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).

Can I find deals for flights from Trinidad and Tobago to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Trinidad and Tobago to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Trinidad and Tobago to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Trinidad and Tobago to Dulles Intl.

Can I find deals for business class flights from Trinidad and Tobago to Dulles Intl?

Yes. Cheapflights offers flight deals from Trinidad and Tobago 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.

$237+ Flights from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Trinidad and Tobago to Dulles Intl

Cheapest flights from Trinidad and Tobago to Dulles Intl
Explore the most affordable flight options available from Trinidad and Tobago to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

Mon 12/293:13 amPOS - IAD

1 stop11h 49mCopa Airlines

Sat 1/103:25 pmIAD - POS

1 stop9h 48mCopa Airlines

Deal found 12/25

$706

Mon 12/293:13 amPOS - IAD

1 stop11h 49mMultiple Airlines

Sun 1/48:26 pmIAD - POS

2 stops22h 54mMultiple Airlines

Deal found 12/25

$738

Mon 12/293:13 amPOS - IAD

1 stop11h 49mCopa Airlines

Sun 1/48:25 amIAD - POS

1 stop28h 08mCopa Airlines

Deal found 12/25

$745

Tue 12/3010:00 pmPOS - IAD

3 stops30h 10mMultiple Airlines

Sat 1/109:45 amIAD - POS

2 stops38h 35mMultiple Airlines

Deal found 12/25

$795

Tue 12/304:46 pmPOS - IAD

2 stops16h 56mAmerican Airlines

Sat 1/105:46 pmIAD - POS

2 stops20h 39mAmerican Airlines

Deal found 12/25

$921

Tue 12/306:02 amPOS - IAD

2 stops19h 02mAmerican Airlines

Sun 1/44:29 pmIAD - POS

2 stops22h 17mAmerican Airlines

Deal found 12/25

$971

Tue 12/304:46 pmPOS - IAD

2 stops24h 13mAmerican Airlines

Sat 1/34:29 pmIAD - POS

2 stops22h 17mAmerican Airlines

Deal found 12/24

$1,106

Mon 12/293:13 amPOS - IAD

1 stop11h 49mCopa Airlines

Sat 1/33:25 pmIAD - POS

1 stop9h 48mCopa Airlines

Deal found 12/24

$1,900

Best flights from Trinidad and Tobago to Dulles Intl
Discover carefully curated flight deals from Trinidad and Tobago to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Wed 2/252:28 pmPOS - IAD

1 stop13h 47mCopa Airlines

Wed 3/43:35 pmIAD - POS

1 stop9h 11mCopa Airlines

Deal found 12/24

$424

Tue 1/132:20 amPOS - IAD

1 stop14h 26mAir Canada

Tue 1/209:00 amIAD - POS

1 stop15h 20mAir Canada

Deal found 12/25

$426

Thu 1/225:55 pmPOS - IAD

2 stops23h 38mMultiple Airlines

Mon 1/263:58 pmIAD - POS

1 stop25h 57mMultiple Airlines

Deal found 12/26

$488

Fri 2/272:28 pmPOS - IAD

1 stop13h 47mCopa Airlines

Sun 3/13:35 pmIAD - POS

1 stop9h 11mCopa Airlines

Deal found 12/25

$444

Tue 2/242:20 amPOS - IAD

1 stop14h 29mAir Canada

Thu 3/59:00 amIAD - POS

1 stop15h 20mAir Canada

Deal found 12/24

$517

Sat 2/142:28 pmPOS - IAD

1 stop13h 47mCopa Airlines

Sat 2/213:35 pmIAD - POS

1 stop9h 38mCopa Airlines

Deal found 12/25

$495

Fri 2/272:20 amPOS - IAD

1 stop19h 09mAir Canada

Fri 3/69:00 amIAD - POS

1 stop15h 20mAir Canada

Deal found 12/24

$517

Tue 2/242:20 amPOS - IAD

1 stop19h 09mAir Canada

Fri 3/69:00 amIAD - POS

1 stop15h 20mAir Canada

Deal found 12/24

$517

Last-minute flights from Trinidad and Tobago to Dulles Intl
Discover last-minute flight deals from Trinidad and Tobago to Dulles Intl. Data last updated December 26, 2025 and is based on user searches.

Tue 1/132:20 amPOS - IAD

1 stop14h 26mAir Canada

Tue 1/209:00 amIAD - POS

1 stop15h 20mAir Canada

Deal found 12/25

$426

Tue 1/132:20 amPOS - IAD

1 stop19h 06mAir Canada

Mon 1/1910:06 pmIAD - POS

1 stop26h 14mAir Canada

Deal found 12/25

$542

Wed 1/213:13 amPOS - IAD

1 stop11h 45mCopa Airlines

Mon 1/268:25 amIAD - POS

1 stop16h 48mCopa Airlines

Deal found 12/26

$551

Wed 1/213:13 amPOS - IAD

1 stop25h 00mCopa Airlines

Sat 1/241:12 amIAD - POS

1 stop24h 01mCopa Airlines

Deal found 12/26

$582

Thu 1/225:55 pmPOS - IAD

2 stops23h 38mMultiple Airlines

Mon 1/263:58 pmIAD - POS

1 stop25h 57mMultiple Airlines

Deal found 12/26

$488

Thu 1/2210:10 amPOS - IAD

3 stops26h 13mMultiple Airlines

Sun 1/259:00 amIAD - POS

1 stop15h 20mMultiple Airlines

Deal found 12/26

$534

Thu 1/222:20 amPOS - IAD

1 stop19h 06mAir Canada

Thu 2/59:00 amIAD - POS

1 stop15h 20mAir Canada

Deal found 12/25

$595

Sat 1/241:30 amPOS - IAD

1 stop10h 54mUnited Airlines

Sun 2/15:45 pmIAD - POS

1 stop29h 38mUnited Airlines

Deal found 12/26

$577

Sun 1/259:10 amPOS - IAD

1 stop30h 53mMultiple Airlines

Sun 2/15:37 pmIAD - POS

2 stops24h 18mMultiple Airlines

Deal found 12/26

$555

One-way flights from Trinidad and Tobago to Dulles Intl
Search for one-way flight options from Trinidad and Tobago to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated December 26, 2025.

Fri 3/131:20 amPOS - IAD

1 stop14h 26mAir Canada

Deal found 12/24

$237

Fri 3/1312:30 amPOS - IAD

1 stop10h 56mUnited Airlines

Deal found 12/26

$387

Tue 2/172:20 amPOS - IAD

1 stop19h 09mAir Canada

Deal found 12/25

$406

Tue 12/302:15 amPOS - IAD

1 stop19h 11mAir Canada

Deal found 12/25

$462

Thu 2/191:00 pmPOS - IAD

2 stops25h 15mMultiple Airlines

Deal found 12/26

$503

Fri 2/201:30 amPOS - IAD

1 stop10h 56mUnited Airlines

Deal found 12/24

$547

Thu 2/192:28 pmPOS - IAD

1 stop10h 04mCopa Airlines

Deal found 12/24

$566

Wed 2/181:30 pmPOS - IAD

3 stops46h 14mMultiple Airlines

Deal found 12/26

$637

Find flight deals from Trinidad and Tobago to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$382 (Copa Airlines)
One-way from	$237 (Air Canada)
Popular in	April
Cheapest in	February
Average price	$602

Provider with most accurate pricing for Port of Spain Piarco Intl-Washington, D.C. (WAS) flight deals.

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Provider most trusted by Cheapflights users for Port of Spain Piarco Intl-Washington, D.C. (WAS) flights.

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From Trinidad and Tobago to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Trinidad and Tobago to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($48 potential increase over avg. RT price).

Search Deals

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

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Trinidad and Tobago 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 2/25

2:28 pm-3:15 am

1 stop13h 47m

Washington, D.C. Dulles Intl

Wed 3/4

3:35 pm-1:46 am

1 stop9h 11m

$424

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Tue 1/13

2:20 am-3:46 pm

1 stop14h 26m

Washington, D.C. Dulles Intl

Tue 1/20

9:00 am-1:20 am

1 stop15h 20m

$426

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Fri 2/27

2:28 pm-3:15 am

1 stop13h 47m

Washington, D.C. Dulles Intl

Sun 3/1

3:35 pm-1:46 am

1 stop9h 11m

$444

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Thu 1/22

5:55 pm-4:33 pm

2 stops23h 38m

Washington, D.C. Dulles Intl

Mon 1/26

3:58 pm-6:55 pm

1 stop25h 57m

$488

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Sat 2/14

2:28 pm-3:15 am

1 stop13h 47m

Washington, D.C. Dulles Intl

Sat 2/21

3:35 pm-2:13 am

1 stop9h 38m

$495

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Tue 2/24

2:20 am-3:49 pm

1 stop14h 29m

Washington, D.C. Dulles Intl

Thu 3/5

9:00 am-1:20 am

1 stop15h 20m

$517

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Fri 2/27

2:20 am-8:29 pm

1 stop19h 09m

Washington, D.C. Dulles Intl

Fri 3/6

9:00 am-1:20 am

1 stop15h 20m

$517

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Tue 2/24

2:20 am-8:29 pm

1 stop19h 09m

Washington, D.C. Dulles Intl

Fri 3/6

9:00 am-1:20 am

1 stop15h 20m

$517

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Sun 4/19

1:20 am-8:29 pm

1 stop19h 09m

$237

Port of SpainWashington, D.C.

POS - IAD

POSIAD

Port of Spain Piarco Intl

Fri 3/13

1:20 am-8:26 pm

1 stop19h 06m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 15 results

Best time to book a flight from Trinidad and Tobago to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Trinidad and Tobago 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 Trinidad and Tobago to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport?

Currently, December is the cheapest month in which you can book a flight from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport (average of $222). Flying from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $622). 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 TT to IAD?

When flying from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 21% versus a flight in the evening.

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport, such as Copa Airlines and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Copa Airlines

7.6

Good

1,559 reviews

Reviews

1 / 20

2.0

Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it

Copa Airlines

7.6

Good

1,559 reviews

Copa Airlines

7.6

Good

1,559 reviews

Reviews

1 / 20

2.0

Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it

United Airlines

7.4

Good

9,115 reviews

Copa Airlines

7.6

Good

1,559 reviews

Reviews

1 / 20

2.0

Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it

Related info for your journey

How long is the flight from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport?
Copa Airlines and Air Canada can get you from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport in just under 13h 47m. Your travel time can differ by up to 39m. Airlines will cover a distance of 2195 mi. This flight may include one or multiple stops.
Can I find deals for flights from Trinidad and Tobago to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Trinidad and Tobago to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Trinidad and Tobago to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Trinidad and Tobago to Dulles Intl.
Can I find deals for business class flights from Trinidad and Tobago to Dulles Intl?
Yes. Cheapflights offers flight deals from Trinidad and Tobago 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 Trinidad and Tobago to Washington, D.C. Dulles Intl Airport?
Currently, December is the cheapest month in which you can book a flight from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport (average of $222). Flying from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $622). 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

Alexandria

Woodbridge

Tysons

Arlington

Owings Mills

Springfield

Hanover

Silver Spring

Fredericksburg

Linthicum Heights

Rockville

Laurel

Towson

Manassas

National Harbor

Bowie

Largo

McLean

Clinton

Cordova

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Top 2 airlines flying from Trinidad and Tobago to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Copa Airlines	Cheapest$222	Average$437	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$404	Average$513	FlexibilityNo cancel fee	On-time69%

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$237+ Cheap flights from Trinidad and Tobago 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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Trinidad and Tobago to Dulles Intl with Cheapflights

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Cheap flight deals from Trinidad and Tobago to Dulles Intl

Cheapest flights from Trinidad and Tobago to Dulles IntlExplore the most affordable flight options available from Trinidad and Tobago to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

Explore the most affordable flight options available from Trinidad and Tobago to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

Find flight deals from Trinidad and Tobago to Dulles Intl

Keep the following information in mind while searching for Trinidad and Tobago to Dulles Intl flight deals. Data was last updated December 26, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Trinidad and Tobago to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Trinidad and Tobago with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport?

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

Find hourly flight availability from Trinidad and Tobago 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 December 26, 2025.

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport, such as Copa Airlines and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Trinidad and Tobago to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Trinidad and Tobago to Dulles Intl that include hotel bookings?

How can I find direct flights from Trinidad and Tobago to Dulles Intl?

Can I find deals for business class flights from Trinidad and Tobago to Dulles Intl?

What is the cheapest month to book a flight from Trinidad and Tobago to Washington, D.C. Dulles Intl Airport?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Trinidad and Tobago to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Trinidad and Tobago to Dulles Intl

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Cheapest flights from Trinidad and Tobago to Dulles Intl
Explore the most affordable flight options available from Trinidad and Tobago to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.