$380 Cheap Flights from Boston (BOS) to Cagliari (CAG)

View $380 flight on Sun, Aug 16, 2026Opens in a new window

Popular airlines from Logan International Airport (BOS) to Elmas Airport (CAG)

Cheap Flights from Boston to Cagliari (BOS-CAG)

Prices were available within the past 7 days and start at $380 for one-way flights and $461 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Apr 22 - Thu, Apr 30
BOS
Boston
CAG
Cagliari
$461 Roundtrip, found 5 days ago
$461
Roundtrip
found 5 days ago
Select Air Canada flight, departing Wed, Apr 22 from Boston to Cagliari, returning Thu, Apr 30, priced at $461 found 5 days ago
Air Canada
Wed, Apr 15 - Tue, Apr 21
BOS
Boston
CAG
Cagliari
$466 Roundtrip, found 1 day ago
$466
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Apr 15 from Boston to Cagliari, returning Tue, Apr 21, priced at $466 found 1 day ago
Air Canada
Sun, Aug 16 - Tue, Aug 25
BOS
Boston
CAG
Cagliari
$490 Roundtrip, found 1 day ago
$490
Roundtrip
found 1 day ago
Select Air Canada flight, departing Sun, Aug 16 from Boston to Cagliari, returning Tue, Aug 25, priced at $490 found 1 day ago
Lufthansa
Wed, Apr 15 - Tue, Apr 21
BOS
Boston
CAG
Cagliari
$493 Roundtrip, found 1 day ago
$493
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Apr 15 from Boston to Cagliari, returning Tue, Apr 21, priced at $493 found 1 day ago
Air Canada
Sun, Apr 19 - Mon, Apr 27
BOS
Boston
CAG
Cagliari
$498 Roundtrip, found 4 days ago
$498
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sun, Apr 19 from Boston to Cagliari, returning Mon, Apr 27, priced at $498 found 4 days ago
Air Canada
Wed, Apr 15 - Thu, Apr 23
BOS
Boston
CAG
Cagliari
$511 Roundtrip, found 1 day ago
$511
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Apr 15 from Boston to Cagliari, returning Thu, Apr 23, priced at $511 found 1 day ago
United
Wed, Apr 22 - Thu, Apr 30
BOS
Boston
CAG
Cagliari
$516 Roundtrip, found 5 days ago
$516
Roundtrip
found 5 days ago
Select United flight, departing Wed, Apr 22 from Boston to Cagliari, returning Thu, Apr 30, priced at $516 found 5 days ago
Air Canada
Wed, May 6 - Thu, May 14
BOS
Boston
CAG
Cagliari
$521 Roundtrip, found 2 days ago
$521
Roundtrip
found 2 days ago
Select Air Canada flight, departing Wed, May 6 from Boston to Cagliari, returning Thu, May 14, priced at $521 found 2 days ago
Swiss International Air Lines
Tue, May 26 - Thu, Jun 4
BOS
Boston
CAG
Cagliari
$535 Roundtrip, found 6 hours ago
$535
Roundtrip
found 6 hours ago
Select Swiss International Air Lines flight, departing Tue, May 26 from Boston to Cagliari, returning Thu, Jun 4, priced at $535 found 6 hours ago
Iberia
Mon, Aug 17 - Thu, Aug 27
BOS
Boston
CAG
Cagliari
$537 Roundtrip, found 1 day ago
$537
Roundtrip
found 1 day ago
Select Iberia flight, departing Mon, Aug 17 from Boston to Cagliari, returning Thu, Aug 27, priced at $537 found 1 day ago

Alternative airports near Cagliari

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Elmas CAG. Cheapest and Closest option available. Average driving time to city center is 9 minutes. Flights from $783
CAG
Elmas
CheapestClosest
Average driving time to city center9 min
Flights from $783
Flights from Boston (BOS) to Cagliari (CAG)
Origin airport
Logan Intl.
Destination airport
Elmas
Airlines serving
Air Canada, Austrian Airlines, British Airways, Delta, Iberia, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines
Roundtrip price
$461
Distance
4030 mi

Boston to Cagliari Flights

The cheapest times to fly from Boston to Cagliari

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to Cagliari are during the month of April. You can find some of the cheapest flights from Boston to Cagliari with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to Cagliari

Sunday is one of the best days to book for cheap flights from Boston to Cagliari: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to Cagliari

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to Cagliari in 2025. You can also book with separate airlines for your outbound and return journeys, from $380 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to Cagliari flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to Cagliari airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Elmas Airport (CAG) cost?
Get a cheap one-way flight from $380 or cheap return flight from $461 from Logan Intl. Airport (BOS) to Elmas Airport (CAG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Logan Intl. Airport (BOS) to Elmas Airport (CAG)?
Planning your getaway for April is a good way to save, as it's the cheapest month for flights between BOS and CAG. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Logan Intl. Airport (BOS) to Elmas Airport (CAG)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BOS to CAG. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from Logan Intl. Airport (BOS) to Elmas Airport (CAG)?
There are no daily direct flights available from Logan Intl. Airport (BOS) to Elmas Airport (CAG). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from BOS to CAG?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Logan Intl. Airport (BOS) to Elmas Airport (CAG)?
To reach Elmas Airport (CAG) on schedule, select a flight that leaves Logan Intl. Airport (BOS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Elmas Airport (CAG) last-minute?
Last-minute fares from BOS to CAG are usually more expensive. To secure the cheapest rates, start looking for flights early. That being said, if you're flexible with your travel plans, it's possible to score a cheap ticket right before your trip.
Is it cheaper to book a BOS to CAG flight and hotel package?
You'll generally save money by securing a BOS to CAG flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After choosing your preferred flights and accommodations, consider other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Elmas Airport (CAG)?
If you reserved your BOS to CAG flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

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*Available to One Key members.