United flights from Puerto Rico to the Republic of Singapore from $ 1,144*
Book the best deals from Puerto Rico to the Republic of Singapore
San Juan (SJU)to
Singapore (SIN)*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.
Best business class fares from Puerto Rico to the Republic of Singapore
San Juan (SJU)to
Roundtrip
Business
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.