The cheapest times to fly from SFO to ZOS are

  • July 23rd to December 2nd (except the weeks of September 3rd, September 17th, and November 19th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SFO to ZOS is early October. Prices can be as high as $2424 for Thursday flights during late December, or as low as $881 for Sunday flights around early October.


When to Fly to Osorno

Flying from San Francisco, CA (SFO) to Osorno (ZOS) will usually cost between $926 to $1799 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early October with an average ticket price of $916. Due to high demand the most expensive time to fly is late December, with an average price of $2023. Planning your trip to low-cost times can easily save you $1107 on economy flights and even more on first-class flights. Generally, any price below $1193 can be considered a good price for a round-trip SFO to ZOS flight.

See below for a graph of average weekly prices for the SFO to ZOS route. All prices are for round-trip tickets in USD.

SFO to ZOS Flight Prices

Compared to other flights, the SFO to ZOS flight is slightly more expensive than the average and costs about as much as the average flight leaving from San Francisco. The average price per mile (for a direct flight) is $0.12, which is far below average.


Flight Prices by Day of the Week

Sunday is usually the cheapest day to fly to ZOS, and Wednesday the cheapest day to fly back into SFO. Thursdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $309 (20%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Sunday and returning a week later will cost an average of $1143. Return trip prices are from the ZOS to SFO flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SFO to ZOS can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 12 hour 13 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from SFO to ZOS while comparing.

Destination alternative #1: Las Marias Airport (ZAL) in Valdivia

  • 57 miles (92 km) away from ZOS
  • Usually 6.33% less expensive than ZOS
  • 2-layover flights available

See SFO to ZAL flights

Destination alternative #2: Maquehue Airport (ZCO) in Temuco

  • 129 miles (208 km) away from ZOS
  • Usually 6.20% less expensive than ZOS
  • 2-layover flights available

See SFO to ZCO flights

Destination alternative #3: El Tepual International Airport (PMC) in Puerto Montt

  • 57 miles (92 km) away from ZOS
  • Usually 0.96% less expensive than ZOS
  • 2-layover flights available

See SFO to PMC flights


Flight Hacking SFO to ZOS

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SFO to ZOS — but Champion Traveler does!

Hack #1: Santiago (SFO > SCL > ZOS)

  • Price for both tickets: $915
  • Average savings: $278 (23.3%)

See SFO to SCL flights


Flight Questions Answered

Still have questions about flying from SFO to ZOS? We’ve got answers.

Which airlines fly this route?

You can find 7 major airlines flying this route most often: Alaska, American, Delta, InterJet, LATAM, Singapore Airlines, United, and potentially more during busy seasons.

How far away is it from Canal Bajo Carlos Hott Siebert Airport to San Francisco International Airport?

The distance between the two airports is roughly 6238 miles or 10039 kilometers.

How long does it take to fly from SFO to ZOS?

The real-world flight time for a nonstop SFO to ZOS flight is about 12 hour 13 minutes.

How many flights go between San Francisco, CA and Osorno?

It depends on the day of the week and the date, but a typical day might have around 29 available flights from SFO to ZOS.


Airport Location Info


Departing Airport

Origination code SFO
Origination airport name San Francisco International Airport
City San Francisco, CA
Country the United States
Latitude 37.6
Longitude -122.4

Return Airport

Destination code ZOS
Destination airport name Canal Bajo Carlos Hott Siebert Airport
City Osorno
Country Chile
Latitude -40.6
Longitude -73.1


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.