BOS - CAG

$500 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
$825
Typical prices: $863-$1,260
Multiple Airlines
Sat 12/1Wed 12/12
BOS - CAG • 3 stops
Cheapest one-way
$500
Typical prices: $649-$738
Multiple Airlines
Wed 4/4
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
February
Cheapest • 26% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Zurich (ZRH)
Cheapest • Avg $821 (round-trip)
Rome Fiumicino (FCO)
Shortest trip • 12h 33m (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

Tue, Dec 1 - Sat, Dec 12
Multiple Airlines Logo
10:45 pm - 10:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
18h 00m3 stops Porto Lisbon Humberto Delgado Rome Fiumicino
Multiple Airlines Logo
6:30 am - 7:55 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
19h 25m2 stops Rome Fiumicino Lisbon Humberto Delgado
$825Multiple Airlines
Sun, Apr 11 - Sun, Apr 25
Multiple Airlines Logo
5:30 am - 5:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
30h 15m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss
Multiple Airlines Logo
8:00 pm - 2:52 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
24h 52m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl
$836Multiple 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
$839Lufthansa
Tue, Nov 17 - Tue, Dec 15
Multiple Airlines Logo
10:25 am - 12:35 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
20h 10m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
3:20 pm - 2:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
29h 20m2 stops Barcelona-El Prat Lisbon Humberto Delgado
$844Multiple Airlines
Mon, Apr 5 - Tue, Apr 13
Multiple Airlines Logo
3:30 pm - 7:10 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
45h 40m2 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
$850Multiple Airlines
Mon, Apr 5 - Tue, Apr 13
Multiple Airlines Logo
6:35 pm - 7:10 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
42h 35m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main
Multiple Airlines Logo
6:35 pm - 11:54 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
35h 19m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl
$860Multiple Airlines
Tue, Nov 17 - Tue, Dec 15
Multiple Airlines Logo
5:45 am - 12:35 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
24h 50m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
3:20 pm - 2:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
29h 20m2 stops Barcelona-El Prat Lisbon Humberto Delgado
$866Multiple Airlines
Tue, Dec 1 - Sat, Dec 12
Multiple Airlines Logo
6:00 pm - 10:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
22h 45m2 stops Lisbon Humberto Delgado Rome Fiumicino
Multiple Airlines Logo
6:30 am - 7:55 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
19h 25m2 stops Rome Fiumicino Lisbon Humberto Delgado
$871Multiple Airlines
Sun, Feb 14 - Sun, Feb 21
Multiple Airlines Logo
7:50 pm - 10:50 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
21h 00m3 stops Reykjavik Keflavik Intl Dublin Barcelona-El Prat
Multiple Airlines Logo
1:35 pm - 3:05 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
31h 30m3 stops Milan Malpensa Barcelona-El Prat Lisbon Humberto Delgado
$872Multiple Airlines
Sun, Apr 11 - Sun, Apr 25
Multiple Airlines Logo
5:30 am - 5:45 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
30h 15m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss
Multiple Airlines Logo
8:00 pm - 3:40 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
25h 40m1 stop Frankfurt am Main
$873Multiple 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 14% cheaper than the average day, while Friday is the most expensive, with prices 22% higher.

What’s the cheapest month to fly from Boston to Cagliari?

•February is the cheapest month to fly from Boston to Cagliari at $741 round-trip.
•October ($1,530) and November ($1,443) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 106% 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

October

Cheapest flight

$500
Beat the crowds with an average 75% drop in travelers.
The most popular month to fly with an average 157% 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?

    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 $863 to $1,260, with an average of $995 over the past 12 months. Anything below $863 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 $825 to $4,385. 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 $522, which is 29% 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
    • Rent Smart 24
    • Felirent
    • SURPRICE CAR RENTAL

  • 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) - 18% of one-stop connections
    • Rome Fiumicino (FCO) - 18% of one-stop connections
    • Zurich (ZRH) - 16% 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 14h 09m via Paris Charles de Gaulle (CDG).

  • What is the time difference between Boston and Cagliari?

    Cagliari is 5 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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