When did momondo last update prices for flights from Trieste Ronchi dei Legionari Airport to Illinois?

Prices for flights from Trieste Ronchi dei Legionari Airport to Illinois refresh daily.

How old do you have to be to fly from Trieste Ronchi dei Legionari Airport to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Trieste Ronchi dei Legionari Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The required travel and health documents for your Illinois 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 Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$544 Cheap Flights from Trieste to Illinois in 2026

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Find the cheapest flights from Trieste to Illinois

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:30 am - 9:40 am

TRS

ORD

31h 10m

2 stops

11:25 am - 4:00 pm

ORD

TRS

21h 35m

2 stops

$709Multiple Airlines

Mon, Apr 13 - Fri, Apr 17

6:35 am - 9:26 pm

TRS

ORD

21h 51m

2 stops

5:04 pm - 6:30 pm

ORD

TRS

18h 26m

2 stops

$805KLM

Fri, Apr 10 - Tue, Apr 14

6:10 am - 12:55 pm

TRS

ORD

13h 45m

1 stop

10:30 pm - 10:15 pm

ORD

TRS

16h 45m

1 stop

$808Lufthansa

Fri, Apr 10 - Tue, Apr 14

6:35 am - 9:40 am

TRS

ORD

34h 05m

3 stops

11:25 am - 4:00 pm

ORD

TRS

21h 35m

2 stops

$814Multiple Airlines

Mon, Apr 13 - Fri, Apr 17

6:10 am - 11:00 am

TRS

ORD

11h 50m

1 stop

4:25 pm - 1:45 pm

ORD

TRS

14h 20m

2 stops

$842Lufthansa

Fri, Apr 10 - Tue, Apr 14

11:15 am - 1:20 pm

TRS

ORD

33h 05m

3 stops

9:40 pm - 2:30 pm

ORD

TRS

33h 50m

3 stops

$982Multiple Airlines

Fri, Apr 10 - Tue, Apr 14

6:10 am - 11:00 am

TRS

ORD

11h 50m

1 stop

6:15 pm - 1:55 pm

ORD

TRS

12h 40m

1 stop

$1,034Lufthansa

Mon, Apr 13 - Fri, Apr 17

6:35 am - 9:40 am

TRS

ORD

34h 05m

3 stops

11:25 am - 9:55 pm

ORD

TRS

27h 30m

3 stops

$1,047Multiple Airlines

Mon, Apr 13 - Fri, Apr 17

6:10 am - 2:50 pm

TRS

ORD

15h 40m

1 stop

9:30 pm - 9:55 pm

ORD

TRS

17h 25m

2 stops

$1,067Lufthansa

Mon, Apr 13 - Fri, Apr 17

3:15 pm - 4:00 pm

TRS

ORD

31h 45m

2 stops

6:00 pm - 6:30 pm

ORD

TRS

41h 30m

2 stops

$1,147TAP AIR PORTUGAL

Thu, Apr 16 - Sun, Apr 19

TAP AIR PORTUGAL flights from Trieste to Illinois

Our best TAP AIR PORTUGAL deals on Trieste to Illinois flight tickets

TAP AIR PORTUGAL

Apr 16

TRS3:15 pmTrieste Ronchi dei Legionari

31h 45m

2 stops

ORD4:00 pmChicago O'Hare Intl

Apr 19

ORD6:00 pmChicago O'Hare Intl

41h 30m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

$1,147

TAP AIR PORTUGAL

Apr 16

TRS3:15 pmTrieste Ronchi dei Legionari

31h 45m

2 stops

ORD4:00 pmChicago O'Hare Intl

Apr 19

ORD6:00 pmChicago O'Hare Intl

41h 30m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

$1,270

TAP AIR PORTUGAL

Apr 16

TRS3:15 pmTrieste Ronchi dei Legionari

31h 45m

2 stops

ORD4:00 pmChicago O'Hare Intl

Apr 19

ORD6:00 pmChicago O'Hare Intl

41h 30m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

$1,271

United Airlines flights from Trieste to Illinois

Our best United Airlines deals on Trieste to Illinois flight tickets

United Airlines

Apr 16

TRS6:35 amTrieste Ronchi dei Legionari

13h 30m

1 stop

ORD1:05 pmChicago O'Hare Intl

Apr 19

ORD8:11 pmChicago O'Hare Intl

55h 14m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

$1,536

United Airlines

Apr 16

TRS6:35 amTrieste Ronchi dei Legionari

13h 30m

1 stop

ORD1:05 pmChicago O'Hare Intl

Apr 19

ORD2:30 pmChicago O'Hare Intl

36h 55m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

$2,200

United Airlines

Apr 16

TRS6:35 amTrieste Ronchi dei Legionari

13h 30m

1 stop

ORD1:05 pmChicago O'Hare Intl

Apr 19

ORD11:40 amChicago O'Hare Intl

15h 45m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

$2,210

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Mon 4/13

9:30 am-9:40 am

2 stops31h 10m

Chicago O'Hare Intl

Fri 4/17

11:25 am-4:00 pm

2 stops21h 35m

$709

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Fri 4/10

6:35 am-9:26 pm

2 stops21h 51m

Chicago O'Hare Intl

Tue 4/14

5:04 pm-6:30 pm

2 stops18h 26m

$805

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Fri 4/10

6:10 am-12:55 pm

1 stop13h 45m

Chicago O'Hare Intl

Tue 4/14

10:30 pm-10:15 pm

1 stop16h 45m

$808

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Mon 4/13

6:35 am-9:40 am

3 stops34h 05m

Chicago O'Hare Intl

Fri 4/17

11:25 am-4:00 pm

2 stops21h 35m

$814

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Fri 4/10

6:10 am-11:00 am

1 stop11h 50m

Chicago O'Hare Intl

Tue 4/14

4:25 pm-1:45 pm

2 stops14h 20m

$842

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Fri 4/10

11:15 am-1:20 pm

3 stops33h 05m

Chicago O'Hare Intl

Tue 4/14

9:40 pm-2:30 pm

3 stops33h 50m

$982

Quickest round-trip

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Mon 4/13

6:10 am-11:00 am

1 stop11h 50m

Chicago O'Hare Intl

Fri 4/17

6:15 pm-1:55 pm

1 stop12h 40m

$1,034

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Mon 4/13

6:35 am-9:40 am

3 stops34h 05m

Chicago O'Hare Intl

Fri 4/17

11:25 am-9:55 pm

3 stops27h 30m

$1,047

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Mon 4/13

6:10 am-2:50 pm

1 stop15h 40m

Chicago O'Hare Intl

Fri 4/17

9:30 pm-9:55 pm

2 stops17h 25m

$1,067

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Thu 4/16

3:15 pm-4:00 pm

2 stops31h 45m

Chicago O'Hare Intl

Sun 4/19

6:00 pm-6:30 pm

2 stops41h 30m

$1,147

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Trieste to Illinois

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 airline that flies from Trieste Ronchi dei Legionari to Illinois?

TAP AIR PORTUGAL and ITA Airways are the most popular carriers operating from Trieste Ronchi dei Legionari to Illinois

What airlines fly to Illinois?

United Airlines, Iberia and Lufthansa are the top three most popular airlines that fly to Illinois from Trieste according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 3 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

Cheap Trieste to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Trieste to Illinois

Fastest flight time	31h 45m
Direct flights	None

The fastest flight from Trieste to Illinois takes 31h 45m

There are no direct flights from Trieste to Illinois. There are no popular flight routes from Trieste to Illinois.

Search flight deals

When did momondo last update prices for flights from Trieste Ronchi dei Legionari Airport to Illinois?
Prices for flights from Trieste Ronchi dei Legionari Airport to Illinois refresh daily.
How old do you have to be to fly from Trieste Ronchi dei Legionari Airport to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Trieste Ronchi dei Legionari Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois 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 Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Trieste to Illinois?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Trieste to Illinois. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Trieste to Illinois with flexible booking policies on momondo?

All flight searches from Trieste to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Trieste to Illinois?

momondo provides multiple filters to help you find the best flight to Illinois from Trieste. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Trieste to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Trieste to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.