IAD - POS

$185 Find Cheap Flights from Washington Dulles Airport to Port of Spain

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Port of Spain departing on 6/23. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Port of Spain

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Port of Spain 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.

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Dulles Intl to Port of Spain.
Discover the best prices for you by selecting your travel dates on KAYAK.
Copa Airlines Logo
4:34 pm - 1:47 amIAD-POS
9h 13m1 stop
Copa Airlines Logo
3:44 am - 3:04 pmPOS-IAD
11h 20m1 stop
$327Copa Airlines
Find Deal
Tue, May 27 - Mon, Jun 2
Copa Airlines Logo
4:34 pm - 1:47 amIAD-POS
9h 13m1 stop
Copa Airlines Logo
3:44 am - 3:04 pmPOS-IAD
11h 20m1 stop
$344Copa Airlines
Find Deal
Wed, May 28 - Mon, Jun 2
United Airlines Logo
6:10 am - 11:23 pmIAD-POS
17h 13m1 stop
United Airlines Logo
12:30 am - 1:57 pmPOS-IAD
13h 27m1 stop
$368United Airlines
Find Deal
Wed, May 28 - Tue, Jun 3
American Airlines Logo
8:02 pm - 2:15 pmIAD-POS
18h 13m2 stops
American Airlines Logo
3:05 pm - 1:22 pmPOS-IAD
22h 17m2 stops
$373American Airlines
Find Deal
Wed, May 28 - Tue, Jun 3
American Airlines Logo
2:09 pm - 2:15 pmIAD-POS
24h 06m2 stops
American Airlines Logo
3:20 pm - 4:04 pmPOS-IAD
24h 44m2 stops
$387American Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 30
United Airlines Logo
6:10 am - 11:23 pmIAD-POS
17h 13m1 stop
United Airlines Logo
12:30 am - 10:23 pmPOS-IAD
21h 53m1 stop
$397United Airlines
Find Deal
Sun, Jun 1 - Sat, Jun 7
Air Canada Logo
2:25 pm - 1:25 amIAD-POS
11h 00m1 stop
Air Canada Logo
2:25 am - 9:05 pmPOS-IAD
18h 40m2 stops
$417Air Canada
Find Deal
Sun, Sep 21 - Fri, Oct 10
Air Canada Logo
2:25 pm - 1:25 amIAD-POS
11h 00m1 stop
Air Canada Logo
2:25 am - 9:08 pmPOS-IAD
18h 43m2 stops
$427Air Canada
Find Deal
Fri, May 16 - Mon, Jun 16
 Logo
2:25 pm - 1:25 amIAD-POS
11h 00m1 stop
 Logo
3:44 am - 4:20 amPOS-IAD
24h 36m1 stop
Fri, May 16 - Sat, Jun 14
 Logo
9:45 am - 1:25 amIAD-POS
39h 40m2 stops
 Logo
3:44 am - 12:29 amPOS-IAD
20h 45m1 stop
Thu, May 15 - Thu, May 22
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KAYAK's insights & trends for Dulles Intl to Port of Spain flights

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

What’s the cheapest day of the week to fly from Washington Dulles Airport to Port of Spain?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Port of Spain clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Washington Dulles Airport to Port of Spain, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Port of Spain, Thursday is the cheapest day to fly and Monday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Port of Spain, 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 Washington, D.C. Dulles Intl Airport to Port of Spain is November, where tickets cost $364 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $931 and $896 respectively.

Good to know

Low seasonOctober
High seasonSeptember
Cheapest flight$185
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 32% lower on average.
Flight from Washington Dulles Airport to Port of Spain

When to book flights from Dulles Intl to Port of Spain

Are your dates flexible? Find out the best times to travel from Dulles Intl to Port of Spain 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 Washington Dulles Airport to Port of Spain flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Port of Spain was $185 for a one-way ticket and $327 for a round-trip.

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

    Yes, you’ll need a passport to travel to Port of Spain from Washington Dulles Airport.

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

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

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

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

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

    Star Alliance, and oneworld are the airline alliances operating flights between Washington Dulles Airport and Port of Spain, with Star Alliance being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Port of Spain are Copa Airlines and United Airlines. With an average price for the route of $584 and an overall rating of 7.5, Copa Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $595 and an overall rating of 7.4.

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

    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 Washington Dulles Airport to Port of Spain.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Port of Spain from Washington Dulles Airport 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 Washington Dulles Airport to Port of Spain?

    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 Port of Spain with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and POS 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 Washington Dulles Airport to Port of Spain?

    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 Port of Spain from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 3 airlines serving from Dulles Intl to Port of Spain

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Port of Spain. 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 Dulles Intl to Port of Spain? 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.
7.5
Copa AirlinesOverall score based on 1414 reviews
7.4Comfort
6.8Food
8.1Crew
6.8Entertainment
7.8Boarding
Airline reviews

We were in transit from Lima (flight at 1.10am) and we were in stand by in our flight from Panama to Washington. We wait from 4.30 am to 18.30pm in the Airport. The company give us 2 x 15 dollars for eat during the day and a personnal travel voucher of 400 dollars each. Do they buy food one time something in the Airport ??? And one of us live in France so the voucher is not usable. More than 24 hours travel !! And our place were near the toilets, with 8 children around us. The boy behind my seat stamped his feet on my back all the flight. Really Wonder full ! So we are totally unhappy with our travel. Thanks Copa Airlines....

2.0 MediocreCec, Apr 2025PTY - IAD
Read more Copa Airlines reviews

We were in transit from Lima (flight at 1.10am) and we were in stand by in our flight from Panama to Washington. We wait from 4.30 am to 18.30pm in the Airport. The company give us 2 x 15 dollars for eat during the day and a personnal travel voucher of 400 dollars each. Do they buy food one time something in the Airport ??? And one of us live in France so the voucher is not usable. More than 24 hours travel !! And our place were near the toilets, with 8 children around us. The boy behind my seat stamped his feet on my back all the flight. Really Wonder full ! So we are totally unhappy with our travel. Thanks Copa Airlines....

It would have been better if they don't separate families in seating. We were seated in the aile row in the middle of a family of four. It would have been better if they they seat the family of four together than separated.

No headphones given for inflight entertainment. I missed my flight from the previous day and the customer service agent tried to extort an additional $100.00 US from me for missing my flight. Really?!

It was reasonably comfortable trip considering its duration (7 hours). Crew was very good and friendly, seats very more comfortable than other planes. Only negative comment would be that the bathroom light did not get its full brightness 🙃

It was good, plane is a bit older so seats are somewhat flat

Well the airline was fine. The only thing is I was charged for a checked in luggage. But when I reserved the ticket it showed a check in bag allowed. Who can I get in contact with for reimbursement.? The airline said I had to speak to whoever I booked ticket with.

At JFK the Security line was extremely long and few checkpoints open.

Horrible food. No wine or any other alcohol is served on the flight. Water is not served often and they refused when I asked for water in two cups. On the other hand, both going and coming back flights were on time.

Seats are getting smaller and smaller...and as hard as a rock , mediocre entertainment

Very good flight and crew Food was a surprise on a short flight

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

The flight was initially delayed, then cancelled. American Airlines says the cancellation was weather related, though the actual weather was not bad in both Washington and Providence and between. There were very few cancellations that day. In fact, AA2120 from Washington, DC to Boston flew with a minor delay at about the same time. So, the weather somehow affected only this particular flight AA5230. The next available flight was the following morning. The American Airlines refused to reimburse accommodation (hotel at DCA)

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

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