How long does it take to fly to Trieste?

Average flight duration from California to Trieste depends on which airport you fly into and out of. Flying from Los Angeles to Venice Marco Polo Airport is 14h on average, while flying from San Francisco to Venice Marco Polo Airport is 14h 05m on average. Venice Marco Polo Airport is the most popular airport in Trieste.

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

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

What airlines fly to Trieste?

Condor, United Airlines and British Airways are the top three most popular airlines that fly to Trieste from California according to our data. Condor is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 15 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 California to Trieste Ronchi dei Legionari Airport?

Prices for flights from California to Trieste Ronchi dei Legionari Airport are refreshed on a daily basis.

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

As of October 2026, there are 2 operators available to choose from for flights from California to Trieste Ronchi dei Legionari Airport.

How old do you have to be to fly from California 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 California 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.

$548 Cheap Flights from California to Trieste in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from California to Trieste

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:56 pm - 10:25 amSFO San Francisco-TRS Trieste Ronchi dei Legionari

26h 29m2 stops New York John F Kennedy Intl Rome Fiumicino

7:15 pm - 1:10 pmTRS Trieste Ronchi dei Legionari-SFO San Francisco

26h 55m1 stop Rome Fiumicino

$817Multiple Airlines

Mon, Nov 16 - Mon, Nov 23

3:20 pm - 6:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

18h 10m1 stop Rome Fiumicino

6:35 am - 1:30 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

15h 55m1 stop Rome Fiumicino

$826ITA Airways

Wed, Dec 2 - Sun, Dec 6

4:20 pm - 10:25 amLAX Los Angeles-TRS Trieste Ronchi dei Legionari

34h 05m1 stop Rome Fiumicino

6:35 am - 2:30 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

15h 55m1 stop Rome Fiumicino

$852ITA Airways

Wed, Mar 17 - Fri, Mar 26

4:20 pm - 10:25 amLAX Los Angeles-TRS Trieste Ronchi dei Legionari

34h 05m1 stop Rome Fiumicino

6:35 am - 2:30 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

15h 55m1 stop Rome Fiumicino

$852ITA Airways

Tue, Mar 16 - Fri, Mar 26

7:45 am - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

22h 45m2 stops Boston Logan Intl Rome Fiumicino

6:35 am - 2:30 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

15h 55m1 stop Rome Fiumicino

$859Multiple Airlines

Wed, Mar 17 - Fri, Mar 26

7:45 am - 10:25 amLAX Los Angeles-TRS Trieste Ronchi dei Legionari

18h 40m2 stops Boston Logan Intl Rome Fiumicino

11:15 am - 1:15 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

35h 00m1 stop Rome Fiumicino

$909Multiple Airlines

Wed, Mar 17 - Sun, Mar 28

7:45 am - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

22h 45m2 stops Boston Logan Intl Rome Fiumicino

6:35 am - 2:30 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

15h 55m1 stop Rome Fiumicino

$909Multiple Airlines

Wed, Mar 17 - Sat, Mar 27

9:40 pm - 10:55 pmSFO San Francisco-TRS Trieste Ronchi dei Legionari

40h 15m2 stops Munich Franz Josef Strauss Rome Fiumicino

11:15 am - 7:35 pmTRS Trieste Ronchi dei Legionari-SFO San Francisco

17h 20m2 stops Rome Fiumicino Munich Franz Josef Strauss

$1,364Lufthansa

Tue, Dec 15 - Fri, Dec 25

9:40 pm - 2:30 pmSFO San Francisco-TRS Trieste Ronchi dei Legionari

31h 50m2 stops Munich Franz Josef Strauss Rome Fiumicino

3:15 pm - 2:50 pmTRS Trieste Ronchi dei Legionari-SFO San Francisco

56h 35m2 stops Rome Fiumicino Munich Franz Josef Strauss

$1,374Lufthansa

Tue, Dec 15 - Sun, Jan 10

9:40 pm - 2:30 pmSFO San Francisco-TRS Trieste Ronchi dei Legionari

31h 50m2 stops Munich Franz Josef Strauss Rome Fiumicino

11:15 am - 2:50 pmTRS Trieste Ronchi dei Legionari-SFO San Francisco

36h 35m2 stops Rome Fiumicino Munich Franz Josef Strauss

$1,414Lufthansa

Tue, Dec 15 - Sat, Jan 9

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KLM flights from California to Trieste

Our best KLM deals on California to Trieste flight tickets

KLM

Nov 16

SFO7:00 amSan Francisco

22h 30m

2 stops

TRS2:30 pmTrieste Ronchi dei Legionari

Nov 23

TRS6:35 amTrieste Ronchi dei Legionari

25h 08m

2 stops

SFO10:43 pmSan Francisco

$916

KLM

Mar 18

LAX2:50 pmLos Angeles

19h 40m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Mar 26

TRS3:15 pmTrieste Ronchi dei Legionari

29h 30m

2 stops

LAX12:45 pmLos Angeles

$1,421

SWISS flights from California to Trieste

Our best SWISS deals on California to Trieste flight tickets

SWISS

Mar 16

LAX8:30 pmLos Angeles

42h 25m

2 stops

TRS10:55 pmTrieste Ronchi dei Legionari

Mar 26

TRS6:35 amTrieste Ronchi dei Legionari

19h 00m

2 stops

LAX5:35 pmLos Angeles

$1,028

SWISS

Mar 16

LAX8:30 pmLos Angeles

38h 00m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Mar 27

TRS11:15 amTrieste Ronchi dei Legionari

37h 15m

2 stops

LAX4:30 pmLos Angeles

$1,117

SWISS

Dec 2

LAX7:30 pmLos Angeles

38h 00m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Dec 6

TRS3:15 pmTrieste Ronchi dei Legionari

58h 20m

2 stops

LAX4:35 pmLos Angeles

$1,247

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoTrieste

SFO San Francisco - TRS Trieste Ronchi dei Legionari

SFOTRS

San Francisco

Mon 11/16

10:56 pm-10:25 am

2 stops26h 29m

Trieste Ronchi dei Legionari

Mon 11/23

7:15 pm-1:10 pm

1 stop26h 55m

$817

Quickest round-trip

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Wed 12/2

3:20 pm-6:30 pm

1 stop18h 10m

Trieste Ronchi dei Legionari

Sun 12/6

6:35 am-1:30 pm

1 stop15h 55m

$826

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Wed 3/17

4:20 pm-10:25 am

1 stop34h 05m

Trieste Ronchi dei Legionari

Fri 3/26

6:35 am-2:30 pm

1 stop15h 55m

$852

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Tue 3/16

4:20 pm-10:25 am

1 stop34h 05m

Trieste Ronchi dei Legionari

Fri 3/26

6:35 am-2:30 pm

1 stop15h 55m

$852

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Wed 3/17

7:45 am-2:30 pm

2 stops22h 45m

Trieste Ronchi dei Legionari

Fri 3/26

6:35 am-2:30 pm

1 stop15h 55m

$859

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Wed 3/17

7:45 am-10:25 am

2 stops18h 40m

Trieste Ronchi dei Legionari

Sun 3/28

11:15 am-1:15 pm

1 stop35h 00m

$909

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Wed 3/17

7:45 am-2:30 pm

2 stops22h 45m

Trieste Ronchi dei Legionari

Sat 3/27

6:35 am-2:30 pm

1 stop15h 55m

$909

San FranciscoTrieste

SFO San Francisco - TRS Trieste Ronchi dei Legionari

SFOTRS

San Francisco

Tue 12/15

9:40 pm-10:55 pm

2 stops40h 15m

Trieste Ronchi dei Legionari

Fri 12/25

11:15 am-7:35 pm

2 stops17h 20m

$1,364

San FranciscoTrieste

SFO San Francisco - TRS Trieste Ronchi dei Legionari

SFOTRS

San Francisco

Tue 12/15

9:40 pm-2:30 pm

2 stops31h 50m

Trieste Ronchi dei Legionari

Sun 1/10

3:15 pm-2:50 pm

2 stops56h 35m

$1,374

San FranciscoTrieste

SFO San Francisco - TRS Trieste Ronchi dei Legionari

SFOTRS

San Francisco

Tue 12/15

9:40 pm-2:30 pm

2 stops31h 50m

Trieste Ronchi dei Legionari

Sat 1/9

11:15 am-2:50 pm

2 stops36h 35m

$1,414

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from California 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

Prices

Airlines

Other information

Can stopping save me money on California to Trieste flights?

You could potentially save up to 35% on your flight if you consider stops on a California to Trieste flight.

Cheap California to Trieste flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from California to Trieste

Best Price Found	$548
Fastest flight time	14h 10m
Direct flights	None

The best one-way flight to Trieste from California in the past 72 hours is $548. The best round-trip flight deal from California to Trieste found on momondo in the last 72 hours is $817.

The fastest flight from California to Trieste takes 14h 10m

There are no direct flights from California to Trieste. There are no popular flight routes from California to Trieste.

Search flight deals

Frequently asked questions about flying from California to Trieste

When did momondo last update prices for flights from California to Trieste Ronchi dei Legionari Airport?
Prices for flights from California to Trieste Ronchi dei Legionari Airport are refreshed on a daily basis.
How many operators does momondo search for flights from California to Trieste Ronchi dei Legionari Airport?
As of October 2026, there are 2 operators available to choose from for flights from California to Trieste Ronchi dei Legionari Airport.
How old do you have to be to fly from California 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 California 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 California to Trieste

Compare and see reviews for airlines that fly from California to Trieste with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $499	Free Cancellation	Rating 6.8 8,263 reviews		Search Lufthansa flights
ITA Airways	PriceFrom $547	Free Cancellation	Rating 6.8 1,381 reviews		Search ITA Airways flights

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Why use momondo?

Why should I use momondo to find a flight deal from California to Trieste?

It is quick and easy to find California to Trieste flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Trieste that suits you.

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

Yes. momondo enables you to select and highlight flights to Trieste from California with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from California to Trieste.

I’m not ready to book a flight from California to Trieste right now. Can momondo alert me if prices change?

Price alerts on flights to Trieste from California are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.