$541 Cheap Flights from Trieste (TRS) to Philadelphia (PHL)

View $541 flight on Thu, Dec 4, 2025Opens in a new window

Popular airlines from Friuli Venezia Giulia Airport (TRS) to Philadelphia Intl. Airport (PHL)

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Cheap Flights from Trieste to Philadelphia (TRS-PHL)

Prices were available within the past 7 days and start at $541 for one-way flights and $705 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Fri, Oct 24 - Sat, Nov 29
TRS
Trieste
PHL
Philadelphia
$705 Roundtrip, found 2 days ago
$705
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Oct 24 from Trieste to Philadelphia, returning Sat, Nov 29, priced at $705 found 2 days ago
Lufthansa
Fri, Oct 24 - Sat, Nov 29
TRS
Trieste
PHL
Philadelphia
$737 Roundtrip, found 2 days ago
$737
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Oct 24 from Trieste to Philadelphia, returning Sat, Nov 29, priced at $737 found 2 days ago
Lufthansa
Fri, Oct 24 - Sat, Nov 29
TRS
Trieste
PHL
Philadelphia
$864 Roundtrip, found 2 days ago
$864
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Oct 24 from Trieste to Philadelphia, returning Sat, Nov 29, priced at $864 found 2 days ago
ITA Airways
Thu, Oct 30 - Sat, Nov 29
TRS
Trieste
PHL
Philadelphia
$920 Roundtrip, found 2 days ago
$920
Roundtrip
found 2 days ago
Select ITA Airways flight, departing Thu, Oct 30 from Trieste to Philadelphia, returning Sat, Nov 29, priced at $920 found 2 days ago
Lufthansa
Fri, Oct 24 - Sat, Nov 29
TRS
Trieste
PHL
Philadelphia
$940 Roundtrip, found 2 days ago
$940
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Oct 24 from Trieste to Philadelphia, returning Sat, Nov 29, priced at $940 found 2 days ago
Lufthansa
Fri, Oct 24 - Sat, Nov 29
TRS
Trieste
PHL
Philadelphia
$946 Roundtrip, found 2 days ago
$946
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Oct 24 from Trieste to Philadelphia, returning Sat, Nov 29, priced at $946 found 2 days ago
ITA Airways
Fri, Oct 24 - Sat, Nov 29
TRS
Trieste
PHL
Philadelphia
$961 Roundtrip, found 2 days ago
$961
Roundtrip
found 2 days ago
Select ITA Airways flight, departing Fri, Oct 24 from Trieste to Philadelphia, returning Sat, Nov 29, priced at $961 found 2 days ago
Lufthansa
Fri, Oct 24 - Sat, Nov 29
TRS
Trieste
PHL
Philadelphia
$964 Roundtrip, found 2 days ago
$964
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Oct 24 from Trieste to Philadelphia, returning Sat, Nov 29, priced at $964 found 2 days ago
ITA Airways
Thu, Oct 30 - Sat, Nov 29
TRS
Trieste
PHL
Philadelphia
$979 Roundtrip, found 2 days ago
$979
Roundtrip
found 2 days ago
Select ITA Airways flight, departing Thu, Oct 30 from Trieste to Philadelphia, returning Sat, Nov 29, priced at $979 found 2 days ago
Air Dolomiti
Fri, Oct 24 - Sat, Nov 29
TRS
Trieste
PHL
Philadelphia
$1,132 Roundtrip, found 2 days ago
$1,132
Roundtrip
found 2 days ago
Select Air Dolomiti flight, departing Fri, Oct 24 from Trieste to Philadelphia, returning Sat, Nov 29, priced at $1,132 found 2 days ago

Frequently asked questions

How much does a flight from Friuli Venezia Giulia Airport (TRS) to Philadelphia Intl. Airport (PHL) cost?
Get a cheap one-way flight from $541 or cheap return flight from $705 from Friuli Venezia Giulia Airport (TRS) to Philadelphia Intl. Airport (PHL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Friuli Venezia Giulia Airport (TRS) to Philadelphia Intl. Airport (PHL)?
The cheapest month to fly from TRS to PHL is October, when there's less demand. Off-peak months are typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Friuli Venezia Giulia Airport (TRS) to Philadelphia Intl. Airport (PHL)?
To find the cheapest airline flying from TRS to PHL, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Friuli Venezia Giulia Airport (TRS) to Philadelphia Intl. Airport (PHL)?
There aren't any daily direct flights departing from Friuli Venezia Giulia Airport (TRS) to Philadelphia Intl. Airport (PHL). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from TRS to PHL?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on various factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Friuli Venezia Giulia Airport (TRS) to Philadelphia Intl. Airport (PHL)?
To avoid potential delays on the Friuli Venezia Giulia Airport (TRS) to Philadelphia Intl. Airport (PHL) route, fly before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Friuli Venezia Giulia Airport (TRS) to Philadelphia Intl. Airport (PHL) last-minute?
Booking your ticket from TRS to PHL right before your journey is generally more expensive. However, if you're flexible with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a TRS to PHL flight and hotel package?
You can save money by booking a TRS to PHL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After choosing your ideal accommodations and flights, consider other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Friuli Venezia Giulia Airport (TRS) to Philadelphia Intl. Airport (PHL)?
If you booked your TRS to PHL flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

Travel information

Travel information

Origin airport
Friuli Venezia Giulia
Destination airport
Philadelphia Intl.
Roundtrip price
$704
Distance
4273 mi

Book with confidence

Book with confidence

Trieste to Philadelphia Flights

The cheapest times to fly from Trieste to Philadelphia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Trieste to Philadelphia are during the month of October. You can find some of the cheapest flights from Trieste to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Trieste to Philadelphia

Sunday is one of the best days to book for cheap flights from Trieste to Philadelphia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Trieste to Philadelphia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Trieste to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $541 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Trieste to Philadelphia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Trieste to Philadelphia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Trieste to Philadelphia Flights

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*Available to One Key members.