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Cheap flights from New York LaGuardia Airport to Trieste from $328

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 9/14. 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
5:35 pm - 10:55 pm
LGA
-
TRS
23h 20m
2 stops
Multiple Airlines Logo
6:35 am - 9:30 pm
TRS
-
LGA
20h 55m
2 stops
$896Multiple Airlines
Sun, Aug 16 - Mon, Aug 24
Multiple Airlines Logo
3:30 pm - 3:00 pm
LGA
-
TRS
17h 30m
2 stops
Multiple Airlines Logo
3:15 pm - 7:36 pm
TRS
-
LGA
34h 21m
3 stops
$947Multiple Airlines
Wed, Oct 7 - Sun, Oct 18
Multiple Airlines Logo
5:35 pm - 1:45 pm
LGA
-
TRS
14h 10m
2 stops
Multiple Airlines Logo
6:20 am - 9:30 pm
TRS
-
LGA
21h 10m
2 stops
$1,048Multiple Airlines
Sun, Aug 9 - Tue, Aug 18
Multiple Airlines Logo
7:55 am - 4:35 pm
LGA
-
TRS
26h 40m
3 stops
Multiple Airlines Logo
8:30 am - 9:30 pm
TRS
-
LGA
19h 00m
2 stops
$1,072Multiple Airlines
Sat, Aug 22 - Sat, Sep 5
Multiple Airlines Logo
4:00 pm - 1:45 pm
LGA
-
TRS
15h 45m
2 stops
Multiple Airlines Logo
6:10 am - 7:40 pm
TRS
-
LGA
19h 30m
2 stops
$1,102Multiple Airlines
Sun, Aug 2 - Fri, Aug 28
Multiple Airlines Logo
3:30 pm - 6:30 pm
LGA
-
TRS
21h 00m
3 stops
Multiple Airlines Logo
6:20 am - 7:40 pm
TRS
-
LGA
19h 20m
3 stops
$1,113Multiple Airlines
Sun, Aug 9 - Tue, Aug 18
Multiple Airlines Logo
5:35 pm - 10:55 pm
LGA
-
TRS
23h 20m
2 stops
Multiple Airlines Logo
11:15 am - 9:30 pm
TRS
-
LGA
16h 15m
2 stops
$1,130Multiple Airlines
Sat, Aug 22 - Sat, Sep 5
Multiple Airlines Logo
4:45 pm - 10:25 pm
LGA
-
TRS
23h 40m
2 stops
Multiple Airlines Logo
6:15 am - 9:30 pm
TRS
-
LGA
21h 15m
2 stops
$1,134Multiple Airlines
Wed, Jul 22 - Thu, Jul 30
Multiple Airlines Logo
2:30 pm - 10:55 pm
LGA
-
TRS
26h 25m
3 stops
Multiple Airlines Logo
7:15 pm - 10:35 pm
TRS
-
LGA
33h 20m
3 stops
$1,177Multiple Airlines
Sun, Aug 9 - Tue, Aug 18
Multiple Airlines Logo
5:40 pm - 10:15 pm
LGA
-
TRS
22h 35m
2 stops
Multiple Airlines Logo
6:15 am - 6:10 pm
TRS
-
LGA
17h 55m
2 stops
$1,183Multiple Airlines
Thu, Jul 23 - Thu, Jul 30

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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
Aug 9
LGA3:30 pmNew York LaGuardia
36h 55m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Aug 18
TRS6:35 amTrieste Ronchi dei Legionari
18h 10m
2 stops
LGA6:45 pmNew York LaGuardia
$1,235
United Airlines
Jul 28
LGA2:51 pmNew York LaGuardia
13h 34m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Aug 4
TRS6:35 amTrieste Ronchi dei Legionari
17h 47m
2 stops
LGA6:22 pmNew York LaGuardia
$1,236
United Airlines
Oct 6
LGA2:59 pmNew York LaGuardia
13h 26m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Oct 13
TRS6:35 amTrieste Ronchi dei Legionari
19h 01m
2 stops
LGA7:36 pmNew York LaGuardia
$1,304

Lufthansa flights from New York LaGuardia Airport to Trieste

Our best Lufthansa deals on New York LaGuardia Airport to Trieste flight tickets
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
$1,296
Lufthansa
Jul 25
LGA3:30 pmNew York LaGuardia
16h 30m
2 stops
TRS2:00 pmTrieste Ronchi dei Legionari
Jul 31
TRS3:15 pmTrieste Ronchi dei Legionari
36h 15m
2 stops
LGA9:30 pmNew York LaGuardia
$1,377
Lufthansa
Jul 22
LGA3:30 pmNew York LaGuardia
16h 30m
2 stops
TRS2:00 pmTrieste Ronchi dei Legionari
Jul 30
TRS6:15 amTrieste Ronchi dei Legionari
19h 30m
2 stops
LGA7:45 pmNew York LaGuardia
$1,535

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 June 29, 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 - TRS

LGATRS

New York LaGuardia

Sun 8/16

5:35 pm-10:55 pm

2 stops23h 20m

Trieste Ronchi dei Legionari

Mon 8/24

6:35 am-9:30 pm

2 stops20h 55m

$896

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Wed 10/7

3:30 pm-3:00 pm

2 stops17h 30m

Trieste Ronchi dei Legionari

Sun 10/18

3:15 pm-7:36 pm

3 stops34h 21m

$947

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Sun 8/9

5:35 pm-1:45 pm

2 stops14h 10m

Trieste Ronchi dei Legionari

Tue 8/18

6:20 am-9:30 pm

2 stops21h 10m

$1,048

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Sat 8/22

7:55 am-4:35 pm

3 stops26h 40m

Trieste Ronchi dei Legionari

Sat 9/5

8:30 am-9:30 pm

2 stops19h 00m

$1,072
Quickest round-trip

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Sun 8/2

4:00 pm-1:45 pm

2 stops15h 45m

Trieste Ronchi dei Legionari

Fri 8/28

6:10 am-7:40 pm

2 stops19h 30m

$1,102

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Sun 8/9

3:30 pm-6:30 pm

3 stops21h 00m

Trieste Ronchi dei Legionari

Tue 8/18

6:20 am-7:40 pm

3 stops19h 20m

$1,113

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Sat 8/22

5:35 pm-10:55 pm

2 stops23h 20m

Trieste Ronchi dei Legionari

Sat 9/5

11:15 am-9:30 pm

2 stops16h 15m

$1,130

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Wed 7/22

4:45 pm-10:25 pm

2 stops23h 40m

Trieste Ronchi dei Legionari

Thu 7/30

6:15 am-9:30 pm

2 stops21h 15m

$1,134

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Sun 8/9

2:30 pm-10:55 pm

3 stops26h 25m

Trieste Ronchi dei Legionari

Tue 8/18

7:15 pm-10:35 pm

3 stops33h 20m

$1,177

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Thu 7/23

5:40 pm-10:15 pm

2 stops22h 35m

Trieste Ronchi dei Legionari

Thu 7/30

6:15 am-6:10 pm

2 stops17h 55m

$1,183

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

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 05m 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.

Frequently asked questions about flying from New York LaGuardia Airport to Trieste

  • How do I get Price Alerts for flights from New York LaGuardia Airport to Trieste?

    Price Alerts will notify you by email when the price for flights to Trieste from New York LaGuardia Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from New York LaGuardia Airport to Trieste with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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