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Cheap flights from New York LaGuardia Airport to Trieste from $590

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New York LaGuardia Airport to Trieste departing on 2/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from New York LaGuardia Airport to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:35 pm - 2:00 pm
LGA
-
TRS
38h 25m2 stops
Multiple Airlines Logo
3:00 pm - 2:43 pm
TRS
-
LGA
29h 43m2 stops
$610Multiple Airlines
Sun, Jan 18 - Sun, Jan 25
Multiple Airlines Logo
4:20 pm - 10:55 pm
LGA
-
TRS
24h 35m3 stops
Multiple Airlines Logo
6:35 am - 7:02 pm
TRS
-
LGA
18h 27m3 stops
$727Multiple Airlines
Fri, Jan 16 - Fri, Jan 23
Multiple Airlines Logo
3:20 pm - 6:30 pm
LGA
-
TRS
21h 10m3 stops
Multiple Airlines Logo
3:15 pm - 7:02 pm
TRS
-
LGA
33h 47m3 stops
$759Multiple Airlines
Sun, Jan 18 - Sun, Jan 25
Lufthansa Logo
5:35 pm - 2:05 pm
LGA
-
TRS
38h 30m2 stops
Lufthansa Logo
11:15 am - 9:33 pm
TRS
-
LGA
40h 18m2 stops
$928Lufthansa
Wed, Feb 11 - Sun, Feb 15
Multiple Airlines Logo
9:59 am - 12:20 pm
LGA
-
TRS
44h 21m3 stops
Multiple Airlines Logo
9:05 pm - 8:00 pm
TRS
-
LGA
28h 55m3 stops
$1,496Multiple Airlines
Tue, Dec 16 - Sun, Jan 4
Multiple Airlines Logo
3:30 pm - 10:55 pm
LGA
-
TRS
25h 25m3 stops
Multiple Airlines Logo
6:15 am - 7:03 pm
TRS
-
LGA
18h 48m3 stops
$1,545Multiple Airlines
Fri, Jan 2 - Tue, Jan 6
United Airlines Logo
3:20 pm - 10:25 am
LGA
-
TRS
14h 05m2 stops
United Airlines Logo
6:35 am - 7:03 pm
TRS
-
LGA
17h 28m2 stops
$1,547United Airlines
Wed, Mar 11 - Fri, Mar 20
Multiple Airlines Logo
11:30 am - 10:35 pm
LGA
-
TRS
29h 05m3 stops
Multiple Airlines Logo
9:05 pm - 10:33 pm
TRS
-
LGA
31h 28m2 stops
$1,649Multiple Airlines
Tue, Dec 16 - Sun, Jan 4
United Airlines Logo
12:40 pm - 10:25 am
LGA
-
TRS
39h 45m2 stops
United Airlines Logo
6:35 am - 6:44 pm
TRS
-
LGA
18h 09m2 stops
$1,695United Airlines
Fri, Jan 16 - Fri, Jan 23
Multiple Airlines Logo
8:50 am - 2:00 pm
LGA
-
TRS
23h 10m2 stops
Multiple Airlines Logo
6:25 am - 9:53 am
TRS
-
LGA
33h 28m2 stops
$1,788Multiple Airlines
Tue, Dec 16 - Fri, Jan 2

United Airlines flights from New York LaGuardia Airport to Trieste

Our best United Airlines deals on New York LaGuardia Airport to Trieste flight tickets
United Airlines
Mar 11
LGA3:20 pmNew York LaGuardia
14h 05m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Mar 20
TRS6:35 amTrieste Ronchi dei Legionari
17h 28m
2 stops
LGA7:03 pmNew York LaGuardia
$1,547
Find similar
United Airlines
Jan 16
LGA12:40 pmNew York LaGuardia
39h 45m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Jan 23
TRS6:35 amTrieste Ronchi dei Legionari
18h 09m
2 stops
LGA6:44 pmNew York LaGuardia
$1,695
Find similar
United Airlines
Dec 7
LGA1:15 pmNew York LaGuardia
15h 10m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Jan 18
TRS6:35 amTrieste Ronchi dei Legionari
21h 58m
2 stops
LGA10:33 pmNew York LaGuardia
$2,017
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from New York LaGuardia 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 December 4, 2025.
Use the filters below to find and compare flights from New York LaGuardia Airport to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Sun 1/18

5:35 pm-2:00 pm

2 stops38h 25m

Trieste Ronchi dei Legionari

Sun 1/25

3:00 pm-2:43 pm

2 stops29h 43m

$610

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Fri 1/16

4:20 pm-10:55 pm

3 stops24h 35m

Trieste Ronchi dei Legionari

Fri 1/23

6:35 am-7:02 pm

3 stops18h 27m

$727

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Sun 1/18

3:20 pm-6:30 pm

3 stops21h 10m

Trieste Ronchi dei Legionari

Sun 1/25

3:15 pm-7:02 pm

3 stops33h 47m

$759

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Wed 2/11

5:35 pm-2:05 pm

2 stops38h 30m

Trieste Ronchi dei Legionari

Sun 2/15

11:15 am-9:33 pm

2 stops40h 18m

$928

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Tue 12/16

9:59 am-12:20 pm

3 stops44h 21m

Trieste Ronchi dei Legionari

Sun 1/4

9:05 pm-8:00 pm

3 stops28h 55m

$1,496

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Fri 1/2

3:30 pm-10:55 pm

3 stops25h 25m

Trieste Ronchi dei Legionari

Tue 1/6

6:15 am-7:03 pm

3 stops18h 48m

$1,545

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Wed 3/11

3:20 pm-10:25 am

2 stops14h 05m

Trieste Ronchi dei Legionari

Fri 3/20

6:35 am-7:03 pm

2 stops17h 28m

$1,547

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Tue 12/16

11:30 am-10:35 pm

3 stops29h 05m

Trieste Ronchi dei Legionari

Sun 1/4

9:05 pm-10:33 pm

2 stops31h 28m

$1,649

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Fri 1/16

12:40 pm-10:25 am

2 stops39h 45m

Trieste Ronchi dei Legionari

Fri 1/23

6:35 am-6:44 pm

2 stops18h 09m

$1,695

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Tue 12/16

8:50 am-2:00 pm

2 stops23h 10m

Trieste Ronchi dei Legionari

Fri 1/2

6:25 am-9:53 am

2 stops33h 28m

$1,788

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Trieste from

How to get the cheapest flight ticket from New York LaGuardia 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 is the cheapest day to depart on your flight to Trieste?

The cheapest day to depart on your flight to Trieste is on a Saturday when prices can be found for as low as $871. This is often the case because there is less demand to fly during this day of the week. Flights from New York LaGuardia Airport to Trieste on a Friday will generally be more expensive and average around $1,279. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Trieste?

Our most recent data shows that the best time of day to fly to Trieste is in the afternoon. Flights from New York LaGuardia Airport to Trieste during this time can be as low as $1,020. Flights to Trieste are more costly in the evening, with an average ticket price of $1,116. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from New York LaGuardia Airport to Trieste

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

Cheap New York LaGuardia Airport to Trieste (LGA to TRS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New York LaGuardia Airport to Trieste

Fastest flight time

14h 05m

Direct flights

None
The fastest flight from New York LaGuardia Airport to Trieste takes 14h 05m
There are no direct flights from New York LaGuardia Airport to Trieste. There are no popular flight routes from New York LaGuardia Airport to Trieste.
Search flight deals

  • How far is New York LaGuardia to Trieste Ronchi dei Legionari by plane?

    Trieste Ronchi dei Legionari is 4193.8 mi away from New York LaGuardia. 13h 20m is a normal flight duration for this route.

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

    Prices for flights from New York LaGuardia Airport to Trieste Ronchi dei Legionari Airport refresh daily.

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

    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 New York LaGuardia Airport 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 New York to Trieste?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from New York to Trieste for you.

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

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

How can momondo help me find flights from New York to Trieste?

Once you have performed a search for New York to Trieste flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Trieste, momondo offers a useful price alert feature which will track prices for flights to Trieste from New York and alert you when they change.

An easier way to manage your Trieste trip

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Cabin classes currently available on flights to Trieste

List of cabin classes available on flights landing in Trieste. Availability may vary depending on flight origin and airline.
First Class to Trieste
Business Class to Trieste