Long haul · Stopover · Modern. Compare cheap flights to Singapore from US airports — flight time 17h 30m from San Francisco International.
Compare flights to Singapore →Singapore is a long-haul destination from the US, suited to a long haul and stopover trip. The 17h 30m flight from San Francisco International (SFO) makes it a realistic one- or two-week trip, with onward connections from major hubs (JFK, MIA, LAX, ORD, ATL) opening up additional departure options. Round-trip fares sit in the premium long-haul bracket on this corridor, with prices from $899 when timing and routing align.
January typically delivers the cheapest fares (around $1528 round-trip on average), with prices climbing through August when seasonal demand peaks ($2876+). On the ground, Singapore dollar (SGD) is the local currency and English, Mandarin, Malay, Tamil the dominant language — English coverage is solid in tourist quarters and at the airport. Visa: Visa-free for US passport holders up to 90 days. SG Arrival Card required online within 3 days of arrival. 8-14 weeks ahead is the long-haul sweet spot — earlier doesn't reliably help, later starts to hurt; last-minute bookings on this route can run two to three times the cheapest fare we see.
By Louisa Lowe, Lead Writer · Updated for 2026.
Always confirm visa and entry requirements at travel.state.gov before booking.
From San Francisco International (SFO), nonstop flights to Singapore take approximately 17h 30m. Total journey time depends on your departure airport, any connections, and seasonal headwinds.
Visa-free for US passport holders up to 90 days. SG Arrival Card required online within 3 days of arrival. Always check travel.state.gov for the latest entry requirements before booking.
The best months to visit Singapore are All year, when conditions are most comfortable for sightseeing and weather is settled.
Singapore dollar (SGD) — most major hotels and restaurants in Singapore accept card payments, but cash is useful for smaller establishments and tipping.
English, Mandarin, Malay, Tamil. English is widely understood in tourist areas, hotels, and major restaurants.
