What airlines fly to California?

United Airlines, British Airways and Lufthansa are the top three most popular airlines that fly to California from Trieste according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to California. Keep in mind that there are 8 different airlines that fly to California on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Trieste Ronchi dei Legionari Airport to California refresh daily.

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

There is 1 operator available for flights from Trieste Ronchi dei Legionari Airport to California as of September 2026.

How old do you have to be to fly from Trieste Ronchi dei Legionari Airport to California?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Trieste Ronchi dei Legionari Airport to California.

What documentation or ID do you need to fly to California?

The required travel and health documents for your California trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at California. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$566 Cheap Flights from Trieste to California in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Trieste to California

Round-trip

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

15h 55m1 stop Rome Fiumicino

4:20 pm - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

14h 10m1 stop Rome Fiumicino

$566ITA Airways

Wed, Mar 10 - Wed, Mar 17

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

15h 55m1 stop Rome Fiumicino

3:20 pm - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

14h 10m1 stop Rome Fiumicino

$578ITA Airways

Sat, Nov 7 - Wed, Nov 11

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

15h 55m1 stop Rome Fiumicino

3:20 pm - 10:55 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

22h 35m1 stop Rome Fiumicino

$578ITA Airways

Fri, Nov 13 - Tue, Nov 17

6:35 am - 9:39 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

24h 04m2 stops Rome Fiumicino Boston Logan Intl

9:15 am - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

20h 15m2 stops New York John F Kennedy Intl Rome Fiumicino

$628Air France

Mon, Feb 8 - Thu, Feb 25

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

15h 55m1 stop Rome Fiumicino

3:20 pm - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

14h 10m1 stop Rome Fiumicino

$631ITA Airways

Sat, Nov 7 - Wed, Nov 11

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

15h 55m1 stop Rome Fiumicino

3:20 pm - 10:55 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

22h 35m1 stop Rome Fiumicino

$640ITA Airways

Fri, Oct 30 - Tue, Nov 3

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

15h 55m1 stop Rome Fiumicino

3:20 pm - 10:25 amLAX Los Angeles-TRS Trieste Ronchi dei Legionari

34h 05m1 stop Rome Fiumicino

$660ITA Airways

Mon, Mar 1 - Fri, Mar 5

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

15h 55m1 stop Rome Fiumicino

3:20 pm - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

14h 10m1 stop Rome Fiumicino

$678ITA Airways

Sat, Nov 7 - Wed, Nov 11

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

15h 55m1 stop Rome Fiumicino

3:20 pm - 10:25 amLAX Los Angeles-TRS Trieste Ronchi dei Legionari

34h 05m1 stop Rome Fiumicino

$742ITA Airways

Wed, Nov 11 - Wed, Nov 18

6:35 am - 10:04 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

24h 29m2 stops Rome Fiumicino Atlanta Hartsfield-Jackson

2:50 pm - 6:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

19h 40m2 stops Amsterdam Schiphol Rome Fiumicino

$800Multiple Airlines

Wed, Mar 10 - Wed, Mar 17

Cheap last minute flights

Enter your travel dates to find the best prices.

6:10 am - 8:21 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

23h 11m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

3:20 pm - 9:55 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

21h 35m2 stops Chicago O'Hare Intl Frankfurt am Main

$705Lufthansa

Fri, Oct 2 - Fri, Oct 16

6:15 am - 1:10 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

15h 55m1 stop Frankfurt am Main

3:05 pm - 1:55 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

13h 50m1 stop Frankfurt am Main

$782Lufthansa

Thu, Oct 1 - Mon, Oct 5

6:15 am - 1:10 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

15h 55m1 stop Frankfurt am Main

8:15 am - 1:55 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

20h 40m2 stops Washington, D.C. Dulles Intl Frankfurt am Main

$784Lufthansa

Thu, Oct 1 - Mon, Oct 5

6:15 am - 8:21 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

23h 06m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

8:15 am - 1:55 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

20h 40m2 stops Washington, D.C. Dulles Intl Frankfurt am Main

$790Lufthansa

Thu, Oct 1 - Mon, Oct 5

6:10 am - 8:21 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

23h 11m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

3:05 pm - 1:55 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

13h 50m1 stop Frankfurt am Main

$811Lufthansa

Fri, Oct 2 - Fri, Oct 16

6:35 am - 1:15 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

15h 40m1 stop Rome Fiumicino

3:15 pm - 10:55 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

22h 40m1 stop Rome Fiumicino

$816ITA Airways

Fri, Oct 2 - Fri, Oct 16

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

35h 00m1 stop Rome Fiumicino

3:15 pm - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

14h 15m1 stop Rome Fiumicino

$974ITA Airways

Sat, Oct 3 - Fri, Oct 16

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

35h 00m1 stop Rome Fiumicino

3:15 pm - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

14h 15m1 stop Rome Fiumicino

$981ITA Airways

Sat, Oct 3 - Fri, Oct 16

6:15 am - 8:34 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

23h 19m2 stops Frankfurt am Main Newark

3:20 pm - 9:55 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

21h 35m2 stops Chicago O'Hare Intl Frankfurt am Main

$1,006Lufthansa

Sat, Oct 3 - Fri, Oct 16

6:15 am - 8:34 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

23h 19m2 stops Frankfurt am Main Newark

3:20 pm - 9:55 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

21h 35m2 stops Chicago O'Hare Intl Frankfurt am Main

$1,007Lufthansa

Sat, Oct 3 - Fri, Oct 16

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United Airlines flights from Trieste to California

Our best United Airlines deals on Trieste to California flight tickets

United Airlines

Nov 13

TRS6:35 amTrieste Ronchi dei Legionari

35h 59m

2 stops

LAX9:34 amLos Angeles

Nov 17

LAX7:10 amLos Angeles

18h 15m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

$922

United Airlines

Nov 7

TRS6:35 amTrieste Ronchi dei Legionari

23h 13m

2 stops

LAX8:48 pmLos Angeles

Nov 11

LAX6:00 amLos Angeles

19h 25m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

$1,170

United Airlines

Nov 7

TRS6:35 amTrieste Ronchi dei Legionari

23h 13m

2 stops

LAX8:48 pmLos Angeles

Nov 11

LAX6:00 amLos Angeles

19h 25m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

$1,173

ITA Airways flights from Trieste to California

Our best ITA Airways deals on Trieste to California flight tickets

ITA Airways

Mar 10

TRS6:35 amTrieste Ronchi dei Legionari

15h 55m

1 stop

LAX1:30 pmLos Angeles

Mar 17

LAX4:20 pmLos Angeles

14h 10m

1 stop

TRS2:30 pmTrieste Ronchi dei Legionari

$566

ITA Airways

Nov 13

TRS6:35 amTrieste Ronchi dei Legionari

15h 55m

1 stop

LAX1:30 pmLos Angeles

Nov 17

LAX3:20 pmLos Angeles

22h 35m

1 stop

TRS10:55 pmTrieste Ronchi dei Legionari

$578

ITA Airways

Nov 7

TRS6:35 amTrieste Ronchi dei Legionari

15h 55m

1 stop

LAX1:30 pmLos Angeles

Nov 11

LAX3:20 pmLos Angeles

14h 10m

1 stop

TRS2:30 pmTrieste Ronchi dei Legionari

$631

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

TriesteLos Angeles

TRS Trieste Ronchi dei Legionari - LAX Los Angeles

TRSLAX

Trieste Ronchi dei Legionari

Wed 3/10

6:35 am-1:30 pm

1 stop15h 55m

Los Angeles

Wed 3/17

4:20 pm-2:30 pm

1 stop14h 10m

$566

TriesteLos Angeles

TRS Trieste Ronchi dei Legionari - LAX Los Angeles

TRSLAX

Trieste Ronchi dei Legionari

Sat 11/7

6:35 am-1:30 pm

1 stop15h 55m

Los Angeles

Wed 11/11

3:20 pm-2:30 pm

1 stop14h 10m

$578

TriesteLos Angeles

TRS Trieste Ronchi dei Legionari - LAX Los Angeles

TRSLAX

Trieste Ronchi dei Legionari

Fri 11/13

6:35 am-1:30 pm

1 stop15h 55m

Los Angeles

Tue 11/17

3:20 pm-10:55 pm

1 stop22h 35m

$578

TriesteLos Angeles

TRS Trieste Ronchi dei Legionari - LAX Los Angeles

TRSLAX

Trieste Ronchi dei Legionari

Mon 2/8

6:35 am-9:39 pm

2 stops24h 04m

Los Angeles

Thu 2/25

9:15 am-2:30 pm

2 stops20h 15m

$628

TriesteLos Angeles

TRS Trieste Ronchi dei Legionari - LAX Los Angeles

TRSLAX

Trieste Ronchi dei Legionari

Sat 11/7

6:35 am-1:30 pm

1 stop15h 55m

Los Angeles

Wed 11/11

3:20 pm-2:30 pm

1 stop14h 10m

$631

TriesteLos Angeles

TRS Trieste Ronchi dei Legionari - LAX Los Angeles

TRSLAX

Trieste Ronchi dei Legionari

Fri 10/30

6:35 am-2:30 pm

1 stop15h 55m

Los Angeles

Tue 11/3

3:20 pm-10:55 pm

1 stop22h 35m

$640

TriesteLos Angeles

TRS Trieste Ronchi dei Legionari - LAX Los Angeles

TRSLAX

Trieste Ronchi dei Legionari

Mon 3/1

6:35 am-1:30 pm

1 stop15h 55m

Los Angeles

Fri 3/5

3:20 pm-10:25 am

1 stop34h 05m

$660

TriesteLos Angeles

TRS Trieste Ronchi dei Legionari - LAX Los Angeles

TRSLAX

Trieste Ronchi dei Legionari

Sat 11/7

6:35 am-1:30 pm

1 stop15h 55m

Los Angeles

Wed 11/11

3:20 pm-2:30 pm

1 stop14h 10m

$678

TriesteLos Angeles

TRS Trieste Ronchi dei Legionari - LAX Los Angeles

TRSLAX

Trieste Ronchi dei Legionari

Wed 11/11

6:35 am-1:30 pm

1 stop15h 55m

Los Angeles

Wed 11/18

3:20 pm-10:25 am

1 stop34h 05m

$742

TriesteLos Angeles

TRS Trieste Ronchi dei Legionari - LAX Los Angeles

TRSLAX

Trieste Ronchi dei Legionari

Wed 3/10

6:35 am-10:04 pm

2 stops24h 29m

Los Angeles

Wed 3/17

2:50 pm-6:30 pm

2 stops19h 40m

$800

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Trieste to California

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

What is the cheapest month to fly to California?

The month of October is another great option to travel to California, with average flight prices from Trieste averaging around $579.

Can stopping save me money on Trieste to California flights?

You could potentially save up to 13% on your flight if you consider stops on a Trieste to California flight.

Cheap Trieste to California flight deals and tips

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

Best Price Found	$566
Fastest flight time	15h 55m
Direct flights	None

The best flight deal from Trieste to California found on momondo in the last 72 hours is $566

The fastest flight from Trieste to California takes 15h 55m

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

Search flight deals

Frequently asked questions about flying from Trieste to California

When did momondo last update prices for flights from Trieste Ronchi dei Legionari Airport to California?
Prices for flights from Trieste Ronchi dei Legionari Airport to California refresh daily.
How many operators does momondo search for flights from Trieste Ronchi dei Legionari Airport to California?
There is 1 operator available for flights from Trieste Ronchi dei Legionari Airport to California as of September 2026.
How old do you have to be to fly from Trieste Ronchi dei Legionari Airport to California?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Trieste Ronchi dei Legionari Airport to California.
What documentation or ID do you need to fly to California?
The required travel and health documents for your California trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at California. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Trieste to California

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

Airline	Rating	Free Cancellation	Price
ITA Airways	PriceFrom $558	Free Cancellation	Rating 6.8 1,371 reviews		Search ITA Airways flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Trieste to California. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Trieste to California flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to California from Trieste. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to California, momondo offers a useful price alert feature which will track prices for flights to California from Trieste and alert you when they change.