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Cheap flights from Pennsylvania to Trieste from $409

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Trieste departing on 12/26. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
ITA Airways Logo
4:45 pm - 10:25 am
JFK
-
TRS
11h 40m1 stop
ITA Airways Logo
11:15 am - 6:55 pm
TRS
-
JFK
13h 40m1 stop
$461ITA Airways
Wed, Feb 4 - Wed, Feb 11
ITA Airways Logo
4:45 pm - 2:35 pm
JFK
-
TRS
15h 50m1 stop
ITA Airways Logo
7:35 am - 6:55 pm
TRS
-
JFK
17h 20m2 stops
$476ITA Airways
Wed, Feb 4 - Wed, Feb 11
ITA Airways Logo
4:45 pm - 12:20 pm
JFK
-
TRS
13h 35m2 stops
ITA Airways Logo
7:35 am - 6:55 pm
TRS
-
JFK
17h 20m2 stops
$490ITA Airways
Wed, Feb 4 - Wed, Feb 11
KLM Logo
7:30 pm - 10:55 pm
JFK
-
TRS
21h 25m1 stop
KLM Logo
6:35 am - 3:55 pm
TRS
-
JFK
15h 20m1 stop
$547KLM
Mon, Jan 19 - Tue, Jan 27
Multiple Airlines Logo
7:45 pm - 2:05 pm
LGA
-
TRS
36h 20m2 stops
Multiple Airlines Logo
6:35 am - 9:33 pm
TRS
-
LGA
20h 58m2 stops
$551Multiple Airlines
Thu, Feb 5 - Wed, Feb 11
Multiple Airlines Logo
3:30 pm - 2:10 pm
LGA
-
TRS
16h 40m2 stops
Multiple Airlines Logo
6:35 am - 9:33 pm
TRS
-
LGA
20h 58m2 stops
$565Multiple Airlines
Wed, Feb 4 - Wed, Feb 11
Lufthansa Logo
6:05 pm - 2:10 pm
EWR
-
TRS
14h 05m1 stop
Lufthansa Logo
6:35 am - 2:40 pm
TRS
-
EWR
14h 05m1 stop
$573Lufthansa
Wed, Feb 4 - Wed, Feb 11
SWISS Logo
10:00 pm - 6:30 pm
EWR
-
TRS
38h 30m2 stops
SWISS Logo
11:15 am - 8:30 pm
TRS
-
EWR
15h 15m2 stops
$581SWISS
Sun, Feb 15 - Mon, Feb 23
Lufthansa Logo
6:05 pm - 2:00 pm
EWR
-
TRS
13h 55m1 stop
Lufthansa Logo
6:15 am - 4:00 pm
TRS
-
EWR
15h 45m1 stop
$584Lufthansa
Mon, Jan 19 - Tue, Jan 27
SWISS Logo
5:25 pm - 6:30 pm
IAD
-
TRS
19h 05m2 stops
SWISS Logo
6:35 am - 3:05 pm
TRS
-
IAD
38h 30m2 stops
$933SWISS
Wed, Feb 11 - Wed, Feb 18

ITA Airways flights from Pennsylvania to Trieste

Our best ITA Airways deals on Pennsylvania to Trieste flight tickets
ITA Airways
Feb 4
JFK4:45 pmNew York John F Kennedy Intl
11h 40m
1 stop
TRS10:25 amTrieste Ronchi dei Legionari
Feb 11
TRS11:15 amTrieste Ronchi dei Legionari
13h 40m
1 stop
JFK6:55 pmNew York John F Kennedy Intl
$461
Find similar
ITA Airways
Feb 4
JFK4:45 pmNew York John F Kennedy Intl
15h 50m
1 stop
TRS2:35 pmTrieste Ronchi dei Legionari
Feb 11
TRS7:35 amTrieste Ronchi dei Legionari
17h 20m
2 stops
JFK6:55 pmNew York John F Kennedy Intl
$476
Find similar
ITA Airways
Feb 4
JFK4:45 pmNew York John F Kennedy Intl
13h 35m
2 stops
TRS12:20 pmTrieste Ronchi dei Legionari
Feb 11
TRS7:35 amTrieste Ronchi dei Legionari
17h 20m
2 stops
JFK6:55 pmNew York John F Kennedy Intl
$490
Find similar

Lufthansa flights from Pennsylvania to Trieste

Our best Lufthansa deals on Pennsylvania to Trieste flight tickets
Lufthansa
Feb 4
EWR6:05 pmNewark
14h 05m
1 stop
TRS2:10 pmTrieste Ronchi dei Legionari
Feb 11
TRS6:35 amTrieste Ronchi dei Legionari
14h 05m
1 stop
EWR2:40 pmNewark
$573
Find similar
Lufthansa
Jan 19
EWR6:05 pmNewark
13h 55m
1 stop
TRS2:00 pmTrieste Ronchi dei Legionari
Jan 27
TRS6:15 amTrieste Ronchi dei Legionari
15h 45m
1 stop
EWR4:00 pmNewark
$584
Find similar
Lufthansa
Feb 5
EWR10:40 pmNewark
17h 50m
2 stops
TRS10:30 pmTrieste Ronchi dei Legionari
Feb 11
TRS6:35 amTrieste Ronchi dei Legionari
14h 05m
1 stop
EWR2:40 pmNewark
$592
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Pennsylvania 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 22, 2025.
Use the filters below to find and compare flights from Pennsylvania to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Wed 2/4

4:45 pm-10:25 am

1 stop11h 40m

Trieste Ronchi dei Legionari

Wed 2/11

11:15 am-6:55 pm

1 stop13h 40m

$461

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Wed 2/4

4:45 pm-2:35 pm

1 stop15h 50m

Trieste Ronchi dei Legionari

Wed 2/11

7:35 am-6:55 pm

2 stops17h 20m

$476

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Wed 2/4

4:45 pm-12:20 pm

2 stops13h 35m

Trieste Ronchi dei Legionari

Wed 2/11

7:35 am-6:55 pm

2 stops17h 20m

$490

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Mon 1/19

7:30 pm-10:55 pm

1 stop21h 25m

Trieste Ronchi dei Legionari

Tue 1/27

6:35 am-3:55 pm

1 stop15h 20m

$547

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Thu 2/5

7:45 pm-2:05 pm

2 stops36h 20m

Trieste Ronchi dei Legionari

Wed 2/11

6:35 am-9:33 pm

2 stops20h 58m

$551

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Wed 2/4

3:30 pm-2:10 pm

2 stops16h 40m

Trieste Ronchi dei Legionari

Wed 2/11

6:35 am-9:33 pm

2 stops20h 58m

$565

NewarkTrieste

EWR - TRS

EWRTRS

Newark

Wed 2/4

6:05 pm-2:10 pm

1 stop14h 05m

Trieste Ronchi dei Legionari

Wed 2/11

6:35 am-2:40 pm

1 stop14h 05m

$573

NewarkTrieste

EWR - TRS

EWRTRS

Newark

Sun 2/15

10:00 pm-6:30 pm

2 stops38h 30m

Trieste Ronchi dei Legionari

Mon 2/23

11:15 am-8:30 pm

2 stops15h 15m

$581

NewarkTrieste

EWR - TRS

EWRTRS

Newark

Mon 1/19

6:05 pm-2:00 pm

1 stop13h 55m

Trieste Ronchi dei Legionari

Tue 1/27

6:15 am-4:00 pm

1 stop15h 45m

$584

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Wed 2/11

5:25 pm-6:30 pm

2 stops19h 05m

Trieste Ronchi dei Legionari

Wed 2/18

6:35 am-3:05 pm

2 stops38h 30m

$933

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 Pennsylvania 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 Pennsylvania to Trieste Ronchi dei Legionari?

ITA Airways, Lufthansa, and TAP AIR PORTUGAL are the most popular carriers operating from Pennsylvania to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

Iberia, American Airlines and British Airways are the top three most popular airlines that fly to Trieste from Pennsylvania according to our data. Iberia is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 9 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

Cheap Pennsylvania to Trieste flight deals and tips

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

Fastest flight time

13h 55m

Direct flights

None
The fastest flight from Pennsylvania to Trieste takes 13h 55m
There are no direct flights from Pennsylvania to Trieste. There are no popular flight routes from Pennsylvania to Trieste.
Search flight deals

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

    Prices for flights from Pennsylvania to Trieste Ronchi dei Legionari Airport refresh daily.

  • How many operators does momondo search for flights from Pennsylvania to Trieste Ronchi dei Legionari Airport?

  • How old do you have to be to fly from Pennsylvania 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 Pennsylvania 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 Pennsylvania 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 Pennsylvania to Trieste for you.

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

Yes. All flights to Trieste from Pennsylvania on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Pennsylvania to Trieste?

Once all potential Pennsylvania to Trieste flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Pennsylvania 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 Pennsylvania and alert you when they change.

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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
Iberia
American Airlines
British Airways
United Airlines
Finnair
Lufthansa
Delta
Air Canada
Scandinavian Airlines