HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Olbia

$796+ Cheap flights from Illinois to Olbia (OLB)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OLB
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Olbia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Olbia

Best flights from Illinois to Olbia
Discover carefully curated flight deals from Illinois to Olbia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/83:30 pmSTL - OLB
2 stops18h 05mLufthansa
Tue 5/125:30 pmOLB - STL
2 stops26h 55mLufthansa
Deal found 12/25$796
This Cheapflightsfares deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:05 pmORD - OLB
1 stop18h 20mSWISS
Mon 6/88:45 amOLB - ORD
2 stops34h 15mSWISS
Deal found 12/24$1,075
This Priceline deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2310:35 pmORD - OLB
1 stop15h 00mMultiple Airlines
Tue 6/307:35 pmOLB - ORD
1 stop23h 20mMultiple Airlines
Deal found 12/24$1,098
This Cheapflightsfares deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/18:20 pmORD - OLB
2 stops17h 15mSWISS
Mon 6/88:45 amOLB - ORD
2 stops34h 15mSWISS
Deal found 12/24$1,090
This Lufthansa deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/23:35 pmORD - OLB
1 stop12h 40mLufthansa
Mon 6/86:25 pmOLB - ORD
1 stop32h 30mLufthansa
Deal found 12/24$1,097
This Travelocity deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:45 amORD - OLB
2 stops24h 55mMultiple Airlines
Mon 6/88:45 amOLB - ORD
2 stops34h 15mMultiple Airlines
Deal found 12/24$1,135
This Cheapflightsfares deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:05 pmORD - OLB
1 stop13h 50mSWISS
Fri 6/128:40 amOLB - ORD
1 stop14h 15mSWISS
Deal found 12/25$1,110
This KAYAK deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/236:45 pmORD - OLB
2 stops54h 05mSWISS
Tue 6/309:25 pmOLB - ORD
1 stop25h 30mSWISS
Deal found 12/24$1,121

Find flight deals from Illinois to Olbia

Keep the following information in mind while searching for Illinois to Olbia flight deals. Data was last updated December 26, 2025.

Round-trip from

$796
(Cheapflightsfares)
From Illinois to Olbia Costa Smeralda
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Olbia 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, Cheapflights users made 2,558,603 searches. Data last updated December 26, 2025.
Use the filters below to find and compare flights from Illinois to Olbia that are best for you.

Fly from

Illinois

Fly to

Olbia

Route

Depart

Return

Price

St. LouisOlbia

STL - OLB

STLOLB

Lambert-St Louis

Fri 5/8

3:30 pm-4:35 pm

2 stops18h 05m

Olbia Costa Smeralda

Tue 5/12

5:30 pm-1:25 pm

2 stops26h 55m

$796

ChicagoOlbia

ORD - OLB

ORDOLB

Chicago O'Hare Intl

Tue 6/2

7:05 pm-8:25 pm

1 stop18h 20m

Olbia Costa Smeralda

Mon 6/8

8:45 am-12:00 pm

2 stops34h 15m

$1,075

ChicagoOlbia

ORD - OLB

ORDOLB

Chicago O'Hare Intl

Mon 6/1

8:20 pm-8:35 pm

2 stops17h 15m

Olbia Costa Smeralda

Mon 6/8

8:45 am-12:00 pm

2 stops34h 15m

$1,090

ChicagoOlbia

ORD - OLB

ORDOLB

Chicago O'Hare Intl

Tue 6/2

3:35 pm-11:15 am

1 stop12h 40m

Olbia Costa Smeralda

Mon 6/8

6:25 pm-7:55 pm

1 stop32h 30m

$1,097

ChicagoOlbia

ORD - OLB

ORDOLB

Chicago O'Hare Intl

Tue 6/23

10:35 pm-8:35 pm

1 stop15h 00m

Olbia Costa Smeralda

Tue 6/30

7:35 pm-11:55 am

1 stop23h 20m

$1,098

ChicagoOlbia

ORD - OLB

ORDOLB

Chicago O'Hare Intl

Sat 5/30

7:05 pm-3:55 pm

1 stop13h 50m

Olbia Costa Smeralda

Fri 6/12

8:40 am-3:55 pm

1 stop14h 15m

$1,110

ChicagoOlbia

ORD - OLB

ORDOLB

Chicago O'Hare Intl

Tue 6/23

6:45 pm-7:50 am

2 stops54h 05m

Olbia Costa Smeralda

Tue 6/30

9:25 pm-3:55 pm

1 stop25h 30m

$1,121

ChicagoOlbia

ORD - OLB

ORDOLB

Chicago O'Hare Intl

Tue 6/2

8:45 am-4:40 pm

2 stops24h 55m

Olbia Costa Smeralda

Mon 6/8

8:45 am-12:00 pm

2 stops34h 15m

$1,135

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Best time to book a flight from Illinois to Olbia

Have a flexible travel schedule? Discover the best time to fly to Olbia from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Olbia
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Olbia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Olbia from Illinois?

    For a flight from Illinois to Olbia, you will be flying into Costa Smeralda. Olbia Costa Smeralda (OLB) is just 1.9 mi from the center of the city.

  • How long is the flight from Illinois to Olbia?

    There are many flights that can get you from Illinois to Olbia in 18h 05m. Fly via Lufthansa or SWISS to get the fastest option. There are 4973 mi between Illinois and Olbia. This flight may include one or multiple stops.

  • Can I find deals for flights from Illinois to Olbia that include hotel bookings?

    Yes. In addition to deals on Illinois to Olbia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Olbia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Olbia.

  • Can I find deals for business class flights from Illinois to Olbia?

    Yes. Cheapflights offers flight deals from Illinois to Olbia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Olbia?

Book flights to Olbia if you plan to visit one of these locations
Golfo Aranci

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Olbia

See prices for flight routes from nearby airports that may be better suited for you.
Miami to Cagliari flights
John F Kennedy Intl to Olbia flights
John F Kennedy Intl to Cagliari flights
LaGuardia to Cagliari flights
Newark to Cagliari flights
Newark to Olbia flights
Dulles Intl to Olbia flights
LaGuardia to Olbia flights
Boston to Cagliari flights
Denver to Cagliari flights
Boston to Olbia flights
Los Angeles to Olbia flights
Dulles Intl to Cagliari flights
O'Hare Intl to Olbia flights
Seattle to Cagliari flights
John F Kennedy Intl to Alghero flights
Seattle to Olbia flights
Reagan-National to Olbia flights
Reagan-National to Cagliari flights
Newark to Alghero flights
Los Angeles to Cagliari flights
San Francisco to Cagliari flights
Miami to Olbia flights
O'Hare Intl to Cagliari flights
Baltimore to Olbia flights
Baltimore to Alghero flights
Boston to Alghero flights
San Jose to Olbia flights
Denver to Olbia flights
Fort Lauderdale to Alghero flights
Dulles Intl to Alghero flights
Albuquerque to Cagliari flights
Columbus to Cagliari flights
Baltimore to Cagliari flights
Oakland to Olbia flights
Philadelphia to Olbia flights
San Diego to Olbia flights
San Francisco to Olbia flights
St. Louis to Olbia flights
Providence to Olbia flights
Sky Harbor Intl to Cagliari flights
San Francisco to Alghero flights
Burbank to Cagliari flights
Fort Lauderdale to Cagliari flights

Top airline flying from Illinois to Olbia

Discover the top airline that operate flights from Illinois to Olbia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$827Average$1,290FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.