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Cheap flights from Portland to Trieste from $464

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 8/14. 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
0 bags

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Find the cheapest flights from Portland to Trieste

Cheap round-trip flights

Lufthansa Logo
7:00 am - 2:05 pmPDX-TRS
22h 05m2 stops
Lufthansa Logo
2:45 pm - 10:33 pmTRS-PDX
40h 48m2 stops
$723Lufthansa
Find Deal
Wed, Nov 12 - Sun, Nov 16
Lufthansa Logo
7:30 am - 10:45 pmPDX-TRS
30h 15m2 stops
Lufthansa Logo
2:45 pm - 10:33 pmTRS-PDX
40h 48m2 stops
$724Lufthansa
Find Deal
Wed, Nov 12 - Sun, Nov 16
Lufthansa Logo
10:00 am - 10:25 pmPDX-TRS
27h 25m2 stops
Lufthansa Logo
6:30 am - 6:46 pmTRS-PDX
21h 16m2 stops
$916Lufthansa
Find Deal
Fri, Sep 12 - Fri, Sep 19
Logo
3:30 pm - 10:25 pmPDX-TRS
21h 55m1 stop
Logo
6:30 am - 1:30 pmTRS-PDX
16h 00m1 stop
$930
Find Deal
Fri, Sep 12 - Fri, Sep 19
Logo
3:30 pm - 10:55 pmPDX-TRS
46h 25m2 stops
Logo
6:30 am - 1:30 pmTRS-PDX
16h 00m1 stop
$1,098
Find Deal
Fri, Sep 12 - Fri, Sep 19
Logo
3:20 pm - 10:25 pmPDX-TRS
22h 05m3 stops
Logo
6:35 am - 5:55 pmTRS-PDX
20h 20m3 stops
$1,298
Find Deal
Fri, Sep 12 - Fri, Sep 19
Logo
3:20 pm - 10:25 pmPDX-TRS
22h 05m2 stops
Logo
6:30 am - 5:55 pmTRS-PDX
20h 25m3 stops
$1,642
Find Deal
Fri, Sep 12 - Fri, Sep 19

Lufthansa flights from Portland to Trieste

Our best Lufthansa deals on Portland to Trieste flight tickets
Lufthansa
Nov 12
PDX7:00 amPortland
22h 05m
2 stops
TRS2:05 pmTrieste Ronchi dei Legionari
Nov 16
TRS2:45 pmTrieste Ronchi dei Legionari
40h 48m
2 stops
PDX10:33 pmPortland
$723
Find similar
Lufthansa
Nov 12
PDX7:30 amPortland
30h 15m
2 stops
TRS10:45 pmTrieste Ronchi dei Legionari
Nov 16
TRS2:45 pmTrieste Ronchi dei Legionari
40h 48m
2 stops
PDX10:33 pmPortland
$724
Find similar
Lufthansa
Sep 12
PDX10:00 amPortland
27h 25m
2 stops
TRS10:25 pmTrieste Ronchi dei Legionari
Sep 19
TRS6:30 amTrieste Ronchi dei Legionari
21h 16m
2 stops
PDX6:46 pmPortland
$916
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated July 31, 2025.
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

Price

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Wed 11/12

7:00 am-2:05 pm

2 stops22h 05m

Trieste Ronchi dei Legionari

Sun 11/16

2:45 pm-10:33 pm

2 stops40h 48m

$723

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Wed 11/12

7:30 am-10:45 pm

2 stops30h 15m

Trieste Ronchi dei Legionari

Sun 11/16

2:45 pm-10:33 pm

2 stops40h 48m

$724

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Fri 9/12

10:00 am-10:25 pm

2 stops27h 25m

Trieste Ronchi dei Legionari

Fri 9/19

6:30 am-6:46 pm

2 stops21h 16m

$916

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Fri 9/12

3:30 pm-10:25 pm

1 stop21h 55m

Trieste Ronchi dei Legionari

Fri 9/19

6:30 am-1:30 pm

1 stop16h 00m

$930

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Fri 9/12

3:30 pm-10:55 pm

2 stops46h 25m

Trieste Ronchi dei Legionari

Fri 9/19

6:30 am-1:30 pm

1 stop16h 00m

$1,098

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Fri 9/12

3:20 pm-10:25 pm

3 stops22h 05m

Trieste Ronchi dei Legionari

Fri 9/19

6:35 am-5:55 pm

3 stops20h 20m

$1,298

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Fri 9/12

3:20 pm-10:25 pm

2 stops22h 05m

Trieste Ronchi dei Legionari

Fri 9/19

6:30 am-5:55 pm

3 stops20h 25m

$1,642

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Thu 8/14

5:50 pm-2:50 pm

3 stops60h 00m

$464

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Thu 8/14

3:20 pm-8:55 am

2 stops32h 35m

$530

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Thu 8/14

7:25 pm-10:40 am

1 stop30h 15m

$583

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Trieste from

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 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 36% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 6 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

$464

Fastest flight time

21h 55m

Direct flights

None

Airports in Trieste

1 airport
The best one-way flight to Trieste from Portland in the past 72 hours is $464. The best round-trip flight deal from Portland to Trieste found on momondo in the last 72 hours is $723.
The fastest flight from Portland to Trieste takes 21h 55m
There are no direct flights from Portland to Trieste. Popular non-direct route for this connection is Portland Airport - Trieste Ronchi dei Legionari Airport.
There is 1 airport near Trieste: Trieste Ronchi dei Legionari (TRS)
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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 21h 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.

Traveling to a place near Trieste?

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

Why use momondo?

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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Airlines are sorted and displayed according to clicks in the past 7 days on momondo
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