£239 Cheap Flights from Port of Spain (POS) to Washington (IAD)

View £239 flight on Sat, 6 Jun 2026Opens in a new window

Popular airlines from Piarco Intl. Airport (POS) to Washington Dulles International Airport (IAD)

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Cheap Flights from Port of Spain (POS) to Washington (IAD)

Prices were available within the past 7 days and start at £239 for one-way flights and £475 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, 6 Aug - Fri, 28 Aug
POS
Trinidad
IAD
Washington
£475 Return, found 4 days ago
£475
Return
found 4 days ago
Select Air Canada flight, departing Thu, 6 Aug from Trinidad to Washington, returning Fri, 28 Aug, priced at £475 found 4 days ago
Air Canada
Thu, 6 Aug - Tue, 1 Sept
POS
Trinidad
IAD
Washington
£486 Return, found 4 days ago
£486
Return
found 4 days ago
Select Air Canada flight, departing Thu, 6 Aug from Trinidad to Washington, returning Tue, 1 Sept, priced at £486 found 4 days ago
Air Canada
Thu, 6 Aug - Thu, 27 Aug
POS
Trinidad
IAD
Washington
£493 Return, found 4 days ago
£493
Return
found 4 days ago
Select Air Canada flight, departing Thu, 6 Aug from Trinidad to Washington, returning Thu, 27 Aug, priced at £493 found 4 days ago
Air Canada
Sat, 6 Jun - Sat, 8 Aug
POS
Trinidad
IAD
Washington
£506 Return, found 5 days ago
£506
Return
found 5 days ago
Select Air Canada flight, departing Sat, 6 Jun from Trinidad to Washington, returning Sat, 8 Aug, priced at £506 found 5 days ago
Air Canada
Sat, 6 Jun - Sat, 8 Aug
POS
Trinidad
IAD
Washington
£509 Return, found 5 days ago
£509
Return
found 5 days ago
Select Air Canada flight, departing Sat, 6 Jun from Trinidad to Washington, returning Sat, 8 Aug, priced at £509 found 5 days ago
Air Canada
Thu, 9 Jul - Tue, 14 Jul
POS
Trinidad
IAD
Washington
£531 Return, found 3 days ago
£531
Return
found 3 days ago
Select Air Canada flight, departing Thu, 9 Jul from Trinidad to Washington, returning Tue, 14 Jul, priced at £531 found 3 days ago
United
Wed, 5 Aug - Sun, 30 Aug
POS
Trinidad
IAD
Washington
£565 Return, found 4 days ago
£565
Return
found 4 days ago
Select United flight, departing Wed, 5 Aug from Trinidad to Washington, returning Sun, 30 Aug, priced at £565 found 4 days ago
Windward Island Airways International
Wed, 5 Aug - Sun, 30 Aug
POS
Trinidad
IAD
Washington
£567 Return, found 4 days ago
£567
Return
found 4 days ago
Select Windward Island Airways International flight, departing Wed, 5 Aug from Trinidad to Washington, returning Sun, 30 Aug, priced at £567 found 4 days ago
Copa
Fri, 8 May - Wed, 8 Jul
POS
Trinidad
IAD
Washington
£574 Return, found 5 days ago
£574
Return
found 5 days ago
Select Copa flight, departing Fri, 8 May from Trinidad to Washington, returning Wed, 8 Jul, priced at £574 found 5 days ago
American Airlines
Sun, 2 Aug - Tue, 1 Sept
POS
Trinidad
IAD
Washington
£623 Return, found 4 days ago
£623
Return
found 4 days ago
Select American Airlines flight, departing Sun, 2 Aug from Trinidad to Washington, returning Tue, 1 Sept, priced at £623 found 4 days ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city centre is 8 minutes. Flights from £524
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city centre8 min
Flights from £524

Frequently asked questions

How do I find cheap flights from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
There are approximately 8 connecting flights per day from Port of Spain (POS-Piarco Intl.) (POS) to Washington, DC (IAD-Washington Dulles Intl.) (IAD). Some common connection points include Pearson Intl. (YYZ), Miami Intl. (MIA), and Cheddi Jagan Intl. (GEO).
What is the earliest flight from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) typically departs at approximately 12:30 AM local time. This service is operated by United Airlines and is seasonal, active only in May. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You'll typically find the most flights from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) on a Monday, with around 8 flights available. This gives you a good selection for your travel plans. Major airlines on this route include Caribbean Airlines, Copa, and American Airlines. Flight schedules are consistent throughout the week, so you'll have plenty of options regardless of the day you choose to fly.
What are the most popular departure times for flights from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The most popular departure times for flights from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) are between midnight and 3am. This accounts for around 30% of total traffic. Many major carriers, including United Airlines and Air Canada, offer flights during this window. Many travelers prefer these early morning flights to arrive at their destination with plenty of time to start their day.
How long does it take to fly from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
A flight from POS to IAD with a layover takes around 24 hours 50 minutes, with the route covering approximately 2,196 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Select the "Business class" and "First class" filters when looking for POS to IAD flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington from Piarco Intl. (POS)?
When traveling from Piarco Intl. (POS) to Washington, you can fly into Ronald Reagan Washington National (DCA) and Washington Dulles Intl. (IAD). Some flights may connect through major hubs like Miami Intl. (MIA), Pearson Intl. (YYZ), John F. Kennedy Intl. (JFK) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Port of Spain (POS-Piarco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Piarco Intl.
Destination airport
Washington Dulles Intl.
Return price
£475
Distance
3513 km

Book with confidence

Compare flights from Port of Spain to Washington easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Port of Spain to Washington. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Washington Dulles Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Piarco Intl. to Washington Dulles Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Piarco Intl. (POS) to Washington Dulles Intl. (IAD)

The easiest way to view the best deals on flights from Port of Spain to Washington today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Piarco Intl. to Washington Dulles Intl. start at just £475 and range up to £623.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Port of Spain and Washington
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Port of Spain to Washington flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Piarco Intl. to Washington Dulles Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Port of Spain to Washington easily and book with confidence

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