HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Port of Spain

$161+ Cheap flights from Reagan-National (DCA) to Port of Spain (POS)

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — POS
Apr 16 — Apr 231
Thu 4/16
Thu 4/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Port of Spain with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Reagan-National to Port of Spain

Cheapest flights from Reagan-National to Port of Spain
Explore the most affordable flight options available from Reagan-National to Port of Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 17, 2026.

This Air Canada deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:59 am
DCA
-
POS
1 stop17h 21m
Air Canada
Thu 4/161:20 am
POS
-
DCA
1 stop21h 23m
Air Canada
Deal found 3/13$388
This Air Canada deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:55 pm
DCA
-
POS
2 stops35h 25m
Air Canada
Tue 4/281:20 am
POS
-
DCA
1 stop18h 33m
Air Canada
Deal found 3/16$398
This Gotogate deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/116:50 pm
DCA
-
POS
1 stop29h 30m
Air Canada
Sun 4/191:20 am
POS
-
DCA
2 stops20h 35m
Air Canada
Deal found 3/16$401
This Mytrip deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/216:00 am
DCA
-
POS
2 stops42h 20m
Air Canada
Sun 4/191:20 am
POS
-
DCA
1 stop21h 23m
Air Canada
Deal found 3/13$403
This Air Canada deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:40 am
DCA
-
POS
1 stop14h 40m
Air Canada
Sun 4/121:20 am
POS
-
DCA
1 stop18h 33m
Air Canada
Deal found 3/17$408
This Expedia deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:59 am
DCA
-
POS
1 stop17h 21m
Air Canada
Sun 4/121:20 am
POS
-
DCA
1 stop18h 33m
Air Canada
Deal found 3/14$413

Find flight deals from Reagan-National to Port of Spain

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Port of Spain (POS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$388
(Air Canada)

One-way from

$161
(Mytrip)

Popular in

February

Cheapest in

October

Average price

$681
Provider with most accurate pricing for Washington, D.C. Reagan-National-Port of Spain Piarco Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Port of Spain Piarco Intl flights.
Search Deals
From Washington, D.C. Reagan-National to Port of Spain Piarco Intl
Search Deals
One-way flight from Washington, D.C. Reagan-National to Port of Spain Piarco Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($133 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Port of Spain that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 17, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Port of Spain that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Fri 4/10

6:00 am-12:20 am

2 stops18h 20m

Port of Spain Piarco Intl

Thu 4/16

1:20 am-6:03 pm

1 stop16h 43m

$391

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Sat 4/11

6:50 pm-12:20 am

1 stop29h 30m

Port of Spain Piarco Intl

Fri 4/17

1:20 am-9:55 pm

2 stops20h 35m

$401

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Thu 5/7

6:00 am-11:23 pm

1 stop17h 23m

Port of Spain Piarco Intl

Sun 5/10

12:30 am-11:58 pm

1 stop23h 28m

$590

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Fri 5/1

12:40 pm-11:23 pm

1 stop10h 43m

Port of Spain Piarco Intl

Sun 5/3

12:30 am-1:35 pm

1 stop13h 05m

$600

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Tue 5/19

8:30 am-11:23 pm

1 stop14h 53m

Port of Spain Piarco Intl

Mon 5/25

12:30 am-11:56 am

1 stop11h 26m

$600

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Thu 5/7

6:00 am-11:23 pm

1 stop17h 23m

Port of Spain Piarco Intl

Fri 5/15

12:30 am-3:59 pm

1 stop15h 29m

$600

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Thu 4/23

8:30 am-11:23 pm

1 stop14h 53m

Port of Spain Piarco Intl

Sun 5/3

12:30 am-6:50 pm

1 stop18h 20m

$600

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Thu 7/16

10:58 am-11:23 pm

1 stop12h 25m

Port of Spain Piarco Intl

Sun 7/19

12:30 am-11:56 am

1 stop11h 26m

$600
Quickest round-trip

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Wed 7/15

8:20 am-11:23 pm

1 stop15h 03m

Port of Spain Piarco Intl

Thu 7/23

2:00 am-10:23 am

1 stop8h 23m

$600

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Fri 5/1

7:46 pm-2:32 pm

2 stops18h 46m

Port of Spain Piarco Intl

Tue 6/30

7:00 am-8:00 pm

2 stops13h 00m

$604

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Reagan-National to Port of Spain

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Port of Spain in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Port of Spain flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Port of Spain flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Port of Spain flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Port of Spain flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Port of Spain flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Port of Spain

Have a flexible travel schedule? Discover the best time to fly to Port of Spain from Reagan-National 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 Washington, D.C. Reagan-National Airport to Port of Spain

How far ahead should I book a flight from Washington, D.C. Reagan-National Airport to Port of Spain?

Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to Port of Spain. Price data was last updated on March 13, 2026.

The price you pay for your flight from Washington, D.C. Reagan-National Airport to Port of Spain may vary depending on when you book. For the best chance of a lower fare, look to book 52 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Port of Spain?

Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Port of Spain (average of $372). Flying from Washington, D.C. Reagan-National Airport to Port of Spain in February is currently the most expensive (average of $653). 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.

How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport to Port of Spain?

Reviews of airlines servicing Port of Spain

Get insights into the airlines that provide service to Port of Spain. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Port of Spain. Reviews last updated March 17, 2026.
Get a feel of what it's like to fly with United Airlines,JetBlue, andAmerican Airlines from Washington, D.C. Reagan-National Airport to Port of Spain by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,432 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,432 reviews
United Airlines
7.4
Good
9,432 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
JetBlue
7.2
Good
2,906 reviews
United Airlines
7.4
Good
9,432 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,467 reviews
United Airlines
7.4
Good
9,432 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Port of Spain. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Port of Spain from Washington, D.C. Reagan-National?

    Located just 12.6 mi from the city center, Port of Spain Piarco Intl is the airport most travelers will use when flying to Port of Spain from Washington, D.C. Reagan-National. Booking flights from Washington, D.C. Reagan-National to Piarco Intl (POS) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Reagan-National from 3 different airlines.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Port of Spain?

    Departing from Washington, D.C. Reagan-National Airport to Port of Spain will take you 17h 21m. The distance from Washington, D.C. Reagan-National Airport to Port of Spain is about 2178 mi.

  • What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Port of Spain round-trip?

    Flying on United Airlines is currently your cheapest option to Port of Spain, with prices starting at $378. Additional round-trip tickets that might be worth considering are offered by American Airlines and JetBlue, with the lowest prices starting at $378 and $388, respectively. United Airlines is 39% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Port of Spain one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $160. American Airlines flights start at $196 while deals on United Airlines start at $196 one-way.

  • Can I find deals for flights from Reagan-National to Port of Spain that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Port of Spain flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Port of Spain?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Port of Spain.

  • Can I find deals for business class flights from Reagan-National to Port of Spain?

    Yes. Cheapflights offers flight deals from Reagan-National to Port of Spain 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 Washington, D.C. Reagan-National Airport to Port of Spain?

    Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Port of Spain (average of $372). Flying from Washington, D.C. Reagan-National Airport to Port of Spain in February is currently the most expensive (average of $653). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Reagan-National to Port of Spain

See prices for flight routes from nearby airports that may be better suited for you.
Baltimore to Port of Spain flights

Top 3 airlines flying from Reagan-National to Port of Spain

Discover the top 3 airlines that operate flights from Reagan-National to Port of Spain. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$378Average$506FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$378Average$595FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$388Average$700FlexibilityNo cancel feeOn-time62%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.