BOS - CAG

$349 Find Cheap Flights from Boston to Cagliari - Compare and Save

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Everything you should know

Cheapest round-trip
$676
Typical prices: $734-$1,158
LEVEL
Thu 9/20Sun 9/30
BOS - CAG • 1 stop
Cheapest one-way
$349
Typical prices: $640-$734
Multiple Airlines
Thu 9/20
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 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

Sun, Sep 20 - Wed, Sep 30
LEVEL Logo
11:35 pm - 8:50 amBOS  Boston Logan Intl-CAG Cagliari Elmas
27h 15m1 stop Barcelona-El Prat
LEVEL Logo
2:00 pm - 9:05 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
13h 05m1 stop Barcelona-El Prat
$676LEVEL
Sun, Sep 20 - Wed, Sep 30
LEVEL Logo
11:35 pm - 8:50 amBOS  Boston Logan Intl-CAG Cagliari Elmas
27h 15m1 stop Barcelona-El Prat
LEVEL Logo
2:00 pm - 9:05 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
13h 05m1 stop Barcelona-El Prat
$682LEVEL
Thu, Sep 10 - Wed, Sep 23
Multiple Airlines Logo
10:55 pm - 9:00 amBOS  Boston Logan Intl-CAG Cagliari Elmas
28h 05m1 stop Barcelona-El Prat
Multiple Airlines Logo
9:30 pm - 9:05 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
29h 35m2 stops Turin Citta Di Torino Barcelona-El Prat
$697Multiple Airlines
Tue, Sep 8 - Mon, Sep 14
SWISS Logo
5:10 pm - 7:40 amBOS  Boston Logan Intl-CAG Cagliari Elmas
32h 30m1 stop Zurich
SWISS Logo
9:05 pm - 7:55 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
28h 50m1 stop Zurich
$865SWISS
Mon, Sep 7 - Mon, Sep 14
SWISS Logo
9:40 pm - 8:25 amBOS  Boston Logan Intl-CAG Cagliari Elmas
28h 45m1 stop Zurich
SWISS Logo
9:05 pm - 7:55 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
28h 50m1 stop Zurich
$865SWISS
Mon, Sep 28 - Tue, Oct 6
SWISS Logo
9:40 pm - 8:25 amBOS  Boston Logan Intl-CAG Cagliari Elmas
28h 45m1 stop Zurich
SWISS Logo
8:55 am - 7:55 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
17h 00m1 stop Zurich
$870SWISS
Mon, Sep 7 - Mon, Sep 14
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
$871Lufthansa
Mon, Sep 7 - Mon, Sep 14
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 - 11:59 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
35h 24m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl
$878Lufthansa
Mon, Sep 21 - Mon, Sep 28
Delta Logo
8:25 pm - 4:25 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
14h 00m1 stop Amsterdam Schiphol
Delta Logo
5:05 pm - 1:19 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
26h 14m1 stop Amsterdam Schiphol
$887Delta
Wed, Sep 23 - Tue, Sep 29
Delta Logo
8:25 pm - 4:25 pmBOS  Boston Logan Intl-CAG Cagliari Elmas
14h 00m1 stop Amsterdam Schiphol
Delta Logo
5:05 pm - 6:30 pmCAG  Cagliari Elmas-BOS Boston Logan Intl
31h 25m1 stop Amsterdam Schiphol
$887Delta
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.

How much is a round-trip flight from Boston to Cagliari?

Round-trip flights from Boston to Cagliari start at $676. Prices are below average for this route right now, with typical round-trip fares ranging from $734 to $1,158. The lowest price found in the past 5 days was $676 on LEVEL.

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

$349
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?

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

  • 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.

  • What are the earliest and latest flights from Boston to Cagliari?

    These are the earliest and latest flight times available from Boston to Cagliari:

    • Earliest: departs at 12:00 am and lands at 12:00 am
    • Latest: departs at 12:00 am and lands at 12:00 am.

    The flight takes about 0h 00m.

  • 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 $676 to $2,155. That means the highest observed fare was about 3x 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 $452, which is 36% below the typical average for this route.

  • 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)