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Cagliari

$438+ Cheap flights from Boston (BOS) to Cagliari (CAG)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CAG
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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Cheap flight deals from Boston to Cagliari

Best flights from Boston to Cagliari
Discover carefully curated flight deals from Boston to Cagliari that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 12, 2025.

This Trip.com deal was found by Cheapflights users on 12/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/106:30 pmBOS - CAG
2 stops16h 05mMultiple Airlines
sáb. 5/169:35 amCAG - BOS
2 stops17h 10mMultiple Airlines
Deal found 12/10$453
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/2610:40 pmBOS - CAG
1 stop31h 55mMultiple Airlines
jue. 3/51:20 pmCAG - BOS
1 stop13h 35mMultiple Airlines
Deal found 12/10$572
This Mytrip deal was found by Cheapflights users on 12/10. 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.
sáb. 1/248:40 pmBOS - CAG
2 stops18h 30mMultiple Airlines
sáb. 1/319:20 pmCAG - BOS
2 stops28h 40mMultiple Airlines
Deal found 12/10$612
This Mytrip deal was found by Cheapflights users on 12/9. 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.
jue. 1/87:50 pmBOS - CAG
2 stops19h 50mMultiple Airlines
jue. 1/156:00 amCAG - BOS
2 stops17h 50mMultiple Airlines
Deal found 12/9$613
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/16:05 pmBOS - CAG
2 stops20h 25mMultiple Airlines
sáb. 3/71:20 pmCAG - BOS
1 stop13h 35mMultiple Airlines
Deal found 12/10$626
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/278:40 pmBOS - CAG
3 stops57h 55mMultiple Airlines
sáb. 3/71:20 pmCAG - BOS
2 stops27h 05mMultiple Airlines
Deal found 12/10$629
This FlightHub deal was found by Cheapflights users on 12/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/168:05 pmBOS - CAG
1 stop15h 40mMultiple Airlines
sáb. 5/238:55 amCAG - BOS
1 stop12h 35mMultiple Airlines
Deal found 12/10$646

Find 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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$453
(Trip.com)

One-way from

$438
(Kiwi.com)
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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One-way flight from Boston Logan Intl to Cagliari Elmas
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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 diciembre 12, 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

dom. 5/10

6:30 pm-4:35 pm

2 stops16h 05m

Cagliari Elmas

sáb. 5/16

9:35 am-8:45 pm

2 stops17h 10m

$453

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

jue. 2/26

10:40 pm-12:35 pm

1 stop31h 55m

Cagliari Elmas

jue. 3/5

1:20 pm-8:55 pm

1 stop13h 35m

$572

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

sáb. 1/24

8:40 pm-9:10 pm

2 stops18h 30m

Cagliari Elmas

sáb. 1/31

9:20 pm-8:00 pm

2 stops28h 40m

$612

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

jue. 1/8

7:50 pm-9:40 pm

2 stops19h 50m

Cagliari Elmas

jue. 1/15

6:00 am-5:50 pm

2 stops17h 50m

$613

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

dom. 3/1

6:05 pm-8:30 pm

2 stops20h 25m

Cagliari Elmas

sáb. 3/7

1:20 pm-8:55 pm

1 stop13h 35m

$626

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

vie. 2/27

8:40 pm-12:35 pm

3 stops57h 55m

Cagliari Elmas

sáb. 3/7

1:20 pm-10:25 am

2 stops27h 05m

$629

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

sáb. 5/16

8:05 pm-5:45 pm

1 stop15h 40m

Cagliari Elmas

sáb. 5/23

8:55 am-3:30 pm

1 stop12h 35m

$646

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

lun. 6/1

10:50 pm-8:50 am

1 stop28h 00m

$438

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

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 December.
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 diciembre 12, 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 diciembre 12, 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
1,810 reviews

Crew

8.3

Food

7.1

Comfort

7.4

Entertainment

6.8

Boarding

7.7

Overall

7.5

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
1,810 reviews
SWISS
7.5
Good
1,810 reviews

Crew

8.3

Food

7.1

Comfort

7.4

Entertainment

6.8

Boarding

7.7

Overall

7.5

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
1,219 reviews
SWISS
7.5
Good
1,810 reviews

Crew

8.3

Food

7.1

Comfort

7.4

Entertainment

6.8

Boarding

7.7

Overall

7.5

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
7,626 reviews
SWISS
7.5
Good
1,810 reviews

Crew

8.3

Food

7.1

Comfort

7.4

Entertainment

6.8

Boarding

7.7

Overall

7.5

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.

  • 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 $588 and $608 round-trip.

  • 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$531Average$662FlexibilityNo cancel feeOn-time79%
VuelingCheapest$588Average$700FlexibilityNo cancel feeOn-time88%
LufthansaCheapest$608Average$1,045FlexibilityNo cancel feeOn-time76%

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