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Trieste

$520+ Cheap flights from Philadelphia (PHL) to Trieste (TRS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — TRS
paź 15 — paź 221
śr. 10/15
śr. 10/22
1 adult, Economy
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Cheap flight deals from Philadelphia to Trieste

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Trieste (TRS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated Wrzesień 15, 2025.

Round-trip from

$594
(Cheapflightsfares)

One-way from

$520
(FlightHub)
From Philadelphia to Trieste Ronchi dei Legionari
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One-way flight from Philadelphia to Trieste Ronchi dei Legionari
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Find flight deals from Philadelphia to Trieste

Cheapest flights from Philadelphia to Trieste
Explore the most affordable flight options available from Philadelphia to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Wrzesień 15, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wt. 11/115:40 pmPHL - TRS
1 stop14h 20mLufthansa
wt. 11/186:25 amTRS - PHL
1 stop15h 40mLufthansa
Deal found 9/14$594
This Orbitz deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wt. 11/115:40 pmPHL - TRS
1 stop14h 20mMultiple Airlines
wt. 11/186:25 amTRS - PHL
2 stops14h 22mMultiple Airlines
Deal found 9/14$602
This KLM deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pt. 12/52:23 pmPHL - TRS
2 stops26h 32mKLM
wt. 12/96:35 amTRS - PHL
2 stops22h 34mKLM
Deal found 9/14$763
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sob. 12/274:35 pmPHL - TRS
2 stops35h 50mUnited Airlines
sob. 1/106:35 amTRS - PHL
2 stops22h 21mUnited Airlines
Deal found 9/14$1,632
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sob. 12/274:35 pmPHL - TRS
2 stops35h 50mUnited Airlines
pt. 1/96:35 amTRS - PHL
2 stops38h 12mUnited Airlines
Deal found 9/14$1,635
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ndz. 9/211:03 pmPHL - TRS
2 stops15h 22mUnited Airlines
pt. 9/266:35 amTRS - PHL
2 stops21h 03mUnited Airlines
Deal found 9/13$2,821

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia 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, Cheapflights users made 2,558,603 searches. Data last updated Wrzesień 15, 2025.
Use the filters below to find and compare flights from Philadelphia to Trieste that are best for you.

Fly from

Philadelphia

Fly to

Trieste

Route

Depart

Return

Price

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

wt. 11/11

5:40 pm-2:00 pm

1 stop14h 20m

Trieste Ronchi dei Legionari

wt. 11/18

6:25 am-4:05 pm

1 stop15h 40m

$594

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

wt. 11/11

5:40 pm-2:00 pm

1 stop14h 20m

Trieste Ronchi dei Legionari

wt. 11/18

6:25 am-2:47 pm

2 stops14h 22m

$602

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

czw. 2/12

4:35 pm-2:05 pm

2 stops15h 30m

Trieste Ronchi dei Legionari

śr. 2/18

2:40 pm-10:56 pm

2 stops14h 16m

$641

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

pt. 12/5

12:37 pm-6:30 pm

2 stops23h 53m

Trieste Ronchi dei Legionari

wt. 12/9

3:15 pm-12:50 am

2 stops39h 35m

$763

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

czw. 2/12

3:05 pm-2:30 pm

2 stops17h 25m

Trieste Ronchi dei Legionari

czw. 2/19

7:15 pm-7:04 pm

2 stops29h 49m

$1,246

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

czw. 2/12

3:05 pm-2:30 pm

2 stops17h 25m

Trieste Ronchi dei Legionari

wt. 2/17

7:15 pm-7:04 pm

2 stops29h 49m

$1,271

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

sob. 12/27

4:35 pm-10:25 am

2 stops35h 50m

Trieste Ronchi dei Legionari

sob. 1/10

6:35 am-10:56 pm

2 stops22h 21m

$1,632

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

wt. 10/7

5:35 pm-2:05 pm

1 stop14h 30m

$520

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from Philadelphia to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Trieste. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Philadelphia to Trieste?

    A quick flight from Philadelphia to Trieste can take about 14h 20m. Lufthansa provides one of the quickest options available for as low as $594. The distance between Philadelphia and Trieste is about 4271 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Philadelphia to Trieste that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Trieste?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Trieste.

  • Can I find deals for business class flights from Philadelphia to Trieste?

    Yes. Cheapflights offers flight deals from Philadelphia to Trieste by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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