Seattle → Hong Kong flights

SEA→HKG: Target $346–$563, but expect wide swings

Key takeaways

• Median fare is $563, but the bottom quartile sits at just $346 — meaning roughly one-in-four snapshots caught fares at or below that level.
• The low was $345 and the high $751 — a $406 gap that signals this route is genuinely volatile, not just slightly variable.
• Spread of 118% is exceptionally wide, so setting a fare alert and waiting for dips toward the p25 range is a sound strategy.
• 16 daily snapshots underpin these figures — a moderate sample; directionally reliable but not as robust as a full 30-day set.
• Budget $620 or less (the p75 threshold) to stay in the better half of observed fares; anything above that puts you in the pricier tier.

30-day price trend

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

The full picture

Seattle to Hong Kong is a long-haul transpacific route — roughly 10–11 hours nonstop — and the fare data reflects just how much prices can move on it. The $563 median gives you a reasonable anchor, but the 118% spread between the lowest and highest observed fares ($345 vs. $751) is a signal that this is not a route where the first price you see is likely to be the best one. The interquartile range — $346 to $619 — is where most of the actionable fares cluster, and that $270 gap within just the middle 50% of snapshots tells you that timing and flexibility genuinely matter here.

The presence of fares as low as $345 in the dataset (essentially at the p25 level of $346) suggests these cheaper prices are not pure outliers — they appear with enough regularity to be worth waiting for. Based on general transpacific booking patterns, fares on routes like this tend to soften when booked 6–10 weeks ahead of departure, though peak travel periods (summer, Lunar New Year, major Hong Kong holidays) compress that window significantly. If your dates are flexible, monitoring over a 2–3 week period before committing is a reasonable approach given how much variance exists in this data.

One honest caveat: this analysis draws on 16 daily snapshots rather than a full 30-day window, which means unusual events — a flash sale, a holiday pricing spike — could be disproportionately represented. Treat the $563 median as a credible baseline and the $346 p25 as an achievable target for flexible travelers, but not a guaranteed floor. Set a price alert at or below $450 and treat anything under $500 as a strong fare worth booking.

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