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.

$883 Cheap Flights from Philadelphia to Trieste in 2026

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Find the cheapest flights from Philadelphia to Trieste

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:40 pm - 2:05 pm

PHL

TRS

14h 25m

1 stop

6:25 am - 10:44 pm

TRS

PHL

21h 19m

2 stops

$1,331Multiple Airlines

Thu, Mar 12 - Fri, Mar 20

10:25 am - 2:25 pm

PHL

TRS

23h 00m

2 stops

6:35 am - 11:56 pm

TRS

PHL

22h 21m

2 stops

$1,342ITA Airways

Thu, Mar 12 - Fri, Mar 20

7:30 pm - 2:30 pm

PHL

TRS

14h 00m

1 stop

6:35 am - 5:45 pm

TRS

PHL

16h 10m

1 stop

$1,432Multiple Airlines

Fri, Mar 13 - Fri, Mar 20

7:30 pm - 10:55 pm

PHL

TRS

22h 25m

1 stop

6:35 am - 5:45 pm

TRS

PHL

16h 10m

1 stop

$1,439Multiple Airlines

Thu, Mar 12 - Fri, Mar 20

6:30 am - 10:25 am

PHL

TRS

22h 55m

2 stops

6:35 am - 12:16 am

TRS

PHL

22h 41m

2 stops

$1,455Lufthansa

Fri, Mar 13 - Fri, Mar 20

1:20 pm - 10:25 am

PHL

TRS

15h 05m

2 stops

6:35 am - 9:33 pm

TRS

PHL

20h 58m

2 stops

$1,649United Airlines

Sun, May 10 - Mon, May 18

5:10 pm - 10:25 am

PHL

TRS

36h 15m

2 stops

6:35 am - 12:16 am

TRS

PHL

22h 41m

2 stops

$2,034United Airlines

Sat, Mar 14 - Fri, Mar 20

3:30 pm - 10:55 pm

PHL

TRS

26h 25m

3 stops

6:00 am - 4:48 pm

TRS

PHL

39h 48m

3 stops

$2,091Multiple Airlines

Fri, Mar 13 - Fri, Mar 20

3:10 pm - 10:25 am

PHL

TRS

13h 15m

2 stops

6:35 am - 6:54 pm

TRS

PHL

18h 19m

2 stops

$2,103United Airlines

Fri, Jul 3 - Fri, Jul 17

3:10 pm - 10:25 am

PHL

TRS

13h 15m

2 stops

6:35 am - 9:34 pm

TRS

PHL

20h 59m

2 stops

$2,311United Airlines

Sat, Jul 11 - Sat, Jul 25

United Airlines flights from Philadelphia to Trieste

Our best United Airlines deals on Philadelphia to Trieste flight tickets

United Airlines

May 10

PHL1:20 pmPhiladelphia

15h 05m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

May 18

TRS6:35 amTrieste Ronchi dei Legionari

20h 58m

2 stops

PHL9:33 pmPhiladelphia

$1,649

United Airlines

Mar 14

PHL5:10 pmPhiladelphia

36h 15m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Mar 20

TRS6:35 amTrieste Ronchi dei Legionari

22h 41m

2 stops

PHL12:16 amPhiladelphia

$2,034

United Airlines

Jul 3

PHL3:10 pmPhiladelphia

13h 15m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Jul 17

TRS6:35 amTrieste Ronchi dei Legionari

18h 19m

2 stops

PHL6:54 pmPhiladelphia

$2,103

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Thu 3/12

6:40 pm-2:05 pm

1 stop14h 25m

Trieste Ronchi dei Legionari

Fri 3/20

6:25 am-10:44 pm

2 stops21h 19m

$1,331

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Thu 3/12

10:25 am-2:25 pm

2 stops23h 00m

Trieste Ronchi dei Legionari

Fri 3/20

6:35 am-11:56 pm

2 stops22h 21m

$1,342

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Fri 3/13

7:30 pm-2:30 pm

1 stop14h 00m

Trieste Ronchi dei Legionari

Fri 3/20

6:35 am-5:45 pm

1 stop16h 10m

$1,432

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Thu 3/12

7:30 pm-10:55 pm

1 stop22h 25m

Trieste Ronchi dei Legionari

Fri 3/20

6:35 am-5:45 pm

1 stop16h 10m

$1,439

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Fri 3/13

6:30 am-10:25 am

2 stops22h 55m

Trieste Ronchi dei Legionari

Fri 3/20

6:35 am-12:16 am

2 stops22h 41m

$1,455

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Sun 5/10

1:20 pm-10:25 am

2 stops15h 05m

Trieste Ronchi dei Legionari

Mon 5/18

6:35 am-9:33 pm

2 stops20h 58m

$1,649

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Sat 3/14

5:10 pm-10:25 am

2 stops36h 15m

Trieste Ronchi dei Legionari

Fri 3/20

6:35 am-12:16 am

2 stops22h 41m

$2,034

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Fri 3/13

3:30 pm-10:55 pm

3 stops26h 25m

Trieste Ronchi dei Legionari

Fri 3/20

6:00 am-4:48 pm

3 stops39h 48m

$2,091

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Fri 7/3

3:10 pm-10:25 am

2 stops13h 15m

Trieste Ronchi dei Legionari

Fri 7/17

6:35 am-6:54 pm

2 stops18h 19m

$2,103

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Sat 7/11

3:10 pm-10:25 am

2 stops13h 15m

Trieste Ronchi dei Legionari

Sat 7/25

6:35 am-9:34 pm

2 stops20h 59m

$2,311

Flights are sorted by cheapest round-trip flights first.

Sorted 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 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 34% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 18 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

Fastest flight time	14h 00m
Direct flights	None

The fastest flight from Philadelphia to Trieste takes 14h 00m

There are no direct flights from Philadelphia to Trieste. There are no popular flight routes from Philadelphia to Trieste.

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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 00m.
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.

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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.