How long does it take to fly to Trieste?

Average flight duration from Illinois to Trieste depends on which airport you fly into and out of. Flying from Chicago to Venice Marco Polo Airport is 15h 12m on average, while flying from Moline to Venice Marco Polo Airport is 15h 14m on average. Venice Marco Polo Airport is the most popular airport in Trieste.

When did momondo last update prices for flights from Illinois to Trieste Ronchi dei Legionari Airport?

Prices for flights from Illinois to Trieste Ronchi dei Legionari Airport are updated daily.

How old do you have to be to fly from Illinois to Trieste Ronchi dei Legionari Airport?

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 Trieste Ronchi dei Legionari Airport.

What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?

The required travel and health documents for your Trieste Ronchi dei Legionari Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Trieste Ronchi dei Legionari Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$807 Cheap Flights from Illinois to Trieste in 2026/27

Find the cheapest flights from Illinois to Trieste

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:10 pm - 6:30 pmORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

15h 20m2 stops Lisbon Humberto Delgado Rome Fiumicino

11:15 am - 3:30 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

35h 15m2 stops Rome Fiumicino Lisbon Humberto Delgado

$807Multiple Airlines

Sun, Nov 15 - Tue, Nov 24

8:10 pm - 10:25 amORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

31h 15m2 stops Lisbon Humberto Delgado Rome Fiumicino

7:15 pm - 3:30 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

51h 15m2 stops Rome Fiumicino Lisbon Humberto Delgado

$823Multiple Airlines

Sun, Nov 15 - Mon, Nov 23

8:10 pm - 2:30 pmORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

35h 20m3 stops Lisbon Humberto Delgado Madrid Barajas Rome Fiumicino

11:15 am - 3:30 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

35h 15m3 stops Rome Fiumicino Madrid Barajas Lisbon Humberto Delgado

$864Multiple Airlines

Sun, Nov 15 - Tue, Nov 24

8:10 pm - 10:25 amORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

31h 15m2 stops Lisbon Humberto Delgado Rome Fiumicino

11:15 am - 3:30 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

35h 15m3 stops Rome Fiumicino Madrid Barajas Lisbon Humberto Delgado

$904Multiple Airlines

Sun, Nov 15 - Tue, Nov 24

7:05 am - 10:55 pmORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

32h 50m3 stops Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle Rome Fiumicino

3:15 pm - 1:10 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

28h 55m3 stops Rome Fiumicino Paris Charles de Gaulle Frankfurt am Main

$996Multiple Airlines

Sun, Nov 15 - Mon, Nov 23

3:40 pm - 2:30 pmORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

15h 50m1 stop Rome Fiumicino

3:15 pm - 1:10 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

28h 55m2 stops Rome Fiumicino Frankfurt am Main

$1,022Multiple Airlines

Sun, Nov 15 - Mon, Nov 23

3:40 pm - 6:30 pmORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

19h 50m1 stop Rome Fiumicino

6:35 am - 3:20 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

15h 45m2 stops Rome Fiumicino Frankfurt am Main

$1,022Multiple Airlines

Sun, Nov 15 - Tue, Nov 24

3:40 pm - 10:55 pmORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

24h 15m1 stop Rome Fiumicino

3:15 pm - 1:10 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

28h 55m1 stop Rome Fiumicino

$1,030Multiple Airlines

Sun, Nov 15 - Tue, Nov 24

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United Airlines flights from Illinois to Trieste

Our best United Airlines deals on Illinois to Trieste flight tickets

United Airlines

Mar 1

ORD3:40 pmChicago O'Hare Intl

11h 45m

1 stop

TRS10:25 amTrieste Ronchi dei Legionari

Mar 5

TRS6:35 amTrieste Ronchi dei Legionari

13h 35m

1 stop

ORD1:10 pmChicago O'Hare Intl

$1,045

United Airlines

Mar 1

ORD10:33 amChicago O'Hare Intl

16h 52m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Mar 5

TRS6:35 amTrieste Ronchi dei Legionari

13h 35m

1 stop

ORD1:10 pmChicago O'Hare Intl

$1,050

United Airlines

Mar 1

ORD11:40 amChicago O'Hare Intl

15h 45m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Mar 5

TRS6:35 amTrieste Ronchi dei Legionari

22h 20m

2 stops

ORD9:55 pmChicago O'Hare Intl

$1,060

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sun 11/15

8:10 pm-6:30 pm

2 stops15h 20m

Trieste Ronchi dei Legionari

Tue 11/24

11:15 am-3:30 pm

2 stops35h 15m

$807

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sun 11/15

8:10 pm-10:25 am

2 stops31h 15m

Trieste Ronchi dei Legionari

Mon 11/23

7:15 pm-3:30 pm

2 stops51h 15m

$823

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sun 11/15

8:10 pm-2:30 pm

3 stops35h 20m

Trieste Ronchi dei Legionari

Tue 11/24

11:15 am-3:30 pm

3 stops35h 15m

$864

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sun 11/15

8:10 pm-10:25 am

2 stops31h 15m

Trieste Ronchi dei Legionari

Tue 11/24

11:15 am-3:30 pm

3 stops35h 15m

$904

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sun 11/15

7:05 am-10:55 pm

3 stops32h 50m

Trieste Ronchi dei Legionari

Mon 11/23

3:15 pm-1:10 pm

3 stops28h 55m

$996

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sun 11/15

3:40 pm-2:30 pm

1 stop15h 50m

Trieste Ronchi dei Legionari

Mon 11/23

3:15 pm-1:10 pm

2 stops28h 55m

$1,022

Quickest round-trip

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sun 11/15

3:40 pm-6:30 pm

1 stop19h 50m

Trieste Ronchi dei Legionari

Tue 11/24

6:35 am-3:20 pm

2 stops15h 45m

$1,022

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sun 11/15

3:40 pm-10:55 pm

1 stop24h 15m

Trieste Ronchi dei Legionari

Tue 11/24

3:15 pm-1:10 pm

1 stop28h 55m

$1,030

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Illinois to Trieste

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

Airlines

Other information

What airlines fly to Trieste?

Turkish Airlines, United Airlines and Lufthansa are the top three most popular airlines that fly to Trieste from Illinois according to our data. Turkish Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 10 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

Cheap Illinois to Trieste flight deals and tips

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

Best Price Found	$807
Fastest flight time	11h 45m
Direct flights	None

The best flight deal from Illinois to Trieste found on momondo in the last 72 hours is $807

The fastest flight from Illinois to Trieste takes 11h 45m

There are no direct flights from Illinois to Trieste. There are no popular flight routes from Illinois to Trieste.

Search flight deals

Frequently asked questions about flying from Illinois to Trieste

When did momondo last update prices for flights from Illinois to Trieste Ronchi dei Legionari Airport?
Prices for flights from Illinois to Trieste Ronchi dei Legionari Airport are updated daily.
How old do you have to be to fly from Illinois to Trieste Ronchi dei Legionari Airport?
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 Trieste Ronchi dei Legionari Airport.
What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?
The required travel and health documents for your Trieste Ronchi dei Legionari Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Trieste Ronchi dei Legionari Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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Why use momondo?

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

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 Trieste for you.

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

Yes. momondo allows you to filter the results for Illinois to Trieste flights to just show those with flexible booking policies.

How can momondo help me find flights from Illinois to Trieste?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Trieste.

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

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