BOS - CAG

$363 Find Cheap Flights from Boston to Cagliari - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$632
Typical prices: $734-$1,158
Multiple Airlines
Sat 10/13Sat 10/20
BOS - CAG • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Boston and Cagliari. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
September
Cheapest • 31% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Madrid Barajas (MAD)
Cheapest • Avg $475 (round-trip)
Rome Fiumicino (FCO)
Shortest trip • 12h 08m (one-way)
Insights
Insights
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Booking Insights
Flight Deals

Cheap Flights from Boston to Cagliari (BOS-CAG)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Cagliari

Tue, Oct 13 - Tue, Oct 20
Multiple Airlines Logo
9:20 pm - 2:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
11h 25m1 stop Madrid Barajas
Multiple Airlines Logo
3:50 pm - 9:05 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
35h 15m2 stops Palma de Mallorca Son Sant Joan Barcelona-El Prat
$632Multiple Airlines
Thu, Sep 17 - Wed, Sep 30
LEVEL Logo
10:55 pm - 8:50 amBOS  Boston Logan Intl-CAG Cagliari Elmas
27h 55m1 stop Barcelona-El Prat
LEVEL Logo
2:00 pm - 9:05 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
13h 05m1 stop Barcelona-El Prat
$668LEVEL
Tue, Oct 13 - Wed, Oct 21
Multiple Airlines Logo
5:40 pm - 2:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
15h 05m1 stop Madrid Barajas
Multiple Airlines Logo
6:10 am - 9:05 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
20h 55m2 stops Palermo Punta Raisi Barcelona-El Prat
$668Multiple Airlines
Thu, Sep 17 - Wed, Sep 30
Multiple Airlines Logo
10:55 pm - 8:50 amBOS  Boston Logan Intl-CAG Cagliari Elmas
27h 55m1 stop Barcelona-El Prat
Multiple Airlines Logo
7:50 am - 9:05 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
19h 15m2 stops Bergamo Orio Al Serio Barcelona-El Prat
$670Multiple Airlines
Tue, Oct 13 - Wed, Oct 21
Multiple Airlines Logo
8:50 pm - 8:50 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
18h 00m2 stops Reykjavik Keflavik Intl Rome Fiumicino
Multiple Airlines Logo
1:00 pm - 6:50 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
35h 50m2 stops Rome Fiumicino Reykjavik Keflavik Intl
$761Multiple Airlines
Tue, Oct 13 - Wed, Oct 21
Lufthansa Logo
8:05 pm - 5:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
15h 40m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:35 pm - 5:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
29h 05m1 stop Munich Franz Josef Strauss
$842Lufthansa
Thu, Oct 1 - Mon, Oct 5
Lufthansa Logo
9:30 am - 5:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
26h 15m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss
Lufthansa Logo
6:35 pm - 3:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
27h 05m2 stops Munich Franz Josef Strauss Frankfurt am Main
$955Lufthansa
Fri, Oct 2 - Mon, Oct 5
Lufthansa Logo
5:45 pm - 5:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
18h 00m2 stops Frankfurt am Main Munich Franz Josef Strauss
Lufthansa Logo
6:35 pm - 5:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
29h 05m1 stop Munich Franz Josef Strauss
$973Lufthansa
Fri, Oct 2 - Sun, Oct 4
Lufthansa Logo
8:05 pm - 5:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
15h 40m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:35 pm - 5:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
29h 05m1 stop Munich Franz Josef Strauss
$985Lufthansa
Fri, Oct 2 - Tue, Oct 6
Delta Logo
9:20 pm - 6:00 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
14h 40m2 stops New York John F Kennedy Intl Paris Charles de Gaulle
Delta Logo
5:05 pm - 7:05 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
32h 00m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$1,107Delta
Booking Insights

Price, demand and travel trends for Boston to Cagliari flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Boston to Cagliari with more confidence.

What's the cheapest day of the week to fly from Boston to Cagliari?

Sunday is the cheapest day of the week to fly from Boston to Cagliari, it is 11% cheaper than the average day. Thursday is the most expensive day with flight prices 20% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Boston to Cagliari?

  • September is the cheapest month to fly from Boston to Cagliari at $660 round-trip.
  • December ($1,482) and November ($1,443) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 124% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Boston to Cagliari flights

Low season

December

Cheapest flight

$632
Best time to beat the crowds but there is an average 56% increase in price.
Most popular time to fly with an average 20% increase in price.
Flight from Boston to Cagliari

When to book flights from Boston to Cagliari

Are your dates flexible? Find out the best times to travel from Boston to Cagliari based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Boston to Cagliari flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Boston to Cagliari?

    Flights from Boston to Cagliari usually depart from Boston Logan Intl (BOS) and arrive at Cagliari Elmas (CAG).

  • What cabin classes can I book on flights from Boston to Cagliari?

    Three cabin classes are available on flights from Boston to Cagliari:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • Which airports do connecting flights from Boston to Cagliari pass through?

    One-stop flights from Boston to Cagliari most commonly connect through:

    • Zurich (ZRH) - 21% of one-stop connections
    • Frankfurt am Main (FRA) - 19% of one-stop connections
    • Munich Franz Josef Strauss (MUC) - 19% of one-stop connections
    • Amsterdam Schiphol (AMS) - 13% of one-stop connections

    Zurich (ZRH) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Boston to Cagliari?

    On the Boston to Cagliari route, being flexible with your departure day can save you up to 26%. Sunday is the cheapest day at $851 round-trip on average, while Thursday is the most expensive at $1,143: a $292 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How long is a flight from Boston to Cagliari?

    A nonstop flight from Boston to Cagliari takes 0h 00m, covering 4,027 miles.

  • Do I need a passport to fly from Boston to Cagliari?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Boston to Cagliari changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $632 to $4,833. That means the highest observed fare was about 8x higher than the lowest one.

  • How much time can I save by choosing a different layover airport from Boston to Cagliari?

    Flying via Rome Fiumicino (FCO) gives the shortest average 1-stop total travel time at 12h 08m, compared with 13h 19m via Madrid Barajas (MAD) and 14h 09m via Paris Charles de Gaulle (CDG).

  • What is the time difference between Boston and Cagliari?

    Cagliari is 6 hours ahead of Boston (Central European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Cagliari Elmas Airport (CAG)?

    Cagliari Elmas Airport (CAG) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:
    · SURPRICE CAR RENTAL
    · Felirent
    · Galdierirent
    · Rent Smart 24
    · Record go

  • How much should I expect to pay for a Boston to Cagliari flight?

    Round-trip flights from Boston to Cagliari range from $734 to $1,158, with an average of $951 over the past 12 months. Anything below $734 counts as a good deal.

Your guide to booking Boston to Cagliari flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Sunday departure instead of Thursday. On this route, Sunday flights average $851 - about $292 less than Thursday (26% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Boston to Cagliari trip for September. Fares historically average $660 round-trip in that month - typically $822 less than the most expensive month, which is December (based on the last 12 months).

Everything you need to know for your flight from Boston to Cagliari

Information on your arrival and departure airports

Boston (BOS)
Cagliari (CAG)