$644 Cheap Flights from Pittsburgh (PIT) to Trieste (TRS)

View $644 flight on Wed, May 6, 2026Opens in a new window

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

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Cheap Flights from Pittsburgh to Trieste (PIT-TRS)

Prices were available within the past 7 days and start at $644 for one-way flights and $558 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Mar 17 - Wed, Mar 25
PIT
Pittsburgh
TRS
Trieste
$558 Roundtrip, found 6 days ago
$558
Roundtrip
found 6 days ago
Select United flight, departing Tue, Mar 17 from Pittsburgh to Trieste, returning Wed, Mar 25, priced at $558 found 6 days ago
Air Canada
Tue, Mar 17 - Wed, Mar 25
PIT
Pittsburgh
TRS
Trieste
$562 Roundtrip, found 6 days ago
$562
Roundtrip
found 6 days ago
Select Air Canada flight, departing Tue, Mar 17 from Pittsburgh to Trieste, returning Wed, Mar 25, priced at $562 found 6 days ago
United
Tue, Mar 17 - Wed, Mar 25
PIT
Pittsburgh
TRS
Trieste
$564 Roundtrip, found 6 days ago
$564
Roundtrip
found 6 days ago
Select United flight, departing Tue, Mar 17 from Pittsburgh to Trieste, returning Wed, Mar 25, priced at $564 found 6 days ago
Lufthansa
Mon, Mar 16 - Tue, Mar 24
PIT
Pittsburgh
TRS
Trieste
$579 Roundtrip, found 6 days ago
$579
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Mon, Mar 16 from Pittsburgh to Trieste, returning Tue, Mar 24, priced at $579 found 6 days ago
United
Mon, Feb 23 - Thu, Mar 12
PIT
Pittsburgh
TRS
Trieste
$630 Roundtrip, found 6 days ago
$630
Roundtrip
found 6 days ago
Select United flight, departing Mon, Feb 23 from Pittsburgh to Trieste, returning Thu, Mar 12, priced at $630 found 6 days ago
Air Canada
Mon, Feb 23 - Thu, Mar 12
PIT
Pittsburgh
TRS
Trieste
$635 Roundtrip, found 6 days ago
$635
Roundtrip
found 6 days ago
Select Air Canada flight, departing Mon, Feb 23 from Pittsburgh to Trieste, returning Thu, Mar 12, priced at $635 found 6 days ago
United
Tue, Mar 17 - Wed, Mar 25
PIT
Pittsburgh
TRS
Trieste
$643 Roundtrip, found 6 days ago
$643
Roundtrip
found 6 days ago
Select United flight, departing Tue, Mar 17 from Pittsburgh to Trieste, returning Wed, Mar 25, priced at $643 found 6 days ago
United
Tue, Mar 17 - Wed, Mar 25
PIT
Pittsburgh
TRS
Trieste
$649 Roundtrip, found 6 days ago
$649
Roundtrip
found 6 days ago
Select United flight, departing Tue, Mar 17 from Pittsburgh to Trieste, returning Wed, Mar 25, priced at $649 found 6 days ago
Lufthansa
Wed, Feb 25 - Tue, Mar 10
PIT
Pittsburgh
TRS
Trieste
$651 Roundtrip, found 6 days ago
$651
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Feb 25 from Pittsburgh to Trieste, returning Tue, Mar 10, priced at $651 found 6 days ago
Brussels Airlines
Sun, Mar 1 - Sun, Mar 15
PIT
Pittsburgh
TRS
Trieste
$1,505 Roundtrip, found 3 days ago
$1,505
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Sun, Mar 1 from Pittsburgh to Trieste, returning Sun, Mar 15, priced at $1,505 found 3 days ago
Flights from Pittsburgh (PIT) to Trieste (TRS)
Origin airport
Pittsburgh Intl.
Destination airport
Friuli Venezia Giulia
Roundtrip price
$558
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 March. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $644 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, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia) cost?
You can find cheap one-way flights from $644 and cheap return flights from $558 Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia) with Expedia. Roundtrip flights usually range from $726 to $3799. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia)?
The cheapest month to fly from PIT to TRS is March when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia)?
Enter PIT to TRS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia)?
JetBlue Airways offers one of the cheapest connecting flights from Pittsburgh Intl. (PIT) to Trieste (TRS) with a layover in John F. Kennedy Intl. (JFK), starting from around $1,246 for a round-trip ticket. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia)?
To find a cheap flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia)?
The earliest flight from Pittsburgh International Airport (PIT) to Trieste (TRS) typically departs at around 6:00 AM. This is a seasonal service active in November, allowing you to start your journey early and make the most of your time in Italy. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia)?
The busiest day for flights from Pittsburgh Intl. (PIT) to Friuli Venezia Giulia (TRS) is a Thursday, with around 30 flights. This gives you plenty of options for your travel plans. Major airlines on this route include United, Delta, and American Airlines.
What are the most popular departure times for flights from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia)?
The most popular departure times for flights from Pittsburgh (PIT) to Trieste (TRS) are in the late afternoon to early evening, from 3pm to 6pm. About 33% of passengers prefer this time window. Many major carriers, including Air Canada, Delta and United Airlines, offer flights during this window. This timing works well because it allows you to travel after a full day of activities in Pittsburgh.
How long does it take to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia)?
Flying from PIT to TRS with a connection usually takes about 14 hours 20 minutes, traveling roughly 4,454 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia)?
Select the "Business class" and "First class" filters when looking for PIT to TRS flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia) flight with Expedia?
It's easy to earn miles on a Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Trieste from Pittsburgh Intl. (PIT)?
If you're planning to travel to Trieste from Pittsburgh Intl. (PIT), you can fly typically into Friuli Venezia Giulia (TRS) Some flights may connect through major hubs like John F. Kennedy Intl. (JFK), O'Hare Intl. (ORD), Washington Dulles Intl. (IAD) before reaching Trieste. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia) at the last minute?
Typically, booking a last minute flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia) flight and hotel package?
Securing a Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia)?
If you booked your Pittsburgh, PA (PIT-Pittsburgh Intl.) to Trieste (TRS-Friuli Venezia Giulia) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket 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, head to our Customer Service portal if you'd like more information.

*Flight schedules are subject to change.

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