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

Prices for flights from Portland Airport to Trieste Ronchi dei Legionari Airport were last updated today.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Trieste Ronchi dei Legionari Airport.

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

The travel and health documents required for your trip to Trieste Ronchi dei Legionari Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Trieste Ronchi dei Legionari Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$429 Cheap Flights from Portland to Trieste in 2026

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One-way

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Cheap round-trip flights

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10:59 pm - 10:25 amPDX Portland-TRS Trieste Ronchi dei Legionari

26h 26m2 stops Chicago O'Hare Intl Rome Fiumicino

6:35 am - 11:12 pmTRS Trieste Ronchi dei Legionari-PDX Portland

25h 37m2 stops Rome Fiumicino Chicago O'Hare Intl

$1,122United Airlines

Sun, Dec 6 - Wed, Dec 9

2:27 pm - 1:45 pmPDX Portland-TRS Trieste Ronchi dei Legionari

38h 18m2 stops Chicago O'Hare Intl Frankfurt am Main

2:45 pm - 7:06 pmTRS Trieste Ronchi dei Legionari-PDX Portland

37h 21m2 stops Frankfurt am Main Vancouver Intl

$1,130Lufthansa

Sat, Oct 3 - Sat, Oct 10

10:45 am - 10:25 amPDX Portland-TRS Trieste Ronchi dei Legionari

38h 40m3 stops Chicago O'Hare Intl Newark Rome Fiumicino

6:35 am - 7:07 pmTRS Trieste Ronchi dei Legionari-PDX Portland

21h 32m2 stops Rome Fiumicino Chicago O'Hare Intl

$1,153United Airlines

Sun, Dec 6 - Wed, Dec 9

9:00 am - 2:30 pmPDX Portland-TRS Trieste Ronchi dei Legionari

20h 30m2 stops San Francisco Rome Fiumicino

6:35 am - 8:21 pmTRS Trieste Ronchi dei Legionari-PDX Portland

22h 46m2 stops Rome Fiumicino San Francisco

$1,180ITA Airways

Sun, Sep 6 - Tue, Sep 15

12:45 pm - 1:55 pmPDX Portland-TRS Trieste Ronchi dei Legionari

16h 10m2 stops Denver Intl Frankfurt am Main

6:20 am - 7:11 pmTRS Trieste Ronchi dei Legionari-PDX Portland

21h 51m2 stops Frankfurt am Main Vancouver Intl

$1,195Lufthansa

Mon, Aug 31 - Tue, Sep 15

10:50 am - 10:15 pmPDX Portland-TRS Trieste Ronchi dei Legionari

26h 25m2 stops Denver Intl Frankfurt am Main

6:10 am - 7:11 pmTRS Trieste Ronchi dei Legionari-PDX Portland

22h 01m2 stops Frankfurt am Main Vancouver Intl

$1,222Lufthansa

Tue, Sep 1 - Fri, Sep 11

9:00 am - 10:55 pmPDX Portland-TRS Trieste Ronchi dei Legionari

28h 55m2 stops San Francisco Rome Fiumicino

7:15 pm - 8:21 pmTRS Trieste Ronchi dei Legionari-PDX Portland

34h 06m2 stops Rome Fiumicino San Francisco

$1,230ITA Airways

Thu, Sep 10 - Mon, Sep 14

11:15 am - 10:25 pmPDX Portland-TRS Trieste Ronchi dei Legionari

26h 10m2 stops San Francisco Frankfurt am Main

6:10 am - 10:52 pmTRS Trieste Ronchi dei Legionari-PDX Portland

25h 42m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,232Lufthansa

Wed, Sep 9 - Fri, Sep 18

12:45 pm - 1:55 pmPDX Portland-TRS Trieste Ronchi dei Legionari

16h 10m2 stops Denver Intl Frankfurt am Main

6:15 am - 7:11 pmTRS Trieste Ronchi dei Legionari-PDX Portland

21h 56m2 stops Frankfurt am Main Vancouver Intl

$1,255Lufthansa

Mon, Aug 31 - Sat, Sep 12

12:45 pm - 1:55 pmPDX Portland-TRS Trieste Ronchi dei Legionari

16h 10m2 stops Denver Intl Frankfurt am Main

6:10 am - 9:05 pmTRS Trieste Ronchi dei Legionari-PDX Portland

23h 55m2 stops Frankfurt am Main Denver Intl

$1,265Lufthansa

Mon, Aug 31 - Mon, Sep 14

Cheap last minute flights

Enter your travel dates to find the best prices.

3:30 pm - 10:15 pmPDX Portland-TRS Trieste Ronchi dei Legionari

45h 45m2 stops Vancouver Intl Frankfurt am Main

6:10 am - 7:11 pmTRS Trieste Ronchi dei Legionari-PDX Portland

22h 01m2 stops Frankfurt am Main Vancouver Intl

$1,096Lufthansa

Sat, Aug 22 - Sun, Aug 30

2:27 pm - 10:25 pmPDX Portland-TRS Trieste Ronchi dei Legionari

22h 58m2 stops Chicago O'Hare Intl Frankfurt am Main

6:10 am - 7:11 pmTRS Trieste Ronchi dei Legionari-PDX Portland

22h 01m2 stops Frankfurt am Main Vancouver Intl

$1,100Lufthansa

Mon, Aug 24 - Sun, Aug 30

3:30 pm - 10:15 pmPDX Portland-TRS Trieste Ronchi dei Legionari

45h 45m2 stops Vancouver Intl Frankfurt am Main

6:10 am - 12:37 amTRS Trieste Ronchi dei Legionari-PDX Portland

27h 27m2 stops Frankfurt am Main San Francisco

$1,106Lufthansa

Sat, Aug 22 - Mon, Aug 31

2:27 pm - 10:25 pmPDX Portland-TRS Trieste Ronchi dei Legionari

22h 58m2 stops Chicago O'Hare Intl Frankfurt am Main

6:10 am - 10:52 pmTRS Trieste Ronchi dei Legionari-PDX Portland

25h 42m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,110Lufthansa

Mon, Aug 24 - Mon, Aug 31

3:30 pm - 10:15 pmPDX Portland-TRS Trieste Ronchi dei Legionari

45h 45m2 stops Vancouver Intl Frankfurt am Main

2:45 pm - 7:11 pmTRS Trieste Ronchi dei Legionari-PDX Portland

37h 26m2 stops Frankfurt am Main Vancouver Intl

$1,116Lufthansa

Sat, Aug 22 - Sat, Aug 29

3:30 pm - 10:15 pmPDX Portland-TRS Trieste Ronchi dei Legionari

45h 45m2 stops Vancouver Intl Frankfurt am Main

6:15 am - 9:05 pmTRS Trieste Ronchi dei Legionari-PDX Portland

23h 50m2 stops Frankfurt am Main Denver Intl

$1,142Lufthansa

Sat, Aug 22 - Thu, Sep 3

2:27 pm - 10:25 pmPDX Portland-TRS Trieste Ronchi dei Legionari

22h 58m2 stops Chicago O'Hare Intl Frankfurt am Main

6:15 am - 12:30 amTRS Trieste Ronchi dei Legionari-PDX Portland

27h 15m2 stops Frankfurt am Main San Francisco

$1,146Lufthansa

Mon, Aug 24 - Thu, Sep 3

10:10 am - 2:00 pmPDX Portland-TRS Trieste Ronchi dei Legionari

18h 50m2 stops Vancouver Intl Frankfurt am Main

6:10 am - 7:11 pmTRS Trieste Ronchi dei Legionari-PDX Portland

22h 01m2 stops Frankfurt am Main Vancouver Intl

$1,155Lufthansa

Wed, Aug 26 - Sun, Aug 30

10:10 am - 2:00 pmPDX Portland-TRS Trieste Ronchi dei Legionari

18h 50m2 stops Vancouver Intl Frankfurt am Main

6:10 am - 6:53 pmTRS Trieste Ronchi dei Legionari-PDX Portland

21h 43m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,165Lufthansa

Wed, Aug 26 - Mon, Aug 31

9:00 am - 10:55 pmPDX Portland-TRS Trieste Ronchi dei Legionari

28h 55m2 stops San Francisco Rome Fiumicino

6:35 am - 8:59 pmTRS Trieste Ronchi dei Legionari-PDX Portland

23h 24m2 stops Rome Fiumicino San Francisco

$1,170ITA Airways

Sat, Aug 22 - Fri, Aug 28

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ITA Airways flights from Portland to Trieste

Our best ITA Airways deals on Portland to Trieste flight tickets

ITA Airways

Aug 22

PDX9:00 amPortland

28h 55m

2 stops

TRS10:55 pmTrieste Ronchi dei Legionari

Aug 28

TRS6:35 amTrieste Ronchi dei Legionari

23h 24m

2 stops

PDX8:59 pmPortland

$1,170

ITA Airways

Sep 6

PDX9:00 amPortland

24h 30m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Sep 14

TRS7:15 pmTrieste Ronchi dei Legionari

34h 06m

2 stops

PDX8:21 pmPortland

$1,180

ITA Airways

Sep 10

PDX9:00 amPortland

28h 55m

2 stops

TRS10:55 pmTrieste Ronchi dei Legionari

Sep 14

TRS7:15 pmTrieste Ronchi dei Legionari

34h 06m

2 stops

PDX8:21 pmPortland

$1,230

Lufthansa flights from Portland to Trieste

Our best Lufthansa deals on Portland to Trieste flight tickets

Lufthansa

Aug 22

PDX3:30 pmPortland

45h 45m

2 stops

TRS10:15 pmTrieste Ronchi dei Legionari

Aug 30

TRS6:10 amTrieste Ronchi dei Legionari

22h 01m

2 stops

PDX7:11 pmPortland

$1,096

Lufthansa

Aug 24

PDX2:27 pmPortland

22h 58m

2 stops

TRS10:25 pmTrieste Ronchi dei Legionari

Aug 30

TRS6:10 amTrieste Ronchi dei Legionari

22h 01m

2 stops

PDX7:11 pmPortland

$1,100

Lufthansa

Aug 22

PDX3:30 pmPortland

45h 45m

2 stops

TRS10:15 pmTrieste Ronchi dei Legionari

Aug 31

TRS6:10 amTrieste Ronchi dei Legionari

27h 27m

2 stops

PDX12:37 amPortland

$1,106

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Sun 12/6

10:59 pm-10:25 am

2 stops26h 26m

Trieste Ronchi dei Legionari

Wed 12/9

6:35 am-11:12 pm

2 stops25h 37m

$1,122

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Sat 10/3

2:27 pm-1:45 pm

2 stops38h 18m

Trieste Ronchi dei Legionari

Sat 10/10

2:45 pm-7:06 pm

2 stops37h 21m

$1,130

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Sun 12/6

10:45 am-10:25 am

3 stops38h 40m

Trieste Ronchi dei Legionari

Wed 12/9

6:35 am-7:07 pm

2 stops21h 32m

$1,153

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Sun 9/6

9:00 am-2:30 pm

2 stops20h 30m

Trieste Ronchi dei Legionari

Tue 9/15

6:35 am-8:21 pm

2 stops22h 46m

$1,180

Quickest round-trip

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Mon 8/31

12:45 pm-1:55 pm

2 stops16h 10m

Trieste Ronchi dei Legionari

Tue 9/15

6:20 am-7:11 pm

2 stops21h 51m

$1,195

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Tue 9/1

10:50 am-10:15 pm

2 stops26h 25m

Trieste Ronchi dei Legionari

Fri 9/11

6:10 am-7:11 pm

2 stops22h 01m

$1,222

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Thu 9/10

9:00 am-10:55 pm

2 stops28h 55m

Trieste Ronchi dei Legionari

Mon 9/14

7:15 pm-8:21 pm

2 stops34h 06m

$1,230

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Wed 9/9

11:15 am-10:25 pm

2 stops26h 10m

Trieste Ronchi dei Legionari

Fri 9/18

6:10 am-10:52 pm

2 stops25h 42m

$1,232

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Mon 8/31

12:45 pm-1:55 pm

2 stops16h 10m

Trieste Ronchi dei Legionari

Sat 9/12

6:15 am-7:11 pm

2 stops21h 56m

$1,255

PortlandTrieste

PDX Portland - TRS Trieste Ronchi dei Legionari

PDXTRS

Portland

Mon 8/31

12:45 pm-1:55 pm

2 stops16h 10m

Trieste Ronchi dei Legionari

Mon 9/14

6:10 am-9:05 pm

2 stops23h 55m

$1,265

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland 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 Portland to Trieste Ronchi dei Legionari?

United Airlines is the most popular carrier operating from Portland 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 Portland 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.

When to book flights from Portland to Trieste

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Trieste according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland to Trieste (PDX to TRS) flight deals and tips

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

Best Price Found	$429
Fastest flight time	16h 55m
Direct flights	None

The best one-way flight to Trieste from Portland in the past 72 hours is $429. The best round-trip flight deal from Portland to Trieste found on momondo in the last 72 hours is $1,122.

The fastest flight from Portland to Trieste takes 16h 55m

There are no direct flights from Portland to Trieste. There are no popular flight routes from Portland to Trieste.

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Frequently asked questions about flying from Portland to Trieste

How far is Portland to Trieste Ronchi dei Legionari by plane?
The straight-line distance from Portland to Trieste Ronchi dei Legionari is 5597.1 mi. A reasonable flight in good conditions will take 16h 55m.
When did momondo last update prices for flights from Portland Airport to Trieste Ronchi dei Legionari Airport?
Prices for flights from Portland Airport to Trieste Ronchi dei Legionari Airport were last updated today.
How old do you have to be to fly from Portland Airport to Trieste Ronchi dei Legionari Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Trieste Ronchi dei Legionari Airport.
What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?
The travel and health documents required for your trip to Trieste Ronchi dei Legionari Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Trieste Ronchi dei Legionari Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

All flight searches from Portland to Trieste on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Portland and Trieste by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Portland to Trieste flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Portland to Trieste from $429

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Trieste departing on 10/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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