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Cheap flights from Chicago O'Hare Intl Airport to Trieste from $701

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Trieste departing on 4/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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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.
Multiple Airlines Logo
6:00 pm - 6:30 pm
ORD
-
TRS
41h 30m
2 stops
Multiple Airlines Logo
7:15 pm - 4:00 pm
TRS
-
ORD
51h 45m
2 stops
$701Multiple Airlines
Sun, Apr 5 - Wed, Apr 15
Multiple Airlines Logo
6:00 pm - 6:30 pm
ORD
-
TRS
41h 30m
2 stops
Multiple Airlines Logo
7:15 pm - 4:00 pm
TRS
-
ORD
51h 45m
2 stops
$702Multiple Airlines
Sun, Apr 5 - Wed, Apr 15
TAP AIR PORTUGAL Logo
6:15 pm - 10:55 pm
ORD
-
TRS
21h 40m
2 stops
TAP AIR PORTUGAL Logo
3:15 pm - 4:00 pm
TRS
-
ORD
31h 45m
2 stops
$714TAP AIR PORTUGAL
Sat, Apr 4 - Thu, Apr 16
TAP AIR PORTUGAL Logo
6:00 pm - 6:30 pm
ORD
-
TRS
41h 30m
2 stops
TAP AIR PORTUGAL Logo
11:15 am - 4:00 pm
TRS
-
ORD
35h 45m
2 stops
$724TAP AIR PORTUGAL
Sun, Apr 5 - Tue, Apr 14
TAP AIR PORTUGAL Logo
6:15 pm - 10:55 pm
ORD
-
TRS
21h 40m
2 stops
TAP AIR PORTUGAL Logo
6:35 am - 4:00 pm
TRS
-
ORD
40h 25m
2 stops
$734TAP AIR PORTUGAL
Sat, Apr 4 - Sat, Apr 18
TAP AIR PORTUGAL Logo
6:00 pm - 6:30 pm
ORD
-
TRS
41h 30m
2 stops
TAP AIR PORTUGAL Logo
6:35 am - 4:00 pm
TRS
-
ORD
40h 25m
2 stops
$744TAP AIR PORTUGAL
Sun, Apr 5 - Sat, Apr 18
TAP AIR PORTUGAL Logo
6:15 pm - 10:55 pm
ORD
-
TRS
21h 40m
2 stops
TAP AIR PORTUGAL Logo
11:15 am - 4:15 pm
TRS
-
ORD
36h 00m
2 stops
$764TAP AIR PORTUGAL
Sat, Apr 4 - Fri, Apr 17
Icelandair Logo
7:25 pm - 6:30 pm
ORD
-
TRS
16h 05m
2 stops
Icelandair Logo
11:15 am - 9:25 pm
TRS
-
ORD
17h 10m
2 stops
$771Icelandair
Tue, Apr 7 - Fri, Apr 17
Icelandair Logo
7:25 pm - 6:30 pm
ORD
-
TRS
16h 05m
2 stops
Icelandair Logo
11:15 am - 9:25 pm
TRS
-
ORD
17h 10m
2 stops
$772Icelandair
Tue, Apr 7 - Fri, Apr 17
TAP AIR PORTUGAL Logo
6:00 pm - 6:30 pm
ORD
-
TRS
41h 30m
2 stops
TAP AIR PORTUGAL Logo
6:35 am - 4:15 pm
TRS
-
ORD
40h 40m
2 stops
$774TAP AIR PORTUGAL
Sun, Apr 5 - Fri, Apr 17

ITA Airways flights from Chicago O'Hare Intl Airport to Trieste

Our best ITA Airways deals on Chicago O'Hare Intl Airport to Trieste flight tickets
ITA Airways
Apr 6
ORD9:15 amChicago O'Hare Intl
22h 15m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
Apr 15
TRS6:35 amTrieste Ronchi dei Legionari
18h 48m
2 stops
ORD6:23 pmChicago O'Hare Intl
$858
ITA Airways
Apr 6
ORD9:15 amChicago O'Hare Intl
18h 10m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Apr 16
TRS6:35 amTrieste Ronchi dei Legionari
21h 00m
2 stops
ORD8:35 pmChicago O'Hare Intl
$879
ITA Airways
Mar 4
ORD11:05 amChicago O'Hare Intl
20h 20m
2 stops
TRS2:25 pmTrieste Ronchi dei Legionari
Mar 8
TRS6:35 amTrieste Ronchi dei Legionari
19h 47m
2 stops
ORD7:22 pmChicago O'Hare Intl
$898

Icelandair flights from Chicago O'Hare Intl Airport to Trieste

Our best Icelandair deals on Chicago O'Hare Intl Airport to Trieste flight tickets
Icelandair
Apr 7
ORD7:25 pmChicago O'Hare Intl
16h 05m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Apr 17
TRS11:15 amTrieste Ronchi dei Legionari
17h 10m
2 stops
ORD9:25 pmChicago O'Hare Intl
$771
Icelandair
Apr 7
ORD7:25 pmChicago O'Hare Intl
16h 05m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Apr 17
TRS11:15 amTrieste Ronchi dei Legionari
17h 10m
2 stops
ORD9:25 pmChicago O'Hare Intl
$772
Icelandair
Apr 6
ORD7:25 pmChicago O'Hare Intl
16h 05m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Apr 17
TRS11:15 amTrieste Ronchi dei Legionari
17h 10m
2 stops
ORD9:25 pmChicago O'Hare Intl
$838

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Trieste that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 5, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sun 4/5

6:00 pm-6:30 pm

2 stops41h 30m

Trieste Ronchi dei Legionari

Wed 4/15

7:15 pm-4:00 pm

2 stops51h 45m

$701

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sun 4/5

6:00 pm-6:30 pm

2 stops41h 30m

Trieste Ronchi dei Legionari

Wed 4/15

7:15 pm-4:00 pm

2 stops51h 45m

$702

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sat 4/4

6:15 pm-10:55 pm

2 stops21h 40m

Trieste Ronchi dei Legionari

Thu 4/16

3:15 pm-4:00 pm

2 stops31h 45m

$714

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sun 4/5

6:00 pm-6:30 pm

2 stops41h 30m

Trieste Ronchi dei Legionari

Tue 4/14

11:15 am-4:00 pm

2 stops35h 45m

$724

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sat 4/4

6:15 pm-10:55 pm

2 stops21h 40m

Trieste Ronchi dei Legionari

Sat 4/18

6:35 am-4:00 pm

2 stops40h 25m

$734

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sun 4/5

6:00 pm-6:30 pm

2 stops41h 30m

Trieste Ronchi dei Legionari

Sat 4/18

6:35 am-4:00 pm

2 stops40h 25m

$744

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sat 4/4

6:15 pm-10:55 pm

2 stops21h 40m

Trieste Ronchi dei Legionari

Fri 4/17

11:15 am-4:15 pm

2 stops36h 00m

$764

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Tue 4/7

7:25 pm-6:30 pm

2 stops16h 05m

Trieste Ronchi dei Legionari

Fri 4/17

11:15 am-9:25 pm

2 stops17h 10m

$771

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Tue 4/7

7:25 pm-6:30 pm

2 stops16h 05m

Trieste Ronchi dei Legionari

Fri 4/17

11:15 am-9:25 pm

2 stops17h 10m

$772

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sun 4/5

6:00 pm-6:30 pm

2 stops41h 30m

Trieste Ronchi dei Legionari

Fri 4/17

6:35 am-4:15 pm

2 stops40h 40m

$774

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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

Can stopping save me money on Chicago O'Hare Intl Airport to Trieste flights?

You could potentially save up to 10% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Trieste flight.

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

Fastest flight time

12h 35m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Trieste takes 12h 35m
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

  • 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 12h 35m.

  • 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
Udine
Grado

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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Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Turkish Airlines
Scandinavian Airlines
United Airlines
Lufthansa
Aer Lingus
ITA Airways
TAP AIR PORTUGAL
Iberia
SWISS
British Airways
American Airlines