Cheap Flights from Washington Dulles Airport to San Juan from $240 Return

Flight deals from Washington Dulles Airport to San Juan

Looking for cheap tickets from Washington Dulles Airport to San Juan, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

San Juan.$240 per passenger.Departing Fri, 2 Jan, returning Fri, 9 Jan.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Washington Dulles on Fri, 2 Jan, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Frontier Airlines departs from San Juan Luis Munoz Marin on Fri, 9 Jan, arriving in Washington Dulles.Price includes taxes and charges.From $240, select.

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Flying from Washington Dulles Airport to San Juan

Arm yourself with these facts on the fly.

Cheapest flight found	$240
Cheapest month to fly	January
Average flight time	3 hrs, 54 mins
Average flights per week	37
Most popular airline	Air Canada

How to find cheap flights from Washington Dulles Airport to San Juan

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Washington Dulles Airport to San Juan. Other savvy travellers recently found return flights from $240 and one-way tickets from $85. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in January

The cheapest time to fly from Washington Dulles Airport to San Juan is currently January.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Washington Dulles Airport to anywhere you choose in San Juan.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Washington Dulles Airport to your chosen airport in San Juan go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the San Juan Airport to San Juan flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

Are there any direct flights from Washington Dulles Airport to San Juan?

Yes - direct flights currently operate from Washington Dulles Airport to San Juan Luis Munoz Marin Airport in San Juan.

What is the average price of a flight from Washington Dulles Airport to San Juan?

We looked at all of the upcoming return flights from Washington Dulles Airport to San Juan we could find over the next 12 months. It looks like $240 is the best price. This is good, compared to the average San Juan ticket price of $240.

What is the cheapest month to fly from Washington Dulles Airport to San Juan?

The cheapest month to fly from Washington Dulles Airport to San Juan is currently January.

Which upcoming date is cheapest to fly from Washington Dulles Airport to San Juan on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington Dulles Airport to San Juan on Friday, 2 January 2026.

If I'm flying from Washington Dulles Airport, where in San Juan is cheapest to fly into?

If you're flying from Washington Dulles, the cheapest city in San Juan to fly into is San Juan. The cheapest airport serving San Juan at the moment is San Juan Luis Munoz Marin.