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Trieste

$928+ Cheap flights from O'Hare Intl (ORD) to Trieste (TRS)

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TRS
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Trieste

Cheapest flights from O'Hare Intl to Trieste
Explore the most affordable flight options available from O'Hare Intl to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/12. 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.
Sat 12/133:45 pmORD - TRS
1 stop19h 45mLufthansa
Sat 1/106:35 amTRS - ORD
2 stops18h 50mLufthansa
Deal found 12/12$3,345
This Arangrant deal was found by Cheapflights users on 12/12. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/134:10 pmORD - TRS
2 stops19h 20mSWISS
Sat 1/1011:15 amTRS - ORD
2 stops32h 30mSWISS
Deal found 12/12$3,397
This Cheapflightsfares deal was found by Cheapflights users on 12/12. 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.
Sun 12/149:05 pmORD - TRS
2 stops18h 20mLufthansa
Thu 1/82:50 pmTRS - ORD
2 stops29h 40mLufthansa
Deal found 12/12$3,474
This Arangrant deal was found by Cheapflights users on 12/12. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/133:45 pmORD - TRS
1 stop19h 45mMultiple Airlines
Sat 1/106:25 amTRS - ORD
1 stop13h 45mMultiple Airlines
Deal found 12/12$3,580
This Arangrant deal was found by Cheapflights users on 12/12. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/143:45 pmORD - TRS
1 stop11h 40mMultiple Airlines
Thu 1/82:50 pmTRS - ORD
1 stop29h 20mMultiple Airlines
Deal found 12/12$3,685

Find flight deals from O'Hare Intl to Trieste

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 December 14, 2025.

Most accurate provider

Ovago
2 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$928
(Turkish Airlines)
Provider with most accurate pricing for Chicago O'Hare Intl-Trieste Ronchi dei Legionari flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Trieste Ronchi dei Legionari flights.
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From Chicago O'Hare Intl to Trieste Ronchi dei Legionari
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Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 December 14, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Trieste that are best for you.

Fly from

O'Hare Intl

Fly to

Trieste

Route

Depart

Return

Price

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Wed 2/4

11:50 am-6:30 pm

2 stops47h 40m

Trieste Ronchi dei Legionari

Sun 2/8

11:15 am-6:25 pm

2 stops38h 10m

$928

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Mon 1/5

3:45 pm-2:00 pm

2 stops15h 15m

Trieste Ronchi dei Legionari

Mon 1/12

6:35 am-11:10 am

2 stops35h 35m

$947

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Mon 1/5

6:25 pm-2:00 pm

1 stop12h 35m

Trieste Ronchi dei Legionari

Mon 1/12

11:15 am-4:20 pm

2 stops36h 05m

$1,055

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Fri 3/20

11:05 am-2:30 pm

2 stops21h 25m

Trieste Ronchi dei Legionari

Sun 3/29

6:35 am-1:10 pm

1 stop13h 35m

$1,121

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Wed 6/10

10:40 pm-6:30 pm

2 stops36h 50m

$1,363

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Wed 6/10

3:00 pm-10:25 am

1 stop12h 25m

$1,437

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Compare providers for flights from O'Hare Intl to Trieste

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Trieste in December.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Trieste flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Chicago O'Hare Intl Airport-Trieste flight deals on Cheapflights vs. Ovago 90-95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Trieste flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Trieste flights, Cheapflights users trust AranGrant the most. AranGrant 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 O'Hare Intl Airport-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 O'Hare Intl to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from O'Hare Intl 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 O'Hare Intl Airport to Trieste

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Trieste?

Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Trieste (average of $429). Flying from Chicago O'Hare Intl Airport to Trieste in June is currently the most expensive (average of $785). 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 O'Hare Intl 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 O'Hare Intl?

    Most people fly into Trieste Ronchi dei Legionari (TRS) if they book a flight to Trieste from Chicago O'Hare Intl. On average, Ronchi dei Legionari has 0 inbound flights from Chicago O'Hare Intl per day from 0 airlines. Trieste Ronchi dei Legionari is conveniently located just 18.2 mi from Trieste’s city center.

  • How long is the flight from Chicago O'Hare Intl Airport to Trieste?

    Departing from Chicago O'Hare Intl Airport to Trieste will take you 15h 15m. Airlines will cover a distance of 4683 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from O'Hare Intl to Trieste that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Trieste?

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

  • Can I find deals for business class flights from O'Hare Intl to Trieste?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Trieste?

    Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Trieste (average of $429). Flying from Chicago O'Hare Intl Airport to Trieste in June is currently the most expensive (average of $785). 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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