SFO - CAG

$364 Find Cheap Flights from San Francisco to Cagliari - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Cagliari departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$801
SWISS
Sun 8/9Mon 8/24
SFO - CAG • 1 stop
Cheapest one-way
$364
Multiple Airlines
Mon 9/21
SFO - CAG • 3 stops
Top airlines
Cheapest • from $801 (round-trip)
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Francisco and Cagliari. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $852 (round-trip)
Shortest trip • 16h 55m (one-way)
Insights
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Flight Deals

Cheap Flights from San Francisco to Cagliari (SFO-CAG)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Cagliari that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Cagliari

Sun, Aug 9 - Mon, Aug 24
SWISS Logo
7:35 pm - 8:20 pm
SFO
-
CAG
15h 45m
1 stop
SWISS Logo
9:05 pm - 4:15 pm
CAG
-
SFO
28h 10m
1 stop
$801SWISS
Sun, Aug 9 - Mon, Aug 24
Delta Logo
11:50 pm - 11:45 am
SFO
-
CAG
26h 55m
2 stops
Delta Logo
5:05 pm - 11:45 am
CAG
-
SFO
27h 40m
1 stop
$817Delta
Mon, Aug 17 - Mon, Aug 24
Delta Logo
7:00 am - 11:45 am
SFO
-
CAG
19h 45m
2 stops
Delta Logo
5:05 pm - 11:45 am
CAG
-
SFO
27h 40m
1 stop
$819Delta
Sun, Aug 9 - Mon, Aug 24
Delta Logo
2:36 pm - 6:00 pm
SFO
-
CAG
18h 24m
2 stops
Delta Logo
5:05 pm - 8:03 pm
CAG
-
SFO
35h 58m
2 stops
$822Delta
Sun, Sep 13 - Mon, Sep 21
Multiple Airlines Logo
4:45 pm - 12:55 am
SFO
-
CAG
23h 10m
2 stops
Multiple Airlines Logo
12:35 pm - 2:40 pm
CAG
-
SFO
35h 05m
2 stops
$823Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Delta Logo
7:00 am - 11:45 am
SFO
-
CAG
19h 45m
2 stops
Delta Logo
5:05 pm - 7:39 pm
CAG
-
SFO
35h 34m
2 stops
$829Delta
Mon, Aug 17 - Mon, Aug 24
SWISS Logo
7:35 pm - 3:15 pm
SFO
-
CAG
34h 40m
1 stop
SWISS Logo
9:05 pm - 4:15 pm
CAG
-
SFO
28h 10m
1 stop
$842SWISS
Mon, Aug 17 - Sun, Aug 23
Multiple Airlines Logo
4:30 pm - 10:55 pm
SFO
-
CAG
21h 25m
2 stops
Multiple Airlines Logo
10:40 pm - 2:30 pm
CAG
-
SFO
24h 50m
2 stops
$864Multiple Airlines
Fri, Aug 7 - Wed, Aug 19
Multiple Airlines Logo
8:10 pm - 6:00 pm
SFO
-
CAG
36h 50m
1 stop
Multiple Airlines Logo
5:05 pm - 11:45 am
CAG
-
SFO
27h 40m
1 stop
$866Multiple Airlines
Mon, Aug 17 - Sun, Aug 23
Delta Logo
5:36 am - 11:45 am
SFO
-
CAG
21h 09m
2 stops
Delta Logo
5:05 pm - 11:45 am
CAG
-
SFO
27h 40m
1 stop
$869Delta
Booking Insights

KAYAK's insights & trends for San Francisco to Cagliari flights

Get data-powered insights and trends into flights from San Francisco to Cagliari to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from San Francisco to Cagliari?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from San Francisco to Cagliari were found on SWISS ($801) and Delta ($817).

Good to know

Cheapest flight$364
Flight from San Francisco to Cagliari

When to book flights from San Francisco to Cagliari

Are your dates flexible? Find out the best times to travel from San Francisco to Cagliari based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Cagliari

  • How do I connect to San Francisco International Airport to catch a flight to Cagliari?

    When traveling from Downtown San Francisco to SFO to catch your flight to Cagliari, buses are the most dependable and cost-effective mode of transportation. Bus lines 148, 192, and 398 run directly from Downtown San Francisco to SFO.

  • Which airline should I book when flying from San Francisco to Cagliari with kids?

    If you're flying from San Francisco to Cagliari with your kids, look into United Airlines or Alaska Airlines. American boasts the greatest extra legroom and large seats in all of its cabins among the carriers on this route. Aside from that, both airlines give priority boarding to parents traveling with their children.

  • What other cities can I connect to from Cagliari Elmas Airport (CAG)?

    When you book a flight from San Francisco to Cagliari, you can connect to other cities served by CAG. In addition to being the primary gateway to Cagliari, Cagliari Elmas Airport serves Monserrato, Selargius, and Quartucciu. Car rentals offer a dependable and flexible mode of transportation from CAG to any of these places.

  • Which airlines offer more eco-friendly flights from San Francisco to Cagliari?

    Delta and TAP Air Portugal are the most environmentally friendly airlines traveling from San Francisco to Cagliari. These airlines are working to equip all of their aircraft with fuel-efficient engines, which has significantly reduced their overall carbon footprint.

  • What is the cheapest flight from San Francisco to Cagliari?

    In the last 5 days, the lowest price for a flight from San Francisco to Cagliari was $364 for a one-way ticket and $801 for a round-trip.

  • Do I need a passport to fly between San Francisco and Cagliari?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Francisco and on arrival in Cagliari.

  • Which aircraft models fly most regularly from San Francisco to Cagliari?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Cagliari?

    Star Alliance is the only airline alliance operating flights between San Francisco and Cagliari.

  • How does KAYAK find such low prices on flights from San Francisco to Cagliari?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Cagliari.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Cagliari?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cagliari from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Cagliari?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cagliari with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and CAG can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Cagliari?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cagliari from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Francisco to Cagliari

  • The main departure airport for flights from San Francisco to Cagliari is San Francisco International Airport (SFO). However, a few flights from San Francisco depart from Oakland International Airport (OAK) and San Jose Mineta International Airport (SJC). The advantage of departing from SJC or OAK, which have less popular routes, is that you have a better chance of finding lower ticket prices.
  • Since SFO is the fifth largest United Airline’s hub, booking this airline for your flight to Cagliari provides several advantages. Among these advantages is the ability to book a flight at any time of day that is convenient for your schedule. This is due to United Airlines' many daily flights from SFO to Cagliari Elmas Airport (CAG), which serves as the sole destination airport for flights from San Francisco to Cagliari.
  • When flying with your pet(s) from San Francisco to Cagliari, book Alaska Airlines. Although all airlines on this route offer pet-friendly policies, Alaska Airlines stands out due to their lowest pet fees. Furthermore, Alaska Airlines allows pets to travel in-cabin, as long as the total weight of the pet and carrier does not exceed 20 lbs. The animals must also be at least eight weeks old.
  • If you plan flights that stop at one or two points along the way, you will most likely pay less than if you book direct tickets from San Francisco to Cagliari. Air France, TAP Air Portugal, and SWISS are among the airlines that provide layover flights. The three most typical layover airports for flights from San Francisco to Cagliari are Humberto Delgado Airport (LIS), Amsterdam Airport Schiphol (AMS), and Frankfurt Airport (FRA).
  • After landing at Cagliari Elmas Airport (CAG), use the cost-effective bus line 160 to the city center or other places inside the city. The bus ride from the airport to Cagliari takes about 20 minutes.

Reviews of the top airline flying from San Francisco to Cagliari

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Cagliari. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Cagliari? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
SWISSOverall score based on 1986 reviews
7.1Food
7.7Boarding
8.3Crew
6.8Entertainment
7.4Comfort
Airline reviews

plenty of legspace, snacks, no pull face from flight attendants when asking for a wine. Also fast transfer ability at ZRH.

10.0 ExcellentIstvan, Apr 2026
SFO - ZRH
Read more SWISS reviews

plenty of legspace, snacks, no pull face from flight attendants when asking for a wine. Also fast transfer ability at ZRH.

We’ve never been more uncomfortable on a flight than we have on this particular one. The seats in front of us reclined so far back that when the person reclined their seat of broccoli, it almost hit me in the face and left me with literally no room to move that said I had to recline my seed in which made the person behind me upset. It seemed like the seats also would recline without even pressing the button in the armrest and would unrecline as well for that same reason, and it also seemed that some seats reclined more than others. The bottom cushions of the seat were so thin that even after one hour of an 11 hour flight, our tailbones were so sore. It seemed like an overall old airplane. It also didn’t have individual air vents and it was extremely hot the entire flight. Several passengers were commenting on how hot it was. The breakfast was some kind of flavorless triangle, puffy egg, laying in a watery bed of steamed peppers and onions and spinach. It was not appetizing at all. The flight crew was extremely nice so that was a nice thing this flight attendant. They let us try different types of Swiss sodas, which was really nice and the dinner was actually delicious but still overall given the other considerations. It was pretty much a miserable flight without basic seat comfort.

When I needed to get my bag off of the plane so that I could take a train because the connection was 4 hours later, they took 2 hours to take my bag off making me take the train and miss my flight simultaneously. The seat size on the plane is too small for an average aged woman let alone a middle-aged man. It's unacceptable and I will not fly Boeing again.

The biggest let down was with booking experience through Kayak. I booked a flight with checked bags on Kayak. Right away I got a message from travel agency that the flight is not confirmed and to call them. I called them and they said the flight I have booked is no longer available with the price I have booked it for and I can book it with about $100 more. I already had other options I could book with cheaper price so I asked them to cancel my booking. Then they said I can have the ticket with the same price but a date change which was not working for me as I had to be there for a seminar. So again I said no then they said they will cover the charges and confirm my flight. When comes time for check-in I see I have no checked bag option which means the travel agency deceived me saying I can have my booking as I had booked it. And at that point I ended up paying $155 for my checked bag going back and forth. I am extremely angry and unhappy with this experience

It was great. My seat was comfortable. The bathrooms were clean . The service was superb . I travel a lot and I have been in 64 counties. I wish I could fly first class, even though I could , but I prefer to budget my yearly travelling expense on actual visiting , not on flight. Anyway, my point is that your economy was far much better than other airlines as good as Air France. The flight attendants and all crew were polite and very helpful and respectful. Thank you for making my long trip tolerable.

It is a good airlines, very professional very good food. I wish they offered free luggage is the only thing.

Everything was great except food . It as okay not good not bad

I have no complaints. The crew was attentive, pleasant and heloful

Stuff was very helpful at checkin. Flight attendants were nice. Food wasn’t very good, I expected a little more. Economy Seats are ok. Second flight was very full and they forced us to checkin our carry on.

We had issues with upgrading our seats. The flight itself was fine.

Everything you need to know for your flight from San Francisco to Cagliari

Information on your arrival and departure airports