Washington to San Juan flights
Round trip · Economy · Prices per person in USD
Prices updated
Prices are low right now
$258 is $32 (11%) below the usual $290 for Washington → San Juan.
Buy now or wait? We're still learning this route. We have 1 day of prices so far and need about a week to say whether to book or wait.
Not ready to book? Get an email when Washington → San Juan drops below your price.Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| September 2026 | No fares found yet |
| October 2026 | $290 |
| November 2026 | $258 (cheapest month) |
| December 2026 | $629 |
Cheapest dates in the next 4 months
Round trip, per person-
Nov 6 – 13 7 nights · leave Fri$258 −11% vs usual$258 −11% vs usual Book
Frontier Airlines 1 stop · 5h 26m -
Oct 9 – 13 4 nights · leave Fri$290$290 Book
Frontier Airlines 1 stop · 5h 40m
-
Dec 30 – Jan 3, 2027 4 nights · leave Wed$629 +117% vs usual$629 +117% vs usual Book
Frontier Airlines 2 stops · 8h 10m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Plan the rest of your trip
San Juan · Nov 6 – 13Travel insurance · EKTA Airport transfer · Kiwitaxi
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Washington to San Juan: questions
How much is a flight from Washington to San Juan?
The cheapest round trip we have found right now is $258, leaving November 6 and returning November 13. The usual price on this route is about $290, so this fare is 11% less. Prices are per person, economy, in USD.
What is the cheapest month to fly from Washington to San Juan?
November 2026, with round trips from $258. The most expensive month in our data is December (from $629). Based on the 3 months ahead we have prices for.
About this route
We track round-trip economy fares from Washington (United States) to San Juan (Puerto Rico) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $258, departing November 6 and returning November 13, about 11% below the usual $290. The cheapest month to fly in our data is November, from $258. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.