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Cheap flights from New York LaGuardia Airport to Trieste from $530

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 8/18. 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 New York LaGuardia Airport to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:00 pm - 4:35 pmLGA  New York LaGuardia-TRS Trieste Ronchi dei Legionari
18h 35m2 stops Toronto Pearson Intl Barcelona-El Prat
Multiple Airlines Logo
8:30 am - 7:36 pmTRS  Trieste Ronchi dei Legionari-LGA New York LaGuardia
17h 06m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
$925Multiple Airlines
Sat, Sep 12 - Sat, Sep 19
Multiple Airlines Logo
4:45 pm - 10:25 amLGA  New York LaGuardia-TRS Trieste Ronchi dei Legionari
35h 40m3 stops Toronto Pearson Intl Barcelona-El Prat Rome Fiumicino
Multiple Airlines Logo
8:30 am - 7:36 pmTRS  Trieste Ronchi dei Legionari-LGA New York LaGuardia
17h 06m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
$1,051Multiple Airlines
Sat, Sep 12 - Sat, Sep 19
Multiple Airlines Logo
10:35 am - 1:55 pmLGA  New York LaGuardia-TRS Trieste Ronchi dei Legionari
21h 20m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main
Multiple Airlines Logo
6:20 am - 4:56 pmTRS  Trieste Ronchi dei Legionari-LGA New York LaGuardia
16h 36m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl
$1,113Multiple Airlines
Mon, Oct 12 - Tue, Oct 20
United Airlines Logo
2:59 pm - 10:25 amLGA  New York LaGuardia-TRS Trieste Ronchi dei Legionari
13h 26m2 stops Washington, D.C. Dulles Intl Rome Fiumicino
United Airlines Logo
6:35 am - 9:30 pmTRS  Trieste Ronchi dei Legionari-LGA New York LaGuardia
20h 55m2 stops Rome Fiumicino Montreal Pierre Elliott Trudeau Intl
$1,180United Airlines
Wed, Oct 14 - Wed, Oct 21
United Airlines Logo
7:15 am - 10:25 amLGA  New York LaGuardia-TRS Trieste Ronchi dei Legionari
22h 10m2 stops Chicago O'Hare Intl Rome Fiumicino
United Airlines Logo
6:35 am - 6:45 pmTRS  Trieste Ronchi dei Legionari-LGA New York LaGuardia
18h 10m2 stops Rome Fiumicino Washington, D.C. Dulles Intl
$1,187United Airlines
Tue, Oct 27 - Tue, Nov 3
United Airlines Logo
9:05 am - 10:25 amLGA  New York LaGuardia-TRS Trieste Ronchi dei Legionari
20h 20m2 stops Chicago O'Hare Intl Rome Fiumicino
United Airlines Logo
6:35 am - 6:45 pmTRS  Trieste Ronchi dei Legionari-LGA New York LaGuardia
18h 10m2 stops Rome Fiumicino Washington, D.C. Dulles Intl
$1,187United Airlines
Mon, Oct 26 - Tue, Nov 3
United Airlines Logo
3:15 pm - 10:25 amLGA  New York LaGuardia-TRS Trieste Ronchi dei Legionari
14h 10m2 stops Montreal Pierre Elliott Trudeau Intl Rome Fiumicino
United Airlines Logo
6:35 am - 11:29 pmTRS  Trieste Ronchi dei Legionari-LGA New York LaGuardia
22h 54m2 stops Rome Fiumicino Chicago O'Hare Intl
$1,211United Airlines
Wed, Oct 28 - Tue, Nov 3
Multiple Airlines Logo
3:30 pm - 9:50 pmLGA  New York LaGuardia-TRS Trieste Ronchi dei Legionari
24h 20m3 stops Montreal Pierre Elliott Trudeau Intl Edinburgh Turnhouse London Stansted
Multiple Airlines Logo
6:10 am - 7:40 pmTRS  Trieste Ronchi dei Legionari-LGA New York LaGuardia
19h 30m3 stops Frankfurt am Main Paris Charles de Gaulle Montreal Pierre Elliott Trudeau Intl
$1,230Multiple Airlines
Mon, Aug 24 - Wed, Sep 2
Multiple Airlines Logo
5:35 pm - 9:50 pmLGA  New York LaGuardia-TRS Trieste Ronchi dei Legionari
22h 15m3 stops Montreal Pierre Elliott Trudeau Intl Edinburgh Turnhouse London Stansted
Multiple Airlines Logo
6:35 am - 7:25 pmTRS  Trieste Ronchi dei Legionari-LGA New York LaGuardia
42h 50m3 stops Rome Fiumicino Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$1,236Multiple Airlines
Mon, Aug 24 - Thu, Aug 27
Lufthansa Logo
3:30 pm - 1:45 pmLGA  New York LaGuardia-TRS Trieste Ronchi dei Legionari
40h 15m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main
Lufthansa Logo
11:15 am - 7:40 pmTRS  Trieste Ronchi dei Legionari-LGA New York LaGuardia
38h 25m2 stops Rome Fiumicino Montreal Pierre Elliott Trudeau Intl
$1,385Lufthansa
Mon, Aug 24 - Thu, Aug 27

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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
Oct 14
LGA2:59 pmNew York LaGuardia
13h 26m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Oct 21
TRS6:35 amTrieste Ronchi dei Legionari
20h 55m
2 stops
LGA9:30 pmNew York LaGuardia
$1,180
United Airlines
Oct 26
LGA9:05 amNew York LaGuardia
20h 20m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Nov 3
TRS6:35 amTrieste Ronchi dei Legionari
18h 10m
2 stops
LGA6:45 pmNew York LaGuardia
$1,187
United Airlines
Oct 28
LGA3:15 pmNew York LaGuardia
14h 10m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Nov 3
TRS6:35 amTrieste Ronchi dei Legionari
22h 54m
2 stops
LGA11:29 pmNew York LaGuardia
$1,211

Lufthansa flights from New York LaGuardia Airport to Trieste

Our best Lufthansa deals on New York LaGuardia Airport to Trieste flight tickets
Lufthansa
Aug 24
LGA3:30 pmNew York LaGuardia
40h 15m
2 stops
TRS1:45 pmTrieste Ronchi dei Legionari
Aug 27
TRS11:15 amTrieste Ronchi dei Legionari
38h 25m
2 stops
LGA7:40 pmNew York LaGuardia
$1,385
Lufthansa
Oct 4
LGA5:40 pmNew York LaGuardia
14h 50m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
Oct 13
TRS11:15 amTrieste Ronchi dei Legionari
17h 21m
2 stops
LGA10:36 pmNew York LaGuardia
$1,478
Lufthansa
Sep 8
LGA3:30 pmNew York LaGuardia
16h 15m
2 stops
TRS1:45 pmTrieste Ronchi dei Legionari
Sep 15
TRS11:15 amTrieste Ronchi dei Legionari
17h 21m
2 stops
LGA10:36 pmNew York LaGuardia
$1,502

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 August 14, 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

New YorkTrieste

LGA New York LaGuardia - TRS Trieste Ronchi dei Legionari

LGATRS

New York LaGuardia

Sat 9/12

4:00 pm-4:35 pm

2 stops18h 35m

Trieste Ronchi dei Legionari

Sat 9/19

8:30 am-7:36 pm

2 stops17h 06m

$925

New YorkTrieste

LGA New York LaGuardia - TRS Trieste Ronchi dei Legionari

LGATRS

New York LaGuardia

Sat 9/12

4:45 pm-10:25 am

3 stops35h 40m

Trieste Ronchi dei Legionari

Sat 9/19

8:30 am-7:36 pm

2 stops17h 06m

$1,051

New YorkTrieste

LGA New York LaGuardia - TRS Trieste Ronchi dei Legionari

LGATRS

New York LaGuardia

Mon 10/12

10:35 am-1:55 pm

2 stops21h 20m

Trieste Ronchi dei Legionari

Tue 10/20

6:20 am-4:56 pm

2 stops16h 36m

$1,113
Quickest round-trip

New YorkTrieste

LGA New York LaGuardia - TRS Trieste Ronchi dei Legionari

LGATRS

New York LaGuardia

Wed 10/14

2:59 pm-10:25 am

2 stops13h 26m

Trieste Ronchi dei Legionari

Wed 10/21

6:35 am-9:30 pm

2 stops20h 55m

$1,180

New YorkTrieste

LGA New York LaGuardia - TRS Trieste Ronchi dei Legionari

LGATRS

New York LaGuardia

Tue 10/27

7:15 am-10:25 am

2 stops22h 10m

Trieste Ronchi dei Legionari

Tue 11/3

6:35 am-6:45 pm

2 stops18h 10m

$1,187

New YorkTrieste

LGA New York LaGuardia - TRS Trieste Ronchi dei Legionari

LGATRS

New York LaGuardia

Mon 10/26

9:05 am-10:25 am

2 stops20h 20m

Trieste Ronchi dei Legionari

Tue 11/3

6:35 am-6:45 pm

2 stops18h 10m

$1,187

New YorkTrieste

LGA New York LaGuardia - TRS Trieste Ronchi dei Legionari

LGATRS

New York LaGuardia

Wed 10/28

3:15 pm-10:25 am

2 stops14h 10m

Trieste Ronchi dei Legionari

Tue 11/3

6:35 am-11:29 pm

2 stops22h 54m

$1,211

New YorkTrieste

LGA New York LaGuardia - TRS Trieste Ronchi dei Legionari

LGATRS

New York LaGuardia

Mon 8/24

3:30 pm-9:50 pm

3 stops24h 20m

Trieste Ronchi dei Legionari

Wed 9/2

6:10 am-7:40 pm

3 stops19h 30m

$1,230

New YorkTrieste

LGA New York LaGuardia - TRS Trieste Ronchi dei Legionari

LGATRS

New York LaGuardia

Mon 8/24

5:35 pm-9:50 pm

3 stops22h 15m

Trieste Ronchi dei Legionari

Thu 8/27

6:35 am-7:25 pm

3 stops42h 50m

$1,236

New YorkTrieste

LGA New York LaGuardia - TRS Trieste Ronchi dei Legionari

LGATRS

New York LaGuardia

Mon 8/24

3:30 pm-1:45 pm

2 stops40h 15m

Trieste Ronchi dei Legionari

Thu 8/27

11:15 am-7:40 pm

2 stops38h 25m

$1,385

Flights are sorted by cheapest round-trip flights 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?

United Airlines 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

14h 50m

Direct flights

None
The fastest flight from New York LaGuardia Airport to Trieste takes 14h 50m
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.
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Frequently asked questions about flying from New York LaGuardia Airport to Trieste

  • 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. 14h 50m 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
Grado
Udine

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