San Francisco → Bangkok flights

SFO–BKK median is $355 — book before prices climb toward $407

Key takeaways

• Median fare is $355 across 30 daily snapshots — a reliable anchor for budgeting this long-haul route.
• Bottom quartile sits at $346, meaning roughly a quarter of observed fares hit that floor — worth targeting if your dates are flexible.
• Top quartile reaches $374, and the ceiling hit $407 — so waiting too long risks a ~15% premium over the median.
• Spread of 18% between low and high is moderate, indicating fares do move meaningfully but aren't wildly volatile on this route.
• No dominant carrier signal was present in this dataset — comparison-shopping across airlines remains important.

30-day price trend

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

The full picture

San Francisco to Bangkok is a long-haul transpacific route where fares can swing sharply based on season and availability, yet this 30-day snapshot tells a relatively contained story. The $61 gap between the observed low ($346) and high ($407) represents an 18% spread — moderate by long-haul standards. Most days, the cheapest available fare sat in the $346–$374 band (the interquartile range), which means a traveler checking fares on any given day had a reasonable shot at landing within that window. The median of $355 is a credible planning target: not a cherry-picked outlier, but the midpoint of a month's worth of real cached fares.

On booking timing, the data doesn't pinpoint a magic week, but the tight clustering around p25 ($346) suggests that fares occasionally dip to that level before recovering. For a route of this distance — typically 17–20 hours with a connection — historical industry patterns suggest the 6-to-10-week-out window often balances seat availability against early-booker pricing, though that general guidance should be tested against live fare alerts for your specific travel dates. Setting a price alert anchored near $355 and pulling the trigger when fares touch $346–$350 is a data-grounded approach, rather than waiting speculatively for a lower floor that these 30 snapshots don't support.

No dominant carrier emerged clearly from this dataset, so running simultaneous searches across the major carriers operating this corridor — which typically involve one or two stops — is worthwhile. Codeshare and partner itineraries can sometimes undercut the headline prices on metasearch tools. One honest caveat: 30 daily snapshots reflect a single rolling window and may not capture seasonal peaks (e.g., Thai New Year in April or peak Western holiday travel in December), during which fares on this route have historically moved well above these figures. Treat $355 as a current baseline, not a year-round guarantee.

Ready to look at fares?

• When to book
  San Francisco → Bangkok
  AI-authored booking-window guide
  Open →
• Price history
  San Francisco → Bangkok
  30-day daily price snapshots
  Open →
• Where to stay
  Best hotels in Bangkok
  🇹🇭 Thailand
  Open →
• When to book
  San Francisco → Tokyo
  Same origin, different destination
  Open →
• Read
  10 Must-Try Bangkok Street Foods and Where to Find Them
  Thailand · 6 min
  Open →