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Cheap flights from Pennsylvania to Trieste from $387

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 8/9. 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

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Find the cheapest flights from Pennsylvania to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
5:30 pm - 6:30 pm
EWR
-
TRS
19h 00m
2 stops
TAP AIR PORTUGAL Logo
11:15 am - 3:30 pm
TRS
-
EWR
34h 15m
2 stops
$760TAP AIR PORTUGAL
Wed, Sep 9 - Tue, Sep 15
Multiple Airlines Logo
8:30 pm - 2:30 pm
JFK
-
TRS
36h 00m
3 stops
Multiple Airlines Logo
7:15 pm - 10:05 pm
TRS
-
JFK
32h 50m
3 stops
$793Multiple Airlines
Tue, May 5 - Tue, May 12
TAP AIR PORTUGAL Logo
10:05 pm - 6:30 pm
JFK
-
TRS
38h 25m
2 stops
TAP AIR PORTUGAL Logo
6:35 am - 8:05 pm
TRS
-
JFK
19h 30m
2 stops
$812TAP AIR PORTUGAL
Wed, Sep 9 - Tue, Sep 15
Multiple Airlines Logo
4:25 pm - 9:55 pm
JFK
-
TRS
23h 30m
1 stop
Multiple Airlines Logo
6:20 am - 2:25 pm
TRS
-
JFK
14h 05m
1 stop
$831Multiple Airlines
Fri, May 8 - Tue, May 12
Multiple Airlines Logo
8:30 pm - 10:55 pm
JFK
-
TRS
20h 25m
3 stops
Multiple Airlines Logo
5:00 pm - 8:05 pm
TRS
-
JFK
33h 05m
2 stops
$837Multiple Airlines
Fri, Apr 24 - Sun, May 3
Multiple Airlines Logo
4:55 pm - 8:15 pm
JFK
-
TRS
21h 20m
2 stops
Multiple Airlines Logo
1:30 pm - 6:45 pm
TRS
-
JFK
35h 15m
2 stops
$838Multiple Airlines
Tue, May 5 - Tue, May 12
United Airlines Logo
2:51 pm - 10:25 am
LGA
-
TRS
13h 34m
2 stops
United Airlines Logo
6:35 am - 6:22 pm
TRS
-
LGA
17h 47m
2 stops
$1,317United Airlines
Wed, Jul 22 - Thu, Jul 30
United Airlines Logo
3:06 pm - 10:25 am
PIT
-
TRS
13h 19m
2 stops
United Airlines Logo
6:35 am - 2:53 pm
TRS
-
PIT
38h 18m
2 stops
$1,366United Airlines
Wed, Sep 9 - Wed, Sep 30
KLM Logo
5:00 pm - 2:30 pm
DCA
-
TRS
15h 30m
2 stops
KLM Logo
6:35 am - 6:11 pm
TRS
-
DCA
17h 36m
2 stops
$1,872KLM
Fri, Sep 11 - Fri, Sep 25
Lufthansa Logo
5:40 pm - 1:55 pm
PHL
-
TRS
14h 15m
1 stop
Lufthansa Logo
2:45 pm - 4:05 pm
TRS
-
PHL
31h 20m
1 stop
$1,984Lufthansa
Fri, May 22 - Sat, May 30

TAP AIR PORTUGAL flights from Pennsylvania to Trieste

Our best TAP AIR PORTUGAL deals on Pennsylvania to Trieste flight tickets
TAP AIR PORTUGAL
Sep 9
EWR5:30 pmNewark
19h 00m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Sep 15
TRS11:15 amTrieste Ronchi dei Legionari
34h 15m
2 stops
EWR3:30 pmNewark
$760
TAP AIR PORTUGAL
Sep 9
JFK10:05 pmNew York John F Kennedy Intl
38h 25m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Sep 15
TRS6:35 amTrieste Ronchi dei Legionari
19h 30m
2 stops
JFK8:05 pmNew York John F Kennedy Intl
$812
TAP AIR PORTUGAL
Sep 27
JFK10:05 pmNew York John F Kennedy Intl
18h 50m
2 stops
TRS10:55 pmTrieste Ronchi dei Legionari
Oct 13
TRS11:15 amTrieste Ronchi dei Legionari
14h 50m
2 stops
JFK8:05 pmNew York John F Kennedy Intl
$917

ITA Airways flights from Pennsylvania to Trieste

Our best ITA Airways deals on Pennsylvania to Trieste flight tickets
ITA Airways
Apr 16
JFK5:35 pmNew York John F Kennedy Intl
10h 50m
1 stop
TRS10:25 amTrieste Ronchi dei Legionari
Apr 20
TRS11:15 amTrieste Ronchi dei Legionari
32h 00m
1 stop
JFK1:15 pmNew York John F Kennedy Intl
$849
ITA Airways
Apr 14
JFK9:10 pmNew York John F Kennedy Intl
15h 20m
1 stop
TRS6:30 pmTrieste Ronchi dei Legionari
Apr 29
TRS6:35 amTrieste Ronchi dei Legionari
18h 20m
1 stop
JFK6:55 pmNew York John F Kennedy Intl
$864
ITA Airways
Apr 14
JFK5:35 pmNew York John F Kennedy Intl
10h 50m
1 stop
TRS10:25 amTrieste Ronchi dei Legionari
Apr 29
TRS6:35 amTrieste Ronchi dei Legionari
18h 20m
1 stop
JFK6:55 pmNew York John F Kennedy Intl
$876

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 April 9, 2026.
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

Cheapest round-trip

NewarkTrieste

EWR - TRS

EWRTRS

Newark

Wed 9/9

5:30 pm-6:30 pm

2 stops19h 00m

Trieste Ronchi dei Legionari

Tue 9/15

11:15 am-3:30 pm

2 stops34h 15m

$760

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Tue 5/5

8:30 pm-2:30 pm

3 stops36h 00m

Trieste Ronchi dei Legionari

Tue 5/12

7:15 pm-10:05 pm

3 stops32h 50m

$793

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Wed 9/9

10:05 pm-6:30 pm

2 stops38h 25m

Trieste Ronchi dei Legionari

Tue 9/15

6:35 am-8:05 pm

2 stops19h 30m

$812

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Fri 5/8

4:25 pm-9:55 pm

1 stop23h 30m

Trieste Ronchi dei Legionari

Tue 5/12

6:20 am-2:25 pm

1 stop14h 05m

$831

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Fri 4/24

8:30 pm-10:55 pm

3 stops20h 25m

Trieste Ronchi dei Legionari

Sun 5/3

5:00 pm-8:05 pm

2 stops33h 05m

$837

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Tue 5/5

4:55 pm-8:15 pm

2 stops21h 20m

Trieste Ronchi dei Legionari

Tue 5/12

1:30 pm-6:45 pm

2 stops35h 15m

$838
Quickest round-trip

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Wed 7/22

2:51 pm-10:25 am

2 stops13h 34m

Trieste Ronchi dei Legionari

Thu 7/30

6:35 am-6:22 pm

2 stops17h 47m

$1,317

PittsburghTrieste

PIT - TRS

PITTRS

Pittsburgh

Wed 9/9

3:06 pm-10:25 am

2 stops13h 19m

Trieste Ronchi dei Legionari

Wed 9/30

6:35 am-2:53 pm

2 stops38h 18m

$1,366

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Fri 9/11

5:00 pm-2:30 pm

2 stops15h 30m

Trieste Ronchi dei Legionari

Fri 9/25

6:35 am-6:11 pm

2 stops17h 36m

$1,872

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Fri 5/22

5:40 pm-1:55 pm

1 stop14h 15m

Trieste Ronchi dei Legionari

Sat 5/30

2:45 pm-4:05 pm

1 stop31h 20m

$1,984

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?

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

What airlines fly to Trieste?

British Airways, American Airlines and Iberia are the top three most popular airlines that fly to Trieste from Pennsylvania according to our data. British Airways is the first choice among our users, with 33% 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.

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

10h 50m

Direct flights

None
The fastest flight from Pennsylvania to Trieste takes 10h 50m
There are no direct flights from Pennsylvania to Trieste. There are no popular flight routes from Pennsylvania to Trieste.
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Frequently asked questions about flying from Pennsylvania to Trieste

  • 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
British Airways
American Airlines
Iberia
Finnair
United Airlines
Delta