In terms of precipitation, rainfall in Trieste ranges from 2.4 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. February is typically the driest time to visit Trieste when rainfall is around 2.4 in.

If weather is an important factor for your trip to Trieste, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

What is the cheapest time of day to fly from WA to TRS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Trieste as you normally would.

What airport do you fly into for flights to Trieste from Washington?

If you book a flight to Trieste from Washington, you will be flying to Ronchi dei Legionari, which is the city’s only airport. Trieste Ronchi dei Legionari (TRS) is located 18.2 mi from the center of Trieste.

Can I find deals for flights from Washington to Trieste that include hotel bookings?

Yes. In addition to deals on Washington to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington to Trieste?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Trieste.

Can I find deals for business class flights from Washington to Trieste?

Yes. Cheapflights offers flight deals from Washington to Trieste by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$336+ Flights from Washington to Trieste

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Cheap flight deals from Washington to Trieste

Round-trip from	$723 (Lufthansa)
One-way from	$336 (Kiwi.com)

From Washington to Trieste Ronchi dei Legionari

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One-way flight from Washington to Trieste Ronchi dei Legionari

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Find flight deals from Washington to Trieste

Cheapest flights from Washington to Trieste
Explore the most affordable flight options available from Washington to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.

Wed 11/198:30 amPDX - TRS

2 stops29h 15mLufthansa

Sun 11/232:45 pmTRS - PDX

2 stops36h 55mLufthansa

Deal found 7/22

$723

Wed 11/127:00 amSEA - TRS

2 stops22h 05mLufthansa

Sun 11/162:45 pmTRS - SEA

2 stops41h 00mLufthansa

Deal found 7/23

$743

Wed 10/87:10 pmSEA - TRS

2 stops34h 20mMultiple Airlines

Tue 10/2111:15 amTRS - SEA

2 stops39h 00mMultiple Airlines

Deal found 7/24

$817

Mon 9/86:15 amPDX - TRS

2 stops31h 10mMultiple Airlines

Mon 9/152:45 pmTRS - PDX

2 stops37h 01mMultiple Airlines

Deal found 7/24

$851

Best flights from Washington to Trieste
Discover carefully curated flight deals from Washington to Trieste that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 25, 2025.

Wed 11/198:30 amPDX - TRS

2 stops29h 15mLufthansa

Sun 11/232:45 pmTRS - PDX

2 stops36h 55mLufthansa

Deal found 7/22

$723

Wed 10/87:10 pmSEA - TRS

2 stops34h 20mMultiple Airlines

Tue 10/2111:15 amTRS - SEA

2 stops39h 00mMultiple Airlines

Deal found 7/24

$817

Wed 11/127:00 amSEA - TRS

2 stops22h 05mLufthansa

Sun 11/162:45 pmTRS - SEA

2 stops41h 00mLufthansa

Deal found 7/23

$743

Mon 9/86:15 amPDX - TRS

2 stops31h 10mMultiple Airlines

Mon 9/152:45 pmTRS - PDX

2 stops37h 01mMultiple Airlines

Deal found 7/24

$851

Last-minute flights from Washington to Trieste
Discover last-minute flight deals from Washington to Trieste. Data last updated July 25, 2025 and is based on user searches.

Tue 8/57:20 amSEA - TRS

3 stops30h 35mMultiple Airlines

Tue 8/1211:15 amTRS - SEA

3 stops33h 40mMultiple Airlines

Deal found 7/23

$980

Tue 8/510:00 amSEA - TRS

2 stops19h 05mLufthansa

Wed 10/86:30 amTRS - SEA

1 stop14h 25mLufthansa

Deal found 7/23

$1,039

One-way flights from Washington to Trieste
Search for one-way flight options from Washington to Trieste. Find affordable one-way fares based on user searches. Data last updated July 25, 2025.

Wed 10/810:15 amSEA - TRS

3 stops38h 20mMultiple Airlines

Deal found 7/23

$336

Wed 9/107:45 amPDX - TRS

2 stops21h 20mLufthansa

Deal found 7/24

$645

Fly from

Fly to

Route

Depart

Return

Price

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

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Wed 11/12

7:00 am-2:05 pm

2 stops22h 05m

Trieste Ronchi dei Legionari

Sun 11/16

2:45 pm-10:45 pm

2 stops41h 00m

$743

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Wed 10/8

7:10 pm-2:30 pm

2 stops34h 20m

Trieste Ronchi dei Legionari

Tue 10/21

11:15 am-5:15 pm

2 stops39h 00m

$817

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Mon 9/8

6:15 am-10:25 pm

2 stops31h 10m

Trieste Ronchi dei Legionari

Mon 9/15

2:45 pm-6:46 pm

2 stops37h 01m

$851

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Wed 10/8

10:15 am-9:35 am

3 stops38h 20m

$336

PortlandTrieste

PDX - TRS

PDXTRS

Portland

Wed 9/10

7:45 am-2:05 pm

2 stops21h 20m

$645

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Best time to book a flight from Washington to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from Washington with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Trieste

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Trieste

Get a feel of what it's like to fly with Lufthansa from Washington to Trieste by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Lufthansa

6.8

Okay

7,253 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.

Lufthansa

6.8

Okay

7,253 reviews

Lufthansa

6.8

Okay

7,253 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.

Related info for your journey

What airport do you fly into for flights to Trieste from Washington?
If you book a flight to Trieste from Washington, you will be flying to Ronchi dei Legionari, which is the city’s only airport. Trieste Ronchi dei Legionari (TRS) is located 18.2 mi from the center of Trieste.
Can I find deals for flights from Washington to Trieste that include hotel bookings?
Yes. In addition to deals on Washington to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington to Trieste?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Trieste.
Can I find deals for business class flights from Washington to Trieste?
Yes. Cheapflights offers flight deals from Washington to Trieste by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Washington to Trieste

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest$857	Average$970	FlexibilityNo cancel fee	On-time76%

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$336+ Cheap flights from Washington to Trieste (TRS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington to Trieste with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Washington to Trieste

Keep the following information in mind while searching for Washington to Trieste flight deals. Data was last updated July 25, 2025.

Round-trip from

One-way from

Find flight deals from Washington to Trieste

Cheapest flights from Washington to TriesteExplore the most affordable flight options available from Washington to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.

Explore the most affordable flight options available from Washington to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Washington to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from Washington with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington to Trieste

Reviews of airlines servicing Trieste

Get a feel of what it's like to fly with Lufthansa from Washington to Trieste by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington to Trieste. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Trieste from Washington?

Can I find deals for flights from Washington to Trieste that include hotel bookings?

How can I find direct flights from Washington to Trieste?

Can I find deals for business class flights from Washington to Trieste?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to Trieste

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Washington to Trieste

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Book with Flexibility

Travel Smart

Cheapest flights from Washington to Trieste
Explore the most affordable flight options available from Washington to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.