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.

$735 Cheap Flights from Trieste to Illinois in 2026

1 adult

0 bags

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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.

3:00 pm - 1:25 pm

TRS

ORD

29h 25m

1 stop

4:05 pm - 1:45 pm

ORD

TRS

14h 40m

1 stop

$735Lufthansa

Sun, Mar 1 - Tue, Mar 31

6:35 am - 9:57 pm

TRS

ORD

22h 22m

2 stops

2:12 pm - 6:30 pm

ORD

TRS

21h 18m

2 stops

$760KLM

Fri, Feb 20 - Tue, Feb 24

3:15 pm - 9:57 pm

TRS

ORD

37h 42m

2 stops

1:57 pm - 2:30 pm

ORD

TRS

17h 33m

2 stops

$772KLM

Sun, Mar 1 - Tue, Mar 31

3:00 pm - 11:15 am

TRS

ORD

27h 15m

2 stops

4:05 pm - 1:45 pm

ORD

TRS

14h 40m

1 stop

$781Lufthansa

Sun, Mar 1 - Tue, Mar 31

6:25 am - 1:25 pm

TRS

ORD

14h 00m

1 stop

9:50 pm - 10:40 pm

ORD

TRS

41h 50m

2 stops

$800Lufthansa

Fri, Feb 20 - Tue, Feb 24

6:25 am - 1:25 pm

TRS

ORD

14h 00m

1 stop

4:05 pm - 10:40 pm

ORD

TRS

23h 35m

1 stop

$913Multiple Airlines

Fri, Feb 20 - Tue, Feb 24

6:25 am - 5:20 pm

TRS

ORD

17h 55m

3 stops

6:30 pm - 10:40 pm

ORD

TRS

21h 10m

3 stops

$964Multiple Airlines

Fri, Feb 20 - Tue, Feb 24

6:35 am - 2:45 pm

TRS

ORD

39h 10m

2 stops

7:10 pm - 6:30 pm

ORD

TRS

40h 20m

2 stops

$978TAP AIR PORTUGAL

Sat, Feb 28 - Wed, Mar 4

6:35 am - 10:05 am

TRS

ORD

34h 30m

3 stops

8:40 am - 7:10 pm

ORD

TRS

27h 30m

3 stops

$1,030Multiple Airlines

Sun, Mar 1 - Tue, Mar 31

6:35 am - 10:05 am

TRS

ORD

34h 30m

3 stops

4:05 pm - 2:25 pm

ORD

TRS

15h 20m

2 stops

$1,062Multiple Airlines

Sun, Mar 1 - Tue, Mar 31

TAP AIR PORTUGAL flights from Trieste to Illinois

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

TAP AIR PORTUGAL

Feb 28

TRS6:35 amTrieste Ronchi dei Legionari

39h 10m

2 stops

ORD2:45 pmChicago O'Hare Intl

Mar 4

ORD7:10 pmChicago O'Hare Intl

40h 20m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

$978

TAP AIR PORTUGAL

Feb 28

TRS6:35 amTrieste Ronchi dei Legionari

39h 10m

2 stops

ORD2:45 pmChicago O'Hare Intl

Mar 4

ORD7:10 pmChicago O'Hare Intl

40h 20m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

$1,067

TAP AIR PORTUGAL

Feb 28

TRS3:15 pmTrieste Ronchi dei Legionari

30h 30m

2 stops

ORD2:45 pmChicago O'Hare Intl

Mar 4

ORD7:10 pmChicago O'Hare Intl

40h 20m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

$1,068

United Airlines flights from Trieste to Illinois

Our best United Airlines deals on Trieste to Illinois flight tickets

United Airlines

Feb 28

TRS6:35 amTrieste Ronchi dei Legionari

13h 35m

1 stop

ORD1:10 pmChicago O'Hare Intl

Mar 4

ORD3:45 pmChicago O'Hare Intl

11h 40m

1 stop

TRS10:25 amTrieste Ronchi dei Legionari

$1,735

United Airlines

Feb 28

TRS6:35 amTrieste Ronchi dei Legionari

18h 53m

2 stops

ORD6:28 pmChicago O'Hare Intl

Mar 4

ORD3:45 pmChicago O'Hare Intl

11h 40m

1 stop

TRS10:25 amTrieste Ronchi dei Legionari

$1,739

United Airlines

Feb 28

TRS6:35 amTrieste Ronchi dei Legionari

13h 35m

1 stop

ORD1:10 pmChicago O'Hare Intl

Mar 4

ORD3:45 pmChicago O'Hare Intl

11h 40m

1 stop

TRS10:25 amTrieste Ronchi dei Legionari

$1,835

Fly from

Fly to

Route

Depart

Return

Price

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Sun 3/1

3:00 pm-1:25 pm

1 stop29h 25m

Chicago O'Hare Intl

Tue 3/31

4:05 pm-1:45 pm

1 stop14h 40m

$735

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Fri 2/20

6:35 am-9:57 pm

2 stops22h 22m

Chicago O'Hare Intl

Tue 2/24

2:12 pm-6:30 pm

2 stops21h 18m

$760

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Sun 3/1

3:15 pm-9:57 pm

2 stops37h 42m

Chicago O'Hare Intl

Tue 3/31

1:57 pm-2:30 pm

2 stops17h 33m

$772

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Sun 3/1

3:00 pm-11:15 am

2 stops27h 15m

Chicago O'Hare Intl

Tue 3/31

4:05 pm-1:45 pm

1 stop14h 40m

$781

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Fri 2/20

6:25 am-1:25 pm

1 stop14h 00m

Chicago O'Hare Intl

Tue 2/24

9:50 pm-10:40 pm

2 stops41h 50m

$800

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Fri 2/20

6:25 am-1:25 pm

1 stop14h 00m

Chicago O'Hare Intl

Tue 2/24

4:05 pm-10:40 pm

1 stop23h 35m

$913

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Fri 2/20

6:25 am-5:20 pm

3 stops17h 55m

Chicago O'Hare Intl

Tue 2/24

6:30 pm-10:40 pm

3 stops21h 10m

$964

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Sat 2/28

6:35 am-2:45 pm

2 stops39h 10m

Chicago O'Hare Intl

Wed 3/4

7:10 pm-6:30 pm

2 stops40h 20m

$978

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Sun 3/1

6:35 am-10:05 am

3 stops34h 30m

Chicago O'Hare Intl

Tue 3/31

8:40 am-7:10 pm

3 stops27h 30m

$1,030

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Sun 3/1

6:35 am-10:05 am

3 stops34h 30m

Chicago O'Hare Intl

Tue 3/31

4:05 pm-2:25 pm

2 stops15h 20m

$1,062

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, ITA Airways, and Icelandair are the most popular carriers operating from Trieste Ronchi dei Legionari to Illinois

What airlines fly to Illinois?

United Airlines, Iberia and British Airways 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 35% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 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	29h 25m
Direct flights	None

The fastest flight from Trieste to Illinois takes 29h 25m

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.