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 20h 20m on average. Venice Marco Polo Airport is the most popular airport in Trieste.

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 38% 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.

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

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

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.

$316 Cheap Flights from Washington to Trieste in 2025/26

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7:00 pm - 6:30 pm

SEA

TRS

38h 30m2 stops

3:15 pm - 6:05 pm

TRS

SEA

34h 50m2 stops

$1,005Turkish Airlines

Wed, Mar 4 - Sun, Mar 8

7:00 pm - 6:30 pm

SEA

TRS

38h 30m2 stops

11:15 am - 5:05 pm

TRS

SEA

38h 50m2 stops

$1,085Turkish Airlines

Wed, Feb 4 - Sun, Feb 8

7:00 am - 10:25 am

PDX

TRS

18h 25m2 stops

6:35 am - 8:43 pm

TRS

PDX

23h 08m2 stops

$1,524United Airlines

Thu, Feb 19 - Mon, Feb 23

7:00 am - 10:25 am

PDX

TRS

18h 25m2 stops

6:35 am - 6:49 pm

TRS

PDX

21h 14m2 stops

$1,532United Airlines

Thu, Feb 19 - Mon, Feb 23

12:32 pm - 10:25 am

SEA

TRS

36h 53m3 stops

6:35 am - 9:45 pm

TRS

SEA

24h 10m2 stops

$1,651United Airlines

Wed, Mar 4 - Sun, Mar 8

7:00 am - 10:25 am

SEA

TRS

18h 25m2 stops

6:35 am - 10:43 pm

TRS

SEA

25h 08m3 stops

$1,803United Airlines

Wed, Feb 4 - Sun, Feb 8

12:40 pm - 2:30 pm

PDX

TRS

16h 50m2 stops

11:15 am - 8:49 pm

TRS

PDX

18h 34m2 stops

$1,901Multiple Airlines

Fri, May 1 - Sun, May 31

1:18 pm - 10:25 am

PDX

TRS

36h 07m3 stops

6:35 am - 8:43 pm

TRS

PDX

23h 08m2 stops

$3,883United Airlines

Thu, Feb 19 - Mon, Feb 23

1:18 pm - 10:25 am

PDX

TRS

36h 07m3 stops

6:35 am - 6:49 pm

TRS

PDX

21h 14m2 stops

$3,891United Airlines

Thu, Feb 19 - Mon, Feb 23

Turkish Airlines flights from State of Washington to Trieste

Our best Turkish Airlines deals on State of Washington to Trieste flight tickets

Turkish Airlines

Mar 4

SEA7:00 pmSeattle/Tacoma Intl

38h 30m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Mar 8

TRS3:15 pmTrieste Ronchi dei Legionari

34h 50m

2 stops

SEA6:05 pmSeattle/Tacoma Intl

$1,005

Find similar

Turkish Airlines

Feb 4

SEA7:00 pmSeattle/Tacoma Intl

38h 30m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Feb 8

TRS11:15 amTrieste Ronchi dei Legionari

38h 50m

2 stops

SEA5:05 pmSeattle/Tacoma Intl

$1,085

Find similar

United Airlines flights from State of Washington to Trieste

Our best United Airlines deals on State of Washington to Trieste flight tickets

United Airlines

Feb 19

PDX7:00 amPortland

18h 25m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Feb 23

TRS6:35 amTrieste Ronchi dei Legionari

23h 08m

2 stops

PDX8:43 pmPortland

$1,524

Find similar

United Airlines

Feb 19

PDX7:00 amPortland

18h 25m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Feb 23

TRS6:35 amTrieste Ronchi dei Legionari

23h 08m

2 stops

PDX8:43 pmPortland

$1,532

Find similar

United Airlines

Mar 4

SEA12:32 pmSeattle/Tacoma Intl

36h 53m

3 stops

TRS10:25 amTrieste Ronchi dei Legionari

Mar 8

TRS6:35 amTrieste Ronchi dei Legionari

24h 10m

2 stops

SEA9:45 pmSeattle/Tacoma Intl

$1,651

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Wed 3/4

7:00 pm-6:30 pm

2 stops38h 30m

Trieste Ronchi dei Legionari

Sun 3/8

3:15 pm-6:05 pm

2 stops34h 50m

$1,005

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Wed 2/4

7:00 pm-6:30 pm

2 stops38h 30m

Trieste Ronchi dei Legionari

Sun 2/8

11:15 am-5:05 pm

2 stops38h 50m

$1,085

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Thu 2/19

7:00 am-10:25 am

2 stops18h 25m

Trieste Ronchi dei Legionari

Mon 2/23

6:35 am-8:43 pm

2 stops23h 08m

$1,524

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Thu 2/19

7:00 am-10:25 am

2 stops18h 25m

Trieste Ronchi dei Legionari

Mon 2/23

6:35 am-6:49 pm

2 stops21h 14m

$1,532

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Wed 3/4

12:32 pm-10:25 am

3 stops36h 53m

Trieste Ronchi dei Legionari

Sun 3/8

6:35 am-9:45 pm

2 stops24h 10m

$1,651

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Wed 2/4

7:00 am-10:25 am

2 stops18h 25m

Trieste Ronchi dei Legionari

Sun 2/8

6:35 am-10:43 pm

3 stops25h 08m

$1,803

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Fri 5/1

12:40 pm-2:30 pm

2 stops16h 50m

Trieste Ronchi dei Legionari

Sun 5/31

11:15 am-8:49 pm

2 stops18h 34m

$1,901

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Thu 2/19

1:18 pm-10:25 am

3 stops36h 07m

Trieste Ronchi dei Legionari

Mon 2/23

6:35 am-8:43 pm

2 stops23h 08m

$3,883

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Thu 2/19

1:18 pm-10:25 am

3 stops36h 07m

Trieste Ronchi dei Legionari

Mon 2/23

6:35 am-6:49 pm

2 stops21h 14m

$3,891

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Sun 2/1

2:35 pm-10:50 pm

3 stops23h 15m

$316

Flights are sorted by cheapest round-trip flights first.

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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

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What is the cheapest day to depart on your flight to Trieste?

The cheapest day to depart on your flight to Trieste is on a Tuesday when prices can be found for as low as $1,169. This is often the case because there is less demand to fly during this day of the week. Flights from State of Washington to Trieste on a Wednesday will generally be more expensive and average around $1,307. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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	18h 25m
Direct flights	None

The fastest flight from State of Washington to Trieste takes 18h 25m

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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Grado

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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.

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Cheap flights from Washington to Trieste from $316

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How to get the cheapest flight ticket from State of Washington to Trieste

What is the cheapest day to depart on your flight to Trieste?

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

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

What airlines fly to Trieste?

How long does it take to fly to Trieste?

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

Direct flights

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

How old do you have to be to fly from Washington 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 Washington to Trieste?

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

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

I’m not ready to book a flight from Washington 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