Round trip

Boston to San Juan 🇵🇷

$321$368

Departs: Fri, Jan 8
Return: Fri, Jan 15
Stops: 1 stop
Airline: Frontier Airlines
Duration: 4h 5m

Check this fare →Affiliate link — we may earn a commission, at no extra cost to you. How we make money

Fare expires in --:--:--

Other dates on this route

Cheapest one-way fare by departure dateLow $150 on Mon, Nov 23 · High $230

Work-hours calculator

This flight to San Juan costs you 21h 24m of work.

Your hourly pay$

Also cheap

Never miss a price drop

One short email when a fare drops well below its usual price. No spam, unsubscribe anytime.

Prices come from fares travellers found in the last few days and can change at any time. Last updated Thu, 22 Oct 2026 16:17:21 GMT.

Boston to San Juan 🇵🇷

Other dates on this route

More from Boston

Lebanon

Fort Lauderdale

Never miss a price drop

Boston to San Juan 🇵🇷

Other dates on this route

More from Boston

Lebanon

Fort Lauderdale

Never miss a price drop

Rutland

Washington

New York

Buffalo

Boston to San Juan 🇵🇷

Other dates on this route

More from Boston

🇺🇸Lebanon

🇺🇸Fort Lauderdale

Never miss a price drop

Boston to San Juan 🇵🇷

Other dates on this route

More from Boston

🇺🇸Lebanon

🇺🇸Fort Lauderdale

Never miss a price drop

🇺🇸Rutland

🇺🇸Washington

🇺🇸New York

🇺🇸Buffalo

Lebanon

Fort Lauderdale

Lebanon

Fort Lauderdale

Rutland

Washington

New York

Buffalo