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$577+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
TRS — ORD
Nov 21 — Nov 281
Fri 11/21
Fri 11/28
1 adult, Economy
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Cheap flight deals from Trieste to Illinois

Keep the following information in mind while searching for Trieste to Illinois flight deals. Data was last updated October 22, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$577
(Mytrip)
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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Find flight deals from Trieste to Illinois

Cheapest flights from Trieste to Illinois
Explore the most affordable flight options available from Trieste to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2025.

This Mytrip deal was found by Cheapflights users on 10/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/57:20 pmTRS - ORD
2 stops26h 50mMultiple Airlines
Sun 11/95:20 pmORD - TRS
2 stops22h 30mMultiple Airlines
Deal found 10/21$577
This Lufthansa deal was found by Cheapflights users on 10/21. 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.
Thu 11/206:15 amTRS - ORD
1 stop13h 55mLufthansa
Mon 11/244:20 pmORD - TRS
1 stop14h 40mLufthansa
Deal found 10/21$638
This Booking.com deal was found by Cheapflights users on 10/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:40 pmTRS - ORD
1 stop29h 30mLufthansa
Sun 11/910:35 pmORD - TRS
1 stop16h 50mLufthansa
Deal found 10/21$652

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 October 22, 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

Wed 11/5

6:35 am-8:05 pm

3 stops20h 30m

Chicago O'Hare Intl

Sun 11/9

10:35 pm-10:50 pm

2 stops17h 15m

$630

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Thu 11/20

6:15 am-1:10 pm

1 stop13h 55m

Chicago O'Hare Intl

Mon 11/24

4:20 pm-2:00 pm

1 stop14h 40m

$638

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Sat 1/24

6:25 am-7:45 pm

2 stops20h 20m

Chicago O'Hare Intl

Sat 2/7

8:45 am-2:05 pm

2 stops22h 20m

$675

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Wed 11/5

2:40 pm-12:45 pm

2 stops29h 05m

Chicago O'Hare Intl

Sun 11/9

6:25 pm-10:25 pm

1 stop21h 00m

$679

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Sat 1/24

6:25 am-3:20 pm

1 stop15h 55m

Chicago O'Hare Intl

Sat 2/7

3:20 pm-2:05 pm

1 stop15h 45m

$682

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Mon 10/27

11:15 am-11:05 am

2 stops29h 50m

$6,503

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Tue 10/28

6:35 am-7:25 pm

2 stops42h 50m

$6,628

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

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 $476). Flying from Trieste to Illinois in June is currently the most expensive (average of $691). 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 13h 55m. The distance from Trieste to Illinois is about 4683 mi.

  • 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 $476). Flying from Trieste to Illinois in June is currently the most expensive (average of $691). 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.

See more FAQs

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