SFO - CAG

$390 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

KAYAK searches hundreds of travel sites at once for deals on flights to Cagliari

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Cagliari, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Cagliari, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$829
Multiple Airlines
Mon 9/21Mon 9/28
SFO - CAG • 2 stops
Cheapest one-way
$390
Multiple Airlines
Mon 9/21
SFO - CAG • 3 stops
Top airlines
Cheapest • from $1,008 (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
Insights
Insights
Insights
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We hope you love your trip to Cagliari!
Flight Deals
Booking Insights
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

Mon, Sep 21 - Mon, Sep 28
Multiple Airlines Logo
4:45 pm - 10:25 pm
SFO
-
CAG
20h 40m
2 stops
Multiple Airlines Logo
2:20 pm - 2:40 pm
CAG
-
SFO
33h 20m
2 stops
$829Multiple Airlines
Sat, Aug 8 - Wed, Aug 19
Multiple Airlines Logo
11:38 pm - 8:20 pm
SFO
-
CAG
35h 42m
2 stops
Multiple Airlines Logo
4:05 pm - 7:49 pm
CAG
-
SFO
36h 44m
2 stops
$881Multiple Airlines
Sat, Aug 8 - Wed, Aug 19
Multiple Airlines Logo
11:38 pm - 8:20 pm
SFO
-
CAG
35h 42m
2 stops
Multiple Airlines Logo
4:05 pm - 4:15 pm
CAG
-
SFO
33h 10m
1 stop
$931Multiple Airlines
Sat, Aug 8 - Wed, Aug 19
Multiple Airlines Logo
10:47 pm - 5:05 pm
SFO
-
CAG
33h 18m
2 stops
Multiple Airlines Logo
4:05 pm - 4:15 pm
CAG
-
SFO
33h 10m
1 stop
$945Multiple Airlines
Sat, Aug 8 - Wed, Aug 19
Multiple Airlines Logo
10:47 pm - 5:05 pm
SFO
-
CAG
33h 18m
2 stops
Multiple Airlines Logo
9:55 am - 12:40 pm
CAG
-
SFO
35h 45m
2 stops
$970Multiple Airlines
Sun, Sep 27 - Wed, Oct 14
Multiple Airlines Logo
7:35 pm - 8:20 pm
SFO
-
CAG
15h 45m
1 stop
Multiple Airlines Logo
3:10 pm - 2:30 pm
CAG
-
SFO
32h 20m
2 stops
$974Multiple Airlines
Mon, Sep 21 - Mon, Sep 28
Multiple Airlines Logo
4:45 pm - 11:20 pm
SFO
-
CAG
21h 35m
2 stops
Multiple Airlines Logo
3:30 pm - 2:40 pm
CAG
-
SFO
32h 10m
2 stops
$976Multiple Airlines
Mon, Sep 21 - Tue, Sep 29
Multiple Airlines Logo
4:30 pm - 11:50 pm
SFO
-
CAG
22h 20m
2 stops
Multiple Airlines Logo
8:10 pm - 2:30 pm
CAG
-
SFO
27h 20m
2 stops
$977Multiple Airlines
Sun, Sep 27 - Wed, Oct 14
SWISS Logo
7:35 pm - 8:20 pm
SFO
-
CAG
15h 45m
1 stop
SWISS Logo
10:00 am - 4:15 pm
CAG
-
SFO
15h 15m
1 stop
$1,008SWISS
Thu, Oct 1 - Sun, Oct 11
Multiple Airlines Logo
4:45 pm - 8:50 am
SFO
-
CAG
31h 05m
3 stops
Multiple Airlines Logo
3:25 pm - 2:40 pm
CAG
-
SFO
32h 15m
2 stops
$1,012Multiple Airlines
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.

What is the most popular layover airport when flying from San Francisco to Cagliari?

Percentage of 1-stop round-trip flights from San Francisco to Cagliari chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Zurich (ZRH) is the top choice – 55% of KAYAK users who clicked on 1-stop flights from San Francisco to Cagliari picked an itinerary connecting there.

What is the cheapest layover airport when flying from San Francisco to Cagliari?

Average round-trip price for 1-stop flights from San Francisco to Cagliari clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Barcelona (BCN) offer the most affordable fares, with an average round-trip price of $852.

Which layover airport offers the shortest total travel time from San Francisco to Cagliari?

Shortest average total travel time for 1-stop one-way flights from San Francisco to Cagliari via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Zurich (ZRH) for the shortest journey. The average one-way travel time for flights connecting there is 16h 55m.

Which layover airport has the quickest connection when flying from San Francisco to Cagliari?

Average layover duration at different layover airports for 1-stop one-way flights from San Francisco to Cagliari, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Zurich (ZRH) often has the shortest layovers from San Francisco to Cagliari, with an average of 3h 15m.

Good to know

Cheapest flight$390
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 $390 for a one-way ticket and $829 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.

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

    In the past 5 days, the cheapest round-trip tickets from San Francisco to Cagliari were found on SWISS ($1,008) and Delta ($1,022).

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 1969 reviews
7.1Food
6.8Entertainment
7.7Boarding
7.4Comfort
8.3Crew
Airline reviews

3hr delay and then missed connecting flight with another 6hr wait at the airport before getting a continuation to my trip, worst trip ever in my 50+years of flight travel

4.0 OkayAnonymous, May 2026
TPA - ZRH
Read more SWISS reviews

3hr delay and then missed connecting flight with another 6hr wait at the airport before getting a continuation to my trip, worst trip ever in my 50+years of flight travel

Without a doubt, my “customer service” experience with SWISS was the worst of my life. Multiple disconnections in conversations, very cold and indifferent staff, failure to follow up with promised status updates — simply put, T. H. E. W. O. R. S. T. A full week later, and I am STILL waiting to hear from them. Never again for me with SWISS. Disgraceful.

The flight and all amenities were good to excellent. SWISS was awful to deal with. Every step of the way they nickel and dime you. Chose your seats? $14. Change your seats… No accounting for the prior payment. You get billed again. 17 pound restriction on overhead luggage, nonsense. It’s a weight in the plane whether it’s in the overhead or in check baggage. They just milk you for every cent they can and I resent it. The flight was excellent.

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

The flight itself was fine, but due to a snow delay my connection to Lisbon was delayed by six hours. Despite this, Swiss Air still managed to lose my luggage. Not acceptable. Someone else on the flight also lost their luggage.

Bad experience overall. Crew did not provide food for our 2 year old (even though we specifically bought a child infant seat for her and literally bought another full price flight), which was unacceptable. And we had to pay $310 each way to carry our ski equipment even though they advertise it as something that is free. Tickets were purchased the same way as usual, but they told us we had Economy Light tickets (I never elected to have such seats). Just plain manipulation and false advertisment. Very disappointed overall about this airline.

The trip was great until my luggage was lost on transfer from United to Swiss. It took Swiss 3 days to get my luggage to me though it was located almost immediately.

Made us gate check carry ons Then didn’t get them on the plane. Service they used didn’t deliver our carry ons for more than a day Total mess

Horrible!! The WiFi was not working, the food was awful

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.

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

Information on your arrival and departure airports