STL - CAG

$927 Find Cheap Flights from St. Louis to Cagliari - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$927
Typical prices: $903-$1,171
Lufthansa
Fri 10/5Sat 10/13
STL - CAG • 2 stops
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Cagliari (STL-CAG)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Cagliari

Mon, Oct 5 - Tue, Oct 13
Lufthansa Logo
1:29 pm - 5:45 pmSTL  Lambert-St Louis-CAG Cagliari Elmas
21h 16m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
6:35 pm - 9:21 pmCAG  Cagliari Elmas-STL Lambert-St Louis
33h 46m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl
$927Lufthansa
Mon, Oct 5 - Tue, Oct 13
Lufthansa Logo
1:29 pm - 5:45 pmSTL  Lambert-St Louis-CAG Cagliari Elmas
21h 16m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
6:35 pm - 9:21 pmCAG  Cagliari Elmas-STL Lambert-St Louis
33h 46m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl
$928Lufthansa
Mon, Oct 5 - Tue, Oct 13
Lufthansa Logo
3:30 pm - 5:45 pmSTL  Lambert-St Louis-CAG Cagliari Elmas
19h 15m2 stops Frankfurt am Main Munich Franz Josef Strauss
Lufthansa Logo
6:35 pm - 3:43 pmCAG  Cagliari Elmas-STL Lambert-St Louis
28h 08m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl
$959Lufthansa
Mon, Oct 5 - Tue, Oct 13
Multiple Airlines Logo
7:10 pm - 10:35 pmSTL  Lambert-St Louis-CAG Cagliari Elmas
68h 25m3 stops Dallas/Fort Worth Boston Logan Intl Barcelona-El Prat
Multiple Airlines Logo
9:35 am - 9:29 amCAG  Cagliari Elmas-STL Lambert-St Louis
30h 54m3 stops Barcelona-El Prat London Heathrow Boston Logan Intl
$2,918Multiple Airlines
Mon, Oct 5 - Tue, Oct 13
Multiple Airlines Logo
7:10 pm - 10:35 pmSTL  Lambert-St Louis-CAG Cagliari Elmas
68h 25m3 stops Dallas/Fort Worth Boston Logan Intl Barcelona-El Prat
Multiple Airlines Logo
9:35 am - 9:29 amCAG  Cagliari Elmas-STL Lambert-St Louis
30h 54m3 stops Barcelona-El Prat London Heathrow Boston Logan Intl
$3,174Multiple Airlines
Mon, Oct 5 - Tue, Oct 13
Multiple Airlines Logo
7:10 pm - 10:35 pmSTL  Lambert-St Louis-CAG Cagliari Elmas
68h 25m3 stops Dallas/Fort Worth Boston Logan Intl Barcelona-El Prat
Multiple Airlines Logo
9:35 am - 9:29 amCAG  Cagliari Elmas-STL Lambert-St Louis
30h 54m3 stops Barcelona-El Prat London Heathrow Boston Logan Intl
$3,421Multiple Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Cagliari flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from St. Louis to Cagliari?

Round-trip flights from St. Louis to Cagliari typically range from $903 to $1,171. The lowest price found in the past 5 days was $927, on Lufthansa.

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Key details for St. Louis to Cagliari flights

Cheapest flight

$927
Round-trip flight from St. Louis to Cagliari

When to book flights from St. Louis to Cagliari

Are your dates flexible? Find out the best times to travel from St. Louis 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 St. Louis to Cagliari flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Do I need a passport to fly from St. Louis 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 St. Louis 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 $927 to $3,421. That means the highest observed fare was about 4x higher than the lowest one.

  • 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 St. Louis to Cagliari?

    Flights from St. Louis to Cagliari usually depart from Lambert-St Louis (STL) and arrive at Cagliari Elmas (CAG).

  • Can I save money by using flexible dates for flights from St. Louis to Cagliari?

    Yes. Flexible dates can save you up to 23% on flights from St. Louis to Cagliari. Monday is the cheapest departure day at $903 round-trip on average, while Saturday is the most expensive at $1,171, a difference of $268.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between St. Louis and Cagliari?

    Cagliari is 7 hours ahead of St. Louis (Central European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking St. Louis 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 Monday departure and avoid flying on Saturday. On this route, Monday flights average $903, about $268 less than Saturday fares (23% savings) based on the last 12 months.

More options for your flight from St. Louis to Cagliari

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

Car rentals in Cagliari
Hotels in Cagliari