BOS - CAG

$449 Find Cheap Flights from Boston to Cagliari

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Cagliari departing on 4/20. 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 Boston 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 Boston to Cagliari, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$449
Multiple Airlines
lun. 4/20lun. 4/27
BOS - CAG • 2 stops
Cheapest one-way
Multiple Airlines
lun. 1/12
BOS - CAG • multi-stop
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Cagliari (BOS-CAG)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston 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 Boston to Cagliari

lun., abr. 20 - lun., abr. 27
Multiple Airlines Logo
6:40 pm - 7:50 am
BOS
-
CAG
55h 10m
2 stops
Multiple Airlines Logo
6:00 pm - 9:52 am
CAG
-
BOS
45h 52m
2 stops
$449Multiple Airlines
lun., abr. 20 - lun., abr. 27
Multiple Airlines Logo
6:40 pm - 7:50 am
BOS
-
CAG
55h 10m
2 stops
Multiple Airlines Logo
6:00 pm - 3:40 pm
CAG
-
BOS
27h 40m
1 stop
$496Multiple Airlines
jue., may. 14 - mar., may. 26
Multiple Airlines Logo
8:05 pm - 5:45 pm
BOS
-
CAG
15h 40m
1 stop
Multiple Airlines Logo
6:35 pm - 9:27 pm
CAG
-
BOS
32h 52m
2 stops
$571Multiple Airlines
vie., may. 15 - jue., may. 21
Multiple Airlines Logo
8:05 pm - 5:45 pm
BOS
-
CAG
15h 40m
1 stop
Multiple Airlines Logo
8:45 am - 5:45 pm
CAG
-
BOS
39h 00m
2 stops
$593Multiple Airlines
jue., may. 14 - mar., may. 26
Multiple Airlines Logo
8:05 pm - 6:15 pm
BOS
-
CAG
16h 10m
2 stops
Multiple Airlines Logo
6:35 pm - 9:27 pm
CAG
-
BOS
32h 52m
2 stops
$594Multiple Airlines
vie., may. 15 - jue., may. 21
Multiple Airlines Logo
8:05 pm - 5:45 pm
BOS
-
CAG
15h 40m
1 stop
Multiple Airlines Logo
8:45 am - 3:30 pm
CAG
-
BOS
12h 45m
1 stop
$595Multiple Airlines
jue., may. 14 - mar., may. 26
Lufthansa Logo
8:05 pm - 5:45 pm
BOS
-
CAG
15h 40m
1 stop
Lufthansa Logo
6:35 pm - 5:40 pm
CAG
-
BOS
29h 05m
1 stop
$602Lufthansa
jue., may. 14 - lun., may. 25
Lufthansa Logo
8:05 pm - 5:45 pm
BOS
-
CAG
15h 40m
1 stop
Lufthansa Logo
6:35 pm - 5:40 pm
CAG
-
BOS
29h 05m
1 stop
$611Lufthansa
jue., may. 14 - lun., may. 25
Lufthansa Logo
8:05 pm - 5:45 pm
BOS
-
CAG
15h 40m
1 stop
Lufthansa Logo
6:35 pm - 3:40 pm
CAG
-
BOS
27h 05m
2 stops
$613Lufthansa
mar., mar. 10 - mar., mar. 24
Multiple Airlines Logo
11:40 pm - 12:35 pm
BOS
-
CAG
31h 55m
1 stop
Multiple Airlines Logo
9:30 am - 9:55 pm
CAG
-
BOS
17h 25m
2 stops
$618Multiple Airlines
Booking Insights

KAYAK's insights & trends for Boston to Cagliari flights

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

Which airlines fly non-stop between Boston and Cagliari?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Boston to Cagliari.

There are 3 airlines that fly nonstop from Boston to Cagliari. They are: Lufthansa, SWISS and Vueling. The cheapest price of all airlines flying this route was found with SWISS at $531 for a round-trip flight. On average, the best prices for this route can be found at SWISS.

Good to know

Cheapest flight$449
Flight from Boston to Cagliari

When to book flights from Boston to Cagliari

Are your dates flexible? Find out the best times to travel from Boston 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 Boston to Cagliari

  • What is the cheapest flight from Boston to Cagliari?

    In the last 3 days, the lowest price for a flight from Boston to Cagliari was $487 for a round-trip ticket.

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

    Yes, you’ll need a passport to travel to Cagliari from Boston.

  • Which airports will I be using when flying from Boston to Cagliari?

    Boston airport is called Boston Logan Intl and the only airport in Cagliari is Cagliari Elmas.

  • Which aircraft models fly most regularly from Boston to Cagliari?

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

  • Which airline alliances offer flights from Boston to Cagliari?

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

  • Which is the best airline for flights from Boston to Cagliari, SWISS or Vueling?

    The two airlines most popular with KAYAK users for flights from Boston to Cagliari are SWISS and Vueling. With an average price for the route of $662 and an overall rating of 7.5, SWISS is the most popular choice. Vueling is also a great choice for the route, with an average price of $700 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Boston 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 Boston to Cagliari.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cagliari from Boston 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 Boston 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 Boston with another airline. Booking your flights between Boston 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 Boston 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 Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Boston to Cagliari

 
See real verified KAYAK customer reviews for airlines flying from Boston 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 Boston 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 1846 reviews
8.3Crew
7.1Food
6.8Entertainment
7.7Boarding
7.4Comfort
Airline reviews

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

2.0 MediocreAndrew, Dec 2025
ZRH - FCO
Read more SWISS reviews

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.

Food used to be better and comfort was not attainable after 5 hours everything starts hurting.

horrible.. they cause such a problem and my daughter 14 years old was stranded in san francisco

I can’t even the whole trip was a catastrophe

Poor. Seats uncomfortable. No leg room. Hot and humid the whole trip. Food and staffs were ok.

The seats were so close together, when the man in front of me put his seat back, the screen in front of me was 9 inches from my face. There is no way to lean forward if I needed to pick something up. It was pretty uncomfortable for a ten hour flight. I was very surprised.

The food was good. Most the staff was pleasant. The flight would be drastically improved with WiFi on a long international flight.

The whole experience was positive. Crew very friendly and helpful. Very greedy with pre-seat allocation. Web site too complicated

All very smooth airside. Check-in counters were understaffed. The wait is too long. Only two, then three counters were open. Waiting time of 35 minutes is too long. Pls review your rota.

To complex. So many types of fare. This made the boarding a caos.

Needs faster boarding procedure. Not their fault but should still take into account indifferent flyers.

Very fast boarding. Crew members were super nice. I loved it!

My luggage got lost and until today there is no solution to the problem. It's still missing

I am writing to demand an immediate refund and compensation for the absolutely unacceptable experience I endured with VUELING this week. On Monday, my flight was canceled, and despite this, I have yet to receive any refund. I was then taken to a hotel in a terrible location, where no food or even water was provided. The next day, I was rebooked on another flight, for which I had to personally cover an additional €50 in transportation costs—only to have that flight canceled as well. After waiting 10 hours, only 10 of us were offered alternative accommodations, while the rest were left stranded. We were forced to remain in this situation until Thursday without a single explanation or proper assistance. During this entire ordeal, we were only provided with breakfast and dinner, while being charged extra for drinks. This level of treatment is completely unacceptable. I expect an immediate refund for the cancelled flights and full compensation for the inconvenience, additional expenses, and the significant distress caused.

Only food for sale. Did not even offer water. No entertainment

Checking was efficient and quick. Adequate luggage space. Food for purchase only at high prices

Nothing. There was no flight. They cancelled the flight with no replacement about 9 hours before takeoff.

The flight was canceled at the last minute. Alternative flight was booked after 6 hours wait in Malaga airport.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

Everything you need to know for your flight from Boston to Cagliari

Information on your arrival and departure airports