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Cagliari

$266+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CAG
ago. 3 — ago. 101
dom. 8/3
dom. 8/10
1 adult, Economy
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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 julio 29, 2025.

Round-trip from

$485
(Booking.com)

One-way from

$266
(Kiwi.com)

Popular in

February

Cheapest in

January

Average price

$1,016
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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High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 julio 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
mar. 10/711:00 pmBOS - CAG
1 stop17h 55mMultiple Airlines
mié. 10/1511:40 pmCAG - BOS
1 stop27h 35mMultiple Airlines
Deal found 7/29$488
This Kiwi.com deal was found by Cheapflights users on 7/28. 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. 10/129:40 pmBOS - CAG
1 stop16h 45mSWISS
mar. 10/218:55 amCAG - BOS
1 stop12h 30mSWISS
Deal found 7/28$530
This Iberia deal was found by Cheapflights users on 7/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/2611:00 pmBOS - CAG
1 stop17h 55mIberia
lun. 9/811:55 pmCAG - BOS
1 stop27h 20mIberia
Deal found 7/29$532
This lol.travel deal was found by Cheapflights users on 7/29. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/58:05 pmBOS - CAG
1 stop15h 30mLufthansa
lun. 8/187:25 pmCAG - BOS
2 stops28h 15mLufthansa
Deal found 7/29$537
This Ovago deal was found by Cheapflights users on 7/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/129:20 pmBOS - CAG
2 stops34h 45mBritish Airways
mar. 10/212:55 pmCAG - BOS
2 stops37h 24mBritish Airways
Deal found 7/29$577

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 julio 29, 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. 10/12

5:05 pm-8:25 pm

1 stop21h 20m

Cagliari Elmas

mar. 10/21

8:55 am-5:55 pm

2 stops15h 00m

$485

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

dom. 10/12

5:05 pm-8:25 pm

1 stop21h 20m

Cagliari Elmas

mar. 10/21

8:55 am-3:25 pm

1 stop12h 30m

$528

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

mar. 8/26

11:00 pm-10:55 pm

1 stop17h 55m

Cagliari Elmas

lun. 9/8

11:55 pm-9:15 pm

1 stop27h 20m

$532

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

mar. 8/5

8:05 pm-5:35 pm

1 stop15h 30m

Cagliari Elmas

lun. 8/18

7:25 pm-5:40 pm

2 stops28h 15m

$537

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

dom. 10/12

9:20 pm-2:05 pm

2 stops34h 45m

Cagliari Elmas

mar. 10/21

2:55 pm-10:19 pm

2 stops37h 24m

$577

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

mar. 9/2

11:00 pm-10:55 pm

1 stop17h 55m

$266

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

mié. 9/3

6:00 am-6:35 pm

2 stops30h 35m

$405

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

mié. 9/3

4:30 pm-6:50 pm

1 stop20h 20m

$472

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 julio 29, 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 28% 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 julio 29, 2025.
Read through reviews of airlines operating flights from Boston to Cagliari, such as SWISS, Air Canada, and Iberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,683 reviews

Food

7.1

Comfort

7.4

Overall

7.5

Crew

8.2

Boarding

7.7

Entertainment

6.8

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
1,683 reviews
SWISS
7.5
Good
1,683 reviews

Food

7.1

Comfort

7.4

Overall

7.5

Crew

8.2

Boarding

7.7

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.
Air Canada
7.1
Good
9,826 reviews
SWISS
7.5
Good
1,683 reviews

Food

7.1

Comfort

7.4

Overall

7.5

Crew

8.2

Boarding

7.7

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.
Iberia
7.0
Good
2,859 reviews
SWISS
7.5
Good
1,683 reviews

Food

7.1

Comfort

7.4

Overall

7.5

Crew

8.2

Boarding

7.7

Entertainment

6.8

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
7,265 reviews
SWISS
7.5
Good
1,683 reviews

Food

7.1

Comfort

7.4

Overall

7.5

Crew

8.2

Boarding

7.7

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.
British Airways
6.6
Okay
7,208 reviews
SWISS
7.5
Good
1,683 reviews

Food

7.1

Comfort

7.4

Overall

7.5

Crew

8.2

Boarding

7.7

Entertainment

6.8

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 $528 on this airline. Additional options worth looking into are Iberia and Lufthansa, starting at $532 and $537 round-trip. SWISS is priced at 43% 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

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 julio 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest$573Average$691FlexibilityNo cancel feeOn-time88%
LufthansaCheapest$670Average$1,111FlexibilityNo cancel feeOn-time76%
ITA AirwaysCheapest$796Average$1,128FlexibilityNo cancel feeOn-time81%

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