$459 Cheap Flights from Pittsburgh (PIT) to Trieste (TRS)

View $459 flight on Mon, Dec 29, 2025Opens in a new window

Popular airlines from Pittsburgh Intl. Airport (PIT) to Friuli Venezia Giulia Airport (TRS)

Cheap Flights from Pittsburgh to Trieste (PIT-TRS)

Prices were available within the past 7 days and start at $459 for one-way flights and $689 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Fri, Dec 5 - Sat, Jan 24
PIT
Pittsburgh
TRS
Trieste
$689 Roundtrip, found 2 days ago
$689
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Dec 5 from Pittsburgh to Trieste, returning Sat, Jan 24, priced at $689 found 2 days ago
Lufthansa
Fri, Dec 5 - Sat, Jan 24
PIT
Pittsburgh
TRS
Trieste
$694 Roundtrip, found 2 days ago
$694
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Dec 5 from Pittsburgh to Trieste, returning Sat, Jan 24, priced at $694 found 2 days ago
United
Wed, Dec 31 - Thu, Jan 8
PIT
Pittsburgh
TRS
Trieste
$704 Roundtrip, found 3 days ago
$704
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 31 from Pittsburgh to Trieste, returning Thu, Jan 8, priced at $704 found 3 days ago
Lufthansa
Fri, Dec 5 - Sat, Jan 24
PIT
Pittsburgh
TRS
Trieste
$708 Roundtrip, found 2 days ago
$708
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Dec 5 from Pittsburgh to Trieste, returning Sat, Jan 24, priced at $708 found 2 days ago
Lufthansa
Fri, Dec 5 - Sat, Jan 24
PIT
Pittsburgh
TRS
Trieste
$714 Roundtrip, found 2 days ago
$714
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Dec 5 from Pittsburgh to Trieste, returning Sat, Jan 24, priced at $714 found 2 days ago
Lufthansa
Thu, Jan 1 - Thu, Jan 8
PIT
Pittsburgh
TRS
Trieste
$723 Roundtrip, found 3 days ago
$723
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Thu, Jan 1 from Pittsburgh to Trieste, returning Thu, Jan 8, priced at $723 found 3 days ago
Lufthansa
Fri, Dec 5 - Sat, Jan 24
PIT
Pittsburgh
TRS
Trieste
$760 Roundtrip, found 2 days ago
$760
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Dec 5 from Pittsburgh to Trieste, returning Sat, Jan 24, priced at $760 found 2 days ago
United
Mon, Dec 29 - Thu, Jan 8
PIT
Pittsburgh
TRS
Trieste
$766 Roundtrip, found 3 days ago
$766
Roundtrip
found 3 days ago
Select United flight, departing Mon, Dec 29 from Pittsburgh to Trieste, returning Thu, Jan 8, priced at $766 found 3 days ago
United
Wed, Dec 31 - Tue, Jan 6
PIT
Pittsburgh
TRS
Trieste
$794 Roundtrip, found 3 days ago
$794
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 31 from Pittsburgh to Trieste, returning Tue, Jan 6, priced at $794 found 3 days ago
Lufthansa
Fri, Dec 5 - Sat, Jan 24
PIT
Pittsburgh
TRS
Trieste
$798 Roundtrip, found 2 days ago
$798
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Dec 5 from Pittsburgh to Trieste, returning Sat, Jan 24, priced at $798 found 2 days ago
Flights from Pittsburgh (PIT) to Trieste (TRS)
Origin airport
Pittsburgh Intl.
Destination airport
Friuli Venezia Giulia
Airlines serving
Brussels Airlines, Lufthansa, United
Roundtrip price
$689
Distance
4453 mi

Pittsburgh to Trieste Flights

The cheapest times to fly from Pittsburgh to Trieste

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 Pittsburgh to Trieste are during the month of December. You can find some of the cheapest flights from Pittsburgh to Trieste with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Pittsburgh to Trieste

Sunday is one of the best days to book for cheap flights from Pittsburgh to Trieste: 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 Pittsburgh to Trieste

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 Pittsburgh to Trieste in 2025. You can also book with separate airlines for your outbound and return journeys, from $459 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 Pittsburgh to Trieste 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 Pittsburgh to Trieste 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.

 

Frequently asked questions

How much does a flight from Pittsburgh Intl. Airport (PIT) to Friuli Venezia Giulia Airport (TRS) cost?
Get a cheap one-way flight from $459 or cheap return flight from $689 from Pittsburgh Intl. Airport (PIT) to Friuli Venezia Giulia Airport (TRS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Pittsburgh Intl. Airport (PIT) to Friuli Venezia Giulia Airport (TRS)?
The cheapest month to fly from PIT to TRS is December, when there's less demand. Off-peak season is generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Pittsburgh Intl. Airport (PIT) to Friuli Venezia Giulia Airport (TRS)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest PIT to TRS flight.
How many flights per day from Pittsburgh Intl. Airport (PIT) to Friuli Venezia Giulia Airport (TRS)?
There aren't any daily direct flights departing from Pittsburgh Intl. Airport (PIT) to Friuli Venezia Giulia Airport (TRS). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from PIT to TRS?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Pittsburgh Intl. Airport (PIT) to Friuli Venezia Giulia Airport (TRS)?
Book a flight from Pittsburgh Intl. Airport (PIT) to Friuli Venezia Giulia Airport (TRS) that leaves before 3 PM to reduce the risk of cancellations and delays. Later departures have a 22% higher chance of being canceled, on average.**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 Pittsburgh Intl. Airport (PIT) to Friuli Venezia Giulia Airport (TRS) last-minute?
Booking your ticket from PIT to TRS shortly before your getaway is generally more expensive. However, if you're flexible with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a PIT to TRS flight and hotel package?
You'll generally save money by securing a PIT to TRS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've chosen your ideal flights and accommodations, consider adding extras including tours, activities and car rentals.
Can I cancel or change the date of my flight from Pittsburgh Intl. Airport (PIT) to Friuli Venezia Giulia Airport (TRS)?
It's generally possible to reschedule or cancel your PIT to TRS flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.