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Trieste

$642+ Cheap flights from Chicago (CHI) to Trieste (TRS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/27. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — TRS
sep. 2 — sep. 91
mar. 9/2
mar. 9/9
1 adult, Economy
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Cheap flight deals from Chicago to Trieste

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Trieste (TRS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated agosto 28, 2025.

Round-trip from

$762
(oojo)

One-way from

$642
(KAYAK)
From Chicago (CHI) to Trieste Ronchi dei Legionari
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One-way flight from Chicago (CHI) to Trieste Ronchi dei Legionari
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Find flight deals from Chicago to Trieste

Cheapest flights from Chicago to Trieste
Explore the most affordable flight options available from Chicago to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 28, 2025.

This oojo deal was found by Cheapflights users on 8/28. 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.
jue. 11/68:20 pmORD - TRS
2 stops19h 35mMultiple Airlines
lun. 11/173:15 pmTRS - ORD
2 stops25h 50mMultiple Airlines
Deal found 8/28$762
This oojo deal was found by Cheapflights users on 8/27. 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.
mar. 9/167:50 pmORD - TRS
2 stops20h 05mMultiple Airlines
mar. 9/2311:15 amTRS - ORD
2 stops29h 25mMultiple Airlines
Deal found 8/27$809
This oojo deal was found by Cheapflights users on 8/28. 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.
mié. 9/103:00 pmORD - TRS
1 stop20h 30mITA Airways
sáb. 9/137:15 pmTRS - ORD
1 stop24h 55mITA Airways
Deal found 8/28$897
This Gurufare deal was found by Cheapflights users on 8/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/64:20 pmORD - TRS
1 stop14h 45mLufthansa
lun. 11/172:40 pmTRS - ORD
1 stop27h 30mLufthansa
Deal found 8/28$935
This Mytrip deal was found by Cheapflights users on 8/28. 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.
mié. 9/1011:25 amORD - TRS
3 stops28h 30mMultiple Airlines
sáb. 9/1311:15 amTRS - ORD
3 stops29h 25mMultiple Airlines
Deal found 8/28$983
This KLM deal was found by Cheapflights users on 8/27. 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. 11/139:32 amMDW - TRS
2 stops21h 58mKLM
lun. 11/176:35 amTRS - MDW
2 stops23h 57mKLM
Deal found 8/27$1,033
This Gurufare deal was found by Cheapflights users on 8/27. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/164:00 pmORD - TRS
1 stop15h 05mLufthansa
mar. 9/236:30 amTRS - ORD
1 stop13h 25mLufthansa
Deal found 8/27$1,633
This Expedia deal was found by Cheapflights users on 8/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/307:15 amORD - TRS
2 stops23h 45mMultiple Airlines
dom. 12/147:15 pmTRS - ORD
2 stops48h 30mMultiple Airlines
Deal found 8/28$1,746

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Trieste 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 agosto 28, 2025.
Use the filters below to find and compare flights from Chicago to Trieste that are best for you.

Fly from

Chicago

Fly to

Trieste

Route

Depart

Return

Price

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

jue. 11/6

8:20 pm-10:55 pm

2 stops19h 35m

Trieste Ronchi dei Legionari

lun. 11/17

3:15 pm-10:05 am

2 stops25h 50m

$762

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

mar. 9/16

7:50 pm-10:55 pm

2 stops20h 05m

Trieste Ronchi dei Legionari

mar. 9/23

11:15 am-9:40 am

2 stops29h 25m

$809

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

mié. 9/10

3:00 pm-6:30 pm

1 stop20h 30m

Trieste Ronchi dei Legionari

sáb. 9/13

7:15 pm-1:10 pm

1 stop24h 55m

$897

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

jue. 11/6

4:20 pm-2:05 pm

1 stop14h 45m

Trieste Ronchi dei Legionari

lun. 11/17

2:40 pm-11:10 am

1 stop27h 30m

$935

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

mié. 9/10

11:25 am-10:55 pm

3 stops28h 30m

Trieste Ronchi dei Legionari

sáb. 9/13

11:15 am-9:40 am

3 stops29h 25m

$983

ChicagoTrieste

MDW - TRS

MDWTRS

Chicago Midway

jue. 11/13

9:32 am-2:30 pm

2 stops21h 58m

Trieste Ronchi dei Legionari

lun. 11/17

6:35 am-11:32 pm

2 stops23h 57m

$1,033

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

mar. 9/16

4:00 pm-2:05 pm

1 stop15h 05m

Trieste Ronchi dei Legionari

mar. 9/23

6:30 am-12:55 pm

1 stop13h 25m

$1,633

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

dom. 11/30

7:15 am-2:00 pm

2 stops23h 45m

Trieste Ronchi dei Legionari

dom. 12/14

7:15 pm-12:45 pm

2 stops48h 30m

$1,746

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

sáb. 12/27

7:55 pm-2:00 pm

2 stops35h 05m

$642

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

jue. 12/25

4:20 pm-2:05 pm

1 stop14h 45m

$675

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/28

Showing 1-10 of 13 results
1
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Best time to book a flight from Chicago to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from Chicago 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 Chicago to Trieste
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Trieste

Get insights into the airlines that provide service to Trieste. 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 Trieste. Reviews last updated agosto 28, 2025.
Get a feel of what it's like to fly with ITA Airways from Chicago to Trieste by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
ITA Airways
6.7
Okay
1,024 reviews

Comfort

6.6

Boarding

6.8

Food

6.0

Entertainment

6.2

Crew

7.3

Overall

6.7

Reviews

1 / 20
10.0
Excellent

Emanuele,Aug 2025

FCO - PMO

I got the new business class seats used on flights to Dubai and Saudi Arabia. Wow! Crew was super nice!
ITA Airways
6.7
Okay
1,024 reviews
ITA Airways
6.7
Okay
1,024 reviews

Comfort

6.6

Boarding

6.8

Food

6.0

Entertainment

6.2

Crew

7.3

Overall

6.7

Reviews

1 / 20
10.0
Excellent

Emanuele,Aug 2025

FCO - PMO

I got the new business class seats used on flights to Dubai and Saudi Arabia. Wow! Crew was super nice!

Related info for your journey

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

    Trieste Ronchi dei Legionari (TRS) is the airport you will fly into if you book a flight from Chicago to Trieste. You should not have trouble finding flights to Ronchi dei Legionari from Chicago; the airport handles an average of 0 inbound flights from Chicago per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Trieste airport from Chicago. It is only a 18.2 mi journey from Ronchi dei Legionari (TRS) to Trieste’s city center.

  • How long is the flight from Chicago to Trieste?

    Departing from Chicago to Trieste will take you 20h 30m. Airlines will cover a distance of 4683 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

See more FAQs

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