San Juan: cheap flights and the best time to go
Beaches and old forts, no passport needed from the U.S. Puerto Rico · Beaches, Islands
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Cheapest round trip
Safety level
U.S. U.S. destination: no State Department travel advisory
The State Department's travel advisories
Levels: 1 Exercise normal precautions · 2 Exercise increased caution · 3 Reconsider travel · 4 Do not travel. Read the advisory before you book; it can change. Checked 2026-10-07.
Best time to go
For the weather: February, March, January (beach weather: highs of 78–90°F, not too much rain). With fares from your airport, the best months weigh weather 60% and price 40%.
| Month | High | Low | Rain | Cheapest round trip from JFK |
|---|---|---|---|---|
| January (a best month) | 84°F | 70°F | 4.8 in | … |
| February (a best month) | 84°F | 70°F | 3.7 in | … |
| March (a best month) | 85°F | 71°F | 3.7 in | … |
| April | 87°F | 73°F | 5.6 in | … |
| May | 88°F | 75°F | 8.2 in | … |
| June | 90°F | 76°F | 5.2 in | … |
| July | 89°F | 76°F | 7.8 in | … |
| August | 90°F | 77°F | 8.5 in | … |
| September | 90°F | 76°F | 7.3 in | … |
| October | 90°F | 75°F | 6.8 in | … |
| November | 87°F | 73°F | 9.7 in | … |
| December | 85°F | 71°F | 6.5 in | … |
Typical daily high and low and total rain, 1991–2020: NOAA NCEI GHCN-Daily, station TOA BAJA LEVITTOWN (7 km away). ★ = the best three months. Fares are the cheapest found for trips leaving that month in the next year.
Prices are per seat for a round trip in economy; with more than one traveler they're the total for your party (babies under 2 on a lap need no seat). The booking site shows the final price for everyone.