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Cheap flights from New York LaGuardia Airport to Trieste from $338

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 4/25. 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
5:40 pm - 1:55 pm
LGA
-
TRS
14h 15m
2 stops
Multiple Airlines Logo
6:15 am - 2:37 pm
TRS
-
LGA
14h 22m
2 stops
$989Multiple Airlines
Thu, Aug 13 - Sat, Aug 22
Multiple Airlines Logo
4:00 pm - 1:45 pm
LGA
-
TRS
15h 45m
2 stops
Multiple Airlines Logo
2:45 pm - 2:58 pm
TRS
-
LGA
30h 13m
2 stops
$1,069Multiple Airlines
Sun, Apr 12 - Sat, Apr 18
Multiple Airlines Logo
4:45 pm - 2:00 pm
LGA
-
TRS
39h 15m
2 stops
Multiple Airlines Logo
6:10 am - 4:55 pm
TRS
-
LGA
16h 45m
2 stops
$1,085Multiple Airlines
Fri, Jul 31 - Sun, Aug 23
Multiple Airlines Logo
11:35 am - 2:00 pm
LGA
-
TRS
20h 25m
2 stops
Multiple Airlines Logo
6:10 am - 2:37 pm
TRS
-
LGA
14h 27m
2 stops
$1,119Multiple Airlines
Sat, May 2 - Wed, May 27
Multiple Airlines Logo
4:00 pm - 10:15 pm
LGA
-
TRS
24h 15m
2 stops
Multiple Airlines Logo
6:15 am - 2:37 pm
TRS
-
LGA
14h 22m
2 stops
$1,191Multiple Airlines
Sat, Apr 25 - Sat, May 2
Lufthansa Logo
3:30 pm - 1:55 pm
LGA
-
TRS
16h 25m
2 stops
Lufthansa Logo
2:50 pm - 8:59 pm
TRS
-
LGA
36h 09m
2 stops
$1,230Lufthansa
Mon, Apr 27 - Mon, May 4
Multiple Airlines Logo
11:35 am - 2:25 pm
LGA
-
TRS
20h 50m
3 stops
Multiple Airlines Logo
7:15 pm - 9:30 pm
TRS
-
LGA
32h 15m
3 stops
$1,285Multiple Airlines
Tue, Jun 16 - Mon, Oct 12
Lufthansa Logo
2:30 pm - 10:15 pm
LGA
-
TRS
25h 45m
2 stops
Lufthansa Logo
6:10 am - 7:36 pm
TRS
-
LGA
19h 26m
2 stops
$1,286Lufthansa
Tue, Jun 16 - Mon, Oct 12
Multiple Airlines Logo
3:30 pm - 2:00 pm
LGA
-
TRS
16h 30m
2 stops
Multiple Airlines Logo
6:15 am - 2:37 pm
TRS
-
LGA
14h 22m
2 stops
$1,298Multiple Airlines
Wed, Jul 22 - Thu, Jul 30
Multiple Airlines Logo
3:30 pm - 2:00 pm
LGA
-
TRS
16h 30m
2 stops
Multiple Airlines Logo
6:15 am - 2:37 pm
TRS
-
LGA
14h 22m
2 stops
$1,299Multiple Airlines
Wed, Jul 22 - Thu, Jul 30

Lufthansa flights from New York LaGuardia Airport to Trieste

Our best Lufthansa deals on New York LaGuardia Airport to Trieste flight tickets
Lufthansa
Apr 27
LGA3:30 pmNew York LaGuardia
16h 25m
2 stops
TRS1:55 pmTrieste Ronchi dei Legionari
May 4
TRS2:50 pmTrieste Ronchi dei Legionari
36h 09m
2 stops
LGA8:59 pmNew York LaGuardia
$1,230
Lufthansa
Jun 16
LGA2:30 pmNew York LaGuardia
25h 45m
2 stops
TRS10:15 pmTrieste Ronchi dei Legionari
Oct 12
TRS6:10 amTrieste Ronchi dei Legionari
19h 26m
2 stops
LGA7:36 pmNew York LaGuardia
$1,286
Lufthansa
Apr 25
LGA4:30 pmNew York LaGuardia
15h 30m
2 stops
TRS2:00 pmTrieste Ronchi dei Legionari
May 2
TRS6:15 amTrieste Ronchi dei Legionari
19h 21m
2 stops
LGA7:36 pmNew York LaGuardia
$2,764

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
Jul 8
LGA11:20 amNew York LaGuardia
17h 05m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Jul 18
TRS6:35 amTrieste Ronchi dei Legionari
19h 10m
2 stops
LGA7:45 pmNew York LaGuardia
$1,545
United Airlines
Jul 20
LGA2:51 pmNew York LaGuardia
13h 34m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Aug 5
TRS6:35 amTrieste Ronchi dei Legionari
19h 02m
2 stops
LGA7:37 pmNew York LaGuardia
$1,576
United Airlines
Aug 1
LGA2:51 pmNew York LaGuardia
13h 34m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Aug 22
TRS6:35 amTrieste Ronchi dei Legionari
17h 57m
2 stops
LGA6:32 pmNew York LaGuardia
$1,627

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 March 15, 2026.
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

Cheapest round-trip
Quickest round-trip

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Thu 8/13

5:40 pm-1:55 pm

2 stops14h 15m

Trieste Ronchi dei Legionari

Sat 8/22

6:15 am-2:37 pm

2 stops14h 22m

$989

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Sun 4/12

4:00 pm-1:45 pm

2 stops15h 45m

Trieste Ronchi dei Legionari

Sat 4/18

2:45 pm-2:58 pm

2 stops30h 13m

$1,069

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Fri 7/31

4:45 pm-2:00 pm

2 stops39h 15m

Trieste Ronchi dei Legionari

Sun 8/23

6:10 am-4:55 pm

2 stops16h 45m

$1,085

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Sat 5/2

11:35 am-2:00 pm

2 stops20h 25m

Trieste Ronchi dei Legionari

Wed 5/27

6:10 am-2:37 pm

2 stops14h 27m

$1,119

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Sat 4/25

4:00 pm-10:15 pm

2 stops24h 15m

Trieste Ronchi dei Legionari

Sat 5/2

6:15 am-2:37 pm

2 stops14h 22m

$1,191

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Mon 4/27

3:30 pm-1:55 pm

2 stops16h 25m

Trieste Ronchi dei Legionari

Mon 5/4

2:50 pm-8:59 pm

2 stops36h 09m

$1,230

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Tue 6/16

11:35 am-2:25 pm

3 stops20h 50m

Trieste Ronchi dei Legionari

Mon 10/12

7:15 pm-9:30 pm

3 stops32h 15m

$1,285

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Tue 6/16

2:30 pm-10:15 pm

2 stops25h 45m

Trieste Ronchi dei Legionari

Mon 10/12

6:10 am-7:36 pm

2 stops19h 26m

$1,286

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Wed 7/22

3:30 pm-2:00 pm

2 stops16h 30m

Trieste Ronchi dei Legionari

Thu 7/30

6:15 am-2:37 pm

2 stops14h 22m

$1,298

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Wed 7/22

3:30 pm-2:00 pm

2 stops16h 30m

Trieste Ronchi dei Legionari

Thu 7/30

6:15 am-2:37 pm

2 stops14h 22m

$1,299

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 airline that flies from New York LaGuardia to Trieste Ronchi dei Legionari?

Lufthansa is the most popular carrier operating from New York LaGuardia to Trieste Ronchi dei Legionari

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

13h 53m

Direct flights

None
The fastest flight from New York LaGuardia Airport to Trieste takes 13h 53m
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 53m 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.

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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