Seattle → Bangkok flights

Most fares cluster near $446 — a few spike past $900

Key takeaways

• Median fare is $446, with the bottom quartile sitting just below it at $432
• Spread of 116% between low and high ($425 to $919) signals two distinct pricing tiers, not steady drift
• The top quartile jumps to $919 — matching the high, suggesting a cluster of premium or last-minute fares rather than gradual increases
• Only 12 snapshots sampled, so this read is directional, not a definitive seasonal pattern
• Fares as low as $425 confirm sub-$450 tickets are available, not just theoretical

30-day price trend

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

The full picture

The data shows a route with two fairly distinct price bands. Three-quarters of the fares we tracked sit between $425 and $432 — a tight, low-cost cluster — while the top 25% rockets up to $919, pulling the median to $446 and the overall spread to a wide 116%. That kind of gap usually means limited award-style or deep-discount inventory gets snapped up, after which remaining seats price in a much higher tier, rather than fares climbing steadily day by day.

With only 12 snapshots, we can't map a precise booking curve or say prices consistently soften at a certain number of weeks out. What we can say: the bulk of observations landed near the low end, so a fare close to $446 or better looks achievable more often than not on this route. If you check pricing and see something in the $425-$450 range, that aligns with where most of our samples clustered — waiting for a dramatic further drop isn't well-supported by this data.

We don't have enough visibility into carrier mix or specific days of the week in this dataset to make claims about which airline or weekday performs better — the payload didn't surface a dominant carrier signal. The honest caveat here is twofold: 12 samples is a thin window for a long-haul international route like SEA-BKK, and the extreme spread (fares more than doubling) means a single outlier or seasonal event could be skewing the high end. Treat the $446 median as a reasonable target, but verify current pricing before assuming the pattern holds.

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