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 12h 30m on average, while flying from Spokane to Venice Marco Polo Airport is 16h 06m 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.

$266 Cheap Flights from Washington to Trieste in 2026

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Washington to Trieste

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:31 am - 10:15 pm

SEA

TRS

25h 44m

2 stops

6:10 am - 4:00 pm

TRS

SEA

18h 50m

1 stop

$887Multiple Airlines

Tue, Sep 22 - Fri, Oct 9

6:05 pm - 10:15 pm

SEA

TRS

19h 10m

1 stop

6:10 am - 4:00 pm

TRS

SEA

18h 50m

1 stop

$894Multiple Airlines

Tue, Sep 22 - Fri, Oct 9

2:10 pm - 1:45 pm

SEA

TRS

14h 35m

1 stop

6:10 am - 12:20 pm

TRS

SEA

15h 10m

1 stop

$1,057Lufthansa

Tue, Sep 22 - Fri, Oct 9

12:50 pm - 1:55 pm

PDX

TRS

16h 05m

2 stops

6:10 am - 7:10 pm

TRS

PDX

22h 00m

2 stops

$1,099Lufthansa

Fri, Apr 24 - Fri, May 1

7:15 am - 1:55 pm

PDX

TRS

21h 40m

2 stops

2:40 pm - 11:59 pm

TRS

PDX

18h 19m

2 stops

$1,109Lufthansa

Fri, Apr 24 - Fri, May 1

2:10 pm - 10:15 pm

SEA

TRS

23h 05m

1 stop

6:10 am - 12:20 pm

TRS

SEA

15h 10m

1 stop

$1,135Lufthansa

Sun, May 17 - Sun, May 24

6:50 pm - 10:15 pm

SEA

TRS

18h 25m

2 stops

6:10 am - 12:20 pm

TRS

SEA

15h 10m

1 stop

$1,155Lufthansa

Sun, May 17 - Sun, May 24

7:15 am - 1:55 pm

PDX

TRS

21h 40m

2 stops

2:40 pm - 11:53 pm

TRS

PDX

18h 13m

2 stops

$1,167Lufthansa

Thu, May 14 - Thu, May 21

10:10 am - 10:25 pm

PDX

TRS

27h 15m

2 stops

2:40 pm - 12:02 am

TRS

PDX

18h 22m

2 stops

$1,179Lufthansa

Mon, Jul 6 - Thu, Jul 16

6:50 pm - 10:15 pm

SEA

TRS

18h 25m

2 stops

6:10 am - 4:59 pm

TRS

SEA

19h 49m

2 stops

$1,188Lufthansa

Sun, May 17 - Sun, May 24

Lufthansa flights from State of Washington to Trieste

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

Lufthansa

Sep 22

SEA2:10 pmSeattle/Tacoma Intl

14h 35m

1 stop

TRS1:45 pmTrieste Ronchi dei Legionari

Oct 9

TRS6:10 amTrieste Ronchi dei Legionari

15h 10m

1 stop

SEA12:20 pmSeattle/Tacoma Intl

$1,057

Lufthansa

Apr 24

PDX12:50 pmPortland

16h 05m

2 stops

TRS1:55 pmTrieste Ronchi dei Legionari

May 1

TRS6:10 amTrieste Ronchi dei Legionari

22h 00m

2 stops

PDX7:10 pmPortland

$1,099

Lufthansa

Apr 24

PDX7:15 amPortland

21h 40m

2 stops

TRS1:55 pmTrieste Ronchi dei Legionari

May 1

TRS2:40 pmTrieste Ronchi dei Legionari

18h 19m

2 stops

PDX11:59 pmPortland

$1,109

United Airlines flights from State of Washington to Trieste

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

United Airlines

Aug 23

SEA11:10 pmSeattle/Tacoma Intl

26h 15m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Aug 27

TRS6:35 amTrieste Ronchi dei Legionari

23h 32m

2 stops

SEA9:07 pmSeattle/Tacoma Intl

$1,385

United Airlines

Aug 23

SEA11:10 pmSeattle/Tacoma Intl

26h 15m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Aug 27

TRS6:35 amTrieste Ronchi dei Legionari

23h 32m

2 stops

SEA9:07 pmSeattle/Tacoma Intl

$1,386

United Airlines

Aug 23

SEA11:10 pmSeattle/Tacoma Intl

26h 15m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Aug 27

TRS6:35 amTrieste Ronchi dei Legionari

23h 32m

2 stops

SEA9:07 pmSeattle/Tacoma Intl

$1,396

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Tue 9/22

11:31 am-10:15 pm

2 stops25h 44m

Trieste Ronchi dei Legionari

Fri 10/9

6:10 am-4:00 pm

1 stop18h 50m

$887

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Tue 9/22

6:05 pm-10:15 pm

1 stop19h 10m

Trieste Ronchi dei Legionari

Fri 10/9

6:10 am-4:00 pm

1 stop18h 50m

$894

Quickest round-trip

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Tue 9/22

2:10 pm-1:45 pm

1 stop14h 35m

Trieste Ronchi dei Legionari

Fri 10/9

6:10 am-12:20 pm

1 stop15h 10m

$1,057

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Fri 4/24

12:50 pm-1:55 pm

2 stops16h 05m

Trieste Ronchi dei Legionari

Fri 5/1

6:10 am-7:10 pm

2 stops22h 00m

$1,099

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Fri 4/24

7:15 am-1:55 pm

2 stops21h 40m

Trieste Ronchi dei Legionari

Fri 5/1

2:40 pm-11:59 pm

2 stops18h 19m

$1,109

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Sun 5/17

2:10 pm-10:15 pm

1 stop23h 05m

Trieste Ronchi dei Legionari

Sun 5/24

6:10 am-12:20 pm

1 stop15h 10m

$1,135

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Sun 5/17

6:50 pm-10:15 pm

2 stops18h 25m

Trieste Ronchi dei Legionari

Sun 5/24

6:10 am-12:20 pm

1 stop15h 10m

$1,155

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Thu 5/14

7:15 am-1:55 pm

2 stops21h 40m

Trieste Ronchi dei Legionari

Thu 5/21

2:40 pm-11:53 pm

2 stops18h 13m

$1,167

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Mon 7/6

10:10 am-10:25 pm

2 stops27h 15m

Trieste Ronchi dei Legionari

Thu 7/16

2:40 pm-12:02 am

2 stops18h 22m

$1,179

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Sun 5/17

6:50 pm-10:15 pm

2 stops18h 25m

Trieste Ronchi dei Legionari

Sun 5/24

6:10 am-4:59 pm

2 stops19h 49m

$1,188

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

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 airlines fly to Trieste?

British Airways, Delta and Condor are the top three most popular airlines that fly to Trieste from State of Washington according to our data. British Airways is the first choice among our users, with 28% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 9 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	16h 56m
Direct flights	None

The fastest flight from State of Washington to Trieste takes 16h 56m

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

Search flight deals

Frequently asked questions about flying from Washington to 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.

Udine

Grado

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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sun 5/3

Sun 5/10

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Italy

Airlines

Cabin classes

Other Italy destinations

Other flights from Washington

Complete your trip

Feeling lucky

Fly your favorite airline to Trieste

Scandinavian Airlines

KLM

Cheap flights from Washington to Trieste from $266

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Trieste departing on 4/27. 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

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Washington to Trieste

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Lufthansa flights from State of Washington to Trieste

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

United Airlines flights from State of Washington to Trieste

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

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Trieste that are best for you.

See travel insights to Trieste from

How to get the cheapest flight ticket from State of Washington 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

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington to Trieste

Traveling to a place near Trieste?

Why use momondo?

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

Cabin classes currently available on flights to Trieste

List of cabin classes available on flights landing in Trieste. Availability may vary depending on flight origin and airline.

Popular cities in Italy

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Washington

According to popular flight searches on momondo this year

Complete your trip to Trieste

Explore popular destinations other users love

According to popular flight searches on momondo this year