Flight Time from San Francisco (SFO) to Seattle (SEA)

Airlines planning the SFO → SEA leg start from the same arithmetic this page uses: 1,093 km ÷ 850 km/h, then the 40-minute airport allowance. The slider's steps are anchored on typical hub dwell times, which is why the totals sit at 5.5 h and 11.4 h rather than pure multiples.

Under 1,500 km, airport overhead is proportionally huge: a direct train or coach between San Francisco and Seattle may match the flight's door-to-door time. No clock shift complicates the arrival math — San Francisco and Seattle run the same clock year round.

Vancouver (YVR) is the nearest alternative endpoint, 195 km from Seattle — close enough that some fares from SFO price it as the same destination. From SFO, reaching YVR instead takes about 0.9 h — less airborne time than the 1.95 h non-stop, and the surface leg into Seattle still has to be won back.

Companion flight-time pages exist for 1 of these alternatives (YVR first among them) — see Related calculators. Remember the destination is the point: any airport below that adds more than a couple of hours of surface time to reach Seattle needs a substantial fare gap to justify.

Put a departure hour on the math: wheels-up at 10:00 from SFO puts you on the ground at SEA around 11:57 local time, once the 0-hour gain is applied. Budget the ground side too: a standard day runs $253 in Seattle versus $311 in San Francisco (hotel, three meals, two transit rides), so the arrival city sets the trip's marginal cost.

On those numbers Seattle is the cheaper place to linger — the gap is $58 per day, which over a week funds a second flight. Zero clock change means the 11:57 arrival clock is pure flying time — what you see is what you flew.