{"response": {"Key": "SFO-PR", "orig": {"code": "SFO", "type": "airport", "city": "San Francisco", "fullCity": "San Francisco, California", "airport": "San Francisco Intl Airport"}, "dest": {"code": "PR", "type": "country", "country": "Puerto Rico"}, "faq": {"q0": {"question": "Which cities in Puerto Rico can I fly to from San Francisco?", "answer": "From San Francisco you can fly non-stop to San Juan Luis Muñoz Marín International Airport. One-stop options also reach Aguadilla and Ponce, often connecting through East Coast hubs. San Juan is the main gateway for beaches, history and onward flights or ferries to Vieques and Culebra."}, "q1": {"question": "How long is the flight from San Francisco to Puerto Rico?", "answer": "From San Francisco to San Juan, one-stop flights typically take 9 to 11 hours eastbound and about an hour longer on the return. Trips to other Puerto Rican airports like Aguadilla or Ponce usually require two stops and can exceed 13 hours."}, "q2": {"question": "Are there direct flights from San Francisco to Puerto Rico?", "answer": "There are no non-stop flights from San Francisco to Puerto Rico. Most itineraries connect through major U.S. hubs such as Miami, New York, Dallas, or Atlanta. Total travel time including a layover typically ranges from 9 to 12 hours, depending on the connection."}, "q3": {"question": "Which airlines fly from San Francisco to Puerto Rico?", "answer": "From San Francisco to Puerto Rico you typically fly with United, American, JetBlue, Southwest, Delta, and Spirit via their hubs."}, "q4": {"question": "When is the cheapest time to fly from San Francisco to Puerto Rico?", "answer": "The cheapest months to fly from San Francisco to Puerto Rico are September, October, and August, with late summer and early fall offering the lowest fares overall. Midweek departures — especially Tuesdays — and late-night flights tend to be the most affordable, while Mondays and Saturdays are pricier. Booking about five to six months ahead (roughly 22–25 weeks before departure) typically secures the best price. Peak summer and major holidays like December see the highest fares, so avoiding those periods will help keep costs down.", "methodology": "This 'good deal' estimate shows a representative best price for each departure date across roughly a 12-month window (about 3 months back and 9 months forward). It is built from real flight prices found by Priceline users searching this route, accumulated into a price history for each departure date. Rather than weighting all of that history equally, we apply exponential time decay so recent prices dominate — a price seen yesterday counts almost in full, one from about a month ago roughly a third, and prices from a few months back very little — giving a figure that tracks today's market instead of a stale long-run average. Clear price outliers are removed before any calculation, departure dates with no observations are filled in from nearby dates, and the resulting curve is lightly smoothed so it reads as a clean seasonal trend rather than day-to-day noise. The cheapest day of the week and time of day to depart are drawn from the same large sample of real fares Priceline users found on this route in the last 72 hours, grouped by the day of the week and by the time-of-day window of the outbound departure, with the lowest and average price reported for each. This booking-window guidance is built from the same real flight prices found by Priceline users searching this route, re-grouped by how many days before departure each price was seen (from the departure day out to about 180 days ahead) across the route's price history. At each booking lead time we report the 25th-percentile price — the cheaper end of what travelers were quoted, rather than the rock-bottom minimum (which can be a fluke) or the average (which is pulled up by expensive last-minute fares). The buy-or-wait advice then applies a risk premium that grows as departure approaches, since seat availability shrinks and prices become less predictable; using that adjusted curve we flag windows where waiting is likely to save a meaningful amount (at least $20 or 5%) versus windows where booking now is the better call. Isolated single-day recommendations are filtered out, so the advice only reflects a window that holds for several days in a row. The typical price, the lowest fare, a 'great deal' threshold, and how fares are spread across price bands are summarized from a large sample of the real fares Priceline users found on this route in the last 72 hours, with a small fraction of extreme outlier fares excluded from the range."}, "q5": {"question": "How far in advance should I book flights from San Francisco to Puerto Rico?", "answer": "For flights from San Francisco to Puerto Rico, the best time to book is about 22 to 25 weeks ahead, when average fares hover around $593.", "methodology": "This booking-window guidance is built from the same real flight prices found by Priceline users searching this route, re-grouped by how many days before departure each price was seen (from the departure day out to about 180 days ahead) across the route's price history. At each booking lead time we report the 25th-percentile price — the cheaper end of what travelers were quoted, rather than the rock-bottom minimum (which can be a fluke) or the average (which is pulled up by expensive last-minute fares). The buy-or-wait advice then applies a risk premium that grows as departure approaches, since seat availability shrinks and prices become less predictable; using that adjusted curve we flag windows where waiting is likely to save a meaningful amount (at least $20 or 5%) versus windows where booking now is the better call. Isolated single-day recommendations are filtered out, so the advice only reflects a window that holds for several days in a row."}, "q6": {"question": "What are the most popular cities to visit in Puerto Rico?", "answer": "In Puerto Rico, San Juan is the main entry point with historic Old San Juan and beaches. Rincon draws surfers, Ponce offers colonial architecture, and the islands of Vieques and Culebra are prized for pristine beaches and bioluminescent bays."}, "q8": {"question": "Which airports in Puerto Rico are best to fly into from San Francisco?", "answer": "From San Francisco to Puerto Rico, Luis Muñoz Marín International Airport in San Juan is the primary gateway with the most flight options and connections to other islands. Rafael Hernández Airport in Aguadilla serves the west coast and is closer to surf spots and resorts in Rincón, while Mercedita Airport in Ponce provides access to the south. San Juan is best for onward travel, including short flights to Vieques and Culebra, and has no train network, so rental cars or taxis are common."}, "q12": {"question": "When is the best time of year to visit Puerto Rico?", "answer": "For Puerto Rico, mid-December to April is the dry season and peak travel time, with higher prices. May to November sees fewer crowds and lower rates, but watch for hurricane season from June to November."}, "q13": {"question": "How do I get to San Francisco Intl Airport from the city center?", "answer": "From downtown San Francisco, you can take BART directly to the International Terminal — it’s the fastest and most popular option, with a ride of about 30 minutes and a moderate fare. Ride‑share services like Lyft and Uber pick up on Level 5 of the Domestic Garage, while taxis are available outside Arrivals; both offer door‑to‑door convenience at a higher cost. Driving is also possible, with a free Cell Phone Waiting Lot for pick‑ups and paid parking at the airport.", "toolsUsed": ["article_lookup"], "references": [{"url": "https://flysfo.com/passengers/ground-transportation", "title": "Ground Transportation | San Francisco International Airport", "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico", "time_published": "2026-04-08T21:19:40Z"}, {"url": "https://flysfo.com/de/node/10188", "title": "Ground Transportation | San Francisco International Airport", "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico", "time_published": "2026-04-08T21:19:40Z"}, {"url": "https://en.wikipedia.org/wiki/SFO", "title": "San Francisco International Airport", "time_published": "2026-04-27T05:13:36Z"}, {"url": "https://en.wikipedia.org/wiki/San_Francisco_International_Airport", "title": "San Francisco International Airport", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2026-07-18T07:52:09Z"}, {"url": "https://www.flysfo.com/pt-br", "title": "Home Page | San Francisco International Airport", "time_published": "2026-01-01T00:00:00Z"}]}}}}