Today's drop ·
Cheap flights from San Francisco to Barcelona
$639 round trip right now, 23% under the $834 this route usually costs.
How cheap is this?
Telly prices every departure date six months out on this route, for trips of 2 to 14 nights, and measures each fare against what the route usually costs. The cheapest round trip right now is $639 on TAP Portugal, 1 stop, against a usual $834. 23% below the usual fare.
When to go
The cheapest dates fall in Nov, for trips of 9 to 13 nights. Nov in Barcelona runs around 70°. The dates come picked because a cheap fare only exists on certain days; the exact ones and the booking link are in the app.
Passport required
Barcelona is outside the US and Canada, so you need a passport. Every flight on Telly leaves the country; that is the whole filter.
Questions about this route
How much is a flight from San Francisco to Barcelona?+
Right now $639 round trip, on TAP Portugal. The route usually costs $834, so this fare is 23% under. Checked Nov 3, 2026.
When are the cheapest dates to fly to Barcelona?+
The cheapest dates Telly found are in Nov, for trips of 9 to 13 nights. It prices every departure date six months out on this route and keeps only the lowest. The exact dates are in the app.
Do I need a passport to fly from San Francisco to Barcelona?+
Yes. Barcelona is outside the US and Canada, and every flight on Telly leaves the country, so every one needs a passport.
