Cheap flights from Illinois to Sardinia from $379

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Sardinia departing on 9/19. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:58 pm - 6:15 pm
STL
-
OLB
16h 17m
2 stops
Multiple Airlines Logo
11:20 am - 11:53 pm
OLB
-
STL
19h 33m
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
Lufthansa Logo
9:16 pm - 5:30 pm
ORD
-
OLB
37h 14m
2 stops
Lufthansa Logo
12:00 pm - 6:15 pm
OLB
-
ORD
13h 15m
1 stop
$1,002Lufthansa
Sat, Aug 29 - Fri, Sep 4
Multiple Airlines Logo
9:16 pm - 5:30 pm
ORD
-
OLB
37h 14m
2 stops
Multiple Airlines Logo
8:40 am - 8:05 pm
OLB
-
ORD
18h 25m
2 stops
$1,006Multiple Airlines
Sat, Aug 29 - Fri, Sep 4
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
$1,048Lufthansa
Mon, Oct 5 - Tue, Oct 13
KLM Logo
11:18 am - 4:25 pm
STL
-
CAG
22h 07m
2 stops
KLM Logo
5:05 pm - 2:48 pm
CAG
-
STL
28h 43m
2 stops
$1,086KLM
Wed, Jul 1 - Tue, Jul 14
British Airways Logo
6:00 am - 6:40 pm
STL
-
OLB
29h 40m
2 stops
British Airways Logo
9:25 pm - 8:26 pm
OLB
-
STL
30h 01m
2 stops
$1,095British Airways
Mon, Aug 17 - Fri, Aug 21
British Airways Logo
6:00 am - 6:40 pm
STL
-
OLB
29h 40m
2 stops
British Airways Logo
9:25 pm - 8:26 pm
OLB
-
STL
30h 01m
2 stops
$1,096British Airways
Mon, Aug 17 - Fri, Aug 21
Delta Logo
7:12 pm - 9:00 am
STL
-
OLB
30h 48m
2 stops
Delta Logo
11:20 am - 11:56 pm
OLB
-
STL
19h 36m
2 stops
$1,169Delta
Tue, Jun 16 - Tue, Jun 30
KLM Logo
6:10 pm - 4:25 pm
STL
-
CAG
15h 15m
2 stops
KLM Logo
5:05 pm - 2:48 pm
CAG
-
STL
28h 43m
2 stops
$1,184KLM
Wed, Jul 1 - Tue, Jul 14

British Airways flights from Illinois to Sardinia

Our best British Airways deals on Illinois to Sardinia flight tickets
British Airways
Aug 17
STL6:00 amLambert-St Louis
29h 40m
2 stops
OLB6:40 pmOlbia Costa Smeralda
Aug 21
OLB9:25 pmOlbia Costa Smeralda
30h 01m
2 stops
STL8:26 pmLambert-St Louis
$1,095
British Airways
Aug 17
STL6:00 amLambert-St Louis
29h 40m
2 stops
OLB6:40 pmOlbia Costa Smeralda
Aug 21
OLB9:25 pmOlbia Costa Smeralda
30h 01m
2 stops
STL8:26 pmLambert-St Louis
$1,096
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
29h 38m
2 stops
STL8:03 pmLambert-St Louis
$1,256

Lufthansa flights from Illinois to Sardinia

Our best Lufthansa deals on Illinois to Sardinia flight tickets
Lufthansa
Aug 29
ORD9:16 pmChicago O'Hare Intl
37h 14m
2 stops
OLB5:30 pmOlbia Costa Smeralda
Sep 4
OLB12:00 pmOlbia Costa Smeralda
13h 15m
1 stop
ORD6:15 pmChicago O'Hare Intl
$1,002
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
$1,048
Lufthansa
Oct 5
STL6:49 pmLambert-St Louis
15h 56m
2 stops
CAG5:45 pmCagliari Elmas
Oct 13
CAG6:35 pmCagliari Elmas
25h 50m
2 stops
STL1:25 pmLambert-St Louis
$1,049

momondo Fare Finder

 
Customize your flight search to find flights from Illinois 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 9, 2026.
Use the filters below to find and compare flights from Illinois to Sardinia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisOlbia

STL - OLB

STLOLB

Lambert-St Louis

Tue 7/21

6:58 pm-6:15 pm

2 stops16h 17m

Olbia Costa Smeralda

Thu 7/30

11:20 am-11:53 pm

2 stops19h 33m

$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

ChicagoOlbia

ORD - OLB

ORDOLB

Chicago O'Hare Intl

Sat 8/29

9:16 pm-5:30 pm

2 stops37h 14m

Olbia Costa Smeralda

Fri 9/4

12:00 pm-6:15 pm

1 stop13h 15m

$1,002

ChicagoOlbia

ORD - OLB

ORDOLB

Chicago O'Hare Intl

Sat 8/29

9:16 pm-5:30 pm

2 stops37h 14m

Olbia Costa Smeralda

Fri 9/4

8:40 am-8:05 pm

2 stops18h 25m

$1,006

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

$1,048

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

Wed 7/1

11:18 am-4:25 pm

2 stops22h 07m

Cagliari Elmas

Tue 7/14

5:05 pm-2:48 pm

2 stops28h 43m

$1,086

St. LouisOlbia

STL - OLB

STLOLB

Lambert-St Louis

Mon 8/17

6:00 am-6:40 pm

2 stops29h 40m

Olbia Costa Smeralda

Fri 8/21

9:25 pm-8:26 pm

2 stops30h 01m

$1,095

St. LouisOlbia

STL - OLB

STLOLB

Lambert-St Louis

Mon 8/17

6:00 am-6:40 pm

2 stops29h 40m

Olbia Costa Smeralda

Fri 8/21

9:25 pm-8:26 pm

2 stops30h 01m

$1,096

St. LouisOlbia

STL - OLB

STLOLB

Lambert-St Louis

Tue 6/16

7:12 pm-9:00 am

2 stops30h 48m

Olbia Costa Smeralda

Tue 6/30

11:20 am-11:56 pm

2 stops19h 36m

$1,169

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

Wed 7/1

6:10 pm-4:25 pm

2 stops15h 15m

Cagliari Elmas

Tue 7/14

5:05 pm-2:48 pm

2 stops28h 43m

$1,184

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sardinia from

How to get the cheapest flight ticket from Illinois 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 Illinois to Sardinia?

British Airways, SWISS, and Lufthansa are the most popular carriers operating from Illinois to Sardinia

Cheap Illinois to Sardinia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Sardinia

Fastest flight time

11h 55m

Direct flights

None
The fastest flight from Illinois to Sardinia takes 11h 55m
There are no direct flights from Illinois to Sardinia. There are no popular flight routes from Illinois to Sardinia.

Frequently asked questions about flying from Illinois to Sardinia

  • When did momondo last update prices for flights from Illinois to Sardinia?

    Prices for flights from Illinois to Sardinia refresh daily.

  • How many operators does momondo search for flights from Illinois to Sardinia?

  • How old do you have to be to fly from Illinois to Sardinia?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Sardinia.

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

    The necessary travel and health documents for your Sardinia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Illinois to Sardinia

Compare and see reviews for airlines that fly from Illinois to Sardinia with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $784Free CancellationRating
6.8
7,984 reviews
Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Sardinia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Sardinia for you.

Can I find flights from Illinois to Sardinia with flexible booking policies on momondo?

Flights from Illinois 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 Illinois to Sardinia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sardinia from Illinois.

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

Yes momondo offers price alerts on flights to Sardinia from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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1 adult
Mon 6/8
Mon 6/15

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