Washington → Bangkok flights

DCA–Bangkok fares are tight — expect ~$431 regardless of timing

Key takeaways

• Median fare sits at $431, with nearly all observed prices between $427 and $455
• A tight 7% spread suggests limited upside from timing your purchase carefully
• The bottom quartile ($431 or less) is essentially the median — there's little room below typical pricing
• High end of the range tops out at just $455, a modest premium over the cheapest fares seen
• Only 10 days of snapshots were available, so this read is more directional than definitive

30-day price trend

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

The full picture

The data shows a narrow band for DCA–Bangkok fares: a median of $431, a low of $427, and a high of $455. That's roughly a 7% spread from top to bottom, which is tight by long-haul international standards. When spreads are this small, it usually means the route is priced fairly consistently across the booking window we observed, rather than swinging based on day-to-day demand or last-minute fare dumps.

With such a narrow range, there isn't strong evidence that booking earlier or later within this window meaningfully changes the outcome — the bottom quartile ($431) and median are effectively the same number, meaning most fares cluster right around $431 rather than spiking or dipping dramatically. If you're planning this trip, the data suggests you can book with some confidence that you won't drastically overpay or underpay relative to the norm, as long as you're seeing prices in the $427–$440 range.

We don't have enough visibility into carrier-level patterns or specific weekday effects in this dataset to make claims about which airline or day tends to be cheaper — the data simply doesn't break out that detail reliably here. The honest caveat: this read is based on only 10 daily snapshots, a thin sample for a long-haul route like DCA–Bangkok. That's enough to establish a reasonable price range, but not enough to confidently generalize about seasonal trends or longer-term booking-window behavior. Treat $431 as a solid reference point, not a guarantee.

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