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Trieste

$627+ 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
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$820
(Delta)

One-way from

$627
(Ovago)
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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/289:36 amPHL - TRS
2 stops42h 49mDelta
Mon 8/1811:15 amTRS - PHL
2 stops38h 03mDelta
Deal found 6/11$820
This Lufthansa deal was found by Cheapflights users on 6/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/275:35 pmPHL - TRS
1 stop14h 30mLufthansa
Mon 8/182:45 pmTRS - PHL
1 stop31h 15mLufthansa
Deal found 6/11$928
This Justfly.com deal was found by Cheapflights users on 6/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/285:35 pmPHL - TRS
1 stop14h 30mMultiple Airlines
Sat 8/166:30 amTRS - PHL
2 stops21h 37mMultiple Airlines
Deal found 6/11$1,088
This ITA Airways deal was found by Cheapflights users on 6/11. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/261:25 pmPHL - TRS
2 stops27h 30mITA Airways
Mon 8/187:15 pmTRS - PHL
2 stops32h 09mITA Airways
Deal found 6/11$1,632

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 June 12, 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

Mon 7/28

9:36 am-10:25 am

2 stops42h 49m

Trieste Ronchi dei Legionari

Mon 8/18

11:15 am-7:18 pm

2 stops38h 03m

$820

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Sun 7/27

5:35 pm-2:05 pm

1 stop14h 30m

Trieste Ronchi dei Legionari

Mon 8/18

2:45 pm-4:00 pm

1 stop31h 15m

$928

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Mon 7/28

5:35 pm-2:05 pm

1 stop14h 30m

Trieste Ronchi dei Legionari

Sat 8/16

6:30 am-10:07 pm

2 stops21h 37m

$1,088

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Sat 7/26

1:25 pm-10:55 pm

2 stops27h 30m

Trieste Ronchi dei Legionari

Mon 8/18

7:15 pm-9:24 pm

2 stops32h 09m

$1,632

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Tue 10/7

5:35 pm-2:05 pm

1 stop14h 30m

$627

PhiladelphiaTrieste

PHL - TRS

PHLTRS

Philadelphia

Tue 10/7

10:35 am-6:35 pm

3 stops26h 00m

$755

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Trieste

Rainfall in Trieste by month

Plan your trip to Trieste by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Trieste ranges from 2.4 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. February is typically the driest time to visit Trieste when rainfall is around 2.4 in.

Temperature in Trieste by month

Plan your trip to Trieste by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Trieste, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Trieste

Get insights into the airlines that provide service to Trieste. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Trieste. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,139 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
ITA Airways
6.7
Okay
990 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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.

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