How does KAYAK find such low prices on flights from Illinois to Trieste?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Trieste.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Trieste?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Trieste from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Trieste?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Trieste with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Trieste?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Trieste from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$398 CHEAP FLIGHTS from Illinois to Trieste

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Flight Deals

Cheap Flights from Illinois to Trieste

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

Round-trip

One-way

Recent round-trip flight deals from Illinois to Trieste

Wed, Feb 3 - Mon, Mar 1

3:00 pm - 2:30 pmORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

16h 30m2 stops Atlanta Hartsfield-Jackson Rome Fiumicino

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

7:00 pm - 6:30 pmORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

16h 30m2 stops Lisbon Humberto Delgado Rome Fiumicino

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

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

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 - Sun, Feb 28

11:10 am - 2:30 pmORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

20h 20m2 stops Atlanta Hartsfield-Jackson Rome Fiumicino

6:35 am - 6:10 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

18h 35m2 stops Rome Fiumicino Boston Logan Intl

$910KLM

Wed, Feb 3 - Mon, Mar 1

9:00 pm - 7:55 pmORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

15h 55m2 stops Dublin London Stansted

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

11:45 am - 11:55 amORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

17h 10m2 stops Istanbul Tirana Rinas

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

8:55 am - 10:25 amORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

42h 30m2 stops Newark Rome Fiumicino

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

3:45 pm - 10:25 amORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

35h 40m2 stops Newark Rome Fiumicino

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

8:00 pm - 10:25 amORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

31h 25m2 stops Newark Rome Fiumicino

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

3:45 pm - 10:25 amORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

35h 40m2 stops Newark Rome Fiumicino

6:35 am - 9:00 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

21h 25m2 stops Rome Fiumicino Newark

$1,056United Airlines

Useful Info

Cheapest flight	$398

Flight from Chicago to Trieste

How does KAYAK find such low prices on flights from Illinois to Trieste?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Trieste.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Trieste?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Trieste from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Trieste?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Trieste with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Trieste?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Trieste from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.