Business Class: San Francisco → SingaporeBusiness
SFO → SIN · UA · Checked multiple times per day
Check your exact dates, free. The seats below were seen recently, not a live check of your trip. Search your dates and we check live and show which programme books each seat most cheaply. Your first 10 searches are free. 🔎 Check my dates: SFO → SIN 🔔 Set an alert Alerts check this route several times a day and email you when verified business award seats open (part of the US$9.99/month membership).
Monitored continuously since 9 July 2026 — 1,064 checks across 120 days, verified against the GDS.
Space was last returned on this route on 14 October 2026, but not at counts we could verify as bookable, so we do not publish it as availability.
We keep checking multiple times a day, and the record above updates with it. If space appears, an alert is the fastest way to hear about it.
Points prices for this route
Fewest points per person, from published award charts: one way, EVA Air Infinity MileageLands 97,500 (transferable from Citi ThankYou, Capital One Miles); round trip, ANA Mileage Club 136,000 (transferable from Amex Membership Rewards). Taxes and carrier surcharges extra; charts checked 11 Oct 2026. Air Canada Aeroplan and United MileagePlus price these flights dynamically, which can be lower.
| Programme | Points per person | Notes |
|---|---|---|
| ANA Mileage Club | 136,000 round trip | transfer from Amex |
| EVA Air Infinity MileageLands | 97,500 | transfer from Citi, Capital One |
| Virgin Australia Velocity | 102,000 | |
| Turkish Airlines Miles&Smiles | 130,000 | transfer from Capital One, Citi, Bilt |
| Singapore Airlines KrisFlyer | 131,000 | transfer from Amex, Chase, Citi, Capital One |
| Thai Airways Royal Orchid Plus | 132,000 | transfer from Citi |
Also books it, at dynamic prices: Air Canada Aeroplan, United MileagePlus.
One way per person unless marked round trip, from each programme's published award chart; taxes and carrier surcharges extra. These are the prices when award seats are available: check availability live.
About This Route
One of the longest routes in commercial aviation. United flies San Francisco to Singapore nonstop, and United is the only carrier that has produced verifiable space for us here. Singapore Airlines flies the route too, but withholds its own award inventory from partner distribution almost entirely, so a search that turns up nothing on SQ is not evidence the flight is full.
Aircraft
Boeing 787-9
💡 Insider Tip
Space on this route is genuinely scarce — of everything we have recorded here, only a small fraction verified as bookable. Set an alert rather than searching repeatedly; when it opens it does not stay open long.
Newest sighting: none in the last 7 days · Data from the GDS