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Port of Spain

$193+ 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 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — POS
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to Port of Spain Piarco Intl are usually found in October or January, booked 68 days in advance, depart on a Saturday or Wednesday and return on a Thursday

Cheap 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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$379
(United Airlines)

One-way from

$193
(Air Canada)

Popular in

June

Cheapest in

October

Average price

$393
Provider with most accurate pricing for Washington, D.C. Reagan-National-Port of Spain Piarco Intl flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Port of Spain Piarco Intl flights.
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From Washington, D.C. Reagan-National to Port of Spain Piarco Intl
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One-way flight from Washington, D.C. Reagan-National to Port of Spain Piarco Intl
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Highest demand for flights based on searches. 9% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 16, 2025.

This American Airlines deal was found by Cheapflights users on 10/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:59 pmDCA - POS
1 stop18h 31mAmerican Airlines
Fri 11/287:19 amPOS - DCA
1 stop18h 05mAmerican Airlines
Deal found 10/16$379
This United Airlines deal was found by Cheapflights users on 10/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:00 amDCA - POS
1 stop17h 23mUnited Airlines
Mon 12/151:30 amPOS - DCA
1 stop15h 28mUnited Airlines
Deal found 10/14$389
This American Airlines deal was found by Cheapflights users on 10/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:00 amDCA - POS
1 stop15h 39mAmerican Airlines
Fri 11/217:19 amPOS - DCA
1 stop18h 05mAmerican Airlines
Deal found 10/15$394
This American Airlines deal was found by Cheapflights users on 10/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1310:15 amDCA - POS
2 stops12h 24mAmerican Airlines
Thu 11/207:19 amPOS - DCA
1 stop18h 05mAmerican Airlines
Deal found 10/14$398
This American Airlines deal was found by Cheapflights users on 10/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:59 pmDCA - POS
1 stop18h 31mAmerican Airlines
Mon 11/174:30 pmPOS - DCA
1 stop21h 12mAmerican Airlines
Deal found 10/14$403
This United Airlines deal was found by Cheapflights users on 10/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3112:50 pmDCA - POS
1 stop10h 33mUnited Airlines
Sat 11/11:32 amPOS - DCA
1 stop10h 57mUnited Airlines
Deal found 10/16$409
This American Airlines deal was found by Cheapflights users on 10/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:49 amDCA - POS
1 stop7h 36mAmerican Airlines
Tue 10/287:00 amPOS - DCA
2 stops12h 55mAmerican Airlines
Deal found 10/14$413
This American Airlines deal was found by Cheapflights users on 10/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1711:44 amDCA - POS
1 stop9h 36mAmerican Airlines
Sun 10/197:00 amPOS - DCA
1 stop10h 43mAmerican Airlines
Deal found 10/14$414
This United Airlines deal was found by Cheapflights users on 10/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:15 amDCA - POS
1 stop15h 08mUnited Airlines
Sun 12/141:30 amPOS - DCA
1 stop18h 13mUnited Airlines
Deal found 10/15$416
This American Airlines deal was found by Cheapflights users on 10/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:00 amDCA - POS
1 stop15h 20mAmerican Airlines
Sun 10/267:00 amPOS - DCA
2 stops12h 58mAmerican Airlines
Deal found 10/15$418

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 October 16, 2025.
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

Reagan-National

Fly to

Port of Spain

Route

Depart

Return

Price

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Fri 11/14

6:00 am-12:23 am

1 stop17h 23m

Port of Spain Piarco Intl

Thu 11/20

1:30 am-6:42 pm

1 stop18h 12m

$379

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Thu 12/11

6:00 am-12:23 am

1 stop17h 23m

Port of Spain Piarco Intl

Mon 12/15

1:30 am-3:58 pm

1 stop15h 28m

$389

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Sat 11/8

12:50 pm-12:23 am

1 stop10h 33m

Port of Spain Piarco Intl

Sat 11/15

1:30 am-11:29 am

1 stop10h 59m

$394

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Fri 10/31

11:00 am-11:23 pm

1 stop12h 23m

Port of Spain Piarco Intl

Sun 11/9

1:30 am-6:42 pm

1 stop18h 12m

$409

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Fri 10/31

11:00 am-11:23 pm

1 stop12h 23m

Port of Spain Piarco Intl

Sat 11/1

1:32 am-4:58 pm

1 stop15h 26m

$409

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Thu 10/30

8:15 am-11:23 pm

1 stop15h 08m

Port of Spain Piarco Intl

Sun 11/2

1:30 am-3:58 pm

1 stop15h 28m

$409

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Thu 10/23

6:00 am-11:23 pm

1 stop17h 23m

Port of Spain Piarco Intl

Sun 11/2

1:30 am-6:42 pm

1 stop18h 12m

$409

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Fri 10/31

8:15 am-11:23 pm

1 stop15h 08m

Port of Spain Piarco Intl

Sun 11/2

1:30 am-6:42 pm

1 stop18h 12m

$409

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Wed 11/5

11:00 am-12:23 am

1 stop12h 23m

Port of Spain Piarco Intl

Sun 11/9

1:30 am-1:49 pm

1 stop13h 19m

$409

Washington, D.C.Port of Spain

DCA - POS

DCAPOS

Washington, D.C. Reagan-National

Fri 11/21

6:00 am-1:10 am

2 stops18h 10m

$193

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 14 results
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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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*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 October 10, 2025.

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 68 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, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Port of Spain (average of $346). Flying from Washington, D.C. Reagan-National Airport to Port of Spain in June is currently the most expensive (average of $411). 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.

What is the cheapest time of day to fly from DCA to POS?

Find hourly flight availability from Reagan-National to Port of Spain. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Reagan-National Airport to Port of Spain in the evening. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the morning.

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 October 16, 2025.
Get a feel of what it's like to fly with United Airlines and American 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
8,982 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,982 reviews
United Airlines
7.4
Good
8,982 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.2
Good
11,043 reviews
United Airlines
7.4
Good
8,982 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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 2 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 23m. 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 American Airlines is currently your cheapest option to Port of Spain, with prices starting at $351. Another option worth looking into is United Airlines, starting at $378 round trip. American Airlines is 42% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Port of Spain (average of $346). Flying from Washington, D.C. Reagan-National Airport to Port of Spain in June is currently the most expensive (average of $411). 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

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Alternative routes for Reagan-National to Port of Spain

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Port of Spain flights
Baltimore to Port of Spain flights
Reagan-National to Scarborough flights
Dulles Intl to Scarborough flights
Baltimore to Scarborough flights

Top 2 airlines flying from Reagan-National to Port of Spain

Discover the top 2 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$351Average$584FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$378Average$487FlexibilityNo cancel feeOn-time69%

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