POS - IAD

$257 Find Cheap Flights from Port of Spain to Washington Dulles Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Port of Spain to Dulles Intl departing on 6/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Port of Spain to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Port of Spain to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$506
Typical prices: $448-$549
Multiple Airlines
Thu 9/17Mon 9/21
POS - IAD • 1 stop
Cheapest one-way
$257
Typical prices: $411-$447
Multiple Airlines
Thu 6/25
POS - IAD • 1 stop
Top airlines
Cheapest • from $574 (round-trip)
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Port of Spain and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $636 (round-trip)
Shortest trip • 10h 58m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Port of Spain to Dulles Intl (POS-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Port of Spain to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Port of Spain to Dulles Intl

Thu, Sep 17 - Mon, Sep 21
Multiple Airlines Logo
10:10 am - 8:21 pm
POS
-
IAD
10h 11m
1 stop
Multiple Airlines Logo
9:16 pm - 6:55 pm
IAD
-
POS
21h 39m
2 stops
$506Multiple Airlines
Mon, Aug 31 - Fri, Sep 18
Multiple Airlines Logo
10:10 am - 7:44 pm
POS
-
IAD
9h 34m
1 stop
Multiple Airlines Logo
9:16 pm - 6:55 pm
IAD
-
POS
21h 39m
2 stops
$548Multiple Airlines
Mon, Sep 14 - Fri, Sep 25
Air Canada Logo
1:20 am - 3:25 pm
POS
-
IAD
14h 05m
1 stop
Air Canada Logo
4:00 pm - 12:15 am
IAD
-
POS
8h 15m
1 stop
$574Air Canada
Mon, Sep 14 - Fri, Sep 25
Air Canada Logo
1:20 am - 3:00 pm
POS
-
IAD
13h 40m
2 stops
Air Canada Logo
4:00 pm - 12:15 am
IAD
-
POS
8h 15m
1 stop
$578Air Canada
Mon, Sep 14 - Fri, Sep 25
Air Canada Logo
1:20 am - 3:00 pm
POS
-
IAD
13h 40m
2 stops
Air Canada Logo
9:45 am - 12:15 am
IAD
-
POS
14h 30m
2 stops
$581Air Canada
Sun, Aug 30 - Fri, Sep 18
Air Canada Logo
1:25 am - 3:24 pm
POS
-
IAD
13h 59m
1 stop
Air Canada Logo
4:00 pm - 12:15 am
IAD
-
POS
8h 15m
1 stop
$605Air Canada
Sun, Jun 28 - Sun, Aug 2
Air Canada Logo
1:25 am - 3:24 pm
POS
-
IAD
13h 59m
1 stop
Air Canada Logo
9:55 am - 12:15 am
IAD
-
POS
14h 20m
1 stop
$619Air Canada
Wed, Sep 16 - Mon, Sep 21
Copa Airlines Logo
3:50 am - 4:20 am
POS
-
IAD
24h 30m
1 stop
Copa Airlines Logo
4:34 pm - 1:47 am
IAD
-
POS
9h 13m
1 stop
$624Copa Airlines
Wed, Jul 8 - Mon, Jul 13
Air Canada Logo
1:25 am - 3:24 pm
POS
-
IAD
13h 59m
1 stop
Air Canada Logo
9:55 am - 12:15 am
IAD
-
POS
14h 20m
1 stop
$632Air Canada
Sun, Jul 5 - Sun, Jul 12
Air Canada Logo
1:25 am - 3:01 pm
POS
-
IAD
37h 36m
2 stops
Air Canada Logo
9:55 am - 12:15 am
IAD
-
POS
14h 20m
1 stop
$635Air Canada
Booking Insights

KAYAK's insights & trends for Port of Spain to Dulles Intl flights

Get data-powered insights and trends into flights from Port of Spain to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Port of Spain to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Port of Spain to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Port of Spain to Washington, D.C. Dulles Intl Airport is June, where tickets cost $0 (return) on average. On the other hand, the most expensive months are January and July, where the average cost of round-trip tickets is $976 and $815 respectively.

Good to know

Low seasonMarch
Cheapest flight$257
Best time to beat the crowds with an average 57% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Port of Spain to Washington Dulles Airport

When to book flights from Port of Spain to Dulles Intl

Are your dates flexible? Find out the best times to travel from Port of Spain to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Port of Spain to Washington Dulles Airport flights

  • What is the cheapest flight from Port of Spain to Washington, D.C. Dulles Intl Airport?

    In the last 5 days, the lowest price for a flight from Port of Spain to Washington, D.C. Dulles Intl Airport was $257 for a one-way ticket and $506 for a round-trip.

  • Do I need a passport to fly between Port of Spain and Washington Dulles Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Port of Spain and on arrival in Washington Dulles Airport.

  • Which airports will I be using when flying from Port of Spain to Washington Dulles Airport?

    When flying out of Port of Spain you will be using Port of Spain Piarco Intl. You will be landing at Washington Dulles Airport, also known as Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Port of Spain to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Port of Spain to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Port of Spain and Washington Dulles Airport.

  • Which is the best airline for flights from Port of Spain to Washington, D.C., Copa Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Port of Spain to Washington, D.C. are Copa Airlines and United Airlines. With an average price for the route of $623 and an overall rating of 7.6, Copa Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $684 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Port of Spain to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Port of Spain to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Port of Spain to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Port of Spain is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Port of Spain to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Port of Spain with another airline. Booking your flights between Port of Spain and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Port of Spain to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Port of Spain up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Port of Spain to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Port of Spain to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Port of Spain to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Copa AirlinesOverall score based on 1567 reviews
7.4Comfort
6.9Food
6.8Entertainment
7.8Boarding
8.1Crew
Airline reviews

Same as the previous flight as far as comfort and food. Entertainment didn’t have a watchable screen so everything would need to be watched on your own device in which they didn’t have a charging port that accommodated my iPhone. Seats were very uncomfortable. Staff was very friendly.

6.0 GoodAnonymous, May 2026
PTY - LAX
Read more Copa Airlines reviews

Same as the previous flight as far as comfort and food. Entertainment didn’t have a watchable screen so everything would need to be watched on your own device in which they didn’t have a charging port that accommodated my iPhone. Seats were very uncomfortable. Staff was very friendly.

They didn’t have any headphones for the entertainment screen and their USB port didn’t accommodate a USB-C for more modern phones. The food was just ok. The staff was friendly but the seats were very uncomfortable for a full flight.

Entire experience from check in to landing was amazing the flight crew was excellent and friendly. Seats were comfortable.

Boarding was confusing from staff telling going to preboard and than to group 1 Airplane was not cooling at the beginning

Friendly crew, good food options, food not the best and seats not as comfy but that’s typical.

The food is terrible I ask for water never got transport my mother we’re late and my sister from Lima was the worst waiting to long for wheelchair

Do not book it’s a scam! They stole $1200 from me

Flight got delayed; had to go through security three times.

Copa staff at PTY and one particular crew member were unhelpful & rude.

Seats were awful. Media should have been included for such a long flight.

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

Everything you need to know for your flight from Port of Spain to Dulles Intl

Information on your arrival and departure airports