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ORD - TRS

$398 Find Cheap Flights from Chicago to Trieste - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$810
Typical prices: $887-$1,387
KLM
Sat 2/3Thu 3/1
ORD - TRS • 2 stops
Cheapest one-way
$398
Typical prices: $564-$658
Multiple Airlines
Fri 11/16
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
August
Cheapest • 30% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Rome Fiumicino (FCO)
Cheapest • Avg $970 (round-trip)
Frankfurt am Main (FRA)
Shortest trip • 13h 10m (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

Wed, Feb 3 - Mon, Mar 1
KLM Logo
3:00 pm - 2:30 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
16h 30m2 stops Atlanta Hartsfield-Jackson Rome Fiumicino
KLM Logo
3:15 pm - 10:20 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
38h 05m2 stops Rome Fiumicino Atlanta Hartsfield-Jackson
$810KLM
Wed, Feb 3 - Sat, Feb 27
Multiple Airlines Logo
7:00 pm - 6:30 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
16h 30m2 stops Lisbon Humberto Delgado Rome Fiumicino
Multiple Airlines Logo
7:15 pm - 3:30 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
27h 15m2 stops Rome Fiumicino Lisbon Humberto Delgado
$832Multiple Airlines
Wed, Feb 3 - Sun, Feb 28
KLM Logo
1:30 pm - 2:30 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
18h 00m2 stops New York John F Kennedy Intl Rome Fiumicino
KLM Logo
6:35 am - 6:10 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
18h 35m2 stops Rome Fiumicino Boston Logan Intl
$860KLM
Thu, Feb 4 - Sat, Feb 27
KLM Logo
10:40 am - 2:30 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
20h 50m2 stops New York John F Kennedy Intl Rome Fiumicino
KLM Logo
3:15 pm - 9:37 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
37h 22m2 stops Rome Fiumicino Minneapolis St Paul
$910KLM
Wed, Feb 3 - Mon, Mar 1
Multiple Airlines Logo
9:00 pm - 7:55 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
15h 55m2 stops Dublin London Stansted
Multiple Airlines Logo
10:45 am - 6:20 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
14h 35m1 stop Dublin
$947Multiple Airlines
Thu, Feb 4 - Mon, Mar 1
Multiple Airlines Logo
11:45 am - 11:55 amORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
17h 10m2 stops Istanbul Tirana Rinas
Multiple Airlines Logo
10:45 am - 6:20 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
14h 35m1 stop Dublin
$988Multiple Airlines
Mon, Mar 1 - Fri, Mar 5
United Airlines Logo
8:55 am - 10:25 amORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
42h 30m2 stops Newark Rome Fiumicino
United Airlines Logo
6:35 am - 1:10 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
13h 35m1 stop Rome Fiumicino
$1,040United Airlines
Mon, Mar 1 - Fri, Mar 5
United Airlines Logo
3:45 pm - 10:25 amORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
35h 40m2 stops Newark Rome Fiumicino
United Airlines Logo
6:35 am - 6:33 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
18h 58m2 stops Rome Fiumicino Washington, D.C. Dulles Intl
$1,050United Airlines
Mon, Mar 1 - Fri, Mar 5
United Airlines Logo
8:00 pm - 10:25 amORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
31h 25m2 stops Newark Rome Fiumicino
United Airlines Logo
6:35 am - 1:10 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
13h 35m1 stop Rome Fiumicino
$1,052United Airlines
Mon, Mar 1 - Fri, Mar 5
United Airlines Logo
3:45 pm - 10:25 amORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
35h 40m2 stops Newark Rome Fiumicino
United Airlines Logo
6:35 am - 9:00 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
21h 25m2 stops Rome Fiumicino Newark
$1,056United Airlines
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 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 typically range from $887 to $1,387. The lowest price found in the past 5 days was $810, on KLM.

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

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Chicago O'Hare Intl Airport to Trieste. It’s 20% cheaper than the average day, while Thursday is the most expensive, with prices 41% higher.

Find deals

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

Low season

January

Cheapest flight

$398
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

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

    Only Economy Class is available on flights from Chicago O'Hare Intl Airport to Trieste.

  • 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 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.

  • 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 $887 to $1,387, with an average of $1,103 over the past 12 months. Anything below $887 counts as a good deal.

  • 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 $810 to $6,241. That means the highest observed fare was about 8x 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 $528, which is 19% below the typical average for this route.

  • 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 $10 for economy cars. Top options include:

    • DRIVALIA
    • NOLEGGIARE
    • SICILY BY CAR
    • Europcar
    • Budget

  • 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).

  • 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) - 63% of one-stop connections
    • Frankfurt am Main (FRA) - 37% of one-stop connections

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

    Yes. Flexible dates can save you up to 44% on flights from Chicago O'Hare Intl Airport to Trieste. Sunday is the cheapest departure day at $887 round-trip on average, while Thursday is the most expensive at $1,560, a difference of $673.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

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

    Flying via Frankfurt am Main (FRA) gives the shortest average 1-stop total travel time at 13h 10m, compared with 13h 56m via Rome Fiumicino (FCO).

  • 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.

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 are flexible, aim for a Sunday departure and avoid flying on Thursday. On this route, Sunday flights average $887, about $673 less than Thursday fares (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 August. Fares historically average $769 round-trip in that month - typically $665 less than the most expensive month, which is June (based on the last 12 months).

More options for your flight from Chicago to Trieste

Complete your trip to Trieste with a hotel stay or car rental

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