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Cagliari

$313+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CAG
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap 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 January 27, 2026.

This British Airways deal was found by Cheapflights users on 1/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:35 pm
BOS
-
CAG
1 stop18h 50m
British Airways
Thu 8/209:25 pm
CAG
-
BOS
1 stop28h 40m
British Airways
Deal found 1/26$544
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Wed 8/55:45 am
BOS
-
CAG
2 stops30h 25m
Multiple Airlines
Tue 8/116:35 pm
CAG
-
BOS
1 stop29h 05m
Multiple Airlines
Deal found 1/27$567
This Delta deal was found by Cheapflights users on 1/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:10 pm
BOS
-
CAG
1 stop12h 35m
Delta
Tue 8/185:05 pm
CAG
-
BOS
1 stop31h 25m
Delta
Deal found 1/26$569
This Orbitz deal was found by Cheapflights users on 1/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/59:20 pm
BOS
-
CAG
1 stop15h 30m
Iberia
Tue 8/117:30 pm
CAG
-
BOS
1 stop26h 40m
Iberia
Deal found 1/27$587
This British Airways deal was found by Cheapflights users on 1/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:35 pm
BOS
-
CAG
1 stop12h 30m
British Airways
Wed 8/198:15 pm
CAG
-
BOS
1 stop26h 45m
British Airways
Deal found 1/26$593
This KLM deal was found by Cheapflights users on 1/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/108:25 pm
BOS
-
CAG
1 stop14h 00m
KLM
Sat 5/165:05 pm
CAG
-
BOS
1 stop31h 25m
KLM
Deal found 1/25$616
This British Airways deal was found by Cheapflights users on 1/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:35 pm
BOS
-
CAG
1 stop18h 00m
British Airways
Thu 8/209:25 pm
CAG
-
BOS
1 stop28h 40m
British Airways
Deal found 1/26$619
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/21:10 pm
BOS
-
CAG
2 stops25h 15m
British Airways
Wed 9/168:15 pm
CAG
-
BOS
1 stop22h 20m
British Airways
Deal found 1/27$625
This FlightHub deal was found by Cheapflights users on 1/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:05 pm
BOS
-
CAG
1 stop15h 40m
Lufthansa
Mon 7/276:35 pm
CAG
-
BOS
1 stop29h 05m
Lufthansa
Deal found 1/26$627
This British Airways deal was found by Cheapflights users on 1/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/119:50 pm
BOS
-
CAG
1 stop15h 30m
British Airways
Tue 8/182:55 pm
CAG
-
BOS
1 stop32h 05m
British Airways
Deal found 1/26$633

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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$616
(KLM)

One-way from

$313
(Kiwi.com)
Provider with most accurate pricing for Boston Logan Intl-Cagliari Elmas flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Cagliari Elmas flights.
Search Deals
From Boston Logan Intl to Cagliari Elmas
Search Deals
One-way flight from Boston Logan Intl to Cagliari Elmas
Search Deals

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 January 27, 2026.
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

Sun 5/10

8:25 pm-4:25 pm

1 stop14h 00m

Cagliari Elmas

Sat 5/16

5:05 pm-6:30 pm

1 stop31h 25m

$616

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Mon 7/20

5:45 pm-5:45 pm

2 stops18h 00m

Cagliari Elmas

Mon 7/27

6:00 pm-5:40 pm

2 stops29h 40m

$670

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Tue 7/7

8:05 pm-5:45 pm

1 stop15h 40m

Cagliari Elmas

Thu 7/16

6:55 pm-5:40 pm

2 stops28h 45m

$697

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Tue 7/21

9:50 pm-7:20 pm

1 stop15h 30m

Cagliari Elmas

Thu 7/30

9:25 pm-5:00 pm

1 stop25h 35m

$704

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Sun 7/19

9:55 pm-7:10 pm

1 stop15h 15m

Cagliari Elmas

Mon 7/27

8:00 pm-4:55 pm

1 stop26h 55m

$704

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Sun 7/26

9:55 pm-7:10 pm

1 stop15h 15m

Cagliari Elmas

Tue 8/4

2:55 pm-5:00 pm

1 stop32h 05m

$704

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Sun 5/10

3:40 pm-5:45 pm

2 stops20h 05m

Cagliari Elmas

Sat 5/16

6:35 pm-5:40 pm

1 stop29h 05m

$731

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Wed 7/15

9:50 pm-8:25 pm

1 stop16h 35m

Cagliari Elmas

Thu 7/23

9:25 pm-5:00 pm

1 stop25h 35m

$744

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Wed 7/15

9:50 pm-8:25 pm

1 stop16h 35m

Cagliari Elmas

Wed 7/22

8:15 pm-5:00 pm

1 stop26h 45m

$744

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Mon 7/20

7:35 pm-2:05 pm

1 stop12h 30m

Cagliari Elmas

Mon 7/27

8:00 pm-4:55 pm

1 stop26h 55m

$744

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 19 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Cagliari flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

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 January 27, 2026.
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
7.6
Good
1,863 reviews

Entertainment

6.8

Crew

8.3

Food

7.1

Overall

7.6

Comfort

7.4

Boarding

7.7

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.
SWISS
7.6
Good
1,863 reviews
SWISS
7.6
Good
1,863 reviews

Entertainment

6.8

Crew

8.3

Food

7.1

Overall

7.6

Comfort

7.4

Boarding

7.7

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
1,237 reviews
SWISS
7.6
Good
1,863 reviews

Entertainment

6.8

Crew

8.3

Food

7.1

Overall

7.6

Comfort

7.4

Boarding

7.7

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
7,749 reviews
SWISS
7.6
Good
1,863 reviews

Entertainment

6.8

Crew

8.3

Food

7.1

Overall

7.6

Comfort

7.4

Boarding

7.7

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 $616, KLM can have you in Cagliari from Boston in 14h. The distance between Boston and Cagliari is about 4027 mi. This flight may include one or multiple stops.

  • 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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$531Average$662FlexibilityNo cancel feeOn-time79%
VuelingCheapest$588Average$700FlexibilityNo cancel feeOn-time88%
LufthansaCheapest$608Average$1,042FlexibilityNo cancel feeOn-time76%

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