SFO to SIN: San Francisco to Singapore

Singapore Airlines operates the world's longest commercial flight on the ultra-long-range A350-900ULR. Economy is 23 in pitch in 3-3-3 — genuinely challenging for 18 hours. Business Class is strongly recommended.

Route Details

Origin: San Francisco International (SFO)
Destination: Changi International (SIN)
Typical duration: 17h 30m – 18h 15m
Distance: 8,446 mi / 13,591 km
Airlines: Singapore Airlines
Aircraft: Airbus A350-900ULR

Best Seats

Economy (23 in pitch) is very tight for 18 hours. Singapore Airlines Business Class (fully flat) available from ~$2,500 or 100,000+ KrisFlyer miles. Bulkhead and exit rows cost premium in economy.

Baggage Tips

Economy includes 2 checked bags (23 kg each). Business Class allows 30 kg per bag. No visa required for US passport holders in Singapore for up to 90 days.