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Cheap flights from Indiana to Trieste from $339

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 10/1. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Indiana to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
ITA Airways Logo
3:00 pm - 10:25 am
ORD
-
TRS
12h 25m
1 stop
ITA Airways Logo
11:15 am - 1:10 pm
TRS
-
ORD
32h 55m
1 stop
$695ITA Airways
Wed, Aug 19 - Tue, Aug 25
ITA Airways Logo
3:00 pm - 6:30 pm
ORD
-
TRS
20h 30m
1 stop
ITA Airways Logo
6:35 am - 1:10 pm
TRS
-
ORD
13h 35m
1 stop
$738ITA Airways
Sun, Aug 16 - Sun, Aug 23
ITA Airways Logo
3:00 pm - 10:55 pm
ORD
-
TRS
24h 55m
1 stop
ITA Airways Logo
6:35 am - 1:10 pm
TRS
-
ORD
13h 35m
1 stop
$742ITA Airways
Sun, Aug 16 - Sun, Aug 23
KLM Logo
11:22 am - 6:30 pm
ORD
-
TRS
24h 08m
2 stops
KLM Logo
6:35 am - 11:57 pm
TRS
-
ORD
24h 22m
2 stops
$796KLM
Wed, Aug 19 - Tue, Aug 25
KLM Logo
12:46 pm - 6:30 pm
MDW
-
TRS
22h 44m
2 stops
KLM Logo
6:35 am - 10:36 pm
TRS
-
MDW
23h 01m
2 stops
$796KLM
Wed, Aug 19 - Tue, Aug 25
Multiple Airlines Logo
6:40 am - 10:25 pm
MDW
-
TRS
32h 45m
2 stops
Multiple Airlines Logo
6:15 am - 10:00 pm
TRS
-
MDW
22h 45m
2 stops
$978Multiple Airlines
Wed, Sep 2 - Thu, Sep 24
Multiple Airlines Logo
6:40 am - 10:25 pm
MDW
-
TRS
32h 45m
2 stops
Multiple Airlines Logo
6:15 am - 10:00 pm
TRS
-
MDW
22h 45m
2 stops
$979Multiple Airlines
Wed, Sep 2 - Thu, Sep 24
United Airlines Logo
7:30 am - 10:25 am
SDF
-
TRS
20h 55m
2 stops
United Airlines Logo
6:35 am - 11:15 pm
TRS
-
SDF
22h 40m
2 stops
$1,065United Airlines
Sun, Dec 6 - Wed, Dec 9
United Airlines Logo
7:30 am - 10:25 am
SDF
-
TRS
20h 55m
2 stops
United Airlines Logo
6:35 am - 11:15 pm
TRS
-
SDF
22h 40m
2 stops
$1,070United Airlines
Sun, Dec 6 - Wed, Dec 9
Lufthansa Logo
7:00 am - 1:55 pm
SDF
-
TRS
24h 55m
2 stops
Lufthansa Logo
6:10 am - 11:59 pm
TRS
-
SDF
23h 49m
2 stops
$1,199Lufthansa
Fri, Sep 25 - Sun, Oct 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
Aug 19
ORD3:00 pmChicago O'Hare Intl
12h 25m
1 stop
TRS10:25 amTrieste Ronchi dei Legionari
Aug 25
TRS11:15 amTrieste Ronchi dei Legionari
32h 55m
1 stop
ORD1:10 pmChicago O'Hare Intl
$695
ITA Airways
Aug 16
ORD3:00 pmChicago O'Hare Intl
24h 55m
1 stop
TRS10:55 pmTrieste Ronchi dei Legionari
Aug 23
TRS6:35 amTrieste Ronchi dei Legionari
13h 35m
1 stop
ORD1:10 pmChicago O'Hare Intl
$742
ITA Airways
Sep 2
ORD3:00 pmChicago O'Hare Intl
16h 30m
1 stop
TRS2:30 pmTrieste Ronchi dei Legionari
Sep 9
TRS7:15 pmTrieste Ronchi dei Legionari
24h 55m
1 stop
ORD1:10 pmChicago O'Hare Intl
$770

United Airlines flights from Indiana to Trieste

Our best United Airlines deals on Indiana to Trieste flight tickets
United Airlines
Dec 6
SDF7:30 amLouisville Intl
20h 55m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Dec 9
TRS6:35 amTrieste Ronchi dei Legionari
22h 40m
2 stops
SDF11:15 pmLouisville Intl
$1,065
United Airlines
Dec 6
SDF7:30 amLouisville Intl
20h 55m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Dec 9
TRS6:35 amTrieste Ronchi dei Legionari
22h 40m
2 stops
SDF11:15 pmLouisville Intl
$1,070
United Airlines
Sep 6
IND2:00 pmIndianapolis
14h 25m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Sep 13
TRS6:35 amTrieste Ronchi dei Legionari
18h 27m
2 stops
IND7:02 pmIndianapolis
$1,865

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 July 23, 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

Wed 8/19

3:00 pm-10:25 am

1 stop12h 25m

Trieste Ronchi dei Legionari

Tue 8/25

11:15 am-1:10 pm

1 stop32h 55m

$695
Quickest round-trip

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sun 8/16

3:00 pm-6:30 pm

1 stop20h 30m

Trieste Ronchi dei Legionari

Sun 8/23

6:35 am-1:10 pm

1 stop13h 35m

$738

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Sun 8/16

3:00 pm-10:55 pm

1 stop24h 55m

Trieste Ronchi dei Legionari

Sun 8/23

6:35 am-1:10 pm

1 stop13h 35m

$742

ChicagoTrieste

ORD - TRS

ORDTRS

Chicago O'Hare Intl

Wed 8/19

11:22 am-6:30 pm

2 stops24h 08m

Trieste Ronchi dei Legionari

Tue 8/25

6:35 am-11:57 pm

2 stops24h 22m

$796

ChicagoTrieste

MDW - TRS

MDWTRS

Chicago Midway

Wed 8/19

12:46 pm-6:30 pm

2 stops22h 44m

Trieste Ronchi dei Legionari

Tue 8/25

6:35 am-10:36 pm

2 stops23h 01m

$796

ChicagoTrieste

MDW - TRS

MDWTRS

Chicago Midway

Wed 9/2

6:40 am-10:25 pm

2 stops32h 45m

Trieste Ronchi dei Legionari

Thu 9/24

6:15 am-10:00 pm

2 stops22h 45m

$978

ChicagoTrieste

MDW - TRS

MDWTRS

Chicago Midway

Wed 9/2

6:40 am-10:25 pm

2 stops32h 45m

Trieste Ronchi dei Legionari

Thu 9/24

6:15 am-10:00 pm

2 stops22h 45m

$979

LouisvilleTrieste

SDF - TRS

SDFTRS

Louisville Intl

Sun 12/6

7:30 am-10:25 am

2 stops20h 55m

Trieste Ronchi dei Legionari

Wed 12/9

6:35 am-11:15 pm

2 stops22h 40m

$1,065

LouisvilleTrieste

SDF - TRS

SDFTRS

Louisville Intl

Sun 12/6

7:30 am-10:25 am

2 stops20h 55m

Trieste Ronchi dei Legionari

Wed 12/9

6:35 am-11:15 pm

2 stops22h 40m

$1,070

LouisvilleTrieste

SDF - TRS

SDFTRS

Louisville Intl

Fri 9/25

7:00 am-1:55 pm

2 stops24h 55m

Trieste Ronchi dei Legionari

Sun 10/4

6:10 am-11:59 pm

2 stops23h 49m

$1,199

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 is the cheapest airline that flies from Indiana to Trieste Ronchi dei Legionari?

Lufthansa and KLM are the most popular carriers operating from Indiana to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

British Airways, Delta and United Airlines are the top three most popular airlines that fly to Trieste from Indiana according to our data. British Airways is the first choice among our users, with 60% 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

12h 25m

Direct flights

None
The fastest flight from Indiana to Trieste takes 12h 25m
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
British Airways
Delta
United Airlines
American Airlines
KLM