BOS - CAG

$311 Find Cheap Flights from Boston 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 Boston to Cagliari departing on 8/16. 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
$659
LEVEL
Wed 9/23Wed 9/30
BOS - CAG • 1 stop
Cheapest one-way
$311
LEVEL
Sun 8/16
BOS - CAG • 1 stop
Top airlines
Cheapest • from $659 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boston and Cagliari. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $733 (round-trip)
Shortest trip • 11h 58m (one-way)
Insights
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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

Wed, Sep 23 - Wed, Sep 30
LEVEL Logo
10:55 pm - 10:35 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
17h 40m1 stop Barcelona-El Prat
LEVEL Logo
2:00 pm - 9:05 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
13h 05m1 stop Barcelona-El Prat
$659LEVEL
Thu, Oct 8 - Sat, Oct 17
LEVEL Logo
10:55 pm - 8:50 amBOS  Boston Logan Intl-CAG Cagliari Elmas
27h 55m1 stop Barcelona-El Prat
LEVEL Logo
7:40 pm - 9:45 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
32h 05m1 stop Barcelona-El Prat
$683LEVEL
Thu, Oct 8 - Sat, Oct 17
Multiple Airlines Logo
9:15 pm - 9:10 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
17h 55m2 stops Dublin Bergamo Orio Al Serio
Multiple Airlines Logo
7:40 pm - 9:45 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
32h 05m1 stop Barcelona-El Prat
$696Multiple Airlines
Wed, Sep 16 - Tue, Oct 20
Multiple Airlines Logo
9:05 pm - 8:00 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
16h 55m1 stop Madrid Barajas
Multiple Airlines Logo
4:15 pm - 9:05 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
34h 50m2 stops Luqa Malta Intl Barcelona-El Prat
$704Multiple Airlines
Wed, Sep 2 - Tue, Sep 8
Lufthansa Logo
8:05 pm - 5:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
15h 40m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:35 pm - 5:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
29h 05m1 stop Munich Franz Josef Strauss
$860Lufthansa
Tue, Sep 15 - Wed, Sep 23
Lufthansa Logo
8:05 pm - 5:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
15h 40m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:35 pm - 5:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
29h 05m1 stop Munich Franz Josef Strauss
$860Lufthansa
Wed, Sep 2 - Tue, Sep 8
Lufthansa Logo
8:05 pm - 5:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
15h 40m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:35 pm - 11:59 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
35h 24m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl
$873Lufthansa
Wed, Sep 16 - Tue, Oct 20
Delta Logo
4:40 pm - 4:25 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
17h 45m1 stop Amsterdam Schiphol
Delta Logo
5:05 pm - 1:15 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
26h 10m1 stop Amsterdam Schiphol
$887Delta
Mon, Sep 14 - Thu, Sep 24
Delta Logo
9:20 am - 4:25 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
25h 05m2 stops New York John F Kennedy Intl Amsterdam Schiphol
Delta Logo
5:05 pm - 4:35 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
29h 30m1 stop Amsterdam Schiphol
$891Delta
Mon, Sep 14 - Thu, Sep 24
Delta Logo
9:20 pm - 4:25 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
37h 05m2 stops New York John F Kennedy Intl Amsterdam Schiphol
Delta Logo
5:05 pm - 11:10 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
36h 05m2 stops Amsterdam Schiphol New York John F Kennedy Intl
$907Delta
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 provide the cheapest flights from Boston 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 Boston to Cagliari were found on LEVEL ($659) and Lufthansa ($802).

Good to know

Cheapest flight

$311
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 5 days, the lowest price for a flight from Boston to Cagliari was $311 for a one-way ticket and $659 for a round-trip.

  • 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?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Boston and Cagliari, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Boston to Cagliari, Delta or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Boston to Cagliari are Delta and Lufthansa. With an average price for the route of $1,062 and an overall rating of 7.8, Delta is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $952 and an overall rating of 6.8.

  • 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 airlines flying 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.
7.8
DeltaOverall score based on 8497 reviews
7.8Comfort
8.5Crew
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

Stewardess was not accommodating when I requested a second drink.

8.0 ExcellentAnonymous, Aug 2026
Read more Delta reviews

Stewardess was not accommodating when I requested a second drink.

Although I know the Airlines cannot control the situation when there’s a ground stoppage, it would’ve been nicer if we would have had more up-to-date information clarity around the delays. Additionally, I think the delays also took a toll on the Cabin crew, particularly the lead flight attendant in first class. She was not very friendly when we boarded the plane for many of the passengers. Number one she refused to hang a garment bag in the front closet for a first class passenger, she was unwilling to dispose of an empty bottle in the trash as I was boarding (despite drinking a bottle of water herself and needing to disregard), and she was very combative with a passenger, who needed to access something from his bag that was Gate checked. Frankly, it was really unfortunate as I’ve never seen a flight attendant behave that way directly to the passengers, particularly when none of us had done anything wrong.

Flight from Savannah arrived very late and we did not take off till 2 hours after scheduled departure!

Very good seat and service. No complaints about the food. Take off delayed due to airport traffic

It is usually very pleasant. Good service for the price, international flights are even better

Flight attendant was very poor in taking care or showing attention. I slept up front for a few and missed the snacks. She saw me many times, went by me many times and never once asked if I needed anything. The whole 2 hours flight. And this is to a Diamond member in first.

I thought the service was very nice and pleasant. There were no hiccups and no issues so overall a good experience.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Flight was 1.5 hours late to depart so changed flights to Swiss Air.

Entertainment was good. Food was mediocre. Service was mediocre. New plane was smooth

Staff was great. Space in bathrooms was very good. Boarding went smoothly due to aisles. I would like more room in coach. 2 more inches would be helpful. Lost luggage was a big issue; more on the administrative side than flight related, but diminished the flight experience.

Flight was cancelled and I got rebooked with anther airline. Also had booked a direct flight and got a layover.

The seats are designed for 12 years old, but pretty uncomfortable for the average adulte!!

Boston Logan is a crummy airport - signage is terrible or lacking in areas. Boarding seemed to be a free for all and with all the different airlines speaking, you couldn't tell who was supposed to be where and when. Plain and simple, airlines should board from the back of the plane to the front. Also someone was sitting in my seat. By the time that was figured out, I had to place my overhead behind me which made de-planing more difficult. Logan is not Lufthansa's fault so that is not on them, Boarding is on them! Still, overall it was a Good Experience flying with Lufthansa. This is not my first flight with them...

The Lufthansa part was wonderful. The short connection flight was not.

Both flights were late for what appeared to be the airline’s not having the planes ready. Arrived over 6 hours late.

Seats were not the most comfortable and food options weren’t great but overall but everything else was excellent

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

Information on your arrival and departure airports