San Francisco → Seoul flights

SFO–Seoul fares cluster tight: target the $307–$316 band

Key takeaways

• Median fare is $314 across 30 daily cached-fare snapshots — a reliable baseline for budgeting.
• The bottom quartile starts at $308, meaning genuine low fares are just $6–$7 below the median.
• The full observed range is $307–$335 — a spread of only 9%, which is unusually compressed for a transpacific route.
• P75 is $316, so three-quarters of sampled fares fell at or below that level — overpaying is hard on this route right now.
• Because the spread is so tight (<10%), obsessing over timing is less important than simply booking when you see anything at or below $314.

30-day price trend

See full numbers and stats on the SFO → ICN price history page.

The full picture

The San Francisco–Seoul fare environment is striking for how little it moves. Across 30 daily snapshots, the cheapest available fares ranged from $307 to $335 — a spread of just 9%. That's unusually narrow for a transpacific market where $50–$100 swings are common. The interquartile range ($308–$316) is even tighter: an $8 window. In practical terms, this means the route is either being held at a stable promotional floor by one or more carriers, or demand and capacity are well-matched enough to suppress volatility right now. Either way, a fare at or below $314 is solidly in the bottom half of recent pricing.

On a route this compressed, the conventional advice about booking windows — "book 6–8 weeks out" or "check on Tuesdays" — matters less than it normally would. The data simply doesn't show a meaningful penalty for booking slightly later or earlier within the window these snapshots represent. Your primary signal should be price level, not timing: if you see $307–$310, that's bottom-quartile territory worth acting on. If you're quoted $320 or more, it's modestly above the median but still within the observed range, so waiting for a dramatic drop may not pay off.

No dominant carrier pattern is visible in this dataset, so we can't point to a specific airline as the consistent price leader. One honest caveat: 30 snapshots reflect cached fares at a single point in the booking horizon and don't capture how prices evolve as departure dates approach. If you're pricing a trip many months out, or booking last-minute, the range could look different from what's shown here. Use $314 as your anchor and $316 as a reasonable ceiling — on this data, that's where most travelers are landing.

Ready to look at fares?

• When to book
  San Francisco → Seoul
  AI-authored booking-window guide
  Open →
• Price history
  San Francisco → Seoul
  30-day daily price snapshots
  Open →
• Where to stay
  Best hotels in Seoul
  🇰🇷 South Korea
  Open →
• When to book
  San Francisco → Tokyo
  Same origin, different destination
  Open →
• Read
  Guide to Shopping in Seoul Trendy Districts
  South Korea · 8 min
  Open →