Seattle → Taipei flights

Target $433–$439 on Seattle–Taipei; avoid the $544+ tier

Key takeaways

• $439 is the median fare — a reasonable anchor for budgeting this transpacific route.
• The bottom quartile sits at $433 or below, meaning roughly one-in-four snapshots captured fares near that floor.
• The floor was $389, but treat that as a ceiling-beating exception, not a planning target.
• A 49% spread between low ($389) and high ($578) signals meaningful price volatility — timing your search matters on this route.
• Fares above $544 (p75) represent the pricier quarter of snapshots; if you're seeing that range, it's worth waiting or adjusting travel dates.

30-day price trend

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

The full picture

Seattle–Taipei is a long-haul transpacific route where a $439 median fare reflects competitive but not rock-bottom pricing. The interquartile range — $433 to $544 — is where most shoppers will realistically land, and that $111 gap between the 25th and 75th percentile means the route has enough variability to reward patience. The 49% spread from absolute low to high ($389 to $578) is wide by any standard, confirming this isn't a flat-fare corridor where checking once is enough.

On transpacific routes of this distance, fares tend to soften when you're searching 6–10 weeks out from departure rather than within three weeks or beyond four months. Extremely early searches often catch only high-yield inventory before carriers load promotional fares, while last-minute bookings on a 9–10 hour route rarely yield discounts. The $389 floor in this dataset likely reflects a brief promotional window or a seat-sale load — useful to know it's possible, but not a figure to build a trip around. If your search is returning fares in the $433–$440 range, that's a credible buy signal based on where this route has historically priced.

No dominant carrier was identifiable from this dataset, so route-specific airline advice isn't warranted here. What the data does support: monitoring this route over two to three weeks before committing, since a 49% spread means today's $520 quote can genuinely drop to the low $400s with a shift in departure date or a carrier promotion. One honest caveat: 30 daily snapshots capture one rolling window of fares, not a full annual cycle — seasonal demand spikes around Lunar New Year, summer, and major Taiwan holidays can push prices well above the $578 high observed here.

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