How long is the flight from California to Trieste?

Departing from California to Trieste will take you 14h 05m. Airlines will cover a distance of 6157 mi. This flight may include one or multiple stops.

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 are the most popular routes from California to Trieste?

When deciding which route to take from California to Trieste consider San Francisco - Trieste Ronchi dei Legionari, Los Angeles - Trieste Ronchi dei Legionari or San Diego - Trieste Ronchi dei Legionari as they are the most popular.

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

Located just 18.2 mi from the city center, Trieste Ronchi dei Legionari (TRS) is the airport most travelers will use when flying to Trieste from California.

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

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

How can I find direct flights from California to Trieste?

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

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

Yes. Cheapflights offers flight deals from California 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.

$280+ Flights from California to Trieste

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from California to Trieste with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from California to Trieste

Cheapest flights from California to Trieste
Explore the most affordable flight options available from California to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

Wed 12/176:10 pmLAX - TRS

2 stops19h 45mMultiple Airlines

Fri 12/196:35 amTRS - LAX

1 stop15h 55mMultiple Airlines

Deal found 12/13

$2,271

Wed 12/177:20 amLAX - TRS

2 stops18h 05mUnited Airlines

Wed 12/246:35 amTRS - LAX

2 stops27h 24mUnited Airlines

Deal found 12/14

$3,361

Best flights from California to Trieste
Discover carefully curated flight deals from California to Trieste that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 15, 2025.

Wed 1/213:20 pmLAX - TRS

1 stop22h 35mITA Airways

Sun 1/256:35 amTRS - LAX

1 stop15h 55mITA Airways

Deal found 12/12

$598

Thu 1/291:57 pmBUR - TRS

2 stops23h 33mMultiple Airlines

Thu 2/52:50 pmTRS - BUR

3 stops38h 58mMultiple Airlines

Deal found 12/15

$606

Fri 3/134:00 pmLAX - TRS

1 stop14h 05mLufthansa

Tue 3/316:20 amTRS - LAX

1 stop15h 45mLufthansa

Deal found 12/12

$617

Tue 1/201:10 pmSFO - TRS

2 stops44h 20mTurkish Airlines

Tue 1/276:35 amTRS - SFO

2 stops43h 10mTurkish Airlines

Deal found 12/14

$1,033

Wed 4/293:00 pmLAX - TRS

1 stop21h 55mLufthansa

Thu 5/142:40 pmTRS - LAX

2 stops18h 18mLufthansa

Deal found 12/13

$621

Wed 4/298:15 amLAX - TRS

2 stops17h 10mMultiple Airlines

Thu 5/142:40 pmTRS - LAX

2 stops18h 18mMultiple Airlines

Deal found 12/14

$622

Tue 1/277:00 amSFO - TRS

2 stops18h 25mUnited Airlines

Tue 2/36:35 amTRS - SFO

2 stops24h 04mUnited Airlines

Deal found 12/13

$1,249

Fri 3/134:00 pmLAX - TRS

1 stop14h 05mMultiple Airlines

Tue 3/316:35 amTRS - LAX

2 stops18h 50mMultiple Airlines

Deal found 12/12

$623

Tue 4/143:15 pmSFO - TRS

1 stop14h 15mITA Airways

Fri 4/246:35 amTRS - SFO

1 stop15h 40mITA Airways

Deal found 12/13

$697

Wed 5/1312:00 pmSFO - TRS

2 stops21h 30mITA Airways

Wed 5/2011:15 amTRS - SFO

1 stop35h 00mITA Airways

Deal found 12/15

$779

Wed 2/410:37 amSFO - TRS

2 stops18h 58mITA Airways

Sun 2/86:35 amTRS - SFO

2 stops21h 17mITA Airways

Deal found 12/12

$901

Wed 5/131:40 pmSFO - TRS

1 stop23h 15mLufthansa

Wed 5/206:20 amTRS - SFO

1 stop18h 45mLufthansa

Deal found 12/15

$1,169

Tue 4/144:45 pmSFO - TRS

3 stops32h 40mMultiple Airlines

Fri 4/243:45 pmTRS - SFO

2 stops34h 50mMultiple Airlines

Deal found 12/13

$1,098

Thu 1/227:00 amSAN - TRS

2 stops18h 25mUnited Airlines

Mon 1/266:35 amTRS - SAN

2 stops23h 53mUnited Airlines

Deal found 12/13

$1,463

Thu 1/298:05 amLAS - TRS

2 stops17h 20mUnited Airlines

Mon 2/26:35 amTRS - LAS

2 stops22h 37mUnited Airlines

Deal found 12/12

$1,630

Fri 1/1612:40 pmSAN - TRS

2 stops60h 45mUnited Airlines

Tue 1/206:35 amTRS - SAN

2 stops38h 18mUnited Airlines

Deal found 12/12

$1,680

Wed 1/286:50 amSNA - TRS

2 stops18h 35mUnited Airlines

Sun 2/16:35 amTRS - SNA

2 stops22h 48mUnited Airlines

Deal found 12/12

$2,041

Thu 1/296:50 amSNA - TRS

2 stops18h 35mUnited Airlines

Thu 2/56:35 amTRS - SNA

2 stops22h 42mUnited Airlines

Deal found 12/15

$2,517

Last-minute flights from California to Trieste
Discover last-minute flight deals from California to Trieste. Data last updated December 15, 2025 and is based on user searches.

Wed 12/176:10 pmLAX - TRS

2 stops19h 45mMultiple Airlines

Fri 12/196:35 amTRS - LAX

1 stop15h 55mMultiple Airlines

Deal found 12/13

$2,271

Fri 1/1612:40 pmSAN - TRS

2 stops60h 45mUnited Airlines

Tue 1/206:35 amTRS - SAN

2 stops38h 18mUnited Airlines

Deal found 12/12

$1,680

Tue 1/201:10 pmSFO - TRS

2 stops44h 20mTurkish Airlines

Tue 1/276:35 amTRS - SFO

2 stops43h 10mTurkish Airlines

Deal found 12/14

$1,033

Wed 1/213:20 pmLAX - TRS

1 stop22h 35mITA Airways

Sun 1/256:35 amTRS - LAX

1 stop15h 55mITA Airways

Deal found 12/12

$598

Wed 1/211:05 pmLAX - TRS

2 stops44h 25mTurkish Airlines

Sun 1/2511:15 amTRS - LAX

2 stops62h 35mTurkish Airlines

Deal found 12/14

$1,087

Thu 1/227:00 amSAN - TRS

2 stops18h 25mUnited Airlines

Mon 1/266:35 amTRS - SAN

2 stops23h 53mUnited Airlines

Deal found 12/14

$1,463

Tue 1/277:00 amSFO - TRS

2 stops18h 25mUnited Airlines

Tue 2/36:35 amTRS - SFO

2 stops24h 04mUnited Airlines

Deal found 12/13

$1,249

Wed 1/286:50 amSNA - TRS

2 stops18h 35mUnited Airlines

Sun 2/16:35 amTRS - SNA

2 stops22h 48mUnited Airlines

Deal found 12/12

$2,041

Thu 1/291:57 pmBUR - TRS

2 stops23h 33mMultiple Airlines

Thu 2/52:50 pmTRS - BUR

3 stops38h 58mMultiple Airlines

Deal found 12/15

$606

Thu 1/298:05 amLAS - TRS

2 stops17h 20mUnited Airlines

Mon 2/26:35 amTRS - LAS

2 stops22h 37mUnited Airlines

Deal found 12/12

$1,630

Thu 1/297:30 amLAX - TRS

2 stops17h 55mUnited Airlines

Thu 2/56:35 amTRS - LAX

2 stops23h 53mUnited Airlines

Deal found 12/15

$2,513

Thu 1/296:50 amSNA - TRS

2 stops18h 35mUnited Airlines

Thu 2/56:35 amTRS - SNA

2 stops22h 42mUnited Airlines

Deal found 12/15

$2,517

One-way flights from California to Trieste
Search for one-way flight options from California to Trieste. Find affordable one-way fares based on user searches. Data last updated December 15, 2025.

Fri 1/3012:15 pmLAX - TRS

2 stops36h 35mMultiple Airlines

Deal found 12/13

$280

Wed 1/2812:15 pmLAX - TRS

2 stops24h 00mMultiple Airlines

Deal found 12/13

$283

Tue 1/274:45 pmLAX - TRS

3 stops43h 40mMultiple Airlines

Deal found 12/13

$286

Thu 1/297:00 amLAX - TRS

2 stops39h 50mMultiple Airlines

Deal found 12/13

$293

Thu 1/224:45 pmLAX - TRS

3 stops34h 25mMultiple Airlines

Deal found 12/15

$302

Sat 1/245:30 pmLAX - TRS

3 stops38h 00mMultiple Airlines

Deal found 12/13

$308

Sun 1/258:20 amLAX - TRS

2 stops29h 30mMultiple Airlines

Deal found 12/13

$319

Wed 1/2810:30 pmONT - TRS

2 stops35h 00mKLM

Deal found 12/13

$541

Mon 4/131:33 pmONT - TRS

2 stops35h 52mUnited Airlines

Deal found 12/13

$629

Thu 1/2910:30 pmONT - TRS

2 stops35h 00mKLM

Deal found 12/13

$901

Wed 6/101:00 pmONT - TRS

2 stops36h 25mUnited Airlines

Deal found 12/13

$3,614

Find flight deals from California to Trieste

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 1 star
Round-trip from	$598 (ITA Airways)
One-way from	$280 (Kiwi.com)
Popular in	January
Cheapest in	September
Average price	$1,069

Provider with most accurate pricing for Los Angeles-Trieste Ronchi dei Legionari flight deals.

Search Deals

Provider most trusted by Cheapflights users for Los Angeles-Trieste Ronchi dei Legionari flights.

Search Deals

From California to Trieste Ronchi dei Legionari

Search Deals

One-way flight from California to Trieste Ronchi dei Legionari

Search Deals

Highest demand for flights based on searches. 61% potential increase in price ($2,244 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 62% potential price decrease ($534 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

Wed 1/21

3:20 pm-10:55 pm

1 stop22h 35m

Trieste Ronchi dei Legionari

Sun 1/25

6:35 am-1:30 pm

1 stop15h 55m

$598

BurbankTrieste

BUR - TRS

BURTRS

Burbank Bob Hope

Thu 1/29

1:57 pm-10:30 pm

2 stops23h 33m

Trieste Ronchi dei Legionari

Thu 2/5

2:50 pm-8:48 pm

3 stops38h 58m

$606

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

Fri 3/13

4:00 pm-2:05 pm

1 stop14h 05m

Trieste Ronchi dei Legionari

Tue 3/31

6:20 am-1:05 pm

1 stop15h 45m

$617

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

Wed 4/29

3:00 pm-9:55 pm

1 stop21h 55m

Trieste Ronchi dei Legionari

Thu 5/14

2:40 pm-11:58 pm

2 stops18h 18m

$621

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

Wed 4/29

8:15 am-10:25 am

2 stops17h 10m

Trieste Ronchi dei Legionari

Thu 5/14

2:40 pm-11:58 pm

2 stops18h 18m

$622

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

Fri 3/13

4:00 pm-2:05 pm

1 stop14h 05m

Trieste Ronchi dei Legionari

Tue 3/31

6:35 am-4:25 pm

2 stops18h 50m

$623

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Tue 4/14

3:15 pm-2:30 pm

1 stop14h 15m

Trieste Ronchi dei Legionari

Fri 4/24

6:35 am-1:15 pm

1 stop15h 40m

$697

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Wed 5/13

12:00 pm-6:30 pm

2 stops21h 30m

Trieste Ronchi dei Legionari

Wed 5/20

11:15 am-1:15 pm

1 stop35h 00m

$779

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Wed 2/4

10:37 am-2:35 pm

2 stops18h 58m

Trieste Ronchi dei Legionari

Sun 2/8

6:35 am-6:52 pm

2 stops21h 17m

$901

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Tue 1/20

1:10 pm-6:30 pm

2 stops44h 20m

Trieste Ronchi dei Legionari

Tue 1/27

6:35 am-4:45 pm

2 stops43h 10m

$1,033

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 32 results

Best time to book a flight from California to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from California 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 California to Trieste

What is the cheapest month to book a flight from California to Trieste?

Currently, January is the cheapest month in which you can book a flight from California to Trieste (average of $355). Flying from California to Trieste in June is currently the most expensive (average of $604). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

It’s optimal to fly from California to Trieste in the afternoon. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight at noon.

Related info for your journey

What airport do you fly into for flights to Trieste from California?
Located just 18.2 mi from the city center, Trieste Ronchi dei Legionari (TRS) is the airport most travelers will use when flying to Trieste from California.
How long is the flight from California to Trieste?
Departing from California to Trieste will take you 14h 05m. Airlines will cover a distance of 6157 mi. This flight may include one or multiple stops.
What are the most popular routes from California to Trieste?
When deciding which route to take from California to Trieste consider San Francisco - Trieste Ronchi dei Legionari, Los Angeles - Trieste Ronchi dei Legionari or San Diego - Trieste Ronchi dei Legionari as they are the most popular.
Can I find deals for flights from California to Trieste that include hotel bookings?
Yes. In addition to deals on California to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from California to Trieste?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Trieste.
Can I find deals for business class flights from California to Trieste?
Yes. Cheapflights offers flight deals from California 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.
What is the cheapest month to book a flight from California to Trieste?
Currently, January is the cheapest month in which you can book a flight from California to Trieste (average of $355). Flying from California to Trieste in June is currently the most expensive (average of $604). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for California to Trieste

John F Kennedy Intl to Vicenza flights

Newark to Vicenza flights

LaGuardia to Vicenza flights

Boston to Vicenza flights

Dulles Intl to Vicenza flights

Atlanta to Vicenza flights

San Francisco to Vicenza flights

Los Angeles to Vicenza flights

Dallas/Fort Worth to Vicenza flights

O'Hare Intl to Vicenza flights

Denver to Vicenza flights

Detroit to Vicenza flights

Seattle to Vicenza flights

Orlando to Vicenza flights

Miami to Vicenza flights

Reagan-National to Vicenza flights

Baltimore to Vicenza flights

Philadelphia to Vicenza flights

Hobby to Vicenza flights

Tampa to Vicenza flights

Minneapolis to Vicenza flights

Sky Harbor Intl to Vicenza flights

George Bush Intcntl to Vicenza flights

Indianapolis to Vicenza flights

Charlotte to Vicenza flights

Love Field to Vicenza flights

Portland to Vicenza flights

Midway to Vicenza flights

Grand Rapids to Vicenza flights

San Diego to Vicenza flights

Santa Ana to Vicenza flights

Norfolk to Vicenza flights

Austin to Vicenza flights

Raleigh to Vicenza flights

Kansas City to Vicenza flights

Cleveland to Vicenza flights

Ontario to Vicenza flights

Salt Lake City to Vicenza flights

Fort Lauderdale to Vicenza flights

San Jose to Vicenza flights

John F Kennedy Intl to Trieste flights

Hartford to Vicenza flights

Nashville to Vicenza flights

West Palm Beach to Vicenza flights

Cincinnati to Vicenza flights

Columbus to Vicenza flights

Las Vegas to Vicenza flights

St. Louis to Vicenza flights

San Antonio to Vicenza flights

New Orleans to Vicenza flights

Top 2 airlines flying from California to Trieste

Airline	Cheapest	Average	Flexibility	On-time
ITA Airways	Cheapest$579	Average$1,027	FlexibilityNo cancel fee	On-time81%
Lufthansa	Cheapest$691	Average$1,210	FlexibilityNo cancel fee	On-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$280+ Cheap flights from California 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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from California 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 California to Trieste

Cheapest flights from California to TriesteExplore the most affordable flight options available from California to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

Explore the most affordable flight options available from California to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

Find flight deals from California to Trieste

Keep the following information in mind while searching for California to Trieste flight deals. Data was last updated December 15, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from California to Trieste

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

Cheapflights Insights

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

What is the cheapest month to book a flight from California to Trieste?

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

Find hourly flight availability from California to Trieste. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

Related info for your journey

Find useful and relevant information for your journey from California 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 California?

How long is the flight from California to Trieste?

What are the most popular routes from California to Trieste?

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

How can I find direct flights from California to Trieste?

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

What is the cheapest month to book a flight from California 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 California to Trieste

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

Top 2 airlines flying from California to Trieste

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from California to Trieste
Explore the most affordable flight options available from California to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.