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San Francisco → Ho Chi Minh City flights

SFO–SGN fares show a $240 median over 12 snapshots; most quotes bunch near that floor, so book when you see it rather than waiting.

Median sits at $240 — most fares cluster there, a few spike to $358

Key takeaways

$240 median fare across the 12-day sample, matching the observed low
Bottom quartile (p25) is also $240, meaning most snapshots were priced at or near the floor
Top quartile (p75) just $244 — the bulk of fares are tightly packed just above the median
High of $358 shows occasional spikes, driving a 49% spread despite the tight middle 50%
Sample size of 12 days is thin — treat patterns as directional, not definitive

30-day price trend

SFO → SGN · cheapest cached fare per day · last 13 days · ↑ 48%

$240 low$358 high

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

The full picture

The data shows a route where typical pricing is remarkably consistent: both the median and 25th percentile sit at $240, and the 75th percentile is only $4 higher at $244. That means for most of the 12-day window, fares were clustered right at the floor. The 49% spread is driven almost entirely by a small number of higher outliers reaching $358, not by a gradual upward drift — so the headline spread number overstates the volatility most travelers will actually experience.

With only 12 snapshots, we can't responsibly map out a precise booking curve or claim prices soften at a specific point in the horizon. What we can say is that if you see a fare near $240, you're seeing the going rate most of the time, not a rare dip — so there's little reason to hold out hoping for something lower. The $358 fares look like periodic spikes (possibly tied to specific dates, demand surges, or fewer seats in the cheapest booking class) rather than the norm, so they're the ones worth booking around rather than waiting out.

We don't have enough visibility into carrier mix or day-of-week patterns from this dataset to make claims about a dominant airline or optimal departure day — the data doesn't break out that detail reliably here. The honest caveat: 12 days is a small sample for a long-haul international route like SFO–SGN, and real-world pricing can shift with seasonality, fuel surcharges, or schedule changes that this snapshot window wouldn't capture. Treat the $240 figure as a solid anchor price, but keep checking periodically rather than assuming it's guaranteed.

Ready to look at fares?

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

Related travel pages

Why we regenerated this article: Price spread widened by 47 points. 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 Oct 10, 2026. Fares shift continuously — confirm at booking.