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$720+ Cheap flights from Trieste (TRS) to Illinois

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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
TRS — ORD
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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Cheap flight deals from Trieste to Illinois

Best flights from Trieste to Illinois
Discover carefully curated flight deals from Trieste to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/11. 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.
jue. 1/296:15 amTRS - ORD
1 stop16h 05mLufthansa
mar. 2/39:50 pmORD - TRS
2 stops17h 50mLufthansa
Deal found 12/11$720
This KLM deal was found by Cheapflights users on 12/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 1/296:35 amTRS - ORD
2 stops22h 00mKLM
mar. 2/310:29 amORD - TRS
2 stops21h 01mKLM
Deal found 12/10$723
This ITA Airways deal was found by Cheapflights users on 12/9. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/167:15 pmTRS - ORD
1 stop24h 55mITA Airways
lun. 4/209:20 amORD - TRS
2 stops30h 35mITA Airways
Deal found 12/9$743
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/166:35 amTRS - ORD
1 stop13h 30mUnited Airlines
lun. 4/203:40 pmORD - TRS
1 stop11h 45mUnited Airlines
Deal found 12/9$989

Find flight deals from Trieste to Illinois

Keep the following information in mind while searching for Trieste to Illinois flight deals. Data was last updated diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$720
(Cheapflightsfares)
Provider with most accurate pricing for Trieste Ronchi dei Legionari-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Trieste Ronchi dei Legionari-Chicago (CHI) flights.
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From Trieste Ronchi dei Legionari to Illinois
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Trieste to Illinois 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 diciembre 12, 2025.
Use the filters below to find and compare flights from Trieste to Illinois that are best for you.

Fly from

Trieste

Fly to

Illinois

Route

Depart

Return

Price

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

jue. 1/29

6:15 am-3:20 pm

1 stop16h 05m

Chicago O'Hare Intl

mar. 2/3

9:50 pm-10:40 pm

2 stops17h 50m

$720

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

jue. 1/29

6:35 am-9:35 pm

2 stops22h 00m

Chicago O'Hare Intl

mar. 2/3

10:29 am-2:30 pm

2 stops21h 01m

$723

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

jue. 4/16

7:15 pm-1:10 pm

1 stop24h 55m

Chicago O'Hare Intl

lun. 4/20

9:20 am-10:55 pm

2 stops30h 35m

$743

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

jue. 4/16

6:35 am-1:05 pm

1 stop13h 30m

Chicago O'Hare Intl

lun. 4/20

3:40 pm-10:25 am

1 stop11h 45m

$989

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

sáb. 1/17

11:15 am-10:05 am

2 stops53h 50m

$786

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

dom. 1/18

6:35 am-10:05 am

2 stops58h 30m

$856

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

lun. 1/19

11:15 am-10:05 am

2 stops53h 50m

$882

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

mar. 1/6

11:15 am-10:05 am

2 stops29h 50m

$1,322

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

sáb. 5/30

6:35 am-1:15 pm

1 stop13h 40m

$1,646

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Best time to book a flight from Trieste to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Trieste 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 Trieste to Illinois

What is the cheapest month to book a flight from Trieste to Illinois?

Currently, November is the cheapest month in which you can book a flight from Trieste to Illinois (average of $454). Flying from Trieste to Illinois in January is currently the most expensive (average of $767). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Trieste to Illinois. 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 from for flights from Trieste to Illinois?

    Trieste Ronchi dei Legionari (TRS), located 18.2 mi from the city center, is the airport you fly out of when you book flights from Trieste to Illinois.

  • How long is the flight from Trieste to Illinois?

    Departing from Trieste to Illinois will take you 16h 05m. The distance from Trieste to Illinois is about 4683 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Trieste to Illinois?

    Currently, November is the cheapest month in which you can book a flight from Trieste to Illinois (average of $454). Flying from Trieste to Illinois in January is currently the most expensive (average of $767). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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