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Cagliari

$632+ Cheap flights from Boston (BOS) to Cagliari (CAG)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CAG
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find flight deals from Boston to Cagliari

Cheapest flights from Boston to Cagliari
Explore the most affordable flight options available from Boston to Cagliari. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:15 amBOS - CAG
2 stops31h 25mMultiple Airlines
Tue 12/29:30 amCAG - BOS
3 stops35h 22mMultiple Airlines
Deal found 10/26$632
This Mytrip deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:20 pmBOS - CAG
2 stops24h 00mMultiple Airlines
Sun 11/168:15 pmCAG - BOS
3 stops29h 40mMultiple Airlines
Deal found 10/27$1,110

Cheap flight deals from Boston to Cagliari

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Cagliari (CAG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$632
(Mytrip)

Popular in

February

Cheapest in

January

Average price

$555
Provider with most accurate pricing for Boston Logan Intl-Cagliari Elmas flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Cagliari Elmas flights.
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From Boston Logan Intl to Cagliari Elmas
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Highest demand for flights based on searches. 4% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Cagliari that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
Use the filters below to find and compare flights from Boston to Cagliari that are best for you.

Fly from

Boston

Fly to

Cagliari

Route

Depart

Return

Price

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Tue 11/25

6:15 am-7:40 pm

2 stops31h 25m

Cagliari Elmas

Tue 12/2

9:30 am-2:52 pm

3 stops35h 22m

$632

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Sun 3/29

5:50 pm-6:15 pm

1 stop18h 25m

Cagliari Elmas

Wed 4/1

6:25 pm-5:40 pm

1 stop29h 15m

$730

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Compare providers for flights from Boston to Cagliari

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Cagliari in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Cagliari flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Cagliari flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boston-Cagliari flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Cagliari flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Cagliari flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Cagliari

Have a flexible travel schedule? Discover the best time to fly to Cagliari from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest time of day to fly from BOS to CAG?

Find hourly flight availability from Boston to Cagliari. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

When flying from Boston to Cagliari, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 27% versus a flight at noon.

Reviews of airlines servicing Cagliari

Get insights into the airlines that provide service to Cagliari. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cagliari. Reviews last updated October 28, 2025.
Read through reviews of airlines operating flights from Boston to Cagliari, such as SWISS, Vueling, and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,774 reviews

Boarding

7.7

Entertainment

6.8

Crew

8.2

Comfort

7.4

Overall

7.5

Food

7.1

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.
SWISS
7.5
Good
1,774 reviews
SWISS
7.5
Good
1,774 reviews

Boarding

7.7

Entertainment

6.8

Crew

8.2

Comfort

7.4

Overall

7.5

Food

7.1

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.
Vueling
7.1
Good
1,204 reviews
SWISS
7.5
Good
1,774 reviews

Boarding

7.7

Entertainment

6.8

Crew

8.2

Comfort

7.4

Overall

7.5

Food

7.1

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.
Lufthansa
6.8
Okay
7,538 reviews
SWISS
7.5
Good
1,774 reviews

Boarding

7.7

Entertainment

6.8

Crew

8.2

Comfort

7.4

Overall

7.5

Food

7.1

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.

Related info for your journey

Find useful and relevant information for your journey from Boston to Cagliari. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Boston to Cagliari?

    For as low as $730, Lufthansa can have you in Cagliari from Boston in 18h 25m. The distance between Boston and Cagliari is about 4027 mi.

  • What are the cheapest airlines flying from Boston to Cagliari round-trip?

    Our cheapest airline available from Boston to Cagliari is SWISS. Our recent data shows that you can find tickets from as low as $531 on this airline. Additional options worth looking into are Vueling and Lufthansa, starting at $573 and $651 round-trip. SWISS is priced at 38% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Boston to Cagliari that include hotel bookings?

    Yes. In addition to deals on Boston to Cagliari flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Cagliari?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Cagliari.

  • Can I find deals for business class flights from Boston to Cagliari?

    Yes. Cheapflights offers flight deals from Boston to Cagliari by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Cagliari?

Book flights to Cagliari if you plan to visit one of these locations
Oristano

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Alternative routes for Boston to Cagliari

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Top 3 airlines flying from Boston to Cagliari

Discover the top 3 airlines that operate flights from Boston to Cagliari. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$531Average$662FlexibilityNo cancel feeOn-time79%
VuelingCheapest$573Average$700FlexibilityNo cancel feeOn-time88%
LufthansaCheapest$651Average$1,042FlexibilityNo cancel feeOn-time76%

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