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BOS - CAG

$291 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
$786
Typical prices: $734-$1,158
Air Canada, Lufthansa
Sun 10/14Sun 10/21
BOS - CAG • 2 stops
Cheapest one-way
$291
Typical prices: $640-$734
Multiple Airlines
Thu 11/15
BOS - CAG • 3 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 (one-way)
Insights
Insights
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We hope you love your trip to Cagliari!
Flight Deals
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

Wed, Oct 14 - Wed, Oct 21
Multiple Airlines Logo
5:50 am - 6:10 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
30h 20m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main
Multiple Airlines Logo
6:35 pm - 5:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
29h 05m1 stop Munich Franz Josef Strauss
$786Multiple Airlines
Sat, Nov 14 - Sat, Nov 21
Multiple Airlines Logo
7:50 pm - 4:40 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
14h 50m2 stops Reykjavik Keflavik Intl Rome Fiumicino
Multiple Airlines Logo
7:00 am - 5:50 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
16h 50m2 stops Rome Fiumicino Reykjavik Keflavik Intl
$792Multiple Airlines
Wed, Oct 14 - 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
$809Lufthansa
Wed, Oct 14 - Wed, Oct 21
Multiple Airlines Logo
5:50 am - 6:10 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
30h 20m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main
Multiple Airlines Logo
6:35 pm - 3:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
27h 05m2 stops Munich Franz Josef Strauss Frankfurt am Main
$817Multiple Airlines
Sat, Nov 14 - Sat, Nov 21
Multiple Airlines Logo
3:30 pm - 5:10 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
19h 40m2 stops Montreal Pierre Elliott Trudeau Intl Milan Malpensa
Multiple Airlines Logo
1:30 pm - 2:00 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
30h 30m3 stops Venice Marco Polo Barcelona-El Prat Lisbon Humberto Delgado
$858Multiple Airlines
Fri, Feb 5 - Sat, Feb 13
Multiple Airlines Logo
7:50 pm - 10:50 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
21h 00m3 stops Reykjavik Keflavik Intl Dublin Milan Malpensa
Multiple Airlines Logo
11:30 pm - 7:55 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
26h 25m3 stops Milan Malpensa Madrid Barajas Lisbon Humberto Delgado
$878Multiple Airlines
Sat, Nov 14 - Sat, Nov 21
Multiple Airlines Logo
9:35 am - 4:55 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
25h 20m3 stops Toronto Island Montreal Pierre Elliott Trudeau Intl Milan Malpensa
Multiple Airlines Logo
10:30 pm - 7:55 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
27h 25m3 stops Venice Marco Polo Madrid Barajas Lisbon Humberto Delgado
$881Multiple Airlines
Fri, Feb 5 - Sat, Feb 13
Multiple Airlines Logo
6:00 pm - 10:50 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
22h 50m2 stops Lisbon Humberto Delgado Milan Malpensa
Multiple Airlines Logo
11:30 pm - 7:55 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
26h 25m3 stops Milan Malpensa Madrid Barajas Lisbon Humberto Delgado
$890Multiple Airlines
Fri, Feb 5 - Sat, Feb 13
Multiple Airlines Logo
6:00 pm - 10:50 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
22h 50m2 stops Lisbon Humberto Delgado Milan Malpensa
Multiple Airlines Logo
11:30 pm - 7:55 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
26h 25m2 stops Milan Malpensa Lisbon Humberto Delgado
$906Multiple Airlines
Thu, Dec 3 - Tue, Dec 8
Multiple Airlines Logo
10:25 am - 4:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
24h 20m2 stops Montreal Pierre Elliott Trudeau Intl Milan Malpensa
Multiple Airlines Logo
9:15 am - 2:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
35h 25m2 stops Milan Malpensa Lisbon Humberto Delgado
$912Multiple Airlines
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 11% cheaper than the average day, while Thursday is the most expensive, with prices 20% higher.

What’s 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.

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Key details for Boston to Cagliari flights

Low season

December

Cheapest flight

$291
Beat the crowds with an average 88% drop in travelers.
The most popular month to fly with an average 17% 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?

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

    • Economy Class
    • Premium Economy Class

  • How long is a flight from Boston to Cagliari?

    A nonstop flight from Boston to Cagliari takes 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.

  • 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.

  • 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 $792 to $3,043. That means the highest observed fare was about 4x 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 $453, which is 35% 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 starting from around $4 for economy cars. Top options include:

    • SURPRICE CAR RENTAL
    • Felirent
    • Galdierirent
    • Rent Smart 24
    • Record go

  • 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:

    • 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

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

    Yes. Flexible dates can save you up to 26% on flights from Boston to Cagliari. Sunday is the cheapest departure day at $851 round-trip on average, while Thursday is the most expensive at $1,143, a difference of $292.

    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, 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.

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 Thursday. On this route, Sunday flights average $851, about $292 less than Thursday fares (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

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

Car rentals in Cagliari
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