$148 Cheap Flights from Washington (IAD) to Ponce (PSE)

View $148 flight on Thu, Jan 15, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Ponce (PSE-Mercedita)

Cheap Flights from Washington to Ponce (IAD-PSE)

Prices were available within the past 7 days and start at $148 for one-way flights and $301 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, Dec 5 - Sat, Dec 13
IAD
Washington
PSE
Ponce
$301 Roundtrip, found 2 days ago
$301
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, Dec 5 from Washington to Ponce, returning Sat, Dec 13, priced at $301 found 2 days ago
Frontier Airlines
Sat, Jan 10 - Sat, Jan 24
IAD
Washington
PSE
Ponce
$305 Roundtrip, found 1 day ago
$305
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Jan 10 from Washington to Ponce, returning Sat, Jan 24, priced at $305 found 1 day ago
Frontier Airlines
Fri, Dec 5 - Sun, Dec 7
IAD
Washington
PSE
Ponce
$306 Roundtrip, found 2 days ago
$306
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, Dec 5 from Washington to Ponce, returning Sun, Dec 7, priced at $306 found 2 days ago
Frontier Airlines
Sun, Nov 16 - Mon, Nov 24
IAD
Washington
PSE
Ponce
$320 Roundtrip, found 2 days ago
$320
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, Nov 16 from Washington to Ponce, returning Mon, Nov 24, priced at $320 found 2 days ago
Frontier Airlines
Sat, Mar 7 - Sat, Mar 14
IAD
Washington
PSE
Ponce
$329 Roundtrip, found 4 days ago
$329
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sat, Mar 7 from Washington to Ponce, returning Sat, Mar 14, priced at $329 found 4 days ago
Frontier Airlines
Fri, Jan 23 - Sat, Feb 7
IAD
Washington
PSE
Ponce
$335 Roundtrip, found 1 day ago
$335
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Jan 23 from Washington to Ponce, returning Sat, Feb 7, priced at $335 found 1 day ago
Frontier Airlines
Sat, Dec 6 - Sat, Dec 13
IAD
Washington
PSE
Ponce
$351 Roundtrip, found 2 days ago
$351
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Dec 6 from Washington to Ponce, returning Sat, Dec 13, priced at $351 found 2 days ago
Frontier Airlines
Sat, Dec 6 - Fri, Dec 12
IAD
Washington
PSE
Ponce
$356 Roundtrip, found 2 days ago
$356
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Dec 6 from Washington to Ponce, returning Fri, Dec 12, priced at $356 found 2 days ago
Frontier Airlines
Sun, Nov 16 - Fri, Nov 21
IAD
Washington
PSE
Ponce
$361 Roundtrip, found 2 days ago
$361
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, Nov 16 from Washington to Ponce, returning Fri, Nov 21, priced at $361 found 2 days ago
Frontier Airlines
Thu, Jan 15 - Sat, Jan 24
IAD
Washington
PSE
Ponce
$365 Roundtrip, found 1 day ago
$365
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Jan 15 from Washington to Ponce, returning Sat, Jan 24, priced at $365 found 1 day ago

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Mercedita Airport (PSE) cost?
Lock in a cheap one-way flight from $148 or cheap return flight from $301 from Washington Dulles Intl. Airport (IAD) to Mercedita Airport (PSE) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Mercedita Airport (PSE)?
The cheapest month to fly from IAD to PSE is December, when demand is low. Off-peak months are typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Mercedita Airport (PSE)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from IAD to PSE. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Mercedita Airport (PSE)?
There are no daily nonstop flights available from Washington Dulles Intl. Airport (IAD) to Mercedita Airport (PSE). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way before you know it.
What day of the week has the most flights from IAD to PSE?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Mercedita Airport (PSE)?
To arrive at Mercedita Airport (PSE) without delays, opt for a flight that takes off from Washington Dulles Intl. Airport (IAD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Ponce from Washington Dulles Intl. Airport (IAD)?
If you're on a direct flight from Washington Dulles Intl. Airport (IAD) to Ponce, Luis Munoz Marin Intl. Airport (SJU) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Mercedita Airport (PSE) last-minute?
Holding off until right before your break to book a ticket from IAD to PSE often results in higher prices. Although you may find some last-minute offers, there's no guarantee. Keep your travel schedule open for the best chance of getting a bargain.
Is it cheaper to book an IAD to PSE flight and hotel package?
Opting for an IAD to PSE flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our wide range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Mercedita Airport (PSE)?
In most cases, you can reschedule or cancel your IAD to PSE flight. However, there may be additional fees, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you'd like further details, go to our Customer Service portal.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Mercedita
Roundtrip price
$301
Distance
1587 mi

Book with confidence

Washington to Ponce Flights

The cheapest times to fly from Washington to Ponce

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Ponce are during the month of December. You can find some of the cheapest flights from Washington to Ponce with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Ponce

Sunday is one of the best days to book for cheap flights from Washington to Ponce: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Ponce

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Ponce in 2025. You can also book with separate airlines for your outbound and return journeys, from $148 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Ponce flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Ponce airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Ponce Flights

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*Available to One Key members.