Skyscanner home

Cheap Flights from Washington Dulles (IAD) to Port Of Spain (POS)

Compare Washington Dulles to Port Of Spain flight deals

Find the cheapest month or even day of the year to fly to Port Of Spain

Book the best Port Of Spain fare with no extra fees

Flight deals from Washington Dulles to Port Of Spain

Looking for a cheap last-minute deal or the best return flight from Washington Dulles Airport to Port Of Spain Airport? If you want to travel next month, return fares start from £345. Find the lowest prices on one-way and return tickets right here.
Port Of Spain.£183 per passenger.Departing Mon, 7 Sep.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Mon, 7 Sep, arriving in Port Of Spain.Price includes taxes and charges.From £183, select.
Port Of Spain.£183 per passenger.Departing Sun, 3 May.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Sun, 3 May, arriving in Port Of Spain.Price includes taxes and charges.From £183, select.
Port Of Spain.£195 per passenger.Departing Wed, 29 Jul.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Wed, 29 Jul, arriving in Port Of Spain.Price includes taxes and charges.From £195, select.
Port Of Spain.£206 per passenger.Departing Wed, 12 Aug.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Wed, 12 Aug, arriving in Port Of Spain.Price includes taxes and charges.From £206, select.
Port Of Spain.£206 per passenger.Departing Mon, 29 Jun.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Mon, 29 Jun, arriving in Port Of Spain.Price includes taxes and charges.From £206, select.
Port Of Spain.£228 per passenger.Departing Thu, 4 Feb.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Thu, 4 Feb, arriving in Port Of Spain.Price includes taxes and charges.From £228, select.

Find the cheapest month to fly from Washington Dulles to Port Of Spain

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Port Of Spain flights are currently cheapest in May.
May
from £183
Jun
from £206
Jul
from £195
Aug
from £206
Sep
from £183
Oct
Find prices
Nov
Find prices
Dec
Find prices
Jan
Find prices
Feb
from £228
Mar
Find prices
Apr
Find prices

Washington Dulles to Port Of Spain: Alternative routes

Compare routes from Washington Dulles to Port Of Spain below. You may find an airport to fly into that's cheaper, faster, or easier than Port Of Spain.

Port Of Spain

12 miles from central Port Of Spain
ClosestCheapest
from £183
Search flights

Washington D.C. to Port Of Spain: Flight information

The things to know before you go.
Cheapest flight found£183
Cheapest month to flyMay

Finding cheap flights from Washington Dulles to Port Of Spain: Frequently asked questions

The best price we found for a return flight from Washington Dulles to Port Of Spain is £342. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Washington Dulles to Port Of Spain. But we found flights with one or more stops from £342.
As of May 2026, there are no flights flying from Washington Dulles to Port Of Spain.
The cheapest month to fly from Washington Dulles to Port Of Spain is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Port Of Spain Airport on Wednesday, 20 May 2026.
No airlines currently offer direct flights between Washington Dulles Airport and Port Of Spain Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Port Of Spain but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Port Of Spain is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to Port Of Spain.

Flying from Washington Dulles International Airport (IAD) to Piarco International Airport (POS): what you need to know

  • Washington DC and Port Of Spain are both in the UTC-4 timezone. This means you won't have to change your watch when you arrive.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport on time to board your IAD to POS flight.

  • During popular months such as April, it's a good idea to get to the airport earlier. Arrive two hours before a domestic departure and four hours ahead of international flights when you fly during a high season in general.

  • We make it easy to book a flight with a stopover. To see all your options for tickets from Washington Dulles International Airport to Piarco International Airport, uncheck 'Direct flights only.' Then, choose a flight that has a stop long enough to explore the city of your choice. Popular stopovers between IAD and POS include:

    • Luis Munoz Marin International Airport

    • Princess Juliana International Airport

    • John F. Kennedy International Airport

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Piarco International Airport (POS)

  • Currently, £183 is the lowest price we've found for a one-way Washington Dulles International Airport to Piarco International Airport flight. The best price for a return ticket is £342. Bear in mind that fares may change due to demand when booking.

  • It's usually best to book early if you're hoping to get cheap tickets from IAD to POS. That's because airlines change prices based on demand, which tends to increase closer to departure.

  • Finding cheap flights from Washington Dulles International Airport to Piarco International Airport is easy if you can be flexible with your trip dates. Use the 'Whole month' tool to see the lowest prices across the month and bag a great deal.

  • Picking up cheap flights from IAD to POS is easy with Price Alerts. Simply set up one of these automatic alerts and we'll let you know when a lower fare pops up.

  • Lock in the ideal flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Washington Dulles International Airport to Piarco International Airport, use the 'Sort by' tool. You can also filter by arrival and departure times, airline, and journey duration.

Handy information about Washington Dulles International Airport (IAD)

  • IAD is located at 1 Saarinen Circle.

  • When it comes to Washington Dulles International Airport's on-time performance, 74.39% of flights meet their scheduled arrival time.

  • Washington Dulles International Airport is around 35 miles from central Washington DC. If you're driving, catching a cab or ride-sharing from the centre, it'll take 50 minutes or so to get there, depending on the traffic.

  • The journey on public transport takes about 3 hours 25 minutes.

  • Booked an early flight from Washington Dulles International Airport to Piarco International Airport? Avoid the stress of rushing to the airport (and catch some extra z's) by picking one of these hotels close to IAD:

Arriving at Piarco International Airport (POS)

  • The last thing you want is a lengthy trip to your hotel if you're arriving on a late Washington Dulles International Airport to Piarco International Airport flight. Check in to one of these accommodation options near POS instead:

  • Grab a Piarco International Airport rental car and explore Port Of Spain and beyond with your own set of wheels. Sixt, Alamo and Ace Rent a Car are popular providers to choose from here.

  • Lock in the best possible rate by booking your vehicle from Piarco International Airport about one week ahead of your departure.

Getting from Piarco International Airport (POS) to central Port Of Spain

  • From Piarco International Airport, Port Of Spain is approximately 14 miles away. It takes around 30 minutes to reach the centre by car.

When to fly to Piarco International Airport (POS)

  • The quietest month for a flight from Washington Dulles International Airport to Piarco International Airport is February, while July is the busiest. Choose the best time to go to Port Of Spain based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Before locking in your flight from Washington Dulles International Airport to Piarco International Airport, consider the type of weather you like. September is the warmest month in Port Of Spain, with the temperature ranging from 24ºC (75ºF) to 31ºC (88ºF).

  • February has average temperatures of between 22ºC (72ºF) and 30ºC (86ºF). Look for cheap tickets from IAD to POS sometime around then if you want to travel in cooler conditions.

Explore more of Trinidad and Tobago

  • You've visited Port Of Spain, now it's time to discover other parts of Trinidad and Tobago. Travel around 12 miles south-east to Chaguanas to tick off its top attractions. From Redemption Worship Centre to Badra Kali Shakti Temple and Park, you'll have a packed itinerary ahead.

  • San Fernando is another standout destination in Trinidad and Tobago and is around 25 miles south of Port Of Spain. No trip is complete without experiencing Susamachar Presbyterian Church, St Paul’s Church and Cluny Eucharistic Centre.

Plan the rest of your trip from Washington D.C. to Port Of Spain

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.