Best Time to Book

San Francisco → Singapore flights

Median SFO–Singapore fare is $343 across 30 days of tracking; watch for dips toward $276 rather than timing a specific date.

SFO–Singapore fares hover near $343 — bottom quartile dips to $276

Key takeaways

Median fare sits at $343, with a 30-day range spanning $268 to $386.
Bottom quartile (25% of fares) comes in at or below $276 — a realistic target for a good deal.
Top quartile fares climb to $359+, so waiting for a discount matters more than picking a magic day.
44% spread between low and high signals real volatility — this route rewards flexible shopping.
Sample is a solid 30-day window, giving reasonable confidence in these bands.

30-day price trend

SFO → SIN · cheapest cached fare per day · last 30 days · ↓ 22%

$268 low$375 high

See full numbers and stats on the SFO → SIN price history page.

The full picture

Fares between San Francisco and Singapore have ranged from $268 to $386 over the past 30 days, with a median of $343. That's a 44% spread from low to high — wide enough that patience and comparison shopping can meaningfully pay off on this route. If you're seeing something in the $270s to $280s, that's bottom-quartile territory and worth booking; anything above $360 is on the expensive end of what we've observed.

We don't have enough visibility into how prices move across the full booking horizon (this data reflects a 30-day snapshot window, not fares tracked from months out to departure), so we can't responsibly say when in the booking calendar this route typically softens. What we can say is that the spread itself — nearly $120 between cheapest and priciest cached fares — suggests fares fluctuate enough that checking periodically over several weeks is more useful than trying to time a single purchase moment.

The data doesn't surface a dominant carrier or clear day-of-week pattern for this route, so we won't speculate on airline-specific pricing behavior or claim certain departure days are cheaper — that's not something this dataset supports. The honest takeaway: treat $343 as your baseline, treat anything near $276 as a good deal worth acting on, and know that this snapshot reflects recent cached fares rather than a full look at how prices evolve as departure approaches.

Ready to look at fares?

Search SFO → SIN on Aviasales →See the price history →

Related travel pages

Why we regenerated this article: Bottom quartile ↓ 20% ($343 → $276). We only rewrite when the underlying price index actually moves — stable weeks keep the previous take.

AI-authored from this route's 30-day price index. Article last regenerated Sep 19, 2026. Fares shift continuously — confirm at booking.