How long does it take to fly to Trieste?

Average flight duration from State of Washington to Trieste depends on which airport you fly into and out of. Flying from Seattle to Venice Marco Polo Airport is 13h 05m on average, while flying from Pasco to Venice Marco Polo Airport is 17h 55m on average. Venice Marco Polo Airport is the most popular airport in Trieste.

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

Prices for flights from Washington to Trieste Ronchi dei Legionari Airport are updated daily.

How old do you have to be to fly from Washington 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 Washington 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.

$475 Cheap Flights from Washington to Trieste in 2026

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Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:10 pm - 9:55 pm

PDX

TRS

22h 45m

2 stops

2:40 pm - 11:55 pm

TRS

PDX

18h 15m

2 stops

$782Lufthansa

Fri, Apr 24 - Fri, May 1

8:00 am - 1:45 pm

SEA

TRS

20h 45m

2 stops

6:10 am - 12:20 pm

TRS

SEA

15h 10m

1 stop

$801Lufthansa

Tue, Mar 31 - Wed, Apr 8

8:00 am - 1:45 pm

SEA

TRS

20h 45m

2 stops

6:10 am - 12:20 pm

TRS

SEA

15h 10m

1 stop

$802Lufthansa

Tue, Mar 31 - Tue, Apr 7

1:52 pm - 9:55 pm

PDX

TRS

23h 03m

2 stops

6:00 am - 6:38 pm

TRS

PDX

21h 38m

2 stops

$970Multiple Airlines

Fri, May 8 - Fri, May 22

8:00 am - 8:00 pm

SEA

TRS

27h 00m

3 stops

8:25 pm - 3:40 pm

TRS

SEA

28h 15m

2 stops

$971Multiple Airlines

Tue, Mar 31 - Wed, Apr 8

8:35 am - 10:55 pm

PDX

TRS

29h 20m

2 stops

7:15 pm - 8:54 pm

TRS

PDX

34h 39m

2 stops

$1,271ITA Airways

Sun, May 31 - Sun, Jun 7

8:35 am - 2:30 pm

PDX

TRS

20h 55m

2 stops

6:35 am - 8:54 pm

TRS

PDX

23h 19m

2 stops

$1,321ITA Airways

Fri, May 29 - Mon, Jun 8

3:40 pm - 6:30 pm

SEA

TRS

17h 50m

2 stops

11:15 am - 8:40 pm

TRS

SEA

18h 25m

2 stops

$1,323Icelandair

Sat, Aug 15 - Tue, Sep 1

7:00 am - 10:25 am

SEA

TRS

18h 25m

2 stops

6:35 am - 7:00 pm

TRS

SEA

21h 25m

2 stops

$1,517United Airlines

Tue, Mar 31 - Tue, Apr 7

8:42 am - 10:25 am

SEA

TRS

40h 43m

3 stops

6:35 am - 11:27 pm

TRS

SEA

25h 52m

2 stops

$1,590United Airlines

Tue, Mar 31 - Tue, Apr 7

ITA Airways flights from State of Washington to Trieste

Our best ITA Airways deals on State of Washington to Trieste flight tickets

ITA Airways

May 31

PDX8:35 amPortland

29h 20m

2 stops

TRS10:55 pmTrieste Ronchi dei Legionari

Jun 7

TRS7:15 pmTrieste Ronchi dei Legionari

34h 39m

2 stops

PDX8:54 pmPortland

$1,271

ITA Airways

May 29

PDX8:35 amPortland

20h 55m

2 stops

TRS2:30 pmTrieste Ronchi dei Legionari

Jun 8

TRS6:35 amTrieste Ronchi dei Legionari

23h 19m

2 stops

PDX8:54 pmPortland

$1,321

ITA Airways

May 31

PDX8:35 amPortland

29h 20m

2 stops

TRS10:55 pmTrieste Ronchi dei Legionari

Jun 9

TRS7:15 pmTrieste Ronchi dei Legionari

34h 39m

2 stops

PDX8:54 pmPortland

$1,345

Icelandair flights from State of Washington to Trieste

Our best Icelandair deals on State of Washington to Trieste flight tickets

Icelandair

Aug 15

SEA3:40 pmSeattle/Tacoma Intl

17h 50m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Sep 1

TRS11:15 amTrieste Ronchi dei Legionari

18h 25m

2 stops

SEA8:40 pmSeattle/Tacoma Intl

$1,323

Icelandair

May 31

PDX7:05 pmPortland

38h 25m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Jun 5

TRS11:15 amTrieste Ronchi dei Legionari

33h 30m

2 stops

PDX11:45 amPortland

$1,609

Icelandair

Jun 28

PDX7:05 pmPortland

38h 25m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Jul 10

TRS11:15 amTrieste Ronchi dei Legionari

33h 30m

2 stops

PDX11:45 amPortland

$1,823

Fly from

Fly to

Route

Depart

Return

Price

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Fri 4/24

2:10 pm-9:55 pm

2 stops22h 45m

Trieste Ronchi dei Legionari

Fri 5/1

2:40 pm-11:55 pm

2 stops18h 15m

$782

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Tue 3/31

8:00 am-1:45 pm

2 stops20h 45m

Trieste Ronchi dei Legionari

Wed 4/8

6:10 am-12:20 pm

1 stop15h 10m

$801

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Tue 3/31

8:00 am-1:45 pm

2 stops20h 45m

Trieste Ronchi dei Legionari

Tue 4/7

6:10 am-12:20 pm

1 stop15h 10m

$802

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Fri 5/8

1:52 pm-9:55 pm

2 stops23h 03m

Trieste Ronchi dei Legionari

Fri 5/22

6:00 am-6:38 pm

2 stops21h 38m

$970

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Tue 3/31

8:00 am-8:00 pm

3 stops27h 00m

Trieste Ronchi dei Legionari

Wed 4/8

8:25 pm-3:40 pm

2 stops28h 15m

$971

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Sun 5/31

8:35 am-10:55 pm

2 stops29h 20m

Trieste Ronchi dei Legionari

Sun 6/7

7:15 pm-8:54 pm

2 stops34h 39m

$1,271

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Fri 5/29

8:35 am-2:30 pm

2 stops20h 55m

Trieste Ronchi dei Legionari

Mon 6/8

6:35 am-8:54 pm

2 stops23h 19m

$1,321

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Sat 8/15

3:40 pm-6:30 pm

2 stops17h 50m

Trieste Ronchi dei Legionari

Tue 9/1

11:15 am-8:40 pm

2 stops18h 25m

$1,323

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Tue 3/31

7:00 am-10:25 am

2 stops18h 25m

Trieste Ronchi dei Legionari

Tue 4/7

6:35 am-7:00 pm

2 stops21h 25m

$1,517

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Tue 3/31

8:42 am-10:25 am

3 stops40h 43m

Trieste Ronchi dei Legionari

Tue 4/7

6:35 am-11:27 pm

2 stops25h 52m

$1,590

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How to get the cheapest flight ticket from State of Washington 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

Airlines

Other information

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

Lufthansa is the most popular carrier operating from Washington to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

Delta, British Airways and Lufthansa are the top three most popular airlines that fly to Trieste from State of Washington according to our data. Delta is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 11 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

Cheap State of Washington to Trieste flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Trieste

Fastest flight time	15h 00m
Direct flights	None

The fastest flight from State of Washington to Trieste takes 15h 00m

There are no direct flights from State of Washington to Trieste. There are no popular flight routes from State of Washington to Trieste.

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When did momondo last update prices for flights from Washington to Trieste Ronchi dei Legionari Airport?
Prices for flights from Washington to Trieste Ronchi dei Legionari Airport are updated daily.
How old do you have to be to fly from Washington 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 Washington 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 use momondo?

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

Finding the right flight to Trieste from Washington is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Trieste quick and easy, saving you time and money.

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

Flights from Washington 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 Washington to Trieste?

momondo helps you find the best flight between Washington 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 Washington to Trieste right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington to Trieste flights. All you need is a valid email address and we will do the rest; it is that quick and easy.