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.

$543 Cheap Flights from Portland to Trieste in 2025/26

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1:14 pm - 2:00 pmPDX-TRS

15h 46m2 stops

6:15 am - 9:15 pmTRS-PDX

24h 00m2 stops

$543Lufthansa

Find Deal

Tue, Dec 2 - Tue, Dec 9

10:52 am - 10:40 pmPDX-TRS

26h 48m2 stops

3:00 pm - 6:40 pmTRS-PDX

36h 40m2 stops

$772Lufthansa

Find Deal

Wed, Nov 19 - Sun, Nov 23

2:45 pm - 9:10 pmPDX-TRS

21h 25m3 stops

7:15 pm - 5:00 pmTRS-PDX

30h 45m3 stops

$780Multiple Airlines

Find Deal

Tue, Dec 2 - Tue, Dec 9

10:52 am - 10:40 pmPDX-TRS

26h 48m2 stops

3:00 pm - 10:36 pmTRS-PDX

40h 36m2 stops

$949Lufthansa

Find Deal

Wed, Nov 19 - Sun, Nov 23

7:00 am - 10:40 pmPDX-TRS

30h 40m2 stops

3:00 pm - 6:40 pmTRS-PDX

36h 40m2 stops

$1,062Lufthansa

Find Deal

Wed, Nov 19 - Sun, Nov 23

11:59 pm - 10:25 amPDX-TRS

25h 26m2 stops

6:35 am - 6:45 pmTRS-PDX

45h 10m3 stops

$1,146United Airlines

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Tue, Dec 2 - Tue, Dec 9

11:59 pm - 10:25 amPDX-TRS

25h 26m2 stops

6:35 am - 12:13 pmTRS-PDX

38h 38m3 stops

$1,294United Airlines

Find Deal

Wed, Nov 19 - Sun, Nov 23

11:59 pm - 10:25 amPDX-TRS

25h 26m2 stops

6:35 am - 12:13 pmTRS-PDX

38h 38m3 stops

$1,394United Airlines

Find Deal

Wed, Nov 19 - Sun, Nov 23

Lufthansa flights from Portland to Trieste

Our best Lufthansa deals on Portland to Trieste flight tickets

Lufthansa

Dec 2

PDX1:14 pmPortland

15h 46m

2 stops

TRS2:00 pmTrieste Ronchi dei Legionari

Dec 9

TRS6:15 amTrieste Ronchi dei Legionari

24h 00m

2 stops

PDX9:15 pmPortland

$543

Find similar

Lufthansa

Nov 19

PDX10:52 amPortland

26h 48m

2 stops

TRS10:40 pmTrieste Ronchi dei Legionari

Nov 23

TRS3:00 pmTrieste Ronchi dei Legionari

36h 40m

2 stops

PDX6:40 pmPortland

$772

Find similar

Lufthansa

Nov 19

PDX10:52 amPortland

26h 48m

2 stops

TRS10:40 pmTrieste Ronchi dei Legionari

Nov 23

TRS3:00 pmTrieste Ronchi dei Legionari

40h 36m

2 stops

PDX10:36 pmPortland

$949

Find similar

United Airlines flights from Portland to Trieste

Our best United Airlines deals on Portland to Trieste flight tickets

United Airlines

Dec 2

PDX11:59 pmPortland

25h 26m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Dec 9

TRS6:35 amTrieste Ronchi dei Legionari

45h 10m

3 stops

PDX6:45 pmPortland

$1,146

Find similar

United Airlines

Nov 19

PDX11:59 pmPortland

25h 26m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Nov 23

TRS6:35 amTrieste Ronchi dei Legionari

38h 38m

3 stops

PDX12:13 pmPortland

$1,294

Find similar

United Airlines

Nov 19

PDX11:59 pmPortland

25h 26m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Nov 23

TRS6:35 amTrieste Ronchi dei Legionari

38h 38m

3 stops

PDX12:13 pmPortland

$1,394

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Tue 12/2

1:14 pm-2:00 pm

2 stops15h 46m

Trieste Ronchi dei Legionari

Tue 12/9

6:15 am-9:15 pm

2 stops24h 00m

$543

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Wed 11/19

10:52 am-10:40 pm

2 stops26h 48m

Trieste Ronchi dei Legionari

Sun 11/23

3:00 pm-6:40 pm

2 stops36h 40m

$772

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Tue 12/2

2:45 pm-9:10 pm

3 stops21h 25m

Trieste Ronchi dei Legionari

Tue 12/9

7:15 pm-5:00 pm

3 stops30h 45m

$780

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Wed 11/19

10:52 am-10:40 pm

2 stops26h 48m

Trieste Ronchi dei Legionari

Sun 11/23

3:00 pm-10:36 pm

2 stops40h 36m

$949

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Wed 11/19

7:00 am-10:40 pm

2 stops30h 40m

Trieste Ronchi dei Legionari

Sun 11/23

3:00 pm-6:40 pm

2 stops36h 40m

$1,062

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Tue 12/2

11:59 pm-10:25 am

2 stops25h 26m

Trieste Ronchi dei Legionari

Tue 12/9

6:35 am-6:45 pm

3 stops45h 10m

$1,146

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Wed 11/19

11:59 pm-10:25 am

2 stops25h 26m

Trieste Ronchi dei Legionari

Sun 11/23

6:35 am-12:13 pm

3 stops38h 38m

$1,294

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Wed 11/19

11:59 pm-10:25 am

2 stops25h 26m

Trieste Ronchi dei Legionari

Sun 11/23

6:35 am-12:13 pm

3 stops38h 38m

$1,394

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Thu 3/19

11:55 pm-10:25 am

2 stops26h 30m

$1,102

Flights are sorted by cheapest round-trip flights first.

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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?

British Airways, Delta and KLM are the top three most popular airlines that fly to Trieste from Portland according to our data. British Airways is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 7 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

Direct flights	None

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

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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 15h 46m.
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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Why should I use momondo to find a flight deal from Portland to Trieste?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Trieste. momondo saves you time and could save you money on your trip.

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 $543

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Trieste departing on 12/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

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Filter for what you want

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Price Alerts

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Find the cheapest flights from Portland to Trieste

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Lufthansa flights from Portland to Trieste

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United Airlines flights from Portland to Trieste

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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?

When to book flights from Portland to Trieste

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

Direct flights

How far is Portland to Trieste Ronchi dei Legionari by plane?

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

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

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

Traveling to a place near Trieste?

Why use momondo?

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

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

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

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

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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