Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Pennsylvania to Trieste from $289

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 10/7. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Pennsylvania to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:25 pm - 8:25 pm
JFK
-
TRS
25h 00m
2 stops
Multiple Airlines Logo
3:15 pm - 10:30 pm
TRS
-
JFK
13h 15m
1 stop
$659Multiple Airlines
Tue, Sep 8 - Thu, Sep 17
Multiple Airlines Logo
12:30 am - 6:30 pm
JFK
-
TRS
12h 00m
1 stop
Multiple Airlines Logo
11:15 am - 10:30 pm
TRS
-
JFK
17h 15m
1 stop
$676Multiple Airlines
Sun, Sep 6 - Thu, Sep 17
Multiple Airlines Logo
12:30 am - 6:30 pm
JFK
-
TRS
12h 00m
1 stop
Multiple Airlines Logo
3:15 pm - 10:30 pm
TRS
-
JFK
13h 15m
1 stop
$702Multiple Airlines
Mon, Sep 7 - Thu, Sep 17
TAP AIR PORTUGAL Logo
10:00 pm - 2:30 pm
JFK
-
TRS
34h 30m
2 stops
TAP AIR PORTUGAL Logo
3:15 pm - 8:05 pm
TRS
-
JFK
34h 50m
2 stops
$777TAP AIR PORTUGAL
Fri, Nov 6 - Mon, Nov 16
TAP AIR PORTUGAL Logo
5:30 pm - 6:30 pm
EWR
-
TRS
19h 00m
2 stops
TAP AIR PORTUGAL Logo
3:15 pm - 3:20 pm
TRS
-
EWR
30h 05m
2 stops
$803TAP AIR PORTUGAL
Wed, Oct 21 - Mon, Nov 2
ITA Airways Logo
4:45 pm - 10:25 am
IAD
-
TRS
11h 40m
1 stop
ITA Airways Logo
6:35 am - 2:40 pm
TRS
-
IAD
14h 05m
1 stop
$940ITA Airways
Thu, Nov 26 - Sun, Nov 29
ITA Airways Logo
4:30 pm - 10:55 pm
IAD
-
TRS
24h 25m
1 stop
ITA Airways Logo
7:15 pm - 2:30 pm
TRS
-
IAD
25h 15m
1 stop
$991ITA Airways
Sun, Sep 20 - Sat, Sep 26
Lufthansa Logo
5:35 pm - 1:45 pm
LGA
-
TRS
14h 10m
2 stops
Lufthansa Logo
6:20 am - 7:45 pm
TRS
-
LGA
19h 25m
2 stops
$1,085Lufthansa
Sun, Jul 19 - Tue, Jul 28
Lufthansa Logo
5:55 pm - 1:45 pm
IAD
-
TRS
13h 50m
1 stop
Lufthansa Logo
6:15 am - 1:35 pm
TRS
-
IAD
13h 20m
1 stop
$1,116Lufthansa
Tue, Aug 4 - Thu, Aug 13
Icelandair Logo
8:30 pm - 6:30 pm
IAD
-
TRS
16h 00m
2 stops
Icelandair Logo
11:15 am - 7:20 pm
TRS
-
IAD
38h 05m
2 stops
$1,166Icelandair
Tue, Aug 4 - Thu, Aug 13

United Airlines flights from Pennsylvania to Trieste

Our best United Airlines deals on Pennsylvania to Trieste flight tickets
United Airlines
Aug 31
ABE6:15 amAllentown-Bethlehem
22h 10m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Sep 10
TRS6:35 amTrieste Ronchi dei Legionari
20h 25m
2 stops
ABE9:00 pmAllentown-Bethlehem
$1,226
United Airlines
Aug 30
ABE5:36 pmAllentown-Bethlehem
34h 49m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Sep 8
TRS6:35 amTrieste Ronchi dei Legionari
20h 25m
2 stops
ABE9:00 pmAllentown-Bethlehem
$1,233
United Airlines
Sep 9
PIT2:11 pmPittsburgh
14h 14m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Sep 30
TRS6:35 amTrieste Ronchi dei Legionari
38h 18m
2 stops
PIT2:53 pmPittsburgh
$1,265

ITA Airways flights from Pennsylvania to Trieste

Our best ITA Airways deals on Pennsylvania to Trieste flight tickets
ITA Airways
Nov 6
JFK9:15 pmNew York John F Kennedy Intl
11h 15m
1 stop
TRS2:30 pmTrieste Ronchi dei Legionari
Nov 16
TRS6:35 amTrieste Ronchi dei Legionari
13h 40m
1 stop
JFK2:15 pmNew York John F Kennedy Intl
$793
ITA Airways
Sep 29
JFK4:05 pmNew York John F Kennedy Intl
24h 50m
1 stop
TRS10:55 pmTrieste Ronchi dei Legionari
Oct 7
TRS11:15 amTrieste Ronchi dei Legionari
13h 40m
1 stop
JFK6:55 pmNew York John F Kennedy Intl
$798
ITA Airways
Oct 2
JFK5:35 pmNew York John F Kennedy Intl
10h 50m
1 stop
TRS10:25 amTrieste Ronchi dei Legionari
Oct 5
TRS6:35 amTrieste Ronchi dei Legionari
13h 20m
1 stop
JFK1:55 pmNew York John F Kennedy Intl
$815

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 June 2, 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

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Tue 9/8

1:25 pm-8:25 pm

2 stops25h 00m

Trieste Ronchi dei Legionari

Thu 9/17

3:15 pm-10:30 pm

1 stop13h 15m

$659

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Sun 9/6

12:30 am-6:30 pm

1 stop12h 00m

Trieste Ronchi dei Legionari

Thu 9/17

11:15 am-10:30 pm

1 stop17h 15m

$676
Quickest round-trip

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Mon 9/7

12:30 am-6:30 pm

1 stop12h 00m

Trieste Ronchi dei Legionari

Thu 9/17

3:15 pm-10:30 pm

1 stop13h 15m

$702

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Fri 11/6

10:00 pm-2:30 pm

2 stops34h 30m

Trieste Ronchi dei Legionari

Mon 11/16

3:15 pm-8:05 pm

2 stops34h 50m

$777

NewarkTrieste

EWR - TRS

EWRTRS

Newark

Wed 10/21

5:30 pm-6:30 pm

2 stops19h 00m

Trieste Ronchi dei Legionari

Mon 11/2

3:15 pm-3:20 pm

2 stops30h 05m

$803

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Thu 11/26

4:45 pm-10:25 am

1 stop11h 40m

Trieste Ronchi dei Legionari

Sun 11/29

6:35 am-2:40 pm

1 stop14h 05m

$940

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sun 9/20

4:30 pm-10:55 pm

1 stop24h 25m

Trieste Ronchi dei Legionari

Sat 9/26

7:15 pm-2:30 pm

1 stop25h 15m

$991

New YorkTrieste

LGA - TRS

LGATRS

New York LaGuardia

Sun 7/19

5:35 pm-1:45 pm

2 stops14h 10m

Trieste Ronchi dei Legionari

Tue 7/28

6:20 am-7:45 pm

2 stops19h 25m

$1,085

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Tue 8/4

5:55 pm-1:45 pm

1 stop13h 50m

Trieste Ronchi dei Legionari

Thu 8/13

6:15 am-1:35 pm

1 stop13h 20m

$1,116

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Tue 8/4

8:30 pm-6:30 pm

2 stops16h 00m

Trieste Ronchi dei Legionari

Thu 8/13

11:15 am-7:20 pm

2 stops38h 05m

$1,166

Flights are sorted by cheapest round-trip flights first.

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

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, KLM, 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 36% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 8 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.
Search flight deals

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.

An easier way to manage your Trieste trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 7/2
Thu 7/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Italy

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
KLM
Lufthansa