BOS - CAG

$500 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
$777
Typical prices: $873-$1,260
Multiple Airlines
Fri 11/30Fri 12/7
BOS - CAG • 2 stops
Cheapest one-way
$500
Typical prices: $649-$738
Multiple Airlines
Wed 4/4
BOS - CAG • 2 stops
When to travel
February
Cheapest • 26% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Zurich (ZRH)
Cheapest • Avg $854 (round-trip)
Rome Fiumicino (FCO)
Shortest trip • 12h 33m (one-way)
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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

Mon, Nov 30 - Mon, Dec 7
Multiple Airlines Logo
7:50 pm - 6:30 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
16h 40m2 stops Reykjavik Keflavik Intl Rome Fiumicino
Multiple Airlines Logo
6:30 am - 5:50 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
17h 20m2 stops Rome Fiumicino Reykjavik Keflavik Intl
$777Multiple Airlines
Mon, Nov 30 - Mon, Dec 7
Multiple Airlines Logo
10:10 pm - 10:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
18h 35m2 stops Lisbon Humberto Delgado Rome Fiumicino
Multiple Airlines Logo
11:35 pm - 8:30 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
26h 55m3 stops Barcelona-El Prat Lisbon Humberto Delgado Porto
$780Multiple Airlines
Sun, Dec 6 - Sun, Dec 13
Multiple Airlines Logo
6:00 pm - 10:50 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
22h 50m2 stops Lisbon Humberto Delgado Barcelona-El Prat
Multiple Airlines Logo
5:50 pm - 7:55 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
32h 05m2 stops Bologna Guglielmo Marconi Lisbon Humberto Delgado
$789Multiple Airlines
Mon, Nov 30 - Mon, Dec 7
Multiple Airlines Logo
6:45 pm - 6:30 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
17h 45m1 stop Rome Fiumicino
Multiple Airlines Logo
9:40 pm - 2:35 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
22h 55m1 stop Rome Fiumicino
$815Multiple Airlines
Mon, Apr 5 - Tue, Apr 13
Multiple Airlines Logo
5:45 am - 5:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
30h 00m2 stops Toronto Pearson Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:35 pm - 5:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
29h 05m1 stop Munich Franz Josef Strauss
$833Multiple Airlines
Mon, Apr 5 - Tue, Apr 13
Multiple Airlines Logo
11:05 am - 5:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
24h 40m2 stops Toronto Pearson Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:35 pm - 6:57 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
54h 22m2 stops Munich Franz Josef Strauss Montreal Pierre Elliott Trudeau Intl
$836Multiple Airlines
Sun, Nov 29 - Sun, Dec 6
Multiple Airlines Logo
3:30 pm - 12:10 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
14h 40m2 stops Montreal Pierre Elliott Trudeau Intl Rome Fiumicino
Multiple Airlines Logo
7:40 pm - 1:45 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
24h 05m2 stops Rome Fiumicino Frankfurt am Main
$862Multiple Airlines
Mon, Nov 30 - Mon, Dec 7
Multiple Airlines Logo
6:45 pm - 12:10 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
11h 25m1 stop Rome Fiumicino
Multiple Airlines Logo
9:40 pm - 2:20 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
22h 40m2 stops Rome Fiumicino Amsterdam Schiphol
$863Multiple Airlines
Wed, Feb 10 - Fri, Feb 19
Multiple Airlines Logo
5:30 am - 8:50 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
33h 20m2 stops Montreal Pierre Elliott Trudeau Intl Rome Fiumicino
Multiple Airlines Logo
6:00 am - 9:48 amCAG  Cagliari Elmas-BOS Boston Logan Intl
33h 48m2 stops Rome Fiumicino Montreal Pierre Elliott Trudeau Intl
$863Multiple Airlines
Mon, Apr 5 - Tue, Apr 13
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
$864Lufthansa
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 with more confidence.

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

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Boston to Cagliari. It’s 14% cheaper than the average day, while Friday is the most expensive, with prices 22% higher.

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Key details for Boston to Cagliari flights

Low season

December

Cheapest flight

$500
Beat the crowds with an average 87% drop in travelers.
The most popular month to fly with an average 149% increase in travelers.
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

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

    Only Economy Class is available on flights from Boston to Cagliari.

  • How long is a flight from Boston to Cagliari?

    There are currently no nonstop flights available from Boston to Cagliari. Flights with 1 layover take between 12h 33m and 20h 43m in total, depending on the connection.

  • 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.

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

    Round-trip flights from Boston to Cagliari range from $873 to $1,260, with an average of $1,000 over the past 12 months. Anything below $873 counts as a good deal.

  • 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 $777 to $4,247. That means the highest observed fare was about 5x higher than the lowest one.

  • How are flight prices from Boston to Cagliari looking right now?

    One-way fares from Boston to Cagliari are currently lower than usual. Average one-way flight prices are about $529, which is 28% below the typical average for this route.

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

    Cagliari Elmas Airport (CAG) hosts 5 major car rental companies, with daily rates averaging $45 for economy cars. Top options include:

    • GREEN MOTION
    • Galdierirent
    • Felirent
    • Rent Smart 24
    • Goldcar Rental SP

  • 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).

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

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

    • Munich Franz Josef Strauss (MUC) - 24% of one-stop connections
    • Amsterdam Schiphol (AMS) - 19% of one-stop connections
    • Rome Fiumicino (FCO) - 19% of one-stop connections
    • Paris Charles de Gaulle (CDG) - 14% of one-stop connections

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

    Yes. Flexible dates can save you up to 30% on flights from Boston to Cagliari. Sunday is the cheapest departure day at $863 round-trip on average, while Friday is the most expensive at $1,220, a difference of $357.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • 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 33m, compared with 12h 46m via Frankfurt am Main (FRA) and 13h 25m via Zurich (ZRH).

  • 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.

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 are flexible, aim for a Sunday departure and avoid flying on Friday. On this route, Sunday flights average $863, about $357 less than Friday fares (29% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Boston to Cagliari trip for February. Fares historically average $741 round-trip in that month - typically $789 less than the most expensive month, which is October (based on the last 12 months).

More options for your flight from Boston to Cagliari

Complete your trip to Cagliari with a hotel stay or car rental

Car rentals in Cagliari
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