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Washington → Singapore flights

Washington–Singapore fares show a $696 median across a limited 9-day sample, with prices from $573 to $771; book when you see bottom-quartile pricing.

Fares cluster near $696 — but sample size is thin, so stay flexible

Key takeaways

$696 median fare across the observed snapshots
Bottom quartile ($573–$696) represents the better half of observed pricing
High end reaches $771, a 35% spread from the low of $573
Only 9 daily snapshots collected — not enough to confirm a reliable pattern
35% spread suggests meaningful price variation worth watching before booking

30-day price trend

DCA → SIN · cheapest cached fare per day · last 10 days · ↓ 18%

$573 low$771 high

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

The full picture

The data shows a $696 median fare for Washington to Singapore, with a range spanning $573 to $771 — a 35% spread that indicates real price variation rather than a flat, settled market. If you see a quote at or below the $573–$696 range (the bottom quartile), that's a reasonably strong fare relative to what's been observed. Anything pushing toward $771 sits at the high end of this window.

With only 9 daily snapshots, this dataset is too thin to draw confident conclusions about when in the booking horizon prices soften, or whether there's a reliable rhythm to the fluctuations. A 35% spread over such a short sample could reflect genuine booking-window dynamics, or it could just as easily reflect normal day-to-day noise in fare caching. We can't responsibly point you to a specific week or say prices reliably drop at a certain point before departure based on this data alone.

No dominant carrier pattern is visible in what we were given, so we can't speak to airline-specific pricing behavior on this route. The practical takeaway: treat $696 as your benchmark, treat anything near $573 as a good outcome, and be wary of paying near $771 unless your dates are fixed. Our honest caveat is that with a sample this small, we'd recommend checking fares over a longer window yourself before locking in a booking strategy — this snapshot is a useful reference point, not a forecast.

Ready to look at fares?

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

Related travel pages

Why we regenerated this article: Bottom quartile ↓ 18% ($696 → $573). 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.