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Cheap flights from Indiana to Trieste from $403

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Indiana to Trieste departing on 9/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Find the cheapest flights from Indiana to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 pm - 10:25 am
ORD
-
TRS
33h 25m
2 stops
Multiple Airlines Logo
3:15 pm - 4:00 pm
TRS
-
ORD
31h 45m
2 stops
$984Multiple Airlines
Thu, Oct 1 - Thu, Oct 15
Multiple Airlines Logo
6:05 pm - 10:55 pm
ORD
-
TRS
21h 50m
2 stops
Multiple Airlines Logo
7:15 pm - 4:00 pm
TRS
-
ORD
27h 45m
2 stops
$1,007Multiple Airlines
Sat, Sep 5 - Tue, Sep 15
ITA Airways Logo
3:00 pm - 10:25 am
ORD
-
TRS
12h 25m
1 stop
ITA Airways Logo
7:15 pm - 1:10 pm
TRS
-
ORD
24h 55m
1 stop
$1,016ITA Airways
Wed, Sep 2 - Mon, Sep 14
Lufthansa Logo
10:30 pm - 10:15 pm
ORD
-
TRS
16h 45m
1 stop
Lufthansa Logo
6:10 am - 12:55 pm
TRS
-
ORD
13h 45m
1 stop
$1,017Lufthansa
Tue, Sep 1 - Fri, Sep 18
Lufthansa Logo
4:05 pm - 1:45 pm
ORD
-
TRS
14h 40m
1 stop
Lufthansa Logo
6:10 am - 8:15 pm
TRS
-
ORD
21h 05m
2 stops
$1,027Lufthansa
Tue, Sep 1 - Wed, Sep 16
Lufthansa Logo
10:30 pm - 10:25 pm
ORD
-
TRS
16h 55m
1 stop
Lufthansa Logo
2:50 pm - 12:55 pm
TRS
-
ORD
29h 05m
1 stop
$1,037Lufthansa
Mon, Sep 7 - Mon, Sep 14
Multiple Airlines Logo
10:56 am - 9:55 pm
ORD
-
TRS
27h 59m
2 stops
Multiple Airlines Logo
6:20 am - 7:22 pm
TRS
-
ORD
20h 02m
2 stops
$1,042Multiple Airlines
Fri, Sep 4 - Tue, Sep 15
KLM Logo
5:10 pm - 6:30 pm
MDW
-
TRS
18h 20m
2 stops
KLM Logo
6:35 am - 6:33 pm
TRS
-
MDW
18h 58m
2 stops
$1,425KLM
Wed, May 13 - Wed, May 20
KLM Logo
10:45 am - 2:30 pm
MDW
-
TRS
20h 45m
2 stops
KLM Logo
6:35 am - 6:33 pm
TRS
-
MDW
18h 58m
2 stops
$1,431KLM
Sat, May 30 - Sat, Jun 6
United Airlines Logo
1:48 pm - 10:25 am
SDF
-
TRS
14h 37m
2 stops
United Airlines Logo
6:35 am - 7:18 pm
TRS
-
SDF
18h 43m
2 stops
$2,972United Airlines
Thu, Jun 25 - Sat, Jul 4

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ITA Airways flights from Indiana to Trieste

Our best ITA Airways deals on Indiana to Trieste flight tickets
ITA Airways
Sep 2
ORD3:00 pmChicago O'Hare Intl
12h 25m
1 stop
TRS10:25 amTrieste Ronchi dei Legionari
Sep 14
TRS7:15 pmTrieste Ronchi dei Legionari
24h 55m
1 stop
ORD1:10 pmChicago O'Hare Intl
$1,016
ITA Airways
Sep 3
ORD3:00 pmChicago O'Hare Intl
16h 30m
1 stop
TRS2:30 pmTrieste Ronchi dei Legionari
Sep 17
TRS6:35 amTrieste Ronchi dei Legionari
13h 35m
1 stop
ORD1:10 pmChicago O'Hare Intl
$1,066
ITA Airways
Sep 3
ORD3:00 pmChicago O'Hare Intl
12h 25m
1 stop
TRS10:25 amTrieste Ronchi dei Legionari
Sep 13
TRS6:35 amTrieste Ronchi dei Legionari
13h 35m
1 stop
ORD1:10 pmChicago O'Hare Intl
$1,116

Lufthansa flights from Indiana to Trieste

Our best Lufthansa deals on Indiana to Trieste flight tickets
Lufthansa
Sep 1
ORD10:30 pmChicago O'Hare Intl
16h 45m
1 stop
TRS10:15 pmTrieste Ronchi dei Legionari
Sep 18
TRS6:10 amTrieste Ronchi dei Legionari
13h 45m
1 stop
ORD12:55 pmChicago O'Hare Intl
$1,017
Lufthansa
Sep 1
ORD4:05 pmChicago O'Hare Intl
14h 40m
1 stop
TRS1:45 pmTrieste Ronchi dei Legionari
Sep 16
TRS6:10 amTrieste Ronchi dei Legionari
21h 05m
2 stops
ORD8:15 pmChicago O'Hare Intl
$1,027
Lufthansa
Sep 7
ORD10:30 pmChicago O'Hare Intl
16h 55m
1 stop
TRS10:25 pmTrieste Ronchi dei Legionari
Sep 14
TRS2:50 pmTrieste Ronchi dei Legionari
29h 05m
1 stop
ORD12:55 pmChicago O'Hare Intl
$1,037

momondo Fare Finder

 
Customize your flight search to find flights from Indiana 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 April 18, 2026.
Use the filters below to find and compare flights from Indiana to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Thu 10/1

6:00 pm-10:25 am

2 stops33h 25m

Trieste Ronchi dei Legionari

Thu 10/15

3:15 pm-4:00 pm

2 stops31h 45m

$984

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sat 9/5

6:05 pm-10:55 pm

2 stops21h 50m

Trieste Ronchi dei Legionari

Tue 9/15

7:15 pm-4:00 pm

2 stops27h 45m

$1,007

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Wed 9/2

3:00 pm-10:25 am

1 stop12h 25m

Trieste Ronchi dei Legionari

Mon 9/14

7:15 pm-1:10 pm

1 stop24h 55m

$1,016
Quickest round-trip

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Tue 9/1

10:30 pm-10:15 pm

1 stop16h 45m

Trieste Ronchi dei Legionari

Fri 9/18

6:10 am-12:55 pm

1 stop13h 45m

$1,017

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Tue 9/1

4:05 pm-1:45 pm

1 stop14h 40m

Trieste Ronchi dei Legionari

Wed 9/16

6:10 am-8:15 pm

2 stops21h 05m

$1,027

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Mon 9/7

10:30 pm-10:25 pm

1 stop16h 55m

Trieste Ronchi dei Legionari

Mon 9/14

2:50 pm-12:55 pm

1 stop29h 05m

$1,037

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Fri 9/4

10:56 am-9:55 pm

2 stops27h 59m

Trieste Ronchi dei Legionari

Tue 9/15

6:20 am-7:22 pm

2 stops20h 02m

$1,042

ChicagoTrieste

MDW - TRS

MDWTRS

Chicago Midway

Wed 5/13

5:10 pm-6:30 pm

2 stops18h 20m

Trieste Ronchi dei Legionari

Wed 5/20

6:35 am-6:33 pm

2 stops18h 58m

$1,425

ChicagoTrieste

MDW - TRS

MDWTRS

Chicago Midway

Sat 5/30

10:45 am-2:30 pm

2 stops20h 45m

Trieste Ronchi dei Legionari

Sat 6/6

6:35 am-6:33 pm

2 stops18h 58m

$1,431

LouisvilleTrieste

SDF - TRS

SDFTRS

Louisville Intl

Thu 6/25

1:48 pm-10:25 am

2 stops14h 37m

Trieste Ronchi dei Legionari

Sat 7/4

6:35 am-7:18 pm

2 stops18h 43m

$2,972

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Trieste from

How to get the cheapest flight ticket from Indiana 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?

Delta, British Airways and United Airlines are the top three most popular airlines that fly to Trieste from Indiana according to our data. Delta 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 5 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

Cheap Indiana to Trieste flight deals and tips

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

Fastest flight time

14h 37m

Direct flights

None
The fastest flight from Indiana to Trieste takes 14h 37m
There are no direct flights from Indiana to Trieste. There are no popular flight routes from Indiana to Trieste.
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Frequently asked questions about flying from Indiana to Trieste

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Indiana to Trieste Ronchi dei Legionari Airport.

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

    The travel and health documents required for your trip to Trieste Ronchi dei Legionari Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Trieste Ronchi dei Legionari Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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 Indiana to Trieste?

It is quick and easy to find Indiana to Trieste flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Trieste that suits you.

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

Flights from Indiana to Trieste with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Indiana to Trieste flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Indiana to Trieste flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Fly your favorite airline to Trieste

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Delta
British Airways
United Airlines
Lufthansa
KLM