WAS - SIG

Find cheap flights from Washington, D.C. to San Juan Isla Grande - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

When to travel
June
Cheapest • 100% price drop
March
Most popular
Good to know
Good to know
+1
+1
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Good to know
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Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to San Juan (WAS-SIG)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to San Juan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to San Juan

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WAS  Washington, D.C. All airports-SIG San Juan Isla Grande
1557 mimulti-stop
Multiple Airlines Logo
SIG  San Juan Isla Grande-WAS Washington, D.C. All airports
1557 mimulti-stop
Multiple Airlines
Booking Insights

KAYAK's insights & trends for Washington, D.C. to San Juan flights

Get data-powered insights and trends into flights from Washington, D.C. to San Juan to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Washington, D.C. to San Juan Isla Grande Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to San Juan Isla Grande Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. to San Juan Isla Grande Airport is June, where tickets cost $0 (return) on average. On the other hand, the most expensive months are January and November, where the average cost of round-trip tickets is $1,300 and $634 respectively.

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Good to know

Low season

February
Best time to beat the crowds with an average 57% drop in price.
Most popular time to fly and prices are also 44% lower on average.

When to book flights from Washington, D.C. to San Juan

Are your dates flexible? Find out the best times to travel from Washington, D.C. to San Juan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington, D.C. to San Juan Isla Grande flights

  • Do I need a passport to fly between Washington, D.C. and San Juan Isla Grande?

    Yes

  • Which aircraft models fly most regularly from Washington, D.C. to San Juan Isla Grande?

    We unfortunately don’t have that data for this specific route.

  • Which is the best airline for flights from Washington, D.C. to San Juan, JetBlue or Frontier?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to San Juan are JetBlue and Frontier. With an average price for the route of $521 and an overall rating of 7.1, JetBlue is the most popular choice. Frontier is also a great choice for the route, with an average price of $371 and an overall rating of 5.6.

  • How does KAYAK find such low prices on flights from Washington, D.C. to San Juan Isla Grande?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to San Juan Isla Grande.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to San Juan Isla Grande?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan Isla Grande from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to San Juan Isla Grande?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan Isla Grande with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to San Juan Isla Grande?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan Isla Grande from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Washington, D.C. to San Juan

Information on your arrival and departure airports

Isla Grande (SIG)