Cheap Flights from San Francisco to Key West
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The latest fare from San Francisco to Key West: $350 round trip, Dec 12 – Dec 19, seen Nov 9. Prices by month are below.
Across 5 months of observations from San Francisco to Key West, the lowest round-trip economy fare we recorded was $300, in August. The typical economy fare was $351. August was the cheapest month we saw and November the dearest.
The most recent economy price we saw on this route was $350 on Delta, seen Nov 9.
See every deal from San Francisco, to Key West, or the return direction Key West to San Francisco.
Latest economy price we saw: San Francisco to Key West
The most recent economy round-trip fare we saw on this route.
| From | Price | Per mile | Travel dates | Airline | Seen |
|---|---|---|---|---|---|
| San Francisco (SFO) to Key West (EYW) | $350 | 6.9¢ | Dec 12 – Dec 19 | Delta | Nov 9 |
Economy price history: San Francisco to Key West
The lowest fares we saw each month.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Nov 2026 | $350 | $350 | 5 |
| Oct 2026 | $320 | $320 | 1 |
| Sep 2026 | $300 | $324 | 2 |
| Aug 2026 | $300 | $419 | 144 |
| Jul 2026 | $339 | $339 | 1 |
Frequently asked questions
How many flight deals from San Francisco to Key West are on Sparkflights right now?
There are 0 deals from San Francisco to Key West on the board right now.
What is the lowest price ever seen from San Francisco to Key West?
The lowest economy fare we've recorded from San Francisco to Key West is $300, based on 153 price observations over 5 months.
How much does a flight from San Francisco to Key West cost?
The typical round-trip economy fare we observed from San Francisco to Key West is $351, against a recorded low of $300. These are observations, not quotes.
When is the cheapest month to fly San Francisco to Key West?
For economy fares from San Francisco to Key West, August was the cheapest month we observed and November the dearest, over 5 months of data.
What is the current price from San Francisco to Key West?
The most recent economy fare we saw from San Francisco to Key West is $350, on Nov 9.