San Francisco to Lisbon flights
An economy round trip usually costs about $910. Half that, around $455 or less, is rare enough that we post it as a Fare Signal.
12 round-trip fares found in flight searches since Oct 1 · Updated Oct 15, 2026
- Mistake fare under $273 · 70%+ below
- Fare Signal $273–$455 · 50–70% below
- Ordinary, not posted above $455
- $910typical round trip
- $859or less is a good price
- $455or less is half price
- 17%of the cheapest fares nonstop
Live Signal on this route
No Signal from San Francisco to Lisbon right now
We check fares from San Francisco every 30 minutes, in economy and business. If this route drops to around $455 or less, it shows up here, on the Live Signals board and in your inbox.
Good to know
17% of the cheapest fares we tracked were nonstop. Nonstop on TAP Air Portugal.
Book first, plan second. US rules let you cancel most tickets bought directly from an airline within 24 hours for a full refund, if you book at least 7 days before departure.
Questions
- How much is a flight from San Francisco to Lisbon?
- An economy round trip has typically cost about $910, the middle of 12 round-trip fares found in flight searches since Oct 1. Most fell between $790 and $1,274.
- What's a good price for San Francisco to Lisbon?
- $859 or less beats three out of four fares we've tracked on this route. Half the typical price, around $455 or less, is rare enough that we post it as a Fare Signal.
- Are there nonstop flights from San Francisco to Lisbon?
- Yes. 17% of the cheapest fares we tracked on this route were nonstop. We've seen nonstop tickets on TAP Air Portugal.
How these numbers work. They come from round-trip economy fares on this route that turned up in flight searches (Travelpayouts data) for departures over the coming year. We keep the past 8 weeks and refresh weekly. Typical is the median: half the fares cost less, half cost more. It's never an inflated "was" price. These are cached prices, so check the live fare before you book; every Fare Signal we post is checked at its live price first.
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