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$589+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
TRS — ORD
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
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 June 16, 2025.

Round-trip from

$589
(oojo)
From Trieste Ronchi dei Legionari to Illinois
Search Deals

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 June 16, 2025.

This oojo deal was found by Cheapflights users on 6/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/306:35 amTRS - ORD
1 stop13h 35mITA Airways
Sun 9/73:00 pmORD - TRS
1 stop20h 35mITA Airways
Deal found 6/14$589
This Lufthansa deal was found by Cheapflights users on 6/15. 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.
Fri 9/196:30 amTRS - ORD
1 stop13h 25mLufthansa
Fri 10/310:30 pmORD - TRS
1 stop16h 55mLufthansa
Deal found 6/15$658
This lol.travel deal was found by Cheapflights users on 6/14. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/296:30 amTRS - ORD
2 stops17h 50mMultiple Airlines
Tue 8/53:50 pmORD - TRS
2 stops15h 15mMultiple Airlines
Deal found 6/14$1,046
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/3011:15 amTRS - ORD
2 stops17h 22mDelta
Fri 7/42:15 pmORD - TRS
2 stops37h 10mDelta
Deal found 6/15$1,358
This Austrian Airlines deal was found by Cheapflights users on 6/14. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/157:15 pmTRS - ORD
2 stops49h 05mAustrian Airlines
Thu 6/194:20 pmORD - TRS
2 stops23h 35mAustrian Airlines
Deal found 6/14$2,380
This Emirates deal was found by Cheapflights users on 6/14. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/297:15 pmTRS - ORD
2 stops27h 30mEmirates
Tue 8/58:35 pmORD - TRS
2 stops39h 00mEmirates
Deal found 6/14$3,602
This Turkish Airlines deal was found by Cheapflights users on 6/15. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:35 amTRS - ORD
2 stops34h 05mTurkish Airlines
Wed 9/107:50 pmORD - TRS
2 stops20h 05mTurkish Airlines
Deal found 6/15$5,193

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 June 16, 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

Sat 8/30

6:35 am-1:10 pm

1 stop13h 35m

Chicago O'Hare Intl

Sun 9/7

3:00 pm-6:35 pm

1 stop20h 35m

$589

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Fri 9/19

6:30 am-12:55 pm

1 stop13h 25m

Chicago O'Hare Intl

Fri 10/3

10:30 pm-10:25 pm

1 stop16h 55m

$658

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Tue 7/29

6:30 am-5:20 pm

2 stops17h 50m

Chicago O'Hare Intl

Tue 8/5

3:50 pm-2:05 pm

2 stops15h 15m

$1,046

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Mon 6/30

11:15 am-9:37 pm

2 stops17h 22m

Chicago O'Hare Intl

Fri 7/4

2:15 pm-10:25 am

2 stops37h 10m

$1,358

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Tue 7/29

7:15 pm-3:45 pm

2 stops27h 30m

Chicago O'Hare Intl

Tue 8/5

8:35 pm-6:35 pm

2 stops39h 00m

$3,602

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Sun 9/7

6:35 am-9:40 am

2 stops34h 05m

Chicago O'Hare Intl

Wed 9/10

7:50 pm-10:55 pm

2 stops20h 05m

$5,193

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Wed 8/13

11:25 am-4:10 pm

3 stops35h 45m

$617

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Wed 8/13

6:35 am-1:10 pm

1 stop13h 35m

$805

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Fri 8/8

2:45 pm-12:50 pm

2 stops29h 05m

$1,545

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/13

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, August is the cheapest month in which you can book a flight from Trieste to Illinois (average of $245). Flying from Trieste to Illinois in March is currently the most expensive (average of $321). 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.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated June 16, 2025.
Emirates
8.1
Very good
3,267 reviews

Boarding

8.1

Crew

8.3

Overall

8.1

Entertainment

8.2

Food

7.8

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Emirates
8.1
Very good
3,267 reviews
Emirates
8.1
Very good
3,267 reviews

Boarding

8.1

Crew

8.3

Overall

8.1

Entertainment

8.2

Food

7.8

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Delta
8.0
Very good
7,963 reviews
Emirates
8.1
Very good
3,267 reviews

Boarding

8.1

Crew

8.3

Overall

8.1

Entertainment

8.2

Food

7.8

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Turkish Airlines
7.3
Good
3,852 reviews
Emirates
8.1
Very good
3,267 reviews

Boarding

8.1

Crew

8.3

Overall

8.1

Entertainment

8.2

Food

7.8

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Lufthansa
6.8
Okay
7,148 reviews
Emirates
8.1
Very good
3,267 reviews

Boarding

8.1

Crew

8.3

Overall

8.1

Entertainment

8.2

Food

7.8

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
ITA Airways
6.7
Okay
994 reviews
Emirates
8.1
Very good
3,267 reviews

Boarding

8.1

Crew

8.3

Overall

8.1

Entertainment

8.2

Food

7.8

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

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.

  • 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, August is the cheapest month in which you can book a flight from Trieste to Illinois (average of $245). Flying from Trieste to Illinois in March is currently the most expensive (average of $321). 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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