$114 Cheap Flights from Washington (IAD) to Ponce (PSE)

View $114 flight on Sat, Aug 23, 2025Opens in a new window

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

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Cheap Flights from Washington to Ponce (IAD-PSE)

Prices were available within the past 7 days and start at $114 for one-way flights and $238 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Sep 20 - Mon, Sep 22
IAD
Washington
PSE
Ponce
$238 Roundtrip, found 13 hours ago
$238
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Sat, Sep 20 from Washington to Ponce, returning Mon, Sep 22, priced at $238 found 13 hours ago
Frontier Airlines
Sat, Aug 9 - Wed, Aug 13
IAD
Washington
PSE
Ponce
$243 Roundtrip, found 2 days ago
$243
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Aug 9 from Washington to Ponce, returning Wed, Aug 13, priced at $243 found 2 days ago
Frontier Airlines
Sun, Aug 10 - Wed, Aug 13
IAD
Washington
PSE
Ponce
$246 Roundtrip, found 10 hours ago
$246
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Sun, Aug 10 from Washington to Ponce, returning Wed, Aug 13, priced at $246 found 10 hours ago
Frontier Airlines
Thu, Sep 18 - Sun, Sep 21
IAD
Washington
PSE
Ponce
$248 Roundtrip, found 13 hours ago
$248
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Thu, Sep 18 from Washington to Ponce, returning Sun, Sep 21, priced at $248 found 13 hours ago
Frontier Airlines
Sat, Aug 9 - Thu, Aug 14
IAD
Washington
PSE
Ponce
$254 Roundtrip, found 2 days ago
$254
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Aug 9 from Washington to Ponce, returning Thu, Aug 14, priced at $254 found 2 days ago
Frontier Airlines
Fri, Aug 15 - Fri, Sep 5
IAD
Washington
PSE
Ponce
$256 Roundtrip, found 2 days ago
$256
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, Aug 15 from Washington to Ponce, returning Fri, Sep 5, priced at $256 found 2 days ago
Frontier Airlines
Fri, Dec 5 - Sun, Dec 14
IAD
Washington
PSE
Ponce
$264 Roundtrip, found 2 days ago
$264
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, Dec 5 from Washington to Ponce, returning Sun, Dec 14, priced at $264 found 2 days ago
Frontier Airlines
Sat, Sep 20 - Fri, Oct 10
IAD
Washington
PSE
Ponce
$278 Roundtrip, found 2 days ago
$278
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Sep 20 from Washington to Ponce, returning Fri, Oct 10, priced at $278 found 2 days ago
Frontier Airlines
Sun, Nov 16 - Sat, Dec 6
IAD
Washington
PSE
Ponce
$286 Roundtrip, found 2 days ago
$286
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, Nov 16 from Washington to Ponce, returning Sat, Dec 6, priced at $286 found 2 days ago
Frontier Airlines
Thu, Sep 25 - Fri, Oct 10
IAD
Washington
PSE
Ponce
$288 Roundtrip, found 2 days ago
$288
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Sep 25 from Washington to Ponce, returning Fri, Oct 10, priced at $288 found 2 days ago
Frontier Airlines
Thu, Sep 18 - Sun, Sep 28
IAD
Washington
PSE
Ponce
$294 Roundtrip, found 5 days ago
$294
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Thu, Sep 18 from Washington to Ponce, returning Sun, Sep 28, priced at $294 found 5 days ago
Flights from Washington (IAD) to Ponce (PSE)
Origin airport
Washington Dulles Intl.
Destination airport
Mercedita
Airlines serving
Frontier Airlines
Roundtrip price
$238
Distance
1587 mi

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 September. 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 $114 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.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Mercedita Airport (PSE) cost?
Discover the latest flight deals from IAD to PSE by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAD to PSE?
The cheapest flights from IAD to PSE are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAD to PSE?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from IAD to PSE. Sort your results by "Price (lowest to highest)" to snap up a great deal.
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.

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*Available to One Key members.