HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Trieste

$546+ Cheap flights from O'Hare Intl (ORD) 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TRS
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Trieste with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 July 3, 2025.

Round-trip from

$687
(Trip.com)

One-way from

$546
(Gotogate)
From Chicago O'Hare Intl to Trieste Ronchi dei Legionari
Search Deals
One-way flight from Chicago O'Hare Intl to Trieste Ronchi dei Legionari
Search Deals

Find 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 July 3, 2025.

This Trip.com deal was found by Cheapflights users on 6/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/157:15 pmORD - TRS
2 stops44h 40mMultiple Airlines
Fri 8/223:15 pmTRS - ORD
2 stops31h 55mMultiple Airlines
Deal found 6/30$687
This FlightHub deal was found by Cheapflights users on 7/2. 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.
Mon 9/223:00 pmORD - TRS
1 stop12h 25mITA Airways
Mon 9/296:35 amTRS - ORD
1 stop13h 35mITA Airways
Deal found 7/2$773
This Mytrip deal was found by Cheapflights users on 7/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/156:00 pmORD - TRS
2 stops45h 55mTAP AIR PORTUGAL
Fri 8/2211:15 amTRS - ORD
2 stops36h 15mTAP AIR PORTUGAL
Deal found 7/1$837
This Lufthansa deal was found by Cheapflights users on 7/2. 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.
Wed 12/310:35 pmORD - TRS
1 stop17h 10mLufthansa
Sun 12/72:45 pmTRS - ORD
1 stop12h 20mLufthansa
Deal found 7/2$902
This Booking.com deal was found by Cheapflights users on 6/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/137:25 pmORD - TRS
2 stops16h 05mIcelandair
Wed 8/2011:15 amTRS - ORD
2 stops17h 00mIcelandair
Deal found 6/30$957
This Turkish Airlines deal was found by Cheapflights users on 7/1. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:20 pmORD - TRS
2 stops39h 10mTurkish Airlines
Sun 12/711:15 amTRS - ORD
2 stops53h 50mTurkish Airlines
Deal found 7/1$1,008

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 July 3, 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

Fri 8/15

7:15 pm-10:55 pm

2 stops44h 40m

Trieste Ronchi dei Legionari

Fri 8/22

3:15 pm-4:10 pm

2 stops31h 55m

$687

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Mon 9/22

3:00 pm-10:25 am

1 stop12h 25m

Trieste Ronchi dei Legionari

Mon 9/29

6:35 am-1:10 pm

1 stop13h 35m

$773

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Fri 8/15

6:00 pm-10:55 pm

2 stops45h 55m

Trieste Ronchi dei Legionari

Fri 8/22

11:15 am-4:30 pm

2 stops36h 15m

$837

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Wed 12/3

10:35 pm-10:45 pm

1 stop17h 10m

Trieste Ronchi dei Legionari

Sun 12/7

2:45 pm-8:05 pm

1 stop12h 20m

$902

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Wed 8/13

7:25 pm-6:30 pm

2 stops16h 05m

Trieste Ronchi dei Legionari

Wed 8/20

11:15 am-9:15 pm

2 stops17h 00m

$957

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Wed 12/3

8:20 pm-6:30 pm

2 stops39h 10m

Trieste Ronchi dei Legionari

Sun 12/7

11:15 am-10:05 am

2 stops53h 50m

$1,008

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sat 8/16

3:00 pm-10:25 am

1 stop12h 25m

$546

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sat 8/16

6:15 pm-10:55 pm

2 stops45h 40m

$559

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Thu 10/16

11:25 am-6:35 pm

2 stops24h 10m

$639

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Thu 10/16

4:00 pm-2:05 pm

1 stop15h 05m

$665

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 12 results
1
2

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.

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 July 3, 2025.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Trieste, such as Emirates, Austrian Airlines, and TAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,287 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,287 reviews
Emirates
8.1
Very good
3,287 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Austrian Airlines
7.6
Good
809 reviews
Emirates
8.1
Very good
3,287 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
TAP AIR PORTUGAL
7.1
Good
1,908 reviews
Emirates
8.1
Very good
3,287 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Icelandair
7.0
Good
514 reviews
Emirates
8.1
Very good
3,287 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Lufthansa
6.8
Okay
7,207 reviews
Emirates
8.1
Very good
3,287 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Trieste round-trip?

    Our cheapest airline available from Chicago O'Hare Intl Airport to Trieste is ITA Airways. Our recent data shows that you can find tickets from as low as $773 on this airline. Additional options worth looking into are TAP AIR PORTUGAL and Icelandair, starting at $837 and $957 round-trip.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Trieste one-way?

    One-way options have recently been found by users for as low as $546 on ITA Airways. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $559 and Austrian Airlines from $1,284 one-way.

  • 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.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Udine

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for O'Hare Intl to Trieste

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Vicenza flights
Midway to Vicenza flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.