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

Prices for flights from Chicago to Trieste Ronchi dei Legionari Airport are refreshed on a daily basis.

How old do you have to be to fly from Chicago 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 Chicago 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.

$1,032 Cheap Flights from Chicago to Trieste in 2026/27

Find the cheapest flights from Chicago to Trieste

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 pm - 10:55 pmORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

20h 55m2 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

$1,032Multiple Airlines

Wed, Dec 16 - Mon, Jan 18

7:10 am - 10:25 amORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

44h 15m2 stops Newark Rome Fiumicino

6:35 am - 1:10 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

13h 35m1 stop Rome Fiumicino

$1,040United Airlines

Mon, Mar 1 - Fri, Mar 5

4:45 pm - 10:25 amORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

34h 40m2 stops Newark Rome Fiumicino

6:35 am - 1:10 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

13h 35m1 stop Rome Fiumicino

$1,040United Airlines

Mon, Mar 1 - Fri, Mar 5

7:10 am - 10:25 amORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

44h 15m2 stops Newark Rome Fiumicino

6:35 am - 11:15 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

23h 40m2 stops Rome Fiumicino Washington, D.C. Dulles Intl

$1,050United Airlines

Mon, Mar 1 - Fri, Mar 5

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

19h 50m1 stop Rome Fiumicino

3:15 pm - 3:20 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

31h 05m2 stops Rome Fiumicino Frankfurt am Main

$1,253Lufthansa

Wed, Dec 16 - Mon, Jan 18

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TAP AIR PORTUGAL flights from Chicago to Trieste

Our best TAP AIR PORTUGAL deals on Chicago to Trieste flight tickets

TAP AIR PORTUGAL

Dec 16

ORD7:00 pmChicago O'Hare Intl

16h 30m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Jan 18

TRS3:15 pmTrieste Ronchi dei Legionari

35h 53m

3 stops

ORD8:08 pmChicago O'Hare Intl

$1,374

TAP AIR PORTUGAL

Dec 16

ORD12:55 pmChicago O'Hare Intl

22h 35m

3 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Jan 18

TRS3:15 pmTrieste Ronchi dei Legionari

35h 53m

3 stops

ORD8:08 pmChicago O'Hare Intl

$1,778

United Airlines flights from Chicago to Trieste

Our best United Airlines deals on Chicago to Trieste flight tickets

United Airlines

Mar 1

ORD4:45 pmChicago O'Hare Intl

34h 40m

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

$1,040

United Airlines

Mar 1

ORD7:10 amChicago O'Hare Intl

44h 15m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Mar 5

TRS6:35 amTrieste Ronchi dei Legionari

23h 40m

2 stops

ORD11:15 pmChicago O'Hare Intl

$1,050

United Airlines

Nov 16

ORD3:40 pmChicago O'Hare Intl

11h 45m

1 stop

TRS10:25 amTrieste Ronchi dei Legionari

Nov 23

TRS6:35 amTrieste Ronchi dei Legionari

13h 35m

1 stop

ORD1:10 pmChicago O'Hare Intl

$1,118

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

Wed 12/16

7:00 pm-10:55 pm

2 stops20h 55m

Trieste Ronchi dei Legionari

Mon 1/18

7:15 pm-3:30 pm

2 stops51h 15m

$1,032

ChicagoTrieste

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

ORDTRS

Chicago O'Hare Intl

Mon 3/1

7:10 am-10:25 am

2 stops44h 15m

Trieste Ronchi dei Legionari

Fri 3/5

6:35 am-1:10 pm

1 stop13h 35m

$1,040

Quickest round-trip

ChicagoTrieste

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

ORDTRS

Chicago O'Hare Intl

Mon 3/1

4:45 pm-10:25 am

2 stops34h 40m

Trieste Ronchi dei Legionari

Fri 3/5

6:35 am-1:10 pm

1 stop13h 35m

$1,040

ChicagoTrieste

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

ORDTRS

Chicago O'Hare Intl

Mon 3/1

7:10 am-10:25 am

2 stops44h 15m

Trieste Ronchi dei Legionari

Fri 3/5

6:35 am-11:15 pm

2 stops23h 40m

$1,050

ChicagoTrieste

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

ORDTRS

Chicago O'Hare Intl

Wed 12/16

3:40 pm-6:30 pm

1 stop19h 50m

Trieste Ronchi dei Legionari

Mon 1/18

3:15 pm-3:20 pm

2 stops31h 05m

$1,253

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Chicago 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

What airlines fly to Trieste?

United Airlines, Turkish Airlines and Lufthansa are the top three most popular airlines that fly to Trieste from Chicago according to our data. United 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.

When to book flights from Chicago to Trieste

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Trieste according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago to Trieste (CHI to TRS) flight deals and tips

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

Best Price Found	$1,032
Fastest flight time	17h 49m
Direct flights	None

The best flight deal from Chicago to Trieste found on momondo in the last 72 hours is $1,032

The fastest flight from Chicago to Trieste takes 17h 49m

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

Search flight deals

Frequently asked questions about flying from Chicago to Trieste

How far is Chicago to Trieste Ronchi dei Legionari by plane?
The distance between Chicago and Trieste Ronchi dei Legionari is about 4695.7 mi. By plane, this route typically takes 17h 49m.
When did momondo last update prices for flights from Chicago to Trieste Ronchi dei Legionari Airport?
Prices for flights from Chicago to Trieste Ronchi dei Legionari Airport are refreshed on a daily basis.
How old do you have to be to fly from Chicago 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 Chicago 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 should I use momondo to find a flight deal from Chicago to Trieste?

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

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

momondo does allow users to show only those flights to Trieste from Chicago which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Chicago to Trieste flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Trieste, momondo offers a useful price alert feature which will track prices for flights to Trieste from Chicago and alert you when they change.