San Francisco → London flights

SFO–London fares hover near $295 — little room to game the system

Key takeaways

• $295 median fare across all 30 sampled days in the window
• Middle half of fares fell between $269 and $300 — a narrow band
• Low end touched $229, but that was an outlier, not the norm
• High end capped at $302, just above the median itself
• 32% spread between low and high, but most fares clustered tightly near the top of that range

30-day price trend

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

The full picture

Over the last 30 days, every day in the window had a cached fare, giving a full picture of pricing on this route. The median sat at $295, with the middle half of fares ranging from $269 to $300 — a tight band that suggests most travelers are paying close to that median regardless of when they check. The $229 low is notable but sits well below the p25 mark of $269, making it an outlier rather than a realistic target.

Because the spread between p25 and p75 is narrow, there's no strong evidence of a specific booking window that reliably unlocks savings. The gap between low ($229) and high ($302) is 32%, which sounds significant, but the bulk of fares cluster near the high end of that range — between $269 and $302 — rather than spreading evenly across it. That pattern points to occasional, hard-to-predict dips rather than a dependable pattern of softening prices at any particular point before departure.

The data doesn't surface a visible dominant carrier or day-of-week pattern for this route, so we can't make claims about specific airlines or weekday departures being cheaper. What we can say is that if you see a fare at or below $269, you're getting a better-than-typical deal on this route right now. Fares right around $295 should be treated as the going rate, not a price worth waiting out.

Honest caveat: this is a 30-day snapshot, not a seasonal view. Prices on transatlantic routes like SFO–LHR often shift with booking horizon and season in ways a 30-day window can't capture, so treat this as a current-conditions read rather than a year-round forecast.

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