Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Oregon to Trieste from $842

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oregon to Trieste departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Oregon to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
7:00 am - 2:30 pmPDX  Portland-TRS Trieste Ronchi dei Legionari
22h 30m2 stops New York John F Kennedy Intl Rome Fiumicino
KLM Logo
3:15 pm - 9:52 pmTRS  Trieste Ronchi dei Legionari-PDX Portland
39h 37m2 stops Rome Fiumicino Atlanta Hartsfield-Jackson
$977KLM
Mon, Nov 2 - Mon, Nov 16
KLM Logo
7:00 am - 2:30 pmPDX  Portland-TRS Trieste Ronchi dei Legionari
22h 30m2 stops New York John F Kennedy Intl Rome Fiumicino
KLM Logo
6:35 am - 9:57 pmTRS  Trieste Ronchi dei Legionari-PDX Portland
24h 22m2 stops Rome Fiumicino New York John F Kennedy Intl
$1,005KLM
Sun, Nov 1 - Tue, Nov 10
Icelandair Logo
3:30 pm - 6:30 pmPDX  Portland-TRS Trieste Ronchi dei Legionari
18h 00m2 stops Reykjavik Keflavik Intl Rome Fiumicino
Icelandair Logo
6:35 am - 5:00 pmTRS  Trieste Ronchi dei Legionari-PDX Portland
19h 25m2 stops Rome Fiumicino Reykjavik Keflavik Intl
$1,027Icelandair
Wed, Oct 21 - Mon, Nov 2
Multiple Airlines Logo
8:15 am - 10:15 pmPDX  Portland-TRS Trieste Ronchi dei Legionari
29h 00m2 stops Chicago O'Hare Intl Frankfurt am Main
Multiple Airlines Logo
6:10 am - 9:31 amTRS  Trieste Ronchi dei Legionari-PDX Portland
36h 21m2 stops Frankfurt am Main Vancouver Intl
$1,096Multiple Airlines
Sun, Sep 6 - Sun, Sep 13
United Airlines Logo
10:56 pm - 10:25 amPDX  Portland-TRS Trieste Ronchi dei Legionari
26h 29m2 stops Newark Rome Fiumicino
United Airlines Logo
6:35 am - 9:21 pmTRS  Trieste Ronchi dei Legionari-PDX Portland
23h 46m2 stops Rome Fiumicino Newark
$1,121United Airlines
Sun, Jan 17 - Thu, Jan 21
United Airlines Logo
10:56 pm - 10:25 amPDX  Portland-TRS Trieste Ronchi dei Legionari
26h 29m2 stops Newark Rome Fiumicino
United Airlines Logo
6:35 am - 9:21 pmTRS  Trieste Ronchi dei Legionari-PDX Portland
23h 46m2 stops Rome Fiumicino Newark
$1,122United Airlines
Sun, Jan 17 - Thu, Jan 21
Multiple Airlines Logo
12:45 pm - 10:25 pmPDX  Portland-TRS Trieste Ronchi dei Legionari
24h 40m3 stops Denver Intl Chicago O'Hare Intl Frankfurt am Main
Multiple Airlines Logo
3:15 pm - 9:13 pmTRS  Trieste Ronchi dei Legionari-PDX Portland
38h 58m2 stops Rome Fiumicino Denver Intl
$1,223Multiple Airlines
Wed, Oct 21 - Mon, Nov 2
United Airlines Logo
5:00 am - 10:25 amPDX  Portland-TRS Trieste Ronchi dei Legionari
20h 25m3 stops Denver Intl Chicago O'Hare Intl Rome Fiumicino
United Airlines Logo
6:35 am - 7:12 pmTRS  Trieste Ronchi dei Legionari-PDX Portland
21h 37m2 stops Rome Fiumicino Chicago O'Hare Intl
$1,229United Airlines
Sun, Nov 1 - Tue, Nov 10
United Airlines Logo
5:36 am - 10:25 amPDX  Portland-TRS Trieste Ronchi dei Legionari
19h 49m3 stops San Francisco Chicago O'Hare Intl Rome Fiumicino
United Airlines Logo
6:35 am - 9:13 pmTRS  Trieste Ronchi dei Legionari-PDX Portland
23h 38m3 stops Rome Fiumicino Chicago O'Hare Intl Denver Intl
$1,251United Airlines
Mon, Nov 2 - Mon, Nov 16
United Airlines Logo
9:00 am - 10:25 amPDX  Portland-TRS Trieste Ronchi dei Legionari
40h 25m3 stops San Francisco Chicago O'Hare Intl Rome Fiumicino
United Airlines Logo
6:35 am - 6:20 pmTRS  Trieste Ronchi dei Legionari-PDX Portland
44h 45m3 stops Rome Fiumicino Denver Intl San Francisco
$1,255United Airlines
Sun, Nov 1 - Tue, Nov 10

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

KLM flights from Oregon to Trieste

Our best KLM deals on Oregon to Trieste flight tickets
KLM
Nov 2
PDX7:00 amPortland
22h 30m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
Nov 16
TRS3:15 pmTrieste Ronchi dei Legionari
39h 37m
2 stops
PDX9:52 pmPortland
$977
KLM
Nov 1
PDX7:00 amPortland
22h 30m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
Nov 10
TRS6:35 amTrieste Ronchi dei Legionari
24h 22m
2 stops
PDX9:57 pmPortland
$1,005

United Airlines flights from Oregon to Trieste

Our best United Airlines deals on Oregon to Trieste flight tickets
United Airlines
Jan 17
PDX10:56 pmPortland
26h 29m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Jan 21
TRS6:35 amTrieste Ronchi dei Legionari
23h 46m
2 stops
PDX9:21 pmPortland
$1,121
United Airlines
Jan 17
PDX10:56 pmPortland
26h 29m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Jan 21
TRS6:35 amTrieste Ronchi dei Legionari
23h 46m
2 stops
PDX9:21 pmPortland
$1,122
United Airlines
Nov 1
PDX5:00 amPortland
20h 25m
3 stops
TRS10:25 amTrieste Ronchi dei Legionari
Nov 10
TRS6:35 amTrieste Ronchi dei Legionari
21h 37m
2 stops
PDX7:12 pmPortland
$1,229

momondo Fare Finder

 
Customize your flight search to find flights from Oregon 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, momondo users made 832,500 searches. Data last updated August 7, 2026.
Use the filters below to find and compare flights from Oregon to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Mon 11/2

7:00 am-2:30 pm

2 stops22h 30m

Trieste Ronchi dei Legionari

Mon 11/16

3:15 pm-9:52 pm

2 stops39h 37m

$977

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Sun 11/1

7:00 am-2:30 pm

2 stops22h 30m

Trieste Ronchi dei Legionari

Tue 11/10

6:35 am-9:57 pm

2 stops24h 22m

$1,005
Quickest round-trip

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Wed 10/21

3:30 pm-6:30 pm

2 stops18h 00m

Trieste Ronchi dei Legionari

Mon 11/2

6:35 am-5:00 pm

2 stops19h 25m

$1,027

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Sun 9/6

8:15 am-10:15 pm

2 stops29h 00m

Trieste Ronchi dei Legionari

Sun 9/13

6:10 am-9:31 am

2 stops36h 21m

$1,096

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Sun 1/17

10:56 pm-10:25 am

2 stops26h 29m

Trieste Ronchi dei Legionari

Thu 1/21

6:35 am-9:21 pm

2 stops23h 46m

$1,121

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Sun 1/17

10:56 pm-10:25 am

2 stops26h 29m

Trieste Ronchi dei Legionari

Thu 1/21

6:35 am-9:21 pm

2 stops23h 46m

$1,122

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Wed 10/21

12:45 pm-10:25 pm

3 stops24h 40m

Trieste Ronchi dei Legionari

Mon 11/2

3:15 pm-9:13 pm

2 stops38h 58m

$1,223

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Sun 11/1

5:00 am-10:25 am

3 stops20h 25m

Trieste Ronchi dei Legionari

Tue 11/10

6:35 am-7:12 pm

2 stops21h 37m

$1,229

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Mon 11/2

5:36 am-10:25 am

3 stops19h 49m

Trieste Ronchi dei Legionari

Mon 11/16

6:35 am-9:13 pm

3 stops23h 38m

$1,251

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Sun 11/1

9:00 am-10:25 am

3 stops40h 25m

Trieste Ronchi dei Legionari

Tue 11/10

6:35 am-6:20 pm

3 stops44h 45m

$1,255

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

See travel insights to Trieste from

How to get the cheapest flight ticket from Oregon to Trieste

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Oregon to Trieste Ronchi dei Legionari?

United Airlines is the most popular carrier operating from Oregon to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

Condor, British Airways and KLM are the top three most popular airlines that fly to Trieste from Oregon according to our data. Condor is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 5 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

Cheap Oregon to Trieste flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oregon to Trieste

Fastest flight time

18h 00m

Direct flights

None
The fastest flight from Oregon to Trieste takes 18h 00m
There are no direct flights from Oregon to Trieste. There are no popular flight routes from Oregon to Trieste.
Search flight deals

Frequently asked questions about flying from Oregon to Trieste

  • When did momondo last update prices for flights from Oregon to Trieste Ronchi dei Legionari Airport?

    Prices for flights from Oregon to Trieste Ronchi dei Legionari Airport refresh daily.

  • How old do you have to be to fly from Oregon to Trieste Ronchi dei Legionari Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Oregon to Trieste Ronchi dei Legionari Airport.

  • What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?

    The necessary travel and health documents for your Trieste Ronchi dei Legionari Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Trieste?

Book flights to Trieste if you plan to visit one of these locations
Udine
Grado

Why use momondo?

Why should I use momondo to find a flight deal from Oregon to Trieste?

It is quick and easy to find Oregon to Trieste flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Trieste that suits you.

Can I find flights from Oregon to Trieste with flexible booking policies on momondo?

Flights from Oregon to Trieste with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Oregon to Trieste?

Once all potential Oregon to Trieste flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Oregon to Trieste right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Trieste from Oregon. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Trieste trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 9/6
Sun 9/13
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Italy

Fly your favorite airline to Trieste

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Condor
British Airways
KLM
Delta
United Airlines