It’s typically best to fly out from San Francisco to Kos at noon. Doing so could potentially save you 42% on the flight price compared to flying in the morning, which is usually more expensive.
Yes, there are multiple flights from San Francisco to Kos for under $1,000. The cheapest flight booked recently is on Multiple Airlines for just $933, but on average you can expect to pay $948.
While on average a flight from San Francisco to Kos is generally $2,649, our data shows the cheapest flight currently is $738. When looking at the most popular route, (San Francisco - Kos), you can expect to pay $933 for that flight.