The cheapest times to fly from SFO to CAG are

  • January 8th to March 18th
  • August 6th to December 9th (except the weeks of August 27th, September 3rd, 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 CAG is early December. Prices can be as high as $4130 for Tuesday flights during mid December, or as low as $666 for Wednesday flights around early December.


When to Fly to Cagliari

Flying from San Francisco, CA (SFO) to Cagliari (CAG) will usually cost between $808 to $1848 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early December with an average ticket price of $750. Due to high demand the most expensive time to fly is mid December, with an average price of $1907. Planning your trip to low-cost times can easily save you $1157 on economy flights and even more on first-class flights. Generally, any price below $1133 can be considered a good price for a round-trip SFO to CAG flight.

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

SFO to CAG Flight Prices

Compared to other flights, the SFO to CAG 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 $0.11, which is far below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to depart and return on this flight. Tuesdays 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 $201 (15%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $1034. Return trip prices are from the CAG 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 CAG can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 12 hour 19 minutes may not be realistic.


Flight Hacking SFO to CAG

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 CAG — but Champion Traveler does!

Hack #1: Barcelona (SFO > BCN > CAG)

  • Price for both tickets: $675
  • Average savings: $458 (40.42%)

See SFO to BCN flights

Hack #2: Paris (SFO > CDG > CAG)

  • Price for both tickets: $679
  • Average savings: $454 (40.07%)

See SFO to CDG flights

Hack #3: Milan (SFO > MXP > CAG)

  • Price for both tickets: $718
  • Average savings: $416 (36.67%)

See SFO to MXP flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 15 major airlines flying this route most often: Air France, Air Italy, Alitalia, Austrian, British Airways, Brussels Airlines, Delta, Eurowings, Finnair, Iberia, KLM, Lufthansa, SWISS, Tap Air Portugal, United, and potentially more during busy seasons.

How far away is it from Elmas Airport to San Francisco International Airport?

The distance between the two airports is roughly 6295 miles or 10131 kilometers.

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

The real-world flight time for a nonstop SFO to CAG flight is about 12 hour 19 minutes.

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

It depends on the day of the week and the date, but a typical day might have around 16 available flights from SFO to CAG.


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 CAG
Destination airport name Elmas Airport
City Cagliari
Country Italy
Latitude 39.3
Longitude 9.1


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.