BOS - CAG

$819 Find Cheap Flights from Boston to Cagliari - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$819
Typical prices: $734-$1,158
Multiple Airlines
Tue 10/23Mon 10/29
BOS - CAG • 2 stops
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 00m (one-way)
Insights
Insights
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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

Fri, Oct 23 - Thu, Oct 29
Multiple Airlines Logo
6:05 pm - 10:50 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
22h 45m2 stops Lisbon Humberto Delgado Milan Malpensa
Multiple Airlines Logo
6:30 pm - 3:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
26h 10m2 stops Milan Malpensa Lisbon Humberto Delgado
$819Multiple Airlines
Sun, Oct 25 - Thu, Nov 5
Multiple Airlines Logo
6:20 pm - 6:50 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
19h 30m2 stops Rome Fiumicino Milan Linate
Multiple Airlines Logo
4:10 pm - 1:45 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
27h 35m2 stops Milan Linate Rome Fiumicino
$830Multiple Airlines
Thu, Dec 3 - Thu, Dec 10
Iberia Logo
8:00 pm - 1:05 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
35h 05m2 stops Madrid Barajas Barcelona-El Prat
Iberia Logo
1:20 pm - 7:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
36h 20m2 stops Barcelona-El Prat London Heathrow
$841Iberia
Tue, Oct 20 - Tue, Oct 27
Multiple Airlines Logo
9:20 pm - 2:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
11h 25m1 stop Madrid Barajas
Multiple Airlines Logo
9:15 am - 6:50 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
38h 35m2 stops Milan Malpensa Reykjavik Keflavik Intl
$865Multiple Airlines
Fri, Oct 23 - Fri, Oct 30
Multiple Airlines Logo
10:35 am - 6:55 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
26h 20m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
10:05 am - 9:20 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
16h 15m2 stops Barcelona-El Prat Zurich
$872Multiple Airlines
Sun, Oct 11 - Sat, Nov 14
Multiple Airlines Logo
10:50 am - 5:05 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
24h 15m2 stops Toronto Pearson Intl Frankfurt am Main
Multiple Airlines Logo
5:45 pm - 8:20 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
32h 35m1 stop Zurich
$875Multiple Airlines
Sun, Oct 11 - Sat, Nov 14
Multiple Airlines Logo
10:50 am - 5:05 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
24h 15m2 stops Toronto Pearson Intl Frankfurt am Main
Multiple Airlines Logo
5:45 pm - 8:20 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
32h 35m1 stop Zurich
$876Multiple Airlines
Thu, Oct 1 - Mon, Oct 5
Lufthansa Logo
2:15 pm - 5:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
21h 30m2 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
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
Thu, Sep 17 - Sat, Oct 3
Lufthansa Logo
10:00 pm - 6:15 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
14h 15m1 stop Frankfurt am Main
Lufthansa Logo
9:10 am - 5:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
14h 30m2 stops Frankfurt am Main Munich Franz Josef Strauss
$1,113Lufthansa
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

$819
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) - 20% of one-stop connections
    • Frankfurt am Main (FRA) - 18% of one-stop connections
    • Munich Franz Josef Strauss (MUC) - 18% of one-stop connections
    • Rome Fiumicino (FCO) - 14% 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 $819 to $4,930. That means the highest observed fare was about 6x 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 00m, 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).

More options for your flight from Boston to Cagliari

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