−25%Round trip

Boston to San Juan 🇵🇷

$275$368

Departs: Sun, Jan 10
Return: Thu, Jan 14
Stops: 1 stop
Airline: Frontier Airlines
Duration: 4h 5m

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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 18h 20m of work.

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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 🇵🇷

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Boston to San Juan 🇵🇷

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🇺🇸Lebanon

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Boston to San Juan 🇵🇷

Other dates on this route

More from Boston

🇺🇸Lebanon

🇺🇸Fort Lauderdale

Never miss a price drop

🇺🇸Rutland

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🇺🇸New York

🇺🇸Buffalo

Lebanon

Fort Lauderdale

Lebanon

Fort Lauderdale

Rutland

Washington

New York

Buffalo