Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Singapore to Puerto Rico as you normally would.
Singapore Changi
San Juan Luis Munoz Marin Intl
2 stops
38h 56mSan Juan Luis Munoz Marin Intl
Singapore Changi
2 stops
41h 21mUnited Airlines
Singapore Changi
San Juan Luis Munoz Marin Intl
2 stops
30h 09mSan Juan Luis Munoz Marin Intl
Singapore Changi
2 stops
64h 25mUnited Airlines
Singapore Changi
San Juan Luis Munoz Marin Intl
2 stops
37h 28mSan Juan Luis Munoz Marin Intl
Singapore Changi
2 stops
51h 45mUnited Airlines
Singapore Changi
San Juan Luis Munoz Marin Intl
2 stops
38h 56mSan Juan Luis Munoz Marin Intl
Singapore Changi
2 stops
41h 21mUnited Airlines
Singapore Changi
San Juan Luis Munoz Marin Intl
2 stops
30h 09mSan Juan Luis Munoz Marin Intl
Singapore Changi
2 stops
64h 25mUnited Airlines
Singapore Changi
San Juan Luis Munoz Marin Intl
2 stops
37h 28mSan Juan Luis Munoz Marin Intl
Singapore Changi
2 stops
51h 45mUnited Airlines
Singapore Changi
San Juan Luis Munoz Marin Intl
2 stops
41h 30mSan Juan Luis Munoz Marin Intl
Singapore Changi
2 stops
35h 21mJapan Airlines
Singapore Changi
San Juan Luis Munoz Marin Intl
2 stops
28h 16mSan Juan Luis Munoz Marin Intl
Singapore Changi
2 stops
35h 21mJapan Airlines
Due to the rapidly changing circumstances due to COVID-19, airlines like United Airlines flying from Singapore to Puerto Rico have implemented new flexible change policies.
Yes, there are multiple flights from Singapore to Puerto Rico for under S$ 1,600. The cheapest flight booked recently is on United Airlines for just S$ 1,556, but on average you can expect to pay S$ 2,409.