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 18h 45m 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 37% 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.

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 many operators does momondo search for flights from Washington to Trieste Ronchi dei Legionari Airport?

As of August 2025, there is 1 operator available to choose from 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?

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.

$665 Cheap Flights from Washington to Trieste in 2025

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Round-trip

One-way

Last minute

Cheap round-trip flights

2:35 pm - 6:30 pmSEA-TRS

18h 55m2 stops

6:35 am - 5:00 pmTRS-SEA

19h 25m2 stops

$665

Find Deal

Mon, Nov 17 - Mon, Nov 24

8:08 am - 10:25 pmSEA-TRS

29h 17m2 stops

6:30 am - 7:15 pmTRS-SEA

21h 45m2 stops

$720

Find Deal

Thu, Sep 25 - Thu, Oct 2

8:30 am - 10:45 pmPDX-TRS

29h 15m2 stops

2:45 pm - 6:40 pmTRS-PDX

36h 55m2 stops

$723Lufthansa

Find Deal

Wed, Nov 19 - Sun, Nov 23

8:30 am - 2:05 pmPDX-TRS

20h 35m2 stops

3:00 pm - 12:45 amTRS-PDX

42h 45m2 stops

$735Lufthansa

Find Deal

Wed, Nov 19 - Sun, Nov 23

10:05 am - 2:05 pmSEA-TRS

19h 00m2 stops

2:45 pm - 12:10 pmTRS-SEA

30h 25m1 stop

$745

Find Deal

Mon, Nov 17 - Mon, Nov 24

2:00 pm - 2:05 pmSEA-TRS

15h 05m1 stop

2:45 pm - 12:10 pmTRS-SEA

30h 25m1 stop

$770Lufthansa

Find Deal

Mon, Nov 17 - Mon, Nov 24

8:08 am - 10:25 pmSEA-TRS

29h 17m2 stops

6:30 am - 3:05 pmTRS-SEA

17h 35m1 stop

$780

Find Deal

Thu, Sep 25 - Thu, Oct 2

5:05 pm - 10:25 pmSEA-TRS

20h 20m1 stop

6:30 am - 5:50 pmTRS-SEA

20h 20m2 stops

$860

Find Deal

Mon, Sep 1 - Fri, Sep 5

5:05 pm - 10:25 pmSEA-TRS

20h 20m1 stop

6:30 am - 3:05 pmTRS-SEA

17h 35m1 stop

$864

Find Deal

Thu, Sep 25 - Thu, Oct 2

7:00 am - 10:45 pmSEA-TRS

30h 45m2 stops

2:45 pm - 10:45 pmTRS-SEA

41h 00m2 stops

$875Lufthansa

Find Deal

Wed, Nov 12 - Sun, Nov 16

Lufthansa flights from State of Washington to Trieste

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

Lufthansa

Nov 19

PDX8:30 amPortland

29h 15m

2 stops

TRS10:45 pmTrieste Ronchi dei Legionari

Nov 23

TRS2:45 pmTrieste Ronchi dei Legionari

36h 55m

2 stops

PDX6:40 pmPortland

$723

Find similar

Lufthansa

Nov 19

PDX8:30 amPortland

20h 35m

2 stops

TRS2:05 pmTrieste Ronchi dei Legionari

Nov 23

TRS3:00 pmTrieste Ronchi dei Legionari

42h 45m

2 stops

PDX12:45 amPortland

$735

Find similar

Lufthansa

Nov 17

SEA2:00 pmSeattle/Tacoma Intl

15h 05m

1 stop

TRS2:05 pmTrieste Ronchi dei Legionari

Nov 24

TRS2:45 pmTrieste Ronchi dei Legionari

30h 25m

1 stop

SEA12:10 pmSeattle/Tacoma Intl

$770

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Mon 11/17

2:35 pm-6:30 pm

2 stops18h 55m

Trieste Ronchi dei Legionari

Mon 11/24

6:35 am-5:00 pm

2 stops19h 25m

$665

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Thu 9/25

8:08 am-10:25 pm

2 stops29h 17m

Trieste Ronchi dei Legionari

Thu 10/2

6:30 am-7:15 pm

2 stops21h 45m

$720

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Wed 11/19

8:30 am-10:45 pm

2 stops29h 15m

Trieste Ronchi dei Legionari

Sun 11/23

2:45 pm-6:40 pm

2 stops36h 55m

$723

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Wed 11/19

8:30 am-2:05 pm

2 stops20h 35m

Trieste Ronchi dei Legionari

Sun 11/23

3:00 pm-12:45 am

2 stops42h 45m

$735

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Mon 11/17

10:05 am-2:05 pm

2 stops19h 00m

Trieste Ronchi dei Legionari

Mon 11/24

2:45 pm-12:10 pm

1 stop30h 25m

$745

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Mon 11/17

2:00 pm-2:05 pm

1 stop15h 05m

Trieste Ronchi dei Legionari

Mon 11/24

2:45 pm-12:10 pm

1 stop30h 25m

$770

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Thu 9/25

8:08 am-10:25 pm

2 stops29h 17m

Trieste Ronchi dei Legionari

Thu 10/2

6:30 am-3:05 pm

1 stop17h 35m

$780

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Mon 9/1

5:05 pm-10:25 pm

1 stop20h 20m

Trieste Ronchi dei Legionari

Fri 9/5

6:30 am-5:50 pm

2 stops20h 20m

$860

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Thu 9/25

5:05 pm-10:25 pm

1 stop20h 20m

Trieste Ronchi dei Legionari

Thu 10/2

6:30 am-3:05 pm

1 stop17h 35m

$864

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Wed 11/12

7:00 am-10:45 pm

2 stops30h 45m

Trieste Ronchi dei Legionari

Sun 11/16

2:45 pm-10:45 pm

2 stops41h 00m

$875

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

Best Price Found	$665
Fastest flight time	14h 45m
Direct flights	None
Airports in Trieste	1 airport

The best flight deal from State of Washington to Trieste found on momondo in the last 72 hours is $665

The fastest flight from State of Washington to Trieste takes 14h 45m

There are no direct flights from State of Washington to Trieste. Popular non-direct routes for this connection are Seattle/Tacoma Intl Airport - Trieste Ronchi dei Legionari Airport and Portland Airport - Trieste Ronchi dei Legionari Airport.

There is 1 airport near Trieste: Trieste Ronchi dei Legionari (TRS)

Search flight deals

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 many operators does momondo search for flights from Washington to Trieste Ronchi dei Legionari Airport?
As of August 2025, there is 1 operator available to choose from 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?
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.

Best airlines flying from State of Washington to Trieste

Compare and see reviews for airlines that fly from State of Washington to Trieste with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $857	Free Cancellation	Rating 6.8 7,317 reviews		Search Lufthansa flights

Grado

Udine

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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 $665

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Trieste departing on 11/17. 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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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

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in Trieste

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

How many operators does momondo search 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?

Best airlines flying from State of Washington to Trieste

Compare and see reviews for airlines that fly from State of Washington to Trieste with momondo

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