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Trieste

$542+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — TRS
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
2 stars

Round-trip from

$834
(FlightHub)

One-way from

$542
(Cheapflightsfares)
Provider with most accurate pricing for Chicago (CHI)-Trieste Ronchi dei Legionari flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Trieste Ronchi dei Legionari flights.
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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 May 1, 2025.

This FlightHub deal was found by Cheapflights users on 4/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2311:25 amORD - TRS
2 stops24h 10mTurkish Airlines
Tue 9/3011:15 amTRS - ORD
2 stops29h 25mTurkish Airlines
Deal found 4/30$834
This Gurufare deal was found by Cheapflights users on 4/30. 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.
Tue 9/2310:30 pmORD - TRS
1 stop17h 05mLufthansa
Tue 9/306:30 amTRS - ORD
1 stop13h 25mLufthansa
Deal found 4/30$898
This FlightHub deal was found by Cheapflights users on 4/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/234:42 pmORD - TRS
2 stops14h 23mMultiple Airlines
Tue 9/306:30 amTRS - ORD
1 stop13h 25mMultiple Airlines
Deal found 4/30$909
This lastminute.com deal was found by Cheapflights users on 5/1. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1511:00 amORD - TRS
2 stops20h 30mKLM
Sun 6/223:15 pmTRS - ORD
2 stops32h 03mKLM
Deal found 5/1$1,129
This Austrian Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 9/154:20 pmORD - TRS
2 stops35h 05mAustrian Airlines
Mon 10/137:25 pmTRS - ORD
2 stops24h 55mAustrian Airlines
Deal found 4/30$1,198
This Gotogate deal was found by Cheapflights users on 5/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/153:00 pmORD - TRS
1 stop16h 30mITA Airways
Sun 6/227:15 pmTRS - ORD
1 stop24h 55mITA Airways
Deal found 5/1$1,280
This KAYAK deal was found by Cheapflights users on 4/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/247:25 pmORD - TRS
2 stops16h 05mIcelandair
Sun 8/311:15 amTRS - ORD
2 stops17h 00mIcelandair
Deal found 4/30$1,385
This Delta deal was found by Cheapflights users on 4/30. 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.
Wed 7/2310:20 amORD - TRS
2 stops17h 05mDelta
Sat 8/26:35 amTRS - ORD
2 stops32h 50mDelta
Deal found 4/30$1,407
This Delta deal was found by Cheapflights users on 4/30. 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.
Thu 6/1210:26 amMDW - TRS
2 stops21h 04mDelta
Thu 6/196:35 amTRS - MDW
2 stops22h 10mDelta
Deal found 4/30$1,929
This lastminute.com deal was found by Cheapflights users on 5/1. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/151:09 pmMDW - TRS
2 stops18h 21mMultiple Airlines
Sun 6/226:35 amTRS - MDW
2 stops18h 27mMultiple Airlines
Deal found 5/1$2,396

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 May 1, 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

Tue 9/23

11:25 am-6:35 pm

2 stops24h 10m

Trieste Ronchi dei Legionari

Tue 9/30

11:15 am-9:40 am

2 stops29h 25m

$834

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Tue 9/23

10:30 pm-10:35 pm

1 stop17h 05m

Trieste Ronchi dei Legionari

Tue 9/30

6:30 am-12:55 pm

1 stop13h 25m

$898

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Tue 9/23

4:42 pm-2:05 pm

2 stops14h 23m

Trieste Ronchi dei Legionari

Tue 9/30

6:30 am-12:55 pm

1 stop13h 25m

$909

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sun 6/15

11:00 am-2:30 pm

2 stops20h 30m

Trieste Ronchi dei Legionari

Sun 6/22

3:15 pm-4:18 pm

2 stops32h 03m

$1,129

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Mon 9/15

4:20 pm-10:25 am

2 stops35h 05m

Trieste Ronchi dei Legionari

Mon 10/13

7:25 pm-1:20 pm

2 stops24h 55m

$1,198

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sun 6/15

3:00 pm-2:30 pm

1 stop16h 30m

Trieste Ronchi dei Legionari

Sun 6/22

7:15 pm-1:10 pm

1 stop24h 55m

$1,280

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Thu 7/24

7:25 pm-6:30 pm

2 stops16h 05m

Trieste Ronchi dei Legionari

Sun 8/3

11:15 am-9:15 pm

2 stops17h 00m

$1,385

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Wed 7/23

10:20 am-10:25 am

2 stops17h 05m

Trieste Ronchi dei Legionari

Sat 8/2

6:35 am-8:25 am

2 stops32h 50m

$1,407

ChicagoTrieste

MDW - TRS

MDWTRS

Chicago Midway

Thu 6/12

10:26 am-2:30 pm

2 stops21h 04m

Trieste Ronchi dei Legionari

Thu 6/19

6:35 am-9:45 pm

2 stops22h 10m

$1,929

ChicagoTrieste

MDW - TRS

MDWTRS

Chicago Midway

Sun 6/15

1:09 pm-2:30 pm

2 stops18h 21m

Trieste Ronchi dei Legionari

Sun 6/22

6:35 am-6:02 pm

2 stops18h 27m

$2,396

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 14 results
1
2
  • Most accurate provider: When it comes to deals on Chicago-Trieste flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Trieste flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Trieste flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Trieste flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Trieste flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Rainfall in Trieste by month

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

In terms of precipitation, rainfall in Trieste ranges from 2.4 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. February is typically the driest time to visit Trieste when rainfall is around 2.4 in.

Temperature in Trieste by month

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

If weather is an important factor for your trip to Trieste, 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 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 May 1, 2025.
To help decide which airline to fly from Chicago to Trieste, see what other customers have to say about Delta, KLM and Austrian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
781 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Turkish Airlines
7.3
Good
3,791 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Icelandair
7.0
Good
487 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 1 airline has 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.

  • What are the cheapest airlines flying from Chicago to Trieste round-trip?

    Cheapflights users have booked flights from Chicago to Trieste round-trip from $834. Other airlines that can offer you cheap pricing are Lufthansa, from $898, and KLM, from $1,129.

  • What are the cheapest airlines to fly from Chicago to Trieste one-way?

    One-way options have recently been found by users for as low as $542 on ITA Airways. Other airlines that offer cheap prices include Lufthansa from $681 and Delta from $814 one-way.

  • 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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Alternative routes for Chicago to Trieste

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Chicago to Trieste

Discover the top airline that operate flights from Chicago to Trieste. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$540Average$1,064FlexibilityNo cancel feeOn-time81%

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