$521 Cheap Flights from Trieste (TRS) to Chicago (ORD)

View $521 flight on Tue, Jan 27, 2026Opens in a new window

Popular airlines from Friuli Venezia Giulia Airport (TRS) to Chicago O'Hare Intl. Airport (ORD)

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Cheap Flights from Trieste to Chicago (TRS-ORD)

Prices were available within the past 7 days and start at $521 for one-way flights and $722 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

ITA Airways
Wed, Dec 17 - Wed, Jan 7
TRS
Trieste
ORD
Chicago
$722 Roundtrip, found 4 days ago
$722
Roundtrip
found 4 days ago
Select ITA Airways flight, departing Wed, Dec 17 from Trieste to Chicago, returning Wed, Jan 7, priced at $722 found 4 days ago
ITA Airways
Wed, Dec 17 - Fri, Jan 2
TRS
Trieste
ORD
Chicago
$808 Roundtrip, found 2 days ago
$808
Roundtrip
found 2 days ago
Select ITA Airways flight, departing Wed, Dec 17 from Trieste to Chicago, returning Fri, Jan 2, priced at $808 found 2 days ago
Lufthansa
Tue, Dec 16 - Wed, Jan 7
TRS
Trieste
ORD
Chicago
$853 Roundtrip, found 2 days ago
$853
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Tue, Dec 16 from Trieste to Chicago, returning Wed, Jan 7, priced at $853 found 2 days ago
Air Dolomiti
Wed, Dec 17 - Wed, Jan 7
TRS
Trieste
ORD
Chicago
$853 Roundtrip, found 2 days ago
$853
Roundtrip
found 2 days ago
Select Air Dolomiti flight, departing Wed, Dec 17 from Trieste to Chicago, returning Wed, Jan 7, priced at $853 found 2 days ago
Icelandair
Wed, Dec 17 - Thu, Jan 8
TRS
Trieste
ORD
Chicago
$919 Roundtrip, found 4 days ago
$919
Roundtrip
found 4 days ago
Select Icelandair flight, departing Wed, Dec 17 from Trieste to Chicago, returning Thu, Jan 8, priced at $919 found 4 days ago
United
Fri, Dec 19 - Mon, Jan 5
TRS
Trieste
ORD
Chicago
$2,553 Roundtrip, found 4 days ago
$2,553
Roundtrip
found 4 days ago
Select United flight, departing Fri, Dec 19 from Trieste to Chicago, returning Mon, Jan 5, priced at $2,553 found 4 days ago

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Flights from Trieste (TRS) to Chicago (ORD)
Origin airport
Friuli Venezia Giulia
Destination airport
O'Hare Intl.
Roundtrip price
$722
Distance
4686 mi

Trieste to Chicago Flights

The cheapest times to fly from Trieste to Chicago

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Trieste to Chicago are during the month of December. You can find some of the cheapest flights from Trieste to Chicago with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Trieste to Chicago

Sunday is one of the best days to book for cheap flights from Trieste to Chicago: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Trieste to Chicago

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Trieste to Chicago in 2025. You can also book with separate airlines for your outbound and return journeys, from $521 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Trieste to Chicago flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Trieste to Chicago airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Friuli Venezia Giulia Airport (TRS) to O'Hare Intl. Airport (ORD) cost?
Snag a cheap one-way flight from $521 or cheap return flight from $722 from Friuli Venezia Giulia Airport (TRS) to O'Hare Intl. Airport (ORD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Friuli Venezia Giulia Airport (TRS) to O'Hare Intl. Airport (ORD)?
December is the least expensive month to fly from TRS to ORD. Planning your trip for the off-season is often the key to finding better fares.
What is the cheapest airline that flies from Friuli Venezia Giulia Airport (TRS) to O'Hare Intl. Airport (ORD)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest TRS to ORD flight.
How many flights per day from Friuli Venezia Giulia Airport (TRS) to O'Hare Intl. Airport (ORD)?
You'll have to book a flight with a layover when traveling from Friuli Venezia Giulia Airport (TRS) to O'Hare Intl. Airport (ORD). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from TRS to ORD?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary depending on various factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Friuli Venezia Giulia Airport (TRS) to O'Hare Intl. Airport (ORD)?
To land at O'Hare Intl. Airport (ORD) on time, pick a flight that takes off from Friuli Venezia Giulia Airport (TRS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Friuli Venezia Giulia Airport (TRS) to O'Hare Intl. Airport (ORD) last-minute?
Booking your plane ticket from TRS to ORD shortly before your getaway is usually more expensive. However, if there's some wiggle room with your departure times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a TRS to ORD flight and hotel package?
Compared with arranging flights and hotels separately, booking a TRS to ORD flight and hotel package with Expedia could result in significant savings. What's more, having everything in one convenient place will take the stress out of travel planning. Just secure your flights and choose from our extensive range of stays, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Friuli Venezia Giulia Airport (TRS) to O'Hare Intl. Airport (ORD)?
If you booked your TRS to ORD flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

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*Available to One Key members.