Cheap flights from Chicago O'Hare Intl Airport to Trieste from $542
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Trieste departing on 7/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Chicago O'Hare Intl Airport to Trieste
Cheap round-trip flights
Cheap one-way flights
Turkish Airlines flights from Chicago O'Hare Intl Airport to Trieste
Our best Turkish Airlines deals on Chicago O'Hare Intl Airport to Trieste flight tickets
Lufthansa flights from Chicago O'Hare Intl Airport to Trieste
Our best Lufthansa deals on Chicago O'Hare Intl Airport to Trieste flight tickets
See travel insights to Trieste from
How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Trieste
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Trieste?
The cheapest day to depart on your flight to Trieste is on a Thursday when prices can be found for as low as $915. This is often the case because there is less demand to fly during this day of the week. Flights from Chicago O'Hare Intl Airport to Trieste on a Saturday will generally be more expensive and average around $1,563. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Trieste?
Our most recent data shows that the best time of day to fly to Trieste is in the afternoon. Flights from Chicago O'Hare Intl Airport to Trieste during this time can be as low as $1,118. Flights to Trieste are more costly in the afternoon, with an average ticket price of $1,118. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest airline that flies from Chicago O'Hare Intl to Trieste Ronchi dei Legionari?
ITA Airways, Lufthansa, and TAP AIR PORTUGAL are the most popular carriers operating from Chicago O'Hare Intl to Trieste Ronchi dei Legionari
What airlines fly to Trieste?
Turkish Airlines, ITA Airways and American Airlines are the top three most popular airlines that fly to Trieste from Chicago O'Hare Intl Airport according to our data. Turkish Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 14 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.
When to book flights from Chicago O'Hare Intl Airport to Trieste
Cheap Chicago O'Hare Intl Airport to Trieste (ORD to TRS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Trieste
How far is Chicago O'Hare Intl to Trieste Ronchi dei Legionari by plane?
Trieste Ronchi dei Legionari is 4701.3 mi away from Chicago O'Hare Intl. A reasonable flight in good conditions will take 12h 25m.
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Trieste Ronchi dei Legionari Airport?
Prices for flights from Chicago O'Hare Intl Airport to Trieste Ronchi dei Legionari Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Trieste Ronchi dei Legionari Airport?
As of April 2025, there is 1 operator available to choose from for flights from Chicago O'Hare Intl Airport to Trieste Ronchi dei Legionari Airport.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Trieste Ronchi dei Legionari Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Trieste Ronchi dei Legionari Airport.
What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?
The required travel and health documents for your Trieste Ronchi dei Legionari Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Trieste Ronchi dei Legionari Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Chicago O'Hare Intl Airport to Trieste?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Chicago O'Hare Intl Airport to Trieste is ITA Airways (100% of total bookings).
Best airlines flying from Chicago O'Hare Intl Airport to Trieste
Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Trieste with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $739 | Free Cancellation | Rating 6.7 964 reviews |
Traveling to a place near Trieste?
Book flights to Trieste if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Chicago to Trieste?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Trieste. momondo saves you time and could save you money on your trip.
Can I find flights from Chicago to Trieste with flexible booking policies on momondo?
All flight searches from Chicago to Trieste on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Chicago to Trieste?
momondo provides multiple filters to help you find the best flight to Trieste from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Chicago to Trieste right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Trieste from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.