$464 Cheap Flights from Portland (PDX) to Trieste (TRS)

View $464 flight on Tue, Mar 3, 2026Opens in a new window

Popular airlines from Portland International Airport (PDX) to Friuli Venezia Giulia Airport (TRS)

Cheap Flights from Portland to Trieste (PDX-TRS)

Prices were available within the past 7 days and start at $464 for one-way flights and $541 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, Feb 9 - Fri, Feb 20
PDX
Portland
TRS
Trieste
$541 Roundtrip, found 3 days ago
$541
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Feb 9 from Portland to Trieste, returning Fri, Feb 20, priced at $541 found 3 days ago
United
Fri, Feb 6 - Fri, Feb 20
PDX
Portland
TRS
Trieste
$545 Roundtrip, found 3 days ago
$545
Roundtrip
found 3 days ago
Select United flight, departing Fri, Feb 6 from Portland to Trieste, returning Fri, Feb 20, priced at $545 found 3 days ago
Air Canada
Tue, Mar 3 - Tue, Mar 17
PDX
Portland
TRS
Trieste
$550 Roundtrip, found 5 days ago
$550
Roundtrip
found 5 days ago
Select Air Canada flight, departing Tue, Mar 3 from Portland to Trieste, returning Tue, Mar 17, priced at $550 found 5 days ago
Air Canada
Mon, Feb 16 - Mon, Mar 2
PDX
Portland
TRS
Trieste
$551 Roundtrip, found 3 days ago
$551
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Feb 16 from Portland to Trieste, returning Mon, Mar 2, priced at $551 found 3 days ago
Lufthansa
Tue, Mar 3 - Tue, Mar 17
PDX
Portland
TRS
Trieste
$555 Roundtrip, found 5 days ago
$555
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Tue, Mar 3 from Portland to Trieste, returning Tue, Mar 17, priced at $555 found 5 days ago
United
Mon, Jan 19 - Tue, Feb 3
PDX
Portland
TRS
Trieste
$556 Roundtrip, found 3 days ago
$556
Roundtrip
found 3 days ago
Select United flight, departing Mon, Jan 19 from Portland to Trieste, returning Tue, Feb 3, priced at $556 found 3 days ago
Air Canada
Tue, Mar 3 - Tue, Mar 17
PDX
Portland
TRS
Trieste
$556 Roundtrip, found 5 days ago
$556
Roundtrip
found 5 days ago
Select Air Canada flight, departing Tue, Mar 3 from Portland to Trieste, returning Tue, Mar 17, priced at $556 found 5 days ago
Lufthansa
Tue, Mar 3 - Tue, Mar 17
PDX
Portland
TRS
Trieste
$560 Roundtrip, found 5 days ago
$560
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Tue, Mar 3 from Portland to Trieste, returning Tue, Mar 17, priced at $560 found 5 days ago
KLM
Mon, Jan 19 - Mon, Feb 2
PDX
Portland
TRS
Trieste
$619 Roundtrip, found 3 days ago
$619
Roundtrip
found 3 days ago
Select KLM flight, departing Mon, Jan 19 from Portland to Trieste, returning Mon, Feb 2, priced at $619 found 3 days ago
Icelandair
Tue, Apr 21 - Tue, May 19
PDX
Portland
TRS
Trieste
$957 Roundtrip, found 18 hours ago
$957
Roundtrip
found 18 hours ago
Select Icelandair flight, departing Tue, Apr 21 from Portland to Trieste, returning Tue, May 19, priced at $957 found 18 hours ago
Flights from Portland (PDX) to Trieste (TRS)
Origin airport
Portland Intl.
Destination airport
Friuli Venezia Giulia
Airlines serving
Brussels Airlines, Icelandair, Lufthansa
Roundtrip price
$540
Distance
5577 mi

Portland to Trieste Flights

The cheapest times to fly from Portland 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 Portland to Trieste are during the month of February. You can find some of the cheapest flights from Portland to Trieste with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Trieste

Sunday is one of the best days to book for cheap flights from Portland 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 Portland 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 Portland to Trieste in 2026. You can also book with separate airlines for your outbound and return journeys, from $464 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 Portland 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 Portland 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 Portland Intl. Airport (PDX) to Friuli Venezia Giulia Airport (TRS) cost?
Lock in a cheap one-way flight from $464 or cheap return flight from $541 from Portland Intl. Airport (PDX) to Friuli Venezia Giulia Airport (TRS) 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 Portland Intl. Airport (PDX) to Friuli Venezia Giulia Airport (TRS)?
Traveling in February is a great way to save, as it's the cheapest month for flights between PDX and TRS. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Friuli Venezia Giulia Airport (TRS)?
To find the cheapest airline that'll fly you from PDX to TRS, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Portland Intl. Airport (PDX) to Friuli Venezia Giulia Airport (TRS)?
There are no daily direct flights available from Portland Intl. Airport (PDX) to Friuli Venezia Giulia Airport (TRS). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from PDX to TRS?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to Friuli Venezia Giulia Airport (TRS)?
To avoid possible delays on the Portland Intl. Airport (PDX) to Friuli Venezia Giulia Airport (TRS) route, fly before 3 PM. Departures after this time have a 22% higher chance of being 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 Portland Intl. Airport (PDX) to Friuli Venezia Giulia Airport (TRS) last-minute?
Last-minute bookings from PDX to TRS are usually more expensive. To lock in the best prices, start searching for flights ahead of time. That said, if your travel plans are flexible, it's possible to score a cheap fare just before your departure.
Is it cheaper to book a PDX to TRS flight and hotel package?
Opting for a PDX to TRS flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our impressive range of stays and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Friuli Venezia Giulia Airport (TRS)?
Typically, you can modify or cancel your PDX to TRS flight. However, there may be additional fees, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want more information, go to our Customer Service portal.

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*Available to One Key members.