Boston → Singapore flights

BOS–SIN: median $430, but fares can nearly double — watch the spread

Key takeaways

• Median fare sits at $430, matching the observed low across the sample window
• High fares hit $796, meaning prices can swing by 85% depending on timing
• Bottom quartile (p25) is $430, the same as the floor — suggesting many snapshots cluster cheap
• Top quartile (p75) jumps to $796, so the expensive half of fares is notably pricier than the cheap half
• Only 9 snapshots back this data, so treat the pattern as a early signal, not a guarantee

30-day price trend

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

The full picture

The data shows a wide gap between cheap and expensive fares on this route: a median of $430 against a high of $796, an 85% spread. That's a large enough swing that timing clearly matters — but it also means the route doesn't price consistently from day to day, which makes any single number less reliable as a planning anchor.

What stands out is that both the median and the p25 figure sit at $430, the same as the observed low. That suggests cheap fares aren't rare outliers — they show up often enough to anchor the lower half of the distribution. The p75 figure of $796, by contrast, shows that when prices rise on this route, they rise substantially rather than creeping up gradually. Travelers who can stay flexible and watch fares over a few weeks have a real shot at catching one of the more common low fares rather than the occasional spike.

We don't have enough visibility into specific days of the week or a dominant carrier from this dataset to make claims about weekday-vs-weekend patterns or airline-specific pricing behavior — so we won't guess. What we can say with confidence is that the range itself (85% spread) is wide enough to reward patience and fare-checking over a 2-4 week window rather than booking the first price you see.

Honest caveat: this read is based on just 9 snapshots, a thin sample for a long-haul route like Boston to Singapore. That's enough to describe the shape of the range, but not enough to treat $430 as a guaranteed target or to rule out further outliers in either direction. Treat this as a directional guide rather than a precise forecast.

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