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Cheap flights from Boston to Cagliari from $374

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Cagliari departing on 5/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Boston to Cagliari

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:40 am - 10:05 pm
BOS
-
CAG
29h 25m
2 stops
Multiple Airlines Logo
6:15 pm - 2:52 pm
CAG
-
BOS
26h 37m
3 stops
$531Multiple Airlines
Wed, Apr 15 - Tue, Apr 21
Multiple Airlines Logo
1:00 pm - 10:05 pm
BOS
-
CAG
27h 05m
3 stops
Multiple Airlines Logo
6:15 pm - 2:52 pm
CAG
-
BOS
26h 37m
3 stops
$540Multiple Airlines
Wed, Apr 15 - Tue, Apr 21
Multiple Airlines Logo
10:40 am - 10:05 pm
BOS
-
CAG
29h 25m
2 stops
Multiple Airlines Logo
7:50 am - 9:27 pm
CAG
-
BOS
19h 37m
2 stops
$544Multiple Airlines
Wed, Apr 15 - Tue, Apr 21
Multiple Airlines Logo
6:25 pm - 8:40 pm
BOS
-
CAG
20h 15m
2 stops
Multiple Airlines Logo
6:20 am - 7:12 pm
CAG
-
BOS
17h 52m
2 stops
$546Multiple Airlines
Sun, Mar 1 - Tue, Mar 10
Multiple Airlines Logo
8:05 pm - 5:45 pm
BOS
-
CAG
15h 40m
1 stop
Multiple Airlines Logo
8:30 pm - 3:10 pm
CAG
-
BOS
24h 40m
1 stop
$561Multiple Airlines
Wed, Apr 29 - Wed, May 13
Multiple Airlines Logo
6:45 pm - 8:10 am
BOS
-
CAG
55h 25m
2 stops
Multiple Airlines Logo
6:35 pm - 9:49 am
CAG
-
BOS
45h 14m
2 stops
$583Multiple Airlines
Wed, Apr 22 - Sun, Apr 26
Multiple Airlines Logo
5:40 pm - 10:35 pm
BOS
-
CAG
22h 55m
2 stops
Multiple Airlines Logo
1:40 pm - 3:35 pm
CAG
-
BOS
31h 55m
2 stops
$597Multiple Airlines
Wed, Apr 29 - Wed, May 13
Multiple Airlines Logo
6:45 pm - 5:45 pm
BOS
-
CAG
41h 00m
2 stops
Multiple Airlines Logo
7:05 pm - 9:49 am
CAG
-
BOS
44h 44m
2 stops
$605Multiple Airlines
Wed, Apr 22 - Sun, Apr 26
Multiple Airlines Logo
8:40 pm - 11:00 pm
BOS
-
CAG
20h 20m
2 stops
Multiple Airlines Logo
6:00 am - 10:37 pm
CAG
-
BOS
21h 37m
3 stops
$638Multiple Airlines
Sun, Mar 1 - Tue, Mar 10
Iberia Logo
10:50 pm - 8:50 am
BOS
-
CAG
28h 00m
1 stop
Iberia Logo
9:35 am - 5:00 pm
CAG
-
BOS
37h 25m
2 stops
$644Iberia
Wed, Apr 15 - Tue, Apr 21

Lufthansa flights from Boston to Cagliari

Our best Lufthansa deals on Boston to Cagliari flight tickets
Lufthansa
Jul 7
BOS8:05 pmBoston Logan Intl
15h 40m
1 stop
CAG5:45 pmCagliari Elmas
Jul 16
CAG6:55 pmCagliari Elmas
28h 45m
2 stops
BOS5:40 pmBoston Logan Intl
$699
Lufthansa
Jul 7
BOS8:05 pmBoston Logan Intl
15h 40m
1 stop
CAG5:45 pmCagliari Elmas
Jul 16
CAG6:35 pmCagliari Elmas
29h 05m
1 stop
BOS5:40 pmBoston Logan Intl
$703
Lufthansa
Apr 29
BOS7:30 pmBoston Logan Intl
16h 15m
2 stops
CAG5:45 pmCagliari Elmas
May 13
CAG6:35 pmCagliari Elmas
27h 05m
2 stops
BOS3:40 pmBoston Logan Intl
$833

Iberia flights from Boston to Cagliari

Our best Iberia deals on Boston to Cagliari flight tickets
Iberia
Apr 15
BOS10:50 pmBoston Logan Intl
28h 00m
1 stop
CAG8:50 amCagliari Elmas
Apr 21
CAG9:35 amCagliari Elmas
37h 25m
2 stops
BOS5:00 pmBoston Logan Intl
$644
Iberia
Apr 22
BOS10:50 pmBoston Logan Intl
28h 00m
1 stop
CAG8:50 amCagliari Elmas
Apr 26
CAG11:45 pmCagliari Elmas
47h 10m
2 stops
BOS4:55 pmBoston Logan Intl
$701
Iberia
Mar 19
BOS11:40 pmBoston Logan Intl
31h 55m
1 stop
CAG12:35 pmCagliari Elmas
Apr 9
CAG9:35 amCagliari Elmas
17h 30m
1 stop
BOS9:05 pmBoston Logan Intl
$783

momondo 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, momondo users made 832,500 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Boston to Cagliari that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Wed 4/15

10:40 am-10:05 pm

2 stops29h 25m

Cagliari Elmas

Tue 4/21

6:15 pm-2:52 pm

3 stops26h 37m

$531

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Wed 4/15

1:00 pm-10:05 pm

3 stops27h 05m

Cagliari Elmas

Tue 4/21

6:15 pm-2:52 pm

3 stops26h 37m

$540

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Wed 4/15

10:40 am-10:05 pm

2 stops29h 25m

Cagliari Elmas

Tue 4/21

7:50 am-9:27 pm

2 stops19h 37m

$544

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Sun 3/1

6:25 pm-8:40 pm

2 stops20h 15m

Cagliari Elmas

Tue 3/10

6:20 am-7:12 pm

2 stops17h 52m

$546

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Wed 4/29

8:05 pm-5:45 pm

1 stop15h 40m

Cagliari Elmas

Wed 5/13

8:30 pm-3:10 pm

1 stop24h 40m

$561

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Wed 4/22

6:45 pm-8:10 am

2 stops55h 25m

Cagliari Elmas

Sun 4/26

6:35 pm-9:49 am

2 stops45h 14m

$583

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Wed 4/29

5:40 pm-10:35 pm

2 stops22h 55m

Cagliari Elmas

Wed 5/13

1:40 pm-3:35 pm

2 stops31h 55m

$597

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Wed 4/22

6:45 pm-5:45 pm

2 stops41h 00m

Cagliari Elmas

Sun 4/26

7:05 pm-9:49 am

2 stops44h 44m

$605

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Sun 3/1

8:40 pm-11:00 pm

2 stops20h 20m

Cagliari Elmas

Tue 3/10

6:00 am-10:37 pm

3 stops21h 37m

$638

BostonCagliari

BOS - CAG

BOSCAG

Boston Logan Intl

Wed 4/15

10:50 pm-8:50 am

1 stop28h 00m

Cagliari Elmas

Tue 4/21

9:35 am-5:00 pm

2 stops37h 25m

$644

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Boston to Cagliari

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Cagliari?

Vueling, Lufthansa and SWISS are the top three most popular airlines that fly to Cagliari from Boston according to our data. Vueling is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Cagliari. Keep in mind that there are 3 different airlines that fly to Cagliari on a routine basis, so you have a few additional options to choose from.

When to book flights from Boston to Cagliari

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Cagliari according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Cagliari (BOS to CAG) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Cagliari

Fastest flight time

15h 40m

Direct flights

None
The fastest flight from Boston to Cagliari takes 15h 40m
There are no direct flights from Boston to Cagliari. There are no popular flight routes from Boston to Cagliari.
Search flight deals

  • How far is Boston Logan Intl to Cagliari Elmas by plane?

    A flight from Boston Logan Intl to Cagliari Elmas will travel around 4033.5 mi. By plane, this route typically takes 15h 40m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Cagliari Elmas Airport?

    Prices for flights from Boston Logan Intl Airport to Cagliari Elmas Airport refresh daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Cagliari Elmas Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Cagliari Elmas Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Cagliari Elmas Airport.

  • What documentation or ID do you need to fly to Cagliari Elmas Airport?

    The travel and health documents required for your trip to Cagliari Elmas Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cagliari Elmas Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Boston to Cagliari?

Best airlines flying from Boston to Cagliari

Compare and see reviews for airlines that fly from Boston to Cagliari with momondo
Airline
Rating
Free Cancellation
Price
SWISSPriceFrom $531Free CancellationRating
7.6
1,864 reviews
Search SWISS flights
VuelingPriceFrom $588Free CancellationRating
7.1
1,238 reviews
Search Vueling flights
LufthansaPriceFrom $608Free CancellationRating
6.8
7,758 reviews
Search Lufthansa flights

Traveling to a place near Cagliari?

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

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Cagliari?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Cagliari. momondo saves you time and could save you money on your trip.

Can I find flights from Boston to Cagliari with flexible booking policies on momondo?

All flight searches from Boston to Cagliari on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Boston to Cagliari?

momondo provides multiple filters to help you find the best flight to Cagliari from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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Of course. momondo tracks the price of Boston to Cagliari flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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