Cheap flights from St. Louis to Sardinia from $509

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Sardinia departing on 7/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:58 pm - 6:15 pm
STL
-
OLB
19h 17m
2 stops
Multiple Airlines Logo
11:20 am - 10:15 pm
OLB
-
STL
17h 55m
2 stops
$876Multiple Airlines
Tue, Jul 21 - Thu, Jul 30
Multiple Airlines Logo
5:13 pm - 7:20 pm
STL
-
OLB
19h 07m
2 stops
Multiple Airlines Logo
10:05 am - 9:09 am
OLB
-
STL
30h 04m
2 stops
$887Multiple Airlines
Tue, Jul 21 - Thu, Jul 30
Multiple Airlines Logo
9:35 pm - 8:35 pm
STL
-
OLB
16h 00m
1 stop
Multiple Airlines Logo
10:05 am - 9:09 am
OLB
-
STL
30h 04m
2 stops
$1,044Multiple Airlines
Tue, Jul 21 - Thu, Jul 30
Lufthansa Logo
6:49 pm - 5:45 pm
STL
-
CAG
15h 56m
2 stops
Lufthansa Logo
6:35 pm - 3:38 pm
CAG
-
STL
28h 03m
2 stops
$1,047Lufthansa
Mon, Oct 5 - Tue, Oct 13
Lufthansa Logo
12:55 pm - 4:35 pm
STL
-
OLB
20h 40m
2 stops
Lufthansa Logo
6:25 pm - 1:25 pm
OLB
-
STL
26h 00m
1 stop
$1,182Lufthansa
Mon, Jun 1 - Mon, Jun 8
British Airways Logo
8:06 pm - 7:20 pm
STL
-
OLB
40h 14m
2 stops
British Airways Logo
9:25 pm - 8:03 pm
OLB
-
STL
29h 38m
2 stops
$1,262British Airways
Fri, Sep 4 - Fri, Sep 18
British Airways Logo
8:02 pm - 7:20 pm
STL
-
OLB
40h 18m
2 stops
British Airways Logo
9:25 pm - 11:20 pm
OLB
-
STL
32h 55m
2 stops
$1,275British Airways
Fri, Sep 4 - Fri, Sep 18
Delta Logo
5:36 pm - 4:25 pm
STL
-
CAG
15h 49m
2 stops
Delta Logo
12:30 pm - 11:53 pm
CAG
-
STL
18h 23m
2 stops
$1,297Delta
Wed, Jul 1 - Tue, Jul 14
Iberia Logo
5:11 pm - 6:50 pm
STL
-
CAG
18h 39m
2 stops
Iberia Logo
9:50 am - 7:30 pm
CAG
-
STL
16h 40m
2 stops
$1,559Iberia
Mon, Aug 17 - Fri, Aug 21
Iberia Logo
5:11 pm - 6:50 pm
STL
-
CAG
18h 39m
2 stops
Iberia Logo
9:50 am - 7:30 pm
CAG
-
STL
16h 40m
2 stops
$1,941Iberia
Mon, Aug 17 - Fri, Aug 21

British Airways flights from St. Louis to Sardinia

Our best British Airways deals on St. Louis to Sardinia flight tickets
British Airways
Sep 4
STL8:06 pmLambert-St Louis
40h 14m
2 stops
OLB7:20 pmOlbia Costa Smeralda
Sep 18
OLB9:25 pmOlbia Costa Smeralda
29h 38m
2 stops
STL8:03 pmLambert-St Louis
$1,262
British Airways
Sep 4
STL8:02 pmLambert-St Louis
40h 18m
2 stops
OLB7:20 pmOlbia Costa Smeralda
Sep 18
OLB9:25 pmOlbia Costa Smeralda
32h 55m
2 stops
STL11:20 pmLambert-St Louis
$1,275

Lufthansa flights from St. Louis to Sardinia

Our best Lufthansa deals on St. Louis to Sardinia flight tickets
Lufthansa
Oct 5
STL6:49 pmLambert-St Louis
15h 56m
2 stops
CAG5:45 pmCagliari Elmas
Oct 13
CAG6:35 pmCagliari Elmas
28h 03m
2 stops
STL3:38 pmLambert-St Louis
$1,047
Lufthansa
Jun 1
STL12:55 pmLambert-St Louis
20h 40m
2 stops
OLB4:35 pmOlbia Costa Smeralda
Jun 8
OLB6:25 pmOlbia Costa Smeralda
26h 00m
1 stop
STL1:25 pmLambert-St Louis
$1,182
Lufthansa
Jun 1
STL12:55 pmLambert-St Louis
20h 40m
2 stops
OLB4:35 pmOlbia Costa Smeralda
Jun 8
OLB12:00 pmOlbia Costa Smeralda
16h 21m
2 stops
STL9:21 pmLambert-St Louis
$1,235

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Sardinia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 4, 2026.
Use the filters below to find and compare flights from St. Louis to Sardinia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisOlbia

STL - OLB

STLOLB

Lambert-St Louis

Tue 7/21

3:58 pm-6:15 pm

2 stops19h 17m

Olbia Costa Smeralda

Thu 7/30

11:20 am-10:15 pm

2 stops17h 55m

$876

St. LouisOlbia

STL - OLB

STLOLB

Lambert-St Louis

Tue 7/21

5:13 pm-7:20 pm

2 stops19h 07m

Olbia Costa Smeralda

Thu 7/30

10:05 am-9:09 am

2 stops30h 04m

$887

St. LouisOlbia

STL - OLB

STLOLB

Lambert-St Louis

Tue 7/21

9:35 pm-8:35 pm

1 stop16h 00m

Olbia Costa Smeralda

Thu 7/30

10:05 am-9:09 am

2 stops30h 04m

$1,044

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

Mon 10/5

6:49 pm-5:45 pm

2 stops15h 56m

Cagliari Elmas

Tue 10/13

6:35 pm-3:38 pm

2 stops28h 03m

$1,047

St. LouisOlbia

STL - OLB

STLOLB

Lambert-St Louis

Mon 6/1

12:55 pm-4:35 pm

2 stops20h 40m

Olbia Costa Smeralda

Mon 6/8

6:25 pm-1:25 pm

1 stop26h 00m

$1,182

St. LouisOlbia

STL - OLB

STLOLB

Lambert-St Louis

Fri 9/4

8:06 pm-7:20 pm

2 stops40h 14m

Olbia Costa Smeralda

Fri 9/18

9:25 pm-8:03 pm

2 stops29h 38m

$1,262

St. LouisOlbia

STL - OLB

STLOLB

Lambert-St Louis

Fri 9/4

8:02 pm-7:20 pm

2 stops40h 18m

Olbia Costa Smeralda

Fri 9/18

9:25 pm-11:20 pm

2 stops32h 55m

$1,275
Quickest round-trip

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

Wed 7/1

5:36 pm-4:25 pm

2 stops15h 49m

Cagliari Elmas

Tue 7/14

12:30 pm-11:53 pm

2 stops18h 23m

$1,297

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

Mon 8/17

5:11 pm-6:50 pm

2 stops18h 39m

Cagliari Elmas

Fri 8/21

9:50 am-7:30 pm

2 stops16h 40m

$1,559

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

Mon 8/17

5:11 pm-6:50 pm

2 stops18h 39m

Cagliari Elmas

Fri 8/21

9:50 am-7:30 pm

2 stops16h 40m

$1,941

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Sardinia from

How to get the cheapest flight ticket from St. Louis to Sardinia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Lambert-St Louis to Sardinia?

Air Canada is the most popular carrier operating from Lambert-St Louis to Sardinia

Cheap St. Louis to Sardinia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Sardinia

Fastest flight time

15h 15m

Direct flights

None
The fastest flight from St. Louis to Sardinia takes 15h 15m
There are no direct flights from St. Louis to Sardinia. There are no popular flight routes from St. Louis to Sardinia.

Frequently asked questions about flying from St. Louis to Sardinia

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Sardinia?

    Prices for flights from Lambert-St Louis Airport to Sardinia refresh daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Sardinia?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Sardinia.

  • What documentation or ID do you need to fly to Sardinia?

    The travel and health documents you'll need for your trip to Sardinia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sardinia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Sardinia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Sardinia. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Sardinia with flexible booking policies on momondo?

Flights from St. Louis to Sardinia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Sardinia?

momondo helps you find the best flight between St. Louis and Sardinia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to Sardinia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Sardinia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sardinia and let you know when they change.

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1 adult
Wed 6/3
Wed 6/10

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