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PHL - TRS

$467 Find Cheap Flights from Philadelphia to Trieste - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$782
Typical prices: $599-$1,328
KLM
Sun 11/11Sun 11/18
PHL - TRS • 2 stops
Cheapest one-way
$467
Typical prices: $794-$794
Multiple Airlines
Sat 11/10
PHL - TRS • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Philadelphia and Trieste. You'll need to take a connecting flight to reach the destination.
Insights
Insights
Top layover airports
Frankfurt am Main (FRA)
Cheapest • Avg $814 (round-trip)
Rome Fiumicino (FCO)
Shortest trip • 15h 02m (one-way)
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Insights
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Flight Deals

Cheap Flights from Philadelphia to Trieste (PHL-TRS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Trieste

Wed, Nov 11 - Wed, Nov 18
KLM Logo
10:32 am - 2:30 pmPHL  Philadelphia-TRS Trieste Ronchi dei Legionari
21h 58m2 stops Atlanta Hartsfield-Jackson Rome Fiumicino
KLM Logo
3:15 pm - 7:19 pmTRS  Trieste Ronchi dei Legionari-PHL Philadelphia
34h 04m2 stops Rome Fiumicino Detroit Metropolitan Wayne County
$782KLM
Fri, Nov 13 - Fri, Nov 20
KLM Logo
12:20 pm - 2:30 pmPHL  Philadelphia-TRS Trieste Ronchi dei Legionari
20h 10m2 stops Detroit Metropolitan Wayne County Rome Fiumicino
KLM Logo
6:35 am - 7:19 pmTRS  Trieste Ronchi dei Legionari-PHL Philadelphia
18h 44m2 stops Rome Fiumicino Detroit Metropolitan Wayne County
$832KLM
Wed, Nov 11 - Wed, Nov 18
Multiple Airlines Logo
6:45 pm - 2:30 pmPHL  Philadelphia-TRS Trieste Ronchi dei Legionari
13h 45m1 stop Rome Fiumicino
Multiple Airlines Logo
7:15 pm - 2:40 pmTRS  Trieste Ronchi dei Legionari-PHL Philadelphia
25h 25m1 stop Rome Fiumicino
$1,007Multiple Airlines
Wed, Mar 17 - Fri, Mar 26
United Airlines Logo
3:20 pm - 10:25 amPHL  Philadelphia-TRS Trieste Ronchi dei Legionari
14h 05m2 stops Montreal Pierre Elliott Trudeau Intl Rome Fiumicino
United Airlines Logo
6:35 am - 2:42 pmTRS  Trieste Ronchi dei Legionari-PHL Philadelphia
37h 07m2 stops Rome Fiumicino Montreal Pierre Elliott Trudeau Intl
$1,020United Airlines
Fri, Nov 13 - Fri, Nov 20
Multiple Airlines Logo
6:45 pm - 10:55 pmPHL  Philadelphia-TRS Trieste Ronchi dei Legionari
22h 10m1 stop Rome Fiumicino
Multiple Airlines Logo
6:35 am - 2:40 pmTRS  Trieste Ronchi dei Legionari-PHL Philadelphia
14h 05m1 stop Rome Fiumicino
$1,055Multiple Airlines
Wed, Nov 11 - Wed, Nov 18
Multiple Airlines Logo
3:20 pm - 6:30 pmPHL  Philadelphia-TRS Trieste Ronchi dei Legionari
21h 10m2 stops Montreal Pierre Elliott Trudeau Intl Rome Fiumicino
Multiple Airlines Logo
6:35 am - 10:56 pmTRS  Trieste Ronchi dei Legionari-PHL Philadelphia
22h 21m3 stops Rome Fiumicino Frankfurt am Main Toronto Pearson Intl
$1,144Multiple Airlines
Wed, Nov 11 - Wed, Nov 18
Multiple Airlines Logo
9:15 am - 5:50 pmPHL  Philadelphia-TRS Trieste Ronchi dei Legionari
26h 35m3 stops Toronto Pearson Intl Vienna Intl Tirana Rinas
Multiple Airlines Logo
7:15 pm - 11:43 pmTRS  Trieste Ronchi dei Legionari-PHL Philadelphia
34h 28m3 stops Rome Fiumicino Lisbon Humberto Delgado Miami
$1,186Multiple Airlines
Thu, Oct 15 - Mon, Oct 19
Lufthansa Logo
5:40 pm - 1:55 pmPHL  Philadelphia-TRS Trieste Ronchi dei Legionari
14h 15m1 stop Frankfurt am Main
Lufthansa Logo
2:50 pm - 4:05 pmTRS  Trieste Ronchi dei Legionari-PHL Philadelphia
31h 15m1 stop Frankfurt am Main
$1,219Lufthansa
Fri, Nov 13 - Fri, Nov 20
Multiple Airlines Logo
9:15 am - 5:50 pmPHL  Philadelphia-TRS Trieste Ronchi dei Legionari
26h 35m3 stops Toronto Pearson Intl Vienna Intl Tirana Rinas
Multiple Airlines Logo
1:35 pm - 12:53 amTRS  Trieste Ronchi dei Legionari-PHL Philadelphia
41h 18m3 stops Barcelona-El Prat Lisbon Humberto Delgado Orlando
$1,223Multiple Airlines
Fri, Nov 13 - Fri, Nov 20
Multiple Airlines Logo
9:15 am - 5:50 pmPHL  Philadelphia-TRS Trieste Ronchi dei Legionari
26h 35m3 stops Toronto Pearson Intl Vienna Intl Tirana Rinas
Multiple Airlines Logo
1:35 pm - 4:10 pmTRS  Trieste Ronchi dei Legionari-PHL Philadelphia
32h 35m2 stops Barcelona-El Prat Dublin
$1,244Multiple Airlines
Booking Insights

Price, demand and travel trends for Philadelphia to Trieste flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Philadelphia to Trieste?

Round-trip flights from Philadelphia to Trieste typically range from $599 to $1,328. The lowest price found in the past 5 days was $782, on KLM.

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Key details for Philadelphia to Trieste flights

Cheapest flight

$467
One-way flight from Philadelphia to Trieste

When to book flights from Philadelphia to Trieste

Are your dates flexible? Find out the best times to travel from Philadelphia to Trieste based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Philadelphia to Trieste flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Philadelphia to Trieste?

    Only Economy Class is available on flights from Philadelphia to Trieste.

  • How long is a flight from Philadelphia to Trieste?

    A nonstop flight from Philadelphia to Trieste takes 00m, covering 4,271 miles.

  • Do I need a passport to fly from Philadelphia to Trieste?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Philadelphia to Trieste changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $782 to $2,362. That means the highest observed fare was about 3x higher than the lowest one.

  • How are flight prices from Philadelphia to Trieste looking right now?

    One-way fares from Philadelphia to Trieste are currently lower than usual. Average one-way flight prices are about $563, which is 30% below the typical average for this route.

  • What car rental options are available at Trieste Ronchi dei Legionari Airport (TRS)?

    Trieste Ronchi dei Legionari Airport (TRS) hosts 5 major car rental companies, with daily rates starting from around $11 for economy cars. Top options include:

    • DRIVALIA
    • NOLEGGIARE
    • SICILY BY CAR
    • Europcar
    • Budget

  • Which airports can I use when flying from Philadelphia to Trieste?

    Flights from Philadelphia to Trieste usually depart from Philadelphia (PHL) and arrive at Trieste Ronchi dei Legionari (TRS).

  • Which airports do connecting flights from Philadelphia to Trieste pass through?

    Connecting flights from Philadelphia to Trieste most commonly pass through:

    • Frankfurt am Main (FRA) - 60% of one-stop connections
    • Rome Fiumicino (FCO) - 40% of one-stop connections

  • Can I save money by using flexible dates for flights from Philadelphia to Trieste?

    Yes. Flexible dates can save you up to 78% on flights from Philadelphia to Trieste. Sunday is the cheapest departure day at $599 round-trip on average, while Saturday is the most expensive at $2,613, a difference of $2,014.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different layover airport from Philadelphia to Trieste?

    Flying via Frankfurt am Main (FRA) gives the shortest average 1-stop total travel time at 15h 01m, compared with 15h 02m via Rome Fiumicino (FCO).

  • What is the time difference between Philadelphia and Trieste?

    Trieste is 6 hours ahead of Philadelphia (Central European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Philadelphia to Trieste flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure and avoid flying on Saturday. On this route, Sunday flights average $599, about $2,014 less than Saturday fares (77% savings) based on the last 12 months.

More options for your flight from Philadelphia to Trieste

Complete your trip to Trieste with a hotel stay or car rental

Car rentals in Trieste
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