$976+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — TRS
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Trieste with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Trieste
Cheapest
Best
Last-minute
One-way
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 September 17, 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 September 17, 2026.
This Expedia deal was found by Cheapflights users on 9/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:34 pm -
2 stops35h 51m
Fri 11/63:15 pm -
2 stops36h 57m
Deal found 9/14![Multiple Airlines logo]()
$1,107
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 10/305:00 am -
2 stops45h 25m
Fri 11/66:35 am -
3 stops44h 49m
Deal found 9/14![United Airlines logo]()
$1,303
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 September 17, 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 September 17, 2026.
This Expedia deal was found by Cheapflights users on 9/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:34 pm -
2 stops35h 51m
Fri 11/63:15 pm -
2 stops36h 57m
Deal found 9/14![Multiple Airlines logo]()
$1,107
This United Airlines deal was found by Cheapflights users on 9/16. 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 3/110:59 pm -
2 stops26h 26m
Thu 3/46:35 am -
2 stops21h 42m
Deal found 9/16![United Airlines logo]()
$1,127
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 10/309:00 am -
3 stops41h 25m
Fri 11/66:35 am -
3 stops44h 49m
Deal found 9/14![United Airlines logo]()
$1,723
Last-minute flights from Portland to TriesteDiscover last-minute flight deals from Portland to Trieste. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Trieste. Data last updated September 17, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 9/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:34 pm -
2 stops35h 51m
Fri 11/63:15 pm -
2 stops36h 57m
Deal found 9/14![Multiple Airlines logo]()
$1,107
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 10/305:00 am -
2 stops45h 25m
Fri 11/66:35 am -
3 stops44h 49m
Deal found 9/14![United Airlines logo]()
$1,303
One-way flights from Portland to TriesteSearch for one-way flight options from Portland to Trieste. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Portland to Trieste. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 10/157:02 am -
2 stops18h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$976
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 September 17, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $1,107 (Expedia) |
One-way from | $976 (United Airlines) |
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 September 17, 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 10/15
7:02 am-10:25 am
2 stops18h 23m
Trieste Ronchi dei Legionari
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$976
PortlandTrieste
PDX Portland - TRS Trieste Ronchi dei Legionari
PDXTRS
Portland
Fri 10/30
2:34 pm-10:25 am
2 stops35h 51m
Trieste Ronchi dei Legionari
Fri 11/6
3:15 pm-7:12 pm
2 stops36h 57m
$1,107
PortlandTrieste
PDX Portland - TRS Trieste Ronchi dei Legionari
PDXTRS
Portland
Mon 3/1
10:59 pm-10:25 am
2 stops26h 26m
Trieste Ronchi dei Legionari
Thu 3/4
6:35 am-7:17 pm
2 stops21h 42m
$1,127
PortlandTrieste
PDX Portland - TRS Trieste Ronchi dei Legionari
PDXTRS
Portland
Fri 10/30
9:00 am-10:25 am
3 stops41h 25m
Trieste Ronchi dei Legionari
Fri 11/6
6:35 am-6:24 pm
3 stops44h 49m
$1,723
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
Find useful and relevant information for your journey from Portland to Trieste. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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