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Cheap flights from Chicago O'Hare Intl Airport to Trieste from $879

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Chicago O'Hare Intl Airport to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
1:30 pm - 2:30 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
18h 00m2 stops Atlanta Hartsfield-Jackson Rome Fiumicino
KLM Logo
3:15 pm - 8:53 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
36h 38m2 stops Rome Fiumicino Atlanta Hartsfield-Jackson
$879KLM
Mon, Nov 30 - Mon, Dec 7
TAP AIR PORTUGAL Logo
9:10 pm - 6:30 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
39h 20m2 stops Lisbon Humberto Delgado Rome Fiumicino
TAP AIR PORTUGAL Logo
6:35 am - 4:00 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
40h 25m2 stops Rome Fiumicino Lisbon Humberto Delgado
$913TAP AIR PORTUGAL
Sun, Mar 21 - Tue, Apr 6
TAP AIR PORTUGAL Logo
9:10 pm - 6:30 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
39h 20m2 stops Lisbon Humberto Delgado Rome Fiumicino
TAP AIR PORTUGAL Logo
6:35 am - 4:00 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
40h 25m2 stops Rome Fiumicino Lisbon Humberto Delgado
$913TAP AIR PORTUGAL
Sun, Mar 21 - Thu, Apr 8
Lufthansa Logo
9:30 pm - 1:55 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
33h 25m2 stops Detroit Metropolitan Wayne County Frankfurt am Main
Lufthansa Logo
6:00 am - 12:55 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
13h 55m1 stop Frankfurt am Main
$918Lufthansa
Sat, Mar 27 - Tue, Apr 6
Lufthansa Logo
9:30 pm - 1:55 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
33h 25m2 stops Detroit Metropolitan Wayne County Frankfurt am Main
Lufthansa Logo
2:40 pm - 7:55 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
12h 15m1 stop Frankfurt am Main
$918Lufthansa
Sat, Mar 27 - Fri, Apr 9
Lufthansa Logo
9:30 pm - 1:55 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
33h 25m2 stops Detroit Metropolitan Wayne County Frankfurt am Main
Lufthansa Logo
2:40 pm - 7:55 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
12h 15m1 stop Frankfurt am Main
$918Lufthansa
Sat, Mar 27 - Wed, Apr 7
Lufthansa Logo
9:30 pm - 1:55 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
33h 25m2 stops Detroit Metropolitan Wayne County Frankfurt am Main
Lufthansa Logo
2:40 pm - 7:55 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
12h 15m1 stop Frankfurt am Main
$918Lufthansa
Sat, Mar 27 - Thu, Apr 8
TAP AIR PORTUGAL Logo
9:10 pm - 6:30 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
39h 20m2 stops Lisbon Humberto Delgado Rome Fiumicino
TAP AIR PORTUGAL Logo
3:15 pm - 4:00 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
55h 45m2 stops Rome Fiumicino Lisbon Humberto Delgado
$920TAP AIR PORTUGAL
Sun, Mar 21 - Mon, Apr 5
TAP AIR PORTUGAL Logo
9:10 pm - 6:30 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
39h 20m2 stops Lisbon Humberto Delgado Rome Fiumicino
TAP AIR PORTUGAL Logo
3:15 pm - 4:00 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
55h 45m2 stops Rome Fiumicino Lisbon Humberto Delgado
$920TAP AIR PORTUGAL
Sun, Mar 21 - Wed, Apr 7
Lufthansa Logo
9:30 pm - 1:55 pmORD  Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari
33h 25m2 stops Detroit Metropolitan Wayne County Frankfurt am Main
Lufthansa Logo
6:00 am - 8:03 pmTRS  Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl
21h 03m2 stops Frankfurt am Main Detroit Metropolitan Wayne County
$922Lufthansa
Sat, Mar 27 - Wed, Apr 7

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United Airlines flights from Chicago O'Hare Intl Airport to Trieste

Our best United Airlines deals on Chicago O'Hare Intl Airport to Trieste flight tickets
United Airlines
Mar 1
ORD3:40 pmChicago O'Hare Intl
11h 45m
1 stop
TRS10:25 amTrieste Ronchi dei Legionari
Mar 5
TRS6:35 amTrieste Ronchi dei Legionari
13h 35m
1 stop
ORD1:10 pmChicago O'Hare Intl
$1,045
United Airlines
Mar 1
ORD10:45 amChicago O'Hare Intl
16h 40m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Mar 5
TRS6:35 amTrieste Ronchi dei Legionari
13h 35m
1 stop
ORD1:10 pmChicago O'Hare Intl
$1,049
United Airlines
Mar 1
ORD8:00 pmChicago O'Hare Intl
31h 25m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Mar 5
TRS6:35 amTrieste Ronchi dei Legionari
13h 35m
1 stop
ORD1:10 pmChicago O'Hare Intl
$1,052

TAP AIR PORTUGAL flights from Chicago O'Hare Intl Airport to Trieste

Our best TAP AIR PORTUGAL deals on Chicago O'Hare Intl Airport to Trieste flight tickets
TAP AIR PORTUGAL
Mar 21
ORD9:10 pmChicago O'Hare Intl
39h 20m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Apr 6
TRS6:35 amTrieste Ronchi dei Legionari
40h 25m
2 stops
ORD4:00 pmChicago O'Hare Intl
$913
TAP AIR PORTUGAL
Mar 21
ORD9:10 pmChicago O'Hare Intl
39h 20m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Apr 5
TRS3:15 pmTrieste Ronchi dei Legionari
55h 45m
2 stops
ORD4:00 pmChicago O'Hare Intl
$920
TAP AIR PORTUGAL
Mar 21
ORD9:10 pmChicago O'Hare Intl
39h 20m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Apr 10
TRS11:15 amTrieste Ronchi dei Legionari
35h 45m
2 stops
ORD4:00 pmChicago O'Hare Intl
$933

momondo Fare Finder

 
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Trieste that are best for you.

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Cheapest round-trip

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Mon 11/30

1:30 pm-2:30 pm

2 stops18h 00m

Trieste Ronchi dei Legionari

Mon 12/7

3:15 pm-8:53 pm

2 stops36h 38m

$879

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sun 3/21

9:10 pm-6:30 pm

2 stops39h 20m

Trieste Ronchi dei Legionari

Tue 4/6

6:35 am-4:00 pm

2 stops40h 25m

$913

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sun 3/21

9:10 pm-6:30 pm

2 stops39h 20m

Trieste Ronchi dei Legionari

Thu 4/8

6:35 am-4:00 pm

2 stops40h 25m

$913

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sat 3/27

9:30 pm-1:55 pm

2 stops33h 25m

Trieste Ronchi dei Legionari

Tue 4/6

6:00 am-12:55 pm

1 stop13h 55m

$918
Quickest round-trip

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sat 3/27

9:30 pm-1:55 pm

2 stops33h 25m

Trieste Ronchi dei Legionari

Fri 4/9

2:40 pm-7:55 pm

1 stop12h 15m

$918

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sat 3/27

9:30 pm-1:55 pm

2 stops33h 25m

Trieste Ronchi dei Legionari

Wed 4/7

2:40 pm-7:55 pm

1 stop12h 15m

$918

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sat 3/27

9:30 pm-1:55 pm

2 stops33h 25m

Trieste Ronchi dei Legionari

Thu 4/8

2:40 pm-7:55 pm

1 stop12h 15m

$918

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sun 3/21

9:10 pm-6:30 pm

2 stops39h 20m

Trieste Ronchi dei Legionari

Mon 4/5

3:15 pm-4:00 pm

2 stops55h 45m

$920

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sun 3/21

9:10 pm-6:30 pm

2 stops39h 20m

Trieste Ronchi dei Legionari

Wed 4/7

3:15 pm-4:00 pm

2 stops55h 45m

$920

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Sat 3/27

9:30 pm-1:55 pm

2 stops33h 25m

Trieste Ronchi dei Legionari

Wed 4/7

6:00 am-8:03 pm

2 stops21h 03m

$922

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Trieste from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Trieste

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 airlines fly to Trieste?

United Airlines, Turkish Airlines and Lufthansa are the top three most popular airlines that fly to Trieste from Chicago O'Hare Intl Airport according to our data. United Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 9 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

When to book flights from Chicago O'Hare Intl Airport to Trieste

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Trieste according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Trieste (ORD to TRS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Trieste

Best Price Found

$879

Fastest flight time

11h 45m

Direct flights

None
The best flight deal from Chicago O'Hare Intl Airport to Trieste found on momondo in the last 72 hours is $879
The fastest flight from Chicago O'Hare Intl Airport to Trieste takes 11h 45m
There are no direct flights from Chicago O'Hare Intl Airport to Trieste. There are no popular flight routes from Chicago O'Hare Intl Airport to Trieste.
Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Trieste

  • How far is Chicago O'Hare Intl to Trieste Ronchi dei Legionari by plane?

    Trieste Ronchi dei Legionari is 4701.3 mi away from Chicago O'Hare Intl. A reasonable flight in good conditions will take 11h 45m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Trieste Ronchi dei Legionari Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Trieste Ronchi dei Legionari Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Trieste Ronchi dei Legionari Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Trieste Ronchi dei Legionari Airport.

  • What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?

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

Traveling to a place near Trieste?

Book flights to Trieste if you plan to visit one of these locations
Grado
Udine

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Trieste. momondo saves you time and could save you money on your trip.

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

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

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

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

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

Yes momondo offers price alerts on flights to Trieste from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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