ORD - TRS

$365 Find Cheap Flights from Chicago to Trieste - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$780
Typical prices: $900-$1,402
ITA Airways
Tue 10/9Mon 10/15
ORD - TRS • 1 stop
Cheapest one-way
$365
Typical prices: $564-$679
Multiple Airlines
Thu 9/13
ORD - TRS • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Chicago O'Hare Intl Airport and Trieste. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
September
Cheapest • 37% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Rome Fiumicino (FCO)
Cheapest • Avg $866 (round-trip)
Frankfurt am Main (FRA)
Shortest trip • 13h 07m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Chicago to Trieste (ORD-TRS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Trieste

Fri, Oct 9 - Thu, Oct 15
ITA Airways Logo
3:00 pm - 2:30 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
16h 30m1 stop Rome Fiumicino
ITA Airways Logo
11:15 am - 1:10 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
32h 55m1 stop Rome Fiumicino
$780ITA Airways
Tue, Oct 6 - Tue, Oct 13
Lufthansa Logo
4:05 pm - 1:45 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
14h 40m1 stop Frankfurt am Main
Lufthansa Logo
2:45 pm - 7:55 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
12h 10m1 stop Frankfurt am Main
$882Lufthansa
Tue, Oct 6 - Tue, Oct 13
Multiple Airlines Logo
11:25 am - 10:35 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
28h 10m2 stops Istanbul Naples
Multiple Airlines Logo
11:20 am - 9:40 amTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
29h 20m2 stops Naples Istanbul
$883Multiple Airlines
Tue, Oct 6 - Tue, Oct 13
Lufthansa Logo
4:05 pm - 1:45 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
14h 40m1 stop Frankfurt am Main
Lufthansa Logo
2:45 pm - 7:55 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
12h 10m1 stop Frankfurt am Main
$884Lufthansa
Tue, Oct 6 - Tue, Oct 13
Multiple Airlines Logo
3:45 pm - 1:45 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
15h 00m2 stops Toronto Pearson Intl Frankfurt am Main
Multiple Airlines Logo
6:20 am - 12:55 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
13h 35m1 stop Frankfurt am Main
$887Multiple Airlines
Tue, Oct 6 - Tue, Oct 13
Multiple Airlines Logo
3:45 pm - 1:45 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
15h 00m2 stops Toronto Pearson Intl Frankfurt am Main
Multiple Airlines Logo
6:20 am - 7:55 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
20h 35m1 stop Frankfurt am Main
$891Multiple Airlines
Tue, Oct 6 - Tue, Oct 13
Lufthansa Logo
10:30 pm - 10:15 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
16h 45m1 stop Frankfurt am Main
Lufthansa Logo
6:20 am - 12:55 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
13h 35m1 stop Frankfurt am Main
$894Lufthansa
Tue, Oct 6 - Tue, Oct 13
Multiple Airlines Logo
5:35 pm - 1:45 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
13h 10m2 stops Toronto Pearson Intl Frankfurt am Main
Multiple Airlines Logo
6:20 am - 7:55 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
20h 35m1 stop Frankfurt am Main
$901Multiple Airlines
Mon, Oct 5 - Mon, Oct 12
Lufthansa Logo
10:30 pm - 10:25 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
16h 55m1 stop Frankfurt am Main
Lufthansa Logo
2:50 pm - 12:55 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
29h 05m1 stop Frankfurt am Main
$912Lufthansa
Mon, Oct 5 - Mon, Oct 12
Lufthansa Logo
4:05 pm - 1:55 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
14h 50m1 stop Frankfurt am Main
Lufthansa Logo
2:50 pm - 7:52 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
36h 02m2 stops Frankfurt am Main Detroit Metropolitan Wayne County
$916Lufthansa
Booking Insights

Price, demand and travel trends for Chicago O'Hare Intl Airport to Trieste flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Chicago O'Hare Intl Airport to Trieste with more confidence.

How much is a round-trip flight from Chicago O'Hare Intl Airport to Trieste?

Round-trip flights from Chicago O'Hare Intl Airport to Trieste start at $780. Prices are below average for this route right now, with typical round-trip fares ranging from $900 to $1,402. The lowest price found in the past 5 days was $780 on ITA Airways.

What's the cheapest day of the week to fly from Chicago O'Hare Intl Airport to Trieste?

Sunday is the cheapest day of the week to fly from Chicago O'Hare Intl Airport to Trieste, it is 24% cheaper than the average day. Thursday is the most expensive day with flight prices 33% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Chicago O'Hare Intl Airport to Trieste flights

Low season

January

Cheapest flight

$365
Most popular time to fly with an average 23% increase in price.
Flight from Chicago O'Hare Intl Airport to Trieste

When to book flights from Chicago to Trieste

Are your dates flexible? Find out the best times to travel from Chicago to Trieste based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Chicago O'Hare Intl Airport to Trieste flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Chicago O'Hare Intl Airport to Trieste?

    Flights from Chicago O'Hare Intl Airport to Trieste usually depart from Chicago O'Hare Intl (ORD) and arrive at Trieste Ronchi dei Legionari (TRS).

  • What cabin classes can I book on flights from Chicago O'Hare Intl Airport to Trieste?

    Two cabin classes are available on flights from Chicago O'Hare Intl Airport to Trieste:

    • Economy Class
    • Business Class

  • Which airports do connecting flights from Chicago O'Hare Intl Airport to Trieste pass through?

    Connecting flights from Chicago O'Hare Intl Airport to Trieste most commonly pass through:

    • Rome Fiumicino (FCO) - 55% of one-stop connections
    • Frankfurt am Main (FRA) - 45% of one-stop connections
    Together, these airports account for 100% of one-stop bookings on this route.

  • Can I save money by using flexible dates for flights from Chicago O'Hare Intl Airport to Trieste?

    On the Chicago O'Hare Intl Airport to Trieste route, being flexible with your departure day can save you up to 44%. Sunday is the cheapest day at $887 round-trip on average, while Thursday is the most expensive at $1,560: a $673 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

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

    A nonstop flight from Chicago O'Hare Intl Airport to Trieste takes 0h 00m, covering 4,683 miles.

  • Do I need a passport to fly from Chicago O'Hare Intl Airport to Trieste?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Chicago O'Hare Intl Airport to Trieste changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $780 to $3,084. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Chicago O'Hare Intl Airport to Trieste looking right now?

    One-way fares from Chicago O'Hare Intl Airport to Trieste are currently lower than usual. Average one-way flight prices are about $468, which is 28% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Chicago O'Hare Intl Airport to Trieste?

    Flying via Rome Fiumicino (FCO) gives the shortest average 1-stop total travel time at 12h 59m, compared with 13h 07m via Frankfurt am Main (FRA).

  • What is the time difference between Chicago O'Hare Intl Airport and Trieste?

    Trieste is 7 hours ahead of Chicago O'Hare Intl Airport (Central European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Trieste Ronchi dei Legionari Airport (TRS)?

    Trieste Ronchi dei Legionari Airport (TRS) hosts 5 major car rental companies, with daily rates starting from around $11 for economy cars. Top options include:
    · DRIVALIA
    · NOLEGGIARE
    · SICILY BY CAR
    · Europcar
    · Budget

  • How much should I expect to pay for a Chicago O'Hare Intl Airport to Trieste flight?

    Round-trip flights from Chicago O'Hare Intl Airport to Trieste range from $900 to $1,402, with an average of $1,166 over the past 12 months. Anything below $900 counts as a good deal.

Your guide to booking Chicago O'Hare Intl Airport to Trieste flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Sunday departure instead of Thursday. On this route, Sunday flights average $887 - about $673 less than Thursday (43% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Chicago O'Hare Intl Airport to Trieste trip for September. Fares historically average $740 round-trip in that month - typically $694 less than the most expensive month, which is June (based on the last 12 months).

Everything you need to know for your flight from Chicago to Trieste

Information on your arrival and departure airports

Chicago (ORD)
Trieste (TRS)