 2025.

Wed 10/292:27 pmPOS - IAD

1 stop13h 53mCopa Airlines

Sun 11/21:13 amIAD - POS

1 stop11h 04mCopa Airlines

Deal found 9/12

$383

Wed 10/292:27 pmPOS - IAD

1 stop10h 06mCopa Airlines

Sun 11/91:13 amIAD - POS

1 stop11h 04mCopa Airlines

Deal found 9/12

$399

Wed 10/222:40 pmPOS - IAD

1 stop9h 50mCopa Airlines

Thu 10/232:25 amIAD - POS

1 stop10h 52mCopa Airlines

Deal found 9/12

$401

Tue 10/2812:30 amPOS - IAD

1 stop10h 58mUnited Airlines

Thu 11/610:10 pmIAD - POS

1 stop25h 13mUnited Airlines

Deal found 9/12

$407

Tue 11/181:30 amPOS - IAD

1 stop20h 21mUnited Airlines

Thu 12/46:00 amIAD - POS

1 stop17h 23mUnited Airlines

Deal found 9/12

$410

Fri 11/211:30 amPOS - IAD

1 stop21h 42mUnited Airlines

Tue 12/26:00 amIAD - POS

1 stop17h 23mUnited Airlines

Deal found 9/12

$413

Thu 10/303:25 pmPOS - IAD

2 stops18h 30mAmerican Airlines

Fri 11/75:35 pmIAD - POS

2 stops20h 55mAmerican Airlines

Deal found 9/12

$415

Fri 10/312:30 amPOS - IAD

1 stop23h 21mUnited Airlines

Thu 11/66:00 amIAD - POS

1 stop17h 23mUnited Airlines

Deal found 9/13

$424

Tue 9/3012:30 amPOS - IAD

1 stop20h 30mUnited Airlines

Wed 10/156:01 amIAD - POS

1 stop17h 22mUnited Airlines

Deal found 9/12

$426

Wed 10/12:40 pmPOS - IAD

1 stop13h 40mCopa Airlines

Wed 10/154:41 pmIAD - POS

1 stop9h 05mCopa Airlines

Deal found 9/12

$431

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 September 15, 2025.

Wed 10/292:27 pmPOS - IAD

1 stop13h 53mCopa Airlines

Sun 11/21:13 amIAD - POS

1 stop11h 04mCopa Airlines

Deal found 9/13

$383

Thu 10/3012:30 amPOS - IAD

1 stop23h 14mUnited Airlines

Fri 11/710:10 pmIAD - POS

1 stop25h 13mUnited Airlines

Deal found 9/12

$407

Wed 10/2912:30 amPOS - IAD

1 stop21h 42mUnited Airlines

Mon 11/1012:55 pmIAD - POS

1 stop10h 28mUnited Airlines

Deal found 9/14

$407

Mon 10/2712:30 amPOS - IAD

1 stop20h 21mUnited Airlines

Mon 11/106:00 amIAD - POS

1 stop17h 23mUnited Airlines

Deal found 9/12

$407

Mon 10/2712:30 amPOS - IAD

1 stop20h 21mUnited Airlines

Tue 11/410:10 pmIAD - POS

1 stop25h 13mUnited Airlines

Deal found 9/12

$407

Sun 10/2612:30 amPOS - IAD

1 stop21h 42mUnited Airlines

Mon 11/1010:10 pmIAD - POS

1 stop25h 13mUnited Airlines

Deal found 9/12

$407

Fri 10/3112:30 amPOS - IAD

1 stop23h 14mUnited Airlines

Thu 11/610:10 pmIAD - POS

1 stop25h 13mUnited Airlines

Deal found 9/12

$407

Thu 10/3012:30 amPOS - IAD

1 stop21h 42mUnited Airlines

Thu 11/610:10 pmIAD - POS

1 stop25h 13mUnited Airlines

Deal found 9/14

$407

Sun 10/2612:30 amPOS - IAD

1 stop21h 42mUnited Airlines

Thu 11/610:10 pmIAD - POS

1 stop25h 13mUnited Airlines

Deal found 9/12

$407

Sun 10/2612:30 amPOS - IAD

1 stop21h 42mUnited Airlines

Tue 11/410:10 pmIAD - POS

1 stop25h 13mUnited Airlines

Deal found 9/12

$407

Sun 10/2612:30 amPOS - IAD

1 stop21h 42mUnited Airlines

Wed 11/58:30 amIAD - POS

1 stop14h 53mUnited Airlines

Deal found 9/14

$407

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 September 15, 2025 and is based on user searches.

Tue 9/2312:30 amPOS - IAD

1 stop16h 00mUnited Airlines

Sun 9/288:30 amIAD - POS

1 stop14h 53mUnited Airlines

Deal found 9/12

$443

Tue 9/233:51 amPOS - IAD

1 stop11h 14mMultiple Airlines

Sun 9/289:35 amIAD - POS

2 stops15h 45mMultiple Airlines

Deal found 9/12

$2,280

Wed 9/2412:30 amPOS - IAD

1 stop21h 36mUnited Airlines

Thu 10/28:30 amIAD - POS

1 stop14h 53mUnited Airlines

Deal found 9/11

$441

Wed 9/243:51 amPOS - IAD

1 stop24h 29mCopa Airlines

Wed 10/12:25 amIAD - POS

1 stop23h 21mCopa Airlines

Deal found 9/11

$614

Wed 9/243:25 pmPOS - IAD

2 stops17h 21mAmerican Airlines

Sun 9/288:12 pmIAD - POS

2 stops18h 04mAmerican Airlines

Deal found 9/12

$710

Wed 9/241:40 amPOS - IAD

2 stops14h 48mMultiple Airlines

Thu 10/29:35 amIAD - POS

2 stops39h 45mMultiple Airlines

Deal found 9/11

$727

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 September 15, 2025.

Wed 11/52:26 pmPOS - IAD

1 stop13h 56mCopa Airlines

Deal found 9/13

$230

Sun 10/123:51 amPOS - IAD

1 stop24h 29mCopa Airlines

Deal found 9/11

$238

Wed 10/293:51 amPOS - IAD

1 stop11h 14mCopa Airlines

Deal found 9/14

$247

Mon 9/292:25 amPOS - IAD

2 stops18h 40mAir Canada

Deal found 9/12

$254

Thu 11/202:15 amPOS - IAD

2 stops19h 39mAir Canada

Deal found 9/11

$259

Sat 11/221:30 amPOS - IAD

1 stop23h 14mUnited Airlines

Deal found 9/11

$268

Mon 11/171:30 amPOS - IAD

1 stop10h 58mUnited Airlines

Deal found 9/11

$269

Mon 10/133:25 pmPOS - IAD

2 stops22h 23mAmerican Airlines

Deal found 9/11

$273

Wed 11/191:30 amPOS - IAD

1 stop21h 42mUnited Airlines

Deal found 9/13

$278

Mon 11/34:30 pmPOS - IAD

2 stops18h 49mAmerican Airlines

Deal found 9/14

$279

Fri 9/194:22 amPOS - IAD

1 stop23h 58mCopa Airlines

Deal found 9/12

$282

Wed 11/199:10 amPOS - IAD

2 stops12h 10mMultiple Airlines

Deal found 9/14

$283

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

Wed 10/29

2:27 pm-4:20 am

1 stop13h 53m

Washington, D.C. Dulles Intl

Sun 11/2

1:13 am-1:17 pm

1 stop11h 04m

$383

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Thu 10/30

12:30 am-11:44 pm

1 stop23h 14m

Washington, D.C. Dulles Intl

Fri 11/7

10:10 pm-12:23 am

1 stop25h 13m

$407

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Wed 10/29

12:30 am-10:12 pm

1 stop21h 42m

Washington, D.C. Dulles Intl

Mon 11/10

12:55 pm-12:23 am

1 stop10h 28m

$407

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Mon 10/27

12:30 am-8:51 pm

1 stop20h 21m

Washington, D.C. Dulles Intl

Mon 11/10

6:00 am-12:23 am

1 stop17h 23m

$407

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Mon 10/27

12:30 am-8:51 pm

1 stop20h 21m

Washington, D.C. Dulles Intl

Tue 11/4

10:10 pm-12:23 am

1 stop25h 13m

$407

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Sun 10/26

12:30 am-10:12 pm

1 stop21h 42m

Washington, D.C. Dulles Intl

Mon 11/10

10:10 pm-12:23 am

1 stop25h 13m

$407

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Fri 10/31

12:30 am-11:44 pm

1 stop23h 14m

Washington, D.C. Dulles Intl

Thu 11/6

10:10 pm-12:23 am

1 stop25h 13m

$407

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Thu 10/30

12:30 am-10:12 pm

1 stop21h 42m

Washington, D.C. Dulles Intl

Thu 11/6

10:10 pm-12:23 am

1 stop25h 13m

$407

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Sun 10/26

12:30 am-10:12 pm

1 stop21h 42m

Washington, D.C. Dulles Intl

Thu 11/6

10:10 pm-12:23 am

1 stop25h 13m

$407

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Sun 10/26

12:30 am-10:12 pm

1 stop21h 42m

Washington, D.C. Dulles Intl

Tue 11/4

10:10 pm-12:23 am

1 stop25h 13m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 20 results

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 $292). Flying from Port of Spain to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

Reviews of airlines servicing Dulles Intl

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

7.6

Good

1,531 reviews

Reviews

1 / 20

10.0

Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring

Copa Airlines

7.6

Good

1,531 reviews

Copa Airlines

7.6

Good

1,531 reviews

Reviews

1 / 20

10.0

Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring

United Airlines

7.4

Good

8,931 reviews

Copa Airlines

7.6

Good

1,531 reviews

Reviews

1 / 20

10.0

Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring

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. 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 13h 53m. Fly via Copa Airlines or United Airlines to get the fastest option. There are 2195 mi between Port of Spain and Washington, D.C. Dulles Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Port of Spain to Washington, D.C. Dulles Intl Airport round-trip?
Currently priced at $335, 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 $395. Copa Airlines is priced at 31% 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.
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 $292). Flying from Port of Spain to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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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Arlington

Tysons

Silver Spring

Springfield

Gaithersburg

Fredericksburg

Linthicum Heights

Fairfax

Falls Church

Owings Mills

Manassas

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Laurel

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Top 2 airlines flying from Port of Spain to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Copa Airlines	Cheapest$335	Average$450	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$395	Average$434	FlexibilityNo cancel fee	On-time69%

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$230+ 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 11/5. 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

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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 September 15, 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 September 15, 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?

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?

How long is the flight from Port of Spain to 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?

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 Washington, D.C. Dulles Intl Airport?

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Alternative routes for Port of Spain to Dulles Intl

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Top 2 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 September 15, 2025.