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

Prices for flights from Philadelphia Airport to Trieste Ronchi dei Legionari Airport are refreshed on a daily basis.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia 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.

$587 Cheap Flights from Philadelphia to Trieste in 2025

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Philadelphia to Trieste

Round-trip

One-way

Cheap round-trip flights

4:35 pm - 2:00 pmPHL-TRS

15h 25m2 stops

2:40 pm - 2:47 pmTRS-PHL

30h 07m2 stops

$587

Find Deal

Mon, Nov 3 - Mon, Nov 10

4:35 pm - 2:00 pmPHL-TRS

15h 25m2 stops

2:40 pm - 4:05 pmTRS-PHL

31h 25m1 stop

$612

Find Deal

Mon, Nov 3 - Mon, Nov 10

5:35 pm - 2:05 pmPHL-TRS

14h 30m1 stop

6:30 am - 4:00 pmTRS-PHL

15h 30m1 stop

$958Lufthansa

Find Deal

Fri, Oct 3 - Fri, Oct 10

5:35 pm - 2:05 pmPHL-TRS

14h 30m1 stop

2:45 pm - 9:38 pmTRS-PHL

36h 53m2 stops

$1,116Lufthansa

Find Deal

Fri, Oct 3 - Fri, Oct 10

5:30 pm - 2:40 pmPHL-TRS

15h 10m2 stops

9:05 pm - 4:00 pmTRS-PHL

24h 55m1 stop

$1,197

Find Deal

Mon, Nov 3 - Sun, Nov 9

5:35 pm - 2:05 pmPHL-TRS

14h 30m1 stop

6:15 am - 5:35 pmTRS-PHL

16h 20m1 stop

$1,237Lufthansa

Find Deal

Thu, Sep 25 - Sat, Nov 1

5:35 pm - 2:30 pmPHL-TRS

38h 55m2 stops

7:55 am - 4:00 pmTRS-PHL

14h 05m2 stops

$1,290

Find Deal

Fri, Oct 3 - Fri, Oct 10

5:35 pm - 2:05 pmPHL-TRS

14h 30m1 stop

6:35 am - 5:35 pmTRS-PHL

16h 00m2 stops

$1,313

Find Deal

Thu, Sep 25 - Sat, Nov 1

5:30 am - 6:35 pmPHL-TRS

31h 05m3 stops

6:35 am - 9:49 amTRS-PHL

33h 14m3 stops

$1,340

Find Deal

Fri, Oct 3 - Fri, Oct 10

5:35 pm - 2:30 pmPHL-TRS

14h 55m2 stops

6:35 am - 5:35 pmTRS-PHL

16h 00m2 stops

$1,408

Find Deal

Thu, Sep 25 - Sat, Nov 1

Lufthansa flights from Philadelphia to Trieste

Our best Lufthansa deals on Philadelphia to Trieste flight tickets

Lufthansa

Oct 3

PHL5:35 pmPhiladelphia

14h 30m

1 stop

TRS2:05 pmTrieste Ronchi dei Legionari

Oct 10

TRS6:30 amTrieste Ronchi dei Legionari

15h 30m

1 stop

PHL4:00 pmPhiladelphia

$958

Find similar

Lufthansa

Oct 3

PHL5:35 pmPhiladelphia

14h 30m

1 stop

TRS2:05 pmTrieste Ronchi dei Legionari

Oct 10

TRS2:45 pmTrieste Ronchi dei Legionari

36h 53m

2 stops

PHL9:38 pmPhiladelphia

$1,116

Find similar

Lufthansa

Sep 25

PHL5:35 pmPhiladelphia

14h 30m

1 stop

TRS2:05 pmTrieste Ronchi dei Legionari

Nov 1

TRS6:15 amTrieste Ronchi dei Legionari

16h 20m

1 stop

PHL5:35 pmPhiladelphia

$1,237

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Mon 11/3

4:35 pm-2:00 pm

2 stops15h 25m

Trieste Ronchi dei Legionari

Mon 11/10

2:40 pm-2:47 pm

2 stops30h 07m

$587

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Mon 11/3

4:35 pm-2:00 pm

2 stops15h 25m

Trieste Ronchi dei Legionari

Mon 11/10

2:40 pm-4:05 pm

1 stop31h 25m

$612

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Fri 10/3

5:35 pm-2:05 pm

1 stop14h 30m

Trieste Ronchi dei Legionari

Fri 10/10

6:30 am-4:00 pm

1 stop15h 30m

$958

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Fri 10/3

5:35 pm-2:05 pm

1 stop14h 30m

Trieste Ronchi dei Legionari

Fri 10/10

2:45 pm-9:38 pm

2 stops36h 53m

$1,116

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Mon 11/3

5:30 pm-2:40 pm

2 stops15h 10m

Trieste Ronchi dei Legionari

Sun 11/9

9:05 pm-4:00 pm

1 stop24h 55m

$1,197

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Thu 9/25

5:35 pm-2:05 pm

1 stop14h 30m

Trieste Ronchi dei Legionari

Sat 11/1

6:15 am-5:35 pm

1 stop16h 20m

$1,237

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Fri 10/3

5:35 pm-2:30 pm

2 stops38h 55m

Trieste Ronchi dei Legionari

Fri 10/10

7:55 am-4:00 pm

2 stops14h 05m

$1,290

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Thu 9/25

5:35 pm-2:05 pm

1 stop14h 30m

Trieste Ronchi dei Legionari

Sat 11/1

6:35 am-5:35 pm

2 stops16h 00m

$1,313

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Fri 10/3

5:30 am-6:35 pm

3 stops31h 05m

Trieste Ronchi dei Legionari

Fri 10/10

6:35 am-9:49 am

3 stops33h 14m

$1,340

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Thu 9/25

5:35 pm-2:30 pm

2 stops14h 55m

Trieste Ronchi dei Legionari

Sat 11/1

6:35 am-5:35 pm

2 stops16h 00m

$1,408

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

How to get the cheapest flight ticket from Philadelphia 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 Philadelphia to Trieste Ronchi dei Legionari?

Lufthansa is the most popular carrier operating from Philadelphia to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

United Airlines, Delta and ITA Airways are the top three most popular airlines that fly to Trieste from Philadelphia according to our data. United Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 17 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 Philadelphia to Trieste

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Trieste according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Philadelphia to Trieste (PHL to TRS) flight deals and tips

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

Best Price Found	$669
Fastest flight time	14h 30m
Direct flights	None
Airports in Trieste	1 airport

The best one-way flight to Trieste from Philadelphia in the past 72 hours is $669. The best round-trip flight deal from Philadelphia to Trieste found on momondo in the last 72 hours is $587.

The fastest flight from Philadelphia to Trieste takes 14h 30m

There are no direct flights from Philadelphia to Trieste. Popular non-direct route for this connection is Philadelphia Airport - Trieste Ronchi dei Legionari Airport.

There is 1 airport near Trieste: Trieste Ronchi dei Legionari (TRS)

Search flight deals

How far is Philadelphia to Trieste Ronchi dei Legionari by plane?
Philadelphia and Trieste Ronchi dei Legionari are 4281.7 mi apart from one another. A reasonable flight in good conditions will take 14h 30m.
When did momondo last update prices for flights from Philadelphia Airport to Trieste Ronchi dei Legionari Airport?
Prices for flights from Philadelphia Airport to Trieste Ronchi dei Legionari Airport are refreshed on a daily basis.
How old do you have to be to fly from Philadelphia Airport to Trieste Ronchi dei Legionari Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia 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.

Grado

Udine

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Trieste?

It is quick and easy to find Philadelphia to Trieste flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Trieste that suits you.

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

Yes. momondo allows you to filter the results for Philadelphia to Trieste flights to just show those with flexible booking policies.

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

Once you have performed a search for Philadelphia 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 Philadelphia to Trieste right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Philadelphia to Trieste now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Trieste and let you know 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

Sun 8/24

Sun 8/31

Email me momondo's favorite deals

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

Cheap flights from Philadelphia to Trieste from $587

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Trieste departing on 11/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Philadelphia to Trieste

Cheap round-trip flights

Cheap one-way flights

Lufthansa flights from Philadelphia to Trieste

Our best Lufthansa deals on Philadelphia to Trieste flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to Trieste that are best for you.

See travel insights to Trieste from

How to get the cheapest flight ticket from Philadelphia 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 Philadelphia to Trieste Ronchi dei Legionari?

Lufthansa is the most popular carrier operating from Philadelphia to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

When to book flights from Philadelphia to Trieste

Cheap Philadelphia to Trieste (PHL to TRS) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Trieste

How far is Philadelphia to Trieste Ronchi dei Legionari by plane?

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

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

What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?

Traveling to a place near Trieste?

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Trieste?

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

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

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

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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