$937+ Cheap flights from Portland (PDX) to Trieste (TRS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — TRS
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Portland to TriesteExplore the most affordable flight options available from Portland to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Portland to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This KLM deal was found by Cheapflights users on 10/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:50 am -
2 stops22h 40m
Thu 12/176:35 am -
2 stops24h 32m
Deal found 10/26![KLM logo]()
$937
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/102:45 pm -
3 stops34h 40m
Thu 12/177:15 pm -
3 stops30h 45m
Deal found 10/26![Multiple Airlines logo]()
$1,455
Best flights from Portland to TriesteDiscover carefully curated flight deals from Portland to Trieste that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Portland to Trieste that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This KLM deal was found by Cheapflights users on 10/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:50 am -
2 stops22h 40m
Thu 12/176:35 am -
2 stops24h 32m
Deal found 10/26![KLM logo]()
$937
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/111:30 pm -
2 stops25h 55m
Thu 3/46:35 am -
2 stops24h 46m
Deal found 10/29![United Airlines logo]()
$1,074
Find flight deals from Portland to Trieste
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 October 30, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $937 (KLM) |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland 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 7,457,451 searches. Data last updated October 30, 2026.
Use the filters below to find and compare flights from Portland to Trieste that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PortlandTrieste
PDX Portland - TRS Trieste Ronchi dei Legionari
PDXTRS
Portland
Thu 12/10
6:50 am-2:30 pm
2 stops22h 40m
Trieste Ronchi dei Legionari
Thu 12/17
6:35 am-10:07 pm
2 stops24h 32m
$937
PortlandTrieste
PDX Portland - TRS Trieste Ronchi dei Legionari
PDXTRS
Portland
Mon 3/1
11:30 pm-10:25 am
2 stops25h 55m
Trieste Ronchi dei Legionari
Thu 3/4
6:35 am-10:21 pm
2 stops24h 46m
$1,074
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Portland-Trieste flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Portland-Trieste flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Portland-Trieste flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-Trieste flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Trieste flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Portland to Trieste
Have a flexible travel schedule? Discover the best time to fly to Trieste from Portland with our price prediction graph.
PDX-TRS
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.
Related info for your journey
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