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Cheap flights from Newark Airport to Trieste from $391

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Newark Airport to Trieste departing on 9/11. 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 Newark Airport to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:25 pm - 9:50 pmEWR  Newark-TRS Trieste Ronchi dei Legionari
19h 25m2 stops Reykjavik Keflavik Intl London Heathrow
Multiple Airlines Logo
6:35 am - 9:00 pmTRS  Trieste Ronchi dei Legionari-EWR Newark
20h 25m2 stops Rome Fiumicino Paris Charles de Gaulle
$761Multiple Airlines
Mon, Sep 21 - Mon, Sep 28
TAP AIR PORTUGAL Logo
11:00 pm - 6:30 pmEWR  Newark-TRS Trieste Ronchi dei Legionari
37h 30m2 stops Lisbon Humberto Delgado Rome Fiumicino
TAP AIR PORTUGAL Logo
3:15 pm - 9:00 pmTRS  Trieste Ronchi dei Legionari-EWR Newark
35h 45m2 stops Rome Fiumicino Lisbon Humberto Delgado
$792TAP AIR PORTUGAL
Sun, Oct 4 - Tue, Oct 13
Multiple Airlines Logo
11:00 pm - 7:00 pmEWR  Newark-TRS Trieste Ronchi dei Legionari
14h 00m1 stop Paris Orly
Multiple Airlines Logo
6:35 am - 9:00 pmTRS  Trieste Ronchi dei Legionari-EWR Newark
20h 25m2 stops Rome Fiumicino Paris Charles de Gaulle
$809Multiple Airlines
Mon, Sep 21 - Mon, Sep 28
TAP AIR PORTUGAL Logo
11:00 pm - 6:30 pmEWR  Newark-TRS Trieste Ronchi dei Legionari
37h 30m2 stops Lisbon Humberto Delgado Rome Fiumicino
TAP AIR PORTUGAL Logo
3:15 pm - 4:20 pmTRS  Trieste Ronchi dei Legionari-EWR Newark
54h 05m2 stops Rome Fiumicino Lisbon Humberto Delgado
$812TAP AIR PORTUGAL
Mon, Oct 19 - Sat, Oct 31
TAP AIR PORTUGAL Logo
11:00 pm - 6:30 pmEWR  Newark-TRS Trieste Ronchi dei Legionari
37h 30m2 stops Lisbon Humberto Delgado Rome Fiumicino
TAP AIR PORTUGAL Logo
11:15 am - 4:20 pmTRS  Trieste Ronchi dei Legionari-EWR Newark
58h 05m2 stops Rome Fiumicino Lisbon Humberto Delgado
$812TAP AIR PORTUGAL
Mon, Oct 19 - Sat, Oct 31
Multiple Airlines Logo
11:00 pm - 7:00 pmEWR  Newark-TRS Trieste Ronchi dei Legionari
14h 00m1 stop Paris Orly
Multiple Airlines Logo
2:55 pm - 4:55 pmTRS  Trieste Ronchi dei Legionari-EWR Newark
32h 00m2 stops Paris Beauvais-Tille Montreal Pierre Elliott Trudeau Intl
$838Multiple Airlines
Mon, Aug 24 - Tue, Sep 1
Multiple Airlines Logo
11:00 am - 1:05 pmEWR  Newark-TRS Trieste Ronchi dei Legionari
20h 05m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
6:35 am - 9:00 pmTRS  Trieste Ronchi dei Legionari-EWR Newark
20h 25m2 stops Rome Fiumicino Paris Charles de Gaulle
$844Multiple Airlines
Mon, Sep 21 - Mon, Sep 28
TAP AIR PORTUGAL Logo
11:00 pm - 6:30 pmEWR  Newark-TRS Trieste Ronchi dei Legionari
37h 30m2 stops Lisbon Humberto Delgado Rome Fiumicino
TAP AIR PORTUGAL Logo
3:15 pm - 9:00 pmTRS  Trieste Ronchi dei Legionari-EWR Newark
35h 45m2 stops Rome Fiumicino Lisbon Humberto Delgado
$851TAP AIR PORTUGAL
Sun, Oct 4 - Tue, Oct 13
TAP AIR PORTUGAL Logo
11:00 pm - 6:30 pmEWR  Newark-TRS Trieste Ronchi dei Legionari
37h 30m2 stops Lisbon Humberto Delgado Rome Fiumicino
TAP AIR PORTUGAL Logo
3:15 pm - 9:00 pmTRS  Trieste Ronchi dei Legionari-EWR Newark
35h 45m2 stops Rome Fiumicino Lisbon Humberto Delgado
$852TAP AIR PORTUGAL
Sun, Oct 4 - Tue, Oct 13
ITA Airways Logo
11:25 am - 10:25 amEWR  Newark-TRS Trieste Ronchi dei Legionari
17h 00m2 stops Boston Logan Intl Rome Fiumicino
ITA Airways Logo
6:35 am - 7:30 pmTRS  Trieste Ronchi dei Legionari-EWR Newark
18h 55m2 stops Rome Fiumicino Boston Logan Intl
$903ITA Airways
Sun, Aug 23 - Mon, Aug 31

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TAP AIR PORTUGAL flights from Newark Airport to Trieste

Our best TAP AIR PORTUGAL deals on Newark Airport to Trieste flight tickets
TAP AIR PORTUGAL
Oct 4
EWR11:00 pmNewark
37h 30m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Oct 13
TRS3:15 pmTrieste Ronchi dei Legionari
35h 45m
2 stops
EWR9:00 pmNewark
$792
TAP AIR PORTUGAL
Oct 19
EWR11:00 pmNewark
37h 30m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Oct 31
TRS3:15 pmTrieste Ronchi dei Legionari
54h 05m
2 stops
EWR4:20 pmNewark
$812
TAP AIR PORTUGAL
Oct 4
EWR11:00 pmNewark
37h 30m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Oct 13
TRS3:15 pmTrieste Ronchi dei Legionari
35h 45m
2 stops
EWR9:00 pmNewark
$851

Lufthansa flights from Newark Airport to Trieste

Our best Lufthansa deals on Newark Airport to Trieste flight tickets
Lufthansa
Oct 14
EWR6:00 pmNewark
14h 00m
1 stop
TRS2:00 pmTrieste Ronchi dei Legionari
Oct 20
TRS2:45 pmTrieste Ronchi dei Legionari
31h 00m
1 stop
EWR3:45 pmNewark
$1,021
Lufthansa
Oct 15
EWR6:00 pmNewark
13h 55m
1 stop
TRS1:55 pmTrieste Ronchi dei Legionari
Oct 20
TRS6:20 amTrieste Ronchi dei Legionari
15h 25m
1 stop
EWR3:45 pmNewark
$1,076
Lufthansa
Oct 14
EWR6:00 pmNewark
14h 00m
1 stop
TRS2:00 pmTrieste Ronchi dei Legionari
Oct 19
TRS6:10 amTrieste Ronchi dei Legionari
15h 35m
1 stop
EWR3:45 pmNewark
$1,086

momondo Fare Finder

 
Customize your flight search to find flights from Newark 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 6, 2026.
Use the filters below to find and compare flights from Newark Airport to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Mon 9/21

8:25 pm-9:50 pm

2 stops19h 25m

Trieste Ronchi dei Legionari

Mon 9/28

6:35 am-9:00 pm

2 stops20h 25m

$761

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Sun 10/4

11:00 pm-6:30 pm

2 stops37h 30m

Trieste Ronchi dei Legionari

Tue 10/13

3:15 pm-9:00 pm

2 stops35h 45m

$792
Quickest round-trip

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Mon 9/21

11:00 pm-7:00 pm

1 stop14h 00m

Trieste Ronchi dei Legionari

Mon 9/28

6:35 am-9:00 pm

2 stops20h 25m

$809

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Mon 10/19

11:00 pm-6:30 pm

2 stops37h 30m

Trieste Ronchi dei Legionari

Sat 10/31

3:15 pm-4:20 pm

2 stops54h 05m

$812

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Mon 10/19

11:00 pm-6:30 pm

2 stops37h 30m

Trieste Ronchi dei Legionari

Sat 10/31

11:15 am-4:20 pm

2 stops58h 05m

$812

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Mon 8/24

11:00 pm-7:00 pm

1 stop14h 00m

Trieste Ronchi dei Legionari

Tue 9/1

2:55 pm-4:55 pm

2 stops32h 00m

$838

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Mon 9/21

11:00 am-1:05 pm

3 stops20h 05m

Trieste Ronchi dei Legionari

Mon 9/28

6:35 am-9:00 pm

2 stops20h 25m

$844

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Sun 10/4

11:00 pm-6:30 pm

2 stops37h 30m

Trieste Ronchi dei Legionari

Tue 10/13

3:15 pm-9:00 pm

2 stops35h 45m

$851

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Sun 10/4

11:00 pm-6:30 pm

2 stops37h 30m

Trieste Ronchi dei Legionari

Tue 10/13

3:15 pm-9:00 pm

2 stops35h 45m

$852

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Sun 8/23

11:25 am-10:25 am

2 stops17h 00m

Trieste Ronchi dei Legionari

Mon 8/31

6:35 am-7:30 pm

2 stops18h 55m

$903

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 Newark 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 Newark to Trieste Ronchi dei Legionari?

TAP AIR PORTUGAL is the most popular carrier operating from Newark to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

United Airlines, TAP AIR PORTUGAL and Lufthansa are the top three most popular airlines that fly to Trieste from Newark Airport according to our data. United Airlines is the first choice among our users, with 65% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 6 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

When to book flights from Newark Airport to Trieste

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

Cheap Newark Airport to Trieste (EWR to TRS) flight deals and tips

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

Fastest flight time

15h 25m

Direct flights

None
The fastest flight from Newark Airport to Trieste takes 15h 25m
There are no direct flights from Newark Airport to Trieste. There are no popular flight routes from Newark Airport to Trieste.
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Frequently asked questions about flying from Newark Airport to Trieste

  • How far is Newark to Trieste Ronchi dei Legionari by plane?

    Trieste Ronchi dei Legionari is 4209.7 mi away from Newark. A reasonable flight in good conditions will take 15h 25m.

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

    Prices for flights from Newark Airport to Trieste Ronchi dei Legionari Airport were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Newark 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?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from New York to Trieste. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Trieste from New York with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from New York to Trieste.

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

Yes. momondo can track prices for New York 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
United Airlines
TAP AIR PORTUGAL
Lufthansa
Scandinavian Airlines
SWISS
British Airways