San Francisco International to Princess Juliana
3798 miles great-circle distance, typically flown in 8h 02m with 10 airlines operating direct service from San Francisco International (SFO) to Princess Juliana (SXM). Cheapest fares are usually in January (around $449 return), with peak prices in August (around $1347). Departures on a Tuesday tend to undercut weekend prices on this corridor.
Flying from San Francisco International
San Francisco International is United's main Pacific hub and Alaska Airlines' largest non-Seattle base. Four terminals form a single ring connected by the AirTrain shuttle, with BART running from the dedicated airport station directly to Powell Street downtown in around 30 minutes for $10. Heavy fog from May through August causes chronic morning delays — book mid-day departures during summer where possible. International long-haul to Asia and Europe is the deepest on the West Coast.
Arriving in St. Maarten
Princess Juliana International on Sint Maarten is the dual-island Caribbean nation's primary airport — famous for its Maho Beach approach where aircraft pass meters above sunbathers. The terminal sits 3 km east of Philipsburg. Taxis are the only practical transfer option (~$15–$25 to Philipsburg). Peak demand mirrors the rest of the Caribbean — December–April; cheapest fares come in September–October.
Who flies SFO to SXM?
| Airline | IATA | Flight time | Cabin |
| United Airlines | UA | 8h 02m | Economy |
| Singapore Airlines | SQ | 8h 02m | Economy |
| Cathay Pacific | CX | 8h 02m | Economy |
| ANA | NH | 8h 02m | Economy |
| Japan Airlines | JL | 8h 02m | Economy |
| Air France | AF | 8h 02m | Economy |
| Lufthansa | LH | 8h 02m | Economy |
| British Airways | BA | 8h 02m | Economy |
| Qantas | QF | 8h 02m | Economy |
| Emirates | EK | 8h 02m | Economy |
10 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Best time to fly SFO→SXM
Synthesised from 12-month price aggregates. Cheapest months in green, peak in red.
Estimated baseline. Prices update on a 30-day cadence as Travelpayouts data refreshes. Cheapest day-of-week typically Tuesday.
San Francisco to St. Maarten FAQs
Direct flights from San Francisco International (SFO) to Princess Juliana (SXM) take approximately 8h 02m for the 3798-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
January is typically the cheapest month on this route, with one-way fares from $449. August is the peak — expect prices 2–3× higher. Book 4–8 weeks ahead for best fares; last-minute prices on this corridor rise sharply inside two weeks of departure.
10 carriers operate direct service from San Francisco International (SFO) to Princess Juliana (SXM): United Airlines, Singapore Airlines, Cathay Pacific, ANA, Japan Airlines and 5 more. Frequencies vary by season and carrier — United Airlines typically operates the highest weekly count on this corridor.
Visa-free for US passport holders up to 90 days. Always check travel.state.gov for the latest entry requirements before booking.
Princess Juliana (SXM) is the primary international airport for St. Maarten. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.