Boston (BOS) to San Juan (Any) in December 2026

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CheapestLowHigherTypical $348

$500$1,000$1,500

Decemberfrom $290 · 31 trips

Boston (BOS) to San Juan (Any): what SlickTrip has seen

Cheapest economy round trip (8 nights) in December 2026: $290 leaving Tue, Dec 8, for 1 traveler.
27 price drops on economy fares in the last 30 days, caught for travelers watching this route. The typical drop was $80 a traveler (9.3%).
SlickTrip travelers are watching 8 trips on this route.
Airlines in the fares we watched: JetBlue, Frontier, Delta.

From SlickTrip's own price alerts and watched trips, as of Nov 10.

Boston (BOS) to San Juan (Any) by month

November 2026
December 2026
January 2027
February 2027
March 2027
April 2027
May 2027
June 2027
July 2027
August 2027
September 2027

Cheap economy Class Flights from Boston (BOS) to San Juan (Any) December

Find the best deals on economy class flights. Compare prices for direct flights, one-stop, and multi-stop options.

Boston (BOS) to San Juan (Any) in December 2026

Cheapest round trip of 6, 8, 11 nights fare in December 2026: $290 on 2026-12-08, for 1 traveler.

Why Choose Economy Class Flights from Boston (BOS) to San Juan (Any)?

Fares across the airlines on the route in one search
Nonstop and connecting flights side by side
A month of fares at a glance for december travel
Price alerts: we watch the fare and alert you when it drops

Planning a trip from Boston (BOS) to San Juan (Any) in december? SlickTrip shows the cheapest economy fares across airlines, nonstop or with stops. Set an alert and we watch the route for you, then email you when the price drops. Booking happens on the airline's or travel site's own page.

October 2027

Boston (BOS) to San Juan (Any): what SlickTrip has seen

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