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Cheap flights from Trieste to Chicago from $382

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Trieste to Chicago departing on 9/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Trieste to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
ITA Airways Logo
6:35 am - 1:10 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
13h 35m1 stop Rome Fiumicino
ITA Airways Logo
3:00 pm - 10:25 amORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
12h 25m1 stop Rome Fiumicino
$563ITA Airways
Tue, Sep 22 - Sun, Sep 27
ITA Airways Logo
6:35 am - 1:10 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
13h 35m1 stop Rome Fiumicino
ITA Airways Logo
3:00 pm - 2:30 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
16h 30m1 stop Rome Fiumicino
$575ITA Airways
Thu, Sep 17 - Thu, Sep 24
ITA Airways Logo
11:15 am - 1:10 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
32h 55m1 stop Rome Fiumicino
ITA Airways Logo
3:00 pm - 10:25 amORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
12h 25m1 stop Rome Fiumicino
$585ITA Airways
Sat, Sep 5 - Tue, Sep 15
ITA Airways Logo
7:15 pm - 1:10 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
24h 55m1 stop Rome Fiumicino
ITA Airways Logo
3:00 pm - 6:30 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
20h 30m1 stop Rome Fiumicino
$676ITA Airways
Fri, Aug 28 - Sat, Sep 5
ITA Airways Logo
6:35 am - 1:10 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
13h 35m1 stop Rome Fiumicino
ITA Airways Logo
3:00 pm - 2:30 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
16h 30m1 stop Rome Fiumicino
$714ITA Airways
Sun, Sep 20 - Sun, Sep 27
ITA Airways Logo
6:35 am - 1:10 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
13h 35m1 stop Rome Fiumicino
ITA Airways Logo
3:00 pm - 10:25 amORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
12h 25m1 stop Rome Fiumicino
$735ITA Airways
Sun, Sep 20 - Sun, Sep 27
ITA Airways Logo
6:35 am - 1:10 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
13h 35m1 stop Rome Fiumicino
ITA Airways Logo
10:54 am - 10:25 amORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
16h 31m2 stops Washington, D.C. Dulles Intl Rome Fiumicino
$757ITA Airways
Thu, Sep 17 - Thu, Sep 24
ITA Airways Logo
7:15 pm - 1:10 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
24h 55m1 stop Rome Fiumicino
ITA Airways Logo
8:50 am - 10:25 amORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
18h 35m2 stops Washington, D.C. Dulles Intl Rome Fiumicino
$759ITA Airways
Tue, Sep 22 - Sun, Sep 27
ITA Airways Logo
6:35 am - 5:22 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
17h 47m2 stops Rome Fiumicino Boston Logan Intl
ITA Airways Logo
3:00 pm - 10:25 amORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
12h 25m1 stop Rome Fiumicino
$781ITA Airways
Sat, Sep 5 - Tue, Sep 15
Multiple Airlines Logo
3:15 pm - 4:00 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
31h 45m3 stops Rome Fiumicino Madrid Barajas Lisbon Humberto Delgado
Multiple Airlines Logo
6:00 pm - 10:25 amORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
33h 25m3 stops Lisbon Humberto Delgado Madrid Barajas Rome Fiumicino
$793Multiple Airlines
Tue, Sep 22 - Sun, Sep 27

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ITA Airways flights from Trieste to Chicago

Our best ITA Airways deals on Trieste to Chicago flight tickets
ITA Airways
Sep 22
TRS6:35 amTrieste Ronchi dei Legionari
13h 35m
1 stop
ORD1:10 pmChicago O'Hare Intl
Sep 27
ORD3:00 pmChicago O'Hare Intl
12h 25m
1 stop
TRS10:25 amTrieste Ronchi dei Legionari
$563
ITA Airways
Sep 17
TRS6:35 amTrieste Ronchi dei Legionari
13h 35m
1 stop
ORD1:10 pmChicago O'Hare Intl
Sep 24
ORD3:00 pmChicago O'Hare Intl
16h 30m
1 stop
TRS2:30 pmTrieste Ronchi dei Legionari
$575
ITA Airways
Sep 5
TRS11:15 amTrieste Ronchi dei Legionari
32h 55m
1 stop
ORD1:10 pmChicago O'Hare Intl
Sep 15
ORD3:00 pmChicago O'Hare Intl
12h 25m
1 stop
TRS10:25 amTrieste Ronchi dei Legionari
$585

TAP AIR PORTUGAL flights from Trieste to Chicago

Our best TAP AIR PORTUGAL deals on Trieste to Chicago flight tickets
TAP AIR PORTUGAL
Jan 14
TRS3:15 pmTrieste Ronchi dei Legionari
31h 15m
2 stops
ORD3:30 pmChicago O'Hare Intl
Jan 17
ORD8:10 pmChicago O'Hare Intl
39h 20m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
$979
TAP AIR PORTUGAL
Jan 14
TRS3:15 pmTrieste Ronchi dei Legionari
31h 15m
2 stops
ORD3:30 pmChicago O'Hare Intl
Jan 17
ORD8:10 pmChicago O'Hare Intl
39h 20m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
$980
TAP AIR PORTUGAL
Jan 14
TRS3:15 pmTrieste Ronchi dei Legionari
31h 15m
2 stops
ORD3:30 pmChicago O'Hare Intl
Jan 17
ORD8:10 pmChicago O'Hare Intl
39h 20m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
$981

momondo Fare Finder

 
Customize your flight search to find flights from Trieste to Chicago 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 August 7, 2026.
Use the filters below to find and compare flights from Trieste to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

TriesteChicago

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

TRSORD

Trieste Ronchi dei Legionari

Tue 9/22

6:35 am-1:10 pm

1 stop13h 35m

Chicago O'Hare Intl

Sun 9/27

3:00 pm-10:25 am

1 stop12h 25m

$563

TriesteChicago

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

TRSORD

Trieste Ronchi dei Legionari

Thu 9/17

6:35 am-1:10 pm

1 stop13h 35m

Chicago O'Hare Intl

Thu 9/24

3:00 pm-2:30 pm

1 stop16h 30m

$575

TriesteChicago

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

TRSORD

Trieste Ronchi dei Legionari

Sat 9/5

11:15 am-1:10 pm

1 stop32h 55m

Chicago O'Hare Intl

Tue 9/15

3:00 pm-10:25 am

1 stop12h 25m

$585

TriesteChicago

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

TRSORD

Trieste Ronchi dei Legionari

Fri 8/28

7:15 pm-1:10 pm

1 stop24h 55m

Chicago O'Hare Intl

Sat 9/5

3:00 pm-6:30 pm

1 stop20h 30m

$676

TriesteChicago

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

TRSORD

Trieste Ronchi dei Legionari

Sun 9/20

6:35 am-1:10 pm

1 stop13h 35m

Chicago O'Hare Intl

Sun 9/27

3:00 pm-2:30 pm

1 stop16h 30m

$714

TriesteChicago

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

TRSORD

Trieste Ronchi dei Legionari

Sun 9/20

6:35 am-1:10 pm

1 stop13h 35m

Chicago O'Hare Intl

Sun 9/27

3:00 pm-10:25 am

1 stop12h 25m

$735

TriesteChicago

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

TRSORD

Trieste Ronchi dei Legionari

Thu 9/17

6:35 am-1:10 pm

1 stop13h 35m

Chicago O'Hare Intl

Thu 9/24

10:54 am-10:25 am

2 stops16h 31m

$757

TriesteChicago

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

TRSORD

Trieste Ronchi dei Legionari

Tue 9/22

7:15 pm-1:10 pm

1 stop24h 55m

Chicago O'Hare Intl

Sun 9/27

8:50 am-10:25 am

2 stops18h 35m

$759

TriesteChicago

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

TRSORD

Trieste Ronchi dei Legionari

Sat 9/5

6:35 am-5:22 pm

2 stops17h 47m

Chicago O'Hare Intl

Tue 9/15

3:00 pm-10:25 am

1 stop12h 25m

$781

TriesteChicago

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

TRSORD

Trieste Ronchi dei Legionari

Tue 9/22

3:15 pm-4:00 pm

3 stops31h 45m

Chicago O'Hare Intl

Sun 9/27

6:00 pm-10:25 am

3 stops33h 25m

$793

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Trieste to Chicago

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 Trieste Ronchi dei Legionari to Chicago?

ITA Airways is the most popular carrier operating from Trieste Ronchi dei Legionari to Chicago

When to book flights from Trieste to Chicago

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

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

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

Fastest flight time

13h 35m

Direct flights

None
The fastest flight from Trieste to Chicago takes 13h 35m
There are no direct flights from Trieste to Chicago. There are no popular flight routes from Trieste to Chicago.
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Frequently asked questions about flying from Trieste to Chicago

  • How far is Trieste Ronchi dei Legionari to Chicago by plane?

    A flight from Trieste Ronchi dei Legionari to Chicago will travel around 4695.7 mi. By plane, this route typically takes 13h 35m.

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Trieste Ronchi dei Legionari Airport to Chicago.

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

    The necessary travel and health documents for your Chicago 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.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Portage
Benton Harbor
Lansing
Saint Joseph
Valparaiso
Schererville
Munster
Chesterton
Monticello
Crown Point
Porter
Griffith
Saint John

Why use momondo?

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

It is quick and easy to find Trieste to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

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

Yes. All flights to Chicago from Trieste on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Trieste to Chicago 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 Trieste to Chicago right now. Can momondo alert me if prices change?

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

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport