Cheap Flights from Washington (DCA) to San Juan (SIG)

Popular airlines from Ronald Reagan Washington National Airport (DCA) to San Juan (SIG-Fernando Luis Ribas Dominicci)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Alternative airports near San Juan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Luis Munoz Marin Intl. SJU. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $288
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city center16 min
Flights from $288
Flights from Washington (DCA) to San Juan (SIG)
Origin airport
Ronald Reagan Washington National
Destination airport
Fernando Luis Ribas Dominicci
Distance
1554 mi

Washington to San Juan Flights

The cheapest times to fly from Washington to San Juan

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 San Juan are during the month of . You can find some of the cheapest flights from Washington to San Juan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to San Juan

Sunday is one of the best days to book for cheap flights from Washington to San Juan: 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 San Juan

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 San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 San Juan 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 San Juan 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 Ronald Reagan Washington National Airport (DCA) to Fernando Luis Ribas Dominicci Airport (SIG) cost?
Grab a cheap one-way flight or cheap return flight from Ronald Reagan Washington National Airport (DCA) to Fernando Luis Ribas Dominicci Airport (SIG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Fernando Luis Ribas Dominicci Airport (SIG)?
Flying in can help you save, as it's the cheapest month for flights between DCA and SIG. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Fernando Luis Ribas Dominicci Airport (SIG)?
To find the cheapest airline that'll fly you from DCA to SIG, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Fernando Luis Ribas Dominicci Airport (SIG)?
There are no daily direct flights available from Ronald Reagan Washington National Airport (DCA) to Fernando Luis Ribas Dominicci Airport (SIG). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from DCA to SIG?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Fernando Luis Ribas Dominicci Airport (SIG)?
To avoid possible delays on the Ronald Reagan Washington National Airport (DCA) to Fernando Luis Ribas Dominicci Airport (SIG) route, travel before 3 PM. Later flights are 22% more likely to be canceled.**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.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to Fernando Luis Ribas Dominicci Airport (SIG) last-minute?
Booking your ticket from DCA to SIG just before your journey is typically more expensive. But if you're flexible with your departure dates and times, you could snag a cheap last-minute fare.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Fernando Luis Ribas Dominicci Airport (SIG)?
Typically, you're able to cancel or reschedule your DCA to SIG flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you want further details, go to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.