A vibrant, colorful street with decorated buildings and hanging ornaments
37% below the usual fare
Exit Row · Boarding passSeat 14C

Cheap flights BostonSan Juan

From
BOSBoston
To
SJUSan Juan
Travel
December 2026
Flight
1 stop, return

Fare from Boston

US$388

Usually about US$617

-37%vs the usual price

Get the dates and the link

Price seen 29 Oct 2026 · fares change fast and can sell out

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An aerial view of an island in the middle of the ocean
Nils Huenerfuerst / Unsplash
City near body of water during daytime
Wei Zeng / Unsplash

Why go

San Juan.

Spanish forts, the El Yunque rainforest and a bay that glows at night.

Best timeDecember to April, the drier months.

  • Beach
  • Big city

Three things to do

  1. Old San Juan's forts
  2. El Yunque rainforest
  3. The bioluminescent bay
Distance
2,698 km
Flight
1 stop
Trip
Return

Make it a trip.

Also boarding from Boston.

Every deal from Boston

Prices are the cheapest fare we found from Boston, in USD, for one adult, and can change when you click. Some links are affiliate links: they never change which deals we send or what you pay. How we make money.